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TR-20 User Manual - NRCS Irrigation ToolBox

1. Elevation Discharge End Area Top Width Friction Slope cfs ft2 ft ft ft 1276 0 0 0 0 0 00047 1278 9 50 53 40 0 00047 1279 5 100 84 55 0 00051 1280 4 250 141 78 0 00065 1281 1 500 218 129 0 00090 1281 7 750 292 160 0 00108 1282 0 1000 355 166 0 00111 1282 7 1500 465 177 0 00103 1283 3 2000 575 186 0 00088 1283 9 2500 695 196 0 00074 1284 6 3000 825 207 0 00062 1285 2 3500 970 233 0 00054 1285 9 4000 1130 251 0 00046 1286 5 4500 1300 265 0 00041 1287 0 5000 1425 276 0 00039 Back at the WinTR 20 System Controller Editor window select Stream Cross Section to begin the data entry process for these three ratings When the Stream Cross Section editor window comes up select the arrow to the right of Cross Section Identifier field Notice that the three reaches requiring rating curves show up DF 6 LB 4 LL 31 Stream Cross Section Current File C YWinTR20ManualsiData_ExamplesiExa TBR DF 6 Delete i LL 31 Ho Changes Accept Changes Close Close Figure 4 21 WinTR 20 User Guide 90 Revision Date July 23 2004 Highlight the DF 6 and then hit return Enter all the data for this cross section low ground elevation may be left blank Note that the data are entered within the boxes on the right When all four pieces of data elevation discharge end area top width and friction slope have b
2. Types Check Output File Box Graphic Type Hydrograph Select Hydrograph Chart bmp Peak Flow Select Peak Flow Chart bmp Time Analysis Select Time Analysis bmp Multiple Hydrographs None Select Storm Select Alternate Select Location Select Location Identifier Storm Pulldown Hydrograph Peak Flow Time Analysis menu Alternate Pulldown Hydrograph Peak Flow menu Sub Area Pull down Hydrograph Peak Flow menu Reach Pull down Hydrograph Peak Flow menu Outlet Check Box Hydrograph Peak Flow Time Analysis WinTR 20 User Guide Revision Date July 23 2004 To generate a hydrograph plot do the following steps 1 d 10 11 12 13 14 Ix WinTR 20 User Guide Graphic Type Default is set on Hydrograph option button Multiple Hydrographs Default is set on None Select Storm names Click Enter to move down to Alternate Leave Alternate blank if no data is entered from the Main Window for Alternative Analysis Select Sub Area names Display button is now visible Click on the Display button to view the Hydrograph plot for Sub Area An example of the Single Sub Area Hydrograph window is shown in Figure 3 49 Plot Hydrograph for Reach Select a reach name Alternate and Sub Area should be blanks Select either Upstream or Downstream Display button is visible Click on the Display button to view the Hydrograph plot f
3. LPRINT 10 STORM FROM STR 1 TO XSEC 1 20 DATA amp OUTPUT OPTIONS ON 30 508 50 40 0 0 0 0 50 100 00 97125 60 300 00 118 20 70 600 00 189 25 80 624 56 200 00 90 1000 00 364 35 100 1500 00 662 99 110 2100 00 963 82 120 2500 00 1134 18 130 140 150 0 0 17 0 160 3 0 18 0 170 15 20 2 180 33 22 5 190 54 254 0 200 T9 28 0 210 948 70 220 1009 KS 230 1071 80 240 1265 9552 250 260 T5 0 533 1 1 270 1 t 1 280 1 1 290 300 310 542 1 0 2 207 0T 320 330 340 130 Revision Date July 23 2004 Table 5 4 Converted Input Data WinTR 20 Version 1 0 SAMPLE 1 JOB USES 24HR TYPE II STORM FROM STR 1 TO XSEC 1 WITH FULLPRINT CROSS SECTION DATA amp OUTPUT OPTIONS ON SUB AREA Area 1 Reach 1 1 2000 75 0 0 330 YY STREAM REACH Reach 1 Reach 2 Struct 1 a Reach 2 OUTLET Xsec 1 5400 0 5400 0 YY STORM ANALYSIS Storm 01 0 0 5 20Type II 2 STREAM CROSS SECTION Xsec 1 508 50 503 50 0 0 0 0 0 0 Missing 505 21 100 0 TIKAI 36 83 506 74 300 0 118 20 42 98 508 28 600 0 189 25 48 52 508 50 624 6 200 00 69 23 509 51 1000 0 364 35 262 39 510 37 1500 0 662 99 392 74 531 507 2100 0 963 82 449 83 511 44 2500 0 1134 18 471 05 STRUCTURE RATING Struct 1 521 50 521 50 0 0 17 00 521 60 3 0 18 00 521 80 15 0 20 20 522 00 33 0 22 50 522 20 54 0 25 00 522 40 79 0 28 00 526 20 948 0 70 00 526 40 1009 0 75 00 52
4. tructure Id Part of new Stream Reach Reach Structure Identifier nput Hydrograph Location Used to identify downstream reach identifier for reach upstream i Used to identify downstream reach identifier Start Routing Elevation New Structure Rating If more than one structure starting elevation is specified for a structure a new structure rating is required V Display Code ILE Display Code UM Display Code ojos o E ejo m z fele I9 S miS Aad LS g luis a ollo S E SIoIE zu S Ole Z EE EISE Sals amp Q lt jes S Ee ala pa amp gs E e ES ra 9 e S 9 5 esl Variable Converter Usage Data Code Identify record type Input Hydrograph Location Output Hydrograph Location Used to identify downstream reach identifier Reach Length New Stream Reach Channel Length PROCEDURE 1 Used to determine which procedure is used Flood Plain Length New Stream Reach Reach Valley Length IRSE PROCEDURE 2 Routing Coefficient 0 Routing Exponent m NOT USED P V Display Code New Stream Reach Reach Peak Output Code Variable Converter Usage Identify record type ADDHYD ection Id tructure Id i Used to identify downstream reach identifier for reach or sub area upstream i Used to identify downstream reach identifier for reach or sub area upstream i V Display Code ILE Display Code UM Display Code Data Code Operation Code Input Hydrograph Location Input Hydrograph
5. ALTER Variable Converter Usage Data Code Identify record type ALTER Identify record type Operation Code Identify record type DELETE Variable Converter Usage Data Code Identify record type DELETE Identify record type Operation Code Identify record type WinTR 20 User Guide 141 Revision Date July 23 2004 Appendix C Errors and Warning Messages 1st WinTR 20 input file record is not the required WinTH 20 Version 1 0 record CANNOT PROCESS FILE Blank numeric Tied Input Field Name for Identifier Name Identifier of Data Section Data Blank record EAT at end of Data Section Data Section Header planks text field Input Field Name for Identifier Name Identifier of Data Section Data Section Both TABUE Field name and Another Input Field Name cannot be the same Input for Identifier Name Identifier of Data Section Data Section Header XXX Cannot find TR 20 input data file Input File Name Circular pattern detected for reaches Data Section Name Data Section Header is not a TR 20 header Skip to next Data Section Decimal point in integer field Input for Input Field Name and Identifier Name Identifier of Data Section Deleted sub area or reach Identifier for Alternate Alternate Identifier was not part of watershed Duplicate Data Section Header section in TH 20 input file Duplicate Input Field Name Input encountered for Identifier Name Identifier of Data Section
6. WinTR 20 User Guide 109 Revision Date July 23 2004 Input Hydrograph Divert Flow Out Through Culvert SSE Reach r1 2000 ft long Reach dcculv 10 ft long The reach dsculv is connected to the Outlet since WinTR 20 requires that all reaches have a receiving reach another reach or the Outlet In actuality the diverted flow out of the culvert is lost from the system The information needed to analyze this problem will be at the junction of the split flow The output for the Output in this particular example will not be used Data Entry WinTR 20 Identifier Record Entry After starting the WinTR 20 System Controller Editor and selecting New WinTR 20 File give the new input file a logical name and directory location When the WinTR 20 Identifier screen comes up enter 0 5 cfs for minimum hydrograph value and fill in a Watershed Description Insert 4sc1 jpg here WinTR 20 User Guide 110 Revision Date July 23 2004 Example Problem 4 Split Flow Example Input Hydrograph and 100 year Events Close Close Input Reach and Split Rating Information Two rating curves are needed for this example The first one will be called xsec 10 which will describe the rating for the 2000 foot diked section of channel The actual stage discharge end area top width friction slope information was developed from an outside program such as HEC RAS This data was provided in the beginning of this
7. Sub Area Current File C WinTR20 ManualsWata_ExamplestExample inp Jf Sub Area Sub Area identifier 003 Delete Sub Area Sub Area Reach Identifier ROZ v Sub Area Rsin Gage Identifier Sub Area Drainage Area 1 90 sq mi Sub Area Peak Output Dode Yes No Blank Sub Area Weighted Curve Number 72 2 30 Sub Area Time ot Concentration Sub Area Hydrograph hc Output Code Ves No Blank Sub Area Time Analysis Code f es No T Blank Sub Area Hydrograph File Codes Yes No Blank Ho Changes Accept Changes Close Close Figure 4 17 Sub Area 003 WinTR 20 User Guide 85 Revision Date July 23 2004 Note that Sub Area Rain Gage Identifier is left blank This field would only be used if the watershed analysis uses different rainfall distributions between sub areas Since this example will be using the NRCS Rainfall Type I Distribution for the entire watershed no entry is required Enter the remainder of the data for all the sub areas As the entry for each sub area is completed note that the list within the drop down windows next to the sub area identifier and sub area reach identifier grows to include new sub areas and reaches The screen captures below show how these drop down menus should appear once all the data have been entered Click Accept Changes Close to leave this window Sub Area Current File C WinTR20 Manuals Data_Examples Example2 inp Sub Area
8. called from this window 4 Click on Accept Changes Close button when done for the interface to accept the data 5 Also the user could delete the current alternate by clicking on Delete Current Alternate then repeating steps one through four as desired WinTR 20 User Guide 21 Revision Date July 23 2004 Alternate Anaylsis Current File C umdgis mdinterface tr20 tr20in inp DER Delete Current E Alternate Alternate A sis Window iti ation about changes in the i from the starting condition for creating alternative watershed analyses Changes can only be made to the land areas Sub Areas and the stem Reaches Alternative information is 1 ges made to the first e second alternate along with any alternate two specific changes This window contains only a summary listing of the Sub areas and Heaches that are changed with an alternate The actual modified Sub area and reach data are entered on the Sub Area and Reach No Changes Accept Changes windows that are called from this window Close Close Figure 3 14 Alternate Analysis Window Dimensionless Unit Hydrograph To enter dimensionless unit hydrograph data click on the Dimensionless Unit Hydrograph from the data section name list Figure 3 6 The Dimensionless Unit Hydrograph window will appear as shown in Figure 3 15 your dimensionless unit hydrograph editor will come up with a blank window until you have entered the Dimensionless Unit Hydrograph Data Any d
9. 0087 0087 0087 0087 0087 0087 0087 0087 Stream Cross Section Window Enter or edit channel routing discharge storage rating data The Stream Cross Section Identifiers entered should also appear as Reach Cross Section Identifiers with the Stream Reach data Rating point y information is sorted by increasing elevation Display Data as it is entered Ho Changes Accept Changes Close Close Figure 3 23 Stream Cross Section Window Input Output Plots File Edit Help FLOW cts X END AREA sqft OTOP WIDTH ELEVATION H alts inp Figure 3 24 Display Data Cross Section Plot WinTR 20 User Guide 31 Revision Date July 23 2004 Stream Reach Recall that the term Reach applies to stream reaches and strcturees To enter stream reach data click on the Stream Reach from the Main Window Figure 3 6 Once the stream reach is selected the Stream Reach window will appear as shown in Figure 3 25 your stream reach editor will come up with a blank window until you have entered the stream reach data To generate the stream reach for the model do the following steps 1 WinTR 20 User Guide Enter the Stream Reach Identifier Unique alphanumeric string identifying the stream reach Outlet is not acceptable as a Stream Reach Identifier Enter Stream Receiving Reach Identifier Name of the reach directly downstream from the Stream Reach Identifier Must match another Stream Reach Identifie
10. Enter Low Ground Elevation Elevation for lowest elevation in flood plain The ground elevation may be lower than bankfull elevation Blank defaults to bankfull elevation Hit Enter Enter Stream Identifier Unique alphanumeric string identifying the stream where the cross section is located Leave blank if Flood Economics output is not desired Hit Enter Enter Stream Station Valley station at the lower end of reach that is represented by the cross section Leave blank if Flood Economics output is not desired Hit Enter Enter the following variables for each cross section Cross Section Elevation feet Cross Section Discharge cfs Cross Section End Area sq ft Cross Section Top Width feet and Cross Section Slope dimensionless Also HEC RAS Reformatter takes the HEC RAS output file and develops rating a table formatted for WinTR 20 See Chapter 6 Display Data button should now be visible Click on Display Data button to view the cross section plot An example of the Cross Section plot is shown in Figure 3 24 Also the user could delete the current stream cross section by clicking on the Delete Cross Section button then repeating steps one through eight as desired to enter a new stream cross section Click on Accept Changes Close for the interface to accept the data 30 Revision Date July 23 2004 Stream Cross Section Current File C TR20_Beta_Test DataSets alts inp Cel Friction Slope 008
11. Storm next to the Multiple Hydrographs section From the Storm pull down menu select historic From the Reach pull down menu select dc culv then select upstream and hit return Next go back up to the Storm pull down menu and select 100 yr then hit return The two storms should show up in the Multiple Hydrographs window to the right Select WinTR 20 User Guide 119 Revision Date July 23 2004 Display and the user should see the two individual hydrographs of the diverted flow out through the culvert for both the historic and 100 year event File Edit Help Hydrograph G Reach dc culv Upstream historic 100 yr maomrrroo o 5 10 15 20 25 30 35 40 TIME hr divert out WinTR 20 User Guide 120 Revision Date July 23 2004 Chapter 5 WinTR 20 Converter 5 1 Description The data converter transforms old TR 20 input data into the current WinTR 20 input format The converter program is a Fortran90 batch process and uses the TR 20 input specifications User Documentation 2002 Appendix C as the basis for input conversions The Converter is included with the WinTR 20 system package and is automatically placed in the subdirectory Executables during the installation process When the WinTR20 Controller Editor is started one of the File menu choices is Convert old Data see Figure 5 1 File Menu Main Window Making this choice activates the TR 20 Converter and the program asks for an
12. When Select Display and you should see this plot has been zoomed in to 0 to 100 hours f you get an error message at this point that states No data for requested plot found it likely means that the hydrograph output option has not been set Go back to Global Output and select yes for sub area and reach hydrographs save the input and rerun the model The hydrograph plot should now work WinTR 20 User Guide 104 Revision Date July 23 2004 Input Output Plots File Edit Help 4600 with res 1400 1200 AA 20 30 40 50 60 0 80 S0 TIME hr Figure 4 33 For the impact of a reservoir just upstream of the city close out of the current plot to return to the main Graphics Output window and select the box next to Outlet and press Display button That result should appear as this plot has been zoomed in to the 0 to 50 hour view WinTR 20 User Guide 105 Revision Date July 23 2004 Input Output Plots File Edit Help Hydrograph Storm 25 yr G Outlet D E t H A R G E TIME hr Figure 4 34 This final example utilizes two features not found in the previous examples Input Hydrograph and Split Flow Input Hydrograph allows the user to input a hydrograph directly into a WinTR 20 model Inputting a historic hydrograph from gage information would be an example of this type of application The Split Flow function in WinTR 20 will split an inflow hyd
13. 5 6 Us 8 0 0 0 3 8 6 9 9 a 0 5 i 0 57 166 P Oo OU O O0 QU HM O uw pg omo otmmvo SI 09 11 2003 11 14 routed through a reservoir 11 666 0 1074 5 543 3 20 3 135 6 178 130 91 67 53 44 36 33 30 28 25 24 FEN 21 19 16 FB MooavuwoowbunhoouoduoHmH oonuawoobBuJubhohRbhHounood ooaohBonoweoNowuwbHBu mMuounu Figure 3 42 WinTR 20 Hydrograph File Window 53 Revision Date July 23 2004 File Display Current File C XIR20 Beta TestWataSetsWSpringlawn ecn DAR Print View FLOOD ECONOHICS ALPHA TEST English 2 2 Springlawn Rd bridge accomodating drainage area from parts of College Hill and Northside in Cincinnati Ohio Flow Frequency Pct Chancei0 YEAR Hain Chann Hain Chann Hain Chann Hain Chann Hain Chann Hain Chann Hain Chann Hain Chann 999 00 573 00 999 00 630 00 999 00 412 00 999 00 36 00 25 YEAR 100 YEAR 391 6 260 7 3588 4 211 8 Figure 3 43 WinTR 20 FloodEcon File Window Plotting Viewing and Printing Results After the WinTR 20 has finished the computations the user can begin viewing plotting and printing the results Under the WinTR 20 Main Window View and Plots has the following options View The view menu currently includes Schematic See Figure 3 45 Input File See Figure 3 39 Printed Page File See Figure 3 38 Error File See Figure 3 40 Debug File
14. 76 0 003103 964 6 1000 285 82 0 003795 964 8 1100 298 115 0 004025 The main channel is 2 000 feet long with the culvert on the upstream end of the entire reach The rating table for the culvert flow out of the channel was also developed externally to WinTR 20 i e simple Inlet Control calculations HEC RAS BPR charts etc The rating is as follows WinTR 20 User Guide 107 Revision Date July 23 2004 Elevation msl Discharge cfs 958 0 0 959 2 5 959 8 10 960 4 15 961 0 20 961 9 25 963 0 30 963 4 35 964 4 40 965 6 45 Storm Data Two events will be simulated The first simulation will be to route an actual hydrograph measured at a gage located in the upstream watershed through the reach where the culvert is located The gage data for the upstream watershed is as follows Time hours Discharge cfs 0 0 1 1 2 4 3 9 4 177 5 273 6 555 7 680 8 618 9 523 10 447 11 389 12 349 13 320 14 296 15 275 16 255 17 310 18 350 19 375 20 210 21 150 22 47 23 T3 24 50 25 27 27 14 28 5 29 1 30 0 WinTR 20 User Guide 108 Revision Date July 23 2004 For the other simulation a 100 year return period event will be simulated The data for this event is as follows e Pioo 6 5 inches e 24 hour Type I Rainfall Distributi
15. Help Facilities Help windows of a general nature on the program system are available via the new user button available at program start up or from the Help pull down on the main window All of the Help windows are available from the pull down while only selected ones are available via the New User Click Here button The data entry windows that allow for entry and or editing of input data contain additional Help in the form of information about the current window and information about each variable to be entered This Help is available by clicking the window or variable name on the entry window A Help box opens in the lower left comer of the entry window and displays the window or variable name its description and range of values if appropriate Only window and variable names shown in yellow have such help available A second click on the window or variable name closes the Help box Close Figure 3 4 Help Facilities Window Screen Getting Started Help I Jr Getting Started To EDIT WinTR 20 INPUT FILE Select one of the first three File pull down choices New WinTR 20 File Open Existing WinTR 20 File and Re Open Last Session on the main window No matter which of the three are selected the WinTR 20 Identifier entry window appears Make sure the proper input unit system English or metric is selected Once the information on the window is completed accept the data by clicking the Accept Changes Close button The WinTA
16. See Figure 3 41 Hydrograph File See Figure 3 42 and FloodEcon File Figure 3 43 Plots Brings up the Graphics Output window See Figure 3 46 and Table 3 4 for more details WinTR 20 User Guide 54 Revision Date July 23 2004 View Plots Schematic Input File See Figure 3 46 and Table 3 4 Printed Page File Error File Debug File Hydrograph Fy FloodEcon fle Y nTR 20 Editor 20 Current File C XTR20 Beta TestiDataSetsWA1 inp File View Run Plots Help Alternate Analysis Dimensionless Unit Hydrograph Time Analysis MX WinTR 20 Version 1 0 Verification Figure 3 44 WinTR 20 Main Window WinTR 20 Watershed Schematic DER Fie Edt View IRIE v0 s Le ie Figure 3 45 WinTR 20 Watershed Schematic Window WinTR 20 User Guide 55 Revision Date July 23 2004 DEK Graphics Output Current File C TR20_Beta_Test DataSets alts inp Graphics Output Window Enter or edit data related to displaying output graphics Type of graphic is selected and appropriate alternate storm and location sub area reach and Outlet are selected A Display button is visible when formation to define the plot has been ac nio selected entered Three types of plots are available Hydtrographs peak flow drainage area vs peak and Time flow descending ordered hpdrograph A hydrograph plot can contain up to 10 hydrographs Figure 3 46 Graphics Output Window Table 3 4 Graphics Output
17. The viewing quality may be diminished with this color selection as the background color around variable names and other labels may not appear the same as shown in the figures in this manual 2 2 Installation Procedure To install the software onto your hard disk does the following Insert the WinTR 20 CD into the CD drive Y The setup program should run automatically when the user clicks on the WinTR 20 CD If the setup program does not run use the window explorer to start the setup exe program from the CD Follow the setup instructions on the screen The setup program will automatically create a program group called WinTR 20 The WinTR 20 program will be listed under the Programs menu which is located on the Start menu 2 3 Uninstall Procedure To uninstall the software do the following From the Start Menu select Settings and then Control Panel From the Control Panel folder select Add Remove Programs gt From the Tab marked as Install Uninstall select the WinTR 20 program and then press the Add Remove button Follow the uninstall direction on the screen and the software will be removed from your hard drive WinTR 20 User Guide 11 Revision Date July 23 2004 Chapter 3 Users Overview The WinTR 20 Watershed Hydrology Model is an NRCS computer program developed to predict the runoff resulting from rainfall over a watershed The WinTR 20 model is the heart of the system and computes the runoff hydrographs and perf
18. 0 square miles associated with it already If we were to enter 4 0 square miles within the Input Hydrograph data the program accumulate this drainage area with the area from Sub Area sub 001 to come up with an erroneous 8 0 square miles at the split hydrograph point Insert 4sc3 jpg here WinTR 20 User Guide 115 Revision Date July 23 2004 Input Hydrograph Current File H tr20 work group quick user guide diver ba t 823 375 After the data has been entered select the Display Data to view the hydrograph Insert 4sc4 jpg here i Input Output Plots O xi File Edt Help Input Hydrograph elk ck hyd mowmwrrow o 10 125 15 175 20 225 25 275 30 TIME hr divert inp Close the hydrograph window and select Accept Changes Close to return to the main System Controller Editor screen WinTR 20 User Guide 116 Revision Date July 23 2004 Viewing Schematic Running the Model Viewing Output Schematic After returning to the main System Controller Editor select Default Peak Output Code from within the Global Output screen Save the file After saving the View option should appear along the top of the window Select Schematic from the View pull down menu It should appear as follows Insert 4sc19 jpg here ojx File Edit View Running and Viewing Printed Page Output Closing out the schematic and returning to the main WinTR 20 Controller Editor
19. 1032 7 rl 3 96 671 4 1032 7 DOWNSTREAM 635 2 991 9 dc cul 0 04 37 4 40 8 DOWNSTREAM 37 4 40 8 OUTLET 4 00 61245 1032 7 The output can be interpreted as follows For the historic event a maximum of 37 cfs is diverted out of the channel through the culvert At the downstream of reach r1 the peak discharge is 635 cfs The volume of water lost from the main channel through the culvert is approximately 49 Acre Feet For the 100 year event the peak discharge just upstream of the culvert is 1 033 cfs The peak discharge diverted out of the channel through the culvert is 41 cfs At the downstream end of reach rl the peak discharge is 992 cfs The volume of water lost from the main channel through the culvert is approximately 52 Acre Feet Note the 0 cfs coming from sub 001 for the historic event This worked as planned since we wanted only the runoff from the Input Hydrograph to end up at the split point The 0 5 of rainfall generated no runoff During the 100 year event the 6 5 of rainfall generated 3 712 of runoff from sub 001 There was no Input Hydrograph associated with this event thus the only runoff at the split point was the WinTR 20 generated hydrograph Viewing Hydrographs In order to view the hydrographs within WinTR 20 the hydrograph option for the sub area or reach of interest must be selected for output To make plots of all locations possible set the hydrograph output option for sub areas and reaches to ye
20. 20 Editor 2001 Current File C umdgis mdinterface tr20 tr20in inp DER File View Run Plots Help Alternate Analysis Dimensionless Unit Hydrograph Data Section Name to Enter Data Alternate Analysis Dimensionless Unit Hydrograph Duration Increment Global Output Input Hydrograph Rainfall Distribution Stream Cross Section Stream Reach Storm Analysis Structure Rating Sub Area Time Analysis WinTR 20 Version 1 0 Verification Figure 3 12 Data Section Name to Enter Data Main Window The basic data required for each of the options from the WinTR 20 System Controller Editor for the Data Section Name to Enter Data Main Window Figure 3 12 is as follows Note The data entry windows that allow for entry and or editing of input data contain additional Help in the form of the information about the current window and information about each variable to be entered This Help is available by clicking the window or variable name on the entry window A Help box opens in the lower left corner of the entry window and displays the window or variable name its description and range of values if appropriate Only window and variable names show in yellow have such help available See Figure 3 13 WinTR 20 User Guide 20 Revision Date July 23 2004 Alternate Anaylsis Current File C umdgis mdinterface tr20 tr20in inp DER Delete Current l Alternate Alternate Analysis Window Enter or edit information about chang
21. 38 89 7 1454 187 8 2325 271 5 015 1 37 179 7 300 6 396 3 495 4 584 5 ROL 3278 338 6 587 7 787 8 1000 5 1190 7 DOWNSTREAM 328 3 568 8 765 3 9o 1164 6 WinTR 20 User Guide 95 Revision Date July 23 2004 R02 6 57 452 4 797 0 1090 1 1418 4 1720 3 DOWNSTREAM 451 2 T9377 1085 3 1412 6 1716 3 R03 8 84 608 2 1065 9 1465 3 1929 4 2365 7 DOWNSTREAM 607 5 1064 8 1463 5 1928 3 2362 R04 12 01 756 3 1339 8 1883 5 25225 3095 3 DOWNSTREAM 754 1 1337 5 1881 4 2511 6 3069 2 OUTLE 13 76 847 5 1554 0 21 163 3 2872 1 3486 3 Area or Drainage Peak Flow by Storm Reach Area Alternate 100 yr Identifier sq mi cfs cfs cfs cfs cfs 001 3 73 1439 4 003 1 90 704 0 005 0 94 379 1 007 2 27 990 5 009 0 88 413 8 011 2 29 837 4 013 0 38 322 9 015 T1233 702 9 ROL 3 73 1439 4 DOWNSTREAM 1412 6 R02 6 57 2135 0 DOWNSTREAM 2126 6 R03 8 84 2943 0 DOWNSTREAM 2933 9 R04 12 01 3845 2 DOWNSTREAM BPE LES OUTLE 13 76 4266 2 As mentioned in Example 1 the WinTR 20 Printed Page File is also automatically saved as an out file input file name prefix which can be brought into MS Word Notepad etc for printing or insertion into other project documents It is saved to the same directory as the input file Graphical Output To be able to view hydrographs the output option for the sub area or reach of interest will have to be turned on To simplify for this ex
22. Alternatives option Example 4 Entire Upstream Watershed Model with Divert Hydrograph Peak Information Table Hydrograph Table Peak Flow Summary Table Time Flow Analysis Table Time Elevation Analysis Table ECON2 Flow Frequency Table umonouw s 3 Revision Date July 23 2004 Chapter 5 Chapter 6 APPENDIX A APPENDIX B APPENDIX C APPENDIX D Figure 1 1 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Figure 3 8 Figure 3 9 Figure 3 10 Figure 3 11 Figure 3 12 Figure 3 13 Figure 3 14 Figure 3 15 Figure 3 16 Figure 3 17 Figure 3 18 Figure 3 19 Figure 3 20 Figure 3 21 Figure 3 22 Figure 3 23 Figure 3 24 Figure 3 25 Figure 3 26 Figure 3 27 Figure 3 28 Figure 3 29 Figure 3 30 WinTR 20 User Guide 4 TR 20 Converter HEC RAS Reformatted References Comparison of Old and Present TR 20 Errors Messages TR 20 Model TR 20 Converter HEC RAS Reformatter Warning Messages Figures WinTR 20 System Diagram WinTR 20 Icon for Windows WinTR 20 System Controller Editor Main Window Overview Help Window Screen Help Facilites Window Screen Getting Start Window Screen WinTR 20 System Controller Editor Main Window Button Bar Graphic Output Window WinTR 20 Icon in Windows The WinTR 20 Main Window WinTR 20 File Window WinTR 20 Identifier Window Data Name to Enter Data Main Window Additional HelpWindow Alternate Analys
23. Controller Editor as an existing file The reformatted cross section data then follows WinTR 20 User Guide 134 Revision Date July 23 2004 Appendix A References Computer Program for Project Formulation Hydrology 1964 C E I R Inc January 1964 145 pg TR20 Computer Program for Project Formulation Hydrology SCS May 1965 167 pg revised 1983 294 pg Part 630 Hydrology National Engineering Handbook formerly NEH 4 Numerous authors 1985 2000 Chapters 10 Estimation of Direct Runoff from Storm Rainfall 1985 24 pg 15 Travel Time Time of Concentration and Lag Time 1985 16 pg 16 Hydrographs 1985 26 pg 17 Flood Routing 1985 93 pg TR 20 System Documentation Cronshey 1999 draft Documentation for TR 20 HEC RAS rating reformatter program Merkel 1999 draft TR 20 User Documentation Cronshey 2000 draft Maidment D R ed Handbook of Hydrology McGraw Hill 1993 1422 pages Chow V T Maidment D R and Mays L W Applied Hydrology McGraw Hill 1988 586 pages U S Army Corps of Engineers Hydrologic Engineering Center HEC RAS User s Manual Version 2 0 April 1997 Ponce V M Engineering Hydrology Prentice Hall 1989 640 pages USDA Soil Conservation Service Technical Release 55 Urban Hydrology for Small Watersheds 1986 160 pg USDA NRCS WinTR 55 2000 draft 105 pg WinTR 20 User Guide 135 Revision Date July 23 2004 Appendix B Comparison of Old and
24. File drop down menu select New WinTR 20 File HC Hydrologic Condition HSG Hydrologic Soil Group WinTR 20 User Guide 69 Revision Date July 23 2004 E N WinTR 20 System Controller Editor R F Help l WinT I Open Existing WinTR 20 File ReOpen Last Session Convert old Data Import HEC RAS Local Land Use Local Soil HSG Disclaimer Although the WinTR 20 system software has been tested by its developers NO warranty expressed or implied is made as to the accuracy and functioning of the programs and related program material nor shall the fact of distribution constitute any such warranty and NO responsibility is assumed by the developers in connection therewith Click Here Figure 4 1 This will bring up the WinTR 20 Identifier record Keep the default English Input and Output Units Set the minimum hydrograph value to 1 0 cfs then enter a description for your model Select Accept Changes Close to continue WinTR 20 Identif Current File gt Untitled lt WinTR 20 Identifier Input Units Cade English Metric Output Units Code English f Metric Minimum Hydroaraph value ECA cfs Watershed Description Example 1 Sub area 001 upstream Tributary of Spring Valley Watershed Ho Changes Accept Changes Close Close WinTR 20 User Guide 70 Revision Date July 23 2004 Figure 4 2 WinTR 20 Identifer Window Sub Area Data Entry At this point
25. Present WinTR 20 The data codes number in column two in the old input scheme that defined data types will not exist in the present scheme The various data section names perform their function In the present input scheme data is generally entered in 10 column fields on each data entry line A comparison of old TR 20 commands and present WinTR 20 data sections follows Table B 1 Commands vs Data Sections Old TR 20 Present WinTR 20 Data Section Old TR 20 Present WinTR 20 Data Command Command Section ADDHYD JOB WinTR 20 Identifier ALTER Alternate Analysis LIST Alternate Analysis BASFLO Stream Reach PEAKS COMPUTE Storm Analysis RAINFL Rainfall Distribution DELETE Alternate Analysis REACH Stream Reach DIMHYD Dimensionless Unit Hydrograph READHD Input Hydrograph DIVERT Stream Reach RESVOR Stream Reach DURINC Duration Increment RUNOFF Sub Area ENDATA SAVMOV ENDCMP STRUCT Structure Rating ENDJOB TITLE WinTR 20 Identifier INCREM Global Output XSECTN Stream Cross Section INSERT Alternate Analysis Time Analysis IPEAKS T Lm Verification Features of the old program no longer supported include capabilities associated with IPEAKS and PEAKS the runoff table entered as a rainfall distribution and the Data Check program Data checking is now done within the WinTR 20 model itself Table B 2 shows how each piece of data in the old files is used or is
26. and Reach Default values for both are No Selecting Yes will produce Peak values for all Sub Area and Reaches 6 Select Time Analysis Output Code for Sub Area and Reach Default values for both are No 7 Select Hydrograph File Code for Sub Area and Reach Default values for both are No Selecting Yes will produce Peak values for all Sub Area and Reaches 8 Select Flood Economic File Code for Reach Default value is No If Yes selected then Duration Increment data must be entered 9 Click on Accept Changes Close for the interface to accept the data Global Output Current File C TR20_Beta_Test DataSets alts inp DER Global Output Window Enter or edit data related to hydrograph display in WinTR 20 output along with desired default output codes for sub area and reach data The default output codes are used where sub area or reach Close output codes are left blank in the individual sub area and stream reach data entered elsewhere Accept Changes Close Figure 3 18 Global Output Window WinTR 20 User Guide 25 Revision Date July 23 2004 Input Hydrograph To enter input hydrograph data click on the Input Hydrograph from Main Window Figure 3 6 Once the input hydrograph identifier is selected the Input Hydrograph window will appear as shown in Figure 3 19 your input unit hydrograph editor will come up with a blank window until you have entered the input hydrograph data To generate the input hydrograph fo
27. as part of Storm Analysis Storm Identifier INSERT Variable Converter Usage Data Code Identify record type NSERT Identify record type Operation Code Identify record type From Section ID Used to look for 1 occurrence in previous standard control From Structure ID Used to look for 1 occurrence in previous standard control ALTER Variable Converter Usage Data Code Identify record type ALTER Identify record type Operation Code Identify record type DELETE Variable Converter Usage Data Code Identify record type DELETE Identify record type Operation Code Identify record type WinTR 20 User Guide 129 Revision Date July 23 2004 Running the old data set in Table A 3 through the converter will produce the TR 20 System data file in Table 5 3 Table 5 3 Old TR 20 input data JOB TR 20 T XSECTN ENDTBL STRUCT DTBL NOFF SVOR OY OY O XO CO CO CO OO CO OO OO CO OO CO W XO OO OO OO OO CO CO O NH Fl ti c DATA CREM UT DCMP DJOB o iA E Ed Q H Dd Z YN WinTR 20 User Guide SAMPLE 1 FUL JOB USES 24HR TYPE II WITH FULLPRINT 001 01 1 01 2 01 6 3 001 7 01 001 NORAD 1 00 503 505 506 508 508 509 510 5d Bs 521 523 521 522 522 5225 526 526 526 527 6 1 2 T 921 5 5400 CROSS SECTIO 50 21 74 28 50 51 37 07 44 NOD 4 PKNGBSP KHNOO000 5
28. connection therewith Click Here Figure 3 9 The WinTR 20 Main Window To start a new project Click on File menu on the main WinTR 20 System Controller Editor window and select New WinTR 20 File Figure 3 10 This will bring up the WinTR 20 Identifier window as shown in Figure 3 11 Clicking on the Open Existing WinTR 20 File or ReOpen Last Session menu choices will bring up the WinTR 20 Identifier Window which will contain previously entered data Click on No Changes Close or Accept Changes Close WinTR 20 Editor 2001 Current File gt Untitled lt Help Open Existing WinTR 20 File ReOpen Last Session Convert old Data Import HEC RAS Local Land Use Local Soil H5G T k Data Section Name to Enter Data indicates some data entered for section Alternate Analysis Dimensionless Unit Hydrograph Duration Increment Global Output Input Hydrograph Rainfall Distribution Stream Cross Section Stream Reach Storm Analysis Structure Rating Sub Area Time Analysis WinTR 20 Version 1 0 Verification Save As Exit Figure 3 10 New WinTR 20 File Window WinTR 20 User Guide 18 Revision Date July 23 2004 WinTR 20 Identifier window allows the user to No Changes or Accept Changes the Default Parameters for Input Units Code English or Metric Output Units Code English or Metric and the Minimum Hydrograph Value the default is 0 0 Users are encourag
29. created from HEC RAS output as input Reformatter output consists of a file with WinTR 20 cross section rating tables and an error file with any irregularities identified which would cause WinTR 20 execution problems WinTR 20 User Guide 132 Revision Date July 23 2004 6 3 Data Processing 6 3 1 River Station Identification and WinTR 20 Cross Section Number WinTR 20 accepts alphanumeric cross section names of up to ten characters in length HEC RAS permits a River Station cross section location to be identified by an integer or decimal number up to eight characters in length All cross sections in the HEC RAS output file are included in the TR20 HEC RAS Rating output file The contents of the HEC RAS output file can be selected prior to saving the text file if not all of the HEC RAS river stations or reaches are desired as WinTR 20 rating tables 6 3 2 Bankfull Elevation This elevation is placed on the WinTR 20 cross section header record The assumption made is that Bankfull elevation is the lower of the left overbank elevation LOB Elev and right overbank elevation ROB Elev This is consistent with the definitions in WSP2 and WinTR 20 If Bankfull elevation is higher than the highest water surface profile elevation it is set equal to the highest profile elevation As no information is present for the Low Ground elevation it is left blank in this case WinTR 20 assumes Low Ground elevation is the same as Bankfull elevation Users can add t
30. example description From the main WinTR 20 Controller Editor window select Stream Cross Section and enter the data up to 1 000 cfs The screen appears as shown below Insert 4sc9 jpg here amp Stream Cross Section Current File gt Untitled lt Slope 00011 00011 00026 0068 001128 4001971 1001999 002446 Select Accept Changes Close when all the data has been entered WinTR 20 User Guide 111 Revision Date July 23 2004 The second rating curve describes the hydraulics of the flow out of the channel through the culvert This rating curve will be named culv The only information that the program needs to perform the split flow is stage and discharge However WinTR 20 requires that end area top width and friction slope fields must also be filled in The stage discharge relationship for the culvert is given at the beginning of this example description See the section Notes on Basic WinTR 20 Setup above for details on what to use for the other fields From the main WinTR 20 Controller Editor screen select Stream Cross Section and enter the data for this second rating as shown Insert 4sc10 jpg here Current File C quick user example diverb idivertinp Note that if a single friction slope is to be used for all elevations just one entry at the lowest elevation is required Select Accept Changes Close when all the data has been entered Input Stream Reach Data For mai
31. have a Storm Id of historic We will need to enter a small enough rainfall depth such that no runoff will be generated from Sub Area 001 the user will enter the runoff directly using the Read Hydrograph for this event Use 0 5 The second event the 100 year uses rainfall information given at the beginning at this example description Use 100 yr for a Storm Id for this event From main WinTR 20 Controller Editor select Storm Analysis and enter the data as shown below Insert 4sc13 jpg here Storm Id Rain Gage Id_ Start Rain Rain Table Id 2 Yr 4 historic D 0 5 Typel 2 25 Ho Changes close Select Accept Changes Close to return to the main System Controller Editor page Input Hydrograph Entry Back at the main WinTR 20 System Controller Editor window select Input Hydrograph Once the user is taken to the Input Hydrograph Input screen enter elk ck hyd as an identifier for the input hydrograph Using the pull down menu next the Input Hydrograph Reach Identifier select r1 This designates the Reach that the hydrograph will flow into is designated as r1 Next using the pull down menu next to the Input Hydrograph Storm Identifier window select historic This identifier tells the program which Storm Event to use this hydrograph in Note that the drainage area is set as 0 0 square miles The reason for this is because this particular model contains a Sub Area that has the 4
32. main time increments are not used in the WinTR 20 e Verify Converted Data While the converter attempts to convert as much of the old input data as possible It is the responsibility of the user to verify that the converter data is still representative of the watershed being modeled 2 Output Files There are three output files generated from the WinTR 20 Converter A listing of the error and warning messages can be found from the WinTR 20 User Documentation Appendices D and E a New WinTR 20 file xxx inp b Hrror file xxx err c Debug file xxx dbg WinTR 20 User Guide 66 Revision Date July 23 2004 3 4 Importing HEC RAS Data As mentioned previously the customized table needs to be organized once When the table is saved will be accessible any time HEC RAS is operated To customize the HEC RAS output summary table follow these steps in the order listed 1 After running HEC RAS for a project and plan click the Profile Table icon or click View then Profile Table This will bring up a standard HEC RAS output table It is optional to display various reaches and profiles in this table Select the profiles and reaches for which the TR 20 rating tables are desired 2 Click Options then Define Table 3 Click Clear All Table Headings and then select variables to appear in the table The order of this selection is important because the TR20 HEC RAS Rating program expects the variables in the foll
33. pulldown menu the user could select the plot by Points Lines and Grid See Figure 3 55 File Edit Help fal Copy Zoom In Zoom Out Pointer v Plot Points v Plot Grid Figure 3 55 Edit Plot Options Window 9 Click on X to close and return to Graphics Output Window ini xl File Edit Help Subsres XM Reach Outlet D l Ei Cc H A R G E DRAINAGE AREA sq mi smallgraphics out Figure 3 56 Peak Flow Window To generate the Time Analysis plot do the following steps 1 Graphic Type Click on Time Analysis 2 Select Storm names WinTR 20 User Guide 63 Revision Date July 23 2004 3 Leave Alternate and Sub Area blank 4 Select Reach name Upstream and downstream option button will be visible Select either upstream or downstream 5 Display button is now visible 6 Click on Display button to view Single Reach Time Analysis plot An example of the Single Reach Time Analysis Window shown as in Figure 3 57 7 Plot Time Analysis at the Outlet Click on Outlet 8 Alternate Sub Area and Reach should be blank 9 Display button is now visible 10 Click on Display button to view the Outlet Time Analysis plot An example of the Time Analysis Outlet Window is shown in Figure 3 58 11 Click on X to close and return to Graphics Output Window im Input Output Plots E x File Edit Help Time Analysis Storm test reach2 Upstream 25 0 of Peak 461
34. select Run from the menu along the top The resultant printed page output should appear as Example Problem 4 Split Flow Example Input Hydrograph and 100 year Events Name of printed page file H tr20 work group quick user guide divert out STORM historic Area or Drainage Rain Gage Runoff Peak Flow Reach Area ID or Amount Elevation Time Rate Rate Identifier sq mi Location in ft hr cfs csm sub 001 4 000 0 0 24 00 0 0 0 0 x 4 000 Upstream 2 629 963 95 6 98 677 37 169 34 el 3 960 Downstream 2 399 963 87 7 233 635 17 160 40 dc culv 0 040 Upstream 25 404 963 87 1 33 31 35 933 79 dc culv 0 040 Downstream 25 401 963 87 7 33 374 35 933 79 OUTLET 4 000 2 629 174 33 672 52 168 13 STORM 100 yr Area or Drainage Rain Gage Runoff Peak Flow Reach Area ID or Amount Elevation Time Rate Rate Identifier sq mi Location in ft hr cfs csm sub 001 4 000 Delle 134 79 1032 72 258 18 rl 4 000 Upstream 3 712 964 67 13 79 1032 72 258 18 rl 3 960 Downstream 3 470 964 59 13 79 991 94 250 49 WinTR 20 User Guide 117 Revision Date July 23 2004 dc culv 0 040 Upstream 27 620 964 59 13 79 40 78 1019 57 dc culv 0 040 Downstream 27 613 964 59 18 9 40 78 1019 57 OUTLET 4 000 3 711 13 79 1032 72 258 18 Area or Drainage ue Peak Flow by Storm Reach Area Alternate historic 100 yr Identifier sq mi cfs cfs cfs cfs cfs sub 001 4 00 0 0
35. the table as named will appear in the list of User Tables as an option for viewing output Click User Tables to verify that the table is saved with the assigned name 7 Lastly create an ASCII text file with the selected profiles and reaches in the format shown on the screen To do this click File and Write to Text File Enter the name of the file to be saved such as watershed rating txt then click SAVE to exit This is the file which the TR20 HEC RAS Rating program will use to develop the rating tables WinTR 20 User Guide 67 Revision Date July 23 2004 Chapter 4 Working with Projects Example 1 4 The City of Spring Valley has a flooding problem From a preliminary water surface profile analysis the point of significant flooding occurs when discharges exceed 2 300 cfs The City would like protection from flooding for up to the 100 year event An upstream reservoir has been proposed to reduce the peak discharges The watershed upstream of the city has a total drainage area of 8 806 acres 13 76 square miles For this hydrologic analysis the watershed is broken down into eight 8 sub areas Four 4 reaches are used for connecting the sub areas and channel storage routing See Figure 1 for a plan view of the watershed Three Win TR20 models will be developed to illustrate usage of the program Single Sub Area Model Example 1 This is a model of one of the upstream tributaries This will illustrate the se
36. the time analysis editor will come up with a blank window until data has been entered Note that in order to view the results of Time Analysis the user must click on the Time Analysis doce box for either Sub Area or Stream Reach as appropriate To generate the time analysis data for the model do the following steps 1 WinTR 20 User Guide Enter Maximum Flow Percentage Percent of stream reach peak flow to be used for the time analysis determination Maximum of 4 different percentages may be entered and at least one must be entered Flow percentages will be sorted from lowest to highest for output Enter Elevation Increment Height elevation above base elevation Low Ground Elevation for Stream Cross Section Data or Starting Elevation for Structure Rating Data to be used for elevation time analysis determination Maximum of 4 different elevations may be entered and at least one must be entered Elevation increments will be sorted from lowest to highest for output 42 Revision Date July 23 2004 3 Click on Accept Data then Close for the interface to accept the data Time of Concentratio Current File C TR20_Beta_Test DataSets alts inp TER Delete Tc Fa Details Return to Sub Area Figure 3 33 Time Analysis Window Verification To enter verification data the user clicks on Verification from the Main Window Figure 3 6 Once verification is selected the Verification window will appear as shown in Fig
37. user guid xamples ex2 out STORM 2 yr Area or Drainage Rain Gage Runoff Peak Flow Reach Area ID or Amount Elevation Time Rate Rate Identifier sq mi Location in ft hr cfs csm 001 3 730 1 011 12 03 338 64 90 79 ROL 3 730 Upstream 1 011 1326 65 12 03 338 64 90 79 ROL 3 730 Downstream 1 010 1326 63 13 64 328 32 88 02 003 1 900 0 766 11 75 129 01 67 90 005 0 940 0 675 11 31 60 09 63 92 R02 6 570 Upstream 0 891 1310 82 13 46 452 37 68 85 R02 6 570 Downstream 0 891 1310 82 14 18 451 18 68 67 007 2 270 1 197 11 93 264 13 116 36 R03 8 840 Upstream 0 970 1312 23 14 00 608 17 68 80 R03 8 840 Downstream 0 970 1312 22 14 18 607 49 68 72 009 0 880 0 967 11 33 92 88 105 54 011 2 290 0 814 11 82 163 08 TAZ R04 12 010 Upstream 0 940 1281 71 14 00 756 26 62 97 R04 12 010 Downstream 0 940 1281 70 14 36 754 10 62 79 013 0 380 1 258 10 52 89 74 236 17 015 1 370 1 137 11 27 LEO EL 131 18 OUTLET 13 760 0 968 14 18 847 53 61 59 5 year through 100 year output not shown Quick User Guide Example 2 Entire Spring Valley Watershed Area or Drainage Peak Flow by Storm Reach Area Alternate 2 yr 5 yr 10 yr 25 yr 50 yr Identifier sq mi cfs cfs cfs cfs cfs 001 3313 338 6 587 7 787 8 1000 5 1190 7 003 1 90 129 0 251 2 353 9 466 3 567 3 005 0 94 60 1 126 0 182 5 245 0 301 5 007 2 27 264 1 433 3 565 1 704 3 827 8 009 0 88 92 9 164 8 222 7 285 3 340 1 011 2 29 163 1 308 6 428 7 560 1 677 9 013 0
38. you are returned to main editor window Notice that the WinTR20 Version 1 0 line is now checked A check by any of these lines indicates that data records now exist for that item From this same menu select Sub Area to enter drainage area runoff curve number RCN and time of concentration Tc for a sub area This will bring up a screen that looks like WinTR 20 Editor 2001 Current File gt Untitled lt PIE File Help WinTR 20 Version 1 0 Verification Figure 4 3 WinTR 20 Main Window Let s call this sub area 001 Enter this into the Sub Area Identifier field and hit return The next piece of data needed is the name of the reach that the sub area flows into This will be entered into the Sub Area Reach Identifier field The last outflow point of any Win TR20 model either with a singular sub area or one with many sub areas and reaches is always designated as Outlet Enter Outlet in the Sub Area Reach Identifier field Notice that when the sub area name 001 was entered two new buttons popped up Land Use Details and Tc Details The user has the choice of entering an RCN directly or by using the Land Use Details entering Land Use by Hydrologic Soil Group and letting the program calculate the RCN Tc is similar either enters the value directly or WinTR 20 User Guide 71 Revision Date July 23 2004 by using Tc Details enter flow path information and let the
39. 0Conv fil and contains only the name of the Old TR 20 input file and a blank line If this file does not exist or if the first line in it is blank then TR 20 dat is used as the name of the Old TR 20 input file When running the TR 20 model from the WinTR 20 Controller Editor the TR20Conv fil is automatically generated e Old TR 20 input contains all of the data that is watershed specific for an Old TR 20 analysis Refer to WinTR 20 User Documentation Appendix A for more information on data converted WinTR 20 User Guide 65 Revision Date July 23 2004 2 Data Processing e Converted Data is Incomplete Most of the old TR 20 data will be transferred but some items such as IPEAKS and multiple changes in main time increment do not translate to the new format Entry of routing coefficients x and m in lieu of a reach cross section is no longer acceptable Any reaches in old data sets that used the routing coefficients instead of cross section data will require additional cross section data Each reach in the watershed must refer to a stream cross section rating or structure rating The converter program will generate a top width value for each elevation based on the depth and end area The converter program does not generate a friction slope and lists the friction slope as Missing e Unconverted Items The IPEAKS feature from old TR 20 will not be included in the Win TR 20 Also multiple
40. 100 0 004 CHANNEL 13300 2 0 LAND ARER Row Crop SR Poor LAND BREA Row Crop SR CR Poor LAND ARER Row Crop SR CR Good LAND BRER Row Crop C CR Good LAND BREA Pasture Fair STORH ANALYSIS 2 yr S yr 10 yr 25 yr 50 vr Figure 4 9 Example 1 WinTR 20 Input File To run the model simply select Run from the WinTR 20 System Controller Editor Output Printed Page Following a successful run the WinTR 20 Printed Page File window containing the output will appear For this example the WinTR 20 Printed Page File should appear as follows top part of full output WinTR 20 User Guide 77 Revision Date July 23 2004 File Display Current File C WinTR20 Manuals Data_Examples Example1 out E Example 1 Sub area 001 Upstream Tributary of Spring Valley Watershed Name of printed page file C WinTR20 Hanuals Data Examples Examplei out STORH 2 yr Brea or Drainage Rain Gage Reach Area ID or Elevation Identifier sq mi Location i t Values time increment of 1 000 hr cfs cfs cfs cfs 338 3 260 5 225 1 184 2 121 0 113 7 106 3 98 5 36 2 14 6 Drainage Rain Gage Figure 4 10 Example 1 Printed Page File The first part of WinTR 20 Printed Page File output displays peak discharge information drainage area runoff amount and time of peak for each sub area and reach by storm For this example output for sub area 001 is shown along with the Outlet Sin
41. 20 Identifier window will close leaving the main window Continue by clicking selecting another input section entry window from the list on the main window To save data entered use the Save or Save As selections on the File pull down Remember to save early and save often To CONVERT OLD TR 20 INPUT FILE Select Convert Old Data from the File pull down on the main window Then enter the file name to be converted to start the converter When the converter run is complete either the Error File indicating a problem with converting the data will be displayed or the WinTR 20 Identifier entry window will open for editing the converted data To REFORMAT HEC RAS DATA Select Import HEC RAS from the File pull down on the main window Then enter the HEC RAS output file name to be reformated f a WinTR 20 input file is currently loaded the choice to either add to the current data or start a new file can also be made After the reformating is complete either the Error File will be displayed or the WinTR 20 Identifier entry window will open for editing the file containing the reformatted data To RUN WinTR 20 Load a wWinTR 20 input file using the EDIT CONVERT and or REFORMAT techniques described above Select WinTR 20 from the Run pull down on the main window to run the W inTR 20 model when the run is complete either the Error file or the WinTR 20 output file will be displayed Note The Run pull down is ONLY available if the current data has a file
42. 327 0 526 414 8 345 3 0 0029 1327 943 644 2 364 3 0 0027 1328 2 1379 8324 3 372 6 0 0024 1328 7 1967 1049 383 6 0 0021 LB 4 1311 0 1306 2 0 0 0 0 0040 1307 6 298 TEJ 18 3 0 0042 1308 1 56 28 1 20 6 0 0052 1308 7 95 40 3 2245 0 0068 T1330 237 78 1 2953 0 0051 1317 0 506 L33 2 SD 0 0060 1312 4 622 156 8 38 3 0 0040 1316 4 1886 367 9 93 3 0 0037 131749 2758 STIY T5975 0 0025 1319 35 3934 860 199 8 0 0020 LL 31 TAB 15 7 1276 0 0 0 0 0 00047 1278 9 50 533 40 0 00047 1279 5 100 84 554 0 00051 1280 4 250 141 78 0 00065 1281 1 500 218 1295 0 00090 1281 7 5r 292 160 0 00108 1282 0 1000 3 554 166 0 00111 1282 7 1500 465 15 75 0 00103 1283 3 2000 575 186 0 00088 1283 9 2500 695 196 0 00074 1284 6 3000 825 207 0 00062 1285 2 3500 970 2923 0 00054 LOCAL LAND USE GLOBAL OUTPUT WinTR 20 User Guide 94 Revision Date July 23 2004 Al 1 0 1 0 YYNNN YNNNNN To run the model simply select Run from the WinTR 20 System Controller Editor window Output Printed Page Following a successful run the WinTR 20 Printed Page File window containing the output will appear For this example the WinTR 20 Printed Page File should contain the following information for this run only the 2 year and peak discharge summary table at the end are shown here Quick User Guide Example 2 Entire Spring Valley Watershed Name of printed page file H Nwintr20 data sets quick
43. 6 60 1071 0 80 00 527 20 1265 0 95 00 Global Output 0 100 The word Missing is placed in the data field for the friction slope value which is required for the Muskingum Cunge reach routing method If the friction slope does not change in the rating only one entry on the first line is needed WinTR 20 User Guide 131 Revision Date July 23 2004 Chapter 6 HEC RAS Reformatter 6 1 Description The Corps of Engineer s HEC RAS water surface profile program is used by many NRCS engineers in lieu of the older and now obsolete WSP2 Water Surface Profile program NEH Part 630 Chapter 31 1994 One of the reasons for computing water surface profiles is to develop cross section rating tables used in the TR 20 model for the flood routing of stream reaches The WSP2 program developed these tables as an output option However HEC RAS does not automatically develop these tables in the correct format for WinTR 20 For this reason a reformatter program TR20_HECRAS_Rating exe has been developed that takes a HEC RAS output file and develops rating tables formatted for input to WinTR 20 Merkel 1999 The TR20_HEC RAS_Rating program is a stand alone Fortran90 batch process program HEC RAS has many optional output variables and allows for the development of customized tables with certain desired information Such customized tables once created and saved can be accessible whenever HEC RAS is run on the various projects and plans Appendix
44. Base Flow z Split How Reach Identifier csm Split Flow Cross Section Ideritifier Starting Split Flow Ending Split Flovs Split Flow Orainage Area No Changes Close Figure 4 28 WinTR 20 User Guide 100 Accept Changes Close Revision Date July 23 2004 Select Accept Changes Close for both the Stream Reach window and Alternate Analysis window to return to the WinTR 20 Editor Controller window This is a good time to save your data Click on WinTR 20 Version 1 0 and then add a new description to this model Click SaveAs this data file as ex 3 inp Enter Structure Data Select Structure Rating from the WinTR 20 Editor Controller window Enter Str into the Structure Identifier name box Leave the Structure Starting Elevation field blank The program will assume the starting elevation is the base flow discharge elevation As with the cross section data the three elements per line elevation discharge and storage are entered in the three boxes in the middle of the screen Pressing return after filling in the three points enters those values into the table on the right Enter all the data and select Accept Changes Close to bring you back to the WinTR 20 Editor Controller window The screen capture shown below shows the completed Structure Rating input screen Structure Rating Current File C WinTR20ManualsWata Ex B Display Data Ho Changes Accept Changes Clos
45. C TR20_Beta_TestWataSets 1 inp EBS SAMPLE 1 JOB USES 24HR TYPE Il STORM FROM STR 1 TO XSEC 1 WITH FULLPRINT CROSS SECTION DATA amp OUTPUT OPTIONS ON Ho Changes Accept Changes Close Close Figure 5 4 Converted input file WinTR 20 Identifier window WinTR 20 User Guide 122 Revision Date July 23 2004 Stream Cross Section Current File C TR20_Beta_Test DataSets A1 inp aR Cross Section Friction A Slope ET 0 0 0 0 Missing 57 25 36 83 118 20 42398 189 25 48 52 200 00 69 23 364 35 262 39 662 99 392 74 963 82 449 83 1134 18 471 05 Elevation Discharge End Area Top Width CE por Display Data No Changes Accept Changes Close Close Figure 5 5 Converted input file missing friction slope data in reach The user can now edit the file as necessary prior to running it in the WinTR 20 program For instance in the screen above the friction slope is missing from the stream cross section data and needs to be added to the data before WinTR 20 will run successfully 5 2 Converted Data is Incomplete Most old data will be transferred but some items such as IPEAKS and multiple changes in main time increment do not translate to the new format Entry of routing coefficients x and m in lieu of reach cross section rating data is no longer acceptable Each reach in the watershed must refer to a stream cross section rating or structure rating Also the new input requires t
46. Data Section Header XXX Entries Input Field Name and Another Input Field Name cannot both be blank for Identifier Name Identifier of Data Section Data Section Header XXX Hi CXXX for Input Field Name not greater than Another Input Field Name X XXX for Name Identifier of Data Section Data Section Header XXX Eni dapur eared when_Another Input is entered for Identifier Name Identifier of Data Section Data Section Header Extraneous data in columns XXX XXX for Identifier Name Identifier of Data Section Data Section First or Last point of Data Type must be 0 0 for Identifier Name Identifier of Data Section Data Ori ricade AAA Identifier Input for Input Field Name used with Data Type Data Type Value not found Imbedded blank s s in Input for Input Field Name and Identifier Name Identifier of Data Section Da ection Header XXX imbedded sign s or in Input for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Input Field Name Input must not decrease for Identifier Name Identifier of Data Section Data ection Header Input Field Name X XXX must be increasing for Identifier Name Identifier of Data Section Data Ori cade AAA Input Field Name Elevation X XXX must be within structure or cross section elevation range X XXX X XXX for Structure or Cross section Identifier Identifier Value Input for Identifier Identifier Value must include Input Field Name s or Data Section Sub h
47. Date July 23 2004 E x p a 3 o o w ci L e Et o je AN E e Input Hydrograph Current File Display Data Accept Changes Ho Changes Close Input Hydrograph Window 3 19 igure F w Input Output Plots 5j X File Edit Help raph new Input Hydro i D D e 1 1 1 1 e 1 1 1 D r 1 1 1 1 I 1 1 1 1 1 i 1 oa N a oorzaceou TIME hr Display Data Input Hydrograph Figure 3 20 Revision Date July 23 2004 27 WinTR 20 User Guide Rainfall Distribution Rainfall distribution can be either an actual storm or dimensionless synthetic storm To enter rainfall distribution data click on Rainfall Distribution from the Main Window Figure 3 6 Once the rainfall distribution is selected the Rainfall Distribution window will appear as shown in Figure 3 21 your rainfall distribution editor will come up with a blank window until you have entered the rainfall distribution data To generate the rainfall distribution for the model do the following steps 1 7 WinTR 20 User Guide Enter Rain Table Identifier Unique alphanumeric string identifying the Rain Table Be sure that the identifier name is different from any of the built in standard rainfall table identifiers see table 3 1 below Hit Enter Enter Rain Table Time Increment Uniform time increment between rain ta
48. Draft WinTR 20 User Guide Revision Date July 23 2004 WinTR 20 User Guide 1 Revision Date July 23 2004 Preface The WinTR 20 Computer Program for Project Formulation Hydrology version 1 00 has been revised to operate with Windows Interface This user guide will assist the new or occasional users prepare and run the program This version of WinTR 20 is improved over the old version of TR 20 February 1992 version with the following features Inclusion of Windows interface Updated computational coding Muskingum Cunge reach routing for channel reaches Transforms old TR 20 input data to new WinTR 20 format HEC RAS Reformatter that transforms HEC RAS output profile data to WinTR 20 stream cross section data Please report any problems you find to the WinTR 20 development team at tr20team wec nrcs usda gov or the hydraulic engineer in your state Acknowledgments One of the great pleasures of wrinting this User Guide is acknowleding the efforts of many people whose names may not appear on this cover but whose hard work cooperation friendship and understanding were crucial to the production of this User Guide Helen F Moody NRCS Beltsville MD Quan D Quan NRCS Beltsville MD William Merkel NRCS Beltsville MD Pete Cooper NRCS Minneapolis MN John Chua NRCS Phoenix AZ Tom Perkins NRCS Portland OR Dan Moore NRCS Portland OR Kenneth Aycock NRCS Auburne AL Thom Garday NRCS Little Rock AR Jon Werner NRCS Washi
49. G of User Documentation discusses in detail how to organize a HEC RAS output table for use in the reformatter The reformatter was written based on output from HEC RAS version 3 12 As future releases of HEC RAS and WinTR 20 are distributed the reformatter will be tested and revised as needed to be compatible with both the newer HEC RAS versions and the WinTR 20 model 6 2 Input Running the TR20 HEC RAS Rating program The TR20_HEC RAS_Rating program may be run from Windows Explorer other file managers or from the WinTR 20 Controller Editor To run it from the Controller Editor click the File menu on the Main window and then click Import HEC RAS in the pull down menu The program then prompts the user for the input file name The program will look for a file named Rating_Table fil to retrieve the input and output file names This is a user or Controller Editor created file with the input file name HEC RAS output table entered on the first record followed by a blank line Any program generated error files will be named the same as the input file name except that the extension err is substituted and the WinTR 20 input cross sections file will have an inp extension If the Rating Table fil file is not present or its first line is blank a default name HECRAS out is used for the input file The other file names will then be HECRAS err for the error file and HECRAS inp for the WinTR 20 cross sections The reformatter reads the file
50. Good 65 75 82 Return to Sub Area Figure 4 5 Land Use Areas Window Select the Return to Sub Area button From the main sub area window select the Tc Details button Enter the Tc details given in the problem description After the data has been entered you should see a window similar to what is shown below gt Since Sheet Flow is a function of the 2 year precipitation amount the time for this component of the Tc will not show up until that precipitation amount is entered within the Storm Analysis input window WinTR 20 User Guide 73 Revision Date July 23 2004 Time of Concentratio Current File gt Untitled Delete Tc Details o Mos B Jo cunvates gt sores 7 EJ ga a mm E E Return to Sub Area Figure 4 6 Time of Concentration Window Note that when you return to the main sub area menu the entry windows for drainage area RCN and Tc do not appear When data are entered using the detail method these windows disappear Note also the output options available Any output option selected here would apply only to that sub area To apply the same output options to all sub areas and reaches Global Output would be used This will be covered later Select the Accept Changes Close button to return to the main Controller Editor window Storm Analysis Entry Next we need to enter the rainfall amounts distribution and antecedent runoff condition From the WinTR 20 System Controller Edi
51. Ho Changes Accept Changes Close Close Figure 4 18 WinTR 20 User Guide 86 Revision Date July 23 2004 Sub Area Current File C WinTR20 Manuals Data_Examples Example2 inp Sie a Sub Area Ho Changes Accept Changes Close Close Figure 4 19 Reach Entry Next we ll fill out the reach information From the main WinTR 20 System Controller Editor window select Stream Reach Within the stream reach window the following information will be provided for each reach e The name of the downstream reach that receives this reach s flow If this is a channel routing reach what is the name of the cross section rating curve associated with this reach and what are the channel and floodplain distances e If this is a structure routing reach what is the name of structure rating curve associated with this reach e Base flow if any to add to this reach s hydrograph The split flow options shown to the right are only used when the model includes diverting flows out of a reach For this example the split flow fields will be left blank If you had entered reach names during the sub area entry above all these names should appear in the drop down menu next to the Stream Reach Identifier window Use this to highlight the reach you want to enter data for Below is a table containing basic reach information for this example If you had decided to enter all your reach information before sub area entry th
52. Identify record type RAINFL Identify record type Rainfall Table Part of new Rainfall Distribution Rain Table Identifier Runoff Option NOT USED New Rainfall Distribution Mass Rainfall Points WinTR 20 User Guide 137 Revision Date July 23 2004 READHD RUNOFF RESVOR WinTR 20 User Guide Converter Usage torage Location tarting Time inage Area Variable Data Code Identify record type Converter Usage tructure Id Time of Concentration V Display Code ILE Display Code UM Display Code Variable nly es lac zo vao nw ZEIZ E gg CISA Is Aad Slete Z g z s8 3 ol lt lo EIFE e amp IO9oE PAA ale lie lele gj H5 iz SENS 5 je HIE 515 Bla amp IEIE lt s S e MIS IK G o 5 2 lt C los Male Zi ale e o els is ajo j 3 s 7 3 9 g o Bla e elc 29 o PIS Identify record type Converter Usage Data Code RESVOR Operation Code tructure Id nput Hydrograph Locati Output Hydrograph Location Start Routing Elevation V Display Code HYD Display Code ELEV Display Code ILE Display Code UM Display Code Identify record type on New Structure Rating If more than one structure starting elevation is specified for a structure a new structure rating is required 138 Revision Date July 23 2004 REACH Variable Converter Usage Data Code Identify record type Input Hydrograph Location Output Hydrograph Locat
53. July 23 2004 w WinTR 20 Editor 2001 Current File C XQuanMa SVA 28 cn50 inp AOR View Run Plots Help New WinTR 20 File Open Existing WinTR 20 File ReOpen Last Session Convert old Data Import HEC RAS Local Land Use Local Soil HSG Save Figure 3 35 Save or Save As Window Data will be saved into a file the user then clicks Yes button to save See Figure 3 36 below WinTR 20 System 3 Save C Quan la SiI4_25_cn50 inp No Figure 3 36 Data Saved in File Window Performing WinTR 20 Calculation Once all the data are entered and the file is saved the user can perform the WinTR 20 calculations by clicking on Run from the main window menu bar An example of the Run Perform WinTR 20 Calculation window is show in Figure 3 37 WinTR 20 User Guide 49 Revision Date July 23 2004 w WinTR 20 Editor 2001 Current File C Quan la SlA_2S_cn50 inp File View Run Plots Help Perform WinTR 20 calculation Figure 3 37 Run Perform WinTR 20 Calculation After WinTR 20 has finished the calculations WinTR 20 will generate the WinTR 20 Printed Page File as shown in Figure 3 38 If the data has errors the error File is shown in Figure 3 40 Under the WinTR 20 Printed Page File window are the following options Print Send the WinTR 20 Printed Page File to the printer View The view menu currently includes WinTR 20 Input File See Figure 3 39 WinTR 20 Printed Page File See Fig
54. Location Output Hydrograph Location HYD Display Code ELEV Display Code DUR Display Code 127 Revision Date July 23 2004 SAVMOV Converter Usage Identify record type Identify record type Identify record type ection Id NOT USED tructure Id NOT USED nput Hydrograph Location Used to identify downstream reach identifier for reach upstream Output Hydrograph Location Used to identify receiving reach DIVERT Variable Converter Usage Data Code Identify record type Output Hydrograph Location Used to identify receiving reach PROCEDURE 1 Cross Section Id NOT USED PROCEDURE 2 Blank Used to determine which procedure is used New Stream Reach Split Flow Drainage Area P V Display Code NOT USED BASFLO Variable Converter Usage Data Code Identify record type BASFLO Operation Code Identify record type PROCEDURE 1 Blank NOT USED PROCEDURE 2 Triangular Peak Time NOT USED INCREM Variable Converter Usage Data Code Identify record type INCREM Identify record type Operation Code Identify record type New Global Output Data Hydrograph Display Time Increment Can only use one if multiple Main Time Increments in job smallest is used WinTR 20 User Guide 128 Revision Date July 23 2004 COMPUT Converter Usage Identify record type rom Section ID rom Structure ID tart Time Alternate Number Variable Data Code Alternate Number torm Number Used
55. WinTR 20 Watershed Schematic Sele File Edit View DRS ier hk Figure 4 24 Example 2 Schematic Verify that the sub areas and reaches logically represent the hydrologic routing of the watershed The input file for this particular example is viewable by selecting View then Input File from the pulldown menu and is shown below WinTR 20 Version 1 0 0 0 T0 0 Example 1 Sub area 001 Upstream Tributary of Spring Valley Watershed SUB AREA 001 R01 SHEET 100 0 04 D SHALLOW 3100 0 004 U CHANNEL 13300 245 WinTR 20 User Guide 93 Revision Date July 23 2004 LAND AREA Row Crop SR Poor B 0 48 LAND AREA Row Crop SR CR Poor B 1 27 LAND AREA Row Crop SR CR Good B 1 27 LAND AREA Row Crop C CR Good B 0 34 LAND AREA Pasture Fair B Os 3 003 R02 1 90 TZ 2 30 005 R02 0 94 70 1 77 007 R03 2 25 80 2 76 009 R04 0 88 76 1 99 011 R04 229 Eis 2450 013 Outlet 0 38 81 0 98 015 Outlet 1 37 79 21403 STREAM REACH ROL R02 DF 6 6870 5350 RO2 R03 LB 4 12130 10560 R03 R04 LB 4 4220 3970 RO4 Outlet LL 31 4260 3800 STORM ANALYSIS 2 yr 0 0 2 93 Type I 2 2493 52oyr 0 0 Sind Type I 2 10 yr 0 0 4 38 Type I 2 25 yr 0 0 5 00 Type I 2 50 yr 0 0 55 53 Type I 2 100 yr 0 40 6 22 Type I 2 STREAM CROSS SECTION DF 6 1326 6 1321 7 Ow 0 0 0 002 1323 7 28 LS 8 9 0 0022 1324 4 48 23 4 22 7 0 0023 T3256 118 68 6 82 1 0 003 1326 6 311 260 5 278 3 0 0035 1
56. ak Output Code e Yes No fe Yes No Default Hydrograph Output Code Wes re No Yes e No Default Time Analysis Output Code C Yes le No Yes Te No Default Hydroaraph File Code Yes No Nes m No Default Flood Economies File Code Yes re No Ho Changes Close Accept Changes Close _ Figure 4 8 Global Output Window Select Accept Changes Close to return to the WinTR 20 System Controller Editor window Viewing Schematic Input Running the Model Before the user can run the model the input file must be saved Select File and Save As from the WinTR 20 System Controller Editor window Give the file an identifiable name and place it in the desired directory Once the file is saved the View and Run options appear at the top of the Controller Editor window View allows the user to look at the watershed schematic and the input file in an ASCI format A schematic view is applicable only to watersheds with more than one sub area so this option does not apply to this example see Example 2 for an example of a schematic plot The input file for this particular example is viewable and is shown below WinTR 20 User Guide 76 Revision Date July 23 2004 File Display Current File C WinTR20 Manuals Data_Examples Example1 inp TE WainTR 20 Version 1 0 0 Example 1 Sub area 001 Upstream Tributary of Spring Valley Watershed SUB AREA 001 Outlet SHEET ioo 0 04 SHALLOW 3
57. ample on the WinTR 20 System Controller Editor window select Global Output and set the Default Hydrograph Output Code to Yes for sub area and reach This will create hydrographs for all reaches and sub areas Save the file then re run it After closing the WinTR 20 Printed Page File window select Plots from the WinTR 20 System Controller Editor window menu Graphic Output can plot one location and one storm per plot or multiple locations and storms at once How to view a single plot or multiple storms was described in Example 1 For Example 2 we ll look at multiple locations In the Graphics Output window select Location from Multiple Hydrographs Next to Storms select 100 year from the drop down menu Next to Sub area box select and then hit enter for both sub areas 001 and 009 These locations should now show up in the Multiple Locations window in the lower right Selecting Display will bring up a screen that looks like WinTR 20 User Guide 96 Revision Date July 23 2004 Input Output Plots File Edit Help D l S C H A R G E 18 20 22 24 26 28 30 TIME hr Figure 4 25 Plotting multiple locations can also be used to graphically show the impacts of structure or reach routings Close the current display to return to the Graphics Output window Select each of the 001 and 009 within the Multiple Location window to delete them Next
58. ank conversion is No WinTR 20 Run Echo of input data after read in and data Yes Blank Identifier Read conversion is No Verification Read Echo of input data after read in and data Yes Blank conversion is No Storms and Rain Gage Output gives Storm ID Rain Gage ID 2 yr Yes Blank Combinations 24hr Rain if given Rain starting time Rain is No amount ARC and Rain Table ID Sub Area Tc Output gives Sub Area Flow Type 2 yr Rain Yes Blank Computations Length Slope Manning n Surface Code is No Hydraulic Radius and Time Sub Area CN Output gives Sub Area Sub Area Identifier Yes Blank Computations Land Use Area Identifier Hydrologic Soil is No Group HSG Curve Number Land Use Area and the CN x Area Product Unique Sub Area List Output gives the number of Sub Areas read Yes Blank from Sub Area Data the number of Sub Areas is No added from Alternate Data and lists the added Sub Area Identifiers Cross Section Rating Output gives the discharge end area and Yes Blank Table rating exponent M for cross sections is No WinTR 20 User Guide 45 Revision Date July 23 2004 Table 3 2 con t Pre Processing Verification Section Output in Debug File Check Boxes Array Indexes Reference Identifiers Output gives Sub Area Identifier Reach Identifier Reach Index Rain Gage Identifier and Rain Gage Index for Sub Area The Reach Identifier Receiving Reach Identifier and Index Cross S
59. ata entered here will be used in lieu of the standard dimensionless unit hydrograph Note If the SCS standard dimensionless unit hydrograph is desired then no data should be entered on this window To generate the dimensionless unit hydrograph for the model do the following steps 1 Enter the Dimensionless Unit Hydrograph the first point for the dimensionless unit hydrograph starts with zero and the last point should also be zero Maximum point values should be 1 0 Note Click grid cell to edit previously entered data Right click to insert or delete a value 2 Display Data button becomes visible when data has been entered see figure3 15 3 Click on Display Data button to view the dimensionless unit hydrogaph plot An example of the Dimensionless Unit Hydrograph window is shown in Figure 3 16 4 Also the user could delete the current dimensionless unit hydrograph by clicking on Delete DimHyd WinTR 20 User Guide 22 Revision Date July 23 2004 5 Click on Accept Changes Close button when done for the interface to accept the data Unit Hydrograph Current File C TR20_Beta_Test DataSets alts inp Dimensionless Unit Hydrograph Window Enter or edit information for a dimensionless unit hydrograph to use in WinTR 20 for hydrograph generation If the SCS standard dimensionless unit hydrograph is desired then no data should be entered on this window Any data entered here will be used in lieu of the standard dimensionless
60. ble points hour Hit Enter Enter Mass Rainfall Points First point must be zero and subsequent points must be equal or increase No blank fields are allowed within the rain table sequence Rainfall points are considered dimensionless There are several rainfall distributions built in the program for users to select from see Table 3 1 Rainfall Distribution Built in Tables below These standardized rainfall distributions should not be entered here Table 3 1 Rainfall Distribution Built in Tables Built in Rainfall Identifier Description Type I NRCS Type I 24 hour storm Type IA NRCS Type IA 24 hour storm Type II NRCS Type II 24 hour storm Type III NRCS Type III 24 hour storm Type I 48 NRCS Type I 48 24 hour storm Type II 48 NRCS Type II 48 24 hour storm Type NM60 New Mexico Type IIA 60 24 hour storm Type NM65 New Mexico Type IIA 65 24 hour storm Type NM70 New Mexico Type IIA 70 24 hour storm Type NM75 New Mexico Type IIA 75 24 hour storm Display Data button should be visible Click on Display Data button to view the rainfall distribution plot An example of the Rainfall Distribution window is shown in Figure 3 22 Also the user can delete the current rainfall distribution by clicking on Delete Distribution button then repeating steps one through five as desired to enter a new rainfall distribution Click on Accept Changes Cl
61. ccuracy and functioning of the progFams and related program material nor shall the fact of distribution constifute any such warranty and NO responsibility is assumed by the developers in connection therewith Disclaimer New User Overview Statement Click Here Help Facilities Getting Started Figure 3 2 The WinTR 20 System Controller Editor Main Window Clicking on the New User Click Here button or the Help button in the menu bar will make the Overviews Help Facilities and Getting Started Help Windows Figure 3 3 3 5 available w Overviews Help Overview The WinTR 20 System Controller E ditor allows running any of the system componets WinTR 20 model input converter and HEC RAS reformatter as well as editing a WinTR 20 input file The Controller E ditor is organized following the input sections described in the user documentation For editing each WinTR 20 input section has its own entry window which is accessible by clicking the input section name on the main window In addition to the input section entry windows there are entry windows for locally added land use identifiers w runoff curve numbers by hydrologic soil group and locally added soils w applicable hydrologic soil groups Entry windows for these two local additions are accessible from the File pull down on the main window Figure 3 3 Overview Help Screen WinTR 20 User Guide 13 Revision Date July 23 2004 BR Help Facilities Help
62. ce this particular model only has one sub area without any reaches the results for these two locations will be same sub area 001 peak outlet Scrolling down this Printed Page to the bottom shows the summary table which lists only peak discharge by storm WinTR 20 User Guide 78 Revision Date July 23 2004 File Display Current File C WinTR20 Manuals Data_Examples Example1 out Sele WinTR 20 Version 1 0 Page 4 12 01 2003 10 32 Example 1 Sub area 001 Upstream Tributary of Spring Valley Watershed Area or Drainage Peak Flow by Storm Reach Area Alternate S yr 10 yr Identifier sq mi cfs cfs 3 73 e 587 7 787 8 1000 5 1190 7 3 73 d 587 7 787 8 1000 5 1190 7 Drainage Peak Flow by Storm Area Alternate sq mi cfs efs 3 75 Figure 4 11 Example 1 Outlet The WinTR 20 Printed Page File is also automatically saved as a out file input file name prefix which can be brought into MS Word Notepad etc for printing or insertion into other project documents It is saved to the same directory as the input file Hydrograph Plots To view a hydrograph plot at a particular location the hydrograph output code for that location must be set to Yes This can be set at a specific location within the specific sub area or reach input window or set globally for the whole watershed The user should be aware that wherever this option is set a tabular hydrograph will be included in the WinTR 20 Printed Pag
63. cfs 50 0 of Peak 943 cfs 80 0 of Peak 1320 cfs 2 0 ft Stage 1322 cfs D s Cc H A R G E TIM E hr localsoil out Figure 3 57 Single Reach Time Analysis Window WinTR 20 User Guide 64 Revision Date July 23 2004 im Input Output Plots E E _ 5 x File Edit Help Time Analysis Storm 1 D s Cc H A R G E TIME hr FALLRIVER2 out Figure 3 58 Outlet Time Analysis Window 3 3 Converting Old TR 20 Data An important feature of present the WinTR 20 is the ability to convert old TR 20 data DOS into the current WinTR 20 format The converter program is a Fortran90 batch process and uses the TR 20 input specifications Appendix C TR 20 User Documentation as the basis for input conversions Refer to Appendix B for more information on how each data item from an old input data set is converted Before converting the old TR 20 data into the WinTR 20 format there are several things that you should be aware of First the Input Files that are used by TR 20 convert Secondly not all of the old TR 20 data will be transferred to the WinTR 20 format Thirdly is the output files generated from the TR 20 Converter 1 Input Files There are one or two input files that are used by the TR 20 Converter Old TR 20 input filename and the Old TR 20 input e Old TR 20 input filename is optional and allows the entry of a filename for the Old TR 20 input file The Old TR 20 Input Filename is TR2
64. d or edif a Sub Area Items changed with this Alternate or Reach for current alfernafe RIGHT click a Sub Area or S b Ar Reach fo delefe ub Areas Reaches LI Ho Changes Close Accept Changes Close Figure 4 27 In this window underneath the text Items changed with this Alternate are two boxes labeled Sub Areas and Reaches In order to change reach R02 to a structure click in the Reaches box This will bring up the main Stream Reach window Using the drop down menu next to Stream Reach Identifier select RO2 Fill this screen out as though you were just entering it for the first time the data within R02 from the original analysis does not carry over to the alternative thus the receiving reach must be entered here also Enter R03 for the downstream receiving reach and Str in the reach structure identifier box This screen should now look like Stream Reach Current File C WinTR20 Wanuals Wata_Examples ex 3 inp Stream Reach Delete Reach Stream Reach Identifier R02 hd Stream Receiving Reach Identifier ROS Reach Peak Dutput Code Reach Cross Section Identifier v Reach Structure Identifier Str E Reach Channel Length H Reach Hydrograph Output Code Reach Time Analysis Code Reach Hydrograph File Code Reach Flood Economics File Cade Yes Yes No No Blank ie Blank Blank e Blank Blank Reach Valley Length H Constant
65. d storage discharge combination XXX XX exceeds highest structure working curve value XXX XX while storage routing reach Reach Identifier Storm Storm Identifier Runoff curve numbers XX X for Curve Number Identifier Identifier Value are the same for all hydrologic soil groups Structure starting elevation raised to baseflow discharge elevation for reach Heach Identifier Value X XXX converted from X XXX is greater than the usual maximum X XXX for Input Field Name on record XXX of Data Section Header Value X XXX converted from X XXX i is less than the usual minimum X XXX for Input Field X XXX is greater than the usual maximum X XXX for Input Field Name on record XXX Data Section Header Value X XXX is less than the usual minimum X XXX for Input Field Name on record XXX of Data Section Header Value XXX is greater than the usual maximum XXX for Input Field Name on record XXX of Data Section Header Value XXX is less than the usual minimum XXX for Input Field Name on record XXX of Data Section Header WinTR 20 User Guide 145 Revision Date July 23 2004
66. diked main reach will be named dc culv As mentioned earlier this is simply a short 10 feet long reach to provide a receiving reach for the flow coming from the culvert The information required for this reach includes e The stream reach identifier dc culv e The reach name that will be receiving the flow from reach dc culv outlet e The cross section identifier name containing the rating curve for reach dc culv xsec 10 e Reach lengths for the reach routing that will occur within that reach 2 10 feet See the screen below for how data Reach dc culv should appear in the Stream Reach screen The drainage area fraction will have no effect on the actual routings It is used to convert runoff volumes into the units of watershed inches for export to printed page output WinTR 20 User Guide 113 Revision Date July 23 2004 Insert 4sc12 jpg here i Stream Reach Current File C quick user example di S ream Reach Delete Reach Shean f rinddentitien de culy xj Seam Reserwing eh aa eh owe Rasen Pesto Cutt fede es No T Blank Gasah Cross San RssuhiHueenarsprn intet Goce C es No T Blank liara ov rl MOERORE EUEN m jesh The arahe D6ds Wes T No f Blank essed Eher org IM fresa Huendrapr Fire bade es No m Blank Kevin SONT Razh Hand Esonotiic His das Yes No Te Bank i Bonasi Bess Aaw Ec i F Split Feoy Sess dear Sr I 4 Split Fev Brees Section Ident
67. dow Button Bar WinTR 20 User Guide 15 Revision Date July 23 2004 Clicking on Plots on the menu bar of the main window brings the Graphic Output window to the screen The user must then select Graphic Type or Multiple Hydrographs Graphic Types includes Hydrograph Peak Flow and Time Analysis Default on Hydrograph Multiple Hydrographs choices include None Storm Alternate and Location the Default is None Graphics Output Current File C umdgis mdinterface tr 20 tr 20in inp fel Figure 3 7 Graphic Output Window The WinTR 20 System Controller Editor Main Window Button Bar Figure 3 6 has the following options File This set up for file management Options available under the File menu includes New WinTR 20 File Open Existing WinTR 20 File ReOpen Last Session Covert old Data Import HEC RAS Local Land Use Local Soil HSG Save Save As and Exit View The view menu currently includes Schematic Input File Printed Page File Error File Debug File Hydrograph File and FloodEcon File Run This option is used to perform the WinTR 20 calculations Plots The plots menu currently includes Graphical Type Hydrograph Peak Flow and Time Analysis and Multiple Hydrographs None Storm Alternate and Location Help This allows the user to get a display showing help information about the WinTR 20 System Help files available under the Help menu includes WinTR 20 System Diagram Overview Help Facilities Getti
68. e Close Figure 4 29 WinTR 20 User Guide 101 Revision Date July 23 2004 Schematic Viewing Input and Running the Program Select File then Save to get the View and Run buttons to appear With this version of the program when you view the schematic it shows you the original data i e the whole watershed without the reservoir Future versions of the program will have the ability to view the schematics of alternatives When the model is run with alternate analysis present the original model is run first followed by the alternative model Output both graphical and tabular will include results from both View the input data by going to View then Input File Note the data that appears under the Alternate Analysis line File Display Current File C WinTR20 WManuals Wata_Examples ex 3 inp E WinTR 20 Version 1 0 0 0 Quick User Guide Example 3 Entire Spring Valley Watershed reservoir as alternative SUB AREA 001 Rot SHEET 100 0 04 SHALLOW 3100 0 004 CHANNEL 13300 2 LEND EREA Row Crop SR Poor LAND BRER Row Crop SR CR Poor LAND ARER Row Crop SR CR Good LAND BRER Row Crop C CR Good LAND BRER Pasture Fair R02 1 90 22 R02 94 70 R03 27 80 R04 88 76 R04 25 Outlet i Outlet b 79 Figure 4 30 After the original data set is run the program then substitutes lines shown here for the original R02 line The model is automaticall
69. e File also This can produce voluminous output on the WinTR 20 Printed Page File especially if the Global Output option is used For this example go back into the Global Output window and set the hydrograph output code for sub areas to Yes and then select the Accept Changes Close button to return to the WinTR 20 System Controller Editor window Notice that the Run option on the main menu bar is not shown Since a change to the file was made Global Output hydrograph now requested the new input must be saved before the Run option appears Select File then Save from WinTR 20 System Controller Editor window and then Run After the model runs note that the WinTR 20 Printed Page File now contains a tabular hydrograph in between each storm WinTR 20 User Guide 79 Revision Date July 23 2004 File Display Current File C WinTR20 Manuals Data_Examples Example1 out BE Example 1 Sub area 001 Upstream Tributary of Spring Valley Watershed Name of printed page file C WinTR20 Hanuals Data Examples Examplei out STORH 2 yr Area or Reach Identifier Drainage Area sq mi Rain Gage ID or Location Elevation t Values time increment of 1 000 hr cfs cfs 338 3 121 0 36 2 260 5 113 7 14 6 Drainage Rain Gage cfs cfs 225 1 106 3 184 2 98 5 Figure 4 12 Examplel Printed Page File After closing the Win TR 20 Printed Page File wind
70. e names will not automatically appear in this drop down menu and you will have to enter the names directly into the reach identifier window WinTR 20 User Guide 87 Revision Date July 23 2004 Stream Reach Stream Stream Cross Reach Reach Identifier Receiving Section Rating Channel Valley Reach Name Length Length Identifier ft ft ROI R02 DF 6 6 870 5 350 R02 R03 LB 4 12 130 10 560 R03 R04 LB 4 4 220 3 970 R04 Outlet LL 31 4 260 3 800 Enter the data for each of the four reaches The data entry for reach RO1 should appear as shown below Stream Reach Current File C WinTR20 ManualsWData_Examples Example2 inp Delete Reach LE E NE E I LE NE NE E ie Ho Changes Accept Changes Close Close Figure 4 20 Once all four reaches have been entered click Accept Changes Close to leave this window and return to the WinTR 20 System Controller Editor window WinTR 20 User Guide 88 Revision Date July 23 2004 Cross Section Rating Entry Next we need to enter the rating elevation discharge end area top width and friction slope for each stream routing reach This information is developed outside of the Win TR 20 program using uniform flow relationships i e Manning s Equation or a non uniform open channel hydraulics model i e HEC RAS For this example the data for the four reaches was determined using an HEC RAS model The ratings for the reaches are given in the tab
71. eader data Invalid character Input found in Y N or 0 7 input for Input Field Name field and Identifier Name Identifier of Data Section Data Section Header XXX Less than two greater than zero Data Types for Input Field Identifier Identifier Value Maximum number of hydrograph points XXXXX exceeded while channel routing adding nvaroaraphn generating hvdroaraph O orage outing Identifier for Alternate Alternate dentifier and Storm Storm Identifier Missing AREAS or REACHES subheader in input for Alternate Alternate Identifier moe e Data Type than expected XXX encountered for Identifier Name Identifier of Data Section ion Heade AAA WinTR 20 User Guide 142 Revision Date July 23 2004 Error Message Text Multiple Data Section Sub header subheaders provided for current reach and current sub area and or blank Identifier Name Identifier of Data Section Data Section Header XXX Multiple decimal points in Input for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX No Data Type data read from TR 20 input file No decimal point in Input for Input Field Name and Identifi
72. ection Identifier and Index Structure Identifier and Index Split Flow Reach Identifier and Index and Split Cross Section Identifier and Index for Reaches the Input Hydrograph Identifier Input Hydrograph Storm Identifier and Index for Input Hydrograph the Storm Identifier the Gage Rain Table Identifier and Index for the Storm Blank is No Rainfall Distributions Used Output gives the discharge end area and rating exponent M for cross sections Blank is No Reservoir Emptying Time Indicates whether to output Reservoir Emptying Time Section data after read in and data conversion Blank is No Upstream Reach Components Output gives the Reach Identifier the numbers of Sub Area Input Hydrographs and Reaches the First and Last Array Indexes and the Array Upstream Index Reach Identifier Code indicating whether to output Upstream Reach Blank is No Number of Hydrographs Output gives the operations Generate Route and Add the Reach Identifier the Reach Array Indexes for hydrograph Storage and notes on Starting at X requires Y hydrographs to be stored and the Selected Starting Reach requires Z hydrographs to be stored Blank is No Watershed Analysis Steps Output gives for each storm for each Operation Generate Route O Route S Combine Input Hydrograph Split Flow Split Flow with Lost Flow the Reach or Sub Area Identifier the Receiving Reach Identifier the Input Hydr
73. ed to enter descriptive notes in the Watershed Description lines to help identify the files later Click No Changes Close or Accept Changes Close WinTR 20 Identif Current File gt Untitled lt WinTR 20 Identifier Window Enter or edit general information about the input data Input units MUST be verified before entry of other information Changing input units ONLY changes units displayed on this and other editor windows but DOES NOT convert previously entered values from English to Metric or vice versa Input units code is interpreted by the WinTR 20 model to make appropriate conversions when it is run No Changes Accept Changes Close Close Figure 3 11 WinTR 20 Identifier Window Data Section Name List The next step is to enter the necessary data Choose from the data section names list which consists of Alternative Analysis Dimensionless Unit Hydrograph Duration Increment Global Output Input Hydrograph Rainfall Distribution Stream Cross Section Stream Reach Storm Analysis Structure Rating Sub Area Time Analysis and Verification Selecting the Data Section Name desired brings up a data entry window for that particular data Note After the data are entered and accepted by the user the user will see the X displayed on the left side of the data section name X indicates that there are some data entered from the user See Figure 3 12 shown below WinTR 20 User Guide 19 Revision Date July 23 2004 WinTR
74. een entered hit return and the data is transferred to the table on the right hand side Data cannot be directly entered or altered except to delete a line from within the table If you realize you ve made an entry error after the data is transferred to the table simply click on the line in the table and the data are brought back into the four boxes on the left where they can be edited When all the data have been entered the screen should look like Stream Cross Section Current File C WinTR20 Manuals Data_Examples Exa Sele DF 6 Cross Section Elevation Discharge End Area Top Width Display Data Ho Changes Accept Changes Close Close Figure 4 22 You can view a plot of the data by selecting the Display Data button This can be useful for checking for inconsistencies in the data Below is a plot of the data for DF 6 WinTR 20 User Guide 9 Revision Date July 23 2004 Input Output Plots File Edit Help Cross Section DF 6 FLOW cfs X END AREA sqft gt TOP WIDTH f 1321 1322 1323 1324 1325 1326 1327 1328 1328 ELEVATION t Example2 inp Figure 4 23 After the first cross section has been entered go back up and select the next cross section LB 4 using the down arrow adjacent to Cross Section Identifier Enter the data for that cross section Finally repeat the process one more time to enter the final rating for cross section LL 31 Select Accept Changes Close when
75. el Outlet is now the on the west side of the city Sub area 001 no longer has Outlet as its downstream receiving reach We need to change the Sub Area Reach Identifier from Outlet to ROL Right click in this box to highlight Outlet While highlighted make the replacement by typing R01 and then hitting return to get the program to accept the change It should appear as shown below WinTR 20 User Guide 84 Revision Date July 23 2004 Sub Area Current File C WinTR20 Manuals Data_Examples Example2 inp Jf Sub Area Sub Area Identifier 004 X Delete Sub Area Sub Area Reach Identifier 31 Sub Area Rain Gage identifier Sub Area Peak Output Codes Nes No Blank Sub Area Hydrograph Sutput Code Yes No Blank Sub Area Time Analysis det esr ENS ie Blank Sub Area Hydrograph Fite Dode Yes No Blank greed Tc Details Ho phe ec tics ode Figure 4 16 Sub Area 001 Next we ll add the information for all the other sub areas To do this simply place the cursor in the Sub Area Identifier window and click to highlight the current sub area Now type the name of the sub area you are about to enter and hit return the data from the previous sub area will remain in view until the return key is hit Enter the remainder of the information for the sub area Below is how the screen should look after the data has been entered for sub area 003
76. elerity and Delta t Routing Step Information includes Section data to Peak Flow Flow Rate Area Friction Slope Top Width Exponent and the Muskingum Parameters Weight X and Route K the routing Coefficient terms C1 C2 C3 the Courant Number and Grid Reynolds s Number and the Intermediate Hydrograph table Blank is No Hydrograph Structure Routing Output gives by Storm Reach Peak Flow Rate and Time Volume and the Hydrograph point at the time increment and the number of points The Structure Elevation Flow Rate temporary Storage and working Curve Value and the steps per hydrograph increment are also given Blank is No Hydrograph Addition Output gives by Storm and Reach the Hydrograph Hydrograph Storage Code Start and End time and Time Increment for the 2 hydrographs to be added 1 In and 2 In and the two addition combinations at the 2 time increments 1 Combo and 2 Combo The Combination selected to keep is that with the highest peak the Peak Flow Rate Time Volume and the Hydrograph table is printed out for the one selected Blank is No Hydrograph Flow Splitting Output gives by Storm for Original Reach the Split Flow Reach and the Remaining Reach Peak Flow Rate and Time Volume and the Hydrograph point at the time increment and the number of points The Elevation and Flow are also tabulated Blank is No Flow Duration Computations Output gives by Stor
77. er Name Identifier of Data Section Data Section Header XXX No empty hydrograph storage location for saving Input Hyd Sub Area or Split Flow for Alternate den alue and Storm Identifier Value No Input Field Name data entered for Another Input Field Name Input No output using global codes sub area codes or reach codes were selected No output no run No rainfall data entered for Storm Identifier Identifier and Rain gage Identifier combination ic character s in Input for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Reach Reach Identifier for Alternate Alternate Identifier has no inflows at upstream end Runoff curve numbers for Curve Number Identifier Identifier Value not increasing from Curve Number A to Curve Number D Subheader Input encountered for Identifier Name Identifier of Data Section Data Section Header XXX but not required Input Field Name or Another Input Field Name has been identified Subheader Data Section Sub header not used as Data Type provided for Input Field Identifier Identifier Value and Identifier Name Identifier of Data Section Data Section Header XXX ext field Input Field Name contains more than X character s for Identifier Name Identifier of Data Section Data Section Header XXX oo many Input Field Names encountered in Data Section Header data section wo different Input Variable Name X XXX amp X XXX entered for Another Input Variable Name I
78. es in the watershed from the starting condition for creating alternative watershed analyses Changes can only be made to the land areas Sub Areas and the stream system Beaches Alternative information is cumulative such that the changes made to the first alternate will also be in the second alternate along with any alternate two specific changes This window contains only a summary listing of the Sub areas and Reaches that are changed with an alternate The actual modified Sub area and reach data are entered on the Sub Area and Reach Ho Changes Accept Changes windows that are called from this window Close Close Figure 3 13 Additional Help Window Alternate Analysis To enter alternative analysis data click on the Alternate Analysis from the data section name list Figure 3 6 Once the alternative analysis is selected the Alternate Analysis Data Editor window will appear as shown in Figure 3 14 your alternative analysis editor will come up with a blank window until you have entered the alternative analysis data Note Changes can only be made to the land areas Sub Areas and the stream system Reaches To generate the alternate analysis for the model do the following steps 1 Enter Alternate Identifier Hit Enter 2 Enter Alternate Description Hit Enter 3 Enter the Sub Areas and or Reaches to be changed the actual data modifying Sub Areas and Reaches data are entered on the Sub Areas and Reach windows that can be
79. finished to return to the WinTR 20 System Editor Controller window Entering the Storm Data If you are building off Example 1 this data should already exist check Storm Analysis from the WinTR 20 System Controller Editor window If not see Example 1 on how to enter this data Setting Output Parameters As pointed out in Example 1 it is best to make an initial run by selecting peak discharge information only Selecting hydrograph output for plotting or tabular viewing at this point can clutter up the WinTR 20 Printed Page File output From the WinTR 20 System Editor Controller window select Global Output Once in Global Output select Default Peak Output Code for both sub areas and reaches Following this select Accept Changes Close to return to the WinTR 20 System Editor Controller window WinTR 20 User Guide 92 Revision Date July 23 2004 Viewing Schematic Input Running the Model Before the user can run the model the input file must be saved Select File and Save As from the WinTR 20 System Controller Editor window Give the file an identifiable name and place it in the desired directory Once the file is saved the View and Run options appear at the top of the WinTR 20 System Controller Editor window View allows the user to look at the watershed schematic and the input file in an ASCII format Select View then Schematic You should see the following window
80. hat a top width and friction slope be added for stream cross section data which were not included in the older input data The converter generates a top width value for each elevation based on the depth and end area but it does not generate a friction slope and lists the friction slope as Missing Any reaches in old data sets that used the routing coefficients x and m instead of cross section data will require additional cross section data Thus after conversion most converted TR 20 data will need to be supplemented before it will run in the WinTR 20 model The IPEAKS feature and the option of using the rainfall table as a runoff table that were part of the old TR 20 have not been included in the WinTR 20 System model If they are part of an old data set that is being converted they do not cause an error as they are just not retained in the newly created input file Also multiple main time increments are not used in WinTR 20 WinTR 20 User Guide 123 Revision Date July 23 2004 5 3 Verify Converted Data While the converter attempts to convert as much of the old input data as possible some situations may not convert as expected It is the responsibility of the user to verify that the converted data is still representative of the watershed being modeled 5 4 Output Files Three output files are generated from the TR 20 Converter They are the new WinTR 20 file xxx inp an error file xxx err and debug file xxx dbg Any errors enc
81. hese other elevations if desired to the cross section data prior to running WinTR 20 6 3 3 Data Checking Profile elevation discharge and area must increase with successive profiles in the table WinTR 20 produces an error if elevation discharge or area does not increase from one profile to the next in the table The Energy Grade slope is checked to see if it is 0 00001 or greater there is a lower limit on slope in WinTR 20 If an error occurs an error message is placed in the error file which identifies the cross section and profile where it occurs The data need to be revised in order for WinTR 20 to run successfully 6 4 Number of profiles in the HEC RAS output table WinTR 20 requires a minimum of two non zero discharge profiles in a cross section rating table If there is only one profile run in HEC RAS an error is placed in the error file Though there is no limit to the maximum number of profiles run in HEC RAS or that are acceptable to WinTR 20 the TR20 HEC RAS Rating program has a limit of 200 6 5 Output File In the output file actually a WinTR 20 input file a WinTR 20 Run Identifier record and two WinTR 20 Watershed Description records which contain the two title records from the HEC RAS output table are placed at the beginning of the file These are provided for data identification project plan etc and for the possibility of importing this file to the WinTR 20 User Guide 133 Revision Date July 23 2004 WinTR 20
82. ications Tables For all items a check in the box means Yes and leaving the box blank means No Read Data Section Output in Debug File Check Box Alternates Read Echo of input data after read in and data Yes Blank conversion is No Dimensionless Unit Echo of input data after read in and data Yes Blank Hydrograph Read conversion is No Duration Increment Echo of input data after read in and data Yes Blank Read conversion is No Global Output Read Echo of input data after read in and data Yes Blank conversion is No Input Hydrographs Echo of input data after read in and data Yes Blank Read conversion is No Rainfall Distribution Echo of input data after read in and data Yes Blank Read conversion is No Runoff Curve Numbers Echo of input data after read in and data Yes Blank Read conversion is No Stream Cross Sections Echo of input data after read in and data Yes Blank Read conversion is No Stream Reaches Read Echo of input data after read in and data Yes Blank conversion is No Storm Analysis Read Echo of input data after read in and data Yes Blank conversion is No Structure Ratings Read Echo of input data after read in and data Yes Blank conversion is No Sub Areas Read Echo of input after read in and data conversion Yes Blank is No Time Analysis Read Echo of input data after read in and data Yes Bl
83. in one model run A summary table for all alternates and storms within the run can be produced Direct runoff is computed from watershed land areas resulting from synthetic or natural rain events The runoff is routed through channels and or impoundments to the watershed outlet 1 2 Brief History Natural Resource Conservation Service NRCS hydrology techniques are based upon unit hydrograph theory and the runoff curve number method of calculating direct runoff from the rainfall occurring over specified areas National Engineering Handbook Part 630 Hydrology NEH 630 10 and 630 16 The Soil Conservation Service SCS and the Agricultural Research Service ARS developed the background theory and verification studies for these in the 1940 s and 1950 s In the beginning all necessary computations were done by hand or by calculators and an analysis of a sizeable watershed typically took weeks or months In the 1960 s the agencies cooperated to hire C E I R Inc to write a computer program in FORTRAN for the IBM 360 mainframe computer system 1964 This reduced calculation time enormously and allowed analysis of complex subwatershed systems to proceed much more rapidly even though the engineer still had to collect the data code it onto punch cards and get it to the mainframe location system for processing In the early 1980 s the program code was updated to FORTRAN 77 for use on the personal computers that were becoming a standard office fixtu
84. input file see Figure 5 2 WinTR 20 System Control New WinTR 20 File Open Existing WinTR 20 File ReOpen Last Session Convert old Data Import HEC RAS Local Land Use Local Soil HSG Figure 5 1 File Menu Main Window Open old TR 20 file Lookin DataSets d ea E A2 DAT My Recent e a3 DAT Documents sj as DAT s as DAT Ed tr20in dat Desktop j TU T My Network Files of type Data Files dat Cancel aces I Open as read only Figure 5 2 Open old TR 20 File Window WinTR 20 User Guide 121 Revision Date July 23 2004 After locating the old file the user clicks Open The old data file may have any legal extension During the conversion process the data file that is created is renamed oldfilename inp See Figure 5 3 Open old TR 20 file Look in e DataSets B3 e E3 My Recent Documents 2 Desktop My Documents My Computer Bm d az DAT A3 DAT s a4 DAT AS DAT E trzoin dat File name Files of type Data Files da gt Cancel Open as read only Figure 5 3 Input file selected Data Converter The program converts what it can of the input file putting the data into the correct format for the new WinTR 20 and displays the Main WinTR 20 window Where data needed by the new WinTR 20 is missing the converter flags this by printing missing in the appropriate data field WinTR 20 Identif Current File
85. int and Exit See Figure 3 54 Edit The edit menu currently includes Copy Zoom In Zoom Out Plot Points Plot Lines and Plod Grids See Figure 3 54 Help This would allow the user to view display showing help information Help files available under the Help menu includes Contents Index and About See Figure 3 54 WinTR 20 User Guide 61 Revision Date July 23 2004 File Edit Help Save As Copy Contents Print Review Zoom In Index Print Zoom Out About Exit Plot Points Plot Lines Plot Grids Input utput Plots File Edit Help amp afi IIS i ee s Hydrograph Storm test Area2 reach2 Upstream reach2 Downstream Outlet 4000 3500 3000 2500 mommpirouw o 100 110 120 TIME hr time flow test2 out Figure 3 54 Menu Options Hydrograph Window To generate a Peak Flow plot do the following steps l Click on the Peak Flow option button 2 Select Storm names 3 Select Flow Units either in cfs or csm 4 Leave Alternate blank if no data is entered from the Main Window 5 Select Sub Area or Reach or Outlet The user could select all 6 Display button is now visible Ta Click on Display button to view the Peak Flow plot An example of the Peak Flow window is shown in Figure 3 52 WinTR 20 User Guide 62 Revision Date July 23 2004 8 The plot can be shown as point and or lines with or without a background grid From the Edit
86. ion Used to identify downstream reach identifier Reach Length New Stream Reach Channel Length PROCEDURE 1 po PROCEDURE2 Routing Coefficient x Routing Exponent m NOT USED P V Display Code New Stream Reach Reach Peak Output Code ADDHYD Variable Converter Usage Data Code Identify record type upstream upstream SAVMOV Converter Usage Identify record type Operation Code Identify record type nput Hydrograph Location WinTR 20 User Guide 139 Revision Date July 23 2004 DIVERT BASFLO INCREM COMPUT WinTR 20 User Guide Variable Converter Usage Data Code DIVERT Operation Code ection Id tructure Id nput Hydrograph Location Output Hydrograph Location Output Hydrograph Location Identify record type Identify record type Identify record type New Stream Reach Cross section Identifier NOT USED Used to identify downstream reach identifier for reach upstream Used to identify receiving reach Used to identify receiving reach Discharge Drainage Area fraction Cross Section Id PROCEDURE 1 New Stream Reach Starting Split Flow New Stream Reach Split Flow Drainage Area NOT USED Blank Cross Section Id PROCEDURE 2 Used to determine which procedure is used New Stream Reach Split Flow Drainage Area New Stream Reach Split Flow Cross section Identifier P V Display Code HYD Display Code ELEV Display Code DUR Display Code ILE Display Code UM Displa
87. is Window Dimensionless Unit Hydrograph Window Display Data Dimensionless Unit Hydrograph Duration Increment Window Global Output Window Input Hydrograph Window Display Data Input Hydrograph Rainfall Distribution Window Display Data Rainfall Distribution Stream Cross Section Window Display Data Cross Section Data Stream Reach Window Storm Analysis Window Structure Rating Window Display Data Structure Rating Sub Area Window Land Use Areas Window Revision Date July 23 2004 Figure 3 31 Figure 3 32 Figure 3 33 Figure 3 34 Figure 3 35 Figure 3 36 Figure 3 37 Figure 3 38 Figure 3 39 Figure 3 40 Figure 3 41 Figure 3 42 Figure 3 43 Figure 3 44 Figure 3 45 Figure 3 46 Figure 3 47 Figure 3 48 Figure 3 49 Figure 3 50 Figure 3 51 Figure 3 52 Figure 3 53 Figure 3 54 Figure 3 55 Figure 3 56 Figure 3 57 Figure 3 58 Figure 5 1 Display Local Soil HSG Window Time of Concentration Window Time Analysis Window Verification Window Save or Save As Window Data Saved in File Window Run Perform WinTR 20 Window WinTR 20 Printed Page File WinTR 20 Input File Window WinTR 20 Error File Window WinTR 20 Debug File Window WinTR 20 Hydrograph File Window WinTR 20 ECON2 File Window WinTR 20 Main Window WinTR 20 Watershed Schematic Window Graphic Output Window Output Graphics Message Window Multiple Locations Window Single Sub Area Hydrograph Window Reach Hydr
88. ita i a Stating Split Have z cfs Ending aptit Fite cfs Split PArang Ares De il Ho Changes se Accept Changes Select Accept Changes Close when data from both reaches have been Input Sub Area Data Select Sub Area from the main System Controller Editor page Enter entered sub 001 for the sub area identifier This flow from this sub area will be going into the upper end of reach r1 Select this from the pull down menu to the right of Sub Area Reach Identifier Fill out the rest of the data as shown below and then select Accept Changes Close to return to the WinTR 20 Controller Editor main window Insert 4sc17 jpg here NEN up quick user quid Sub Area Jub tities Beni sbo v Delete A Sub Area Hiss Fess ertitier r4 This sain Gage Mentifiar z Dp nries rei nage ares j sq mi xgpehres Peglctlateur at Goce Ses EB d curve Number h isa Mei infe Curve Nurm 175 1 Sybex mma of Copoentzsti aoc 55 M Dirgo de E dggehpes ira 8nalfreis Gade Yes Sup ares hydtoacaphe Hie Code D r ses Ho Changes Close Select Accept Changes Close when the data has been entered WinTR 20 User Guide 114 ini x Ho Blank No Blank Ho Blank te Blank Accept Changes Close Revision Date July 23 2004 Input Storm Data Two events are required for this example The first one will be for the gaged event This first event will
89. k if channel flow velocity is entered Enter Channel Manning n Roughness coefficient n to use with channel flow path for the sub area Blank defaults to 0 04 Enter Channel Flow End Area Channel flow path channel cross sectional area to use for the sub area Enter Channel Flow Wetted Perimeter Channel flow wetted perimeter to use for the sub area Enter Channel Flow Velocity Channel flow velocity to use for the sub area Leave blank if End Area and Wetted Perimeter are entered The user could delete the current time of concentration by clicking on Delete Tc Details button then repeating steps 20 a through 20 n as desired to enter new time of concentration 41 Revision Date July 23 2004 20 p Click on Return to Sub Area button to return Sub Area Window Time of Concentratio Current File C IR20_Beta_Test DataSets alts inp IE Delete Tc Return to Sub Area Figure 3 32 Time of Concentration Window Click on Accept Changes Close for the interface to accept the data Time Analysis Time Analysis yieds the duration of flow for the user specified percentage of peack flow or the duration that flow depth has exceded a user specified elevations in either a stream reache or structure To enter time analysis data the user clicks on Time Analysis from the Main Window Figure 3 6 Once time analysis is selected the Time Analysis window will appear as shown in Figure 3 33
90. l go with the split flow reach or diversion This should be most relective for the storm of interest Also the user could delete the current Stream Reach by clicking on Delete Reach then repeating steps one through fourteen as desired to enter and select a new stream reach Click on Accept Changes Close for the interface to accept the data Stream Reach Current File C TR20_Beta_Test DataSets alts inp LI M E EM LIA E E eeee ach must have a Stream Receiving ie sh er o OUTLET which de sines me Cros paet and S structure ifiers are re rcd Any Reach output ft Blank will use the default value from code Glob al Output data Ho Changes Accept Changes Close Close Figure 3 25 Stream Reach Window 33 Revision Date July 23 2004 Storm Analysis To enter storm analysis data the user clicks on Storm Analysis from the Main Window Figure 3 6 Once the storm analysis identifier is selected the Storm Analysis window will appear as shown in Figure 3 26 your input storm analysis editor will come up with a blank window until you have entered the storm analysis data To generate the storm analysis for the model do the following steps 1 WinTR 20 User Guide Enter Storm Analysis Identifier Unique alphanumeric string identifying the storm to analyze Enter Rain Gage Identifier Alphanumeric string identifying the rainfall event characteristics to use in part or the entire watershed for a storm Leave bla
91. le below bankfull elevations in bold Recall that both reaches R02 and R03 both use the same stream cross section rating LB 4 Stream Cross Section DF 6 Elevation Discharge End Area Top Width Friction Slope cfs ft2 ft ft ft 1321 7 0 0 0 0 0020 1323 7 28 13 7 8 9 0 0022 1324 4 48 23 4 22 7 0 0023 1325 6 118 68 6 82 1 0 0030 1326 6 311 260 5 278 3 0 0035 1327 0 526 414 8 345 3 0 0029 1327 7 943 644 2 364 3 0 0027 1325 2 1379 832 3 372 6 0 0024 1328 7 1967 1049 0 383 6 0 0021 Stream Cross Section LB 4 Elevation Discharge End Area Top Width Friction Slope cfs ft2 ft ft ft 1306 2 0 0 0 0 0040 1307 6 28 17 9 18 3 0 0042 1308 1 56 28 1 20 6 0 0052 1308 7 95 40 3 22 5 0 0068 1310 1 237 78 1 29 3 0 0051 1311 0 506 133 2 35 1 0060 1312 4 622 156 8 38 3 0 0040 1316 4 1886 367 9 93 3 0 0037 1317 9 2758 579 0 159 5 0 0025 1319 5 3934 860 0 199 8 0 0020 The bankfull and low ground elevation entries are used to adjust reach routing parameters which compensate for reaches having different floodplain and channel routing distances usually channel routing distance is longer than floodplain routing distance The program will use the lower of the two in deciding the flow amounts in the channel vs floodplain WinTR 20 User Guide 89 Revision Date July 23 2004 Stream Cross Section LL 31
92. lsis Current File C TR20_Beta_Test DataSets alts inp n in Rain Table Id D Rain Gage Id D 2 D 2 D 2 D 2 D 2 D 2 D 2 nk Rain Gage Identifier there is only one 1 24 Ht rain is o flow portion of time of nce on ime of values are entered directly for all as then this field may be left blank Ho Changes Accept Changes Close Close Figure 3 26 Storm Analysis Window Structure Rating To enter structure rating data click on the Structure Rating from Main Window Figure 3 6 Once the structure rating identifier is selected the Structure Rating window will appear as shown in Figure 3 27 your input structure rating editor will come up with a blank window until you have entered the structure data To generate the structure rating for the model do the following steps 1 Enter Structure Identifier Unique alphanumeric string identifying the structure 2 Enter Structure Starting Elevation Starting elevation for routing hydrograph through the structure Blank defaults to base flow discharge elevation 3 Enter Structure Elevation Elevation of one point on the structure elevation discharge storage relationship Each structure elevation must increase from one line to the next 4 Enter Structure Discharge Discharge for the elevation point just referenced on the structure elevation discharge storage relationship Value for lowest elevation must be zero Structure discharge must increase with elevati
93. m Reach Peak Flow Rate and Time Volume and the Hydrograph point at the time increment and the number of points The Time Flow Elevation Flow and Flood Econ Data are also given Blank is No WinTR 20 User Guide 47 Revision Date July 23 2004 The WinTR 20 input header sections can be assembled in any order except that the first record must be the WinTR 20 identifier The Control Editor generate the input file with the data section headers in a fixed order shown in Table 3 3 Only the data sections that actually have data associated with them are included in the general file Table 3 3 Control Editor for WinTR 20 Input File File Identifier TR 20 Run Identifier must be 1 section Analysis Definition Sub Area Stream Reach Storm Analysis Rating and Hydrology Data Stream Cross Section Structure Rating Input Hydrograph Watershed Reference Data Dimensionless Unit Hydrograph Rainfall Distribution Local Land Use Output Related Data Duration Increment Global Output Time Analysis Verification Saving Data Once all the data are entered the user should save the data onto the hard disk This can be accomplished by selecting Save or Save As from the File pull down menu on the main window See Figure 3 35 shown below The Save choice is only available if the data has previously been given a file name WinTR 20 User Guide 48 Revision Date
94. n Zero Damage Elevation New Stream Cross Section Zero Damage Elevation Bom c m c w KIOL Z S E aon aS iis SISI Elsie EA wS Ie Slo EISI S G lal amp Sie lols E DISP jF amp o lt E E 5 STRUCT Variable Converter Usage Identify record type TRUCT tructure ID Number pillway Discharge torage Data Code WinTR 20 User Guide 125 Revision Date July 23 2004 DIMHYD Variable Converter Usage Data Code Identify record type Identify record type Time Increment NOT USED Data Code NOT USED Discharge Peak Discharge Ratios New Dimensionless Unit Hydrograph Dimensionless Hydrograph Points Data Code NOT USED NOT USED RAINFL Converter Usage Identify record type RAINFL i Runoff Option Time Increment Accumulated Rainfall Depths New Rainfall Distribution Mass Rainfall Points Data Code ENDTBL READHD Variable Converter Usage Data Code Identify record type RUNOFF Converter Usage Identify record type tructure Id Contributing Drainage Area Time of Concentration V Display Code ILE Display Code New Sub Area Sub Area Hydrograph File Code UM Display Code New Sub Area Sub Area Peak Summary Output Code Variable Data Code Time of Concentration WinTR 20 User Guide 126 Revision Date July 23 2004 RESVOR REACH ADDHYD WinTR 20 User Guide Converter Usage Identify record type Identify record type Identify record type
95. n diked reach that conveys the flows from the upstream drainage area will be named r1 The user will need to enter e The stream reach identifier rl e The reach name that will be receiving the flow from reach r1 7 outlet e The cross section identifier name containing the rating curve for reach rl xsec 10 e Reach lengths for the reach routing that will occur within that reach 2 2 000 feet e The name of the reach that will be receiving the split flow from the culvert ds culv e The split flow cross section identifier name containing the rating curve for the culvert culv WinTR 20 User Guide 112 Revision Date July 23 2004 e The fraction of the total drainage area to associate with the split flow out through the culvert 0 01 Clicking on the yellow variable names within the editor will provide the user with useful information regarding each of the parameters Recall from the documentation that the split flow occurs at the upstream of the reach In other words a portion of the hydrograph is split off through the culvert at the upstream end of reach rl The remaining flow going down rl is then reach routed 2 000 feet using the rating curve xsec 10 See the screen below for how data Reach r1 should appear in the Stream Reach screen Insert 4sc5 jpg here t File C quick user example divert divert inp The reach just downstream of the culvert actually up the side drainage coming into the
96. name not gt Untitled lt and the data has not been modified since it was loaded or saved If Run is not displayed then save the current data to make the Run pull down visible Close Figure 3 5 Getting Started Window Screen Clicking on the File button on the Main Window opens a menu that will allow the user to start developing a dataset see Figure 3 6 After initiating the dataset the famous TR 20 main window is available WinTR 20 User Guide 14 Revision Date July 23 2004 File Menu iew Menu Plots Menu New WinTR 20 File Schematic See Figure 3 7 Open Existing TR 20 File Input File Graphics Output Window ReOpen Last Session mee ee Printed Page File Covert old Data Error File Import HEC RAS Debug File Hydrograph File Local Land Use FloodEcon File Local Soil HSG Save Save As Exit WinTR Editor 2001 urrent File C umdgis mdinterface tr 20 tr 20in inp DER File View Run Plots Help Analysis X WinTR 20 Version 1 0 Verification Run Data Section Name to Enter Data Help Menu Performs Alternative Analysis WinTR 20 System Diagram Calculation Dimensionless Unit Hydrograph mm Duration Increment Overview Global Output Help Facilities Input Hydrograph Getting Started Rainfall Distribution Stream Cross Section About Control Editor Stream Reach Storm Analysis Structure Rating Sub Area WinTR 20 Version 1 00 Verification Figure 3 6 The WinTR 20 System Controller Editor Main Win
97. ng Started and About Control Editor See Figures 3 3 3 5 WinTR 20 User Guide 16 Revision Date July 23 2004 Data Section Name to Enter Data The data section name list includes Alternate Analysis Dimensionless Unit Hydrograph Duration Increment Global Output Input Hydrograph Rainfall Hydrograph Stream Cross Section Stream Reach Storm Analysis Structure Rating Sub Area Time Analysis WinTR 20 Conversion and Verification By clicking on a Data Name the user brings up the window that allows data entry on the corresponding window Note An X indicates some data entered for section 3 2 Steps in Using the WinTR 20 System Controller Editor e Starting a New WinTR 20 File e Data Section Name to Enter Data e Saving Data e Performing the WinTR 20 calculations e Viewing and printing results Starting a New WinTR 20 File Double click on the WinTR 20 Icon This will bring up the WinTR 20 System Controller Editor window shown in Figure 3 9 Figure 3 8 WinTR 20 Icon in Windows WinTR 20 User Guide 17 Revision Date July 23 2004 TO Syet E d aa WinTR 20 System Controller Editor E3 File Help Disclaimer Although the WinTR 20 system software has been tested by its developers NO warranty expressed or implied is made as to the accuracy and functioning of the programs and related program material nor shall the fact of distribution constitute any such warranty and NO responsibility is assumed by the developers in
98. ngton DC Katie Chairson NRCS Beltsville MD Roger Croshey NRCS retired Don Woodward NRCS retired Conservation Engineering Division United States Department of Agriculture Natural Conservation Service WinTR 20 User Guide Table of Contents WinTR 20 User Guide 2 Revision Date July 23 2004 Chapter 1 1 1 1 2 1 3 1 4 1 5 1 6 1 7 Chapter 2 2 2 2 3 Chapter 3 3 1 3 2 3 3 3 4 Chapter 4 4 1 4 2 4 3 4 4 WinTR 20 User Guide Introduction Program Description Brief History Model Overview Capabilities and Limitations Minimum Data Requirements User Responsibility Overview of This Manual Installing of WinTR 20 System Computer Requirements Installation Procedure Uninstall Procedure WinTR 20 User Overview Starting WinTR 20 Steps in Input and Editing with WinTR 20 A Starting a New Project B Data Preparation C Alternate Processing D Model Output E WinTR 20 Converter Converting Old TR 20 Data Importing HEC RAS Data Working with Project Example 1 4 Example 1 Single Sub Area Model A Single watershed without reaches B Time of Concentration C Runoff Curve Number Example 2 Entire Upstream Watershed Model A Watershed comprised of 8 sub areas and 4 reaches B Developed rating curves for reaches using HEC RAS Example 3 Entire Upstream Watershed Model with Reservoir A Model entire watershed B Proposed reservoir in place C Two stage riser design D Using
99. ning and viewing output It is not the intent of these examples to provide detailed descriptions of input sources design of structures theory of hydrologic processes and interpretation of output Thus discussion of these subjects is very limited Example 1 Single Sub Area Model Purpose This example illustrates the model set up of sub area 001 the furthest upstream tributary of the Spring Valley watershed The following sub area 001data is provided WinTR 20 User Guide 68 Revision Date July 23 2004 Land Use Details 0 48 square miles of Row Crop Straight Row Poor HC HSG B 1 27 square miles of Row Crop Straight Row Crop Residue Poor HC HSG B 1 27 square miles of Row Crop Straight Row Crop Residue Good HC HSG B 0 34 square miles of Row Crop Contoured Crop Residue Good HC HSG B 0 37 square miles of Pasture Fair HC HSG B Time of Concentration Details 100 feet of sheet flow 0 04 ft ft grade cultivated with gt 20 residue cover 3 100 feet of shallow concentrated flow 0 004 ft ft grade unpaved 13 300 feet of channel flow at 2 fps Storm Details Return Period 24 hour Rainfall Rainfall 24 Hour Amount Distribution Amount 2 93 inches 24 hour TypeI ARC 2 3 77 inches 24 hour Type I ARC 2 Win TR20 Identifier Record Entry To get started select Shortcut to WinTR20 System from the desktop This will bring up the main Win TR20 System Controller Editor From the
100. nk if only one rain gage is used for the entire watershed This identifier can be used to help designate the subarea s tha are exposed to different rainfall amounts starting times distributions and or antecedent runoff conditions than other subarea s for the same storm identifier if applicable usually done only for calibration purposes Enter Gage Starting Point Starting time for the rainfall at the rain gage ID for the given storm ID Blank indicates 0 0 hr Enter Gage Rainfall Depth of the rainfall at the rain gage ID for the given storm ID Leave blank if Rainfall Distribution represents an actual storm Enter Gage Rain Table Identifier To identify the rain distribution at the rain gage ID for the storm ID Gage Rain Table Identifier must match a Rain Table Identifier in Rainfall Distribution Enter Antecedent Runoff Condition Antecedent runoff condition to apply to runoff curve numbers in the watershed areas that use the Rain Gage Identifier Acceptable values are 1 Dry 2 Average and 3 Wet Blank indicates 2 Based on procedure described in NEH part 630 Chapter 11 Enter 2 Yr 24 Hr Rain Rainfall amount attributed to the 2yr 24 hour event Needed for computing sheet flow portion of sub area Tc Leave blank if no sheet sub header records are included either with Sub Areas or Alternate Areas Click on Accept Changes Close for the interface to accept the data 34 Revision Date July 23 2004 Storm Anay
101. not used in the new input format The data are presented in the order in which they appear in the 1992 TR 20 user manual Commands which do not transfer to the new format as shown in the table above are not included in the detail below Table B 2 Old TR 20 Input Data and use in present WinTR 20 System Input JOB Converter Usage OB Identify as oldTR 20 Input TR 20 Watershed ID ECON ULLPRINT UMMARY lot Options TITLE Variable Converter Usage TITLE Identify record type Descriptive text New Watershed Description WinTR 20 User Guide 136 Revision Date July 23 2004 ENDJOB Variable Converter Usage Data Code NOT USED ENDJOB Identify record type Operation Number Identify record type DURINC Converter Usage Identify record type Units for durations Duration Data Code ENDTBL XSECTN Variable Converter Usage Data Code Identify record type Discharge New Stream Cross Section Cross Section Discharge may be modified by Drainage area above New Stream Cross Section Cross Section End Area STRUCT Variable Converter Usage Data Code Identify record type TRUCT tructure ID Number Data Code Elevation pillway Discharge torage Data Code ENDTBL DIMHYD Converter Usage Identify record type Time Increment Data Code Discharge Peak Discharge Ratios New Dimensionless Unit Hydrograph Dimensionless Hydrograph Points Data Code RAINFL Variable Converter Usage Data Code
102. nput Value Unacceptable character s in Input for Input Field Name field for Identifier Name Identifier of Data Section Data Section Header XXX Unexpected end of file encountered after Identifier Name Identifier of Data Section Data Section Header Unexpected new Data Type encountered for Identifier Name Identifier of Data Section Data ection Header XXX Unrecognized input data Input Record encountered for Identifier Name Identifier of Data Section Data Section Header XXX Unrecognized Input Field Name value Input encountered for Identifier Name Identifier of Data Section Data Section Header XXX Unrecognized subheader Input for Identifier Name Identifier of Data Section Data Section Value Input above acceptable maximum Minimum Input Value for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Value Input below acceptable minimum Minimum Input Value for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Value X XXX converted from Input above acceptable maximum Maximum Input Value for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Value X XXX converted from Input below acceptable minimum epo enam for Input Field Name and Identifier Name Identifier of Data Section Data Section Header XXX Record s not starting in column s XX and XX found in Data Section Header data Entire data ection ski
103. nrecognized Duration Units value Hour or Days encountered for Data Section Data Ori cade AAA HEC RAS Cannot find Rati able Entry X XXX for Input Field Name not greater than n Another Input Field Name X XXX for River Station Identifier of Data Section HEC RAS Data XXX Less than two profiles in HEC RAS data Cannot generate cross section data Unexpected end of file encountered after HEC RAS output file record Identifier of Data WinTR 20 User Guide 144 Revision Date July 23 2004 Appendix D Warning Messages Message Text Gage Rainfall amounts for multiple Storm Identifiers are the same for Rain Gage Identifier Rain Gage Identifier Multiple Gage Rain Table Identifiers assigned to Rain Gage Identifier Rain Gage Identifier Reach Channel Length Valley Length is greater than 2 for Reach Reach Identifier Reach Channel Length Valley Length is less than 0 5 for Reach Reach Identifier Reference flow X XXX exceeds highest cross section flow X XXX for Reach Identifier Alternate Alternate Identifier and Storm Storm Identifier Reference flow X XXX exceeds highest cross section flow X XXX for Reach Reach Identifier and Storm Storm Identifier Required storage discharge combination XXX XX exceeds highest structure working curve value XXX XX while storage routing Reach Reach Identifier Alternate Alternate Identifier and Storm Storm Identifier Require
104. nt File C TR20_Beta_Test Da SE 9 Enter or edit duration data for use in generating Flood Econ ecn output from WinTR 20 Data should only be entered if Flood Economics output is desired from WinTR 20 Ho Changes Accept Changes Figure 3 17 Duration Increment Window Duration Increment Window ner Uurar 1 Global Output To enter the global output the user clicks on Global Output in the Main Window Figure 3 6 Once this is selected the Global Output window will appear as shown in Figure 3 18 your global output editor will come up with some selected default values To generate the global output for the model do the following steps WinTR 20 User Guide 24 Revision Date July 23 2004 1 Enter the Hydrograph Print Precision Number of decimal places to use for hydrograph flows in page formatted output Hit Enter Blank indicates the default value tol 2 Enter Minimum Hydrograph Display Flow Value of the smallest hydrograph flow point shown for hydrograph flows in page formatted output Hit Enter Blank indicates the default value 0 5 cfs 3 Enter Print Time Increment Time increment between hydrograph points Hit Enter Blank indicates the default value of the hydrograph generation time increment 4 Select Peak Output Code for Sub Area and Reach Default values for both are No Selecting Yes will produce Peak values for all Sub Area and Reaches 5 Select Hydrograph Output Code for Sub Area
105. ocated at the downstream end of reach R02 The rating for this structure is given in the table below Elevation Discharge Storage cfs acre feet 1307 0 0 717 0 1307 5 T 754 3 1308 0 14 2 792 1 1308 5 21 3 829 8 1309 0 28 4 867 5 1309 5 35 5 905 2 1310 0 42 6 942 9 1310 5 49 7 1060 8 1311 0 56 8 1178 7 1311 5 63 9 1296 5 1312 0 71 0 1414 4 1312 5 92 6 1532 3 1313 0 114 1 1650 1 1313 5 135 7 1768 0 1314 0 157 2 1885 9 1314 5 178 8 2003 7 1315 0 200 3 2121 6 1315 5 221 9 2239 5 1316 0 243 4 2357 3 1316 5 265 0 2475 2 The required changes to the model are 1 Enter the structure data 2 Convert R02 from a reach routing to a structure routing the reach routing is replaced by a level pool routing Enter Alternative Data From the WinTR 20 Controller Editor window select Alternate Analysis This will bring up a window allowing you to enter an Alternate Identifier and Alternate Description Enter with res for the identifier and reservoir located at the downstream end of R02 for a description This window will look like WinTR 20 User Guide 99 Revision Date July 23 2004 Alternate Anaylsis Current File C WinTR20 ManualsWata Alternate Analysis C 3 inp Alternate Identifier with res ap piede Alternate Description leservoir located at the downstream end of R02 Click in appropriate box on right fo ad
106. ograph Window Outlet Hydrograph Window Multiple Hydrograph Window Tool Buttons Hydrograph Window Menu Options Hydrograph Window Edit Plot Options Window Peak Flow Window Single Reach Time Analysis Window Outlet Time Analysis Window File Menu Main Window Figure 5 2 Open Old TR 20 File Window Figure 5 3 Input File Selected Data Converter Figure 5 4 Convert Input File TR 20 Identifier Window Figure 5 5 Stream Cross Section Missing Friction Slope Window Figure 6 1 Tables WinTR 20 User Guide 5 Revision Date July 23 2004 Table 1 1 WinTR 20 Capabilities and Limitations Table 3 1 Rainfall Distribution Built in Tables Table 3 2 Verification Tables Table 3 3 Control Editor for WinTR 20 Input File Table 3 4 Graphic Output Table 5 1 Commands vs Data Sections Table 5 2 Old TR 20 Input Data and use in New TR 20 System Input Table 5 3 Old TR 20 Input Data Table 5 4 Converted Input Data Chapter 1 Introduction WinTR 20 User Guide 6 Revision Date July 23 2004 1 1 Program Description The WinTR 20 model is a storm event surface water hydrologic model applied at a watershed scale The model assists in the hydrologic evaluation of flood events for use in the analysis of water resource projects It can be used to analyze current watershed conditions as well as assess the impact of proposed changes alternates made within the watershed Multiple storms or rainfall frequencies can be analyzed with
107. ograph or Split Flow Identifier the Hydrograph Location Inl In2 Out1 Out2 and Number of Points Out1 Out2 Blank is No Non circular Reach Flow Path Output gives Pass Number Reach Index Upstream Count and Reach Index for the Reaches Satisfied Blank is No Alternate Update Output gives for Alternates Sub Area Identifier Drainage Area Tc Runoff CN Rain Table Identifier the Receiving Reach Identifier the Cross Section Identifier Structure Identifier Channel Length Valley Length Base Flow and Split Flow Reach Identifier Cross Section Identifier Starting Flow Ending Flow and Fractional Area Blank is No WinTR 20 User Guide 46 Revision Date July 23 2004 Table 3 2 con t Processing Verification Section Output in Debug File Check Boxes Hydrograph Generation Output gives the Sub Area Rainfall Distribution Storm Rainfall Amount Number of Points the Rain starting time and time increment the Mass Runoff Runoff Curve Number Number of Points Runoff starting time and time increment Sub Area peak flow rate time and volume the Hydrograph starting time and time increment and the Peak Rate Factor conversion Blank is No Hydrograph Channel Routing Output gives by Storm Reach Peak Flow Rate and Time Volume and the Hydrograph point at the time increment and the number of points with the Initial and revised Routing step lengths Wave C
108. on 5 Enter Structure Storage Storage Volume for the elevation point just referenced on the structure elevation discharge structure relationship Value of the lowest elevation must be zero Structure storage must increase with elevation 6 Display Data button should now be visible 7 Click on Display Data button to view the structure rating plot An example of the Structure Rating plot is shown in Figure 3 28 WinTR 20 User Guide 35 Revision Date July 23 2004 WinTR 20 User Guide Also the user could delete the current structure data by clicking on the Delete Structure button then repeating steps one through eight as desired to enter a new structure rating table Click on Accept Changes Close for the interface to accept the data Structure Rating Current File C XTR20 Beta TestiDataSetsY Elevation Discharge 0 715 25 1 54 716 28 717 39 6 Display Data Ho Changes Accept Changes Close Close Figure 3 27 Structure Rating Window Input Output Plots File Edit Help Structure 011 FLOW cfs STORAGE actt 714 5 ELEVATION alts inp Figure 3 28 Display Data Structure Rating 36 Revision Date July 23 2004 Sub Area To enter sub area data click on the Sub Area from Main Window Figure 3 6 Once the sub area identifier is selected the Sub Area window will appear as shown in Figure 3 29 your input sub area editor will come up with a blank window until you have entered the
109. on e ARC 2 Sub area Data The upstream watershed data is as follows e Drainage area 4 0 square miles e Runoff Curve Number 75 e Time of Concentration 5 5 hours Notes on Basic WinTR 20 Setup When the split flow data is entered a receiving reach for that portion of flow must be specified A very short reach 10 downstream of the culvert will be created for this purpose This reach will be designated dsculv The same rating that is used for splitting the flows will be used for this short reach Note that only a stage discharge relationship was provided for the split out through the culvert WinTR 20 requires a stage discharge end area top width friction slope data for both split flow and reach routing tables To complete the rating table that will be used for both 1 the splitting of flow between the main channel and the culvert and 2 the reach routing downstream of the culvert end area top width and friction slope must be entered For the end area and top width the discharge itself will be used as filler values anything could be used as long as they increase with elevation For friction slope assume 0 01 ft ft These filler values will not affect the results since 1 the split routine will only use the stage discharge portion of the table and 2 the downstream reach is so short 10 that the calculation reach inflow and outflow will essentially be identical A simplified schematic of the example is shown below
110. or Reach An example of the Reach Hydrograph window is shown in Figure 3 50 If no data entered or found the No data for requested plot found message will appear Just click OK as shown in Figure 3 47 Output Graphics Message This indicates that the user did not specifiy that a hydrograph was requested for the sub area or reach see figure 3 29 and 3 25 for Hydrograph Output Code Output Graphics E x No data for requested plot Found Figure 3 47 Output Graphics Message Plot Hydrograph at the Outlet Clicking on Outlet Alternate Sub Area and Reach should be blanks Display button should now be visible Click on the Display button to view the Hydrograph plot at the Outlet An example of the Outlet Hydrograph plot window is shown in Figure 3 51 57 Revision Date July 23 2004 16 Plot Multiple Hydrographs Click on Location button next to Multiple Hydrographs Select a Storm name Multiple Locations window is visible Leave Alternate blank Select from Sub Area Reach and Outlet Each item selected will be listed on the Multiple Locations window as shown in Figure 3 48 Up to 10 multiple selections may be made t Current File C TR20_Beta_TestWataSets alts inp EBK 100 year y 44006 Ria Upstream Ria Downstream R3e Upstream R3e Downstream Dutlet Figure 3 48 Multiple Locations Window 17 Display button should now be visible 18 Click on the Display button to view the Multiple Hydrographs pl
111. orms channel and structure routings for the watershed This chapter provides a quick overview of how a project is performed with the WinTR 20 software Special topics on how the WinTR 20 Converter and how to use on line help are also covered Contents e Starting WinTR 20 e Steps in Using the WinTR 20 System Controller Editor 1 Starting a New Project 2 Using Data Section Name List on the Main Window to Enter Data 3 Saving Input Data 4 Performing WinTR 20 Calculations 5 Viewing and Printing Results e WinTR 20 Converter e HEC RAS Reformatter 3 1 Starting WinTR 20 When you run the WinTR 20 Setup program you will get a new group of programs called WinTR 20 and a program icon called WinTR 20 The WinTR 20 should appear in the start menu under Programs A shortcut can be created and the icon for WinTR 20 will look like the following Figure 3 1 The WinTR 20 Icon for Windows To Start WinTR 20 from Windows e Goto Start menu and select Programs then select WinTR 20 Double click on the WinTR 20 Icon When you start up the WinTR 20 program the WinTR 20 System Controller Editor Main Window appears as shown in Figure 3 2 with the Disclaimer Statement and New User Click Here WinTR 20 User Guide 12 Revision Date July 23 2004 WinTR 20 System Controller Editor l File Help Disclaimer Although the WinTR 20 system software has been tested by its developers NO warranty expressed or implied is made as to the a
112. ose for the interface to accept the data 28 Revision Date July 23 2004 Rainfall Distribution Current File C TR20_Beta_Test DataSets alts inp Delete rew l pistribution Rainfall Distribution Window Enter or edit rainfall distribution data Standardized rainfall distributions including Type l Type IA Type IL Type Ill Typel 48 Type II 48 Type NM60 Type NM65 Type NM70 and Type NM 75 are built in to the WinTR 20 model and should not be entered here Display Data Close Close Figure 3 21 Rainfall Distribution Window Input Output Plots File Edit Help oOma rrczcoorp R A I N F A L L TIM E hr alts inp Figure 3 22 Display Data Rainfall Distribution WinTR 20 User Guide 29 Revision Date July 23 2004 Stream Cross Section To enter stream cross section data click on the Stream Cross Section from the Main Window Figure 3 6 Once stream cross section is selected the Stream Cross Section window will appear as shown in Figure 3 23 your stream cross section editor will come up with a blank window until you have entered the rainfall distribution data To generate the stream cross section for the model do the following steps 1 10 WinTR 20 User Guide Enter the Cross Section Identifier Unique alphanumeric string identifying the cross section Hit Enter Enter Bankfull Elevation Elevation at the top of the lowest blank in the cross section Hit Enter
113. ot An example of the Multiple Hydrographs plot is shown in Figure 3 52 19 Click on Close to get back to the Main Window WinTR 20 User Guide 58 Revision Date July 23 2004 im Input Output Plots j E loj xl File Edit Help Hydrograph Storm test Area 2 My gage D s Cc H A R G E 25 30 35 40 45 50 TIME hr time1 out Figure 3 49 Single Sub area Hydrograph Window iw Input Output Plots 21m xi File Edit Help Hydrograph Storm test reach1 Downstream moomrroo o 25 30 TIME hr smallgraphics out Figure 3 50 Reach Hydrograph Window WinTR 20 User Guide 59 Revision Date July 23 2004 ia Input Output Plots E 5 x File Edit Help Hydrograph Storm test D s c H A R G E 25 TI M E hr smallgraphics out Figure 3 51 Outlet Hydrograph Window a Input Output Plots Mm x File Edit Help tel ra es En amp a deis Hydrograph Storm test Area2 reach2 Upstream reach2 Downstream Outlet mommpirouw o 30 40 50 60 70 80 290 100 110 120 TIME hr time flow test2 out Figure 3 52 Multiple Hydrograph Window WinTR 20 User Guide 60 Revision Date July 23 2004 Save As Print Zoom In A Preview Copy Zoom Out Figure 3 53 Tool Buttons Hydrograph Window Under the WinTR 20 Hydrograph plot window has the following options File The file menu currently includes Save As Print Review Pr
114. ountered while converting the data set are written to the error file Any warning messages will be written to the debug file A listing of the error and warning messages can be found in Appendices D and E 5 5 Comparison of old and present WinTR 20 The data codes number in column two of the data file in the old input scheme that defined data types will not exist in the present scheme The various data section names perform their function In the present input scheme data is generally entered in 10 column fields on each data entry line A comparison of old TR 20 commands and present WinTR 20 data sections follows Table 5 1 Commands vs Data Sections Old TR 20 Present TR 20 Data Section Old TR 20 Present TR 20 Data Section Command Command ADDHYD JOB TR 20 Identifier ALTER Alternate Analysis LIST Alternate Analysis BASFLO Stream Reach PEAKS COMPUTE Storm Analysis RAINFL Rainfall Distribution DELETE Alternate Analysis REACH Stream Reach DIMHYD Dimensionless Unit Hydrograph READHD Input Hydrograph DIVERT Stream Reach RESVOR Stream Reach DURINC Duration Increment RUNOFF Sub Area ENDATA SAVMOV ENDCMP STRUCT Structure Rating ENDJOB TITLE TR 20 Identifier INCREM Global Output XSECTN Stream Cross Section INSERT Alternate Analysis Time Analysis IPEAKS 0 m Verification Features of the old program no longer supported include capabilities a
115. outing used in the present model and thus the need to determine peak flow at points within a reach is no longer necessary 2 The use of a rain table as a runoff table can be handled by changing affected sub area CN to 100 which converts all rainfall to runoff 3 A separate Data Check program is no longer needed as data checking is done within the WinTR 20 Controller Editor model 1 5 Minimum Data Requirements WinTR 20 can handle complex as well as very simple problems such as determining the peak flow for one watershed Analysis of a simple problem can be set up with a few records These data include WinTR 20 Identifier Input Units Code Output Units Code Minimum Hydrograph Value and Watershed Description Sub Area Sub Area Identifier Sub Area Reach Identifier Sub Area Drainage Area Sub Area Weighted Curve Number Time of Concentration Tc Details Select Sub Area Peak Output Code Hydrograph Output Code Time Analysis Code and Hydrograph File Code and Storm Analysis Storm Identifier Gage Rain Table Identifier Type I Type I 48 Type IA Type II Type WinTR 20 User Guide 9 Revision Date July 23 2004 II 48 Type III and Type NM 60 75 Gage Antecedent Runoff Condition 1 2 or 3 2 Yr 24 Hr Rainfall See Example 1 in Chapter 4 1 6 User Responsibility Results from the model can be sensitive to the input data It is the user s responsibility to ensure that all the input data whether it is actually entered or im
116. ow select Plots on the WinTR 20 System Controller Editor window menu Once in the Graphics Output window use the drop down menus to select the 25 year storm and 001 from the Storm and Sub Area choices respectively The Graphics Output window should look like this WinTR 20 User Guide 80 Revision Date July 23 2004 Graphics Output Current File C WinTR20 Manuals WData_Exampleste Sele Figure 4 13 Graphics Output Window Need to click another box to make Display button came up Select Display and you should see the following WinTR 20 User Guide 81 Revision Date July 23 2004 Input Output Plots File Edit Help Hydrograph Storm 25 yr D l S C H A R G E 18 20 22 24 26 28 30 TIME hr Figure 4 14 Hydrograph Storm 25 yr Multiple plots storms or locations can also be viewed After closing out of the 25 year storm display and going back to the Graphics Output window select Storm to the right of Multiple Hydrographs Directly below in the pull down menu to the right of Storm select the storms you would like to view This is done by highlighting the storm name and pressing the return key This action places each selected storm name in the Multiple Storms window located in the lower right Selecting the Display button now should show all the selected storm hydrographs For this example we had selected the 2 10 and 25 yea
117. owing specific order Select double click Min Ch El minimum channel elevation LOB Elev elevation of point where left overbank meets the channel bank ROB Elev elevation of point where right overbank meets the channel bank W S Elev computed water surface elevation for the profile Q Total total discharge at cross section Flow Area total flow area at cross section Top Width total cross section top width and Friction Slope slope of energy grade line for profile When each selection is made the table is built on the screen with each added variable After all eight variables are selected the table is complete on the screen Do not click OK yet 4 Click Additional Options The table appearing on the screen includes bridges and culverts Only valley cross sections are used in WinTR 20 so we would like to eliminate bridges and culverts from this table In order to do this make sure the only box checked on that window is Cross Sections If check marks appear in any other boxes click those boxes to remove the check mark Click OK to exit this window 5 The next step is to save this customized table so it can be stored and then used whenever HEC RAS is operated In order to do this click Options then Save Table and then enter a name for the table One possible selection for the name is TR20 Rating Table After naming the table click OK to exit 6 At this point
118. ploded through default values for blank data fields is appropriate for the watershed and watershed conditions being analyzed 1 7 Overview of This Manual This user s manual is the primary piece of documentation on how to use the WinTR 20 system The manual is organized as follows WinTR 20 User Guide Chapters1 2 provide an introduction and overview of WinTR 20 System and instructions on how to install and uninstall the software Chapter 3 provides a quick overview of the WinTR 20 System Chapter 4 describes the input and output parameters in detail and describes how to developed user defined tables Chapter 5 describes the TR 20 Converter and gives a comparison of Old TR 20 and present WinTR 20 Chapter 6 describes how the HEC RAS REformatter operates Chapter 7 describes how the HEC RAS Reformatter operates Appendix A contains a list of references Appendix B contains a list of Errors and Warning Messages 10 Revision Date July 23 2004 Chapter 2 Installing of TR 20 System 2 1 Computer Requirements The Controller Editor is the one part of the WinTR 20 system that is Windows based Windows 95 98 NT 2000 or XP when tested and therefore is sensitive to the computer display environment For best viewing set the monitor resolution to 1024 x 768 and the number of colors to greater than 256 If your computer monitor will not support these requirements the software will also run with a resolution of 800 x 600 with 256 colors
119. pped Note Some messages above may be written without Identifier Name Identifier of as not all input data sections use qualifying identifiers WinTR 20 User Guide 143 Revision Date July 23 2004 TR 20 Converter Error Message Text 1st TR 20 Input Converter input file record is not the required TH 20 Input Converter BETA TEST 05 record CANNOT PROCESS FILE Cannot find old TR 20 input data file Input File Name Data Section Name Operation Name is not a old TR 20 header Skip to next Data Section Duplicate Operation Name section in TR 20 Input Converter input file Entry X XXX for Rain Table Depth Ratio not greater than previous Rain Table Depth Ratio X XXX for rainfall number X of Data Section Data Section Header XXX First point of Data Type must be 0 0 for Identifier Name Identifier of Data Section Data Ori ricade AAA n put Field Name X XXX must be increasing for Identifier Name Identifier of Data Section m Option CN 100 0 for rainfall number X cannot be converted U
120. program calculate the Tc For our first example we will have the program calculate both from basic data Sub Area Current File gt Untitled joe Sub Area Land Use E Details Tc Details Ho Changes Accept Changes Close Close Figure 4 4 Sub Area Window When the Land Use Details button is selected the user will enter the number of square miles of each land use hydrologic soil group combination A scroll bar on the right side of that window helps the user navigate through the 90 possible land use area identifiers When this is done the program will calculate a composite RCN for that sub area In addition to the RCN this step also sums the total drainage area size for the sub area The screen below shows the data entered in the form the pasture land use and Row Crop C CR Good are entered but not visible on the screen shown Note the result shown at the bottom of RCN details window the total drainage is 3 73 square miles with a composite curve number of 76 8 WinTR 20 User Guide 72 Revision Date July 23 2004 Sub Area Land Use Current File gt Untitled Delete Land o use Details 77 86 931 Urban Newly graded 94 Fallow Bare 77 86 931 94 3l Fallow CR Poor 76 85 30 Fallow CR Good 74 83 83 30 Row Crop SR Poor 72 E 81 88 34 Row Crop SR Good 67 78 86 88 Row Crop SR CR Poor 71 80 87 30 Row Crop SR CR Good 64 75 82 85 Row Crop C Poor 70 75 84 88 Row Crop C
121. r events WinTR 20 User Guide 82 Revision Date July 23 2004 Input Output Plots File Edit Help D l E C H A R G E 18 20 22 24 TIME hr Figure 4 15 Multiple Hydrographs WinTR 20 User Guide 83 Revision Date July 23 2004 Example 2 Entire Upstream Watershed Model For this example we build upon Example 1 to include all the sub areas and reaches for the entire watershed The RCN s and Tc s are given directly for the remaining 7 sub areas we will not use the RCN and Tc details option as we did in Example 1 See the table below for RCN s Tc s and receiving reaches for each sub area Sub area Drainage Runoff Time of Reach that Area Curve Concentration receives sub mi2 Number hours area s runoff 001 From Example 1 ROI 003 1 90 72 2 30 R02 005 0 94 70 1 77 R02 007 2 27 80 2 76 R03 009 0 88 76 1 99 R04 011 2 29 73 2 50 R04 013 0 38 81 0 98 Outlet 015 1 37 79 2 03 Outlet Sub Area Entry Open the Example 1 model In the WinTR 20 Identifier line alter the description line to read Example 2 Entire Spring Valley Watershed and select Accept Changes Close From the WinTR 20 System Controller Editor window bring up the Sub area input window Use the arrow to the right of the Sub Area Identifier box to select 001 then hit the return key to bring in that sub area s information With this example the mod
122. r or enter OUTLET if reach flows directly to the watershed outlet Enter Reach Cross Section Identifier Name of the cross section data to use with this stream reach Also identifier must match a Cross Section Identifier in the Stream Cross Section Data Leave blank if the Reach Structure Identifier is entered and there is no split flow Enter Reach Structure Identifier Name for a structure that occurs in the stream reach Enter only if there is a structure in the reach The structure entered the identifier must match a Structure Identifier in the Structure Rating Data Leave blank if Reach Cross Section Identifier is entered Enter Reach Channel Length Length of the channel in the reach Leave blank if the Reach Structure Identifier is entered Enter Reach Valley Length Length of the valley flow path in the reach Leave blank if Reach Structure Identifier is entered and blank will default to Reach Channel Length Note If the Reach Channel Length is same as the Reach Valley Length then only entered Reach Channel Length Select Reach Peak Output Code Code to output Reach Peak flow data to printed page file Acceptable values are Yes No or Blank Blank defaults to Default Reach Peak Output Code Global Output Select Reach Hydrograph Output Code Code to output Reach Peak Flow and Hydrograph data to printed page file Acceptable values are Yes No or Blank Blank defaults to Default Reach Hyd
123. r the model do the following steps 1 10 11 WinTR 20 User Guide Enter Input Hydrograph Identifier Unique alphanumeric string identifying the hydrograph Hit Enter Enter Input Hydrograph Reach Identifier Alphanumeric string identifying the upstream end of the reach where the hydrograph will be added This must match a Reach Identifier in the Stream Reach Data Hit Enter Enter Input Hydrograph Start Time Time of the first input hydrograph point Blank indicates 0 0 hour Hit Enter Enter Input Hydrograph Time Increment Time increment used between the input hydrograph points should be greater than 0 0 Hit Enter Enter Input Hydrograph Drainage Area square miles or square kilometers Associated with the source of the input hydrograph Blank indicates the value is 0 0 Hit Enter Enter Input Hydrograph Base Flow cubic feet per second or m3 sec Associated with the source of the input hydrograph Blank indicates 0 0 Hit Enter Enter the Input Hydrograph Flows in cfs Display Data button should now be visible Click on Display Data button to view the input hydrograph plot An example of the Input Hydrograph plot is shown in Figure 3 20 Also the user could delete the current input hydrograph by clicking on Delete Hydrograph then repeating steps one through nine as desired to enter a new input hydrograph Click on Accept Changes Close for the interface to accept the data 26 Revision
124. ral Urban Desert Artificial 33 98 98 83 76 72 63 96 Land Use Area Drainage Area Drainage area associated with the land use and hydrologic soil group for the sub area Range 0 0 Sub Area Figure 3 30 Land Use Areas Window WinTR 20 User Guide 39 Revision Date July 23 2004 15 WinTR 20 User Guide w Display Local Soil HSG Soil Identifier Hse Aabab Bashish Caballo clay Dabney Eachus Fabius Gaasta Haar lao Jabu Kasluslu p mim ojojm m pio mimio Figure 3 31 Display Local Soil HSG Windows To enter Time of Concentration data click on the Tc Details button from the Sub Area window editor Once the Tc detail is selected the Time of Concentration window will appear as shown in Figure 3 32 your Time of Concentration editor will come up with a blank window until you have entered the time of concentration data The Time of Concentration analysis performed here is based on the velocity method described in WinTR 55 a The current Sub Area Identifier name will appear on the Time of Concentration window b Enter Sheet Flow Length Length along sheet flow path for sub area Generally beyond 100 feet the flow becomes concentrated flow Therefore sheet flow length is limited to 100 feet 30m Note 2 yr rainfall for Sheet Flow is entered with Storm Analysis c Enter Sheet Flow Slope Slope along the sheet flow path for the sub area length length or dimensionless d Enter Shee
125. re The document describing this program was released as an SCS technical release TR 20 Computer Program for Project Formulation Hydrology in 1982 SCS 1982 Engineers then were able to run the program version 83 9 dated 1986 at their own desk Numerous minor modifications and additions were made to TR 20 for the next 12 years and several draft versions with improvements had a limited distribution In late 1998 a WinTR 20 work group was organized to develop the next generation of the program suitable for triumphant entry into the new millennium and utilizing the expanded capabilities of the latest new computer technologies windows format WinTR 20 User Guide 7 Revision Date July 23 2004 1 3 Model Overview The major components of the WinTR 20 System are shown in Figure 1 The program components rectangular boxes are 1 the Controller Editor which allows the running of the other program components and the entry editing of data for the WinTR 20 model 2 the WinTR 20 model which is the heart of the system and performs the rainfall runoff and watershed routing calculations 3 the Data Converter which transforms old TR 20 input data to the new input format accepted by the WinTR 20 model and 4 the HEC RAS Reformatter which transforms HEC RAS output profile data to WinTR 20 stream cross section data The remaining rectangles WinTR 20 GIS Input Generator and FLOOD ECONOMICS represent programs for which direct links with the WinTR 20 s
126. reduces the 100 year peak discharge from 4 266 cfs down to 2 869 cfs Using Graphical Output For Models With Alternate Analysis Recall from Examples 1 and 2 that the user had the ability plot multiple hydrographs for viewing For this particular example suppose we would like to plot the with and without reservoir alternatives for the 25 year event First let s make a multiple plot for just downstream of the reservoir From the WinTR 20 Controller Editor window select Plots Once in the Graphics Output window select Alternate from Multiple Hydrographs Under Storm select the 25 year Next select the arrow next to the Alternate window Notice that the alternate is shown as with res select this and press return To get the original run results to be included select the blank line see footnote 7 7 Future versions of the program will have an original data designation for the run of the base data This will help clarify interpretations of both graphical and tabular output results WinTR 20 User Guide 103 Revision Date July 23 2004 above the with res and press return Next we need to select a hydrograph location to plot For the results just at the outlet of the reservoir we need the downstream end of reach RO2 Under Reach select RO2 and press return Notice the upstream and downstream choices are given Select downstream The Graphics Output window should appear similar to Figure 4 32
127. rent File gt Untitled lt Rain Gage Id Rain Table Id Ho Changes Accept Changes Close Close Figure 4 7 Storm Analysis Window Select the Accept Changes Close button to return to the main Controller Editor window Setting Output Options The last step before running this example is setting the output options Output options can be set in two places 1 within the individual sub area or stream reach record or 2 within the Global Output record Using Global Output results in the same output option for ALL sub areas and stream reaches For this example we ll use Global Output Select Global Output from the main Controller Editor window For this first run select Default Peak Output Code to Yes This results in the cleanest most readable output If you plan on using the hydrograph plotting option you must select the Hydrograph Output Code either within the Global Settings or in the sub area or reach where you want to make the plot Unfortunately this can produce excessive output in the printed output page since the hydrographs are displayed in tabular format on the fly between peak flow calculations Below is a copy of the Global Output window for this example WinTR 20 User Guide 75 Revision Date July 23 2004 m Global Output Current Global Output Hydrograph Print Precision gz Mini mur Hydrograph Display Flow 10 os Print Time Increment 4 0 ae Sub Area Reach Default Pe
128. rograph Output Code Global Output Select Reach Flood Economics File Code Code to output Reach Flood Economics data to Flood Economics file Acceptable values are Yes No or Blank Blank defaults to Default Reach Flood Economics File Code Global Output If selected Yes then Duration Increment data must be entered 32 Revision Date July 23 2004 10 11 12 13 14 15 16 WinTR 20 User Guide Enter Split Flow Reach Identifier Name must match a Stream Reach Identifier in Stream Cross Section Data that receives the split flow at the upstream end or enter OUTLET if split flows directly to the watershed outlet Leave blank if split flow is diverted out of the watershed Enter Split Flow Cross Section Identifier Name must match a Cross Section Identifier in Stream Cross Section Data Leave blank if split flow is determined by Starting Split Flow and or Ending Split Flow or by drainage area fraction Enter Starting Split Flow Starting flow for water in the split flow to the reach or diversion Must be blank if Split Flow Cross Section Identifier is entered Enter Ending Split Flow Ending flow of water in the split flow to the reach or diversion Must be blank if Split Flow Cross Section Identifier is entered and also may be blank if there is no upper limit when using Starting Split flow Enter Split Flow Drainage Area Estimated fraction of an accumulated drainage area that wil
129. rograph based on two stage discharge relationships An example of this would be where the user wants to model lateral diversion of water through a channel side weir Example 4 Scenario In this example the flap gate has broken off from a side inlet along a diked section of channel The user is asked to determine maximum flow and total runoff volume that leaves the channel by flow back through the side inlet for both an actual event and a 100 year hypothetical event Below is a plan and cross section view of the situation WinTR 20 User Guide 106 Revision Date July 23 2004 Plan View Cross Section View Flap Gate Broken Off 36 CMP Side Inlet Side Drainage Data Reach Split Flow Ratings For this example it is assumed that the flow out of the culvert is a single stage discharge relationship WinTR 20 cannot model flows with varying tailwater conditions The stage discharge area top width friction slope for the main channel just upstream of the culvert was developed using HEC RAS outside Win TR20 This rating is shown below Elevation msl Discharge cfs End Area sq ft Top Width ft Friction Slope ft ft 958 0 0 0 0 0 0 0 961 8 50 127 47 0 00011 962 3 100 151 50 0 00026 962 7 200 173 53 0 00069 963 1 300 192 55 0 001129 963 4 400 208 57 0 001571 963 6 500 222 59 0 001999 963 8 600 235 66 0 002446 964 0 700 248 70 0 002819 964 3 800 263
130. s within the Global Output screen Save the file then run again Now all the hydrographs should be interspersed within the printed page output Select Plots from the main WinTR 20 Controller Editor window Select Hydrograph as Graphic Type Location next to the Multiple Hydrographs Select the historic storm then r1 from the pull down menu next to Reach Select both upstream and downstream These should now appear in the Multiple Locations box to the right Next go back to the pull down menu next to Reach and select dc culv Select upstream The Graphics Output screen should now appear like Insert 4scl5 jpg here 10 2 629 watershed inches 2 399 watershed inches x 4 mi x 640 acres mi x 1 foot 12 inches WinTR 20 User Guide 118 Revision Date July 23 2004 r1 Upstream r1 Downstream de culv Upstream Finally select display and you should see hydrographs showing the split of the r1 hydrograph upstream into the two hydrographs 1 rl downstream of the culvert and 2 through the culvert dc culv Insert 4scl6 jpg here ia Input Output Plots Hydrograph Storm historic r1 Upstream r1 Downstream de culy Upstream 600 400 mowmrrown o 75 410 125 15 175 20 225 25 276 30 TIME hr divert out The last graphic to be displayed is the diverted hydrograph by storm Closing out the current plot and back at the Graphics Output screen select
131. s See Figure 3 32 Select Sub Area Peak Output Code Code to output Sub Area Peak Flow data to printed page file Acceptable values are Yes No or Blank Blank defaults to Default Sub Area Peak Output Code Global Output Select Sub Area Hydrograph Output Code Code to output Sub Area Hydrograph and Peak Flow data to printed page file Acceptable values are Yes No or Blank Blank defaults to Default Sub Area Hydrograph Output Code Global Output Select Sub Area Time Analysis Code Code to output Sub Area Time Analysis data to printed page file Acceptable values are Yes No or Blank Blank defaults to Default Sub Area Time Analysis Code Global Output Time analysis displays the duration of flow specified by the user as percent of peak in the time analysis data 37 Revision Date July 23 2004 10 Select Sub Area Hydrograph File Code Code to output Sub Area Hydrograph data to hydrograph file Acceptable values are Yes No or Blank Blank defaults to Default Sub Area Hydrograph File Code Global Output 11 Land Use Details button should visible if the user has nto entered data in the Sub area drainage or weighted curve number boxes 12 Tc Detail button should be visible if the user has not entered data in the Sub area Time of Concentration box Sub Area Current File C 1R20_Beta_Test DataSetstalts inp Se Ee Lodi EE EE S
132. s criticalCreek 0 000000 below acceptable minimum 0 00001 for Cross Section Friction Slope and Cross Section Identifier 1 of Data Section STREAH CROSS SECTION 3 0 000000 below acceptable minimum 0 00001 for Cross Section Friction Slope and Cross Section Identifier 1 of Data Section STREAH CROSS SECTION 4 Section Elevation 0 00 must be increasing for Cross Section Identifier 1 of Data Section STREAH CROSS SECTION 4 Section Discharge 0 00 must be increasing for Cross Section Identifier i of Data Section STREAH CROSS SECTION 4 0 000000 below acceptable minimum 0 00001 for Cross Section Friction Slope and Cross Section Identifier 1 of Data Section STREAH CROSS SECTION 5 Section Elevation 0 00 must be increasing for Cross Section Identifier 1 of Data Section STREAH CROSS SECTION 5 Section Discharge 0 00 must be increasing for Cross Section Identifier Figure 3 40 WinTR 20 Error File Window 52 Revision Date July 23 2004 WinTR 20 User Guide File Display Current File C 1R20_Beta_Test DataSets Springlawn dbg PIE Input File Printed Page File Error File Debug File han usual maximum 1 0 for Hinimum Hydrograph Value Hydrograph Le TR 20 record FloodEcon File Figure 3 41 WinTR 20 Debug File Window File Display Current File C TR20_Beta_Test DataSets 1res_2stm hyd Hydro graphWinTR 20 Version 1 0 Watershed with 1 subarea Area a Storm 01 0 4
133. sociated curve numbers based on hydrologic soil group This is done back on the WinTR 20 Controller Editor screen Click on File thean Local Land Use Then put in the appropriated user defined curve numbers for Hydrologic Soil Group A B C and D for the four boxes When complete click on Accept Changes Close WinTR 20 User Guide 38 Revision Date July 23 2004 This user defined Local Land Use data is then available on the Land Use Details routine for Sub Area data input d The Display Local Soils button is visible By clicking on this Display Local Soil button the Display Local Soil HSG window will appear as shown in Figure 3 31 the user is able to determine the Hydrologic Soil Group HSG that is associated with various soils e To return back to the Sub Area window editor by click on Return to Sub Area button f Also the user could delete the current Sub Area Land Use by clicking on Delete Land Use Details button then repeating steps 13 a through 13 f as desired to enter new Sub Area 14 Click on Return to Sub Area button to get back to Sub Area window editor Sub Area Land Use Current File C 1R20_Beta_Test DataSets alts inp BR JE Delete Land ew use Details Land Use Area Identifier Ames EN ees N carea EN narea 74 zi 68 79 86 E Open Space Poor 89 Open Space Fair 49 Open Space Good Impervious Roads Paved Roads Paved widitch Roads Gravel Roads Dirt Urban Desert Natu
134. ssociated with IPEAKS and PEAKS the runoff table entered as a rainfall distribution and the Data Check program Data checking is now done within the WinTR 20 model itself Table 5 2 shows how each piece of data in the old files is used or not used in the new input format The data are presented in the order in which they appear in the 1992 TR 20 user manual Commands which do not transfer to the new format are shown in Appendix B WinTR 20 User Guide 124 Revision Date July 23 2004 Table 5 2 Old TR 20 Input Data and use in WinTR 20 System Input JOB Converter Usage Identify as oldTR 20 Input FULLPRINT PASS NOT USED UMMARY NOT USED NOT USED TITLE Converter Usage Identify record type New Watershed Description ENDJOB Variable Converter Usage Data Code NOT USED DURINC Converter Usage Identify record type New Duration Increment Duration ess XSECTN Converter Usage Identify record type Identify record type Cross section ID Number Part of New Stream Cross Section Cross Section ID Drainage Area Used to convert discharge from csm to cfs Low Ground Elevation New Stream Cross Section Low Ground Elevation NOT USED New Stream Cross Section Cross Section Elevation New Stream Cross Section Cross Section Discharge may be modified by Drainage area above New Stream Cross Section Cross Section End Area NOT USED NOT USED New Stream Cross Section Bankfull Elevatio
135. sub area data To generate the sub area for the model do the following steps 1 2 WinTR 20 User Guide Enter Sub Area Identifier Unique alphanumeric string identifying the sub area Enter Sub Area Reach Identifier Alphanumeric string identifying the upstream end of the reach where the runoff from the sub area will be added Must match a Reach Identifier in the Stream Reach Data Enter OUTLET if sub area joins the stream system at the watershed outlet Enter Sub Area Rain Gage Identifier Alphanumeric string identifying the rainfall gage to use for the sub area Must match the Gage Identifier in Storm Analysis data Blank is acceptable if it matches a Gage Identifier Enter Sub Area Drainage Area Drainage area sq mi associated with the sub area Leave blank and also leave the Sub Area Weighted Curve Number blank if the area will be accumulated from the Detailed Land Area data records See Figure 3 28 Enter Sub Area Weighted Curve Number Weighted Runoff Curve Number from the sub area of the watershed Leave blank and also leave the Sub Area Drainage Area blank if the weighted curve number will be computed from the Detailed Land Area data records See Figure 3 30 Enter Sub Area Time of Concentration Time for runoff to travel from the hydraulically most distant point in the sub area to the sub area outlet Leave blank if the value will be computed from the detailed Sheet Shallow and Channel record
136. t Flow Manning n Roughness coefficient n to use with sheet flow path for the sub area Leave blank if Sheet Flow Surface is entered If blank and Sheet Flow Surface is also blank the default value to 0 15 Note that these are significantly greater values than those used for open channel flow e Select the Sheet Flow Surface Code representing the sheet flow path surface with the acceptable pull down values Leave blank if Sheet Flow Manning n is entered 40 Revision Date July 23 2004 WinTR 20 User Guide Sheet Flow Surface Code Values A Smooth Surface 0 011 B Fallow no residue 0 05 C Cultivated lt 20 residue 0 06 D Cultivated gt 20 residue 0 17 E Grass Range Short 0 15 F Grass Dense 0 24 G Grass Bermuda 0 41 H Woods Light 0 40 I Woods Dense 0 80 J Range Natural 0 13 Enter Shallow Concentrated Flow Length Length along shallow concentrated flow path for sub area Enter Shallow Concentrated Flow Slope Slope along shallow concentrated flow path for the sub area Select Shallow Concentrated Flow Surface Code representing the shallow concentrated flow path surface with the acceptable pull down values Acceptable values are P Paved U Unpaved Enter Channel Flow Length Length along the channel flow path for sub area Enter Channel Flow Slope Slope along the channel flow path for sub area Leave blan
137. t up of the simplest type of model a single watershed without reaches Times of concentration T and Runoff Curve Numbers RCN will be determined using the built in calculation option which uses basic physical data of the sub area flow lengths roughness for Tc and land use soils for RCN Entire Upstream Watershed Model Example 2 This is a model of the entire watershed upstream of the City The watershed will be comprised of 8 sub areas and 4 reaches The rating curves for the reaches were developed using HEC RAS This is considered the Present Condition Model Entire Upstream Watershed With Reservoir in Place Model Example 3 This is a model of the entire watershed upstream of the City with the proposed reservoir in place The rating curve for the structure is based on a two stage riser design This model uses Example 2 present condition as a base and adds the reservoir using the Alternatives option This example illustrates the ability of the program to make graphical and tabular comparisons of before and after scenarios within the same model Entire Upstream Watershed With Divert in Place Model Example 4 This is a model of the entire watershed upstream of the City with proposed divert in place This example will illustrate the ability to divert some flow from the main stream and redirected the flow back to the main stream farther downstream Note These examples emphasize the set up running and obtai
138. tor window select the Storm Analysis button Within the storm identifier window enter 2 yr this is just a text identifier to be used in the output Raingage Identifier can be left blank if all sub areas within the model use the same rainfall distribution which these examples do Enter 0 0 for starting time and 2 93 inches for Gage Rainfall Click on the arrow next to the Gage Rain Table Identifier window and then select Type I from the drop down menu Select the 2 average for the Gage Antecedent Runoff Condition Enter 2 93 inches for the 2 yr 24 hr Rainfall Notice that as the values are entered they show up in the table to the right This entry is only used in Tc Detail Calculations Sheet flow calculations require a 2 yr rainfall amount For models with multiple storm analysis this entry is only required on the first storm If Tc is entered directly for all sub areas Tc Details not used this 2 yr rainfall amount is not a required entry WinTR 20 User Guide 74 Revision Date July 23 2004 To enter the remaining storms simply place the cursor in the Storm Identifier window and type in the next storm identifier name 5 yr 10 yr etc Note that when you place the cursor in the Storm Identifier window the previous storm s name remains highlighted until you type in the new name and hit the carriage return After all storms have been entered the Storm Analysis window should look like Storm Anaylsis Cur
139. ub Area Window Enter or edit sub area data The sub area drainage nd runoff curve number can be entered directly or details for their computation by 3 20 can be entered by clicking on the Land Use Details button Also the time of concentration ntered directly or the details can be y clicking the Tc Details button The entry buttons are only available for s that have not had the information Ho Changes Accept Changes entered directly on this window Close Close Figure 3 29 Sub Area Window 13 To enter land use details data click on the Land Use Details button Once land use details is selected the Land Use Areas window will appear as shown in Figure 3 30 your land use areas editor will come up with blank window until you have entered the land use areas data a Enter Sub Area Identifier Unique alphanumeric string identifying the sub area name To verify that this is the sub area intended for land use detailing b Enter Land Use Area Drainage Area Drainage area associated with the land use and hydrologic soil group HSG for the sub area Click on the appropriate Land Use and Hydrologic Soil Group area box then enter the specific area sq mi if the input units selected as English in WinTR 20 main window c Enter Land Use Area Hydrologic Soil Group HSG Hydrologic Soil Group for the land use area of the sub area Acceptable values are A B C or D The user has the option of defining their own land use and as
140. unit hydrograph um Display Data Ho Changes Accept Changes Close Close Figure 3 15 Dimensionless Unit Hydrograph Window Input Output Plots BEE File Edit Help D I EI C H A R G E DIMENSIONLESS TIME alts inp Figure 3 16 Display Data Dimensionless Unit Hydrograph WinTR 20 User Guide 23 Revision Date July 23 2004 Duration Increment Data should only be entered on the Duration Increment window if Flood Economics output is desired from WinTR 20 Selecting Yes as the default reach Flood Economic file code Global Output Window or Yes or Blank as the reach Flood Economic file code Stream Reach Window will place peak flow and Duration Increment results in the Flood Economics file ecn To enter duration increment data the user clicks on Duration Increment on the data section name list Figure 3 6 Once the duration increment is clicked the Duration Increment Data Editor window will appear as shown in Figure 3 17 your alternative analysis editor will come up with a blank window until you have entered the duration increment data To generate a Flood Economic output file from the model do the following steps 1 Select the Duration Units either in Hours or Days 2 Enter the 1 Duration in hour Hit Enter 3 Enter the 2 Duration in hour Hit Enter 4 Enter the 3 Duration in hour Hit Enter J Click on Accept Changes Close for the interface to accept the data w Duration Increment Curre
141. ure 3 34 the verification editor will come up with a blank window until data has been selected The user checks the blank boxes to request a particular verification item The outputs of verification selections are printed out in the Debug file dbg WinTR 20 User Guide 43 Revision Date July 23 2004 x Verification Current File gt Untitled lt Ho Changes Accept Changes Close Close Figure 3 34 Verification Window Read Data Section Verification Tables The first 15 items on the verification window through Verfication Read refer to the reading of the data by the program The output echoes the input and can be used as a check for data correctness There are a few items to be aware of that may be different from what was actually entered If metric data was entered values will be expressed as English equivalents as all data are saved within WinTR 20 in English units For input fields that were left blank some may show the default for the field 1f one exists or it may show as a 999 in the table indicating that a blank was interpreted for this field Also some blank fields may show as 999 indicating that the value entered was a blank The data are listed by using the data section names as headers If the read box is checked in the Verification window and there is no entry for a particular data section that section is not listed in the debug file WinTR 20 User Guide 44 Revision Date July 23 2004 Table 3 2 Verif
142. ure 3 38 WinTR 20 Error File See Figure 3 40 WinTR 20 Debug File See Figure 3 41 WinTR 20 Hydrograph See Figure 3 42 and WinTR 20 FloodEcon File See Figure 3 43 The user then clicks on Close to close the Win TR 20 Printed Page File Window WinTR 20 User Guide 50 Revision Date July 23 2004 File Display Current File C Quan la SWA_2S_cn50 out E J 0 2 S vs Ia 0 05 S comparison Hendricks County Indiana off peak for Ia 0 2 S CN 50 1 yr to 100 yr storms Name of printed page file C XQuanXIa SMIA 28 cn50 out STORH i yr Elevation Location i t i 2 3 4 5 5 8 9 HOM P9 M OM OI ON ON ON ON ON TP OR PRO NM HD PO NH OM OM OM ne Print View Send to Printer Input File Printed Page File Error File Debug File Hydrograph FloodEcon File Figure 3 38 WinTR 20 Printed Page File WinTR 20 User Guide 51 Revision Date July 23 2004 WinTR 20 User Guide File Display Current File C TR20_Beta_Test DataSets 3rch_5stm_raintbLinp inTR 20 Version 1 0 o o o Watershed with 2 subareas added routed through 2 reaches 2 more subareas added routed through a reach and 1 subarea added A raintable is input SUB AREA Area Area Area Area Area STREAH REACH Reach 1 Reach 2 Xsec 22 Reach 2 Reach 3 Xsec 13 Reach 3 OUTLET Xsec 10 STORH ANALYSIS Stom Stom Stomm Stom Stomm Figure 3 39 WinTR 20 Input File Window File Display Current File C TR20_Beta_Test DataSet
143. using the drop down window next to the Reach box select R01 then hit enter You ll notice that Upstream and Downstream options show up to the right Select both options Notice that the RO1 Upstream and RO1 Downstream show up in the Multiple Location window Selecting Display should bring up a screen that looks like WinTR 20 User Guide 97 Revision Date July 23 2004 Input Output Plots File Edit Help Hydrograph Storm 10 yr R01 Upstream X R01 Downstream D l S C H A R G E TIME hr Figure 4 26 Notice that there appears to be very little attenuation of the peak discharge from upstream to downstream of reach ROL The peak is translated in time approximately 1 hour Example Problem 3 below will demonstrate how to view multiple alternatives on the same plot i e with and without a reservoir just upstream from the city WinTR 20 User Guide 98 Revision Date July 23 2004 Example 3 Alternative Adding An Upstream Reservoir For this example we will utilize the Alternate option within WinTR 20 to model the effects of an upstream reservoir on peak flows Using Alternate Analysis allows the user to run and compare results of a before and after scenario within the same model The advantage to this rather than having two separate models is that graphical and tabular comparisons can be made from a singular output The proposed structure site is l
144. y Code NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED Converter Usage Identify record type Identify record type Identify record type Blank PROCEDURE 1 New Stream Reach Constant Base Flow NOT USED Triangular Base Flow Triangular Peak Time PROCEDURE 2 NOT USED NOT USED Triangular Peak Time Variable NOT USED Converter Usage Data Code INCREM Operation Code Main Time Increment Identify record type Identify record type Identify record type New Global Output Data Hydrograph Display Time Increment Can only use one if multiple Main Time Increments in job smallest is used Converter Usage rom Section ID rom Structure ID tart Time Rainfall Duration Alternate Number torm Number Variable Data Code Rainfall Duration Alternate Number Identify record type Identify record type Identify record type NOT USED NOT USED NOT USED NOT USED New Storm Analysis Gage Starting Time New Storm Analysis Gage Rainfall Used to modify Rain Distribution Rain Table Time Increment Used as part of Storm analysis Rain Gage Identifier New Storm Analysis Gage Antecedent Runoff Condition Used as part of Alternate Analysis Alternate Identifier Used as part of Storm Analysis Storm Identifier 140 Revision Date July 23 2004 INSERT Variable Converter Usage Data Code Identify record type From Section ID
145. y run again with the substituted line Knowing the structure of the input file and how WinTR 20 interprets input data is useful to advanced users who wish to simply manipulate the ASCII input files when creating new or altering existing models To run the model along with the alternative simply select Run from the main menu When the WinTR 20 Printed Page File window pops up scroll down to the peak WinTR 20 User Guide 102 Revision Date July 23 2004 discharge summary table at the end The 100 year storm portion of the summary should look like File Display Current File C WinTR20 Manuals Wata_Examples ex 3 out SE Brea or Drainage Reach Area Alternate Identifier sq mi fefs cfs cfs 79 9 9 9 b 4 6 5 4 4 8 5 0 oe 9 0 ao py Figure 4 31 Note that comparisons between with and without the structure can be made from the same output The results from the original present conditions run are along the line that has a blank under the alternate column The reservoir run results are on the line containing with res under the alternate column Recall that the with res is the identifier that the user defined within the identifier box in the alternate analysis window From the output one can see that the reservoir reduces peak discharge from the 100 year event from 2 135 cfs down to 138 cfs At the point just upstream of the city at the Outlet point of the model the reservoir
146. ystem do not exist at this time and which are not covered in this manual TR 20 System Controller Editor H ub E HEC RAS TR 20 Reformatter DM Converter TR 20 GIS Input Generator Partial Legend Outside Project Scope DataFlow Future i Development Program Flow i vui me Graphics Output Flood Economics Figure 1 1 WinTR 20 System Diagram WinTR 20 User Guide 8 Revision Date July 23 2004 1 4 Capabilities and Limitations WinTR 20 model is a storm event surface water hydrologic model applied at a watershed scale that meets these criteria Table 1 1 WinTR 20 Capabilities and Limitations Variable Limits Types of reaches Channel or Structure Channel Manning n 005 1 00 Reach Routing Muskingum Cunge Sheet Flow Maximum Length 100 feet Sheet Flow Manning n 005 1 00 Hydrograph Distribution Increment gt 01 cfs Runoff Curve Number 30 100 Weighted Curve Number 30 100 Features of old program that is no longer supported 1 Capabilities associated with IPEAKS and PEAKS IPEAKS was used in conjunction with the modified Att Kin channel routing where reach lengths were made as long as possible not available with the present WinTR 20 model PEAKS was used to obtain peak discharge values at intermediate points between cross sections and or structures Reach length is less important with the Muskingum Cunge reach r

TR-20 User Manual - NRCS Irrigation ToolBox

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