# Presentation: 712902

## WinTR-55  Small Watershed Hydrology

-  WinTR-55 Development Team

## Common Hydrology of Urbanization

- TR-55 Update

## WinTR-55 

**DOS**

- Windows

- TR-55 Update

## Tutorial

- Demonstrate WinTR-55
- Create WinTR-55 Input File
- Run WinTR-55
- View WinTR-55 Output

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## WinTR-55 Capabilities & Limitations

**Maximum Area****	****25 square miles **
**Watersheds****	****1-10**
**Tc ****	****0.1 hour <Tc < 10 hours**
**Reaches****	****0-10**
**Reach Types****	****Channel or Structure**
**Reach Routing****	****Muskingum-Cunge**
**Structure Routing****	****Storage-Indication**
**Structure Types****	****Pipe or Weir**
**Structure Sizes****	****1-3**

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## Capabilities & Limitations

**Rainfall Depth****	****Default or user-defined ****	****0-50 inches ****(0-1,270 mm)**
**Rainfall Distributions ****	****NRCS Type I/IA/II/III ****	****	*****or***** ****	****user-defined**
**Rainfall Duration****	****24-hour**
**Dimensionless Unit****	****Standard peak rate ****Hydrograph****	****484 *****or***** user-defined**
**Antecedent Runoff ****	****2 (average)**** Condition**

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## Minimum Data Requirements

- Single sub-area run data
-  WinTR-55 Main Window
- Project Identification Data
- User, Project, Subtitle, State & County
- Sub-areas are expressed in:
- Acres or Square Miles
- Dimensionless Unit Hydrograph
- Rainfall Storm Data
- Sub-area Data (Name, flows to reach/outlet, area, weighted curve number, & time of concentration)

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## WinTR-55 Sub-area/Reach Concepts

**Watershed**:system of sub-areas and reaches
**Sub-areas**: hydrograph-generating areas
**Sub-areas** -flow into upstream end of stream reach

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## WinTR-55 Sub-area/Reach Concepts

- Reaches - represent watershed stream flow paths
- Reaches or Routing Elements - 2 types
_**Channel**_ routing elements - Stream Reach
_**Storage**_ routing elements - Reservoir/Structure Reach
- “Outlet” -final reach*(required for all watersheds)*

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## Watershed  Example 

- Watershed  Example

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## Sub-area Data

- Drainage Area
- Runoff Curve Number (RCN)  Data
- Time of Concentration (Tc)  Data
- Channel Reach Data
- Structure Reach Data
- Design Storm Amounts and Distribution
***NOTE: RCN and Tc may be directly entered on WinTR-55 Main Window***

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## Getting Started- Welcome to WinTR-55 Window

- Start WinTR-55“Return to WinTR55”
- New user help
- Skip welcome screen

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## Input basic project data
Menu
Buttons
Input boxes

- Input basic project data
- Menu
- Buttons
- Input boxes

- WinTR-55 Main Window

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## Help

- Display introduction
- Help for the Main Window
- System information
- Program version number and date

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## WinTR-55 Main Window

- New project “File - New”

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## Units

- English or
-  Metric

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## Main Window-Data Entry

- Project Identification Data (User, Project, etc.)
- Choose area units
- square mile or acres
- square km or  hectares
- Select Dimensionless Unit Hydrograph
- Input known project data in the “Sub-area Entry and Summary”
- Tc & RCN - direct input

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## Project Data

- Project Data menu
- Land Use Details
- Time of Concentration
- Structure Data
- Reach Data
- Buttons
- Double-click title blocks in grid

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## Land Use Details

- Go to land use
- right vertical scrollbar
- Land Use Category radio button
- Area in hydrologic soil column
- Maximum 15 land uses per subarea

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## Land Use Details

-  Weighted CN
- Accumulated sub-area area

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## Land Use Summary

- Convenient summary
- Display current subarea
- Summary toggle

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## Custom Curve Number

- Create Custom CN
- Pervious curve number
- % Impervious area
- % Impervious area unconnected

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## Time of Concentration Details

- Enter sub-area flow path segment data
- 5 flow segments: 1-sheet flow 2-shallow concentrated2-channel flow
- Displays total flow path length
- Displays average flow velocity

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## Reach Data Entry

- Edit stream network
- Channel reach or storage (structure) reach
- Create channel reach rating table
- Use another model *(e.g. NRCS WinTR-20)* when:
- > 10 reaches
- complex channel or storage routing

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## Reach Data Entry

- Unique “Reach Name” (< 10 characters)
- Downstream “Receiving Reach”
**Channels** - channel data
**Structure** -
- Enter structure name
- Go to Structure Data Window (Double-click *Name*)

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## Reach Data Plot

- Graphical channel rating“Plot”
- Line width & color-”Options”

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##  View Reach Data

-  View Reach Data

- schematic “Reach Flow Path”
- Detail toggle

- All Details

- Overview

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## Structure Data

- Name
- Surface area
- Outlet type & size
- Structure name correspond to Reach Window name
- 1-3 sizes/trials
- Complex ratings--use another model *(e.g.WinTR-20 or Sites)*

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## Global Data - Main Window

- Storm Data-rainfall depths*(how much did it rain?)*
- Custom Rainfall Distributions-*(how was the rain distributed during the storm?)*
- Dimensionless Unit Hydrograph*-(What shape is the hydrograph?)*

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## Storm Data

- NRCS-supplied rainfall depths and distributions for the US states and counties
- Edit rainfall depths
- Design rainfall distribution
- “Accept” to exit window
- Changing State-County on  Main Window doesn’t change Storm Data!
- Set/edit Storm Data each run!

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## Watersheds Outside US

- “State” and “County” become“**Region**” and “**Locale**”
- No NRCS-supplied rainfall data
- Must enter rainfall depths and pick distribution

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## Custom Rainfall Distributions

- New distribution
- WinTR-55 Main Window “GlobalData” menu “Custom Rainfall Distribution”	or  “Custom Rainfall Distribution” button
- Rename/delete distribution
- Enter dimensionless distribution(increase from 0.00000 to 1.00000)
- Displays time increment and number of points

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## Rainfall Distributions Plot

- “Plot” current rainfall distribution
- One distribution plot(no comparisons)
- Options for line width and color

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## Dimensionless Unit Hydrographs

- New dimensionless unit hydrograph
- Rename/delete
- Values increase from 0-1,then decrease 1-0
- Number of points displayed
*Standard NRCS dimensionless unit hydrographs in WinTR-55 may not be edited or deleted*

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## Dimensionless Unit Hydrograph Plot

- “Plot” button on the Dimensionless Unit Hydrographs window
- Options for line width and color
- Single DUH(no multiple DUH plots)

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## ”Run” on the WinTR-55 Main Window menu or“Run” button
Check storm(s) to evaluate
Click “Run” button
“Run” not available for incomplete data

- Check storm(s) to evaluate
- Click “Run” button
- “Run” not available for incomplete data

- Run

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## Viewing Output

- File Display window opens after WinTR-55 run
- Also “Report View”
- Various WinTR-55 reports
- Errors during run - “Error File” window opens
- Error messages “View - Error File”

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## Output Definition

- Complete data for a run“Output Definition” button available *(WinTR-55 Main Window)*
- Check output report
- Print to printer
- View on-screen

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## Possible Reports

- Current data description
- Storm Data
- Watershed Peak Table
- Hydrograph Peak/Peak Time Table
- Structure Output Table
- Reach Summary Table
- Sub-Area Time of Concentration Details
- Sub-Area Land Use and Curve Number Details
- Reach Channel Rating Details
- Structure Rating Details

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## Other Reports

- File Display window (report viewer)
- Input file
- WinTR-20 Printed Page file(tabular hydrograph)
- Error file
- Debug file

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## Plotting and Viewing Hydrographs

- Click Hydrographs button(Main WinTR-55 Window)
- Select _Sub-areas_ or _Reaches_
- Check desired subareas or desired reaches
- Check storm event
- Check alternatives
- Reaches - upstreamor downstream end

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## Graphics Window

- Click “Plot” on the Output Graphics window to plot selected hydrographs
- Line width and color options
- Print to printer
- 	 or
- Save bitmap image

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## Summary

- Demonstrated WinTR-55
- Created WinTR-55 Input File
- Ran WinTR-55
- Viewed WinTR-55 Output

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## WinTR-55 Web Site	

- Download latest WinTR-55 version
- http://wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/WinTR55.html
- Update notes
- WinTR-55 User Manual
- WinTR-55 Support Team e-mail address
- 		ug-orportlan-4-TR55

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## Development Team

- Claudia Hoeft		NRCS, Washington DC
- Laurel Foreman		NRCS, Iowa
- William Merkel		NRCS-WNTSC, Maryland
- Helen Fox Moody		NRCS-WNTSC, Maryland
- Quan D. Quan		NRCS-WNTSC, Maryland
- Ralph Roberts		ARS, Maryland
- John McClung		NRCS-NWMC, Arkansas
- Al McNeill			NRCS, South Carolina
- Jolyne Lee			NRCS-NWCC, Oregon
- Don Woodward		NRCS-retired
- Jon Werner			NRCS-retired
- Roger Cronshey		NRCS-retired

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- End

- USDA-NRCS

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