WinTR55 Small Watershed Hydrology

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WinTR-55 Small Watershed Hydrology
WinTR-55 Development Team
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Common Hydrology of Urbanization
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WinTR-55
DOS
Windows
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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 ltTc lt 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

• Watershedsystem 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
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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-55Return to WinTR55
• New user help
• Skip welcome screen

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WinTR-55 Main Window

• Input basic project data
• Menu
• Buttons
• Input boxes

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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
• gt 10 reaches
• complex channel or storage routing

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Reach Data Entry

• Unique Reach Name (lt 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 ratingPlot
• Line width color-Options

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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 doesnt
  change Storm Data!
• Set/edit Storm Data each run!

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Watersheds Outside US

• State and County becomeRegion 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

• Run on the WinTR-55 Main Window menu orRun
  button
• Check storm(s) to evaluate
• Click Run button
• Run not available for incomplete data

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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 runOutput 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/HH/Tools_Mo
  dels/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