WinTR-20 Advanced Features June 20151

WinTR-20 Project Formulation Hydrology

Computer Program

Advanced Features

Presented by: WinTR-20 Development Team

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Seven Features

Local Land Use and Local Soil DataCurve Number Adjustment/ReductionTime of Concentration DetailsDiversionsDimensionless Unit Hydrograph (DUH)Custom Rain TableInput Hydrograph

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Local Land Use

Open WinTR-20.Open New WinTR-20 file.Provide a watershed description and Accept.Enter Local Land Use.

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Local Land UseClick File and Local Land Use

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Local Land Use

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Local Land Use

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Local Land Use

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Local Land Use

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Local Soil Data

Open WinTR-20.Open New WinTR-20 file.Provide a watershed description and Accept.Enter Local Soil and/or Hydrologic Soil

Groups (HSG).

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Local Soil Data

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Local Soil Data

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Local Soil Data

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Local Soil Data

Data will be saved for future WinTR-20 sessions.

Curve Number Adjustment / Reduction

Open Sub-Area window.Enter Sub-Area Identifier.Enter Sub-Area Reach Identifier.Enter Sub-Area Drainage Area.Enter Sub-Area Weighted Curve Number.Either Enter CN Adjustment (Based on

ARC).Or Enter CN Reduction.

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Curve Number Adjustment

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Curve Number Reduction

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Time of Concentration (Tc) Details

Open Sub-Area: window.Enter Sub-Area Identifier.Click Tc Velocity Method.Click Tc Lag Method.

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Tc Details

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Tc Velocity Method

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Tc Velocity Method

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Tc Velocity Method

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Tc Velocity Method

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Tc Velocity Method

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Tc Velocity Method

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Tc Lag Method

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Tc Lag Method

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Tc Lag Method

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Tc Lag Method

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Diversion optionsDivert flow over a certain value.Divide flow based on two rating curves.Send diverted flow outside the watershed.Send the diverted flow to another stream

reach.

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Diversions

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Diversions

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Diversions

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Diversions

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Diversions

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Diversions

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Dim Unit Hydrograph

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Dim Unit Hydrograph

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Dim Unit Hydrograph

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Dim Unit Hydrograph

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Dim Unit Hydrograph

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Dim Unit Hydrograph

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Dim Unit Hydrograph

DUH’s with peak rate factors are available for values of 100 to 600 at an interval of 50.

These are included in the revised Chapter 16 of NEH – Hydrology.

An example is shown next.

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Dim Unit Hydrograph

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Dim Unit Hydrograph

These may be copied and pasted into the WinTR-20 data file using Notepad or a similar text editor.

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Custom Rain Table

WinTR-20 has 32 standard rainfall distribution tables available for selection.

These include the commonly used Type II and Type III.

To enter a custom rainfall table, open the Rainfall Distribution data window.

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Custom Rain Table

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Custom Rain Table

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Custom Rain Table

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Custom Rain Table

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Custom Rain Table

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Custom Rain Table

More than one rainfall table may be entered.

To transport rainfall tables from one WinTR-20 data file to another, use Notepad to copy and paste.

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Input Hydrograph

A hydrograph coming from another source may be inserted into the stream network.

The hydrograph may be coming in from a neighboring watershed.

The hydrograph may have been developed by another procedure such a dam break hydrograph.

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

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Input Hydrograph

After selecting the Hydrograph Output file close WinTR-20.

Rename the Hydrograph Output file to a different name and change extension to .inp

Open WinTR-20, open Existing Input File and select the file with Hydrograph Output.

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Input Hydrograph

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Input Hydrograph

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The End