Local Land Use and Local Soil DataCurve Number Adjustment/ReductionTime of Concentration DetailsDiversionsDimensionless Unit Hydrograph (DUH)Custom Rain TableInput Hydrograph
WinTR-20 Advanced Features June 2015 3
Local Land Use
Open WinTR-20.Open New WinTR-20 file.Provide a watershed description and Accept.Enter Local Land Use.
WinTR-20 Advanced Features June 20154
Local Land UseClick File and Local Land Use
WinTR-20 Advanced Features June 2015 5
Local Land Use
WinTR-20 Advanced Features June 2015 6
Local Land Use
WinTR-20 Advanced Features June 2015 7
Local Land Use
WinTR-20 Advanced Features June 2015 8
Local Land Use
WinTR-20 Advanced Features June 2015 9
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).
WinTR-20 Advanced Features June 2015 10
Local Soil Data
WinTR-20 Advanced Features June 2015 11
Local Soil Data
WinTR-20 Advanced Features June 2015 12
Local Soil Data
WinTR-20 Advanced Features June 2015 13
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.
WinTR-20 Advanced Features June 2015 14
Curve Number Adjustment
WinTR-20 Advanced Features June 2015 15
Curve Number Reduction
WinTR-20 Advanced Features June 2015 16
WinTR-20 Advanced Features June 2015 17
Time of Concentration (Tc) Details
Open Sub-Area: window.Enter Sub-Area Identifier.Click Tc Velocity Method.Click Tc Lag Method.
WinTR-20 Advanced Features June 2015 18
Tc Details
WinTR-20 Advanced Features June 2015 19
Tc Velocity Method
WinTR-20 Advanced Features June 2015 20
Tc Velocity Method
WinTR-20 Advanced Features June 2015 21
Tc Velocity Method
WinTR-20 Advanced Features June 2015 22
Tc Velocity Method
WinTR-20 Advanced Features June 2015 23
Tc Velocity Method
WinTR-20 Advanced Features June 2015 24
Tc Velocity Method
WinTR-20 Advanced Features June 2015 25
Tc Lag Method
WinTR-20 Advanced Features June 2015 26
Tc Lag Method
WinTR-20 Advanced Features June 2015 27
Tc Lag Method
WinTR-20 Advanced Features June 2015 28
Tc Lag Method
WinTR-20 Advanced Features June 2015 29
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.
WinTR-20 Advanced Features June 2015 30
Diversions
WinTR-20 Advanced Features June 2015 31
Diversions
WinTR-20 Advanced Features June 2015 32
Diversions
WinTR-20 Advanced Features June 2015 33
Diversions
WinTR-20 Advanced Features June 2015 34
Diversions
WinTR-20 Advanced Features June 2015 35
Diversions
WinTR-20 Advanced Features June 2015 36
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 37
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 38
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 39
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 40
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 41
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 42
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.
WinTR-20 Advanced Features June 2015 43
Dim Unit Hydrograph
WinTR-20 Advanced Features June 2015 44
Dim Unit Hydrograph
These may be copied and pasted into the WinTR-20 data file using Notepad or a similar text editor.
WinTR-20 Advanced Features June 2015 45
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.
WinTR-20 Advanced Features June 2015 46
Custom Rain Table
WinTR-20 Advanced Features June 2015 47
Custom Rain Table
WinTR-20 Advanced Features June 2015 48
Custom Rain Table
WinTR-20 Advanced Features June 2015 49
Custom Rain Table
WinTR-20 Advanced Features June 2015 50
Custom Rain Table
WinTR-20 Advanced Features June 2015 51
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.
WinTR-20 Advanced Features June 2015 52
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.
WinTR-20 Advanced Features June 2015 53
Input Hydrograph
WinTR-20 Advanced Features June 2015 54
Input Hydrograph
WinTR-20 Advanced Features June 2015 55
Input Hydrograph
WinTR-20 Advanced Features June 2015 56
Input Hydrograph
WinTR-20 Advanced Features June 2015 57
Input Hydrograph
WinTR-20 Advanced Features June 2015 58
Input Hydrograph
WinTR-20 Advanced Features June 2015 59
Input Hydrograph
WinTR-20 Advanced Features June 2015 60
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.