WinTR-55

Small Watershed Hydrology

WinTR-55 Development

Team

04/18/23 TR-55 Update 2

Common Hydrology of Urbanization

WinTR-55

04/18/23 TR-55 Update 3

WinTR-55

DOSWindows

04/18/23 TR-55 Update 4

Tutorial

Demonstrate WinTR-55Create WinTR-55 Input FileRun WinTR-55View WinTR-55 Output

04/18/23 TR-55 Update 5

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

04/18/23 TR-55 Update 6

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

04/18/23 TR-55 Update 7

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)

04/18/23 TR-55 Update 8

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

04/18/23 TR-55 Update 9

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)

04/18/23 TR-55 Update 10

Watershed Example

Reach 2

(Reach Routing)

Reach 1(storage routing)

Storage Area

Sub-Area Inflow

Legend

Outlet

Sub-area 2

Sub-area 1

04/18/23 TR-55 Update 11

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

04/18/23 TR-55 Update 12

Getting Started- Welcome to WinTR-55 Window

Start WinTR-55“Return to WinTR55”

New user help Skip welcome

screen

04/18/23 TR-55 Update 13

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

04/18/23 TR-55 Update 15

WinTR-55 Main Window

New project “File - New”

04/18/23 TR-55 Update 16

Units

English or

Metric

04/18/23 TR-55 Update 17

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

04/18/23 TR-55 Update 18

Project Data

Project Data menu Land Use Details Time of Concentration Structure Data Reach Data

Buttons Double-click title blocks in

grid

04/18/23 TR-55 Update 19

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

04/18/23 TR-55 Update 20

Land Use Details

Weighted CN Accumulated sub-area

area

04/18/23 TR-55 Update 21

Land Use Summary

Convenient summary

Display current subarea

Summary toggle

04/18/23 TR-55 Update 22

Custom Curve Number

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

unconnected

04/18/23 TR-55 Update 23

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

04/18/23 TR-55 Update 24

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

04/18/23 TR-55 Update 25

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)

04/18/23 TR-55 Update 26

Reach Data Plot

Graphical channel rating“Plot”

Line width & color-”Options”

04/18/23 TR-55 Update 27

View Reach Data

schematic “Reach Flow Path”

Detail toggle

All Details

Overview

04/18/23 TR-55 Update 28

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)

04/18/23 TR-55 Update 29

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?)

04/18/23 TR-55 Update 30

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!

04/18/23 TR-55 Update 31

Watersheds Outside US

“State” and “County” become“Region” and “Locale”

No NRCS-supplied rainfall data

Must enter rainfall depths and pick distribution

04/18/23 TR-55 Update 32

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

04/18/23 TR-55 Update 33

Rainfall Distributions Plot

“Plot” current rainfall distribution

One distribution plot(no comparisons)

Options for line width and color

04/18/23 TR-55 Update 34

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

04/18/23 TR-55 Update 35

Dimensionless Unit Hydrograph Plot

“Plot” button on the Dimensionless Unit Hydrographs window

Options for line width and color

Single DUH(no multiple DUH plots)

04/18/23 TR-55 Update 36

”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

Run

04/18/23 TR-55 Update 37

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”

04/18/23 TR-55 Update 38

Output Definition

Complete data for a run“Output Definition” button available (WinTR-55 Main Window)

Check output report Print to printer View on-screen

04/18/23 TR-55 Update 39

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

04/18/23 TR-55 Update 40

Other Reports

File Display window (report viewer)

Input file WinTR-20 Printed

Page file(tabular hydrograph)

Error file Debug file

04/18/23 TR-55 Update 41

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 - upstream

or downstream end

04/18/23 TR-55 Update 42

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

04/18/23 TR-55 Update 43

Summary

Demonstrated WinTR-55Created WinTR-55 Input FileRan WinTR-55Viewed WinTR-55 Output

04/18/23 TR-55 Update 44

WinTR-55 Web Site

Download latest WinTR-55 versionhttp://wsi.nrcs.usda.gov/products/W2Q/H&H/

Tools_Models/WinTR55.html

Update notesWinTR-55 User Manual WinTR-55 Support Team e-mail address

ug-orportlan-4-TR55

04/18/23 TR-55 Update 45

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

04/18/23 TR-55 Update 46

EndUSDA-NRCS