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Table Of Contents
Chapter 5 Working with Hydrology Commands
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To specify a composite runoff coefficient
1 From the Rational Method dialog box, click CmpCoef to display the Composite
Runoff Coefficient Calculator dialog box.
2 You can change the composite runoff coefficient settings by specifying the
following settings:
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Description: Enter a descriptive title in this column.
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Area: Enter the area value in this column, or click Select to either select an
area or define an area in the drawing.
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Coefficient: Enter a coefficient value in this column, or click Select to choose
a coefficient.
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Total Area: Displays the calculated total area.
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Weighted Coefficient: Displays the calculated weighted coefficient.
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Delete: Removes the selected row.
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Insert: Inserts a new row above the selected row.
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Output: Displays the data in a text editor. From here, you can print the data
to a file or printer.
3 Click OK to save the composite coefficient settings and exit the dialog box.