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This command calculates storage volumes for a detention pond by Linear Storage method. This method uses an inflow hydrograph and asks you to specify the peak outflow discharge from the reservoir. The program draws a straight line from the zero flow point on the hydrograph to the intersection of the specified outflow and the inflow hydrograph curve. The volume between this line and the hydrograph curve is then computed to be the storage required for the pond.
The output of this command can be applied to the Design Bench, Valley or Rectangular Pond routines. There is also an option to generate a report.
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Pulldown Menu Location: Structure > Detention Pond
Sizing > Linear Storage Method
Keyboard Command: pondstorage
Prerequisite: None