Detention Pond Routing by the Storage Indication Method

Title: Detention Pond Routing by the Storage Indication Method

Contributor: Harlan Bengtson Ph.D., P.E. , Former Dean of Engineering, Southern Illinois University Edwardsville

Published Date: 2-Jul-2014

Content Type: Spreadsheet

Description:

This set of worksheets automates preparation of an outflow hydrograph from a detention pond based on user-provided information about the inflow hydrograph, the stage-storage relationship, and the outflow control device used for the detention pond.

There are worksheets for the following types of outflow control:

1. Rectangular sharp-crested weir

2. Orifice

3. Broad-crested weir

4. Pipe outlet

5. Two-stage, orifice-standpipe outlet

6. Two-stage, pipe-sharp-crested weir outlet

There is also a worksheet that prepares a stage-storage table for a detention pond based on user input information about the pond configuration and size, and a worksheet that prepares a composite inflow hydrograph from up to five user input inflow hydrographs.