The Detention Design Module is a single Microsoft Excel file that includes individual tools for pond and detention facility design.  Click on the below links to check them out.

Automated TR-55 RCN & Time of Concentration

Stage/Storage with automatic interpolation

Riser / Barrel Hydraulics

Emergency Spillway Design

Multiple Weir Design

Trapezoidal Channel Analysis

Riser Base Design

Anti-Seep Collar Design

Extended Detention Analysis - Draw-down Method

Extended Detention Analysis - Hydrograph Lag

First Flush Discharge Computations

Offline Diversion Structure Hydraulic Design

The Detention Module can reduce time devoted to repetitive computational tasks required for every pond design.

All computations are fully referenced on the output.  No more guess-work or wondering what equations were used.

Click here to download a FREE Trial Version