Question

Design a detention baddin for regular service plaza ?what can be the dimension of the detention basin?

Attach picture if possible ?

Answer 1

Design of Detention Basin

Many of the design elements in a retention basin are identical to those of a dry extended detention basin. These elements include estimation of flood control storage volumes, design of a multi-stage riser, storage indication (reservoir) routing, emergency spillway design, riser buoyancy calculations, and the design of sediment forebays.

Step 1. Determine Permanent Pool Volume of the Basin as a Function of the Project Site Water Quality Volume

Step 2. Allocate the Computed Permanent Pool Volume into Regions of Varying Depth

Step 3. Estimate Total Land Area of the Retention Basin

Step 4. Development of Stage – Storage Relationship

Step 5. Design of the Submerged Release Outlet

Step 6. Embankment Design