For Stormwater Drain Design there are two approaches:
1. Design drain as Non-Uniform Steady Flow (Y1 > Y2)
Step for Design:
- Calculate Design Discharge for Segment of Drain.
- Calculate Capacity of Rect. Drain at Downstream Node.
- Using Manning Formulae Calculate Velocity of...
4.5 Line Sizing
4.5.1 Gravity flow piping shall be sized to maintain a minimum flow velocity of 0.9 meters per second (3 feet per second) at the peak flow rate under full flow condition. In no case, the size shall be less than the general requirement stated in para 4.2.29.
Above clause stated...