An existing 36-inch diameter concrete sewer installed on a slope of 0.25% currently conveys a peak flow rate of 12 cfs. A new housing development with a projected peak flow

rate of 4 cfs is proposed to be connected to this existing sewer. Calculate the following - state all assumptions and show all work a) Depth of flow in sewer before new development is connected b) Depth of flow in sewer after new development is connected c) Flow velocity in sewer after new development is connected d) Specify diameter of a sewer to convey 16 cfs if maximum allowable D/d is 0.60 (assume same 0.25% slope)