3.consider 2 pipes and 2 inlets in fig below.Calculate peak flow handled by this system Assume, Tc at inlet 1 is 45 min and at inlet 2 is 70 min. Catchment area A=1 ha with C=0.6, and B=2 ha with C=0.4

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.