CE310 Water Resources Engineering HW-7 Due: Layout of a storm sewer system is shown in figure. The sewer BE will be desi

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Ce310 Water Resources Engineering Hw 7 Due Layout Of A Storm Sewer System Is Shown In Figure The Sewer Be Will Be Desi 1 (145.16 KiB) Viewed 9 times

CE310 Water Resources Engineering HW-7 Due: Layout of a storm sewer system is shown in figure. The sewer BE will be designed for a storm having a return period of T= 100 years. Inlet times for all areas are accepted to be 10 minutes. The maximum allowable velocity in sewers is 4 m/s. The flow time between two successive manholes can be taken as 2 minutes. Take variable Manning's roughness coefficient with N=0.016. Street slope of BE is 2%. Commercial pipes are available at every 25 mm increments of diameters. Rainfall intensity for the project area can be determined from the following relation, i = 90(T,/t.)0.5 where T, is the return period in years, t, is the total time of concentration in minutes and i is the rainfall intensity in mm/hr. (1) 0-0.5 0.4 km? (2) C-0.4 0.0015 km C-0.35 0.01 km (5) C-0.30 0,01 km (3) C-0.55 0.02 km B 0-0.5 0.01 km (7) 0-0.4 0.002 km (8) C=0.7 0.02 km (9) 0-0.4 0.001 km