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Engineering · Civil Engineering
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A semicircle, precast concrete culvert with a radius of 3ft flows full with a discharge of 150 ft^3/s. what is the friction head loss in 200ft using the manning equation?


8. A semicircular, precast concrete culvert with a radius of 3 ft flows full with a discharge of 150 cfs (ft/s). What is the friction head loss in 200 ft using Mannings equation? Can you verify your results with computer software?
TABLE 3.3 Mannings Roughness Coefficient, n, for Pipe Flows Type of Pipe Mannings n Min. Max Brass Cast iron Cement mortar surfaces Cement rubble surfaces Clay drainage tile Concrete, precast Copper Corrugated metal (CMP) Ductile iron (cement mortar lined) Glass High-density polyethylene (HDPE) Polyvinyl chloride (PVC) Steel, commercial Steel, riveted Vitrified sewer pipe Wrought iron 0.009 0.011 0.011 0.017 0.011 0.011 0.009 0.020 0.011 0.009 0.009 0.009 0.010 0.017 0.010 0.012 0.013 0.015 0.015 0.030 0.017 0.015 0.013 0.024 0.013 0.013 0.011 0.011 0.012 0.020 0.017 0.017
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