A water supply pipe of 36 in. diameter was installed 20 yearsago on a slope of 0

Question

A water supply pipe of 36 in. diameter was installed 20 yearsago on a slope of 0.1% with n=0.015.        a) What was the discharge capacity andvelocity at full flow at the time of installation?    b) If the pipe presently carries a flow of15 cfs when full, determine the present velocity and present        value of n. A water supply pipe of 36 in. diameter was installed 20 yearsago on a slope of 0.1% with n=0.015.        a) What was the discharge capacity andvelocity at full flow at the time of installation?    b) If the pipe presently carries a flow of15 cfs when full, determine the present velocity and present        value of n.

Explanation / Answer

a) Q capacity of 13 ft3/s b) v = 2.3 ft/s, n= 0.013

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