Problem 3: Culvert Roughness A culvert transmits 0.45 m/s of water from the pond at left (surface elevation 123.0 m) to the pond at right (surface elevation 122.0 m). L =25 m and D = 50 cm. The flow is steady anduniform, and the pipe is completely full. Part A Use Bernoulli's equation to calculate the friction head loss. [m] Part B What is the average velocity? [m/s] Part C Calculate Darcy-Weisbach's friction factor 2. Part D Calculate Hazen-Williams's roughness coefficient CHw. Part E Calculate Manning's n with units.

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