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Old conduits

Old conduits

Old conduits

(OP)
Hi all,

Does anybody know where to find valuable info about the roughness coefficient of aged conduits?

Especially Manning's n?

Thanks

RE: Old conduits

MSN Live Serach of "coefficient"+"old pipe"+"roughness" yields 15 results that look promising.

Engineering is the practice of the art of science - Steve

RE: Old conduits

In your old text book on open channel hydraulics

Richard A. Cornelius, P.E.
WWW.amlinereast.com

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