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BCCMP Manning's n

BCCMP Manning's n

BCCMP Manning's n

(OP)
Could anyone tell me what they use for Bituminous Coated Corrugated Metal Pipe (BCCMP) manning's n value?  Please include your reference if you have one handy.  Thank you much.

RE: BCCMP Manning's n

Call the manufacturer.

RE: BCCMP Manning's n

same as regular CMP - generally accepted as 0.024

RE: BCCMP Manning's n

Depends if it's spiral or annular.

RE: BCCMP Manning's n

If the corrugations on the invert are filled, you can use .021.

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

RE: BCCMP Manning's n

(OP)
cvg or dicksewerrat.... do you happen to have any widely used reference manual for this information?  My bently stormwater manual does not show BCCMP.  I appreciate the responses.

RE: BCCMP Manning's n

just use your reference for normal cmp.  the coating does not have a significant effect on the roughness

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