Mannings for Ditch Liner
Mannings for Ditch Liner
(OP)
Hi, I recently read the thread about calculating the mannings roughness coefficients as I want to provide similar information on our Concrete Cloth ditch liner. Is there an agency that tests for a figure in the US. We produce this in the UK and Our US Distributor is asking for this info.





RE: Mannings for Ditch Liner
If you're interested in actually figuring out the real number, any university with a substantial fluid mechs lab could do this for you. You basically just put it in a long flume with tight controls on flowrate and flume slope, and plot depth versus flowrate and depth vs slope. Measure depth as far away from the ends of the flume as possible. (=normal depth) It's been a while, but I think we did the procedure as a lab in undergrad at Georgia Tech.
If you've got a big enough pump and a good source of free water, you could do the procedure yourself at your plant, out in the yard. Could be fun.
There may be other agencies or private corps that could help you out too. I'll be interested to see some of the other responses. If nobody points you in a better direction, shoot me an email and I'll try to track someone down at GT to talk to.
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Mannings for Ditch Liner
RE: Mannings for Ditch Liner
That concrete cloth product looks neat. Is there a US distributor in the south east?
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Mannings for Ditch Liner
Tracy Stewart & David Pedigo
Pedigo Concrete Solutions, L.L.C.
www.pedigoconcretesolutions.com
RE: Mannings for Ditch Liner
Colorado State, Dr. Steven Abt and Utah State, Dr. Bill Rahmeyer.
RE: Mannings for Ditch Liner
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Mannings for Ditch Liner
RE: Mannings for Ditch Liner
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Mannings for Ditch Liner
RE: Mannings for Ditch Liner
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