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PMF

PMF

(OP)
Is anybody familiar with a method of calculating the probable maximum flood? It's a dam site in New York State, Putnam County. I was able to locate a "rule of thumb" procedure used in the past (30-40 years ago) in the ACOE Phase 1 dam evaluations but I'm not sure if it's still valid. I will appreciate any help.  

RE: PMF

The COE is going to be one of your best resources.  The only problem I found with their PMF process is that their guidelines are for basins larger that 10 sq miles.  


I always like to look at a couple of different methods and hope they have similiar results.  In your hydro model, you can plug in your PMP rainfall to come up with the PMF.  PMP rainfall amounts are available from the NOAA website.

 

Robert Billings
www.newrivereng.com
 

RE: PMF

Suggest you contact your state dam safety department and ask for their help. If it is a regulated dam, they will be the ones to issue your permit and approve your method.


http://www.dec.ny.gov/lands/4991.html

NY State Dept. of Environmental Conservation
Bureau of Program Resources and Flood Protection
Dam Safety Section
625 Broadway
Albany, NY 12233-3507
Phone: 518/402-8130
Fax:   518/402-9029

 

RE: PMF

(OP)
Thank you for the answers.

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