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AEU
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Mr. Michael Anderson, P.E., M.ASCE

AEU

Contributions

1 to 4 of 4 total
Posted By Michael Anderson 04-03-2017 12:08 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure
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I am of the same opinion as Douglas on this one. Empirical models like the NRCS (SCS) derived methods using curve numbers blow up in extreme events, larger watersheds and steep terrain and become non-translatable across watersheds and rainfall volumes, indicating to me that they are fitting the model ...
Posted By Michael Anderson 02-21-2017 12:22 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure
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I have not looked over any plans for the dam, spillway or otherwise, but it appears from the videos that there are chute blocks right below the gates creating a large hydraulic jump and lots of aeration. Similarly, this is not a particularly steep spillway. I want to see what the post-event analysis ...
Posted By Michael Anderson 02-16-2017 08:17 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure
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Indeed. Ogee type spillways including those with ski-jump style energy dissipators are resistant to the cavitation in a fairly narrow flow range. The concrete itself must resist outside of that range or, as you stated, other measures must be taken to address the concern. Usually step-type. Oroville's ...
Posted By Michael Anderson 02-15-2017 02:58 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure
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I agree with the original poster that a head-cut significant enough to fail the parapet wall would likely cause a greater loss of reservoir volume than the height of the wall. How much more is open to debate and speculation... I hope we do not find out for certain! Insofar as the dam itself, it is ...