||Spillway Design Floods for Small Dams in Rural Missouri.
Harbaug, T. E. ;
Thompso, J. E. ;
||Missouri Water Resources Research Center, Columbia.
||OWRR-A-025-MO; 00626,; A-025-MO(1)
( Floods ;
( Spillways ;
Regression analysis ;
Stream flow ;
Rural areas ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
At present 1970, over 1500 small dams exist within the boundaries of the State of Missouri. Estimates indicate the number is growing at the rate of one hundred to two hundred per year. The main factor in possible failure of these existing dams is an inadequate spillway resulting from poor hydraulic practice and or lack of accurate hydrologic design information. The report presents the result of a state wide analysis of all existing hydrologic data for rural watersheds less than twenty square miles. The results are presented in nomograph form for the 25 and 50 year frequency floods. The report also contains equations for other frequencies at two accuracy levels. The results of this investigation should provide designers of spillways, culverts and bridges with the latest hydrologic flood frequency data for small rural Missouri watersheds. (Author)