Spillway for Oakley Dam, Sangamon River, Illinois: Hydraulic Model Investigation.
Final rept. May 68-Jan 69,
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
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Tests of the spillway of Oakley Dam were conducted on a 160-scale model to determine flow conditions in the approach and exit channels and the performance of various elements of the structure. Particular emphasis was placed on the selection of a stilling basin that would perform satisfactorily with a Froude number 3.0 plus or minus of entering flow insufficient for ideal performance of a hydraulic-jump type basin. Approach flow conditions were generally satisfactory and no modifications to the abutments were required. Tests also indicated that stone size selected for wave protection along the upstream embankment would be sufficiently large to protect against velocities at the abutments. Author
- Civil Engineering