Accession Number : AD0756140

Title :   Spillway for Copan Dam, Little Caney River, Oklahoma. Hydraulic Model Investigation.

Descriptive Note : Final technical rept. Aug 67-May 68,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Fletcher,Bobby P.

Report Date : JUL 1970

Pagination or Media Count : 49

Abstract : The stilling basin for Copan Dam, which is expected to be subjected to unit discharges as large as 860 cfs, was studied on a 1:60-scale comprehensive model to conform design and performance of the proposed stilling basin and exit area. Flow conditions in the approach area and over the spillway were satisfactory. The original design stilling basin, which under design discharge conditions is subject to flow with a Froude number of 3, performed adequately. However, alternate designs were investigated and the model indicated that the length of the stilling basin could be reduced 20 ft without impairing hydraulic performance. Model tests were also conducted to investigate the adequacy of proposed riprap for protection of the exit area and the feasibility of a retaining dike or levee which paralleled the center line of the exit channel. Failure of both the exit channel protective stone and the levee occurred with design discharge conditions. However, the height of levee required to provent overtopping and the magnitude and direction of currents along the levee were determined in order that a stable levee could be provided, if desired. (Author)

Descriptors :   (*DAMS, *HYDRAULIC MODELS), MODEL TESTS, FLUID FLOW, PERFORMANCE(ENGINEERING), OKLAHOMA

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE