Accession Number : ADA251369

Title :   Effectiveness of Contraction Training Dikes at Charleston Harbor, Charleston, South Carolina.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB

Personal Author(s) : Teeter, Allen M. ; Pankow, Walter ; Heltzel, Samuel B. ; Knowles, Stephen C.

Report Date : APR 1992

Pagination or Media Count : 128

Abstract : Charleston Harbor is formed by the junction of the Ashley, Wando, and Cooper Rivers. Prior to 1940, the three rivers had an average freshwater inflow of about 415 cfs (Ashley, 261 cfs; Wando, 82 cfs; and Cooper, 72 cfs). In 1942, the Santee-Cooper Hydroelectric Project was completed, and the flow from the Santee River was diverted through the Pinopolis Power Plant into the west branch of the Cooper River. The average annual freshwater inflow of the Cooper River was increased from 72 cfs to about 15,000 cfs weekly average. Density currents associated with a flow-induced stratified condition changed the characteristics of the system and caused significant shoaling in the harbor. To ameliorate shoaling conditions, three contraction dikes were constructed in the Cooper River. One contraction dike was constructed on the west bank opposite the Naval Base Channel Realignment, while the other two contraction dikes were constructed on the east and west banks just south of the Contraction training dikes. Dikes, Charleston Harbor, Numerical hydrodynamic, Cooper River modeling.

Descriptors :   *DIKES, *HARBORS, CHANNELS, CONTRACTION, DENSITY, FLOW, HYDRODYNAMICS, JUNCTIONS, POWER, RIVERS, TRAINING.

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE