Prototype Evaluation of Selective Withdrawal System, Taylorsville Dam, Salt River, Kentucky
McGee, R. G. | Howington, S. E.
Prototype tests were conducted during 11-14 August 1986 at Taylorsville Dam, Kentucky, to evaluate the performance of the project's selective withdrawal system. Taylorsville Dam is located on the Salt River in north-central Kentucky 50 miles above the confluence with the Ohio River. The existing project consists of a rock-filled dam, uncontrolled spillway, and controlled outlet works. Reservoir releases are regulated by a gated intake tower consisting of two flood-control intakes at the base of the structure and two wet wells with five 6- by 6-ft water-quality intakes in each wet well. All flows pass through two separate 5.5- by 14.75-ft rectangular passages transitioning into a single 11.5- by 14.75-ft oblong conduit. The primary purpose of the prototype measurement program was to obtain prototype information on the performance of the selective withdrawal system. The data are used to determine the reservoir withdrawal zone characteristics, intake tower blending characteristics, the occurrence of density blockage, the degree of mixing of different water qualities, and the amount of dissolved oxygen uptake. Results were also used to compare prototype performance with both physical and numerical model predictions. The basic measurements included dissolved oxygen and temperature profiles in the reservoir, at locations within the outlet works, and at one station in the downstream channel. Two-directional intake velocity profiles were measured for each port and total discharge was measured in the downstream channel.-N,-. Density blockage, Multilevel intake, Dissolved oxygen, Prototype tests, Model-prototype correlation, Reaeration, Selective withdrawal, Velocity profiles, Water quality.Show more [+] Less [-]