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Kentucky River Dam #3

Location: Gest, Kentucky
Owner: Kentucky River Authority
General Contractor: Brayman Construction Corp.
Value: $13.8 Million
Date Complete: November 2011

Originally built from 1836-1842 to support a 23-mile long pool of water, Lock #3 was constructed of a timber crib structure. This structure consisted of an outside frame of timbers filled with dirt and rock while the original lock was stone masonry. Lock #3 was shut down in 2007 due to mechanical and structural problems.

Brayman Construction was contracted to perform modifications to the existing overflow spillway. Project details include the installation of 8, 50' diameter sheet pile cells; 7 closure cells; 5, 54" caissons; 5 soldier piles and various modifications to the lock chamber wall and landside abutment.

Excavation of the river bed was performed using a combination of dredging, air lifting and diver-assisted activities. Over 1,300lf of sheet piling was installed. 11,000cy of tremie concrete was positioned in a total of 10 placements. De-watering of sheet pile cells was performed for installation of rebar and mass concrete. All activities were controlled by an erosion-control plan to minimize soil erosion and runoff into the Kentucky River.