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Chickamauga Lock Replacement

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Chickamauga Lock Replacement

Shimmick is prime contractor to construct this new 110-ft by 600-ft lock chamber on the Tennessee River. The scope includes procurement and installation of a 150 CY/hr onsite batch plant and concrete conveyor system to meet the 285,000 CY requirement for structural and mass concrete.  Shimmick is excavating 9,900 CY of rock, demolishing approximately 3,600 CY of existing reinforced concrete spillway, and installing 43 reinforced concrete drilled shafts. The project also includes construction of a new operations building and gate control shelters, installation of electrical and mechanical systems to support the lock and operation building, and operation and maintenance of automated instrumentation system and dry commissioning of lock.

The conveyor system Shimmick developed delivers concrete overland and over the existing lock to prevent any disruptions to lock operations.  

Project Details

Location:Chattanooga, TN
Amount: $240M
Delivery Method:Bid-Build
Client Name:US Army Corps of Engineers
Duration: 2017-2023