Chickamauga Lock Road Improvements and Relocation

CHATTANOOGA, TN

New roadway allows for new Lock on Tennessee River

Neel-Schaffer provided roadway design, structural design, survey, geotechnical investigations, specifications, and MCACES cost estimates for the realignment of roadways in conjunction with the replacement of the Chickamauga Lock on the Tennessee River near Chattanooga.

The Lock was deteriorating, and replacement required realignment of the existing adjacent roadways. Neel-Schaffer was selected by the U.S. Army Corps of Engineers-Nashville District through a two-year indefinite delivery contract to design the relocations to the local street network and to assist during construction of the improvements.

The $6 million project included two bridges, two roundabouts, retaining walls, and approximately 2,350 linear feet of roadway. The project was designed with two roundabouts requested by the City of Chattanooga, and included context sensitive design principles related to Hixson Greenway and Park adjacent to the project.

Neel-Schaffer worked closely with a geotechnical subconsultant to provide geotechnical engineering services that included settlement and slope stability analyses based on the use of soil and shot rock fill. Under this contract, a “wick drain” system was developed to overcome settlement problems associated with deep fills in the area east of North Chickamauga Creek.

The project also included the use of SpecsIntact for preparation of specifications and Dr. Checks for plans and document review. Neel-Schaffer also provided engineering support during construction.

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