Mercer County to begin Locust Lane bridge replacement project in Princeton Aug. 2

The bridge over Harry’s Brook on Locust Lane in Princeton.

The Locust Lane bridge over Harry’s Brook in Princeton will be replaced by Mercer County. The project will begin on Aug. 2 and is expected to take 150 days to complete.

Officially known as Bridge No. 364.15, the structure is located on Locust Lane off Route 27, which is also known as Princeton-Kingston Road. During construction, the bridge will be staged and open to traffic.

The existing bridge carrying Locust Lane over Harry’s Brook is a non-composite adjacent box beam bridge. The structure is considered structurally deficient due to the poor condition of the superstructure and is also considered functionally obsolete due to inadequate deck geometry. The reconstructed bridge will be a single-span structure supported on full-height concrete abutments. The superstructure will consist of steel-welded plate girders with a composite reinforced concrete deck. The substructure will be full-height reinforced concrete abutments founded on cast-in-place footings. The structure will have cast-in-place reinforced concrete approach slabs. The proposed roadway cross-section at the bridge will consist of two 15-foot travel lanes and one 5-foot sidewalk.

Colonelli Brothers Inc. of Hackensack is the contractor for the project. Colonelli submitted the lowest bid price of $997,000 for the project and has completed similar projects in Mercer County. The contract was approved by the Mercer County Board of Commissioners in January.