Route US 206, Replacement of the Historic Stone Arch Bridge Over Stony Brook

As a prime consultant Arora provided design services to rehabilitate this historic stone arch structure. triggered by a partial collapse of the downstream parapet and spandrel wall, the project consists of the rehabilitation of the Route 206 Historic Arch Structure over Stony Brook, the replacement of the adjacent Route 206 Bridge over the Stony Brook Flood Channel and a long-term stabilization plan for the adjacent Worth’s Mill Ruin.  Located within the historic districts of the Princeton Battlefield / Stony Brook Settlement Village and the Kings Highway Districts, the Arch Structure over Stony Brook is a three-span masonry arch structure and is the oldest highway bridge in use in New Jersey, originally constructed in 1792 and widened in 1916.  Rehabilitation of the arch structure consisted of removing the fill above the arches, removing and rebuilding out-of-plumb walls with the same stone using a lime-based mortar, and constructing reinforced concrete saddles and walls within the roadway fill to strengthen the structure.   Several detours were set in place requiring the analysis of the existing traffic signals along the detour routes to accommodate the increased detoured traffic on state and nearby county roadways. Arora prepared a soil exploration and lab testing program and prepared a contract for advertising for the soil boring contractor. Arora executed the field inspection and prepared soil boring logs through a drilling contract. Arora tabulated the results of the soil borings and prepared a Geotechnical Recommendation Report for the project.  The final design was on an accelerated schedule and was completed early and within budget.