The Mays Landing-Somers Point Road Bridge was replaced with minimal impacts to Miry Run, a National Wild and Scenic Waterway, and summer Jersey Shore traffic.
A precast prestressed concrete arch structure, founded on concrete-filled steel pipe piles replaced a structurally deficient bridge, constructed in 1914. The stone masonry substructure of the aging bridge was severely deteriorated. Concrete form liners, which mimic the stone abutments on the original bridge, are provided on the retaining walls and parapets of the new bridge.
The roadway profile was raised to clear the 100-year flood elevation, and the bridge opening was nearly doubled. The larger span and increased clearance above the waterway allows boaters to safely use Miry Run, which is classified as a National and Scenic Waterway.
Urban also completed a hydrologic and hydraulic analysis; developed a scour design for the tidal waterway; managed aerial utility relocations; and led a public involvement program. Rather than over-excavating soft, compressible organic material, lightweight fill material was used to reduce the settlement anticipated from raising the roadway profile five feet. This approach reduced the amount of temporary sheeting and excavation required, which helped reduce construction costs.