Park Ave Viaduct

The MTA awarded this $382M Design-Build contract to the Halmar International LLC and AECOM Design-Build team. All Metro-North Railroad trains traveling along the Hudson, Harlem, and New Haven lines must utilize the Park Avenue Viaduct to access Grand Central Terminal, totaling 98% of all Metro-North trains. The mile-and-a-quarter stretch encompasses four Metro-North tracks between 110th Street and the Harlem River Lift Bridge. This project replaces major segments of the aging elevated steel structure. The work includes replacing existing structures, tracks, power, communications, and the signal system from the north side of East 115th Street to the south side of East 123rd Street. The project is expected to reduce local noise and vibration levels, maintain public safety, while making the viaduct resilient and sustainable.

SJH’s scope of work includes utility coordination, temporary and permanent civil, drainage and utility designs, peer review of existing framing stability and temporary bracing during construction, and construction support services. Shape[Text Box]SJH is involved with inspection of spans of the viaduct which extends from 110th Street to 132nd Street. The in-depth inspection involves non-destructive testing at several locations. SJH also coordinated testing with the testing lab. SJH coordinates lane closures with NYCDOT OCMC and the NYPD.  SJH assisted with the preparation of inspection reports for the in-depth inspection of the viaduct and with traffic control and coordination.