The Park Avenue Viaduct is an elevated railroad structure which carries four (4) third-rail powered tracks along Park Avenue from East 97th Street (cut stone retaining walls and cut stone arches), then at East 110th transitions to a steel viaduct up to the Harlem River Lift Bridge. The Viaduct spans 21 city blocks and is approximately 1.2 miles long. All trains from the Hudson, Harlem and New Haven Lines converge just north of the Viaduct and must cross it to enter Grand Central Terminal.
As a subconsultant, SI Engineering, P.C. (SIE) provided construction management and outreach services for the design-build contract for Phase 2 of the complete replacement of MTA-MNR’s Park Avenue Viaduct from Bent 74 to Bent 89 between midblock of East 127th / East 128th Street and midblock of East 131st / East 132nd Street along Park Avenue in Harlem, NY.
SIE provided construction management services, including detailed inspection, on-site field testing of materials, other construction activities, such as including field measurement and collection of data necessary to submit monthly and final estimates and progress reports, and preparing record plans showing all changes from the contract plans. SIE also provided project field office administrative assistance and document control support.
SIE also provided outreach services, including coordinating and maintaining ongoing communication with the surrounding community and stakeholders to keep them informed of the status of the project. SIE staff attended and prepared materials for various stakeholders’ meetings to provide updates on how construction phase activities of the project may impact the community. SIE staff also actively managed public outreach activities, such as meetings, presentations, material development, digital content, and behind-the-scenes research on community issues.
