TYLin provided design and construction management services for the 14th Street Viaduct Replacement Project in Hoboken, New Jersey.
The new bridge was constructed with the existing viaduct left operational to allow continuous traffic flow through the vital artery from Hoboken to local points west in Union City and Jersey City.
Carrying over 20,000 cars a day, the 14th Street Viaduct follows the same horizontal alignment as the original viaduct. The roadway and sidewalk on the south fascia were widened to allow for construction staging.
The eight-span replacement bridge is 1,177 feet long and built entirely of multi-steel girders. The spacing pattern of the new piers supporting the viaduct represents the least disruptive pattern to maximize public use of the area beneath.
As part of the design team, TYLin provided engineering services for the design of the east and west abutments, the retaining walls on the east and west end approaches, the pile-supported foundation for the retaining walls and abutments, and the pedestrian underpass at Clinton Street.
Scope of work included preparing construction documents for plans, specifications, and cost estimates. Hudson County also selected TYLin to provide construction inspection and construction management services for this project.
- The project resulted from a lengthy scoping process and extensive pre-construction planning and design work.
- TYLin designed a shallow-depth, pile-supported foundation to minimize excavation, handling, and disposal of contaminated material discovered at grade.
- Staged construction allowed two lanes of the non-redundant arterial to remain open while construction took place on the other two lanes.
- TYLin provided a full-time Resident Engineer to monitor all the construction activities for the entire duration of the project.
- The area under the new bridge was converted into public space, including two new open-space areas for public gatherings.
Image Credit: Blueprint22 Photography