• Corporate HQ, NY
  • Melville, NY
  • Iselin, NJ
  • Ossining, NY
  • Mount Laurel, NJ

St. George Terminal Interlocking Sandy Repairs

Staten Island, New York<br style='line-height:2px'>New York City Transit

The Staten Island Ferry operates between the St. George Terminal in Staten Island and Whitehall Terminal in Lower Manhattan. The St. George Terminal is a park-and-ride and sea, railway and bus transit center located on the northernmost end of the Staten Island Railway. Flooding from Superstorm Sandy caused irreparable damage to switches, cables and wiring of the existing interlocking area, which consists of 17 switches and 12 operating tracks.

HAKS is a vital member of the construction management team providing services to New York City Transit (NYCT) to restore vital flood-damaged signal systems of the St. George Terminal yard and interlocking. The three-year, $100 million project includes modernization and replacement of the St. George interlocking signal system; removal of existing track and ballast; installation of new ballast and track and a new traction power system; and drainage and site work. All work must be constructed in the same footprint as other concurrent projects in the area, most notably the new Empire Outlets and the New York Wheel.

HAKS is specifically responsible for conformance to Sandy audit requirements; utilization of Constructware software as a project management tool; overseeing monitoring of noise, vibration and air and water quality; and coordination of material testing, including off-site testing by an independent entity. Upon construction completion, HAKS will acquire as-built drawings and documentation for review and approval.

HAKS is providing the constructability review with a focus on site access, working space and materials storage; sequence of operations; logistics and handling; specification tolerances; vulnerability of materials; and environmental and safety considerations. Environmental protection and safety will focus on removal of hazardous materials and protocols for access and protection of NYCT assets.

Although the project includes standard NYCT track and signal components, it is faced with major coordination and construction challenges. During preconstruction, HAKS prepared a program schedule that depicts multiple construction objectives, allows the construction firms to plan their own means and methods, manages site access and logistics for multiple overlapping contractors, manages construction risks to properly phase and sequence tasks, and manages design coordination via proper communication and documentation. The construction phase will include review of the contractors’ baseline schedules and incorporate them into a master project schedule. All project schedules will then be coordinated to identify project overlap, construction bottlenecks/peaks and initiate schedule mitigation prior to occurrence of slippage.

The project team will monitor occupancy and acceptance procedures to ensure a smooth transition from construction to occupancy and use of the facility.

An important milestone was reached in February 2016 when crews replaced an outdated slip switch with a new, more versatile, diamond cross-over switch. This upgrade, in conjunction with the modified track layout, allows the Staten Island Railway the flexibility of switching trains from Track S1 or S2 to Tracks 4 through 10. The diamond cross-over, controlled by four switch machines, serves as the gateway to 70 percent of the revenue tracks in the yard.