Steinway Tube Duct Rehabilitation & CBH Construction
- Client: MTA, New York City Transit
- Project Value: $34,020,000
The work consists of the demolition of the existing concrete ductbanks in both Steinway Tubes (#7 line) under the East River. The removal and disposal of the existing Power and Communication cables, including lead-sheathed cables that are run in these ductbanks. The construction of 8,100 linear feet of new concrete ductbanks each with (6)-4″ FRE Conduits; the installation of 17000′ of Power (2000kcmil negative feeders) and 22,000 ‘ of Communications (Telephone and Fiber Optic) cables in the new ductbanks.
TC will construct new circuit breaker houses at the Vernon-Jackson and Main Street stations. In the two new circuit breakers houses, TC will furnish and install (7) new equalizer circuit breakers and associated equipment. TC is responsible for testing and placing the equipment into operation, together with all control cables and circuits to other electrical facilities.
In addition, the work consists of the complete rehabilitation of two pump rooms located in the Steinway Tube including the furnishing, installation, and placement into service of all pumps, discharge piping, motor control centers and associated equipment inside the rooms. The work also includes the installation of all power, control, and communication conduit and cables from other facilities to the pump rooms.
After work on contract C-33850 had started the Steinway Tube was flooded during Superstorm Sandy. Due to this emergency, NYCTA issued a AWO to restore pump system and tracks affected by the storm. The work includes replacement of all equipment and wayside conduit feeds of water damaged Pump Room 3227. Replacement of 8,100 linear feet of water damaged 6″ discharge lines with new 8″ discharge lines and the replacement of 2400 linear feet of water damaged track and contact rail. TC will relocate the Steinway Tube Pump Control room located at the bottom of Shaft # 2 (Steinway Tube Level) to a new street level room adjacent to the top of Shaft # 2 approximately 10 stories up.