This MBTA project consisted of relocating the Green Line from the existing viaduct to the new Green Line tunnel through the Bank North Garden (Fleet Center), up a transition structure to meet the existing Science Park Station.
Electrical work involved a complete Signal & Communication system, including fiber optic, multi pair phlenum rated phone cable, radiax cable, single & multi conductor signal cables ranging in size from #20 to 1/O awg, Two 13.8 KV Unit Substation and associated Motor Control Centers, Two Ventilation Structures, DC Traction Power distribution system for the Overhead Catenary System and Tunnel Lighting. Sub-systems including Fire Alarm, SCADA, Sixteen Telephone (Wayside & Centrex), Radio and Fiber Optic systems.
The complete Overhead Catenary System included poles, supports, traction power disconnect switches and spring/counter weight tensioning devices.