Contract Description

The Work includes approximately 130,000 cubic yards of soil improvement by soil-cement mixing and jet grouting between the new Wye Connector railroad bridge and the new Broadway Bridge; improvement to 400 linear feet of the Fort Point Channel, including dredging and erosion protection; 5,600 linear feet of surface roads, 3,700 linear feet of boat sections; 3,000 linear feet of tunnel sections; and 10,000 linear feet of viaducts. Tunnel construction includes cut-and-cover tunnels and the jacking of three tunnels through frozen soil beneath active railroad tracks leading to South Station.

Also included is construction of the new Wye Connector railroad bridge having an overall length of approximately 180 linear feet; demolition of the existing railroad bridge; and construction of temporary surface roads. The Work includes obstruction removal, ramp and bridge construction, utility relocation, signage and signalization, surface drainage systems, street lighting, and street paving.