The Greenbush Line is a branch of the MBTA Commuter Rail system, which serves the South Shore region of Massachusetts. The 27.6-mile line runs from downtown Boston through the towns of Braintree, Weymouth, Hingham, Cohasset, and Scituate to the Greenbush neighborhood in southern Scituate. This service restoration, put in place as environmental mitigation for the Big Dig project, was the first passenger service on the line since 1959. CASHMAN was part of the Design-Build team that performed design and construction of the rehabilitation of 18 miles of track and signals through five towns and extensive wetland environments. This span of track included two cut-and-cover tunnel sections, ten railroad and eight highway bridges (including substructure and superstructure replacement), and 26 at-grade crossings. The team also constructed seven new MBTA stations including platforms and parking, a new state-of-the-art signal and communication system, and a layover facility. CASHMAN also implemented a community outreach program that won an ARTBA Pride Award for First Place in Community Relations in 2006. Now called Community Development Solutions, the program is still an active part of the company's platform when dealing with local communities. After this project was completed, modern passenger service on the Greenbush Line began on October 31, 2007.


PROJECT HIGHLIGHTS

• This span of track included two cut-and-cover tunnel sections, ten railroad and eight highway bridges (including substructure and superstructure replacement), and 26 at-grade crossings.
• The team also constructed seven new MBTA stations including platforms and parking, a new state-of-the-art signal and communication system, and a layover facility.
• Work included utility relocations; 60,000 square feet of slurry; 500,000 cubic yards of excavation; 40,000 cubic yards of cast-in-place concrete with 5,000 tons of rebar, and roadway construction work at 11 road and highway intersections.
• CASHMAN also implemented a community outreach program that won an ARTBA Pride Award for First Place in Community Relations in 2006. Now called Community Development Solutions, the program is still an active part of the company's platform when dealing with local communities.