Greenbush Line

The Massachusetts Bay Transportation Authority (MBTA), the agency responsible for public transportation in Massachusetts, restored commuter rail on the Greenbush Line as part of enhanced service across the Old Colony system serving Boston and outlying communities. 

The 18-mile route crosses five communities rich in natural and cultural resources including historic village districts, individual properties, and archaeologically sensitive areas. The project had to meet state and federal environmental requirements for historic and archaeological resources.


For the project, PAL provided:

  • Historic and archaeological reconnaissance and intensive surveys
  • National Register of Historic Places eligibility evaluations
  • Section 106 consultation
  • Massachusetts Environmental Policy Act review and reports
  • Programmatic Memorandum of Agreement
  • Mitigation implementation including technical oversight, photographic documentation, interpretive panels, design review, and data recovery.

PAL’s cultural resource services involved pre-construction, construction, and post-construction phases of the design-build project in accordance with the mitigation measures mandated by the stipulations in the project Programmatic Agreement (PA) under Section 106 of the National Historic Preservation Act.

PAL also facilitated coordination activities with the Project Conservator, the MBTA, the U.S. Army Corps of Engineers, the Massachusetts State Historic Preservation Office, the five communities, and the public.

PAL developed, researched, and designed 21 interpretive panels on the history of the Greenbush Line and its impact in the five communities that are installed at each of the seven stations.


The Greenbush Line went into service in October 2007. In the post-construction phase, PAL is assisting the MBTA and the project team through review of the project monitoring plan and oversight of the prime consultant’s implementation of the plan, and oversight of any other activities as specified in the PA and its attached documents.

Client Name: 
Massachusetts Bay Transportation Authority (Jacobs Civil, Inc., DMJM Harris, Inc. (now AECOM))
Project Name: 
Greenbush Line Commuter Rail Restoration Project
Project Date: 
1998 to 2009
Project Location: 
Braintree, Weymouth, Hingham, Cohasset, and Scituate, Massachusetts