Green Line Extention

Green Line Extention

Project Overview:

Costing $2.3 Billion the project extended the MBTA Green line from Lechmere Station to Union Sq in Somerville and College Ave in Medford. Lechmere station was relocated and 6 new stations were constructed. The project included a new vehicle storage and maintenance facility, miles of retaining walls, relocating existing tracks, new catenary and signal systems, and 1.9 miles of community path. 

Services Provided:

Survey Management, 3D laser scanning, construction layout, deformation monitoring, as-built surveys, AUL plans, and topographic surveys


GLX Constructors JV


30 January 2023




17 Accord Park Dr, Ste 102
Norwell, MA 02061
(781) 681-6667