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Fitchburg Commuter Rail Improvements Track, Civil & Signal Project

Somerville - Fitchburg, Massachusetts

Client/Owner: Massachusetts Bay Transportation Authority (MBTA)
11,150 TF Track Demolition
16,111 TF New Track Installation
9,200 New Crossties
566 Thermal welds
About This Project
LM Heavy Civil Construction, LLC (LMH) served as part of a joint venture (35% share) selected by the MBTA to deliver this important $60 million Fitchburg Commuter rail improvements project. LMH responsibilities included improvements to the existing track alignment, Construction of new tracks though through select segments, new or improved interlockings, a second track though South Acton Station area (which involved 11,150 TF of track demolition; 16,111 TF of new trackwork; installation of 9,200 new crossties; and 566 thermite welds), upgrade of existing Automatic Grade Crossing Warning Systems (AGCWS), and associated roadway surfaces, and railroad signals and communications. A key element of LMH's responsibilities involved the dismantling and salvaging of 35 existing turnouts, crossovers and track segments, including 5 No. 10 Turnouts, 1 No. 10 Cross Over, 3 No. 15 Cross Over, and 7 No. 20 Cross Overs. The work also included 24,759 CY of excavation; placement of 5,370 LF of *-in diameter sub-drainage; and 5,856 SF of precast block retaining walls. These improvements were constructed/delivered while the existing commuter line service and freight line service continued to function.
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