|Shuttle buses replacing Green Line D branch service in both directions between Kenmore and Newton Highlands Stations due to due multiple tree branches on the overhead wire between Newton Highlands and Fenway.|
Columbia Junction Signal Replacement Project
The MBTA Board of Directors awarded MBTA Contract Q40CN01 entitled “Columbia Junction Signal Replacement Project” to Barletta-Fischbach Joint Venture in the amount of $42,980,000.00. The Authority issued a Notice to Proceed on December 21, 2011.
The Columbia Junction Signal Replacement Project is a potentially forty-one-month program that will consist of the following: replacement of the wayside signal equipment, track turnouts and ties for the interlocking system between Andrew and North Quincy Stations on the Braintree Branch and Fields Corner Station on the Ashmont Branch; install and place in service a new cable trough / raceway system within those boundaries; and install and commission a new central terminal house (CIH), which will interface with the existing CIHs and the new wayside equipment to include the installation of fiber cable throughout the limits of this project.
Phase 1 of the Columbia Junction Project has ended with the last diversion taking place the weekend of December 6-7, 2014. Phase 1 consisted of night work, though the majority of the work was performed during pre-approved revenue service diversions (weekend shuttles). All thirty-five (35) scheduled revenue service diversions planned for the Columbia Junction Signal Replacement Project during Phase 1, which began in March 2012, are complete. Several of the planned scheduled diversions were re-sequenced due to scheduling conflicts as well as unforeseen site conditions while excavating for the track. Extra work was required in order to complete the track reconstruction. During these planned service diversions, the MBTA provided shuttle bus services to accommodate all passengers between Broadway and North Quincy Stations on the Red Line's Braintree Branch and Fields Corner Station on the Ashmont Branch.
Phase 2 of the Project may include a limited number of shuttle bus diversions, though a future start date has not yet been determined.
Updated: December 2014