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MBTA and Keolis Commuter Services engineers and a team from LM Heavy Civil Construction completed a major repair project in a single weekend: replacing a failed culvert under MBTA Orange Line and commuter rail tracks in Malden.

After a sinkhole had developed near the tracks earlier this month, MBTA crews shored up the sinkhole while preparations were made to replace the culvert.

In order to minimize service disruption,  a team of approximately 80 workers mobilized early Saturday, October 24, after the final train had passed.  In 50 hours of continuous work using numerous pieces of equipment including bucket loaders, trucks, excavators, compactors, and loaders, workers reached and removed the culvert, moving 3000 yards of dirt, rocks and stones in the process. The crew replaced it with a new culvert 36 feet in diameter and 110 feet long , rebuilt the track beds, repositioned the tracks and reopened the lines in time for today’s early Monday morning commute.  Check out the time lapse video.  Congratulations and thank you to the dedicated team of workers!



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