There are about 390 people working on the Green Line construction now
“Tons of dirt are being removed and trucked to the Somerville-Cambridge border, where it will be used to form an elevated base for a new Green Line vehicle facility.
Nearby, massive concrete structures leap out of the earth to eventually carry viaducts to the new destinations.
Noise barriers, retaining walls, and drainage systems are being installed alongside neighbors’ backyards. And bridges and old buildings are being demolished to make space, marking a huge disruption to Somerville’s road network.”