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Massachusetts Bay Transportation Authority (MBTA) Massachusetts Department of Transportation
Green Line Extension Green Line Extension
Construction Schedule
Phase 1
  

 

Phase 1 Project Description

Harvard Street, Medford
  • Continue Backfill of Southeast Retaining Wall, along Support of Excavation
    Thursday August 21 – Friday August 22
    Monday August 25 – Friday August 29
    Tuesday September 2 – Friday September 5
    Monday September 8 – Wednesday September 10
  • Commence Installation of Track Under Drain, along Support of Excavation
    Monday August 25 – Friday August 29
  • Commence Installation of AT&T Conduit, along Support of Excavation
    Tuesday September 2 – Friday September 5
  • Commence Backfill of Northeast Retaining Wall Drainage Course, from Tufts Science & Tech
    Friday August 22
    Monday August 25 – Friday August 29
  • Commence Backfill of Northeast Retaining Wall, along Support of Excavation
    Tuesday September 2 – Friday September 5
    Monday September 8 – Wednesday September 10
  • Continue Rodent Control Maintenance along Tracks
    Friday August 22
    Friday September 6

Work Done Requiring Lane Closure with Sidewalk Closure
  • Apply Bridge Deck Waterproofing at New Bridge
    Wednesday August 27 – Friday August 29
  • Saw cut and Grade Winchester Street & Harvard Street from Manhole 9 to Proposed Manhole 1
    Friday August 22 – Saturday August 23
    Monday August 25 – Tuesday August 26
  • Pave Winchester Street & Harvard Street from Manhole 9 to Proposed Manhole 1
    Friday August 22
    Wednesday August 27
  • Commence Drainage Installation from Manhole 16 to Manhole 9
    Monday September 8 – Wednesday September 10

Water Street Site, Cambridge
  • Demolition of 21 Water Street
    Thursday August 21 – Friday August 22
    Monday August 25 – Thursday August 28

Medford Street, Somerville
Work Done Requiring Lane Closure with Sidewalk Closure
  • Retrofit Girder 5 and Girder 2 for New Steel and Remove & Replace Girder 2 Foot Beam Clips in Medford Street
    Thursday August 21 – Friday August 22

Work Done Requiring Sidewalk Closure
  • Drill, Form, Reinforce and Place Abutment Seat Concrete along Sidewalk
    Thursday August 21 – Friday August 22
    Monday August 25 – Friday August 29
    Tuesday September 2
  • Saw Cut Northwest Abutment, along Sidewalk
    Monday August 25 – Tuesday August 26
  • Install Bridge Bearings, along Sidewalk
    Wednesday September 3 – Friday September 5


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