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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
  • Damp-proof and Waterproof Wall E along Support of Excavation, North Side
    Monday July 28 - Tuesday July 29
  • Commence Backfill of Northeast Retaining Wall, along Support of Excavation
    Wednesday July 30 - Friday August 1
    Monday August 4 - Tuesday August 5
  • Continue Forming, Reinforcing & Placing Retaining Wall Extension along Support of Excavation, South Side
    Thursday July 24 - Friday July 25
    Monday July 28 - Friday August 1
  • Form, Reinforce & Place Retaining Wall Extension Haunches for Noise Barrier along Support of Excavation, South Side
    Thursday July 24 - Friday July 25
    Monday July 28 - Friday August 1
    Monday August 4 - Wednesday August 6
  • Damp-proof and Waterproof Retaining Wall Extension along Support of Excavation, South Side
    Thursday July 24 - Friday July 25
    Friday August 1
    Monday August 4
  • Pave Winchester Street & Harvard Street from Manhole 9 to Proposed Manhole 1
    Wednesday July 30 - Friday August 1
  • Prep & Flow Fill 24" Brick Drain Line below Southeast Retaining Wall, along Support of Excavation
    Monday July 28 - Friday August 1
  • Commence Backfill of Southeast Retaining Wall, along Support of Excavation
    Monday August 4 - Friday August 8
    Monday August 11 - Wednesday August 13
  • Continue Rodent Control Maintenance along Tracks
    Friday July 25
    Friday August 8

Work Done Requiring Lane Closure with Sidewalk Closure
  • Apply Bridge Deck Waterproofing at New Bridge
    Monday August 4 - Friday August 8
  • Complete Drainage Installation Manhole 4 to Proposed Manhole 1 in Harvard Street
    Thursday July 24 - Friday July 25

Water Street Site, Cambridge
  • Mobilize for Demolition
    Monday August 4 (possible)
    OR Monday August 11
  • Commence Demolition of 21 Water Street
    Monday August 4 - Friday August 8 (possible)
    OR Monday August 11 - Wednesday August 13

Medford Street, Somerville
Work Done Requiring Road Closure
  • Complete Prep and Top Coat Painting of Existing Bridge, in Medford Street
    Thursday July 24 - Friday July 25
  • Retrofit Girder 5 and Girder 2 for New Steel and Remove & Replace Girder 2 Foot Beam Clips in Medford Street
    Monday July 28 - Friday August 1
    Monday August 4 - Friday August 8
    Monday August 11 - Wednesday August 13 (road open to single lane traffic)
  • Drill, Form, Reinforce and Place Abutment Seat Concrete in Medford Street
    Monday July 28 - Friday August 1
    Monday August 4 - Friday August 8
    Monday August 11 - Wednesday August 13 (road open to single lane traffic)


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