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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
  • Concrete Placement of Wall E Repair from Science &Tech Center Parking Lot, North Side
    Monday July 21
  • Damp-proof and Waterproof Wall E along Support of Excavation, North Side
    Thursday July 24
    Friday July 25
    Monday July 28
  • Continue Forming, Reinforcing & Placing Retaining Wall Extension along Support of Excavation, South Side
    Thursday July 17 – Friday July 18
    Monday July 21 – Friday July 25
    Monday July 28
  • Form, Reinforce & Place Retaining Wall Extension Haunches for Noise Barrier along Support of Excavation, South Side
    Thursday July 17 – Friday July 18
    Monday July 21 – Friday July 25
    Monday July 28 – Friday August 1
  • Damp-proof and Waterproof Retaining Wall Extension along Support of Excavation, South Side
    Monday July 28 – Wednesday July 30
  • Apply Sample Coatings to Cast-in-Place Retaining Wall Mock-up in Yard
    Wednesday July 23
  • Designer Review Sample Coatings to Cast-in-Place Retaining Wall Mock-up in Yard
    TBD
  • Flow Fill 24" Brick Drain Line below Southeast Retaining Wall, along Support of Excavation
    Monday August 4 – Wednesday August 6
  • Continue Rodent Control Maintenance along Tracks
    Friday July 25

Work Done Requiring Lane Closure with Sidewalk Closure
  • Complete Connection and Touch-up Painting of New Bridge, in Harvard Street
    Thursday July 17 – Saturday July 19
  • Commence Bridge Deck Waterproofing at New Bridge
    Thursday July 31 – Friday August 1
    Monday August 4
  • Continue Drainage Installation Manhole 4 to Proposed Manhole 1 in Harvard Street
    Thursday July 17 – Friday July 18
    Monday July 21 – Friday July 25
    Monday July 28 – Friday August 1
  • Complete Sewer Lateral Reconstruction at 296 Harvard Street
    Thursday July 17 – Friday July 18
    Monday July 21

Water Street Site, Cambridge
  • Provide Power Disconnect Confirmation to Department of Public Safety for Approval
    Thursday July 24 - Friday July 25
  • Mobilize for Demolition
    Monday July 28
  • Commence Demolition of 21 Water Street
    Monday July 28 – Friday August 1
    Monday August 4 – Wednesday August 6

Work Done by Others
  • NSTAR Electric Disconnect Service to Building
    Thursday July 17 – Friday July 18
    Monday July 21 – Tuesday July 22

Medford Street, Somerville
  • Continue Prep and Top Coat Painting of Existing Bridge, in Medford Street
    Thursday July 17 – Friday July 18
    Monday July 21 – Friday July 25
    Monday July 28 – Friday August 1
    Monday August 4 – Wednesday August 6
  • Drill, Form, Reinforce and Place Abutment Seat Concrete, in Medford Street
    Monday July 21 – Friday July 25
    Monday July 28 – Friday August 1
    Monday August 4 – Wednesday August 6
  • Demo NW Abutment per RFI 055, in Medford Street
    Monday August 4 – Wednesday August 6


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