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O'Brien Highway (Route 28) Reconstruction Project

Divco West, the developer of Cambridge Crossing, is redesigning and reconstructing O'Brien Highway from Land Boulevard to Third Street and some nearby streets. This reconstruction is a requirement of the City of Cambridge Planning Board Permit PB-179. Divco West included the City and Massachusetts Department of Transportation staff in creating the plans.

On O'Brien Highway between Third Street and Land Boulevard, this reconstruction includes:

  • separated bicycle lanes
  • new sidewalks
  • enhanced pedestrian crossings
  • landscaping

On Cambridge Street between Second Street and O’Brien Highway, this reconstruction includes:

  • separated bicycle lanes
  • new sidewalks

Divco West will also construct a new section of First Street between O'Brien Highway and Cambridge Street.

Divco West began roadway reconstruction work in 2019. This reconstruction will be completed in phases.


Divco West plans to finish rebuilding O'Brien Highway later this year. Their work area includes O'Brien Highway from Land Boulevard to Third Street. In addition, Divco West is demolishing the old Lechmere station buildings and infrastructure.

To access the new Lechmere Station, people can now cross O'Brien Highway at Water Street. At Water Street, there is an enhanced pedestrian crossing with new audible pedestrian signals and median island. There is also a parallel dedicated bicycle crossing. After crossing O’Brien Highway, people walking can enter the new Lechmere Station using either O’Brien Highway and North First Street or Water Street.

Upcoming construction in 2022 includes:

  • New asphalt and final street pattern on O'Brien Highway
  • Divco West to build new section of First Street between O'Brien Highway and Cambridge Street
  • Divco West to rebuild Cambridge Street between Second Street and O'Brien Highway

Click here to view final reconstruction plans.

Construction on the O’Brien Highway Reconstruction will be going on through 2022.