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From MassDOT…

Beginning at 8 p.m. on Friday, Sept. 11, 2015 the Needham-Wellesley I-95 Add-A-Lane project team will implement ramp changes at the Route 9/I-95 interchange.  In case of inclement weather, operations will be shifted to Saturday, September 12th at 8:00PM.

At 8:00PM on Sept. 11, new pavement markings, barrier, and temporary traffic control signage to support the new configuration will be finalized and implemented.  Variable message sign (VMS) boards will alert drivers to the new traffic pattern. The new traffic pattern includes the following:

  • Drivers traveling eastbound (toward Boston) on Route 9 and seeking to access I-95 northbound (toward the Massachusetts Turnpike) will exit Route 9 via a new signalized left-turn lane connecting them to a temporary ramp to I-95 northbound.
  • Drivers traveling westbound (toward Natick) on Route 9 and seeking to access I-95 southbound (toward Route 1) will exit Route 9 via a new signalized left-turn lane connecting them to a temporary ramp to I-95 southbound.

All other movements associated with the Route 9/I-95 interchange will remain as they currently are.

Motorists should note that while the configuration set for implementation on Sept. 11 is temporary, the configuration of left turns described above represents the permanent traffic pattern associated with the I-95 Add-A-Lane project at this location.

As an additional aide to drivers, message boards will be placed on Route 9 alerting motorists to the upcoming change

For more information about this project, please visit the MassDOT website