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casey-arborway-final-alignment-2018MassDOT has announced that beginning at 10 a.m., on Friday, January 26, 2018, crews will shift traffic in Jamaica Plain so that the westbound Arborway will be in its final alignment between South and Washington Street as part of the ongoing Casey Arborway Project.

The following changes will go into effect when the westbound Arborway is shifted into its final alignment:

  • Westbound traffic will be discontinued on New Washington Street.
  • Westbound left turns to go from the Arborway to South Street southbound (towards Roslindale) will be prohibited at the intersection of Arborway/South Street.
  • Drivers seeking to make the left turn from the Arborway to South Street southbound will:
  • Continue through the intersection;
  • Proceed to the western median U-turn;
  • Reverse direction using the median U-turn;
  • Proceed to the intersection of Arborway/South Street and turn right onto South Street southbound.

Work on the establishment of permanent bicycle and pedestrian pathways will continue throughout the traffic shifts just described.

Once these changes are in place, all east and westbound left turns at Arborway/South Street and Arborway/Washington Street will be processed by the median U-turns.  The only exception will be as follows:

  • MBTA buses will have a dedicated lane to turn left from the Arborway westbound onto Washington Street southbound (toward Hyde Park Avenue) to access the lower busway at Forest Hills Station.
  • All other vehicles will be prohibited from this lane during peak commuting hours.  An electric sign mounted on the traffic signal will indicate when this lane is legally available to general traffic.

Signage will be in place to guide drivers during this time. Drivers that must travel through the affected area should remain aware of updated traffic patterns, reduce speeds and use caution.

For more information on traffic conditions travelers are encouraged to:

  • Dial 511 before heading out onto the roadways and select a route to hear real-time conditions.
  • Visit, a website which provides real-time traffic and incident advisory information, access to traffic cameras, and allows users to subscribe to text and email alerts for traffic conditions.
  • Follow MassDOT on Twitter @MassDOT to receive regular updates on road and traffic conditions
  • Download MassDOT’s GoTime mobile app and view real-time traffic conditions before setting out on the road.

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