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Springfield I-91 Viaduct BannerStarting in mid-December, MassDOT expects to implement a series of lane and ramp closures to begin the major rehabilitation of the I-91 Viaduct in Springfield.

Generally, the number of lanes on I-91 will be reduced by one in each direction; two travel lanes will remain open in each direction for the duration of the project south of the I-291 Interchange.

During this construction stage, the inner travel lanes of I-91 North and South along the median will be closed for deck replacement. I-91 north and southbound traffic will be shifted to the right, using the areas currently occupied by the shoulder and outside travel lane. This lane configuration will continue through late fall 2016. The 40 MPH reduced speed limit in the construction zone and 45 MPH limit approaching the zone will continue to be enforced. These limits will be in place for the duration of the project.

Ramp Closures

The following ramps will be closed beginning in mid-December for safety and operational reasons, and to expedite construction. They will remain closed through late fall 2017:

  • Birnie Avenue connector (closed since October 2015)
  • Union Street on-ramp to I-91 North
  • State Street on-ramp to I-91 North
  • Exit 7 off-ramp from I-91 South
  • Exit 6 off-ramp from I-91 South
  • Route 20 connector to I-91 South

MassDOT has built a new West Columbus Avenue/Birnie Avenue off-ramp (temporary Exit 7-6) for I-91 southbound traffic to access downtown Springfield, the Memorial Bridge, and the Basketball Hall of Fame area.

Detour Routes and Maps

MassDOT has undertaken significant planning to improve traffic flow during the ramp and lane closures. Working with the City of Springfield, MassDOT has developed detour plans and local improvements, as well as a comprehensive monitoring program of key corridors and intersections. Signs will direct drivers to many Springfield destinations. The traffic plan will be updated based on ongoing monitoring. Learn more about traffic mitigation on the project website.

Detour routes and maps, available in English and Spanish, are posted on the project Traffic page. A follow-up email advisory will announce the start date for the Stage 1B lane/ramp closures and detour routes.

Other Restrictions

During construction, the north entrance to the North Parking Garage below the Viaduct will be closed. The north exit will remain open, but only right turns will be permitted out of the garage, providing access onto East Columbus Avenue.

Those traveling through the area should expect delays, follow the reduced speed, and use caution. MassDOT encourages drivers to avoid the area and seek alternate routes to minimize delays.

For more information about the project, visit the I-91 Viaduct Rehabilitation project website. To report issues or concerns, or for questions related to construction, please email I91viaduct@state.ma.us or call 617-454-1839.

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