Thursday, December 3, 2020

I-90 Exit Number Conversion Advisory

Dear Customer,

The Massachusetts Department of Transportation (MassDOT) is in the process of converting all exit numbers on freeways to a milepost-based numbering system, per Federal Highway Administration (FHWA) requirements. Currently, interstates and freeways in Massachusetts utilize a sequential exit numbering method. Construction began in the Fall of 2020 and is anticipated to be completed in the Summer of 2021.

This notice is to inform you that exit numbering conversion will begin on Interstate 90 on December 13, 2020. Construction details are as follows:

•       Corridor: Interstate 90 (Massachusetts Turnpike)
•       Location: Boston to West Stockbridge
•       Approximate start date: Dec. 13
•       Approximate construction duration: 4 weeks
•       Hours of operation: 8:00 PM - 5:00 AM

Please note that all work is weather dependent and construction dates may be adjusted accordingly. This work will not impact the tolls on this roadway.

For more information on the project and construction status, to leave a comment or sign up for project updates, please visit:


Video overview



Goodbye exit 16, ext 17; hello exit 41, exit 43
Goodbye exit 16, ext 17; hello exit 41, exit 43

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