Reminder: Route 135 Will Close During Rail Bridge Project

NATICK, MA — A stretch of Route 135 will close Friday for a weekend-long construction project that will remove and replace a rail bridge over Bacon Street in Wellesley

Crews will begin work to remove the old bridge Friday morning. By the end of the weekend, the old bridge will be replaced by a new superstructure to carry trains along the Framingham-Worcester commuter rail line.

For drivers, the work means a Route 135 detour beginning at 9 p.m. Friday using either Route 9 or Route 16. Depending on the direction you're heading, traffic will divert at either Natick center or Weston Road in Wellesley.

Bacon Street, which is one of just three north-south rail crossings between Natick and Wellesley, will close completely beginning at 8 a.m. Friday. If all goes as planned, all roadways will reopen by Monday at 5 a.m.

Commuter rail trains will be replaced by shuttle buses between Framingham and South Station beginning after 10 p.m. Friday and lasting through the weekend.

The full Bacon Street bridge replacement — one of six bridges across the commuter rail system the MBTA is spending $91 million to replace — won't be complete until 2022.

You can see a map of the detour route on the MBTA website.