Acceler-8 I-90 Bridge: Section of Parkerville Rd and Flanders to be closed (4pm today through early Monday)

Above: This weekend, MassPike construction is impacting Southborough roads – hopefully for the last time this summer. (images cropped from detour map and project flyer)

This weekend, MassDOT will replace the last two of the eight MassPike bridge spans being replaced this summer in/near Southborough. This time, sections of closed local roads will be on Parkerville Road (on the south side of town) and Flanders Road (just over the border in Westborough).

Impacts could cause heavier than usual weekend traffic on other local roads. Southville, River, and Cordaville Roads are on the official detour map (here). (Gilmore Road and Richards Road aren’t but may also see extra drivers seeking alternate routes given their locations.)

If all goes according to plan, this will be the last time local roads are closed for the Acceler-8 project this summer. (Next weekend is slated for repaving the spans, which shouldn’t impact town roads.)

Last weekend, the state crew replaced the eastbound span of the Cordaville Road bridge. It was the second span of that bridge replaced. Both spans of Woodland Road’s overpasses have also been replaced. Throughout the summer, @MassDOT has tweeted pics and videos of the #Acceler8 work in progress. 

Below is a video of work from the weekend of July 10th, when crews worked on the westbound sections of Parkerville and Flanders bridges:

To follow the bridge work on twitter this weekend, click here. Below is the updated detail on the project and this weekend’s travel warnings and detour routes from MassDOT: 

Details on the upcoming bridge replacements beginning the weekend of August 6 can be found on the How will I be Impacted? page of the project website.

Replacement of the I-90 eastbound bridges over Flanders Road in Westborough and Parkerville Road in Southborough will begin on Friday, August 6 at 7:00 PM.

How will this affect me?

The upcoming work next weekend is to replace the I-90 eastbound bridges over Flanders Road in Westborough and Parkerville Road in Southborough. The work will take place from 7:00 PM on Friday, August 6 to 5:00 AM on Monday, August 9. The Flanders and Parkerville Road detours under the bridges will begin at approximately 4:00 PM on Friday and end at 5:00 AM on Monday. The Flanders and Parkerville Road detour map can be viewed on the website.

Travel tips

Expect delays and seek alternate routes. Plan ahead by signing up for project emails or checking before you leave home.

How can I find out more information?

Stay up-to-date and informed by following the @MassDOT Twitter account, visiting the project website, or emailing us with any questions:

For real-time updates on traffic, construction, and incidents on MassDOT roadways visit the Mass511 website at Here, you can create a route, specific to your origination and destination, and choose how and when to receive updates related to roadway delays.

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