Status
The project was advertised under MassDOT’s Design-Build Program and awarded to D. W. White Construction, Inc. and TranSystems in November 2022.
Construction activities are in progress. Weather and unexpected circumstances make all construction activities subject to change without notice, but we will do our best to keep you updated.
2025 Construction Season Impacts
During the 2025 construction season, crews will be conducting construction activities, including the installation of the Oxbow Road roundabout, which may have traffic impacts, such as single lane closures on Route 20. We will update this page with any further traffic impacts.
Route 20 Lane Closures for Oxbow Road Roundabout Installation
To prepare for construction work on the Oxbow Road Roundabout, MassDOT will be implementing single lane closures during the months of June and July.
This lane closure will shift traffic on Route 20 eastbound and westbound from the center of the roadway to the outside lanes of the roundabout. Traffic will need to slow their speeds to 15 miles per hour while approaching the work zone to travel through the construction area. This traffic shift is scheduled to be in place through the end of July.
Temporary Closure of Oxbow Road at Route 20
MassDOT temporarily closed Oxbow Road at Route 20 across from Arnie’s Towing, but westbound traffic on Route 20 will be allowed to enter Oxbow Road across from Arnie’s Towing. Traffic on Oxbow Road (across from Arnie’s Towing) will not have access to Route 20 westbound and should use Glenmere Rd or Oxbow Rd/Hammond Hill Rd to access Route 20.
The closure and detour for Route 20 westbound are necessary to allow MassDOT’s contractor, D.W. White Construction, Inc., to construct the roundabout planned at Oxbow Rd (learn more about the roundabout design in the May 2023 public meeting presentation). Signage will help direct traffic to the detour routes.
Detour Routes
For traffic on Oxbow Rd wishing to travel westbound on Rt 20, please use one of the following detours:
- Option 1: Heading west on Oxbow Rd, turn left on Glenmere Rd, then turn right on Route 20 westbound.
- Option 2: Heading west on Oxbow Rd, turn left on Oxbow Rd/Hammond Hill Rd, then turn right on Route 20 westbound.
Speed Limits Reduced in Construction Work Zone on Route 20
MassDOT has issued a work zone speed limit to reduce the posted speed limit on Route 20 within the project work zone, between Route 12 and Richardson Corner Road, until further notice. The posted speed limits will be further reduced during active work hours for the safety of the roadway users and workers.
Speed limits are reduced in the following areas:
- Richardson Corner to Route 56: the speed limit has been reduced from 50 MPH to 45 MPH. During active work hours, the speed limit will be further reduced to 40 MPH.
- Route 56 to Thayer Pond Drive: The speed limit has been reduced from 40 MPH to 35 MPH. During active work hours, the speed limit will be further reduced to 30 MPH.
- Thayer Pond Drive to Route 12: The speed limit has been reduced from 45 MPH to 40 MPH. During active work hours, the speed limit will be further reduced to 35 MPH.
Dynamic message signs will be posted to show the reduced speed limit during active work hours and advance warning signs are used onsite to notify the traveling public of the reduced speed limits.
Wide Loads Prohibited from Work Zone on Route 20
MassDOT has issued a restriction prohibiting vehicles carrying wide loads over 8 feet, 6 inches (8’6”) from traveling through the Route 20 Reconstruction Project work zone, between Route 12 and Richardson Corner Road. The travel restriction is in place 24 hours per day, seven days per week until further notice.
All vehicles carrying wide loads should avoid the work zone, seek alternate routes, and contact MassDOT’s Commercial Truck Permits Office for more information.
Traffic and Staging Considerations
The project involves complete reconstruction of Route 20 in the Towns of Charlton and Oxford over approximately 4 years. Typical work hours are 7 a.m. to 3:30 p.m. Some work may vary depending on traffic volumes between 5 a.m. to 7 p.m.
There are occasional nights and weekend work for some demolition and off-peak work that needs lane taking to execute the work.
Access will always be maintained for emergency services and the project team will be in contact with first responders to maintain communication throughout the performance of the contract.
All major operations are confined to fixed work zones. Travel speeds are reduced through work zones for the safety of our workforce and the traveling public.
To minimize traffic impacts, the project will:
- Minimize construction vehicles turning movements within the project limits to reduce congestion
- Use water spray for dust suppression
- Maintain intersection access and traffic in each direction on Route 20
- Maintain proper signage and markings
- Provide temporary roadway lighting for safe nighttime travel
- Provide safe construction access/egress
- Maintain resident and local business access/egress