Overview
The purpose of this project is to replace the deteriorating overpass with a new structure. The project provides opportunities to improve safety throughout the area, increase vertical clearance for freight movements, and enhance the public realm with improved pedestrian and bike connections to adjacent parklands. The project will:
- Replace the superstructure of the Bowker Overpass bridge
- Reconstruct the Bowker Overpass and Boylston Street intersection
- Remove the existing deficient off ramp structure over the Muddy River
- Widen the bridge structure to provide pathways along Charlesgate West
Background
The Bowker Overpass is a major connection across I-90, the MBTA Commuter Rail, and Ipswich Street in Boston. Built in 1964, the overpass is in poor condition and lacks infrastructure to support multimodal movement. In its current condition, extensive maintenance or a replacement is required. MassDOT is replacing the overpass and making improvements to the surrounding streets to make positive impacts on environmental and cultural resources.
Project benefits
The roadway and intersections will be redesigned to enhance safety and improve traffic flow. The project will improve ADA accessibility and upgrade multimodal infrastructure. The ramp over the Muddy River will be removed. The project will improve connections to Charlesgate and Back Bay Fens parklands.
Construction impacts
MassDOT anticipates these temporary construction impacts:
Road users
- Traffic over the bridge will be maintained throughout construction.
- Drivers can anticipate temporary lane closures and rolling roadblocks on I-90 (Mass Pike).
- Parking restrictions and nighttime roadway closures on Ipswich Street.
Railroad
- Impacts to be limited to non-revenue MBTA hours.
Pedestrians
- During construction, one sidewalk will be kept open to pedestrians. Signage will be installed to help pedestrians navigate the project area.
Cyclists
- During construction, cyclists will be permitted to travel through the area as they normally would, either riding on the road or walking their bikes on the sidewalk.
Stay informed
Continue to visit the project website for more information on the project, impacts, and how to get involved and stay informed. To receive project updates, attend public information meetings, and get more information on the project, we invite you to sign up for the project’s e-list to receive meeting notifications and project updates.