The reconstruction of the I-93 viaduct between exit 21 and Temple Street is expected to continue through the fall of 2024.. — Photo by Bobbie Toner

By Michael McHugh

Next month, work will begin on the I-93 viaduct in Somerville between exit 21 and Temple Street.

In a June 9 public meeting, the Massachusetts Department of Transportation (MassDOT) outlined their plan for the reconstruction project which will take place from summer 2022 to fall 2024.

This viaduct, carrying one of the most important roadways in the area, is in need of repair after over 50 years of deterioration and weathering. Altogether, the preservation work will consist of substructure concrete repairs, structural steel repairs, structural steel cleaning and painting, bridge joint replacements, and concrete deck repairs, all with the purpose of strengthening the viaduct and improving its lifespan.

During the 30-month reconstruction period, Somerville residents should expect some traffic impacts to their commute, as well as some dust and noise. Baseline noise levels were collected by a licensed acoustical engineer, and a noise control plan has been submitted and approved by MassDOT.

The contractor will minimize noise based on the recommendations of the acoustical engineer, keeping in mind communities adjacent to the construction. Dust emissions are a similarly unavoidable problem, but will be managed through dust suppression methods such as light water sprays, foams, calcium fluoride, and other suppressants

Impacts on I-93 traffic will include overnight lane closures, ramp closures, and detours.

One notable change taking effect later this summer is the moving of the MBTA Route 95 Bus Stop from Mystic Avenue opposite Kensington Avenue to Middlesex Avenue at Foley Street.

Detours will be primarily implemented at night, but all detours will be made known to the public through MassDOT’s communication channels over social media, the project website, GovDelivery, and MassDOT’s email which can be reached through their website. Information will also be passed along through local officials and community organizations.

For more information, including detailed detour routes, contact info, and further project details, you can visit:(mass.gov/somerville-i-93-viaduct-preservation). Questions, concerns, and feedback can be sent to the project team at MassDOTi93SomervilleViaduct@dot.state.ma.us.