Sumner Tunnel restoration: Traffic and construction updates

Sumner Tunnel restoration work will impact commuters, travelers, and people in the surrounding communities. Learn about the current traffic impacts and construction updates here.

Vehicles traveling from the airport should check Mass511 for real time traffic updates.

Table of Contents

2024 Full Tunnel Closure

From July 5 to August 5, the tunnel will be fully closed to traffic. The tunnel will close at 12:01 a.m. on Friday July 5 (immediately after July 4) and reopen by 5 a.m. on Monday August 5.

MassDOT has coordinated with their partner agencies to develop mitigation measures for the full tunnel closure. Please visit the project website for a full list of mitigation during the full tunnel closure.

Travel Tips throughout the Sumner Rehabilitation project

During weekend closures, MassDOT anticipates an uptick in regional traffic and encourages those traveling through the area to continue to Ditch the Drive and plan ahead. Travelers can continue to utilize MassDOT 511 to help review traffic conditions and MBTA’s Trip Planner to plan their public transit trips.

Traveling to and From Logan Airport

During the closure of the Sumner Tunnel, MassDOT implements a relief lane for traffic exiting Logan Airport to the Ted Williams Tunnel (I-90) during times of lower traffic volumes on I-90 Westbound, typically beginning after about 11 a.m. and continuing into the evening hours. To implement this relief lane, MassDOT converts one travel lane on I-90 Westbound into a merge lane that allows vehicles exiting Logan Airport to freely join the I-90 mainline.

Adjacent projects

In addition to the Sumner Tunnel restoration project, drivers should be aware that MassDOT continues to conduct additional necessary maintenance activities in the area, including the Ted Williams (I-90) and Tip O’Neill (I-93) tunnels. In most cases, maintenance activities require a reduction in travel lanes to allow for the safe completion of work. Understanding the potential travel impacts created by any reduction in travel lanes, this work is scheduled outside of peak travel hours to minimize the impact on regional travel.

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Construction hotline (508) 510-2920

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