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tobin-bridge-work-map-march-2018MassDOT has announced that the on-ramp from Everett Avenue onto the Tobin Bridge (Route 1 southbound) in Chelsea will be re-opening at approximately 6 a.m., on Saturday, June 9. This on-ramp has been closed for approximately one month due to the Tobin Bridge Repair project.

Members of the public are reminded that ongoing Tobin Bridge work will also mean temporary off-peak lane closures on Route 1 north and southbound through November 2018. Additionally, the Beacon Street off-ramp will be closed for an approximately two month period beginning in summer 2018.

Construction operations through this project are generally being conducted during off-peak hours. Milling work has meant that daytime commuters must travel on some milled roadway surfaces and reduce their speeds through these areas. MassDOT appreciates the cooperation and patience of the traveling public as transportation infrastructure is maintained and repaired. Members of the public are encouraged to utilize the appropriate technology tools including mass511.com, MassDOT’s GoTime travel app, and other wayfinding resources to find the most appropriate route, mode, and timing of travel during construction operations.

 This $41.6 million project involves repairing a section of the deck of the Tobin Bridge which carries traffic between the Charlestown neighborhood of Boston and Chelsea. Work is scheduled to be completed at the end of 2020.

Three full lanes of travel will be in place on the Tobin Bridge this year during peak commute hours. Travelers are reminded that there will be future traffic impacts including permanent lane closures on Route 1 northbound during the 2019 and 2020 construction seasons.

The full scope of work will include steel repairs to the upper and lower decks, concrete deck work on the lower deck, followed by waterproofing, resurfacing, and installing pavement markings. Operations will also consist of utility installation, installing curbing, paving, constructing a new parking lot under the bridge between Williams Street and Third Street.

The Tobin Memorial Bridge was erected in 1948-1949 and opened to traffic in 1950. It carries Route 1 with three travel lanes northbound on its lower level and three lanes southbound on the upper level. The 36-foot-wide roadway is bounded on both sides by safety walks (2’7″ wide) with steel-pipe railings on each side.

The main structure over the Mystic River is a three-span, cantilevered truss 1,525′ in length. Its center span is 800′ and the maximum truss height is 115′. It provides a navigable waterway opening 700′ wide by 135′ high. A smaller, simply supported warren truss spans the Little Mystic. It reaches a maximum truss height of 65′ and is 439′ long. Its navigable waterway opening measures 340′ wide by 100′ high.

 

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