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tobin-bridge-work-map-march-2018MassDOT has announced an updated schedule for traffic impacts for the Tobin Bridge Repair project.

The sequence of work and corresponding impacts have been updated to better accommodate and optimize travel throughout the region as MassDOT is carrying out several major infrastructure projects this construction season including constructing the westbound side of the Commonwealth Avenue Bridge, the North Washington Bridge Replacement Project, and conducting repairs on the Alford Street Bridge.

This schedule adjustment means that MassDOT will no longer be implementing a permanent lane closure on the lower deck (Route 1 northbound) from April 22 through November of this year, but will instead be adjusting the width of the travel lanes in this area and utilizing off-peak lane closures. Three full lanes of travel will be in place on the bridge this year during peak commute hours.

The full list of impacts this construction season is now as follows:

  • Temporary off-peak lane closures on the lower deck (Route 1 northbound) from now through November 2018.
  • Temporary off-peak lane closures on the upper deck (Route 1 southbound) from now through November 2018.
  • Everett Avenue on-ramp closed at all times for one month period beginning in May 2018.
  • Beacon Street off-ramp closed at all times for a two month period beginning in summer 2018.
  • Fourth Street off-ramp closed for a one month period in 2019.
  • No more than one ramp will be closed at any given time throughout the duration of the project.

“We are investing historic levels of funding into our highway transportation system and we are seeking to do so in ways that minimize impacts on the travel public and our local communities,” said Highway Administrator Jonathan Gulliver. “Our construction teams have worked hard to optimize the schedule of operations to better accommodate travel throughout this area. We continue to encourage members of the public to learn about upcoming traffic impacts and use the appropriate tools to make the best decisions on traveling in order to reach their destinations in an efficient manner.”

This $41.6 million maintenance 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 with lane closures and traffic impacts occurring during each of the 2018, 2019, and 2020 construction seasons.

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.

The Baker-Polito Administration appreciates the cooperation and patience of the traveling public as we improve and strengthen our transportation system and core infrastructure. The Baker-Polito Administration has invested over $3.3 billion in highway transportation projects since January 2015, and this fiscal year, will invest over $1.5 billion in upgrading our roads, bridges, intersections, and multi-modal pathways.

Members of the public are encouraged to utilize the appropriate technology tools including mass511.com, our GoTime travel app, and other wayfinding resources to find the most appropriate route, mode, and timing of travel during our construction operations.

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