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tobin-bridge-from-chelsea-august-13-2010MassDOT will begin operations this week on an upcoming project to repair, clean and preserve by painting a section of the Tobin Memorial Bridge which carries Route 1 over the Mystic River and between the Charlestown neighborhood of Boston and Chelsea.

MassDOT crews and contractors will carry out the $15.6 million project that includes structural steel repairs as well as cleaning and painting the steel and railings on the upper and lower levels in order to preserve the bridge. These activities will take place on the southernmost section of the bridge in Charlestown and the project and is expected to be completed by 2019.

In order to allow MassDOT crews and contractors to safely conduct these operations, the travel lanes on Route 1 northbound and southbound on the Tobin Memorial Bridge in this area will be reduced during off-peak hours with temporary lane closures at times throughout the duration of the project.

The Tobin Memorial Bridge was erected in 1948-1949 and opened to traffic in 1950. It connects the Charlestown neighborhood of Boston with Chelsea 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.

Appropriate signage and messaging will be in place to guide drivers during these construction operations and MassDOT will provide more information regarding impacts as it becomes available.

MassDOT encourages drivers to utilize the appropriate travel resources throughout the duration of this project and make informed decisions regarding their travel plans. Those traveling through the area should be mindful of delays and traffic impacts, reduce speed, and use caution.

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