The Chelsea Street Bridge project continues in early 2012 with the new vertical lift structures and concrete bridge deck now completed and in place. Current work, seen at left, includes demolition of piers from the old bridge under the new structure.
To allow for the final work on this historic $125 million MassDOT project, the Chelsea Street Bridge over Chelsea Creek at the Boston/Chelsea line remains closed with detours in place.
The Chelsea Street Bridge project involves the replacement of a truss-type structure that spans 450 feet and will provide 175 feet of vertical clearance when raised. The new bridge will include four lanes of traffic and two pedestrian sidewalks.
This is the largest permanent lift bridge built in Massachusetts to date. To accommodate the massive size and tight space constraints in the bridge area, MassDOT contractors used an innovative technique of launching the truss across the river. The launching sequence of the truss bridge across the channel was carefully designed to minimize disruption of the navigation channel below. This launch process was completed in November 2011.
After the launch was successfully completed, the project moved to the concrete pours of the 450 foot long bridge deck, which required the project to enclose and heat the bridge structure because of colder early winter weather. The concrete pours were completed in late December 2011.
Project work now includes removing the old bridge piers below the new bridge. The contractor is making significant progress and working seven days a week and 24 hours a day to remove the 5 piers, which include segments up to 40 feet below the river bottom. Work on the bridge itself includes installation of bridge joints, barrier, and other safety items.
It is anticipated that all required work will be complete and allow a bridge opening to traffic by the end of April. MassDOT will announce publicly an exact opening date in advance.
South Coast Rail: Project of the Year Candidate posted on Oct 24
The South Coast Rail project will be under consideration for the North American Project of the Year, specifically for job creation, at next week’s North American Strategic Infrastructure Leadership Forum in Washington, D.C. The forum is hosted by the globally recognized firm CG/LA Infrastructure. Aconex, …Continue Reading South Coast Rail: Project of the Year Candidate
MBTA: Green Line Real-Time Tracking posted on Oct 23
Today, the MBTA will begin providing real-time information on the Green Line for the first time in the line’s 117 year history. Real-time data on the location of Green Line trains will be fed to the dozens of MBTA real-time apps. This will mark the …Continue Reading MBTA: Green Line Real-Time Tracking
RMV: Know Your Teen Driver Safety Facts posted on Oct 23
The Registry of Motor Vehicles during National Teen Driver Safety Week reminds us that motor vehicle crashes are the #1 killer of teens. Parental involvement can help reverse that trend. Know the facts: 1. Parental Involvement Did you know? Parents who set, monitor, and enforce …Continue Reading RMV: Know Your Teen Driver Safety Facts