Dalton Street over I-90

Project Overview:

The scope of work includes full concrete bridge deck replacement of the Dalton St Bridge over I-90, MBTA, and Cambria Street in Boston MA in (2) two phases over a project duration of 18 months. Work includes:

• Demolition of concrete bridge deck
• Cleaning and painting of all structural steel girders
• Replacement of all bridge bearings
• Structural steel repairs
• Forming and placement of new concrete bridge deck and sidewalks
• Installation of new bridge railing and protective fence
• Installation of new traffic signals
• Replacement of approach concrete sidewalks and wheelchair ramps
• Milling and paving of bridge approaches

Key Challenges Overcome:

Bridge deck replacement project located in a dense urban downtown location has many logistical challenges including limited work areas and heavy pedestrian and vehicular traffic. Existing utilities located in 8 of the 10 each girder bays are an additional challenge to safety work around.