Cianbro
Baltimore, MD 21226
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Brightman Street Bridge
Project Information
- Project Location:
- Somerset, MA
- Status:
- Completed - Jan 2014
- Structure Type:
- Bridge
Scope Of Work
The Cianbro/Middlesex Joint Venture Team constructed a new twin double-leaf bascule bridge which spans over 1,000 feet and has 60 feet of clearance over the Taunton River. The bridge's clearance allows marine traffic to pass underneath the bascule while in the down position in a 200-foot wide shipping channel. Construction included the approach and bascule span piers and superstructure, the control house, abutments and retaining walls, and installation of the electrical and mechanical equipment required for the operation and control of the movable bridge. All marine traffic within the active shipping channel was continuously maintained in accordance with the United States Coast Guard regulations.
Project Details
Installed erosion, siltation, and dust control devices
Performed structural and cofferdam excavation
Constructed and placed reinforced concrete piers and abutments
Constructed retaining walls along Route 70 and other roadways
Placed reinforced concrete bridge decks, bridge railings, and joints
Constructed portions of the superstructure over roadways
Erected a twin double-leaf bascule span with a trunnion to trunnion 300-ft span
Erected steel tub girders for the east and west approaches
Built a control house for the bascule span
Installed electrical and mechanical equipment, which included drive motors, brakes, span locks, warning gates, and lights, as well as heating/ventilation systems and associated plumbing
Managed vehicle traffic on Route 70
Constructed roadways, ramps, walkways, signs, traffic signals, street lighting, pavement markings, and finished landscaping
In-water barge work including dredging within the river
Lean, Innovative, and Unique Project Solutions
As the final contract to complete the Brightman Street Bridge Projects, portions of the substructure were already completed, forcing the approach superstructure steel, bascule span steel, mechanical equipment submittals, and approvals to be on a tightly-scheduled critical path. Coordination between all stakeholders had to be executed efficiently as the scope included traffic control on roadways and waterways, major excavation on land and dredging within the river, in-water/barge work, and electrical and mechanical installation.