Barton Corner Bridge Project

Barton Corner Bridge

The Barton Corner Bridge carries four lanes of I-95 plus two auxiliary lanes at a busy interchange with Route 2 on the Warwick/West Warwick line. It provides direct access to the New England Institute of Technology; another limited access highway called Route 4, the gateway to South County; and one of Rhode Island's busiest retail corridors.

We took a page from the Iway project in our approach to replace this bridge. Using accelerated bridge construction, we built two halves of the bridge on land adjacent to the overpass, and then moved them into place. This enabled us to build the bridge much faster compared with conventional construction methods, which would have taken twice the time. This approach also allowed us to do the work with no impact to Interstate traffic prior to installation.

We installed the bridge by "driving" them into place using self-propelled modular transporters, the same devices we used to move the Iway's signature arch bridge onto barges at the Quonset Business Park before we floated them up Narragansett Bay to Providence.

Vital Stats:

Age: Built in 1958, last rehabilitated in 1976

Condition: The bridge's piers and foundation were showing signs of advanced deterioration. We added a steel shoring system to support the bridge with no reduction in carrying capacity. The bridge also had damage to main girders that have been struck by overheight trucks, which required us to establish lane shifts for both I-95 North and South.

Length & Location: 87 feet, at Exit 8 on the Warwick/West Warwick border.

Traffic: Over 72,000 daily vehicle crossings.

Replacement Cost & Contractor: $6.4 million contract with D'Ambra Construction of Warwick, R.I.

Current Activities: Both bridge segments have been installed. Additional work will continue above and below the bridge through the fall.

How We Did It - Bridge Installation Sequence Maps

Click any map to enlarge

Step 1

Adopt-A-Highway sign

Construction of I-95 North Bridge with Route 2 Open

Step 2

Adopt-A-Highway sign

Construction of I-95 North Bridge with Route 2 Closed

Step 3

Adopt-A-Highway sign

Construction of I-95 South Bridge with Route 2 Open

Step 4

Adopt-A-Highway sign

Construction of I-95 South Bridge with Route 2 Closed

Project Timeline

Work on the project began in Fall 2013 with advance work on the existing bridge's walls and beams and fabrication of the new steel girders. Assembly of the new bridge began in Spring 2014 and the new bridge segments were moved into place in August 2014.

The current schedule has the project wrapping up by the end of this year. See below for more details:

Date Milestone
Fall 2013 Preliminary work including minor repairs of the existing structure.
April 2014 Begin construction of temporary footings for off-site bridge construction.
May 2014 Assemble main steel girders on temporary work platform.
June-July 2014 Pour the concrete decks for both bridges.
July-August 2014 Prepare existing bridge supports to accept new bridge decks.
Mid-August 2014 Replacement of northbound bridge. On-ramp from Route 2 North to I-95 South temporarily closes. Two non-consecutive temporary closures of Route 2 under the bridge are expected during this timeframe.
Late August 2014 Replacement of the southbound bridge. On-ramp from Route 2 North to I-95 South and off-ramp from I-95 South to Route 2 South temporarily close. Two non-consecutive temporary closures of Route 2 under the bridge are expected during this timeframe.
October-November 2014 Restore median barrier and remove crossover roads. Final paving of I-95 and Route 2. Project concludes.

Watch Our Bridge Project Live!

Our Moving Crew

Example of SPMT

These are the self-propelled modular transporters - called SPMTs for short - we used on the Iway project. Each is capable of moving objects in excess of 3,500 tons, and were used to carry the new Barton Corner Bridge segments into their final position. Click on the photo to enlarge.