Great Island Road Bridge (No. 499) Pre-Bid Support | Bridge Replacement Design Narragansett, Rhode Island
CLIENT: Turino Group REFERENCE: David Giardino,
President DESIGN COMPLETION: 2013
CONSTRUCTION COMPLETION: 2014
PROJECT COST: $3 Million
The Great Island Road Bridge carries Great Island Road over Point Judith Pond and connects Galilee to Great Island in Narragansett, Rhode Island.
This $3.0 million project replaced a structurally deficient, load-restricted 9-span bridge over a U.S. navigable waterway. Inspections had found increased deterioration of the timber deck and the bridge, which connects Galilee to Great Island and Little Comfort Island, which was scheduled to be replaced in 2014. Steere Engineering supported RIDOT and Turino Group with pre-bid support services including early 3-D representations of the bridge replacement project.
The new 3-span bridge is located on the existing bridge alignment. The bridge is approximately 200 feet in length between abutments and 48.5 feet wide out-to-out. The new bridge width accommodates two 11-ft traffic lanes, two 4-ft shoulders, and two 5-ft sidewalks. Approximately 1,685 feet of combined roadway approach work was required on both sides of the bridge. All parts of the existing bridge was removed in their entirety with the exception of the abutments, which would be removed to elevation +6.09 (NAVD88). The bridge project was conducted in a phased sequence to allow one-way vehicular traffic during an approximate two-year construction schedule.
Steere Engineering provided 3-D drafting and modeling services for the bridge replacement design using Rhino 3-D. The model was later converted into AutoCAD. The existing and proposed bridges were modeled in three dimensions and each concrete pour, pile, beam, or other element to be constructed was modeled by Steere as its own object; Turino used Synchro software to establish a 4-D schedule. In addition, Steere modeled the earthwork, drainage, water lines, temporary traffic control, and traffic striping for the various construction phases.