Great Island Road Bridge (No. 499)
Pre-Bid Support | Bridge Replacement Design
Narragansett, Rhode Island
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 will replace 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—is scheduled to be replaced in 2014. Steere Engineering supported RIDOT and Turino Group with pre-bid support services including early 3D representations of this bridge replacement project.
The new 3-span bridge will be located on the existing bridge alignment. The proposed bridge will be ~200 feet in length between abutments and 48.5 feet wide out-to-out. The new bridge width will accommodate two 11-ft traffic lanes, two 4-ft shoulders, and two 5-ft sidewalks. Approximately 1,685 feet of combined roadway approach work will be required on both sides of the bridge. All parts of the existing bridge will be removed in their entirety with the exception of the abutments, which would be removed to elevation +6.09 (NAVD88). The bridge project will be conducted in a phased sequence to allow one-way vehicular traffic during an approximate two-year construction schedule.
Steere Engineering provided 3D drafting and modeling services for the bridge replacement design using Rhino 3D. 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 4D schedule. In addition, Steere modeled the earthwork, the drainage, water lines, the temporary traffic control, and the traffic striping was modeled for the various construction phases.
OWNER: RIDOT/Turino Group
DESIGN COMPLETION: 2013
REFERENCE: David Giardino, President (Turino)
CONSTRUCTION COMPLETION: 2014
PROJECT COST: $3 MILLION