Relocated Route 403

East Greenwich and North Kingstown, RI
Owner: Rhode Island Department of Transportation

GRA’s flagship project is the Relocated Route 403 freeway, a 4.5-mile controlled-access highway connecting Route 4 in East Greenwich to the Quonset Business Park in North Kingstown, RI.  Included in this project were 16 new bridges and two bridge rehabilitations.  The new bridges span waterways, railroads (including the electrified Amtrak main line) and roads.  Some carry the freeway, while others carry ramps or other roadways, such as Post Road (US Route 1). 

 GRA investigated alternative bridge types for each individual bridge, with both steel- and concrete-girder bridges ultimately being designed and constructed.  Single- and multi-span bridges are included in the project.  GRA designed the rehabilitation of the existing Frenchtown Road bridge over the Hunt River, and then designed the freeway bridge to pass over it.  The second bridge rehabilitation involved the multi-span Frenchtown Road bridge over Route 4.  

The photographs shown include selected bridges on the project that were designed by GRA.