CME designed the replacement structure in the tidal Jordan Cove area of Waterford, Connecticut. CME used our experience with prefabricated concrete bridge elements to reduce construction time and environmental impacts.
CME also provided extensive mapping of the area and worked with Connecticut’s Department of Energy and Environmental Protection to improve safety and access to this popular recreational area. Work included the installation of sidewalks.
This project involves the superstructure replacement of Jordan Cove Road over Jordan Cove in Waterford, CT and is funded under CTDOT’s Federal Local Bridge Program. The existing bridge, built in 1937, was a single span, reinforced concrete T-beam structure supported on stone faced, reinforced concrete abutments. CME was retained by the Town of Waterford to investigate replacement options and costs while minimizing impacts to the environmentally sensitive areas of Jordan Cove. Considering the fair condition of the substructure, potential impacts, and other factors, CME determined that a superstructure replacement was the best option at this site.
CME’s survey teams collected detailed information on the bridge structure and associated components and approximately 700 feet of approach roadways. Due to the sensitive nature of the cove, wetland inventories were performed to document existing vegetation that may be affected during construction. CME also provided hydrographic survey of the cove, which is approximately 30 acres in size, using a single beam echosounder in conjunction with RTK GPS. A thorough utility investigation was done due to the important sewer and water main that is attached to the bridge.
CME design proposed a prestressed concrete NEXT F beams with a cast-in-place concrete deck. The use of the NEXT F beams minimizes deck forming and reduces construction time. A water main and sewer main were relocated from the exterior of the existing bridge to between the beams of the proposed bridge. The existing stone abutments and wingwalls were cleaned and repointed within the tideline of the structure using temporary cofferdams to contain the in-water work.
CME worked with a sub-consultant to perform a tidal hydraulic analysis and investigate the scour potential at this site. The Flood Management Certification was also prepared and obtained for the work at this site. CME also coordinated this project with CTDEEP’s Office of Long Island Sound Programs (OLISP) to prepare and obtain environmental permitting for the work done on this project.