SR 25 @ MIDDLE RIVER IN PORT WENTWORTH

under construction

The bridge on SR 25 over Middle River, Structure ID 051-0055-0, was built in 1922 and widened in 1953. The bridge consists of 69 spans of Reinforced Concrete Deck Girders (RCDG’s) on concrete caps with concrete piles and columns. This bridge was designed using an HS-15 vehicle, which is below current design standards. The overall condition of this bridge would be classified as fair. This bridge is classified as having an unknown foundation and therefore could be at risk for scour. There are signs of differential settlement at several bent locations and estimated up to 2 inches at Bent 7. Due to the age of the structure, the structural integrity of the bridge pertaining to the design vehicle, the numerous spalls with exposed reinforcing steel throughout the structure, and the unknown foundation and differential settlement of the substructure, replacement of this 94-year old bridge is recommended.