IlDOT US 52 Savanna-Sabula Deck-Tied Arch Bridge Replacement

CHALLENGE

This project included the replacement of an historic steel truss bridge and realignment of US 52 crossing the Mississippi River between Savanna, IL and Sabula, IA. The new 11-span bridge is comprised of three separate portions, two plate girder units, consisting of 10 spans totaling 1,908 ft, and the central 546-foot-long tied-arch span, perched 60 ft. above the main navigation channel. Overall, the new structure features two 12-foot driving lanes, each with 8-foot shoulders.

SOLUTION

This project included the replacement of an historic steel truss bridge and realignment of US 52 crossing the Mississippi River between Savanna, IL and Sabula, IA. The new 11-span bridge is comprised of three separate portions, two plate girder units, consisting of 10 spans totaling 1,908 ft, and the central 546-foot-long tied-arch span, perched 60 ft. above the main navigation channel. Overall, the new structure features two 12-foot driving lanes, each with 8-foot shoulders.

RESULT

This project included the replacement of an historic steel truss bridge and realignment of US 52 crossing the Mississippi River between Savanna, IL and Sabula, IA. The new 11-span bridge is comprised of three separate portions, two plate girder units, consisting of 10 spans totaling 1,908 ft, and the central 546-foot-long tied-arch span, perched 60 ft. above the main navigation channel. Overall, the new structure features two 12-foot driving lanes, each with 8-foot shoulders.

LOCATION

Mississippi River between Savanna, IL and Sabula, IA