At more than 900-feet long, the Ironton-Russell Bridge has the longest span that the Ohio Department of Transportation has ever constructed. The bridge replacement project entails the construction of a cast-in-place concrete, cable-stayed bridge over the Ohio River with structural steel approaches and reinforced concrete girder superstructure on the main span. The bridge connects the towns of Ironton, Ohio and Russell, Kentucky.
The $82.9M project began in February of 2012 and is expected to be completed in the spring of 2016. The scope of the project requires cast-in-place concrete piers with an approach superstructure containing three million pounds of structural steel erected from land-based equipment. The entire main span is cast-in-place, reinforced concrete, utilizing cable stays to construct the bridge. Originally designed to be constructed by balance cantilever methodology, Brayman revised the method to construct the back span on falsework and only cantilever on the main span.
Foundation units consist of 37 large diameter drilled shafts ranging in size from 42″ to 96″ diameter with overall lengths up to 70′ and rock sockets up to 30′, as well as HP 12×53 piles driven up to 80′ into bedrock. Additionally, earthwork, drainage, minor utilities and asphalt paving are required to complete the approaches to the new structure.