Western Hills Viaduct Replacement.

The Western Hills Viaduct connects I-75 and major roads on Cincinnati’s West Side and in Hamilton County to the Downtown and Uptown areas of the city. It is a major transportation link that carries more than 55,000 vehicles a day over the Mill Creek Valley and a large, active railroad yard. 

Originally built in the early 1930s, the viaduct is reaching the end of its useful life. The City of Cincinnati and Hamilton County are leading a joint effort to replace the 90-year-old viaduct with a new “extradosed” bridge immediately to the south of the current viaduct. 

The existing viaduct will remain in place for through traffic until the new bridge is finished in 2030.