Western Hills Viaduct

This CMAR project for the City of Cincinnati replaces the existing Western Hills Viaduct, an important link between the West Side and Downtown/Uptown. This project is over one of the most active railyards in the country, and will construct a new Extradosed Bridge over the Queensgate Railyard, as well as demolish the existing aging structure.

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Western Hills Viaduct


A new extradosed bridge, approximately 2300’ long will be constructed over the CSX Queensgate Railyard. This work is expected to begin in 2025 and will last through 2030. The existing viaduct will remain in place for through traffic until the new bridge is finished, after which a complex demolition plan over the railroad will begin. Overall completion for the project is currently expected in 2030.
Additional information from the owner can be found at https://www.cincinnati-oh.gov/dote/dote-projects/western-hills-viaduct/


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.


This unique complex bridge project is an excellent opportunity to join Kokosing for a signature bridge project in the Cincinnati area. With a project of this complexity, there are ample options for career advancement, learning, and experience. This project will be in the design phase and awaiting utility relocations through 2025, and will be largely staffed by Project Managers and Engineers during this time. As the project progresses to later 2025 and through 2030, the needs will increase for Project Superintendents, Foremen, and Trades personnel.