IBI Group, working for the City of Cincinnati, prepared a conceptual design to redevelop a 110 acre brownfield site and 20 acres of under-utilized land into a roadway system that would improve access to the interstate, reduce congestion, and improve air quality.
ClientCity of Cincinnati
Working with Cincinnati on the sustainable redevelopment of Oakley
This project has been a significant factor in the redevelopment of the Oakley neighborhood and helped create more than 1,000 jobs in the area. IBI helped secure a $15M Federal grant to pay for the construction and our team was responsible for:
- 7,100 linear feet of new roadway in an urban environment;
- Bridge design over an active railroad and a US Army Corps 500-year flood protection project, which required raising the intersection of Duck Creek Road and Kennedy Avenue more than nine feet;
- Lighting, seven traffic signals and two retaining walls; and
- Project management of the National Environmental Policy Act (NEPA) process.
Due to the urban nature of the project, the impact on utilities was extensive. IBI coordinated directly with the affected utilities to mitigate the impacts, including:
- Relocation of a 20” high pressure gas main;
- Stabilization and protection of two 137 kV electric transmission towers with retaining walls;
- Relocation of distribution level electricity, phone, fiber and cable; and
- Relocation of distribution size gas mains.
Early on in the project, IBI Group recognized an opportunity to separate roughly 25 acres from the combined sewer system that frequently overflows into the adjacent creek. Our team redesigned the sanitary and storm sewers systems in the area, preventing 12 million gallons of sewage from entering the adjacent creek.
Working with Greater Cincinnati Water Works, IBI Group completed the design of 2.5 miles of 48” diameter water main to increase the integrity of the existing water network. As part of the work, our team designed a self-supporting steel pipe that serves as both the bridge and the carrier of water over the Little Duck Creek. The project included trenchless crossing under active railroad tracks for water mains, sanitary sewers and storm sewers. Extensive coordination was required with the railroad operator and the local transit agency that owns the railroad tracks.
Jeffrey B. Koehn
Director | US Transportation Lead, Infrastructure
Mike Murray PE LEED AP
Director | Office Lead, Columbus
Senior Project Manager