Ohio Department of Transportation:Official website.
The Unofficial Ohio State Highways Web Site:Route log including former routings.
Cincinnati Roads: Contains video clips of various examples.
Cincinnati-Transit.net: Contains details on transit, including bridges and major highways.
David Smith's Columbus Roads: Includes photographs, lane diagrams, and an opinion page.
Duck Creek Road: Overview of this and other area streets in Cincinnati which were altered to accommodate the construction of Interstate 71.
Innerbelt Integration Initiative: A group advocating the completion of Akron's Innerbelt freeway (State Route 59). Site includes background and video clips of the facility.
Lake Erie Circle Tour Online: Part of the Great Lakes Circle Tours.
North South Transportation Initiative: Plan involving I-75 and other modes of transportation between the area north of Dayton and Northern Kentucky. Includes maps, FAQ, and feedback option.
Ohio Route One: Discusses the 1960s routing of this route.
Ohio State Route 66 Internet Tour: A guide to this road following the western boundary.
Ohio Turnpike Commission: Official page. Includes Turnpike toll rates and construction information.
The Ohio Construction Information Association: OCIA services include research for anyone seeking data on the infrastructure, construction issues, multimodal transportation planning, and water and sewer issues.
The Ohio Regional Road Pages: Coverage of each region of the state including photographs, history, and links.
The Road Home: Covers topics from the southwest part of the state, primarily around Dayton.
Toledo's Highways and Byways: Articles and photographs from the two-state region.