Construction of Natcher Bridge - A series of pictures of the new William H. Natcher Bridge carrying U.S. 231 acros the Ohio River. Contains pictures dating from June 1997. - http://www.psci.net/~drmott/tournatch.html
The Ohio River Bridges - Project to build and upgrade cross-river facilities in the Louisville, Kentucky area. Site includes news, maps, and contact information. - http://www.kyinbridges.com/
Iron and Early Steel Bridges of Ohio - Provides a list of the locations of the remaining vehicular iron and steel truss structures erected in the state before 1920. - http://www.oldohiobridges.com/
Historical Bridges of Arkansas - Companion site to the show broadcast on the Arkansas Educational Television Network. Sorted by state region. - http://www.aetn.org/ahbridges/
Brent Spence Bridge - Project to rehabilitate or replace this sturcture which carries Interstates 71 and 75 over the Ohio River at Cincinnati. Site includes maps of planned alternatives, and feedback page. - http://www.brentspencebridgecorridor.com/
Covington-Cincinnati Suspension Bridge Committee - Volunteer group overseeing the Roebling Bridge over the Ohio River. Site includes news, photographs, and history. - http://www.roeblingbridge.com/
U.S. Grant Bridge Replacement Project - Includes information and photos about this new bridge to connect Portsmouth, Ohio to South Shore, Kentucky, as well as the bridge it is replacing. - http://www.dot.state.oh.us/dist9/Grant%20Bridge%20Page/USGrantBridge(a).htm
Selected Northeastern Ohio Bridges - Collection of photographs and information on disappearing historic iron and steel truss structures mostly along the Chagrin and Grand Rivers. - http://www.venangoil.com/bridgesohio.html
Oklahoma Bridges - Provides a photographic overview of historic steel and iron truss, wood and concrete facilities built circa 1890-1965. Includes photo galleries, some highway history and traces the history and development of civil and bridge engineering from the time peri - http://okbridges.wkinsler.com/
State of Ohio Bridge Photos - Complete coverage for state-maintained routes. Official site. - http://www.dot.state.oh.us/sfn/
Cincinnati-Transit.net - Contains details on transit, including bridges and major highways, in the Indiana-Kentucky-Ohio region. - http://www.cincinnati-transit.net/
Mackinac Bridge - Official information on the structure linking Michigan's two peninsulas. - http://www.mackinacbridge.org/
Detroit-Windsor Tunnel - Official site for the structure connecting Michigan and Ontario, Canada. - http://www.dwtunnel.com/
Bridges, Borders and Ferries - Michigan Department of Transportation page with synopses of major crossings, including toll rates. Also contains a history section. - http://www.michigan.gov/mdot/1,1607,7-151-9618---,00.html
Ambassador Bridge - Official information on this connection between Detroit, Michigan, and Windsor, Ontario, Canada. - http://www.ambassadorbridge.com/
Maumee River Crossing - Describes the plan to build a new fixed-span bridge to replace the drawbridge on I-280 in Toledo, Ohio. - http://www.lookuptoledo.org/