Departments of Transportation Links – The Historic Bridge Foundation provides this comprehensive list of all state Departments of Transportation (DOT) websites, with additional links for the cultural resources and historic bridge pages for state DOTs. In addition, links to county highway officials for each state are given when available as well.

State Historic Preservation Offices Links – The Historic Bridge Foundation provides this comprehensive list of all state pages for State Historic Preservation Offices.

Federal Highway Administration Field Office Links – The Historic Bridge Foundation provides this comprehensive list of all pages for the FHWA Field Offices which represent the FHWA for each respective state.

Historic Bridge Marketing Pages – One way in which historic bridges may be preserved is when a bridge slated for replacement is given to a new owner for relocation and restoration/rehabilitation. The Historic Bridge Foundation provides this list of websites showing historic bridges available for reuse.

National Register of Historic Places Databases – These are databases for National Register of Historic Places and other historic surveys that include information on historic bridges.

VJM Metal Craftsman A clearinghouse of news, information, articles, research, and workshops focused on the restoration and history of metal truss bridges. VJM Metal Craftsman is run by Vern Mesler, a leading metal truss bridge restoration expert. A strong focus is placed on the restoration of metal truss bridges with attention paid to in-kind restoration by retaining original materials or replicating deteriorated parts of a truss bridge, as well as the use of hot metal riveting in restoration.

HistoricBridges.org – With photos and information for historic bridges in North America, a leading Internet source of information and advocacy for historic bridges.

Historic Bridges of the U.S. – A massive database with information and photos on historic bridges in the United States.

Bridgemapper.com – “The Evolution of Pittsburgh’s River Bridges” Offers a map of historic bridges in Pittsburgh along with a photo and information for each bridge.