The Bridges Project The Bridges Project: Online database of significant bridges compiled by the Department of Civil Engineering at Rice University. Includes photographs. (Bridges and Tunnels) http://128.42.22.5/
Structurae: International Database and Gallery of Structures Structurae: International Database and Gallery of Structures: Compilation of many features worldwide, including bridges and tunnels. Some entries include photographs. (Bridges and Tunnels) http://www.structurae.de/
Bridge of the Month Quiz Bridge of the Month Quiz: An image is posted inviting entrants to identify the feature. A free copy of a book on the subject is awarded to one correct entrant per month. (Bridges and Tunnels) http://www.bridgeink.com/
The West Point Bridge Design Contest The West Point Bridge Design Contest: Annual competition sponsored by the American Society of Civil Engineers. Includes free software download. (Bridges and Tunnels) http://bridgecontest.usma.edu/
MrTunnel.com MrTunnel.com: Discusses many projects. (Bridges and Tunnels) http://www.mrtunnel.com/
The Tunnel Page The Tunnel Page: The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes. (Bridges and Tunnels) http://home.no.net/lotsberg/