William H. Harsha Bridge
Image Library - William H. Harsha Bridge Photograp, Maysville Cable Stayed Bridge, William H. Harsha Bridge, William H. Harsha Bridge, William H. Harsha Bridge (Maysville Bridge)
A Span For All Seasons
A collection of photographs of facilities and a large worldwide inventory of suspension bridges.
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.
The Bridges Project
Online database of significant bridges compiled by the Department of Civil Engineering at Rice University. Includes photographs.
The Tunnel Page
The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes.