- Bridge Basics
A Spotter's Guide to Bridge Design
Photos, data and history for bridge and tunnel structures in Allegheny County and Pittsburgh, Pennsylvania.
- Building Bridges eThemes eMINTS
Learn about various types of bridges: beam, arch, truss, cable stayed, suspension, and others. Find out about different bridge designs. Learn what materials are used in bridge building. Discover what forces influence bridges and what engineers need to know before building a bridge. Includes photographs, schematic drawings, online games, video clips, and instructions how to build b
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