BUILDING BIG Bridge basics
Bridge Basics
Tuesdays in October on PBS (check local listings) _  

Bridges | Domes | Skyscrapers | Dams| Tunnels

Chesapeake Bay Bridge-Tunnel
Continuous span
beam bridge
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The continuous span...
gives beam bridges the ability to span great distances. A single beam bridge rarely spans more than 250 feet. But, as in the Chesapeake Bay Bridge-Tunnel, several beam bridges can be linked together, creating what is called a continuous span.

Back to Bridge Basics

_There's even more to explore at the BUILDING BIG web site, check it out at www.pbs.org/buildingbig.



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BUILDING BIG is a coproduction of the WGBH Science Unit and Production Group, Inc., and is presented on PBS by WGBH Boston.

Major funding is provided by the National Science Foundation. Additional funding comes from the National Endowment for the Humanities, The Arthur Vining Davis Foundations, the Corporation for Public Broadcastin, and public television viewers.

National corporate sponsorship is provided by the American Society of Civil Engineers and by Siemens.

The BUILDING BIG web site was produced for PBS Online by WGBH.
BUILDING BIG web site ©2000 WGBH Educational Foundation.