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The Tunnel Challenge
BUILDING BIG Home Page BUILDING BIG Site Map BUILDING BIG Labs BUILDING BIG Databank BUILDING BIG Glossary
Bridges
Domes
Skyscrapers
Dams
Tunnels
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Tunnel Basics
Roll up your sleeves and dig in to get started with these structures.

The Tunnel Challenge
Through mountains, under rivers, beneath cities ... tunnels are no boring story!

Wonders of the World Databank
Is there a light at the end of the tunnel? Find out when you check out these tunnels:

Central Artery/Tunnel Project (Big Dig)
Channel Tunnel (Chunnel)
Chesapeake Bay Bridge-Tunnel
Holland Tunnel
Hoosac Tunnel
London Underground
New York Third Water Tunnel
Paw Paw Tunnel
Seikan Tunnel
Thames Tunnel
Underground Canal

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Forces Lab
Find out how forces affect structures like tunnels in this hands-on workshop.

Who Builds Big?
Meet Miles Moffatt and Thomas O'Rourke, two engineers who get down and dirty with tunnels!

Tunnel Webography
Here's where you'll find links to more terrific tunnel resources on the Web.

BUILDING BIG: Tunnels
Learn more about the PBS broadcast program.

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