Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
BUILDING BIG Image with 5 links within the image
The Bridge Challenge
BUILDING BIG Home Page BUILDING BIG Site Map BUILDING BIG Labs BUILDING BIG Databank BUILDING BIG Glossary
Bridges
Domes
Skyscrapers
Dams
Tunnels
Buy the DVD
_  

Congratulations!

Location 4: Arch Bridge
Congratulations!



This is the perfect spot for an arch bridge. The rocky bluffs will support the abutments, and no towers or piers are needed because the arch shape can support itself.

But there is a problem
But there's a problem...

  _
_