Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
BUILDING BIG LogoImage with 5 links within the image.
Tunnel
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
_  
Workers resting on wooden supports in the face of the Hoosac Tunnel, North Adams, Massachusetts
Hoosac Tunnel
The Smithsonian Institution

Go to Tunnel Basics
View Databank Entry


 
_