The Living Bridge

http://www.snotr.com/video/7331/The_Living_Bridge
http://www.youtube.com/watch?v=eoUFw0s2PcI
http://science.howstuffworks.com/engineering/civil/bridge8.htm
http://rootbridges.blogspot.ca/

Of Interest
http://www.cbc.ca/news/canada/edmonton/story/2013/06/02/edmonton-living-garden.html
http://www.doerte-jasch.com/projects/living%20bridge/index.html
http://www.skyscrapercity.com/showthread.php?t=222923
http://kevoto.com/254
http://pricetags.wordpress.com/2008/08/27/loving-the-bridge/