For more information about the bridge building contest and for a picture of Matt Sullivan's bridge, check out this website: http://www.balsabridge.com/
For pictures of the bridges last year (including photos of them being destroyed), visit this website: www.myndrs.com/bridge07/index.html
Here is a pretty cool link that I found on the balsa bridge website: www.hevanet.com/bridgink/
The contest has been going on for many years, and throughout those years ND has had many sponsors, such as BCIT, UBC, SFU, Professional Engineers and Geoscientists of BC. For the logos of these sponsors click here.
Vancouver has many interesting bridges - here's my favourite: the Skytrain Bridge