Every year at Notre Dame we have an annual Balsa Bridge Contest for those students currently in Physics 11 and 12. Each student must build a bridge that is able to support a certain amount of weight and must also make it look very presentable and durable.
Here is the current record holder:
2000 Winner and current record holder
120004 Matthew Sullivan
209. 4 kg
http://www.balsabridge.com/
http://www.myndrs.com/bridge07/index.html
Sponsors:
Here is an additional link found on the Balsa Bridge website:
http://www.goldengatebridge.org/
Vancouver is a city of many interesting bridges. Here's my favorite:
The Capilano Suspension Bridge
A bridge that has "cracked under the pressure"