From PWGSC
The Burlington Canal Lift Bridge is one of the engineered assets operated by Ontario Region, and is now over 50 years old. The bridge has lifted over 200,000 times over its life, all with original controls, drive motors and electrical cabling. As you can imagine, the crew responsible for maintaining this feat of engineering has done a magnificent job keeping it operational.
This spring, a major project to retrofit the bridge with new mechanical and electrical systems will begin. The controls, drives and overhead cables replacement project will keep the bridge lifting for marine traffic for years to come.
Read More;
http://www.tpsgc-pwgsc.gc.ca/ontario/burlington-eng.html