1. The Port Mann Bridge
By: Juan Decena and Ming?

2. The Problem
- Snow and ice building up on cables
- When they get too heavy, fall onto traffic
- Has caused many injuries and damages
- Will occur every winter

3. The Solution
Cable Sweepers

4. How Does it Work?
• A motor moves the device up and down
• The four scrapers dislodge snow and ice in path
• Brushes behind each scraper remove any
remaining snow
• Powered by electricity going through the wires

5. How Much Does it Cost?
• The device
– Designing
– Creating
• No real issues
• Materials are easily available
• Cheap

6. How Much Does it Cost?
• Installation
– Biggest Problem
– Generally cheap, can be done quickly
– Bridge will be closed for a small amount of time
• Will cause inconvenience for drivers
• Get around by avoiding busy times

7. How Much Does it Cost?
• Maintenance
• Lower costs, short-term
– Hire somebody to monitor at all times
– Device is battery powered
• Higher costs, long-term benefits
– Set up sensors, controls device remotely
– Set up more sustainable power source
– Repairing
• Device is simple

8. Hazards
• To drivers
– Off chance that the device or a wire would
fall/malfunction
• To environment
– If they are battery powered, they would have to
go somewhere