I'm not aware of this concern. The bridge is built within normal sloping operating grades and, I suspect anyone who has a Class 1 driver's licence operating should have the skills to navigate the slope of that bridge.
Wally Schumann on Question 891-18(2): Deh Cho Bridge Maintenance And Repairs
In the Legislative Assembly on September 27th, 2017. See this statement in context.
Question 891-18(2): Deh Cho Bridge Maintenance And Repairs
Oral Questions
September 26th, 2017
See context to find out what was said next.