Driving safely on icy bridges
As record-breaking cold weather continues to grip most of the country, many interstates and highways have been shut down due to icy conditions.
With another shot of freezing temperatures possible this week, MDOT is urging drivers to use caution with traveling.
News 25’s Meteorologist Brantly Keiek explains why bridges freeze before roads and how to stay safe when driving on ice.
With temperatures forecast to be at or below freezing again this week, crews continue to treat bridges, overpasses, and major highways.
You may have seen the yellow warning signs with black letters that say ‘bridge ices before road.’ Well, there’s a reason for that.
Roads on the ground, like the streets in your neighborhood, tend to hold onto their temperatures a bit longer than bridges.
Most roads lose heat evenly, but unlike normal roads, which have ground to help insulate them, cold air can reach above and below bridges, resulting in quicker heat loss.
Simply put, bridges lose heat on just one side whereas bridges lose heat on two.
If the air falls below freezing, all it takes is a little moisture to create black ice. If you encounter black ice on the road, don’t slam on the brakes just take your foot off the accelerator and try to keep the steering wheel as straight as possible.
But the best way to avoid skidding across the ice? Just stay home until it melts.