Since bridges and overpasses have no contact to the ground, they do not have the advantage of ground temperatures that are warmer than the air above. The warmer ground below can sometimes keep the road surface warm enough to prevent ice from forming.

Cold air hits a bridge from the top, bottom and both sides, while regular road surfaces are only hit from the top. Even when the regular road is clear, a bridge may be covered with snow and ice. This is the reason why bridges become icy even if the road before or after them are not and makes bridges particularly dangerous.

Any precipitation when temperatures are near or below freezing could cause ice to form on a bridge. In addition, if ice is forming on your mirrors and windshield, chances are it is forming on any bridges you approach as well.

Here are some tips to stay safe on bridges and overpasses during the winter months:

Pay attention to the weather
Make it a routine to check the weather forecast during the winter months. Being aware of road conditions will help you be more prepared.

Slow Down
Slow down and pay attention to your surroundings, especially over bridges. When approaching an icy bridge, slow down; moving at a higher speed means you are more likely to hit a patch of ice and lose control.

Keep a safe distance from the vehicle ahead of you
When weather conditions deteriorate, maintain a safe interval between you and the car ahead of you. Avoid braking, changing lanes, or accelerating on the bridge: If the bridge is icy, any sudden moves can make your vehicle slip, slide and spin.

Turn into a slide
If you are sliding, do not hit your brakes, it can make the slide worst. Turn your wheels in the direction the back of the vehicle is sliding.

During the winter, bridges are the first to freeze and last to melt. Stay alert and follow these tips to avoid slipping and sliding.