Title: Why do Bridges Freeze Before Roads? (with pictures)
Headings: Why do Bridges Freeze Before Roads?
Why do Bridges Freeze Before Roads?
Mary McMahon
Is Amazon actually giving you the best price? This little known plugin reveals the answer.
Mary McMahon
📦Amazon Doesn't Want You to Know About This Plugin
Learn about a little known plugin that tells you if you're getting the best price on Amazon.

Content: Most people who live in cold regions have seen signs which say “bridge freezes before road,” and many people are aware that caution should be used when driving on bridges during cold weather since they can freeze easily. Bridges freeze before roads for a number of reasons, most of which involve very basic science. Being aware of the conditions which make bridges freeze will make you a better driver, and if you live in a cold region of the world, make sure that newcomers to your area are aware of the danger of bridges during cold or icy weather. When driving in cold weather, check for tire balding or damage on a regular basis. There are three main reasons why bridges freeze before roads. The first is that a bridge is exposed from below and above, unlike a roadway. Roads don't freeze over as quickly because they can take advantage of insulation and warmth from the soil below. Bridges, on the other hand, are beset with cold temperatures from all sides, which can cause them to ice over quickly. Bridges also freeze rapidly because many of them are located over cold spots, like frozen rivers or deep ravines. Unlike roads, bridges are exposed to cold temperatures from all sides, which cause them to freeze over faster.