True or false: Bridges freeze before road surfaces.

Bridges freeze before road surfaces due to several factors related to their construction and exposure. Bridges are typically made of steel and concrete, materials that do not retain heat as effectively as asphalt or packed dirt, which are common in typical road surfaces. Additionally, bridges are exposed to air both above and below, which allows for quicker cooling. Because they do not have the insulating properties of the ground beneath a road surface, where heat is retained, they are more susceptible to freezing conditions.

Hence, it is true that bridges can develop ice more rapidly, especially in conditions where temperatures drop quickly or where there is moisture present. Understanding this difference is important for safety, as drivers should be more cautious when approaching bridges during icy or cold weather conditions.