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Safe driving and emergenciesQuestion 276 of 296

Which parts of a highway freeze first and thaw last?

  1. Straight sections in the sun
  2. Roads next to a river
  3. Shaded sections, bridges and overpasses
  4. Roads with new pavement
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Correct answer: Shaded sections, bridges and overpasses

Shaded sections, bridges and overpasses freeze first and thaw last. Expect ice there even if the rest of the road looks clear.

Source: Nova Scotia Driver's Handbook (Service Nova Scotia, 2000, reprinted with revisions to 2017), Chapter 5, Adverse Driving Conditions: Snow, frost, and ice, page 140

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Questions last reviewed: 18 October 2026