Which bridge surface option is common for longer-span bridges or those carrying heavy traffic loads, and may be constructed using precast concrete panels or poured-in-place concrete?

• A. Asphalt pavement
• B. Composite materials
• C. Bridge pavement
• D. Concrete pavement

Answer: (D)

On longer-span bridges or decks carrying heavy traffic, you want a surface that is stiff, durable, and good at distributing loads across the width of the bridge. Concrete pavement provides exactly that: a rigid surface that transfers wheel loads efficiently, reducing deflection and crack growth. It can be built as precast concrete panels or poured-in-place slabs, which is particularly advantageous for long spans because precast panels speed construction and minimize disruption to traffic. In comparison, asphalt is flexible and more prone to rutting and deformation under heavy or repetitive loads, making it less ideal for major bridge decks. The term “composite materials” isn’t the standard approach for bridge decks in this context, and a general “bridge pavement” label doesn’t specify the performance benefits of a concrete, long-life solution.