Which component provides a smooth riding surface and protects the deck from the effects of traffic and weathering?

Which component provides a smooth riding surface and protects the deck from the effects of traffic and weathering?

• A. Carries the live load and traffic transfer function
• B. Provides a smooth riding surface and protects the deck from the effects of traffic and weathering
• C. Wearing Surface
• D. Removes water from the bridge

Answer: (C)

The top layer of the bridge deck, known as the wearing surface, is the part that vehicles ride on and that shields the underlying deck from wear and weathering. It is designed to be smooth for a comfortable, safe ride and to resist abrasion, moisture, and freeze-thaw effects, protecting the structural deck beneath. While the deck itself carries and transfers loads, and drainage handles water removal, the wearing surface sits above to provide the protective, smooth riding interface. That combination of ride quality and deck protection makes the wearing surface the correct choice.

The top layer of the bridge deck, known as the wearing surface, is the part that vehicles ride on and that shields the underlying deck from wear and weathering. It is designed to be smooth for a comfortable, safe ride and to resist abrasion, moisture, and freeze-thaw effects, protecting the structural deck beneath. While the deck itself carries and transfers loads, and drainage handles water removal, the wearing surface sits above to provide the protective, smooth riding interface. That combination of ride quality and deck protection makes the wearing surface the correct choice.