The bridge type in which the deck is placed on the top of the main structure.

• A. Through Bridge
• B. Deck Bridges
• C. Straight Bridges
• D. Highway Bridge

Answer: (B)

In a deck bridge the roadway sits on top of the main structural members, so the deck is visible and carried by girders or a truss below it. This arrangement means traffic loads go directly onto the supporting frame from above, with the structural elements beneath the deck carrying the forces. It’s why this option is described as deck bridges—the term specifically denotes a deck placed on top of the supporting structure. In contrast, a through bridge has the deck located within the frame of the structure, so you drive through the sides or between the supporting members rather than on top. The other terms aren’t standard classifications for where the deck resides, so they don’t describe the deck-on-top arrangement.