The three main components of a bridge are:

The three main components of a bridge are:

• A. Deck, Substructure, Superstructure
• B. Wearing Surface, Deck Joints, Drainage
• C. Roadway Appurtenances, Deck, Wearing Surface
• D. Substructure, Wearing Surface, Drainage

Answer: (A)

Bridges are built around three main structural parts that carry loads from the road to the ground: the deck, the superstructure, and the substructure. The deck is the riding surface that traffic travels on, and it includes the wearing surface that protects it and provides a smooth path for vehicles. The superstructure sits above the supports and includes the girders, beams, arches, or trusses that span between supports and carry the loads from the deck to the supports. The substructure consists of the foundations, abutments, and piers that transfer those loads down into the ground and provide the vertical and lateral support. The other options introduce elements like the wearing surface, drainage, joints, or roadway appendages. These are important for durability and maintenance, but they are not the three core structural components that define the bridge's primary load-carrying system.

Bridges are built around three main structural parts that carry loads from the road to the ground: the deck, the superstructure, and the substructure. The deck is the riding surface that traffic travels on, and it includes the wearing surface that protects it and provides a smooth path for vehicles. The superstructure sits above the supports and includes the girders, beams, arches, or trusses that span between supports and carry the loads from the deck to the supports. The substructure consists of the foundations, abutments, and piers that transfer those loads down into the ground and provide the vertical and lateral support.

The other options introduce elements like the wearing surface, drainage, joints, or roadway appendages. These are important for durability and maintenance, but they are not the three core structural components that define the bridge's primary load-carrying system.