Which load moves along the entire length of the bridge during service?

• A. Bridge Loads
• B. Dead Load
• C. Live Load
• D. Water Current

Answer: (C)

Live loads are external loads that can change in magnitude and location while the bridge is in service. Vehicles, pedestrians, and other traffic move across the deck, so the load pattern can sweep along the entire length of the bridge. In contrast, dead loads are fixed permanent weights of the structure, and environmental factors like water current affect parts of the bridge rather than moving along the deck in a traveling pattern. “Bridge loads” is a broad term and doesn’t specify the moving characteristic. Thus, the load that moves along the entire length during service is the live load.