A bridge collapse occurs when a bridge fails to support its intended load, leading to a sudden and often catastrophic failure. This can happen due to various factors, including structural weaknesses, poor maintenance, natural disasters, or excessive weight. When a bridge collapses, it can result in significant damage, injuries, or even fatalities. Investigations into bridge collapses typically involve examining the design, materials, and construction practices used. Engineers and safety officials often assess the condition of similar structures to prevent future incidents. Regular inspections and maintenance are crucial for ensuring the safety of bridges, such as the Golden Gate Bridge or the Tacoma Narrows Bridge.