Structural integrity refers to the ability of a structure, like a bridge or a building, to withstand its intended load without experiencing failure. This means that the materials used, such as steel or concrete, must be strong enough to support the weight and forces acting on them. Engineers assess structural integrity to ensure safety and durability, preventing accidents and collapses. Maintaining structural integrity involves regular inspections and maintenance. For example, a dam must be monitored for cracks or erosion to ensure it can hold back water safely. By prioritizing structural integrity, we protect lives and investments, ensuring that our infrastructure remains reliable and functional.