Coastal and Floodplain Construction Inspector's Practice Exam

What is the definition of a breakaway wall?

1. Any structural wall required for support

2. A wall that prevents floodwaters from entering

3. A non-structural wall that collapses during flooding

4. A wall reinforced to withstand storm surges

The correct answer is: A non-structural wall that collapses during flooding

A breakaway wall is specifically designed to be a non-structural element that allows for the controlled collapse during a flood. This type of wall serves an important function in minimizing damage to the more critical structural elements of a building. When floodwaters rise, a breakaway wall will yield under pressure, effectively allowing water to flow through without causing significant damage to the building’s foundation or other structural components. This design is especially relevant in coastal areas where the risk of flooding is prevalent. By permitting the wall to collapse, it reduces the overall force of the water acting against the structure. This is crucial for maintaining the integrity of the building above, thereby enhancing safety and sustainability in flood-prone regions. The other definitions provided do not account for this specific design intent and function of breakaway walls, which focuses on the idea of allowing controlled failure ahead of more critical building components in flood conditions.