hile buildings may be easy to protect in areas of low velocities, people are not always safe. The total impact of moving water is related to the depth of the flooding. Studies have shown that deep water and low velocities can cause as much damage as shallow water and high velocities (see graph). Again, the summary data presented in this Plan should be augmented by site-specific data, such as depths and velocities, when looking at mitigation alternatives at any single location.