By how many inches of fast-moving water can a person be swept off their feet?

A person can be swept off their feet by as little as 6 inches of fast-moving water. This highlights the immense power that moving water can possess, even at a relatively shallow depth. The force exerted by moving water increases with the speed of the current, making it dangerous for individuals who may underestimate the conditions.

In practical terms, water flowing at a swift pace can exert enough pressure to disrupt a person's balance and footing, making it easy to be swept away. This serves as a critical reminder for individuals to take caution in flood conditions, rapidly flowing streams, or any environment where water movement is significant, regardless of the water's depth. Understanding this concept is essential for safety and awareness around bodies of water.