Steel Rebar. Reinforcing bar, or rebar, is a common steel bar that is hot rolled and is used widely in the construction industry, especially for concrete reinforcement.
These flows generally occur during periods of intense rainfall or rapid snow melt. They usually start on steep hillsides as shallow landslides that liquefy and accelerate to speeds that are typically about 10 miles per hour, but can exceed 35 miles per hour. The consistency of debris flows ranges from watery mud to thick, rocky mud that can carry large items such as boulders, trees, and cars.
Flash floods occur with little or no warning, move at very fast speeds and can reach a peak in a few minutes. They can roll. rocks, tear out trees, sweep away cars and trucks, and destroy buildings and bridges. Rapidly rising water can reach heights of. 30 feet or more.