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.
the fastest crocodile is the enormous saltwater crocodile at 25mph on land and 30 when swiming. saltwater crocodile at 25mph on land and 30mph in water.  Actually the fastest is the Johnston's Crocodile (Crocodylus johnstonii) It can gallop at speeds of up to 20 mph over short bursts.