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.
But just to give an example of the caliber of that speed, think about this. Throwing a football at nearly 50 miles an hour due it shape is equivelent to throwing a 100 mile an hour fast ball in baseball. This is not 100% accurate most decent qbs can throw over 50 mph from a distance about 50 ft away. I'm no where near good and threw 50 at fanfare yesterday before the unc lsu game not even warmed up. I have seen farve throw close to 65 mph on a 10 yrd comeback which is about a 20 yrd thorw.