In order to control erosion on a construction site, you must first understand the erosion process. Rainfall and the surface runoff of rainfall produces four main types of erosion on a construction site: Splash Erosion occurs when the raindrop impacts the bare soil surface and dislodges soil particles. Sheet Erosion occurs either after the surface of the soil is saturated or the rainfall exceeds the infiltration rate of the soil. Then the soil detached by splash erosion and the additional soil particles detached by runoff/overland flow move downslope. (Note: Splash and Sheet are sometimes referred to as Interrill Erosion ) Rill Erosion occurs when the sheet flow concentrates and causes small rills (about 1 inch deep) further eroding the soil surface. Gully Erosion occurs when runoff water in a rill detaches more soil and deepens and/or widens the channel to a significant size. (Note: There is no universally recognized dep...
Feral swine are one of the top nuisance animals disrupting our state, and if left unchecked, their wake of destruction will completely disrupt the Alabama we all know and love. We’re not talking lovable Porky Pig here either. You may know them as feral swine, feral hogs, wild pigs, wild hogs, or wild boars. They have many names, but we’re all referring to the same species – an angry, diseased, dangerous, and destructive one at that. Feral swine are destroying Alabama’s ecosystem at unsustainable rates. And that’s not all, folks! Unwelcome Guests Feral hogs are not an animal species native to Alabama . As such, they are incredibly invasive and destructive to the state’s natural ecosystem. They have no natural predators, they maintain rapid reproduction rates, and they have a naturally low mortality rate. All of these factors contribute to their unhindered, ever-increasing population, and the only hope to control them is entirely dependent upon man-made efforts. P...
A reminder that when the soil is covered, erosion is prevented. GREEN IS GOOD. Keep vegetation if it doesn’t have to be cleared and create vegetative cover at every opportunity on a construction site. ______________________________________ Have you registered for Clear Water Alabama? https://alabamasoilandwater.gov/alesc-clearwater/ Perry L Oakes, PE Program Coordinator AL Erosion and Sediment Control Program
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