Sheetflow Erosion Control Erosion Control for the CESCL

April 21, 2020

Hot Mix Asphalt Berm

Photo: David Jenkins

The work area is the left. All runoff is diverted by silt fence and this hot mix asphalt berm to a sump, where it is pumped to a chitosan-enhanced sand filtration treatment system. This system prevented all turbid site water from entering the roadside ditch-outside of the silt fence-from draining to a creek. Note the mud on the left side of the berm and the clean asphalt on the right.

Since this is summer work and perimeter BMPs are containing all site runoff, we are not covering bare soil.

Upon completion and soil stabilization, the asphalt berm will be removed and hauled to an asphalt batch plant for recycle.

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