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Sitework & Earthworkaka: sediment fenceaka: filter fence

Silt Fence

In Plain English

A temporary fabric fence installed on slopes to slow runoff and trap soil particles before they leave the construction site.

Definition

A temporary sediment control barrier consisting of a woven geotextile fabric stapled to wooden posts installed across drainage flow paths on construction sites. Silt fences slow runoff and cause sediment to settle out before water passes through the permeable fabric. They must be installed on contour (across the slope), maintained regularly, and removed when the site is stabilized.

Example

Silt fence was installed along the entire downhill perimeter of the site before grading began, as required by the approved SWPPP.

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