Cheyenne requires erosion and sediment control on graded sites because High Plains winds and summer thunderstorms move loose soil rapidly. Silt fencing, mulching, and stabilized exits are standard for active construction.
Cheyenne's wind-driven and storm-driven erosion conditions make sediment control especially important. Site plans submitted under the Unified Development Code must show erosion controls including perimeter silt fence, soil stabilization within a defined timeframe after grading stops, inlet protection on adjacent storm drains, and a stabilized rocked construction entrance. Wind erosion controls such as tackifier sprays or temporary cover crops may be required on larger sites, particularly during the dry late-winter and spring season when chinook winds frequently exceed gale force across Laramie County.
Failed silt fence, off-site sediment tracking onto streets, or unstabilized stockpiles can lead to corrective notices, daily fines, and city-imposed cleanup costs billed to the project owner.
Cheyenne, WY
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See how Cheyenne's erosion control rules stack up against other locations.
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