Layton, UT Environmental Rules: Erosion Control (2026)

120, in the Excavation and Grading chapter, requires that "the faces of cut and fill slopes shall be prepared and maintained to control against erosion," allowing effective planting to satisfy that duty, and states the protection must be installed as soon as practicable and before the contractor calls for final grading approval. Cut slopes made of erosion-resistant material can skip the planting requirement, but the section still requires check dams, cribbing, riprap, or other approved devices or methods wherever necessary to control erosion and provide safety.

This sits alongside the drainage design rules in the same chapter: building pads must carry a 2% drainage gradient toward approved facilities (reducible to 1% only if fill and cut slopes stay under 10 feet and no existing slope exceeds a 10% grade for more than 10 feet), and collection systems such as yard drains, swales, or ditches must convey surface drainage to the storm drain system under City Engineer approval. 130, with professional inspection also provided by the retained civil engineer and soils engineer, and final approval is withheld until all drainage facilities, protective devices, and erosion-control measures are complete per the approved grading plan.

The erosion control section has been in the code since the 1997 recodification (Ord. 97-35) and was enacted in its current excavation-and-grading form by Ordinance 03-31 in 2003.