Plains Zoning presents draft public-works manual; commissioners debate landscaping limits and sprinkler setbacks

Plains Zoning and public-works staff on July 21 presented a draft public-works manual intended to give developers clearer specifications for building and repairing roads than existing, more-vague county code.

Milton Overton of Plains Zoning told the board the manual draws on other county standards, including Bonneville and Bingham counties, to provide technical guidance on trenching, testing and other road-construction details. Public-works staff said the manual is meant to clarify standards and prevent recurring drainage and shoulder problems.

A central policy point was whether any section should allow landscaping in the county right-of-way. Staff initially recommended prohibiting landscaping because of recurring maintenance problems and safety concerns; several commissioners said they would allow limited treatments such as grass or small rock. Commissioners and staff discussed specifics: limiting rock size (suggested maximum about 3.5 inches), maintaining a setback from the pavement edge (commissioners discussed 2–8 feet buffers in different exchanges) and moving sprinkler heads at least 3 feet away from the edge of the road to reduce water saturation that softens shoulders.

Staff and commissioners noted practical enforcement issues: sprinkler leaks and irrigation can erode shoulders and cause soft spots that damage roads and create maintenance burdens. They discussed examples where shoulder grading removed existing drainage and caused problems for newly paved surfaces.

Next steps: staff will incorporate commissioner feedback — including permitted limited vegetation/rock, recommended setback distances and clearer trenching/testing language — and circulate a revised draft for further review.