Bonneville County, ID Environmental Rules: Erosion Control (2026)

10, Permit from County Weed Department Required to Disturb Right-of-Way, requires any person or entity working in a county right-of-way to obtain a ground-disturbance permit before starting, and then to choose a remediation program tied to the scale of disturbance. 02 per linear foot of disturbed landscape and the County Weed Department handles weed control on the site, typical of bored or pulled utility conduit work. Between 15% and 30% disturbance, the permittee must reseed by incorporating approved grass seed into or over the disturbed ground, the usual case for open trenching.

Above 30% disturbance, the code requires four inches of topsoil (importing it if necessary) and reseeding by seed drilling, hydroseeding, or erosion control blankets over the disturbed area, the standard applied to complete excavation. Curb-and-gutter projects and similar special circumstances are exempt from the whole permitting process under division (A)(4). Seeding work performed under any tier must be done by dragging a harrow or similar tool over the soil, topdressing with a spreader, and dragging a chain over the seed, per division (C), so the code specifies method, not just outcome.

This sits in Chapter 91, the county's Nuisances chapter, in the Weeds subchapter, which is the county's operative mechanism for erosion and sediment control tied to ground-disturbing construction work within its rights-of-way.