ID S1086

Amends Idaho Code Section 42-1102 to expand the definition of irrigation right-of-way rights to include removal and control of vegetation within ditches, canals, and conduits, and explicitly prohibits encroachments (roads, utilities, fences, gates, pipelines, structures, landscaping, trees, vegetation) without written permission from the right-of-way owner.

Requires encroachments that unreasonably or materially interfere with right-of-way use and enjoyment to be removed at the expense of the person or entity causing the encroachment upon request of the right-of-way owner.

Amends Idaho Code Section 42-1204 to clarify that ditch, canal, and aqueduct owners have reasonable care duties only (not strict liability) and to incorporate the same encroachment prohibitions and removal requirements as Section 42-1102.

Amends Idaho Code Section 42-1209 to extend encroachment protections to irrigation districts, Carey Act operating companies, nonprofit irrigation entities, lateral ditch associations, and drainage districts.

Clarifies in all amended sections that the provisions do not impair the exercise of eminent domain rights for public purposes and apply to both existing and newly constructed irrigation infrastructure.