Idaho Code § 40-2304: Construction of sidewalks.

Any owner or occupant of land may construct a sidewalk on the highway along the line of his land subject to authority conferred by law on the respective highway or county commissioners and the director of highways. Any person using the sidewalk with a horse or team without permission of the owner, is liable to the owner or occupant in the sum of twenty-five dollars ($25.00) for each trespass, and for all damages suffered.