Idaho Code § 30-701

When a corporation is formed for the construction and maintenance of a bridge, ferry, flume or boom, or for two (2) or more of said purposes, it must not take tolls on or for the same until authority is granted therefor by the boards of county commissioners of the county or counties where its flume or abutments, landings or anchorages are situate. But after such authority is granted it may demand and receive such tolls as it is so authorized to take, and may, when necessary, secure the right of way for its flume, and the necessary chutes, raceways, landings, abutments and anchorages under the provisions of the Code of Civil Procedure.