The board of supervisors of any county may, upon approval of the Public Utilities Commission, grant authority to any person to construct a wharf, chute, or pier, on any lands bordering on any navigable bay, lake, inlet, creek, slough, or arm of the sea, situated in or bounding the county, with a license to take tolls for its use for the term of 20 years.
Ca. Harb. and Nav. Code § 4000