Water Code § 7036
CHAPTER 3. Bridges and Conduits on or Near Highways
Any public district or private utility and any county may enter into a contract agreeing to pay and apportion between them the costs of locating, removing, repairing, or relocating any facilities owned or to be owned by either party on the roads or other property of the other in such proportion and upon such terms as the governing boards of the parties shall determine to be equitable.
This section shall not supersede the provisions of this chapter.