California Code, Streets and Highways Code - SHC § 101.3

The department shall submit all plans and specifications for any bridge or other structure across any river or other drainage channel or basin subject to the jurisdiction of the Reclamation Board for approval in accordance with the provisions of the Reclamation Board Act, and shall not construct any such bridge or structure without the approval of the said board.  Whenever a bridge or other structure has been constructed according to plans and specifications which have been approved by the Reclamation Board, no change in or replacement or relocation of such bridge or structure shall be required by said board from funds appropriated for highway purposes without the consent of the department.