Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.160

(1) No person shall construct or maintain, and no officer or agency of the state shall issue any permit for the construction or maintenance of any hydroelectric facility or structure on the North Santiam River between river mile 27 and Big Cliff Dam.

(2) Nothing in subsection (1) of this section applies to any hydroelectric facility or structure constructed on the North Santiam River prior to October 15, 1983, to the historic uses of such a hydroelectric facility or structure or to the repair or reconstruction of such a hydroelectric facility or structure at the present site.