Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.010

(1) “Actual original cost” includes the sum paid to the state at the time the application was made for a preliminary permit; the sum paid or secured to be paid to the state by the applicant for license at the time such application was made; such sums as may be paid to the United States or any department thereof; and such sums as shall have been reasonably and prudently expended in preliminary investigations, explorations and organization expenses, as determined by the Water Resources Commission.

(2) “Project” means a complete unit, improvement or development. It includes, among other things, power houses, water wheels, conduits or pipes, dams and appurtenant works and structures, storage, diverting or forebay reservoirs connected therewith, and primary lines transmitting power to the point of junction with a distributing system, or with any interconnected primary system, miscellaneous works and structures used in connection with the unit or any part thereof, rights of way, lands, flowage rights and all other properties, rights and structures necessary or appropriate in the use, operation and maintenance of any such unit.