Oregon Revised Statutes Utility Regulation § 772.030

(1) Any railroad company whose right of way passes through any canyon, pass or defile shall not prevent any other railroad company from the use and occupancy of said canyon, pass or defile for the purpose of its railroad in common with the railroad first located.

(2) Any railroad company authorized by law to condemn property for right of way or any other corporate purpose, may commence an action for condemnation of a right of way through any canyon, pass or defile for the purpose of its railroad, where right of way has already been located, condemned or occupied by some other railroad company through such canyon, pass or defile for the purpose of its railroad.

(3) Thereupon like proceedings shall be had as are provided by the laws of this state for the condemnation of land for right of way and other railroad purposes. At the time of rendering judgment for damages, the court or judge thereof shall enter a judgment authorizing the railroad to occupy and use the right of way, roadbed and track, if necessary, in common with the railroad company already occupying or owning the same, and defining the terms and conditions upon which the same shall be so occupied and used in common.