ORS § 824.024
If any railway company owning or operating a railway within this state desires to construct any branch line or side line, or to build an extension of the main line, its board of directors shall adopt a resolution defining the branch, side line or extension, and designating the termini thereof, and shall cause a copy of such resolution, certified by its secretary, to be filed in the office of the Secretary of State, and in the office of each county clerk in or through whose county such branch or side line or extension is to be constructed. Thereupon such corporation has the right to build and construct such branch, side line or extension, and to exercise the right of eminent domain as provided by law, and the termini so designated in such resolution shall be a sufficient designation thereof for the purpose of exercising such right of eminent domain.
ORS 824.024