Oregon Revised Statutes Animals § 608.310

(1) Every person, or the lessee or agent of the person, owning or operating any railroad, shall erect and maintain good and sufficient lawful fences on both sides of the railroad line, except at the crossings of and upon public roads and highways, within such portions of cities as are or may be laid out and platted in lots and blocks and at railroad station grounds. Such person shall also at the same time erect and maintain necessary farm crossings and gates and sufficient cattle guards at all public crossings.

(2) Railroad lines shall be so fenced and farm crossings, gates and cattle guards installed, within three months from the time such lines are put in operation. However, the Department of Transportation may prescribe by rule the number, location and character of farm crossings which may be necessary and the manner in which they shall be constructed so that they are reasonably adequate, safe, sufficient and convenient, but not so as to impair the terms of any contract between the landowner and the railroad or judgment in condemnation relative to such crossings.

(3) The Department of Transportation may, by rule, determine and prescribe any other description of fence than that designated as a lawful fence, which shall be constructed and maintained by any such railroad company between the points which are designated in such rule, and may provide for the apportionment of the costs of reconstruction necessitated thereby as between the parties interested.

(4) The Department of Transportation by rule may suspend the operation of this section as to any particular portion of any line of railroad.