Oregon Revised Statutes Aviation § 836.215

Private property, or any interest therein of whatever kind, and an easement for the operation of aircraft and all operations incidental thereto, to and from the property for the purposes specified in ORS 836.200, may be acquired by any municipality, by gift, grant, purchase, lease or contract, if the municipality is able to agree with the property owners on the terms of acquisition. If the municipality and the property owners are unable to agree upon terms, private property may be acquired by condemnation in the manner provided in ORS chapter 35. As an alternative, the municipality, if a port, may condemn the private property, or any interest therein, for the operation of aircraft and all operations incidental thereto, in the same manner and procedure as is provided by statute for condemnation of property by corporations organized for construction and operation of railroads.