ORS § 222.690
On the date the surrender and merger become effective under ORS 222.680, without any further or formal action, all rights and property, both real and personal, then vested in or belonging to the city which voted to surrender its charter, including all parks, public grounds, buildings and improvements and all rights or property in public streets or highways and also including all other rights and property vested in or belonging to the city of any nature whatever whether of the same or similar general nature as those expressly mentioned or differing therefrom in kind, nature, degree or otherwise, shall thereupon be rights and property of the city into which it is merged. However, all county roads lying within the limits of the merged city which have not been laid out or accepted as streets, shall remain county roads until they are laid out or accepted as streets. All debts and liabilities and obligations of the city surrendering its charter shall thereupon be liabilities of the city into which it is merged and the last named city shall thereupon assume all liabilities of the city surrendering its charter. All valid claims against the city surrendering its charter shall thereafter be valid claims against the city into which it is merged. The inhabitants of the city surrendering its charter shall become subject in all respects to the jurisdiction of the authorities of the city into which it is merged. The jurisdiction of any public authority exercised theretofore in the city surrendering its charter, so far as it is in conflict with the corporate authority of the city in which it is merged, shall cease and the city surrendering its charter shall lose its corporate identity entirely.
ORS 222.690