Oregon Revised Statutes Education and Culture § 358.375

(1) In the case of a city museum, and when authorized by the electors of the city voting at a primary election or general election, the governing body may issue general obligation or revenue bonds of the city for the purpose of providing all or part of the funds necessary to acquire a museum site or sites and to construct the museum.

(2) In the case of a joint city museum, and when authorized by the electors of the two or more cities voting at a primary election or general election, each city council of the two or more respective cities may issue general obligation bonds or revenue bonds of each of the two or more respective cities for the purpose of providing such portion of the funds necessary to acquire a museum site or sites and to construct the museum as is determined by the governing body.