Oregon Revised Statutes Highways, Roads, Bridges and Ferries § 381.235

(1) Shall be made to mature at such times and bear such annual rate of interest, payable semiannually, as the authority issuing them may determine.

(2) May have coupons attached representing the interest payments.

(3) Shall contain a recital that the bonds and the interest thereon shall be limited in payment to the special fund to be derived from tolls or other income from the bridge.

(4) May contain such other terms and conditions and be in such form and signed by such official or officials as the authority issuing the bonds shall determine, but the coupons attached to the revenue bonds need bear only the facsimile signature of the officer designated to sign the coupons.