(1) Bonds issued under the provisions of this chapter shall be negotiable, serial bonds, in such series, maturities and denominations as the board shall determine, payable in legal currency of the United States, at such place as the board shall provide, from funds derived from the levy and collection of special assessments against the benefited lands within the operation of the general improvement or divisional district and shall draw interest at a rate or rates as the board shall authorize. Such bonds may be in any form, including bearer bonds or registered bonds as provided in RCW
39.46.030.