Nothing in *RCW 47.60.150
forbids the establishment by the department of a Washington state ferries revolving fund of not to exceed six hundred thousand dollars from the proceeds of any bonds sold under the provisions of this chapter. The fund may be deposited by the department in such banks or financial institutions as it may select throughout the state. RCW 43.01.050
does not apply to the fund or any deposits therein made by the department under this section. The department may deposit all moneys received under this chapter in the fund. All expenses whatsoever arising in the operations of the Puget Sound ferry system shall be paid from the fund, if established, by check or voucher in such manner as may be prescribed by the department.
All moneys received by the department or any employee under the foregoing sections of this chapter, except an amount of petty cash for each day's needs as fixed by the regulation of the department, shall each day and as often during the day as advisable, be deposited in the nearest authorized depositary selected by the department under this section.
Whenever the fund exceeds six hundred thousand dollars, the department shall forthwith transmit the excess to the state treasurer for deposit in the trust fund established by *RCW 47.60.150