(1) The department, whenever it is considered necessary or advantageous and practicable, is empowered to provide for the acquisition by purchase of, and to acquire by purchase (a) any bridge or bridges or ferries which connect with or may be connected with the public highways of this state (b) together with approaches thereto.

(2) In connection with the acquisition by purchase of any bridge or bridges or ferries under subsection (1) of this section, the department, the state treasurer, any city, county, or other political subdivision of this state, and all of their officers:

(a) Are empowered and required to do all acts and things provided for in this chapter to establish and construct toll bridges and operate, finance, and maintain such bridges insofar as the powers and requirements are applicable to the purchase of any bridge or bridges or ferries and their operation, financing, and maintenance; and

(b) In purchasing, operating, financing, and maintaining any bridge or bridges or ferries acquired or to be acquired by purchase under this section, shall act in the same manner and under the same procedures as are provided in this chapter to establish, construct, operate, finance, and maintain toll bridges insofar as such manner and procedure are applicable to the purchase of any bridge or bridges or ferries and their operation, financing, and maintenance.

(3) Without limiting the generality of the provisions contained in subsections (1) and (2) of this section, the department is empowered: (a) To cause surveys to be made for the purpose of investigating the propriety of acquiring by purchase any such bridge or bridges or ferries and the right-of-way necessary or proper for that bridge or bridges or ferries, and other facilities necessary to carry out the provisions of this chapter; (b) to issue, sell, and redeem bonds, and to deposit and pay out the proceeds of the bonds for the financing thereof; (c) to collect, deposit, and expend tolls therefrom; (d) to secure and remit financial and other assistance in the purchase thereof; and (e) to carry insurance thereon.

(4) The provisions of RCW 47.56.220 apply when any bridge or bridges or ferries are acquired by purchase pursuant to this section.