(1) All state government agencies and local governments are hereby directed to pursue policies with regard to their respective activities, functions, powers, and duties which are designed to conserve and enhance the conditions of rivers which have been included in the system, in accordance with the management policies and the rules adopted by the commission for such rivers. Local agencies are directed to pursue such policies with respect to all lands in the river area owned or leased by such local agencies. Nothing in this chapter shall authorize the modification of a shoreline management plan adopted by a local government and approved by the state pursuant to chapter 90.58 RCW without the approval of the department of ecology and local government. The policies adopted pursuant to this chapter shall be integrated, as fully as possible, with those of the shoreline management act of 1971.
(2) Nothing in this chapter shall grant to the commission the power to restrict the use of private land without either the specific written consent of the owner thereof or the acquisition of rights in real property authorized by RCW 79A.55.030.
(3) Nothing in this chapter shall prohibit the department of natural resources from exercising its full responsibilities and obligations for the management of state trust lands.