It is declared to be the policy of the state to prohibit forever the building or maintaining of any dam or dams across the Brule River or any of its tributaries in Douglas County, except that a dam with an adequate fishway may be constructed across said Brule River at each of the 3 sites hereinafter described, or at such other sites as are selected by the department in place of any or all of the sites hereinafter mentioned, the purpose of which shall be to provide a method whereby fish declared to be undesirable for said stream by the department may be eliminated or prevented from ascending the stream, and to permit said stream to be developed for trout in different stretches thereof: site No. 1 known as Clevedon site in the southeast quarter of the northwest quarter of section 10, township 49 north, range 10 west; site No. 2 known as the Old Mill site in the northwest quarter of the southeast quarter, section 11, township 47 north, range 10 west; and site No. 3, known as the Upper or Rock dam site in the northeast quarter of the southeast quarter of section 22, township 47 north, range 10 west; and all rights, privileges, and franchises granted prior to June 26, 1905, to any person or corporation to improve said Brule River or any of its tributaries in said county for any purpose whatever, are repealed and annulled. No domestic corporation organized subsequent to such date shall exercise any of the powers or privileges authorized or conferred by ss. 180.15 to 180.18, 1925 stats., in, across or along said river or any of its tributaries in Douglas County.