Section 31.307 - Dam on Milwaukee River(1) The department shall conduct, or shall cause to be conducted, an environmental and engineering study concerning the removal of the North Avenue dam in the city of Milwaukee from the Milwaukee River.(3) Upon completion of the study under sub. (1), the city of Milwaukee may apply for a permit to abandon the dam under s. 31.185 or the department may proceed under ss. 31.187 and 31.253 to cause the removal of the dam.(4) For purposes of s. 30.92(4) (b) 6, moneys expended from the appropriation under s. 20.370(5) (cq) for the study under sub. (1) shall be considered as amounts expended for projects considered necessary without regard to location.