Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.48307

Sec. 48307. Except as authorized by law, a person shall not obstruct the channel or course of any river, stream, or creek in this state by placing or causing to be placed in that river, stream, or creek any net, wire, screen, or any other apparatus or material of any kind that will prevent the free passage of fish up and down the river, stream, or creek. A person who violates this section is guilty of a violation of this part. The department may in the public interest authorize the placing of screens in any river, stream, creek, or in the inlet or outlet of any lake.