Provides that the state does not assume ownership of or responsibility for a low head dam that is not listed as owned by the state on the department of natural resources' (department) low head dam roster (roster). Permits a person to remove without a permit certain low head dams that are located on a navigable waterway and that are encroachments. Requires the department to establish warning sign standards and requirements for low head dams that are on the roster. Allows for a bond of $1,000,000 to serve as proof of financial responsibility for a person that owns a low head dam. Provides that a permit issued by the director after January 1, 2021, for the removal of a low head dam does not expire until two years after certain judicial appeal processes are complete.