2025 Session
Last amended: 1990 session
§ 103G.531 — Dam Permit Exceptions
Plain-Language Summary
Some dams are exempt from standard permitting if they meet certain size and safety criteria.
103G.531 DAM PERMIT EXCEPTIONS.
§
Subdivision 1.Exemption for structures constructed before July 1, 1937.
This chapter does not authorize the commissioner to require a permit for the original construction of dams, reservoirs, or control works in existence on and before July 1, 1937. §
Subd. 2.Minor dam exclusion.
The commissioner shall adopt rules that exclude minor dams such as those less than six feet in height or that impound less than 50 acre-feet of water storage at maximum storage elevations from permit requirements. The rules do not apply to a barrier six feet or less in height, regardless of storage capacity, or to a barrier creating a storage capacity at maximum water storage elevation of 15 acre-feet or less, regardless of height.
History:
History: History:
1990 c 391 art 7 s 49
Practical Notes
Small dams on private land may not need a full DNR permit but still must meet basic safety rules.