24Total Dams
1High Hazard
0Significant
Dam Safety in Mercer County, North Dakota
Mercer County has 24 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life.
The average dam in Mercer County is 35 years old. The most common purpose is other. The tallest dam is Knife River Coal Pond 30 at 69 ft.
Explore more: Oldest dams in North Dakota · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Beulah Flood Control Dam | High | Satisfactory | 52 | Flood Risk Reduction | 1982 |
| Knife River Coal Pond 30 | Low | Not assessed | 69 | Other | 1988 |
| Glenharold Mine 144-84-19-5h | Low | Not assessed | 56 | Fish and Wildlife Pond | 1975 |
| Schaefer Dam; Norman M | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 2003 |
| Knife River Coal Pond 52 | Low | Not assessed | 38 | Other | 1990 |
| Knife River Coal Pond 03 | Low | Not assessed | 35 | Other | 1990 |
| Harmony Lake | Low | Not assessed | 32 | Recreation | 1998 |
| Knife River Coal Pond 11 | Low | Not assessed | 29 | Other | 1990 |
| Sediment Pond P-w32-02 | Low | Not assessed | 28 | Other | 2006 |
| Knife River Coal Pond 81 | Low | Not assessed | 25 | Other | 1986 |
| Consolidation Coal Co Pd 005 | Low | Not assessed | 25 | Fish and Wildlife Pond | 1984 |
| Sediment Pond P-d15-03 | Low | Not assessed | 24 | Other | |
| Glenharold Mine Coyote Way 4 | Low | Not assessed | 23 | Fish and Wildlife Pond | 1994 |
| Stephens Dam; Wilbur | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Sommer Dam; Gerald | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 2017 |
| Low | Not assessed | 20 | Other | ||
| Low | Not assessed | 20 | Other | ||
| Wolff Dam; Armon 4 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Low | Not assessed | 18 | Other | ||
| Kessler Dam; Kim | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 2001 |
| Indian Head Mine Pd P-m30-01 | Low | Not assessed | 13 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Sedimentation Pond P-w08-04 | Low | Not assessed | 10 | Other | 2021 |
| Nd State Land Dept 36-05 | Low | Not assessed | 9 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| Low | Not assessed | 8 | Other |