25Total Dams
2High Hazard
2Significant
Dam Safety in Cass County, Minnesota
Cass County has 25 dams tracked in the National Inventory of Dams. Of these, 2 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Cass County is 76 years old. The most common purpose is fish and wildlife pond. The tallest dam is Sylvan at 35 ft.
Explore more: Oldest dams in Minnesota · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Sylvan | High | Fair | 35 | Hydroelectric | 1913 |
| Pillager | High | Fair | 22 | Hydroelectric | 1917 |
| Leech Dam | Significant | Not assessed | 13 | Recreation | 1885 |
| Winnibigoshish Dam - Dike 1 | Significant | Not assessed | 5 | Water Supply | 1884 |
| Six Mile Creek | Low | Satisfactory | 20 | Other | 1975 |
| Thunder Lake | Low | Not assessed | 18 | Recreation | 1934 |
| Kaylor F Pond | Low | Poor | 15 | Flood Risk Reduction | 1973 |
| Dry Sand Lake Wma | Low | Satisfactory | 15 | Fish and Wildlife Pond | 1964 |
| Gull Dam | Low | Not assessed | 15 | Recreation | 1912 |
| Norway Lake | Low | Satisfactory | 13 | Recreation | 1909 |
| Highland Creek | Low | Not assessed | 11 | Other | 1970 |
| Lake Hattie | Low | Not assessed | 10 | Recreation | 1937 |
| Bear Brook | Low | Not assessed | 10 | Fish and Wildlife Pond | 1970 |
| Cuba | Low | Not assessed | 10 | Fish and Wildlife Pond | 1970 |
| Lucille Lake | Low | Not assessed | 10 | Fish and Wildlife Pond | 1989 |
| Loon Lake 16 | Low | Poor | 10 | Fish and Wildlife Pond | 1978 |
| Daggett Brook | Low | Satisfactory | 9 | Fish and Wildlife Pond | 1970 |
| Willow River | Low | Satisfactory | 9 | Water Supply | 1962 |
| Grass Lake | Low | Not assessed | 8 | Fish and Wildlife Pond | 1970 |
| Sugar Lake | Low | Not assessed | 8 | Fish and Wildlife Pond | 1967 |
| South Fork Pine River | Low | Fair | 8 | Other | 1979 |
| Mud-goose Lake | Low | Satisfactory | 8 | Fish and Wildlife Pond | 1960 |
| Loon Lake | Low | Not assessed | 7 | Other | 1969 |
| Pine Mountain Lake | Low | Not assessed | 7 | Recreation | 1936 |
| Washburn Lake | Low | Fair | 7 | Recreation | 1936 |