Dams in Cass County, Minnesota
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 Available | 13 | Recreation | 1885 |
| Winnibigoshish Dam - Dike 1 | Significant | Not Available | 5 | Water Supply | 1884 |
| Six Mile Creek | Low | Satisfactory | 20 | Other | 1975 |
| Thunder Lake | Low | 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 Available | 15 | Recreation | 1912 |
| Norway Lake | Low | Satisfactory | 13 | Recreation | 1909 |
| Highland Creek | Low | 11 | Other | 1970 | |
| Lake Hattie | Low | 10 | Recreation | 1937 | |
| Bear Brook | Low | 10 | Fish and Wildlife Pond | 1970 | |
| Cuba | Low | Not Rated | 10 | Fish and Wildlife Pond | 1970 |
| Lucille Lake | Low | Not Rated | 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 Rated | 8 | Fish and Wildlife Pond | 1970 |
| Sugar Lake | Low | 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 | 7 | Other | 1969 | |
| Pine Mountain Lake | Low | 7 | Recreation | 1936 | |
| Washburn Lake | Low | Fair | 7 | Recreation | 1936 |