Loon Lake
Loon Lake is an earth dam located in Cass County, Minnesota, built in 1969. It carries a Low hazard potential classification.
About Loon Lake
Loon Lake is a dam in Cass, Minnesota. The dam is owned by Usda Fs (federal). It impounds the Willow River-tr near Grand Rapids.
The dam stands 7 feet tall and stretches 180 feet across, has a maximum storage capacity of 530 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 03/01/1974. That was over 52 years ago.
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Location
| State | Minnesota |
| County | Cass |
| Nearest City | Grand Rapids |
| River/Stream | Willow River-tr |
| Coordinates | 47.09459, -93.86839 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 180 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 530 acre-ft |
| Max Storage | 530 acre-ft |
| Normal Storage | 370 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Last Inspection | 03/01/1974 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00650 |
| Federal ID | MN00650 |
| More Info | State Dam Safety Program |