Little Pine Lake
Little Pine Lake is a gravity dam located in Aitkin County, Minnesota, built in 1937. It carries a Low hazard potential classification and has a poor condition assessment.
About Little Pine Lake
The primary purpose of Little Pine Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr-ewr (state). It impounds the Ripple River near Aitkin.
The dam stands 10 feet tall and stretches 37 feet across, creates a reservoir covering 225 acres, has a maximum storage capacity of 6,145 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.
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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 10/04/2023.
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Location
| State | Minnesota |
| County | Aitkin |
| Nearest City | Aitkin |
| River/Stream | Ripple River |
| Coordinates | 46.44188, -93.73859 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 4 ft |
| Dam Length | 37 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 6,145 acre-ft |
| Max Storage | 6,145 acre-ft |
| Normal Storage | 5,390 acre-ft |
| Surface Area | 225 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 360 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR-EWR |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 10/04/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00242 |
| Federal ID | MN00242 |
| More Info | State Dam Safety Program |