Sibley Lake is a gravity dam located in Crow Wing County, Minnesota, built in 1937. It carries a Undetermined hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 8 ft8 ft tall and 41 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Sibley Lake
The primary purpose of Sibley Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr (state). It impounds the Mayo Creek - Tr near Nisswa.
The dam stands 8 feet tall and stretches 41 feet across, creates a reservoir covering 418 acres, has a maximum storage capacity of 11,730 acre-feet, and collects water from a drainage area of 55 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.
Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/15/2015. That was over 11 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Crow Wing |
| Nearest City | Nisswa |
| River/Stream | Mayo Creek - Tr |
| Coordinates | 46.57489, -94.32468 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 6 ft |
| Dam Length | 41 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 11,730 acre-ft |
| Max Storage | 11,730 acre-ft |
| Normal Storage | 10,200 acre-ft |
| Surface Area | 418 acres |
| Drainage Area | 55 sq mi |
| Max Discharge | 1,225 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mndnr |
| Owner Type | State |
| Hazard Classification | Undetermined |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/15/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00045 |
| Federal ID | MN00045 |
| More Info | State Dam Safety Program |