Ogechie Lake is a gravity dam located in Mille Lacs County, Minnesota, built in 1952. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 80 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 Ogechie Lake
Ogechie Lake is a dam in Mille Lacs, Minnesota. The dam is owned by Mndnr-parks (state). It impounds the Rum River near Onamia.
The dam stands 10 feet tall and stretches 80 feet across, creates a reservoir covering 410 acres, has a maximum storage capacity of 2,550 acre-feet, and collects water from a drainage area of 419 square miles. Completed in 1952, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/28/2018.
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Location
| State | Minnesota |
| County | Mille Lacs |
| Nearest City | Onamia |
| River/Stream | Rum River |
| Coordinates | 46.12962, -93.78110 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 8 ft |
| Dam Length | 80 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 2,550 acre-ft |
| Max Storage | 2,550 acre-ft |
| Normal Storage | 1,275 acre-ft |
| Surface Area | 410 acres |
| Drainage Area | 419 sq mi |
Ownership & Safety
| Owner | Mndnr-parks |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/28/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00250 |
| Federal ID | MN00250 |
| More Info | State Dam Safety Program |