Lake Okabena
Lake Okabena is a gravity dam located in Nobles County, Minnesota, built in 1941. It carries a Low hazard potential classification and has a fair condition assessment.
About Lake Okabena
The primary purpose of Lake Okabena is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Worthington (local government). It impounds the Ocheydan River-tr near Worthington.
The dam stands 12 feet tall and stretches 50 feet across, creates a reservoir covering 785 acres, has a maximum storage capacity of 10,814 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1941, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/14/2018.
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Location
| State | Minnesota |
| County | Nobles |
| Nearest City | Worthington |
| River/Stream | Ocheydan River-tr |
| Coordinates | 43.61613, -95.59973 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 12 ft |
| Dam Height | 10 ft |
| Dam Length | 50 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 10,814 acre-ft |
| Max Storage | 10,814 acre-ft |
| Normal Storage | 8,368 acre-ft |
| Surface Area | 785 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 1,800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Worthington |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/14/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00103 |
| Federal ID | MN00103 |
| More Info | State Dam Safety Program |