Oian Dahl Detention
Oian Dahl Detention is an earth dam located in Fillmore County, Minnesota, built in 1992. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Oian Dahl Detention
The primary purpose of Oian Dahl Detention is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Oian And Dahl (private). It impounds the Root River S Branch-tr near Choice.
The dam stands 26 feet tall and stretches 280 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 37 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1992, the structure is 34 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 06/06/2017.
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Location
| State | Minnesota |
| County | Fillmore |
| Nearest City | Choice |
| River/Stream | Root River S Branch-tr |
| Coordinates | 43.71080, -91.79015 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 280 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 20 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Oian and Dahl |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/06/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01019 |
| Federal ID | MN01019 |
| More Info | State Dam Safety Program |