Roiger Detention is an earth dam located in Brown County, Minnesota, built in 1986. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 750 ft long, taller than 74% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Roiger Detention
The primary purpose of Roiger 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 Roiger, Lenis (private). It impounds the Mound Creek-tr near Springfield.
The dam stands 32 feet tall and stretches 750 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1986, the structure is 40 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. The most recent inspection on record was 08/01/2024.
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Location
| State | Minnesota |
| County | Brown |
| Nearest City | Springfield |
| River/Stream | Mound Creek-tr |
| Coordinates | 44.17515, -95.02817 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 28 ft |
| Dam Length | 750 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 141 acre-ft |
| Max Storage | 141 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Roiger, Lenis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/01/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00930 |
| Federal ID | MN00930 |
| More Info | State Dam Safety Program |