Holly 16 is an earth dam located in Murray County, Minnesota. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 210 ft long, taller than 50% 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 Holly 16
The primary purpose of Holly 16 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 Hansen, Donald G. (private). It impounds the Plum Creek-tr near Walnut Grove.
The dam stands 25 feet tall and stretches 210 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 18 acre-feet, and collects water from a drainage area of 0 square miles.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/02/2018.
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Location
| State | Minnesota |
| County | Murray |
| Nearest City | Walnut Grove |
| River/Stream | Plum Creek-tr |
| Coordinates | 44.16391, -95.52877 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 210 ft |
Storage & Hydraulics
| NID Storage | 18 acre-ft |
| Max Storage | 18 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Hansen, Donald G. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/02/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01782 |
| Federal ID | MN01782 |
| More Info | State Dam Safety Program |