Sand Hill No. 2 is an earth dam located in Polk County, Minnesota, built in 1981. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 15 ft15 ft tall and 295 ft long. 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 Sand Hill No. 2
The primary purpose of Sand Hill No. 2 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 Wd of Sand Hill River (local government). It impounds the Sand Hill River-tr near Fertile.
The dam stands 15 feet tall and stretches 295 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1981, the structure is 45 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 10/19/2017.
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Location
| State | Minnesota |
| County | Polk |
| Nearest City | Fertile |
| River/Stream | Sand Hill River-tr |
| Coordinates | 47.53560, -96.15030 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 295 ft |
| Year Completed | 1981 (45 years old) |
Storage & Hydraulics
| NID Storage | 700 acre-ft |
| Max Storage | 700 acre-ft |
| Normal Storage | 2 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 600 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Wd of Sand Hill River |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/19/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00978 |
| Federal ID | MN00978 |
| More Info | State Dam Safety Program |