Shepherd Dam is an earth dam located in Sioux County, Nebraska, built in 1931. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 360 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 Shepherd Dam
The primary purpose of Shepherd Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Edward & Robbin Oldaker (private). It impounds the South Squaw Creek near Ardmore Sd.
The dam stands 17 feet tall and stretches 360 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1931, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/04/2022.
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Location
| State | Nebraska |
| County | Sioux |
| Nearest City | Ardmore Sd |
| River/Stream | South Squaw Creek |
| Coordinates | 42.86652, -103.99407 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 360 ft |
| Year Completed | 1931 (95 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 850 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Edward & Robbin Oldaker |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/04/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01089 |
| Federal ID | NE01089 |
| More Info | State Dam Safety Program |