Semroska Dam
Semroska Dam is an earth dam located in Sioux County, Nebraska, built in 1951. It carries a Low hazard potential classification and has a poor condition assessment.
About Semroska Dam
The primary purpose of Semroska Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ray Semroska (private). It impounds the Tr-hat Creek near Ardmore Sd.
The dam stands 24 feet tall and stretches 690 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 98 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1951, the structure is well into its service life at over 50 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/29/2021.
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Location
| State | Nebraska |
| County | Sioux |
| Nearest City | Ardmore Sd |
| River/Stream | Tr-hat Creek |
| Coordinates | 42.95382, -103.72963 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 16 ft |
| Dam Length | 690 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 98 acre-ft |
| Max Storage | 98 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,150 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Ray Semroska |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/29/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01108 |
| Federal ID | NE01108 |
| More Info | State Dam Safety Program |