Lower Jordan Dam
Lower Jordan Dam is an earth dam located in Sioux County, Nebraska, built in 1941. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lower Jordan Dam
The primary purpose of Lower Jordan Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Nebraska Board Of Educational Lands & Funds (state). It impounds the Tr-antelope Creek near Ardmore Sd.
The dam stands 14 feet tall and stretches 1,400 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 330 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1941, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/03/2023.
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Location
| State | Nebraska |
| County | Sioux |
| Nearest City | Ardmore Sd |
| River/Stream | Tr-antelope Creek |
| Coordinates | 42.92541, -103.80119 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 13 ft |
| Dam Length | 1,400 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 330 acre-ft |
| Max Storage | 330 acre-ft |
| Normal Storage | 138 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 3,760 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Nebraska Board of Educational Lands & Funds |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/03/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01095 |
| Federal ID | NE01095 |
| More Info | State Dam Safety Program |