Ben Norman Dam
Ben Norman Dam is an earth dam located in Sioux County, Nebraska, built in 1943. It carries a Low hazard potential classification and has a fair condition assessment.
About Ben Norman Dam
The primary purpose of Ben Norman Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Leonard & Linda Forbes (private). It impounds the Tr-big Cottonwood Creek near Interior Sd.
The dam stands 26 feet tall and stretches 740 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 374 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1943, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/26/2019.
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Location
| State | Nebraska |
| County | Sioux |
| Nearest City | Interior Sd |
| River/Stream | Tr-big Cottonwood Creek |
| Coordinates | 42.87222, -103.52899 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 22 ft |
| Dam Length | 740 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 374 acre-ft |
| Max Storage | 374 acre-ft |
| Normal Storage | 168 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,430 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Leonard & Linda Forbes |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/26/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01096 |
| Federal ID | NE01096 |
| More Info | State Dam Safety Program |