Hilda Norman Dam 3, located in Sioux County, Nebraska, is a privately owned irrigation dam designed by the USDA NRCS and completed in 1961.
Wind
Humidity
With a height of 14 feet and a length of 1992 feet, this earth dam serves the primary purpose of irrigation, providing a normal storage capacity of 170.2 acre-feet. The dam is situated on the TR-Big Cottonwood Creek, within the jurisdiction of the Nebraska Department of Natural Resources.
Despite its important role in water resource management, Hilda Norman Dam 3 is classified as having a significant hazard potential and a poor condition assessment. The last inspection in June 2019 revealed the need for improvement, prompting concerns about its safety and reliability. The dam lacks certain emergency preparedness measures, such as an Emergency Action Plan (EAP) and updated contact information, raising further questions about its risk management strategies.
With its location in a critical watershed area and its vital function for irrigation purposes, the maintenance and rehabilitation of Hilda Norman Dam 3 are essential for ensuring the safety of downstream communities and the efficient use of water resources. Collaboration between the private owner, regulatory agencies like the Nebraska Department of Natural Resources, and possibly federal agencies like the USDA NRCS will be crucial in addressing the dam's deficiencies and implementing necessary risk management measures.
Year Completed |
1961 |
Dam Length |
1992 |
Dam Height |
14 |
River Or Stream |
TR-BIG COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Surface Area |
51.2 |
Hydraulic Height |
13 |
Drainage Area |
1.9 |
Nid Storage |
441 |
Structural Height |
18 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
18 |
| Location | Reservations | Toilets |
|---|---|---|
Toadstool Geological Park and Campground
|
||
Toadstool
|
||
Soldier Creek
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