Summary
Managed by the Bureau of Indian Affairs, this earth dam was completed in 1941 and serves the primary purpose of irrigation. With a structural height of 113 feet and a length of 2508 feet, the reservoir has a normal storage capacity of 23,000 acre-feet.
The dam's spillway type is controlled, and it has a high hazard potential, with a risk assessment rating of very high. Despite not being state-regulated, Willow Creek has undergone regular inspections, with the last one conducted in July 2012. The emergency action plan was last revised in August 2012, ensuring that necessary measures are in place to mitigate risks associated with the reservoir.
Located in a picturesque setting along Willow Creek, this irrigation structure plays a crucial role in supporting agriculture in the region. Enthusiasts interested in water resources and climate will appreciate the engineering marvel of Willow Creek and the efforts taken by the Bureau of Indian Affairs to ensure its safe operation and maintenance.
Year Completed |
1941 |
Dam Length |
2508 |
River Or Stream |
WILLOW CREEK |
Primary Dam Type |
Earth |
Nid Storage |
23000 |
Structural Height |
113 |
Hazard Potential |
High |
Nid Height |
113 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Willow Creek