Summary
Built in 1936 by the Bureau of Reclamation, this Earth dam stands at 42 feet high and stretches 1050 feet in length, primarily serving the purpose of irrigation. With a storage capacity of 570 acre-feet and a maximum discharge of 1500 cubic feet per second, Anita plays a crucial role in managing water resources in the region.
Despite being classified as having a low hazard potential, Anita is subject to moderate risk, with a risk assessment rating of 3. However, the dam's condition assessment remains unavailable, highlighting the need for further evaluation and maintenance. The last inspection conducted in September 2007 revealed that the dam meets safety guidelines but requires regular monitoring to ensure its integrity and functionality. As a key component of the Bureau of Reclamation's operations, Anita serves as a vital infrastructure for water management and irrigation in the area.
Water resource and climate enthusiasts will find Anita to be a fascinating case study of dam infrastructure in Montana. Its location along the iconic Yellowstone River TR, combined with its historical significance and functional purpose for irrigation, make it a noteworthy site for understanding the intersection of water management, infrastructure development, and environmental stewardship. As discussions around water resource sustainability and climate resilience continue to evolve, Anita serves as a tangible example of the complex challenges and opportunities present in managing water resources in a changing climate.
Year Completed |
1936 |
Dam Length |
1050 |
Dam Height |
42 |
River Or Stream |
YELLOWSTONE RIVER TR |
Primary Dam Type |
Earth |
Surface Area |
40 |
Hydraulic Height |
30 |
Drainage Area |
4 |
Nid Storage |
570 |
Structural Height |
42 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
42 |
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.
Anita
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