Antelope Valley Dam No. 3 Reservoir Report
Last Updated: December 28, 2025
Antelope Valley Dam No.
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Summary
3, also known as Lower Dam, is a vital water resource structure located in Springer, New Mexico. This earth dam was completed in 1920 with the primary purpose of irrigation, serving the local community with a storage capacity of 1,280 acre-feet. The dam stands at a height of 24 feet and stretches 3,700 feet in length, regulating the flow of the Cimarron River.
Despite its age, Antelope Valley Dam No. 3 has undergone significant modifications in the year 2000 to enhance its hydraulic, structural, and overall functionality. The dam is regulated by the Office of the State Engineer and is subject to regular inspections to ensure its integrity. The hazard potential of the dam is classified as low, with a moderate risk rating.
While the condition assessment in 2015 deemed the dam as unsatisfactory, ongoing risk management measures are in place to address any potential issues. Antelope Valley Dam No. 3 remains a crucial component of the water infrastructure in Colfax County, playing a pivotal role in water supply and irrigation for the region. For enthusiasts interested in water resources and climate, this dam serves as a fascinating example of the intersection between human ingenuity and environmental stewardship.
Years Modified |
2000 - Hydraulic, 2000 - Other, 2000 - Structural |
Year Completed |
1920 |
Dam Length |
3700 |
Dam Height |
24 |
River Or Stream |
CIMARRON RIVER - OS |
Primary Dam Type |
Earth |
Surface Area |
90 |
Nid Storage |
1280 |
Structural Height |
31 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
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.
Antelope Valley Dam No. 3