Dona Ana Site 2 Reservoir Report
Nearby: Dona Ana Site 1 Picacho North Dam
Last Updated: December 23, 2025
Dona Ana Site 2, also known as North Dona Ana Dam, is a crucial water management infrastructure located in Doña Ana, New Mexico.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1956 by the USDA NRCS, this earth dam stands at a height of 31 feet and serves primarily for flood risk reduction along the North Dona Ana Arroyo. The dam has a storage capacity of 233 acre-feet and covers a drainage area of 2.2 square miles. Despite being uncontrolled, the dam has a spillway width of 300 feet to manage high discharge rates effectively.
Managed by the Office of the State Engineer, Dona Ana Site 2 is regulated, inspected, and enforced by state agencies to ensure its structural integrity and functionality. With a hazard potential rated as high and a fair condition assessment, the dam undergoes inspections every three years to assess its safety and operational readiness. Although the risk assessment is moderate, management measures to mitigate potential risks are not specified in the available data. Overall, Dona Ana Site 2 plays a vital role in protecting the surrounding area from flooding and debris control, showcasing the importance of effective water resource management in New Mexico.
Year Completed |
1956 |
Dam Length |
1963 |
Dam Height |
31 |
River Or Stream |
NORTH DONA ANA ARROYO |
Primary Dam Type |
Earth |
Hydraulic Height |
31 |
Drainage Area |
2.2 |
Nid Storage |
233 |
Structural Height |
36.5 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
37 |
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.
Dona Ana Site 2