Leasburg Diversion Reservoir Report
Last Updated: December 23, 2025
Leasburg Diversion, located on the Rio Grande River in Mesilla, New Mexico, serves as a vital irrigation structure completed in 1906 under the supervision of the Bureau of Reclamation.
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Summary
This concrete dam stands at a height of 10 feet with a hydraulic height of 7 feet, providing a storage capacity of 150 acre-feet for agricultural purposes. With a spillway width of 600 feet and a maximum discharge of 17,000 cubic feet per second, the dam's hazard potential is deemed low, with a moderate risk assessment rating.
Managed and regulated by the Bureau of Reclamation, Leasburg Diversion plays a crucial role in water resource management in the region. The dam's primary purpose of irrigation highlights its significance in supporting agricultural activities in the area. Despite its age, the structure remains in good condition, with regular inspections conducted every 6 years to ensure its continued functionality and safety. The presence of emergency action plans and risk management measures further underscores the commitment to maintaining the dam's integrity and safeguarding surrounding communities in the event of unforeseen emergencies.
As a key component of the water infrastructure on the Rio Grande, Leasburg Diversion stands as a testament to the enduring legacy of water resource management in the region. With its strategic location and operational efficiency, the dam continues to play a pivotal role in providing essential water supply for agricultural activities while mitigating risks associated with its operation. As water resource and climate enthusiasts, understanding the significance of structures like Leasburg Diversion is essential in appreciating the intricate balance between human needs and environmental stewardship in managing water resources effectively.
Year Completed |
1906 |
Dam Length |
2865 |
Dam Height |
10 |
River Or Stream |
RIO GRANDE RIVER |
Primary Dam Type |
Concrete |
Hydraulic Height |
7 |
Nid Storage |
150 |
Structural Height |
10 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
10 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Leasburg Dam State Park
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Indian Springs Hill
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Scenic Valley
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Leasburg Diversion