Bloomfield Dam No. 1 Reservoir Report
Last Updated: December 27, 2025
Bloomfield Dam No.
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Summary
1, also known as Blanco Storage Dam #1 or El Paso Natural Gas No. 1, is a crucial water supply infrastructure located in San Juan, New Mexico. Built in 1957, this earth dam stands at a height of 45 feet and has a hydraulic height of 44.2 feet, creating a reservoir with a storage capacity of 138.5 acre-feet. The dam's primary purpose is water supply, serving the local community and ensuring adequate water resources for various needs.
Managed by the local government and regulated by the Office of the State Engineer, Bloomfield Dam No. 1 is inspected regularly to ensure its structural integrity and safety. The dam has a high hazard potential but is currently assessed to be in satisfactory condition. In case of emergencies, the dam has an outlet gate system in place for controlled water release. Despite its moderate risk assessment, the dam plays a vital role in water resource management in the region and contributes to the overall climate resilience of the area.
With its location on the San Juan River, Bloomfield Dam No. 1 not only provides essential water storage but also helps in flood control and water management in the region. As a key piece of infrastructure designed by W. Carlos Powell & URS Corporation, this dam represents a significant investment in water resource infrastructure that continues to support the community's water needs while being mindful of climate challenges and environmental impacts.
Year Completed |
1957 |
Dam Length |
300 |
Dam Height |
45 |
River Or Stream |
SAN JUAN RIVER - OS |
Primary Dam Type |
Earth |
Surface Area |
6.98 |
Hydraulic Height |
44.2 |
Drainage Area |
0.17 |
Nid Storage |
138.5 |
Structural Height |
45 |
Outlet Gates |
Slide (sluice gate) - 0 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Animas River Below Aztec
|
310cfs |
San Juan River Near Archuleta
|
276cfs |
Animas River At Farmington
|
297cfs |
San Juan River At Farmington
|
622cfs |
La Plata River Near Farmington
|
5cfs |
La Plata River At La Plata
|
3cfs |
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.
Bloomfield Dam No. 1