Roberts Tank Dam Reservoir Report
Last Updated: March 14, 2026
Located in El Paso, Texas, the Roberts Tank Dam was completed in 1938 by the Civilian Conservation Corps (CCC).
Summary
This private dam serves primarily for flood risk reduction along the San Felipe Arroyo, with a modest height of 20 feet and a length of 1530 feet. Despite its age, the dam is still in operation, with the Texas Commission on Environmental Quality (TCEQ) overseeing its regulatory and inspection processes.
With a storage capacity of 560 acre-feet, the Roberts Tank Dam plays a vital role in managing water resources in the region. While it lacks a spillway, the dam has a single outlet gate for controlled water release. The dam's condition remains unrated, but its hazard potential is deemed not available, indicating a relatively low risk level. However, the risk assessment suggests a high risk (2) due to potential consequences in case of failure, highlighting the importance of ongoing monitoring and maintenance.
The Roberts Tank Dam stands as a testament to early 20th-century engineering and continues to contribute to water resource management in El Paso. As climate change impacts become more pronounced, the role of such infrastructure in flood control and water storage will only grow in significance, underscoring the importance of maintaining and upgrading these structures to meet evolving challenges.
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15-Day Weather Outlook
Year Completed |
1938 |
Dam Length |
1530 |
Dam Height |
20 |
River Or Stream |
SAN FELIPE ARROYO |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
2.34 |
Nid Storage |
560 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
5-Day Hourly Forecast Detail
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.
Roberts Tank Dam