Summary
Managed by the Bureau of Indian Affairs, this reservoir was completed in 1937 and primarily serves the purpose of irrigation. With a structural height of 40 feet and a length of 1675 feet, Round Rock has a storage capacity of 833 acre-feet, making it a crucial water source in the region.
Situated along the Lukachukai Wash, Round Rock not only supports irrigation but also serves purposes such as fire protection, stock watering, and recreation. Despite being a Federal-owned structure, Round Rock is not regulated by the state and does not require state permitting or inspection. However, the high hazard potential of the dam necessitates regular inspections, with the last one conducted in April 2012.
With a very high risk assessment rating, Round Rock poses potential risks that require proper risk management measures. Emergency action plans and guidelines are crucial to ensure the safety and security of the surrounding area in case of any dam-related emergencies. As a vital water resource in the region, Round Rock plays a significant role in water management and climate resilience efforts in Apache County, Arizona.
Year Completed |
1937 |
Dam Length |
1675 |
River Or Stream |
LUKACHUKAI WASH -OS |
Primary Dam Type |
Earth |
Nid Storage |
833 |
Structural Height |
40 |
Hazard Potential |
High |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chinle Creek Near Mexican Water
|
2cfs |
San Juan River At Four Corners
|
603cfs |
San Juan River At Shiprock
|
639cfs |
San Juan River Near Bluff
|
651cfs |
Mancos River Near Towaoc
|
8cfs |
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.
Round Rock