Summary
Constructed in 1974 by the Bureau of Indian Affairs, this Earth type dam serves primarily for irrigation purposes along the Santa Rosa Wash. With a structural height of 76 feet and a dam length of 12,500 feet, the reservoir has a storage capacity of 375,000 acre-feet, making it a crucial water resource in the region.
Despite its importance in supporting agricultural activities, Tat Momolikot poses a high hazard potential and is categorized as a very high-risk structure. Emergency protocols and risk management measures are in place, although the condition assessment is currently not available. The reservoir is under the jurisdiction of the Bureau of Indian Affairs, with regular inspections scheduled every 5 years to ensure the safety and stability of the dam.
Water resource and climate enthusiasts will find Tat Momolikot an intriguing case study of water management in arid regions. Situated in Pinal County, the reservoir plays a vital role in sustaining local agriculture and serves as a critical asset for the community. With ongoing concerns about its hazard potential and high-risk classification, there is a need for continued monitoring and assessment to safeguard this essential water source for future generations.
Year Completed |
1974 |
Dam Length |
12500 |
River Or Stream |
SANTA ROSA WASH |
Primary Dam Type |
Earth |
Nid Storage |
375000 |
Structural Height |
76 |
Hazard Potential |
High |
Nid Height |
76 |
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.
Tat Momolikot