Dams in Pinal County, Arizona
15Total Dams
9High Hazard
3Significant
Dam Safety in Pinal County, Arizona
Pinal County has 15 dams tracked in the National Inventory of Dams. Of these, 9 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification.
The average dam in Pinal County is 52 years old. The most common purpose is flood risk reduction. The tallest dam is D Tailings at 150 ft.
Explore more: Oldest dams in Arizona · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Ab-bc | High | Not Available | 150 | Tailings | |
| Whitlow Ranch Dam - Saddle Dike 1 | High | Not Available | 149 | Flood Risk Reduction | 1959 |
| Powerline | High | Fair | 42 | Flood Risk Reduction | 1967 |
| Apache Junction Frs | High | Satisfactory | 38 | Flood Risk Reduction | 1988 |
| Rittenhouse | High | Satisfactory | 35 | Flood Risk Reduction | 1969 |
| Kearny Lake | High | Satisfactory | 28 | Fish and Wildlife Pond | 2000 |
| Vineyard Road | High | Satisfactory | 28 | Flood Risk Reduction | 1967 |
| Magma Retarding | High | Satisfactory | 23 | Flood Risk Reduction | 1964 |
| Florence Retarding | High | Satisfactory | 21 | Flood Risk Reduction | 1965 |
| D Tailings | Significant | Not Available | 150 | Tailings | |
| Inlet Control Structure | Significant | Satisfactory | 116 | Flood Risk Reduction | 2008 |
| Main Pls | Significant | Satisfactory | 106 | Other | 2008 |
| Picacho Dam | Low | Not Available | 33 | 1889 | |
| White Road Basin | Low | Not Rated | 8 | Flood Risk Reduction | 1995 |
| Tat Momolikot - Cemetery Dike | Undetermined | Not Rated | 9 | Flood Risk Reduction | 1974 |