Dams in Greenlee County, Arizona
7Total Dams
1High Hazard
1Significant
Dam Safety in Greenlee County, Arizona
Greenlee County has 7 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Greenlee County is 68 years old. The most common purpose is flood risk reduction. The tallest dam is Lower Chase Creek at 94 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 |
|---|---|---|---|---|---|
| Lower Chase Creek | High | Satisfactory | 94 | Other | 1987 |
| New Town #2 | Significant | Fair | 62 | Water Supply | 1945 |
| Round Mountain Detention Dam 2 | Low | Fair | 30 | Flood Risk Reduction | 1954 |
| Grayhorse Detention Dam | Low | Fair | 28 | Flood Risk Reduction | 1956 |
| State Line Detention Dam | Low | Poor | 27 | Debris Control | 1952 |
| Olney Draw Detention Dam | Low | Fair | 25 | Flood Risk Reduction | 1953 |
| Round Mountain Detention Dam 1 | Low | Fair | 22 | Flood Risk Reduction | 1954 |