Grayhorse Detention Dam
Low HazardFair ConditionEmergency Action Plan: Not Required
Location
| State | Arizona |
| County | Greenlee |
| Nearest City | DUNCAN, AZ |
| River/Stream | ROUND MOUNTAIN DRAW TRIBUTARY |
| Coordinates | 32.54085, -109.07489 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 28 ft |
| Dam Length | 603 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 20 acres |
| Max Discharge | 890 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/12/2015 |
| Emergency Action Plan | Not Required |