Lower Lake Mary
High HazardNot Rated ConditionEmergency Action Plan: Yes
Location
| State | Arizona |
| County | Coconino |
| Nearest City | WALNUT CAN. NAT. MON. |
| River/Stream | WALNUT CANYON |
| Coordinates | 35.11145, -111.58110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 650 ft |
| Year Completed | 1907 (119 years old) |
Storage & Hydraulics
| NID Storage | 22,400 acre-ft |
| Max Storage | 22,400 acre-ft |
| Normal Storage | 11,029 acre-ft |
| Surface Area | 910 acres |
| Drainage Area | 27 sq mi |
| Max Discharge | 3,298 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 09/10/2020 |
| Emergency Action Plan | Yes |