Lee Valley
Key Takeaway
Lee Valley is classified as significant hazard in Arizona. It was completed in 1899 and is 127 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 30.6% in AZ) |
| Dam Length | 440 ft |
| Dam Type | Earth |
| Max Storage | 640 acre-ft |
| Normal Storage | 420 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 600 cfs |
| Year Completed | 1899 (127 years old) |
| NID ID | AZ00033 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ARIZONA GAME & FISH DEPARTMENT
State Government
Nearby Dams
White Mountain
Apache, AZ
Low Hazard 16 ftNorth Crescent Lake Dam
Apache, AZ
Significant Hazard 17 ftHog Wallow
Apache, AZ
Low Hazard 7 ftCrescent Lake
Apache, AZ
Low Hazard 22 ftSunrise
Apache, AZ
High HazardPool Corral
Apache, AZ
Low Hazard 12 ftBig Lake
Apache, AZ
Significant Hazard 24 ftReservation
Apache, AZ
High HazardFrequently Asked Questions
What is the hazard classification of Lee Valley?
Lee Valley is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lee Valley?
Lee Valley is owned by ARIZONA GAME & FISH DEPARTMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lee Valley built?
Lee Valley was completed in 1899, making it 127 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Lee Valley?
Lee Valley serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lee Valley?
Lee Valley has a dam height of 20 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Lee Valley last inspected?
Lee Valley was last inspected on July 23, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.