Upper Lake Mary

Coconino County, Arizona (near WALNUT CANYON NATIONAL MONUMENT & I-40)

River/Stream: WALNUT CREEK

Significant Hazard

Failure could cause economic loss or disruption

Key Facts

Dam Type
Earth
Height
49 ft
Dam Length
845 ft
Reservoir Storage
21,041 acre-ft
Year Completed
1941
Primary Purpose
Recreation
Owner Type
Local Government
Max Discharge
11,000 cfs

Condition Assessment

SatisfactoryLast inspected: 2024-09-18

Hazard Classification: Significant — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Satisfactory — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
AZ00016
State
Arizona (AZ)
Coordinates
35.08083, -111.53361
Age
85 years

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.