Little Reservoir
Key Takeaway
Little Reservoir is classified as low hazard in Arizona. It was completed in 1921 and is 105 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 13 ft (taller than 13.7% in AZ) |
| Dam Length | 639 ft |
| Dam Type | Earth |
| Normal Storage | 1.1K acre-ft |
| Surface Area | 338 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1921 (105 years old) |
| NID ID | AZ00249 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ST. JOHNS IRRIGATION & DITCH CO.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Little Reservoir?
Little Reservoir is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Little Reservoir?
Little Reservoir is owned by ST. JOHNS IRRIGATION & DITCH CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Reservoir built?
Little Reservoir was completed in 1921, making it 105 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 Little Reservoir?
Little Reservoir 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 Little Reservoir?
Little Reservoir has a dam height of 13 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 Little Reservoir last inspected?
Little Reservoir was last inspected on April 18, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.