Riggs Flat
Key Takeaway
Riggs Flat is classified as low hazard in Arizona. It was completed in 1951 and is 75 years old. Its primary use is recreation.
Physical Details
| Dam Height | 45 ft (taller than 75.2% in AZ) |
| Dam Length | 390 ft |
| Dam Type | Earth |
| Max Storage | 155 acre-ft |
| Normal Storage | 123 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 400 cfs |
| Year Completed | 1951 (75 years old) |
| NID ID | AZ00090 |
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
ARIZONA GAME & FISH DEPARTMENT
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Riggs Flat?
Riggs Flat 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 Riggs Flat?
Riggs Flat is owned by ARIZONA GAME & FISH DEPARTMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Riggs Flat built?
Riggs Flat was completed in 1951, making it 75 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 Riggs Flat?
Riggs Flat serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Riggs Flat?
Riggs Flat has a dam height of 45 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 Riggs Flat last inspected?
Riggs Flat was last inspected on December 3, 2013. Inspection dates indicate when a formal review occurred, not the results of that inspection.