Heil No 1
Key Takeaway
Heil No 1 is classified as low hazard in Idaho. It was completed in 1974 and is 52 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 24 ft (taller than 40.9% in ID) |
| Dam Length | 1,380 ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 52 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | ID00159 |
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
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Heil No 1?
Heil No 1 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 Heil No 1?
Heil No 1 is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Heil No 1 built?
Heil No 1 was completed in 1974, making it 52 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 Heil No 1?
Heil No 1 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 Heil No 1?
Heil No 1 has a dam height of 24 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 Heil No 1 last inspected?
Heil No 1 was last inspected on August 1, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.