J. N. Mertz
Key Takeaway
J. N. Mertz is classified as low hazard in Wyoming. It was completed in 1903 and is 123 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 13 ft (taller than 7.6% in WY) |
| Dam Length | 1,590 ft |
| Dam Type | Earth |
| Max Storage | 156 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1903 (123 years old) |
| NID ID | WY00027 |
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
OLD HOME LLC
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of J. N. Mertz?
J. N. Mertz 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 J. N. Mertz?
J. N. Mertz is owned by OLD HOME LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was J. N. Mertz built?
J. N. Mertz was completed in 1903, making it 123 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 J. N. Mertz?
J. N. Mertz 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 J. N. Mertz?
J. N. Mertz 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 J. N. Mertz last inspected?
J. N. Mertz was last inspected on March 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.