Jonquil
Key Takeaway
Jonquil is classified as low hazard in Montana. It was completed in 1938 and is 88 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 15 ft (taller than 18.8% in MT) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 67 acre-ft |
| Normal Storage | 20 acre-ft |
| Year Completed | 1938 (88 years old) |
| NID ID | MT03393 |
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
EARL/VALERIE LARSON
Private
Nearby Dams
Wolf Coulee Dam
Teton, MT
Significant Hazard 38 ftCostly Coulee Reservoir
Teton, MT
Low Hazard 15 ftYoung Clemons
Teton, MT
Low Hazard 18 ftDougcliff Reservoir
Teton, MT
Low Hazard 20 ftFreak Out
Teton, MT
Low Hazard 20 ftGordan Lightfoot
Teton, MT
Low Hazard 25 ftYoung Sun
Teton, MT
Low Hazard 15 ftWillow Creek Bor Mt
Lewis and Clark, MT
High Hazard 74 ftFrequently Asked Questions
What is the hazard classification of Jonquil?
Jonquil 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 Jonquil?
Jonquil is owned by EARL/VALERIE LARSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jonquil built?
Jonquil was completed in 1938, making it 88 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 Jonquil?
Jonquil serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jonquil?
Jonquil has a dam height of 15 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.