Ninth Parallel
Key Takeaway
Ninth Parallel is classified as low hazard in Wyoming. It was completed in 1972 and is 54 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 39.5% in WY) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 250 acre-ft |
| Normal Storage | 131 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 489 cfs |
| Year Completed | 1972 (54 years old) |
| Year Modified | 1989 |
| NID ID | WY02103 |
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
TWIN EAGLE RANCH LLC ATTN: CLINE TRUST CO
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Ninth Parallel?
Ninth Parallel 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 Ninth Parallel?
Ninth Parallel is owned by TWIN EAGLE RANCH LLC ATTN: CLINE TRUST CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ninth Parallel built?
Ninth Parallel was completed in 1972, making it 54 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 Ninth Parallel?
Ninth Parallel serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ninth Parallel?
Ninth Parallel has a dam height of 25 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 Ninth Parallel last inspected?
Ninth Parallel was last inspected on August 11, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.