Lower Morgan
Key Takeaway
Lower Morgan is classified as significant hazard in Wyoming. It was completed in 2001 and is 25 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 70 ft (taller than 96.8% in WY) |
| Dam Length | 839 ft |
| Dam Type | Earth |
| Max Storage | 338 acre-ft |
| Normal Storage | 227 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,940 cfs |
| Year Completed | 2001 (25 years old) |
| NID ID | WY02297 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ELIZABETH G. RICE REVOCABLE TRUST & JOHN WILLIAM MANKIN REVOCABLE TRUST
Private
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Low Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Lower Morgan?
Lower Morgan is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lower Morgan?
Lower Morgan is owned by ELIZABETH G. RICE REVOCABLE TRUST & JOHN WILLIAM MANKIN REVOCABLE TRUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lower Morgan built?
Lower Morgan was completed in 2001, making it 25 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 Lower Morgan?
Lower Morgan serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Other, 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 Lower Morgan?
Lower Morgan has a dam height of 70 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 Lower Morgan last inspected?
Lower Morgan was last inspected on April 27, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.