Grassey Lake
Key Takeaway
Grassey Lake is classified as low hazard in Utah. It was completed in 1945 and is 81 years old. Its primary use is irrigation.
Physical Details
| Dam Length | 620 ft |
| Dam Type | Earth |
| Max Storage | 190 acre-ft |
| Normal Storage | 132 acre-ft |
| Drainage Area | 1 sq mi |
| Year Completed | 1945 (81 years old) |
| NID ID | UT00125 |
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
FOREST SERVICE,U.S. -MANTI-LASAL
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Grassey Lake?
Grassey Lake 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 Grassey Lake?
Grassey Lake is owned by FOREST SERVICE,U.S. -MANTI-LASAL (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grassey Lake built?
Grassey Lake was completed in 1945, making it 81 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 Grassey Lake?
Grassey Lake serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Grassey Lake last inspected?
Grassey Lake was last inspected on October 1, 2002. Inspection dates indicate when a formal review occurred, not the results of that inspection.