Mountain Dell
Key Takeaway
Mountain Dell is classified as high hazard in Utah. It was completed in 1916 and is 110 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 650 ft |
| Dam Type | Buttress |
| Max Storage | 3.5K acre-ft |
| Normal Storage | 3.2K acre-ft |
| Drainage Area | 39 sq mi |
| Max Discharge | 412 cfs |
| Year Completed | 1916 (110 years old) |
| NID ID | UT00221 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
SALT LAKE CITY CORPORATION
Local Government
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Significant HazardFrequently Asked Questions
What is the hazard classification of Mountain Dell?
Mountain Dell is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mountain Dell?
Mountain Dell is owned by SALT LAKE CITY CORPORATION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mountain Dell built?
Mountain Dell was completed in 1916, making it 110 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 Mountain Dell?
Mountain Dell serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Mountain Dell last inspected?
Mountain Dell was last inspected on September 8, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.