Somerville-Mccullah
Key Takeaway
Somerville-Mccullah is classified as high hazard in Colorado. It was completed in 1972 and is 54 years old. Its primary use is irrigation. 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 Height | 42 ft (taller than 83.3% in CO) |
| Dam Length | 1,040 ft |
| Dam Type | Earth |
| Max Storage | 1.4K acre-ft |
| Normal Storage | 947 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 900 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | CO01047 |
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
CITY OF GRAND JUNCTION
Local Government
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High Hazard 88 ftFrequently Asked Questions
What is the hazard classification of Somerville-Mccullah?
Somerville-Mccullah 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 Somerville-Mccullah?
Somerville-Mccullah is owned by CITY OF GRAND JUNCTION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Somerville-Mccullah built?
Somerville-Mccullah 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 Somerville-Mccullah?
Somerville-Mccullah serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Somerville-Mccullah?
Somerville-Mccullah has a dam height of 42 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 Somerville-Mccullah last inspected?
Somerville-Mccullah was last inspected on July 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.