Milton Seaman
Key Takeaway
Milton Seaman is classified as high hazard in Colorado. It was completed in 1948 and is 78 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 Height | 115 ft (taller than 97.1% in CO) |
| Dam Length | 410 ft |
| Dam Type | Earth |
| Max Storage | 7.9K acre-ft |
| Normal Storage | 5.0K acre-ft |
| Surface Area | 146 acres |
| Drainage Area | 541 sq mi |
| Max Discharge | 47,600 cfs |
| Year Completed | 1948 (78 years old) |
| NID ID | CO00143 |
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 GREELEY DEPT. OF WATER RESOURCES (GUSTAFSO
Local Government
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High Hazard 155 ftFrequently Asked Questions
What is the hazard classification of Milton Seaman?
Milton Seaman 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 Milton Seaman?
Milton Seaman is owned by CITY OF GREELEY DEPT. OF WATER RESOURCES (GUSTAFSO (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Milton Seaman built?
Milton Seaman was completed in 1948, making it 78 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 Milton Seaman?
Milton Seaman serves the following purposes: Water Supply, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Milton Seaman?
Milton Seaman has a dam height of 115 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 Milton Seaman last inspected?
Milton Seaman was last inspected on October 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.