Maple Grove
Key Takeaway
Maple Grove is classified as high hazard in Colorado. It was completed in 1956 and is 70 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 | 52 ft (taller than 89% in CO) |
| Dam Length | 1,150 ft |
| Dam Type | Earth |
| Max Storage | 1.7K acre-ft |
| Normal Storage | 1.1K acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 13,365 cfs |
| Year Completed | 1956 (70 years old) |
| NID ID | CO00203 |
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
CONSOLIDATED MUTUAL WATER CO. (ROBERTS, JAROD)
Public Utility
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High Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Maple Grove?
Maple Grove 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 Maple Grove?
Maple Grove is owned by CONSOLIDATED MUTUAL WATER CO. (ROBERTS, JAROD) (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Maple Grove built?
Maple Grove was completed in 1956, making it 70 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 Maple Grove?
Maple Grove serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Maple Grove?
Maple Grove has a dam height of 52 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 Maple Grove last inspected?
Maple Grove was last inspected on October 4, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.