Ewing Lake Dam
Key Takeaway
Ewing Lake Dam is classified as high hazard in Missouri. It was completed in 1967 and is 59 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 | 39 ft (taller than 89% in MO) |
| Dam Length | 595 ft |
| Dam Type | Earth |
| Max Storage | 881 acre-ft |
| Normal Storage | 528 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,649 cfs |
| Year Completed | 1967 (59 years old) |
| Year Modified | 1993 |
| NID ID | MO10218 |
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
Private
Nearby Dams
Grassy Creek Watershed Dam G- 66
Lewis, MO
Low Hazard 25 ftGrassy Creek Watershed Dam G- 65
Lewis, MO
Low Hazard 27 ftKlocke Lake Dam
Lewis, MO
High Hazard 18 ftGrassy Creek Watershed Dam G- 83
Lewis, MO
Low Hazard 22 ftGrassy Creek Watershed Dam G- 63
Lewis, MO
Low Hazard 23 ftGrassy Creek Watershed Dam G- 85
Lewis, MO
Low Hazard 31 ftGrassy Creek Watershed Dam G- 64
Lewis, MO
Low Hazard 33 ftGrassy Creek Watershed Dam G- 82
Lewis, MO
Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Ewing Lake Dam?
Ewing Lake Dam 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 Ewing Lake Dam?
Ewing Lake Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ewing Lake Dam built?
Ewing Lake Dam was completed in 1967, making it 59 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 Ewing Lake Dam?
Ewing Lake Dam 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 Ewing Lake Dam?
Ewing Lake Dam has a dam height of 39 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 Ewing Lake Dam last inspected?
Ewing Lake Dam was last inspected on April 6, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.