Ontario Millpond Dam
Key Takeaway
Ontario Millpond Dam is classified as significant hazard in Indiana. It was completed in 1920 and is 106 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 16 ft (taller than 11.2% in IN) |
| Dam Length | 120 ft |
| Dam Type | Earth |
| Max Storage | 0 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 236 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | IN00347 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
INDIANA DEPARTMENT OF NATURAL RESOURCES
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Ontario Millpond Dam?
Ontario Millpond Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Ontario Millpond Dam?
Ontario Millpond Dam is owned by INDIANA DEPARTMENT OF NATURAL RESOURCES (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ontario Millpond Dam built?
Ontario Millpond Dam was completed in 1920, making it 106 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 Ontario Millpond Dam?
Ontario Millpond Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ontario Millpond Dam?
Ontario Millpond Dam has a dam height of 16 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 Ontario Millpond Dam last inspected?
Ontario Millpond Dam was last inspected on August 1, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.