Harsha Dam
Key Takeaway
Harsha Dam is classified as significant hazard in Iowa. It was completed in 1975 and is 51 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 28 ft (taller than 36.9% in IA) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 79 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | IA01584 |
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
Gale Harsha
Private
Nearby Dams
Axtell Dam
Jasper, IA
Low Hazard 31 ftRodgers Dam
Jasper, IA
Low Hazard 34 ftOwens Dam
Jasper, IA
Low Hazard 33 ftTerlouw Dam
Jasper, IA
Low Hazard 29 ftRozendaal Dam
Jasper, IA
Low Hazard 23 ftMariposa Lake Dam
Jasper, IA
Low Hazard 25 ftTrotter Dam
Jasper, IA
Low Hazard 31 ftNewton Koa Campground Dam
Jasper, IA
Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Harsha Dam?
Harsha 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 Harsha Dam?
Harsha Dam is owned by Gale Harsha (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harsha Dam built?
Harsha Dam was completed in 1975, making it 51 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 Harsha Dam?
Harsha Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Harsha Dam?
Harsha Dam has a dam height of 28 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 Harsha Dam last inspected?
Harsha Dam was last inspected on July 20, 1977. Inspection dates indicate when a formal review occurred, not the results of that inspection.