Block Dam
Key Takeaway
Block Dam is classified as low hazard in Iowa. It was completed in 1967 and is 59 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 34 ft (taller than 67.4% in IA) |
| Dam Length | 524 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1967 (59 years old) |
| NID ID | IA00276 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Fritz Block Estate
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Block Dam?
Block Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Block Dam?
Block Dam is owned by Fritz Block Estate (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Block Dam built?
Block 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 Block Dam?
Block Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Block Dam?
Block Dam has a dam height of 34 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.