Lower Columbia Quarry Dam
Key Takeaway
Lower Columbia Quarry Dam is classified as low hazard in Illinois. Its primary use is water supply.
Physical Details
| Dam Height | 30 ft (taller than 61.3% in IL) |
| Dam Length | 600 ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 40 acre-ft |
| NID ID | IL50686 |
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
Private
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Lower Columbia Quarry Dam?
Lower Columbia Quarry 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 Lower Columbia Quarry Dam?
Lower Columbia Quarry Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Lower Columbia Quarry Dam?
Lower Columbia Quarry 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 Lower Columbia Quarry Dam?
Lower Columbia Quarry Dam has a dam height of 30 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 Lower Columbia Quarry Dam last inspected?
Lower Columbia Quarry Dam was last inspected on May 30, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.