Lucas County Roadgrade Dam 30-72-20
Key Takeaway
Lucas County Roadgrade Dam 30-72-20 is classified as low hazard in Iowa. It was completed in 1983 and is 43 years old. Its primary use is other.
Physical Details
| Dam Height | 30 ft (taller than 48.2% in IA) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 87 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1983 (43 years old) |
| NID ID | IA02203 |
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
Lucas County Board of Supervisors
Private
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Lucas County Roadgrade Dam 30-72-20?
Lucas County Roadgrade Dam 30-72-20 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 Lucas County Roadgrade Dam 30-72-20?
Lucas County Roadgrade Dam 30-72-20 is owned by Lucas County Board of Supervisors (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lucas County Roadgrade Dam 30-72-20 built?
Lucas County Roadgrade Dam 30-72-20 was completed in 1983, making it 43 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 Lucas County Roadgrade Dam 30-72-20?
Lucas County Roadgrade Dam 30-72-20 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lucas County Roadgrade Dam 30-72-20?
Lucas County Roadgrade Dam 30-72-20 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.