Mason City-Lehigh Cement Milldam
Key Takeaway
Mason City-Lehigh Cement Milldam is classified as low hazard in Iowa. It was completed in 1924 and is 102 years old. Its primary use is water supply.
Physical Details
| Dam Height | 8 ft (taller than 0.7% in IA) |
| Dam Length | 71 ft |
| Dam Type | Gravity |
| Max Storage | 150 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 26 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1924 (102 years old) |
| NID ID | IA01310 |
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
LeHigh Portland Cement Company
Private
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Mason City-Lehigh Cement Milldam?
Mason City-Lehigh Cement Milldam 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 Mason City-Lehigh Cement Milldam?
Mason City-Lehigh Cement Milldam is owned by LeHigh Portland Cement Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mason City-Lehigh Cement Milldam built?
Mason City-Lehigh Cement Milldam was completed in 1924, making it 102 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 Mason City-Lehigh Cement Milldam?
Mason City-Lehigh Cement Milldam 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 Mason City-Lehigh Cement Milldam?
Mason City-Lehigh Cement Milldam has a dam height of 8 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 Mason City-Lehigh Cement Milldam last inspected?
Mason City-Lehigh Cement Milldam was last inspected on September 28, 1989. Inspection dates indicate when a formal review occurred, not the results of that inspection.