Thiensville
Key Takeaway
Thiensville is classified as low hazard in Wisconsin. It was completed in 1842 and is 184 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 35.2% in WI) |
| Dam Length | 370 ft |
| Dam Type | Gravity |
| Max Storage | 2.2K acre-ft |
| Normal Storage | 700 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 594 sq mi |
| Max Discharge | 7,600 cfs |
| Year Completed | 1842 (184 years old) |
| NID ID | WI00539 |
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
City of Mequon
Local Government
Nearby Dams
Northridge Lakes Res. Devlop
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Low Hazard 15 ftWire and Nail Factory
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Significant Hazard 18 ftGrafton
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Significant Hazard 20 ftKletzsch Park
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High Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Thiensville?
Thiensville 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 Thiensville?
Thiensville is owned by City of Mequon (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thiensville built?
Thiensville was completed in 1842, making it 184 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 Thiensville?
Thiensville serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Thiensville?
Thiensville has a dam height of 13 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 Thiensville last inspected?
Thiensville was last inspected on August 24, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.