Combined Locks
Key Takeaway
Combined Locks is classified as significant hazard in Wisconsin. It was completed in 1912 and is 114 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 23 ft (taller than 67% in WI) |
| Dam Length | 653 ft |
| Dam Type | Gravity |
| Max Storage | 1.7K acre-ft |
| Normal Storage | 1.6K acre-ft |
| Surface Area | 180 acres |
| Drainage Area | 6,000 sq mi |
| Max Discharge | 20,800 cfs |
| Year Completed | 1912 (114 years old) |
| NID ID | WI00777 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Kaukauna, City of
Local Government
Nearby Dams
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High Hazard 9 ftApple Creek Dam #2
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High Hazard 14 ftLower Appleton Locks and Dam
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Combined Locks?
Combined Locks is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Combined Locks?
Combined Locks is owned by Kaukauna, City of (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Combined Locks built?
Combined Locks was completed in 1912, making it 114 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 Combined Locks?
Combined Locks serves the following purposes: Hydroelectric, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Combined Locks?
Combined Locks has a dam height of 23 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 Combined Locks last inspected?
Combined Locks was last inspected on September 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.