St. Anthony Falls Upper Lock and Dam
Key Takeaway
St. Anthony Falls Upper Lock and Dam is classified as significant hazard in Minnesota. It was completed in 1963 and is 63 years old. Its primary use is navigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 83 ft (taller than 99% in MN) |
| Dam Length | 1,900 ft |
| Dam Type | Concrete |
| Max Storage | 4.9K acre-ft |
| Normal Storage | 3.2K acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 19,680 sq mi |
| Max Discharge | 91,000 cfs |
| Year Completed | 1963 (63 years old) |
| NID ID | MN00590 |
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
USACE - St. Paul District; Xcel Energy
Federal Government
Nearby Dams
St. Anthony Falls Lower Lock and Dam
Hennepin, MN
Significant Hazard 41 ftMississippi River Locks and Dam 1
Hennepin, MN
Significant Hazard 49 ftHansen Park
Ramsey, MN
Low Hazard 7 ftLocke Lake
Anoka, MN
Significant Hazard 21 ftSnelling Lake
Hennepin, MN
Low Hazard 12 ftRound Lake
Ramsey, MN
Low Hazard 10 ftMac Pond 2
Hennepin, MN
Low Hazard 35 ftArlington Detention
Ramsey, MN
Significant Hazard 10 ftFrequently Asked Questions
What is the hazard classification of St. Anthony Falls Upper Lock and Dam?
St. Anthony Falls Upper Lock and Dam 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 St. Anthony Falls Upper Lock and Dam?
St. Anthony Falls Upper Lock and Dam is owned by USACE - St. Paul District; Xcel Energy (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was St. Anthony Falls Upper Lock and Dam built?
St. Anthony Falls Upper Lock and Dam was completed in 1963, making it 63 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 St. Anthony Falls Upper Lock and Dam?
St. Anthony Falls Upper Lock and Dam serves the following purposes: Navigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is St. Anthony Falls Upper Lock and Dam?
St. Anthony Falls Upper Lock and Dam has a dam height of 83 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 St. Anthony Falls Upper Lock and Dam last inspected?
St. Anthony Falls Upper Lock and Dam was last inspected on October 6, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.