Lake Creek
Key Takeaway
Lake Creek is classified as high hazard in Montana. It was completed in 1917 and is 109 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 44 ft (taller than 95.7% in MT) |
| Dam Length | 268 ft |
| Dam Type | Gravity |
| Max Storage | 249 acre-ft |
| Normal Storage | 249 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 215 sq mi |
| Max Discharge | 6,925 cfs |
| Year Completed | 1917 (109 years old) |
| NID ID | MT00221 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Northern Lights, Inc.
Private
Frequently Asked Questions
What is the hazard classification of Lake Creek?
Lake Creek is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Creek?
Lake Creek is owned by Northern Lights, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Creek built?
Lake Creek was completed in 1917, making it 109 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 Lake Creek?
Lake Creek serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Creek?
Lake Creek has a dam height of 44 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 Lake Creek last inspected?
Lake Creek was last inspected on August 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.