Flower Creek Dam

FLOWER CREEK· Lincoln, Montana· Built 2016· Concrete· 59 ft tall
High Hazard Water Supply Local Government

Key Takeaway

Flower Creek Dam is classified as high hazard in Montana. It was completed in 2016 and is 10 years old. Its primary use is water supply. 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 59 ft (taller than 97.5% in MT)
Dam Length118 ft
Dam TypeConcrete
Max Storage285 acre-ft
Normal Storage221 acre-ft
Surface Area12 acres
Drainage Area15 sq mi
Max Discharge1,790 cfs
Year Completed2016 (10 years old)
NID IDMT01458

Safety Information

High Hazard

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?

Emergency Action Plan: Yes
Last Inspection: August 10, 2021
State Regulated: Yes
Regulatory Agency: DNRC

Ownership

CITY OF LIBBY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Flower Creek Dam?

Flower Creek Dam 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 Flower Creek Dam?

Flower Creek Dam is owned by CITY OF LIBBY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Flower Creek Dam built?

Flower Creek Dam was completed in 2016, making it 10 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 Flower Creek Dam?

Flower Creek Dam 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 Flower Creek Dam?

Flower Creek Dam has a dam height of 59 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 Flower Creek Dam last inspected?

Flower Creek Dam was last inspected on August 10, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.