Lake George

SO PLATTE RIVER-OS· Park, Colorado· Built 1909· Earth· 18 ft tall
Significant Hazard Recreation Private

Key Takeaway

Lake George is classified as significant hazard in Colorado. It was completed in 1909 and is 117 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 18 ft (taller than 29.2% in CO)
Dam Length1,400 ft
Dam TypeEarth
Max Storage610 acre-ft
Normal Storage270 acre-ft
Surface Area53 acres
Drainage Area0 sq mi
Max Discharge3,400 cfs
Year Completed1909 (117 years old)
NID IDCO00366

Safety Information

Significant Hazard

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?

Emergency Action Plan: Yes
Last Inspection: June 22, 2022
State Regulated: Yes
Regulatory Agency: DWR

Ownership

LAKE GEORGE CO.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake George?

Lake George 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 Lake George?

Lake George is owned by LAKE GEORGE CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake George built?

Lake George was completed in 1909, making it 117 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 George?

Lake George 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 Lake George?

Lake George has a dam height of 18 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 George last inspected?

Lake George was last inspected on June 22, 2022. 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.