Greene Mountain Lake Dam

Unnamed tributary to Blue Run - VAHU6 JR10 Swift Run· Greene, Virginia· Built 1969· Earth· 37 ft tall
Significant Hazard Recreation Private

Key Takeaway

Greene Mountain Lake Dam is classified as significant hazard in Virginia. It was completed in 1969 and is 57 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 37 ft (taller than 83.5% in VA)
Dam Length450 ft
Dam TypeEarth
Max Storage1.4K acre-ft
Normal Storage508 acre-ft
Surface Area61 acres
Drainage Area7 sq mi
Year Completed1969 (57 years old)
NID IDVA079014

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: February 25, 2022
State Regulated: Yes
Regulatory Agency: Department of Conservation and Recreation

Ownership

Nathaniel Greene Development Company

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Greene Mountain Lake Dam?

Greene Mountain Lake 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 Greene Mountain Lake Dam?

Greene Mountain Lake Dam is owned by Nathaniel Greene Development Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Greene Mountain Lake Dam built?

Greene Mountain Lake Dam was completed in 1969, making it 57 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 Greene Mountain Lake Dam?

Greene Mountain Lake Dam 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 Greene Mountain Lake Dam?

Greene Mountain Lake Dam has a dam height of 37 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 Greene Mountain Lake Dam last inspected?

Greene Mountain Lake Dam was last inspected on February 25, 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.