Thunder Lake Dam

Clear Creek· Transylvania, North Carolina· Built 1962· Earth·
High Hazard Recreation Private

Key Takeaway

Thunder Lake Dam is classified as high hazard in North Carolina. It was completed in 1962 and is 64 years old. Its primary use is recreation. 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 Length550 ft
Dam TypeEarth
Max Storage870 acre-ft
Normal Storage704 acre-ft
Surface Area40 acres
Year Completed1962 (64 years old)
NID IDNC00168

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: No
Last Inspection: February 21, 2023
State Regulated: Yes
Regulatory Agency: NCDEQ, DEMLR, Dam Safety Program

Ownership

The Mary Stone Fraser Limited Partnership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Thunder Lake Dam?

Thunder Lake 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 Thunder Lake Dam?

Thunder Lake Dam is owned by The Mary Stone Fraser Limited Partnership (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Thunder Lake Dam built?

Thunder Lake Dam was completed in 1962, making it 64 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 Thunder Lake Dam?

Thunder 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.

When was Thunder Lake Dam last inspected?

Thunder Lake Dam was last inspected on February 21, 2023. 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.