Sylvania Lake Dam

Mill Creek· Johnston, North Carolina· Built 1973· Earth·
Low Hazard Recreation Private

Key Takeaway

Sylvania Lake Dam is classified as low hazard in North Carolina. It was completed in 1973 and is 53 years old. Its primary use is recreation.

Physical Details

Dam Length1,200 ft
Dam TypeEarth
Max Storage190 acre-ft
Normal Storage156 acre-ft
Drainage Area45 sq mi
Max Discharge165 cfs
Year Completed1973 (53 years old)
NID IDNC00966

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: March 10, 2000
State Regulated: No

Ownership

Boy Scouts of America

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sylvania Lake Dam?

Sylvania Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Sylvania Lake Dam?

Sylvania Lake Dam is owned by Boy Scouts of America (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sylvania Lake Dam built?

Sylvania Lake Dam was completed in 1973, making it 53 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 Sylvania Lake Dam?

Sylvania 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 Sylvania Lake Dam last inspected?

Sylvania Lake Dam was last inspected on March 10, 2000. 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.