Langdon Lake Dam #1

Mill Branch· Johnston, North Carolina· Built 1940· Earth·
Low Hazard Irrigation Recreation Private

Key Takeaway

Langdon Lake Dam #1 is classified as low hazard in North Carolina. It was completed in 1940 and is 86 years old. Its primary use is irrigation.

Physical Details

Dam Length560 ft
Dam TypeEarth
Max Storage130 acre-ft
Normal Storage107 acre-ft
Surface Area4 acres
Drainage Area1,231 sq mi
Max Discharge122 cfs
Year Completed1940 (86 years old)
NID IDNC00958

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: December 18, 2017
State Regulated: No

Ownership

Alex C Langdon

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Langdon Lake Dam #1?

Langdon Lake Dam #1 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 Langdon Lake Dam #1?

Langdon Lake Dam #1 is owned by Alex C Langdon (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Langdon Lake Dam #1 built?

Langdon Lake Dam #1 was completed in 1940, making it 86 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 Langdon Lake Dam #1?

Langdon Lake Dam #1 serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Langdon Lake Dam #1 last inspected?

Langdon Lake Dam #1 was last inspected on December 18, 2017. 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.