Yardley Road Lake Dam

Whippany River· Morris, New Jersey· Earth· 30 ft tall
High Hazard Flood Risk Reduction Recreation Private

Key Takeaway

Yardley Road Lake Dam is classified as high hazard in New Jersey. Its primary use is flood risk reduction. 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 Height 30 ft (taller than 90.1% in NJ)
Dam Length187 ft
Dam TypeEarth
Normal Storage45 acre-ft
Surface Area2 acres
Drainage Area1 sq mi
NID IDNJ00927

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: Yes
Last Inspection: June 23, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

KNC Development, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Yardley Road Lake Dam?

Yardley Road 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 Yardley Road Lake Dam?

Yardley Road Lake Dam is owned by KNC Development, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Yardley Road Lake Dam?

Yardley Road Lake Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Yardley Road Lake Dam?

Yardley Road Lake Dam has a dam height of 30 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 Yardley Road Lake Dam last inspected?

Yardley Road Lake Dam was last inspected on June 23, 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.