Lake Kathryn Dam

Trout Brook· Sussex, New Jersey· Built 1926· Earth· 12 ft tall
Low Hazard Recreation Private

Key Takeaway

Lake Kathryn Dam is classified as low hazard in New Jersey. It was completed in 1926 and is 100 years old. Its primary use is recreation.

Physical Details

Dam Height 12 ft (taller than 31.2% in NJ)
Dam Length250 ft
Dam TypeEarth
Normal Storage84 acre-ft
Surface Area12 acres
Drainage Area0 sq mi
Year Completed1926 (100 years old)
NID IDNJ00269

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: April 11, 2015
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Mountain Shadows Lake Assoc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Kathryn Dam?

Lake Kathryn 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 Lake Kathryn Dam?

Lake Kathryn Dam is owned by Mountain Shadows Lake Assoc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Kathryn Dam built?

Lake Kathryn Dam was completed in 1926, making it 100 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 Lake Kathryn Dam?

Lake Kathryn 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 Lake Kathryn Dam?

Lake Kathryn Dam has a dam height of 12 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 Lake Kathryn Dam last inspected?

Lake Kathryn Dam was last inspected on April 11, 2015. 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.