Hemlock Pond Dam

Flat Brook-TR· Sussex, New Jersey· Earth· 15 ft tall
Low Hazard Recreation Federal Government

Key Takeaway

Hemlock Pond Dam is classified as low hazard in New Jersey. Its primary use is recreation.

Physical Details

Dam Height 15 ft (taller than 51.4% in NJ)
Dam Length380 ft
Dam TypeEarth
Normal Storage200 acre-ft
Surface Area25 acres
Drainage Area0 sq mi
NID IDNJ00830

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 10, 2001
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

National Park Service

Federal Government

Nearby Dams

Long Pine Pond Dam

Sussex, NJ

Low Hazard 10 ft

Lake Kathryn Dam

Sussex, NJ

Low Hazard 12 ft

Lake Kathryn South Dam

Sussex, NJ

Low Hazard 10 ft

Lake Plymouth Dam

Sussex, NJ

Significant Hazard 14 ft

Blue Mt Lake Dam

Sussex, NJ

Low Hazard 25 ft

Tall Pines Farm Dam

Sussex, NJ

Significant Hazard 23 ft

Lower Crandon Lake Dam

Sussex, NJ

Low Hazard 8 ft

Crandon Lake Dam

Sussex, NJ

High Hazard 20 ft

Frequently Asked Questions

What is the hazard classification of Hemlock Pond Dam?

Hemlock Pond 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 Hemlock Pond Dam?

Hemlock Pond Dam is owned by National Park Service (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Hemlock Pond Dam?

Hemlock Pond 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 Hemlock Pond Dam?

Hemlock Pond Dam has a dam height of 15 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 Hemlock Pond Dam last inspected?

Hemlock Pond Dam was last inspected on April 10, 2001. 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.