Marlu Lake Dam

Branch of Hop Brook· Monmouth, New Jersey· Built 1965· Earth· 29 ft tall
Low Hazard Irrigation Local Government

Key Takeaway

Marlu Lake Dam is classified as low hazard in New Jersey. It was completed in 1965 and is 61 years old. Its primary use is irrigation.

Physical Details

Dam Height 29 ft (taller than 89.4% in NJ)
Dam Length424 ft
Dam TypeEarth
Normal Storage82 acre-ft
Surface Area20 acres
Drainage Area1 sq mi
Max Discharge866 cfs
Year Completed1965 (61 years old)
NID IDNJ00098

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: October 24, 2019
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

County of Monmouth Park System

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Marlu Lake Dam?

Marlu 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 Marlu Lake Dam?

Marlu Lake Dam is owned by County of Monmouth Park System (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Marlu Lake Dam built?

Marlu Lake Dam was completed in 1965, making it 61 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 Marlu Lake Dam?

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

How tall is Marlu Lake Dam?

Marlu Lake Dam has a dam height of 29 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 Marlu Lake Dam last inspected?

Marlu Lake Dam was last inspected on October 24, 2019. 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.