Emma Lake Dam

Rockaway River· Morris, New Jersey· Earth· 10 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Emma Lake Dam is classified as low hazard in New Jersey. Its primary use is flood risk reduction.

Physical Details

Dam Height 10 ft (taller than 17.8% in NJ)
Dam Length175 ft
Dam TypeEarth
Max Storage90 acre-ft
Normal Storage72 acre-ft
Surface Area20 acres
Drainage Area0 sq mi
Max Discharge10 cfs
NID IDNJ00730

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 26, 2004
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Antonio G. Ginard

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Emma Lake Dam?

Emma 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 Emma Lake Dam?

Emma Lake Dam is owned by Antonio G. Ginard (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Emma Lake Dam?

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

How tall is Emma Lake Dam?

Emma Lake Dam has a dam height of 10 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 Emma Lake Dam last inspected?

Emma Lake Dam was last inspected on April 26, 2004. 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.