Eden Mill Dam

Whippany River· Morris, New Jersey· Concrete· 12 ft tall
Significant Hazard Water Supply Private

Key Takeaway

Eden Mill Dam is classified as significant hazard in New Jersey. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 12 ft (taller than 31.2% in NJ)
Dam Length178 ft
Dam TypeConcrete
Normal Storage43 acre-ft
Surface Area13 acres
Drainage Area32 sq mi
Max Discharge129 cfs
NID IDNJ00791

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 9, 2020
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

River Park Business Center, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Eden Mill Dam?

Eden Mill Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Eden Mill Dam?

Eden Mill Dam is owned by River Park Business Center, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Eden Mill Dam?

Eden Mill Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Eden Mill Dam?

Eden Mill 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 Eden Mill Dam last inspected?

Eden Mill Dam was last inspected on June 9, 2020. 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.