Osborns Mills Dam

Wreck Pond Brook· Monmouth, New Jersey· Earth· 12 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Osborns Mills Dam is classified as significant hazard in New Jersey. Its primary use is recreation. 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 Length450 ft
Dam TypeEarth
Normal Storage108 acre-ft
Surface Area25 acres
Drainage Area8 sq mi
Max Discharge100 cfs
NID IDNJ00087

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: May 18, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Township of Wall

Local Government

Nearby Dams

Old Mill Pond Dam

Monmouth, NJ

Significant Hazard 15 ft

Stabilization/Leveling Pond Dam

Monmouth, NJ

Low Hazard 10 ft

Hurley Pond Dam

Monmouth, NJ

Significant Hazard 6 ft

Wreck Pond Dam

Monmouth, NJ

Low Hazard 20 ft

Glendola Reservoir Dam

Monmouth, NJ

High Hazard 65 ft

Jumping Brook Dam

Monmouth, NJ

Low Hazard 10 ft

Wetland Area I-2 Dam

Monmouth, NJ

Low Hazard 9 ft

Brisbane Lake Dam

Monmouth, NJ

Significant Hazard 14 ft

Frequently Asked Questions

What is the hazard classification of Osborns Mills Dam?

Osborns Mills 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 Osborns Mills Dam?

Osborns Mills Dam is owned by Township of Wall (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Osborns Mills Dam?

Osborns Mills 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 Osborns Mills Dam?

Osborns Mills 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 Osborns Mills Dam last inspected?

Osborns Mills Dam was last inspected on May 18, 2022. 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.