Butterfly Bogs Dam

Dove Branch· Ocean, New Jersey· Earth· 8 ft tall
Significant Hazard Recreation State Government

Key Takeaway

Butterfly Bogs 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 8 ft (taller than 5.1% in NJ)
Dam Length500 ft
Dam TypeEarth
Max Storage400 acre-ft
Normal Storage250 acre-ft
Surface Area50 acres
Drainage Area5 sq mi
NID IDNJ00870

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: July 28, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Division of Fish & Wildlife

State Government

Nearby Dams

Bunker Hill Dam

Ocean, NJ

Low Hazard 16 ft

Bennetts Mills Dam

Ocean, NJ

Significant Hazard 23 ft

Jacksons Mills Dam

Ocean, NJ

Significant Hazard 15 ft

Forest Drive Dam

Ocean, NJ

Significant Hazard 10 ft

New Jersey No Name # 23 Dam

Ocean, NJ

Low Hazard 8 ft

Cassville Dam

Ocean, NJ

Significant Hazard 6 ft

Lake Horicon Dam

Ocean, NJ

Low Hazard 7 ft

Lake Carasaljo Dam

Ocean, NJ

High Hazard 16 ft

Frequently Asked Questions

What is the hazard classification of Butterfly Bogs Dam?

Butterfly Bogs 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 Butterfly Bogs Dam?

Butterfly Bogs Dam is owned by Division of Fish & Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Butterfly Bogs Dam?

Butterfly Bogs 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 Butterfly Bogs Dam?

Butterfly Bogs Dam has a dam height of 8 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 Butterfly Bogs Dam last inspected?

Butterfly Bogs Dam was last inspected on July 28, 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.