Lake Marcia Dam

Big Flat Brook· Sussex, New Jersey· Earth· 15 ft tall
Low Hazard Recreation State Government

Key Takeaway

Lake Marcia Dam is classified as low hazard in New Jersey. Its primary use is recreation.

Physical Details

Dam Height 15 ft (taller than 51.4% in NJ)
Dam Length120 ft
Dam TypeEarth
Normal Storage140 acre-ft
Surface Area25 acres
Drainage Area0 sq mi
NID IDNJ00495

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: December 30, 2002
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Division of Parks and Forestry

State Government

Nearby Dams

Steenykill Lake Dam

Sussex, NJ

High Hazard 25 ft

John'S Lake Dam

Sussex, NJ

Low Hazard 11 ft

Sawmill Pond Dam

Sussex, NJ

Low Hazard 15 ft

Lake Rutherford Dam

Sussex, NJ

High Hazard 12 ft

Colesville Reservoir Dam

Sussex, NJ

Significant Hazard 15 ft

Fountain House Dam

Sussex, NJ

Significant Hazard 12 ft

Lake Hawthorne Dam

Orange, NY

Low Hazard 10 ft

Port Jervis Reservoir #1 Dam

Orange, NY

High Hazard 20 ft

Frequently Asked Questions

What is the hazard classification of Lake Marcia Dam?

Lake Marcia 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 Lake Marcia Dam?

Lake Marcia Dam is owned by Division of Parks and Forestry (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Lake Marcia Dam?

Lake Marcia 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 Lake Marcia Dam?

Lake Marcia Dam has a dam height of 15 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 Lake Marcia Dam last inspected?

Lake Marcia Dam was last inspected on December 30, 2002. 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.