Cedar Grove South Res Dam
Key Takeaway
Cedar Grove South Res Dam is classified as high hazard in New Jersey. It was completed in 1903 and is 123 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 51 ft (taller than 96.3% in NJ) |
| Dam Length | 587 ft |
| Dam Type | Earth |
| Max Storage | 2.6K acre-ft |
| Normal Storage | 2.1K acre-ft |
| Surface Area | 98 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1903 (123 years old) |
| NID ID | NJ00549 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
City of Newark, Department of Water and Sewer Utilities
Local Government
Nearby Dams
Cedar Grove West Res Dam
Essex, NJ
High Hazard 55 ftCedar Grove North Res Dam
Passaic, NJ
High Hazard 51 ftYantacaw Brook Dam
Essex, NJ
Significant Hazard 8 ftGreat Notch Reservoir Dam
Passaic, NJ
High Hazard 74 ftBeatties Mill Dam
Passaic, NJ
Low Hazard 12 ftVerona Lake Dam
Essex, NJ
High Hazard 13 ftNew Street Reservoir Dam
Passaic, NJ
High Hazard 26 ftHighland Lake Dam
Passaic, NJ
High Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Cedar Grove South Res Dam?
Cedar Grove South Res Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Cedar Grove South Res Dam?
Cedar Grove South Res Dam is owned by City of Newark, Department of Water and Sewer Utilities (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cedar Grove South Res Dam built?
Cedar Grove South Res Dam was completed in 1903, making it 123 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Cedar Grove South Res Dam?
Cedar Grove South Res 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 Cedar Grove South Res Dam?
Cedar Grove South Res Dam has a dam height of 51 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 Cedar Grove South Res Dam last inspected?
Cedar Grove South Res Dam was last inspected on April 13, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.