Lake Sonoma Dam
Key Takeaway
Lake Sonoma Dam is classified as low hazard in New Jersey. It was completed in 1948 and is 78 years old. Its primary use is recreation.
Physical Details
| Dam Height | 24 ft (taller than 83.4% in NJ) |
| Dam Length | 215 ft |
| Dam Type | Earth |
| Max Storage | 120 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 340 cfs |
| Year Completed | 1948 (78 years old) |
| NID ID | NJ00193 |
Safety Information
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?
Ownership
Division of Parks and Forestry
State Government
Nearby Dams
Carpi Lake Dam
Passaic, NJ
Significant Hazard 12 ftHarrison Mountain Lake Dam
Passaic, NJ
Low Hazard 15 ftKitchell Lake Dam
Passaic, NJ
Significant Hazard 14 ftLake Riconda Dam
Passaic, NJ
Low Hazard 14 ftLower Mount Glen Lake Dam
Passaic, NJ
High Hazard 15 ftUpper Mount Glen Lake Dam
Passaic, NJ
High Hazard 8 ftWest Milford Lake Dam
Passaic, NJ
High Hazard 16 ftGreen Turtle Pond Dam
Passaic, NJ
High Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Lake Sonoma Dam?
Lake Sonoma 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 Sonoma Dam?
Lake Sonoma Dam is owned by Division of Parks and Forestry (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Sonoma Dam built?
Lake Sonoma Dam was completed in 1948, making it 78 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 Lake Sonoma Dam?
Lake Sonoma 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 Sonoma Dam?
Lake Sonoma Dam has a dam height of 24 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 Sonoma Dam last inspected?
Lake Sonoma Dam was last inspected on April 14, 2005. Inspection dates indicate when a formal review occurred, not the results of that inspection.