Lake Sonoma Dam
Lake Sonoma Dam is an earth dam located in Passaic County, New Jersey, built in 1948. It carries a Low hazard potential classification.
About Lake Sonoma Dam
The primary purpose of Lake Sonoma Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Division Of Parks And Forestry (state). It impounds the Wanaque River near Ringwood Boro.
The dam stands 24 feet tall and stretches 215 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 04/14/2005. That was over 20 years ago.
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Location
| State | New Jersey |
| County | Passaic |
| Nearest City | Ringwood Boro |
| River/Stream | Wanaque River |
| Coordinates | 41.10125, -74.33678 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 215 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 340 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Parks and Forestry |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 04/14/2005 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00193 |
| Federal ID | NJ00193 |
| More Info | State Dam Safety Program |