Cold Spring Lake Dam is an earth dam located in Passaic County, New Jersey, built in 1890. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 300 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Cold Spring Lake Dam
The primary purpose of Cold Spring Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Star Lake Camp and Conference Center (private). It impounds the Peaquannock River near Bloomingdale.
The dam stands 16 feet tall and stretches 300 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1890, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/02/2023.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Jersey |
| County | Passaic |
| Nearest City | Bloomingdale |
| River/Stream | Peaquannock River |
| Coordinates | 41.01287, -74.35127 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 300 ft |
| Year Completed | 1890 (136 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 4,123 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Star Lake Camp and Conference Center |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/02/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00226 |
| Federal ID | NJ00226 |
| More Info | State Dam Safety Program |