Bass Lake Dam
Bass Lake Dam is a concrete dam located in Warren County, New Jersey, built in 1911. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Bass Lake Dam
The primary purpose of Bass Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Princeton Blairstown Center (private). It impounds the Blairs Creek near Blairstown.
The dam stands 30 feet tall and stretches 108 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 325 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1911, the structure is over a century old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 10/12/2023.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Jersey dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Jersey |
| County | Warren |
| Nearest City | Blairstown |
| River/Stream | Blairs Creek |
| Coordinates | 41.02357, -74.95282 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 108 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 325 acre-ft |
| Max Storage | 325 acre-ft |
| Normal Storage | 310 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 63 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Princeton Blairstown Center |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/12/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00271 |
| Federal ID | NJ00271 |
| More Info | State Dam Safety Program |