Hopkins Lake Dam is an earth dam located in Camden County, New Jersey. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 210 ft long, taller than 50% of U.S. dams with a recorded height. 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 Hopkins Lake Dam
The primary purpose of Hopkins Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by County of Camden Park Commission (local government). It impounds the Cooper River near Haddonfield.
The dam stands 25 feet tall and stretches 210 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 24 acre-feet, and collects water from a drainage area of 0 square miles.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/29/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Jersey |
| County | Camden |
| Nearest City | Haddonfield |
| River/Stream | Cooper River |
| Coordinates | 39.90528, -75.02747 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 210 ft |
Storage & Hydraulics
| NID Storage | 24 acre-ft |
| Max Storage | 24 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 650 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | County of Camden Park Commission |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 07/29/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00648 |
| Federal ID | NJ00648 |
| More Info | State Dam Safety Program |