New Jersey No Name # 113 Dam is an earth dam located in Ocean County, New Jersey, built in 1965. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 100 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 New Jersey No Name # 113 Dam
The primary purpose of New Jersey No Name # 113 Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Holiday City Assoc. (private). It impounds the Polhemus Branch.
The dam stands 10 feet tall and stretches 100 feet across, creates a reservoir covering 25 acres, has a storage capacity of 120 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1965, the structure is well into its service life at over 50 years 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 03/28/2025.
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Location
| State | New Jersey |
| County | Ocean |
| River/Stream | Polhemus Branch |
| Coordinates | 40.02318, -74.16248 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 100 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 650 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Holiday City Assoc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/28/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00761 |
| Federal ID | NJ00761 |
| More Info | State Dam Safety Program |