Manasquan Reservoir Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | New Jersey |
| County | Monmouth |
| Nearest City | Howell |
| River/Stream | Timber Swamp Brook |
| Coordinates | 40.17935, -74.19350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 53 ft |
| Dam Height | 53 ft |
| Dam Length | 4,840 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 18,470 acre-ft |
| Max Storage | 18,470 acre-ft |
| Normal Storage | 14,470 acre-ft |
| Surface Area | 770 acres |
| Drainage Area | 3 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | New Jersey Water Supply Authority |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/22/2024 |
| Emergency Action Plan | Yes |