Speedwell Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | New Jersey |
| County | Morris |
| Nearest City | Morristown |
| River/Stream | Whippany River |
| Coordinates | 40.81305, -74.48133 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 145 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 349 acre-ft |
| Max Storage | 349 acre-ft |
| Normal Storage | 77 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 4,255 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Morristown |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/11/2023 |
| Emergency Action Plan | Yes |