Griffith Dam is an earth dam located in Morris County, New Jersey. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 390 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 Griffith Dam
The primary purpose of Griffith Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hawk Hill, Inc. (private). It impounds the Rockaway River-tr.
The dam stands 9 feet tall and stretches 390 feet across, creates a reservoir covering 2 acres, has a storage capacity of 54 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/12/2001. That was over 25 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Jersey |
| County | Morris |
| River/Stream | Rockaway River-tr |
| Coordinates | 40.92082, -74.41767 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 390 ft |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Hawk Hill, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/12/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00752 |
| Federal ID | NJ00752 |
| More Info | State Dam Safety Program |