Lenape Lake Dam is an earth dam located in Sullivan County, New York, built in 1920. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 75 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 Lenape Lake Dam
The primary purpose of Lenape Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lenape Lake Inc (private). It impounds the Tr-matawa Lake near Morsston.
The dam stands 20 feet tall and stretches 75 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 260 acre-feet. Completed in 1920, the structure is over a century old.
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 01/19/2010. That was over 16 years ago.
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Location
| State | New York |
| County | Sullivan |
| Nearest City | Morsston |
| River/Stream | Tr-matawa Lake |
| Coordinates | 41.86167, -74.81833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 75 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 26 acres |
| Max Discharge | 95 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lenape Lake Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/19/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY01281 |
| Federal ID | NY01281 |
| More Info | State Dam Safety Program |