Fourth Street East Impoundment Dam is an earth dam located in Jefferson County, New York, built in 1987. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 830 ft long, taller than 65% of U.S. dams with a recorded height. 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 Fourth Street East Impoundment Dam
The primary purpose of Fourth Street East Impoundment Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by United States Army - Fort Drum Dpw (federal). It impounds the Pleasant Creek near Evans Mills.
The dam stands 29 feet tall and stretches 830 feet across, has a maximum storage capacity of 1,470 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1987, the structure is 39 years 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 08/01/1996. That was over 30 years ago.
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Location
| State | New York |
| County | Jefferson |
| Nearest City | Evans Mills |
| River/Stream | Pleasant Creek |
| Coordinates | 44.04972, -75.76861 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 830 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 1,470 acre-ft |
| Max Storage | 1,470 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 381 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | United States Army - Fort Drum Dpw |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/01/1996 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY01561 |
| Federal ID | NY01561 |
| More Info | State Dam Safety Program |