Allen Street Detention Pond Dam is an earth dam located in Chautauqua County, New York. It carries a Significant hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 180 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 Allen Street Detention Pond Dam
The primary purpose of Allen Street Detention Pond 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 Chautauqua County (local government). It impounds the Os-chadakoin River near Jamestown.
The dam stands 21 feet tall and stretches 180 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 7 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 09/07/2023.
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Location
| State | New York |
| County | Chautauqua |
| Nearest City | Jamestown |
| River/Stream | Os-chadakoin River |
| Coordinates | 42.10444, -79.21194 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 180 ft |
Storage & Hydraulics
| NID Storage | 7 acre-ft |
| Max Storage | 7 acre-ft |
| Normal Storage | 5 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Chautauqua County |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 09/07/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY15041 |
| Federal ID | NY15041 |
| More Info | State Dam Safety Program |