Willow Stream Dam
Willow Stream Dam is an earth dam located in Onondaga County, New York, built in 1997. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Willow Stream Dam
The primary purpose of Willow Stream 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 Town Of Clay (local government). It impounds the Tr-seneca River near Clay.
The dam stands 10 feet tall and stretches 85 feet across, creates a reservoir covering 12 acres, has a storage capacity of 55 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1997, the structure is 29 years old.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/24/2023.
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Location
| State | New York |
| County | Onondaga |
| Nearest City | Clay |
| River/Stream | Tr-seneca River |
| Coordinates | 43.17417, -76.24778 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 85 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 529 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | TOWN OF CLAY |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/24/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY14920 |
| Federal ID | NY14920 |
| More Info | State Dam Safety Program |