Hillside Lake Dam
Hillside Lake Dam is an earth dam located in Dutchess County, New York, built in 1934. It carries a Significant hazard potential classification and has a poor condition assessment.
About Hillside Lake Dam
The primary purpose of Hillside Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of East Fishkill (local government). It impounds the Tr-sprout Creek near Swartoutville.
The dam stands 9 feet tall and stretches 300 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1934, the structure is well-established, with more than 75 years of service.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/28/2023.
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Location
| State | New York |
| County | Dutchess |
| Nearest City | Swartoutville |
| River/Stream | Tr-sprout Creek |
| Coordinates | 41.61722, -73.80058 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 300 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 60 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF EAST FISHKILL |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 03/28/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY01169 |
| Federal ID | NY01169 |
| More Info | State Dam Safety Program |