Sidwell Lake Dam
Sidwell Lake Dam is an earth dam located in Sullivan County, New York. It carries a Significant hazard potential classification and has a poor condition assessment.
About Sidwell Lake Dam
The primary purpose of Sidwell Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Steges Road Development Llc (private). It impounds the Halfway Brook near Eldred.
The dam stands 11 feet tall and stretches 220 feet across, creates a reservoir covering 82 acres, and has a maximum storage capacity of 870 acre-feet.
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. The most recent inspection on record was 08/10/2023.
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Location
| State | New York |
| County | Sullivan |
| Nearest City | Eldred |
| River/Stream | Halfway Brook |
| Coordinates | 41.53750, -74.87417 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 220 ft |
Storage & Hydraulics
| NID Storage | 870 acre-ft |
| Max Storage | 870 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 82 acres |
| Max Discharge | 850 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Steges Road Development LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 08/10/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY01215 |
| Federal ID | NY01215 |
| More Info | State Dam Safety Program |