York Lake Dam
York Lake Dam is an earth dam located in Berkshire County, Massachusetts, built in 1934. It carries a Significant hazard potential classification and has a poor condition assessment.
About York Lake Dam
The primary purpose of York Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ma Department Of Conservation & Recreation (state). It impounds the Sandy Brook near New Marlborough.
The dam stands 23 feet tall and stretches 700 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 487 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 10/28/2020.
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Location
| State | Massachusetts |
| County | Berkshire |
| Nearest City | New Marlborough |
| River/Stream | Sandy Brook |
| Coordinates | 42.09542, -73.18153 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Length | 700 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 487 acre-ft |
| Max Storage | 487 acre-ft |
| Normal Storage | 296 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/28/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00255 |
| Federal ID | MA00255 |
| More Info | State Dam Safety Program |