Lake Warner Dam is a concrete dam located in Hampshire County, Massachusetts, built in 1918. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 82 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Lake Warner Dam
The primary purpose of Lake Warner Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Friends of Lake Warner & the Mill River, Inc. (private). It impounds the Mill River near Hadley.
The dam stands 17 feet tall and stretches 82 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 485 acre-feet, and collects water from a drainage area of 31 square miles. Completed in 1918, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/20/2017.
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Location
| State | Massachusetts |
| County | Hampshire |
| Nearest City | Hadley |
| River/Stream | Mill River |
| Coordinates | 42.38553, -72.58142 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 17 ft |
| Dam Length | 82 ft |
| Year Completed | 1918 (108 years old) |
Storage & Hydraulics
| NID Storage | 485 acre-ft |
| Max Storage | 485 acre-ft |
| Normal Storage | 205 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 31 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Friends of Lake Warner & the Mill River, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/20/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00062 |
| Federal ID | MA00062 |
| More Info | State Dam Safety Program |