Warner's Pond Dam
Warner's Pond Dam is an earth dam located in Middlesex County, Massachusetts, built in 1857. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Warner's Pond Dam
The primary purpose of Warner's Pond 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 Concord (local government). It impounds the Fort Pond Brook near Concord.
The dam stands 9 feet tall and stretches 332 feet across, creates a reservoir covering 57 acres, has a maximum storage capacity of 440 acre-feet, and collects water from a drainage area of 46 square miles. Completed in 1857, the structure is one of the older dams in the region, with over a century and a half 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 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 06/09/2023.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Concord |
| River/Stream | Fort Pond Brook |
| Coordinates | 42.45880, -71.39777 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Length | 332 ft |
| Year Completed | 1857 (169 years old) |
Storage & Hydraulics
| NID Storage | 440 acre-ft |
| Max Storage | 440 acre-ft |
| Normal Storage | 93 acre-ft |
| Surface Area | 57 acres |
| Drainage Area | 46 sq mi |
| Max Discharge | 1,115 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Concord |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/09/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00440 |
| Federal ID | MA00440 |
| More Info | State Dam Safety Program |