Birch Pond Dam
Birch Pond Dam is an earth dam located in Essex County, Massachusetts, built in 1873. It carries a High hazard potential classification and has a fair condition assessment.
About Birch Pond Dam
The primary purpose of Birch Pond Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Lynn Water And Sewer Commission (local government). It impounds the Saugus River near Lynn.
The dam stands 25 feet tall and stretches 810 feet across, creates a reservoir covering 75 acres, has a maximum storage capacity of 1,300 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1873, the structure is one of the older dams in the region, with over a century and a half of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/11/2022.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Massachusetts dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Massachusetts |
| County | Essex |
| Nearest City | Lynn |
| River/Stream | Saugus River |
| Coordinates | 42.47467, -70.99200 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Length | 810 ft |
| Year Completed | 1873 (153 years old) |
Storage & Hydraulics
| NID Storage | 1,300 acre-ft |
| Max Storage | 1,300 acre-ft |
| Normal Storage | 800 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 210 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Lynn Water and Sewer Commission |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/11/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00237 |
| Federal ID | MA00237 |
| More Info | State Dam Safety Program |