Mill Pond South Dike
Mill Pond South Dike is an earth dam located in Middlesex County, Massachusetts, built in 1973. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Mill Pond South Dike
The primary purpose of Mill Pond South Dike 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 Town Of Burlington (local government). It impounds the Pumped Storage Reservoir From Shawsheen River near Burlington.
The dam stands 39 feet tall and stretches 400 feet across, creates a reservoir covering 53 acres, has a maximum storage capacity of 1,746 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.
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 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 08/31/2022.
At 39 feet, this dam is taller than 86% of dams nationwide.
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 | Middlesex |
| Nearest City | Burlington |
| River/Stream | Pumped Storage Reservoir From Shawsheen River |
| Coordinates | 42.50912, -71.17727 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Length | 400 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 1,746 acre-ft |
| Max Storage | 1,746 acre-ft |
| Normal Storage | 1,525 acre-ft |
| Surface Area | 53 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Burlington |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01123 |
| Federal ID | MA01121S002 |
| More Info | State Dam Safety Program |