Mill Pond North Dike is an earth dam located in Middlesex County, Massachusetts, built in 1973. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 40 ft40 ft tall and 370 ft long, taller than 86% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Mill Pond North Dike
The primary purpose of Mill Pond North 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 40 feet tall and stretches 370 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 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 08/31/2022.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Burlington |
| River/Stream | Pumped Storage Reservoir From Shawsheen River |
| Coordinates | 42.51180, -71.17907 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Length | 370 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 | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01122 |
| Federal ID | MA01121S001 |
| More Info | State Dam Safety Program |