Middle Reservoir Dike
Middle Reservoir Dike is an earth dam located in Middlesex County, Massachusetts, built in 1891. It carries a Significant hazard potential classification and has a fair condition assessment.
About Middle Reservoir Dike
The primary purpose of Middle Reservoir 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 Winchester (local government). It impounds the Tributary Of Mystic River near Medford.
The dam stands 15 feet tall and stretches 340 feet across, creates a reservoir covering 52 acres, has a maximum storage capacity of 2,720 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1891, the structure is over a century 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 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 08/05/2019.
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 | Medford |
| River/Stream | Tributary Of Mystic River |
| Coordinates | 42.45083, -71.11606 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 340 ft |
| Year Completed | 1891 (135 years old) |
Storage & Hydraulics
| NID Storage | 2,720 acre-ft |
| Max Storage | 2,720 acre-ft |
| Normal Storage | 1,790 acre-ft |
| Surface Area | 52 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Winchester |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/05/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01086 |
| Federal ID | MA01086 |
| More Info | State Dam Safety Program |