Three Mile River Dam
Three Mile River Dam is a concrete dam located in Bristol County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.
About Three Mile River Dam
The primary purpose of Three Mile River Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Pure Oasis Ventures Llc (private). It impounds the Three Mile River near Dighton.
The dam stands 13 feet tall and stretches 135 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 640 acre-feet, and collects water from a drainage area of 83 square miles.
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 11/15/2019.
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Location
| State | Massachusetts |
| County | Bristol |
| Nearest City | Dighton |
| River/Stream | Three Mile River |
| Coordinates | 41.86803, -71.12971 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Length | 135 ft |
Storage & Hydraulics
| NID Storage | 640 acre-ft |
| Max Storage | 640 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 83 sq mi |
| Max Discharge | 4,070 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Pure Oasis Ventures LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/15/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01170 |
| Federal ID | MA01170 |
| More Info | State Dam Safety Program |