Willow Street Bypass Dam
Willow Street Bypass Dam is a stone dam located in Norfolk County, Massachusetts. It carries a Low hazard potential classification and has a poor condition assessment.
About Willow Street Bypass Dam
The primary purpose of Willow Street Bypass Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Ma Department Of Conservation & Recreation (state). It impounds the Charles River near Dover.
The dam stands 12 feet tall and stretches 50 feet across, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 4 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 03/07/2017.
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Location
| State | Massachusetts |
| County | Norfolk |
| Nearest City | Dover |
| River/Stream | Charles River |
| Coordinates | 42.25771, -71.26363 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 12 ft |
| Dam Length | 50 ft |
Storage & Hydraulics
| NID Storage | 700 acre-ft |
| Max Storage | 700 acre-ft |
| Drainage Area | 4 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 03/07/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA03110 |
| Federal ID | MA03110 |
| More Info | State Dam Safety Program |