Woonsocket Falls Dam - Dikes 1 and 2 is a dam located in Providence County, Rhode Island, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 1,040 ft long. 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 Woonsocket Falls Dam - Dikes 1 and 2
The primary purpose of Woonsocket Falls Dam - Dikes 1 and 2 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 USACE - New England District (federal). It impounds the Blackstone near Woonsocket.
The dam stands 9 feet tall and stretches 1,040 feet across, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 369 square miles. Completed in 1960, the structure is well into its service life at over 50 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/27/2022.
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Location
| State | Rhode Island |
| County | Providence |
| Nearest City | Woonsocket |
| River/Stream | Blackstone |
| Coordinates | 42.01013, -71.52914 |
Physical Characteristics
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Drainage Area | 369 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - New England District |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/27/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | RI03902 |
| Federal ID | RI03902S001 |
| More Info | State Dam Safety Program |