Happy Hollow Pond is a masonry dam located in Providence County, Rhode Island, built in 1885. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 130 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Happy Hollow Pond
The primary purpose of Happy Hollow Pond 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 Pawtucket Water Supply Board (local government). It impounds the Abbott Run near Central Falls.
The dam stands 19 feet tall and stretches 130 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 360 acre-feet, and collects water from a drainage area of 28 square miles. Completed in 1885, 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.
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Location
| State | Rhode Island |
| County | Providence |
| Nearest City | Central Falls |
| River/Stream | Abbott Run |
| Coordinates | 41.90099, -71.38553 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 19 ft |
| Dam Height | 15 ft |
| Dam Length | 130 ft |
| Year Completed | 1885 (141 years old) |
Storage & Hydraulics
| NID Storage | 360 acre-ft |
| Max Storage | 360 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 2,000 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Pawtucket Water Supply Board |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | RI00806 |
| Federal ID | RI00806 |
| More Info | State Dam Safety Program |