Orrs Pond Dam
Orrs Pond Dam is an earth dam located in Bristol County, Massachusetts, built in 1906. It carries a Low hazard potential classification and has a fair condition assessment.
About Orrs Pond Dam
The primary purpose of Orrs Pond Dam 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 City Of Attleboro (local government). It impounds the Seven Mile River near Attleboro.
The dam stands 18 feet tall and stretches 125 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 250 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1906, the structure is over a century 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 01/05/2015. That was over 11 years ago.
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Location
| State | Massachusetts |
| County | Bristol |
| Nearest City | Attleboro |
| River/Stream | Seven Mile River |
| Coordinates | 41.92732, -71.34057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Length | 125 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 180 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Attleboro |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 01/05/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA01169 |
| Federal ID | MA01169 |
| More Info | State Dam Safety Program |