Plow Shop Pond Dam
Plow Shop Pond Dam is an earth dam located in Middlesex County, Massachusetts, built in 1856. It carries a Low hazard potential classification and has a poor condition assessment.
About Plow Shop Pond Dam
The primary purpose of Plow Shop Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ctc Holdings, Inc. (private). It impounds the Nonacoicus Brook near Ayer.
The dam stands 7 feet tall and stretches 170 feet across, creates a reservoir covering 28 acres, has a maximum storage capacity of 270 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1856, the structure is one of the older dams in the region, with over a century and a half of service.
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 04/24/2017.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Ayer |
| River/Stream | Nonacoicus Brook |
| Coordinates | 42.55742, -71.59486 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Length | 170 ft |
| Year Completed | 1856 (170 years old) |
Storage & Hydraulics
| NID Storage | 270 acre-ft |
| Max Storage | 270 acre-ft |
| Normal Storage | 153 acre-ft |
| Surface Area | 28 acres |
| Drainage Area | 15 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | CTC Holdings, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/24/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA01184 |
| Federal ID | MA01184 |
| More Info | State Dam Safety Program |