The Arm Pond Dam
The Arm Pond Dam is an earth dam located in Plymouth County, Massachusetts, built in 1959. It carries a Low hazard potential classification.
About The Arm Pond Dam
The primary purpose of The Arm Pond Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Tidmarsh Farms, Inc. (private). It impounds the Tributary Of Beaver Dam Brook near Plymouth.
The dam stands 14 feet tall and stretches 200 feet across, has a maximum storage capacity of 87 acre-feet, and collects water from a drainage area of 4,000 square miles. Completed in 1959, 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.
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Location
| State | Massachusetts |
| County | Plymouth |
| Nearest City | Plymouth |
| River/Stream | Tributary Of Beaver Dam Brook |
| Coordinates | 41.90217, -70.56543 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 200 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 87 acre-ft |
| Max Storage | 87 acre-ft |
| Normal Storage | 22 acre-ft |
| Drainage Area | 4,000 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Tidmarsh Farms, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA01030 |
| Federal ID | MA01030 |
| More Info | State Dam Safety Program |