Upper Reservoir Dam
Upper Reservoir Dam is an earth dam located in Barnstable County, Massachusetts, built in 1900. It carries a Low hazard potential classification and has a fair condition assessment.
About Upper Reservoir Dam
The primary purpose of Upper Reservoir 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 Ma Department Of Conservation & Recreation (state).
The dam stands 7 feet tall, creates a reservoir covering 2 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1900, 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 04/05/2017.
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Location
| State | Massachusetts |
| County | Barnstable |
| Nearest City | Sandwich |
| Coordinates | 41.74446, -70.46055 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 13 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/05/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA02556 |
| Federal ID | MA02556 |
| More Info | State Dam Safety Program |