Warren Upper Reservoir Dam

Warren Upper Reservoir Dam is an earth dam located in Bristol County, Massachusetts, built in 1838. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

Hazard potentialSignificantFailure could cause major damage
ConditionSatisfactoryBest of 4 ratings
Emergency action planOn file
Last inspection08/11/2020
Height19 ft
Built1838188 years ago

Dam profile

NID height · 19 ft
19 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

19 ft tall and 725 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Warren Upper Reservoir Dam

The primary purpose of Warren 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 Anawan Club (private). It impounds the Bad Luck Brook near Rehoboth.

The dam stands 19 feet tall and stretches 725 feet across, creates a reservoir covering 126 acres, has a maximum storage capacity of 950 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1838, the structure is one of the older dams in the region, with over a century and a half of service.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/11/2020.

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Location

StateMassachusetts
CountyBristol
Nearest CityRehoboth
River/StreamBad Luck Brook
Coordinates41.83012, -71.22370

Physical Characteristics

Dam TypeEarth
NID Height19 ft
Dam Length725 ft
Year Completed1838 (188 years old)

Storage & Hydraulics

NID Storage950 acre-ft
Max Storage950 acre-ft
Normal Storage690 acre-ft
Surface Area126 acres
Drainage Area3 sq mi
Max Discharge1,453 cfs
Spillway TypeControlled

Ownership & Safety

PurposeWater Supply
OwnerAnawan Club
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection08/11/2020
Emergency Action PlanYes

Identifiers

NID IDMA00794
Federal IDMA00794
More InfoState Dam Safety Program