Pawtucket Upper

Pawtucket Upper is a concrete dam located in Providence County, Rhode Island, built in 1800. It carries a Low hazard potential classification and has a poor condition assessment.

About Pawtucket Upper

Pawtucket Upper is a dam in Providence, Rhode Island. The dam is owned by Narragansett Electric Company (private). It impounds the Blackstone River near Pawtucket.

The dam stands 15 feet tall and stretches 200 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 474 square miles. Completed in 1800, 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.

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Low HazardPoor ConditionEmergency Action Plan: No

Location

StateRhode Island
CountyProvidence
Nearest CityPawtucket
River/StreamBlackstone River
Coordinates41.87714, -71.38221

Physical Characteristics

Dam TypeConcrete
NID Height15 ft
Dam Height15 ft
Dam Length200 ft
Year Completed1800 (226 years old)

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage45 acre-ft
Surface Area11 acres
Drainage Area474 sq mi
Max Discharge20,700 cfs

Ownership & Safety

OwnerNARRAGANSETT ELECTRIC COMPANY
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Emergency Action PlanNo

Identifiers

NID IDRI04270
Federal IDRI04270
More InfoState Dam Safety Program

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