Wilbur Pond

Wilbur Pond is a gravity dam located in Providence County, Rhode Island, built in 1854. It carries a High hazard potential classification and has a poor condition assessment.

About Wilbur Pond

The primary purpose of Wilbur Pond is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tillinghast Holding Co. Llc (private). It impounds the Mary Brown Brook near Glocester.

The dam stands 12 feet tall and stretches 150 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1854, the structure is one of the older dams in the region, with over a century and a half of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Rhode Island dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateRhode Island
CountyProvidence
Nearest CityGlocester
River/StreamMary Brown Brook
Coordinates41.93022, -71.76443

Physical Characteristics

Dam TypeGravity
NID Height12 ft
Dam Height7 ft
Dam Length150 ft
Year Completed1854 (172 years old)

Storage & Hydraulics

NID Storage100 acre-ft
Max Storage100 acre-ft
Normal Storage56 acre-ft
Surface Area24 acres
Drainage Area1 sq mi
Max Discharge50 cfs

Ownership & Safety

PurposeRecreation
OwnerTILLINGHAST HOLDING CO. LLC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentPoor
Emergency Action PlanYes

Identifiers

NID IDRI00313
Federal IDRI00313
More InfoState Dam Safety Program

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