Red Brook Road Dam

Red Brook Road Dam is an earth dam located in Barnstable County, Massachusetts, built in 1930. It carries a Significant hazard potential classification and has a poor condition assessment.

About Red Brook Road Dam

The primary purpose of Red Brook Road Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Falmouth;town Of Mashpee (local government). It impounds the Red Brook near Falmouth; Mashpee.

The dam stands 8 feet tall, creates a reservoir covering 6 acres, has a maximum storage capacity of 19 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 03/30/2022.

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Significant HazardPoor ConditionEmergency Action Plan: No

Location

StateMassachusetts
CountyBarnstable
Nearest CityFalmouth; Mashpee
River/StreamRed Brook
Coordinates41.58330, -70.50370

Physical Characteristics

Dam TypeEarth
NID Height8 ft
Year Completed1930 (96 years old)

Storage & Hydraulics

NID Storage19 acre-ft
Max Storage19 acre-ft
Normal Storage15 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge218 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTown of Falmouth;Town of Mashpee
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection03/30/2022
Emergency Action PlanNo

Identifiers

NID IDMA01037
Federal IDMA01037
More InfoState Dam Safety Program

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