Tihonet Pond No. 1 Dam

Tihonet Pond No. 1 Dam is an earth dam located in Plymouth County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.

About Tihonet Pond No. 1 Dam

The primary purpose of Tihonet Pond No. 1 Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by A.d. Makepeace Company (private). It impounds the Wankinco River near Wareham.

The dam stands 16 feet tall and stretches 350 feet across, creates a reservoir covering 96 acres, has a maximum storage capacity of 980 acre-feet, and collects water from a drainage area of 5 square miles.

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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/25/2022.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyPlymouth
Nearest CityWareham
River/StreamWankinco River
Coordinates41.78905, -70.71251

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Length350 ft

Storage & Hydraulics

NID Storage980 acre-ft
Max Storage980 acre-ft
Normal Storage720 acre-ft
Surface Area96 acres
Drainage Area5 sq mi
Max Discharge135 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerA.D. Makepeace Company
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection04/25/2022
Emergency Action PlanYes

Identifiers

NID IDMA00029
Federal IDMA00029
More InfoState Dam Safety Program

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