Harmar Storage Pond No 4

Harmar Storage Pond No 4 is an earth dam located in Allegheny County, Pennsylvania, built in 1980. It carries a Low hazard potential classification and has a satisfactory condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionSatisfactoryBest of 4 ratings
Emergency action planNot reported
Last inspection05/30/2019
Height39 ft
Built198046 years ago

Dam profile

NID height · 39 ft
39 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

39 ft tall and 350 ft long, taller than 85% of U.S. dams with a recorded height. 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 Harmar Storage Pond No 4

Harmar Storage Pond No 4 is a dam in Allegheny, Pennsylvania. The dam is owned by Ip Harmar Holdings LLC (private). It impounds the Tr Guys Run.

The dam stands 39 feet tall and stretches 350 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1980, the structure is 46 years old.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/30/2019.

At 39 feet, this dam is taller than 85% of dams nationwide.

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Location

StatePennsylvania
CountyAllegheny
River/StreamTr Guys Run
Coordinates40.53556, -79.84750

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height39 ft
Dam Length350 ft
Year Completed1980 (46 years old)

Storage & Hydraulics

NID Storage54 acre-ft
Max Storage54 acre-ft
Normal Storage32 acre-ft
Surface Area1 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeOther
OwnerIp Harmar Holdings LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/30/2019
Emergency Action PlanNot Required

Identifiers

NID IDPA01203
Federal IDPA01203
More InfoState Dam Safety Program