Mammoth Lake

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyWestmoreland
River/StreamWETLEY RUN
Coordinates40.21278, -79.45833

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length1,100 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage342 acre-ft
Max Storage342 acre-ft
Normal Storage182 acre-ft
Surface Area27 acres
Drainage Area8 sq mi

Ownership & Safety

PurposeRecreation
OwnerWESTMORELAND COUNTY COMMISSIONERS
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection08/12/2019
Emergency Action PlanYes

Identifiers

NID IDPA00466
Federal IDPA00466
More InfoState Dam Safety Program

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