Lloydell

Lloydell is a gravity dam located in Cambria County, Pennsylvania, built in 1906. It carries a High hazard potential classification and has a fair condition assessment.

About Lloydell

The primary purpose of Lloydell is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Highland Sewer And Water Authority (local government). It impounds the S Fork Little Conemaugh River.

The dam stands 43 feet tall and stretches 700 feet across, creates a reservoir covering 42 acres, has a maximum storage capacity of 719 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1906, the structure is over a century old.

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 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 09/18/2020.

At 43 feet, this dam is taller than 89% of dams nationwide.

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 Pennsylvania 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 HazardFair ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyCambria
River/StreamS Fork Little Conemaugh River
Coordinates40.27278, -78.68417

Physical Characteristics

Dam TypeGravity
NID Height43 ft
Dam Height43 ft
Dam Length700 ft
Year Completed1906 (120 years old)

Storage & Hydraulics

NID Storage719 acre-ft
Max Storage719 acre-ft
Normal Storage635 acre-ft
Surface Area42 acres
Drainage Area8 sq mi

Ownership & Safety

PurposeWater Supply
OwnerHIGHLAND SEWER AND WATER AUTHORITY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/18/2020
Emergency Action PlanYes

Identifiers

NID IDPA00500
Federal IDPA00500
More InfoState Dam Safety Program

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