Bradford City No 3

Bradford City No 3 is an earth dam located in McKean County, Pennsylvania, built in 1898. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Bradford City No 3

The primary purpose of Bradford City No 3 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 Bradford City Water Authority (local government). It impounds the Marilla Brook.

The dam stands 47 feet tall and stretches 770 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 502 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1898, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/09/2020.

At 47 feet, this dam is taller than 92% 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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyMcKean
River/StreamMarilla Brook
Coordinates41.95333, -78.74000

Physical Characteristics

Dam TypeEarth
NID Height47 ft
Dam Height47 ft
Dam Length770 ft
Year Completed1898 (128 years old)

Storage & Hydraulics

NID Storage502 acre-ft
Max Storage502 acre-ft
Normal Storage368 acre-ft
Surface Area18 acres
Drainage Area4 sq mi

Ownership & Safety

PurposeWater Supply
OwnerBRADFORD CITY WATER AUTHORITY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection11/09/2020
Emergency Action PlanYes

Identifiers

NID IDPA00025
Federal IDPA00025
More InfoState Dam Safety Program

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