Osborne Lagoon

Osborne Lagoon is an earth dam located in Chester County, Pennsylvania, built in 2012. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Osborne Lagoon

Osborne Lagoon is a dam in Chester, Pennsylvania. The dam is owned by Oxford Area Sewer Authority (local government). It impounds the Wtrshd Leech Run.

The dam stands 50 feet tall and stretches 2,218 feet across, has a maximum storage capacity of 118 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2012, the structure is relatively new.

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 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 12/03/2014. That was over 11 years ago.

At 50 feet, this dam is taller than 93% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyChester
River/StreamWtrshd Leech Run
Coordinates39.80444, -75.99167

Physical Characteristics

Dam TypeEarth
NID Height50 ft
Dam Height50 ft
Dam Length2,218 ft
Year Completed2012 (14 years old)

Storage & Hydraulics

NID Storage118 acre-ft
Max Storage118 acre-ft
Drainage Area0 sq mi

Ownership & Safety

PurposeOther
OwnerOXFORD AREA SEWER AUTHORITY
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection12/03/2014
Emergency Action PlanYes

Identifiers

NID IDPA01904
Federal IDPA01904
More InfoState Dam Safety Program

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