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Flooding from Tropical Storm Lee in Columbia County, Pennsylvania

Jennifer Jean Haney, Environmental, Geographical, and Geological Sciences, Bloomsburg University of Pennsylvania

Summary

In September 2011, the remnants of Tropical Storm Lee dumped significant amounts of rain over nearly all of central and eastern Pennsylvania resulting in some of the worst flooding in the region's history. The most severe flooding affected municipalities along the Susquehanna River including Bloomsburg, Danville, Wilkes-Barre, Sunbury, and Harrisburg. President Obama issued a major disaster declaration for the state of Pennsylvania on September 12, and it is estimated that over $1 billion dollars in losses resulted from the impacts of Tropical Storm Lee.

Columbia County, located in eastern Pennsylvania, has a population of approximately 67,000 people. The town of Bloomsburg, the county seat, experiences major flooding in areas along the Susquehanna River (south), Fishing Creek (north and west), and at the confluence of the Susquehanna River and Fishing Creek. The Susquehanna River in Bloomsburg crested at over 32.75 feet making Tropical Storm Lee the highest flood on record. A Geographic Information Systems analysis estimated that 2,400 structures may have been damaged by flood waters.

This case study discusses the vulnerability of Columbia County, Pennsylvania to flood hazards and identifies opportunities for increasing disaster resilience. It also discusses the social and economic impacts of flooding from Tropical Storm Lee, county and local municipalities' responses to the flooding from Tropical Storm Lee, lessons learned, and implications for strengthening emergency preparedness and existing flood hazard mitigation measures.

Individuals with expertise/responsibilities in the following areas have helped create the case study:

Key teaching points:

How this example is used in the classroom:
This example is used in an upper-level Environmental Risks and Hazards course to supplement discussion on emergency preparedness and response and hazards mitigation.

References

Supporting Files

Flood Inundation Map (Acrobat (PDF) 1MB Apr11 14)

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