Flood Zones in Wake County Georgia Ditmore University of North Carolina at Chapel Hill December 1, 2014.

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Presentation transcript:

Flood Zones in Wake County Georgia Ditmore University of North Carolina at Chapel Hill December 1, 2014

Wake County, North Carolina

Objective Analyze the factors that affect the extent of the flood impact area and consider how Wake County growth will change those factors. Proximity to water bodies Land Cover Impervious Surface

North Raleigh Flooding

North Carolina Population Change

NC Flood Maps Hurricane Floyd Community Regulation Source:

Data NC Flood Map Flood Zones Raleigh Building Footprints USA NHDPlusV2 Streams NLCD Land Cover NLCD Impervious Surfaces

Neuse River Watershed Wake County

Floodplain

Water Bodies

Land Cover

Impervious Surfaces

Conclusion Moving forward flood zones should be compared temporally to consider changes in land cover and impervious surfaces A slight increase in the flood zone area would jeopardize a substantial number of properties within the county Hydrologic analysis for flood mapping can include many factors

Works Cited shed/pdfs/imperv.pdf es.htm hematic_maps.html