AG 2002 08 19 (Regular) - Laserfiche WebLink

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if the number of housing units increases by 33.07% (the rate fi:om 1990 to 2000), then 17,477 new housing units could be built within the County's permitting jurisdiction between 2002-2010. At a rate of.3%, 52 of these units could be expected to be built on properties within 100-year floodplains. 4. Applying the 2000 Census of Population and Housing average household size of 2.60 persons/unit to these 52 new residential units would indicate that 135 additional persons could be in harm's way during flooding if no changes are made in current housing development patterns within the County's permitting jurisdiction. Table B-6: Future Flood Vulnerability Current Residential Growth Patterns within County Permitting Jurisdiction Number of Residential Number of Residential Number ~f Persons Building Permits Building Permits in Exposed to Flood Hazard Floodplain 1993-2001 2002-2010 1993-2001 2002-2010 1993-2001 2002-2010 Projected Projected Estimated Projected Increase Increase 17,758 29,739 53 89 138 231 Source: Cabarrus County Planning and Zoning Services Department. 5. This type of increase in susceptibility to flooding cannot be allowed to occur. Future growth and development must be encouraged in areas of low vulnerability through modification and implementation of the various small area plans in effect throughout Cabarrus County. These plans encourage growth in areas currently equipped to handle increased density. Whenever possible these plans recommend open space and recreational uses as appropriate uses in flood prone areas. By consistently implementing existing and new land use policies and regulations as proposed in the hazard mitigation plan, future vulnerability will be reduced. Strict enforcement of mitigation measures such as adherence to the Flood Damage Prevention Ordinance and the Unified Development Ordinance (where applicable) must be utilized to decrease vulnerability to hazards. 6. The data shown in Tables B-5 and B-6 are derived fi:om calculations based on the assumption that prior trends in development will prevail. Current County ordinances have altered that trend and will significantly reduce these projected figures. Based on currently available information, future damage costs are estimated between 100,000 and 200,000 dollars. H. Redevelopment. Planning for redevelopment in the wake of a natural disaster also serves to reduce future vulnerability. Redevelopment should be encouraged in a manner which will result in lower vulnerability by restricting re-building within high-risk areas and requiring the use of mitigation measures in the rebuilt structures, such as higher finished floor elevations and flood-proofing. These measures are currently being regulated through Cabarrus County's Flood Prevention Ordinance. This document is enforced through resolution by the towns of Midland, Mount Pleasant, and Harrisburg. Draft Annex B V.3 B-5 1 June 2002