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Comprehensive Plan Future Land Use Element effective land use patterns that provide for separation and incorporate the use of buffers, Areas which contain incompatible uses are often older areas in transition from one use to another. Coastal High Hazard Area As implied by its title, the Coastal High Hazard Area (CHHA) is an area of increased risk to life and property due to hurricanes and/or severe storms. For that reason, certain land use- may not be appropriate within the CHHA. As defined in state law, the GR44A eetisistS of - the —entire —evaeuationzene for a eategery 1 hurfieane. The coastal hij4h- hazard area is the area below the elevation of the category I storm surge line as established by a Sea, Lake, and Overland Surges for Hurricanes (SLOSH) computerized storm surj4e model. The CHHA, is depicted in Figure 2.29-,4nc-ludes- the en ti re-barvier-island-as-iv� lis -{and -al ons-the�ves;-t-k�an�. �.�-d�nd r��erull. unincorporated land within the 0111 -IA is low density in character. In fact, there oral large tracts of land within the CIIHA that consist of environmentally sensitive estuarine �yetlands. In the unincorporated arca, those lands, located along both sides of the Indian Rives Lagoon, are designated C-2 on the future land use map. C-2 designated lands may be dcv doped at 1 unit/40 acres or used for a density transfer of 1 unit/acre to an upland site. Most of, the rest of the unincorporated land %vithin the CHHA consists of residential land with dcvelopment potential arui permitted densities ranging from 3 to 10 units/acre. A substantial portion of this land is currentlti dc'.,elopcd. I.7uch of that de,.-elopment tool: place 0 It time �� hen the C111vL\ more narrow l�� dcl-Mcd as lauid on the barrier island. east of, the Coastal Construction Control line. That relati�cly narrow strip of land consists mostly of dunes and sandy shoreline. In the unincorporated area, the CIIIA also contains a small portion of the commercially designated land in three areas. Those areas are within the 37th Street/US I Node (near Indian River Memorial Hospital), the Grand Harbor Node, and the CR 51 0/US 1 Node (in Wabasso). When determining the appropriate land use designations for land within the CHHA, the county must consider the following facts. • The appropriateness of the land use designations, including the land use designation's impact on hurricane evacuation, was considered prior to plan adoption in 1990. • Since plan adoption in 1990, the CHI IA has been expanded. 'the expansion of the CHHA, however, is based on a rule change. Other than hurricane evacuation Appendix A