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area between the parallel ridges, as well as those that discharge into the St. <br />John's River, are subject to flooding from prolonged heavy rainfalls. <br />Low, swampy, inland areas are subject to flooding during wet periods and <br />coastal areas of the county are subject to storm surge flooding resulting from <br />hurricane or tropical storm activity. Areas along the Indian River Lagoon may <br />also experience flooding from storm surge caused by hurricane winds piling <br />water against shorelines, causeways and bridges. A diagram of FEMA flood <br />zones for Indian River County is attached to this document and identified as <br />Figure 3. <br />Indian River County Comprehensive Emergency Management Plan Basic Page 86 <br />