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5/5/1998
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5/5/1998
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7/23/2015 12:10:57 PM
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Meetings
Meeting Type
Regular Meeting
Document Type
Minutes
Meeting Date
05/05/1998
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L �$ � <br />III. PHYSICAL CONDITIONS <br />As a basis for updating the BPP shoreline and volumetric changes were <br />evaluated for the entire County to determine the condition of the beaches. These <br />changes were calculated using FDEP hydrographic survey data between 1986 <br />and 1997. Survey information was collected every 1,000 ft. corresponding to <br />each of the R -monuments and extends 3,OOOft. offshore. The coastline was <br />divided into eight areas for evaluation and each area corresponds to one of the <br />planning Sectors outlined above. In considering the shoreline and volumetric <br />change trends within individual Sectors, it was necessary to divide a number of <br />Sectors into Sub -Sectors. These Sub -Sectors will be used to better identify <br />erosion and accretion tendencies along the coastline. <br />A. Dune & Shoreline Changer <br />Dune and shoreline changes are shown at three elevations; 0.0, 5.0, and <br />10.0 feet NGVD (Table No.2). The lower elevations are representative of the <br />changes which occur near the waterline and the higher elevations are <br />representative of the changes near the dry beach and dune. Figures No.4 <br />through 6 illustrate the shoreline changes during the period between June 1986 <br />and May 1997. A detailed analysis of shoreline change for each R -monument <br />can be found in Appendix A. <br />Table No.2: Shoreline Changes (Jun86-May97). <br />Note: 1. NegeGve (-) MMVM indrcates shmeirm re"Weroeron. <br />2. Shaded area irndicates fnatlter evakuWon B necessary to determine the true shorebrc change in Cris Sector. <br />A short discussion follows offering an explanation of the shoreline changes <br />in each of the planning Sectors. In. addition to shoreline changes, volumetric <br />changes are also presented in the subsequent section. <br />MAY 59 1998 <br />Shoreline Change ft./ r. <br />Sector No. <br />Monument <br />0' NGVD <br />5' NGVD 10' NGVD <br />1 - Sebastian Inlet <br />R1 -R11 <br />2.3 <br />2.1 <br />2.0 <br />2-Ambersand <br />R11 -R19 <br />-0.5 <br />-1.7 <br />0.4 <br />3 - Wabasso Beach <br />R19 -R45 <br />-2.5 <br />-3.2 <br />-0.3 <br />4 - Indian River Shores <br />R45 -R71 <br />4a <br />R45- R53 <br />-2.1 <br />-3.5 <br />-0.1 <br />4b <br />R53 -R71 <br />5.1 <br />2.9 <br />2.9 <br />5 - Vero Bead I <br />R71 -R86 <br />5a <br />R71 -R77 <br />2.8 <br />1.9 <br />1.2 <br />5b <br />R77 -R86 <br />-1.6 <br />-2.3 <br />-0.5 <br />6 - Vero Beach II <br />R86 -R94 <br />5.3 <br />4.8 <br />4.5 <br />7 - South County <br />R94 -R113 <br />7a <br />R94 -R100 <br />4.7 <br />4.3 <br />6.0 <br />7b <br />R100 -R107 <br />-4.8 <br />-0.8 <br />-2.4 <br />7c <br />R107 -R113 <br />5.2 <br />5.5 <br />3.8 <br />8 - Round Island <br />R113 -R119 <br />2.7 <br />2.0 <br />2.3 <br />Note: 1. NegeGve (-) MMVM indrcates shmeirm re"Weroeron. <br />2. Shaded area irndicates fnatlter evakuWon B necessary to determine the true shorebrc change in Cris Sector. <br />A short discussion follows offering an explanation of the shoreline changes <br />in each of the planning Sectors. In. addition to shoreline changes, volumetric <br />changes are also presented in the subsequent section. <br />MAY 59 1998 <br />
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