F.5. Analysis of Volume Changes From 1951 To 1997 



This section summarizes the location and analysis of available beach-profile survey data 

 north and south of Canaveral Harbor in Brevard County, Florida. Comparisons are made 

 between plaintiffs' claims of volume losses and estimates of volume losses based on survey data. 



F.5.1. Survey Datum 



Beach-profile survey data for Brevard County, Florida, have been acquired both by the 

 Florida Department of Environmental Protection (FDEP) and by the USACE. The FDEP survey 

 data are collected for the State's Coastal Construction Control Line (CCCL), erosion control, and 

 inlet management programs. The USACE has acquired beach-profile surveys for the purposes of 

 navigation, beach-erosion control, and shore protection. From March to June 1965, the USACE 

 conducted a countywide beach-profile survey of Brevard County. The USACE Beach Profile 

 Lines 1-17 are located north of the inlet. Profile Lines 18 to 48 are located from the south jetty to 

 just south of Sebastian Inlet. The FDEP survey data are referenced to R-l, R-2, etc. The 

 USACE and FDEP profile locations are shown in Figure 2-1 of the main text. 



The FDEP survey data are referenced to the 1929 National Geodetic Vertical Datum 

 (NGVD 29). All survey data acquired by the USACE (Jacksonville District) for Canaveral 

 Harbor and Brevard County are referenced to a construction datum (mean low water (MLW)) 

 which is -1.9 ft below NGVD 29. The National Ocean Service (NOS) datum in the main text of 

 this report is based upon a specific tidal epoch. Therefore, NOS datums are subject to change 

 throughout time. The USACE has adopted the -1.9-ft offset to define an invariant construction 

 datum. The survey data and analysis described in this appendix are referenced to NGVD 29. 



F. 5.2. Canaveral Harbor Monitoring Surveys 



Numerous hydrographic surveys of the Harbor channel, turning basins, and adjacent areas 

 have been performed over the years as part of the operation and maintenance (O&M) of the 

 Harbor. The purpose of these hydrographic surveys is to monitor shoaling in the entrance 

 channel, inner channel, access channels and turning basins, and determine pre-dredging and post- 

 dredging conditions. The O&M hydrographic surveys are generally limited in scope to the 

 Harbor project dimensions and cannot be used to determine changes to the adjacent beaches. 



The USACE established monitoring surveys as part of the Canaveral Harbor project. The 

 Jacksonville District Office (D.O.) File Numbers for beach-profile surveys for the Harbor project 

 are listed in Table F-3. The first survey was performed from September to October 1951, prior to 

 the pilot cut through the Barrier Island. The 1951 survey extended 10,500 ft north and south of 

 the Harbor. These distances are referred to as Station 105+00N and 105+00S, respectively. The 

 stationing for the October 1951, survey is shown on Plate F- 1 . Monitoring surveys were taken in 



F-18 



Appendix F Brevard County Federal Projects and Surveys 



