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4 | P a g e <br />RFQ #16-06-01 Shoreline Surveying & Mapping Consulting Services <br />References <br /> <br />Client Sebastian Inlet District <br />Contact Name Marty Smithson <br />Phone Number 321-543-2005 <br />Email msmithson@sitd.us <br /> <br />Description of Project: <br /> <br />Land & Sea Surveying has provided surveying support for Sebastian Inlet District since 2004. As part of the <br />inlet management planning, Land & Sea Surveying completes a survey of the inlet biannually. The goal of <br />this project is to examine long-term trends and shorter-term variability of the beach, shoreface and overall <br />sand budget of Sebastian Inlet. The database is used to assemble, shoreline change data, volumetric data <br />and morphologic data that is used in calculations and predictive models to quantify the littoral sand budget <br />and predict the potential for impacts during severe storms. The database drives models to simulate the <br />potential for morphologic changes in the barrier island shoreface and tidal inlet shoals. <br /> <br />The survey is performed using a combination of methods and equipment: a singlebeam 200 kHz transducer <br />with RTK GPS positioning, a multibeam system with a POS-MV motion reference unit, RTK GPS land <br />surveying systems and conventional totalstations. Cross-sections are performed every 200 feet from the <br />inlet mouth into the Intracoastal Waterway 100 feet to the north and south of the inlet. Beach profiles are <br />surveyed using an RTK GPS and/or conventional totalstation starting at the top of dune and continuing <br />offshore to a depth of 40 feet with the singlebeam and multibeam systems. Beach profiles are collected at <br />every R-monument, approximately every 1,000 feet. The first 17,000 feet on the south side of the inlet is