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16. MCKM&CREED near the mouth of the St. Johns River. Project supported the construction upgrades of an existing degaussing range. USACE Jacksonville District, Site Z Impoundment Levee As-builts, Palm Beach County, FL: Mr. Tracz was the field supervisor and crew chief for the ongoing survey services including as -built surveys at multiple levels of levee construction. Services also included rapid response hydrographic surveys after the failure of a major retaining wall. USACE Jacksonville District, Fernandina Beach Hydrographic/Topographic Survey, Nassau County, FL: Mr. Tracz was the hydrographic crew chief for the survey of beach profile lines that extended 3,000 feet from the landward limits of the beach into the Atlantic Ocean. RTK GPS was utilized for horizontal and vertical positioning of the survey vessel and a motion reference unit was utilized to correct for heave, pitch, and roll. SWFWMD, Lake Panasoffkee Bathymetric Mapping Project, Sumter County, FL: Mr. Tracz was the hydrographic surveyor for the survey of this 3,200 -acre lake and surrounding creeks. The lake's shallow depth and extreme amounts of vegetation made conventional processing methods impossible. Each survey line was analyzed individually and manually digitized. SWFWMD, Lake Lowery Hydrographic and Topographic Data Collection and Minimum Flows and Levels, Polk County, FL: Mr. Tracz processed/analyzed hydrographic data for the complete hydrographic survey of this lake near Haines City. Dense vegetation and sediment on the lake bottom required the use of conventional soundings to carefully calibrate and digitize the sonar data. A combination of electronic and manual depth measurements were used to produce the survey. USACE Jacksonville District, U.S. Coast Guard River Channel Surveys, Dixie, Taylor, levy, & Citrus Counties, FL: As the hydrographic crew chief for the single - beam hydrographic surveys, Mr. Tracz performed surveys of six river channels: Steinhatchee River, Withlacoochee River, Homosassa River, Cedar Keys Harbor, Crystal River, and Keaton Beach. Channel centerlines and edges were surveyed with a dual frequency transducer. The length of lines surveyed totaled approximately 80 miles. JEA (formerly Jacksonville Electric Authority), Total Water Management flan, Duval County. FL: Mr. Tracz was the field supervisor and crew chief on hydrographic portions (Segment 2) of this project, which supported the design -build of a new eight -mile water line. Segment 2 involved the installation of 6,200 feet of 36 - inch pipe—by directional drill—under the St. Johns River, south of the Mathews Bridge. USACE Jacksonville District, Milepoint Hydrographic/Topographic Survey, Duval County, FL: Mr. Tracz was the hydrographic crew chief for this hydrographic/topographic survey of the Milepoint area at the confluence of the St. Johns River and the Intracoastal Waterway. www.mckirricreed.com