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bowmanconsulting.com Whidden Surveying & Mapping, Inc. (WSM) was assigned this task as part of the Indefi- nite Delivery Contract with the US Army Corps of Engineers. The survey tasks required obtaining topographic and hydrographic survey data for the Brevard County beach and borrow areas for approximately 140 profiles. The first part of this survey required data to be collected to provide beach profiles. Profile lines were extended 150-feet landward and extended seaward from the most landward offshore data point a distance of no less than 3,000 feet. Spot elevations were collected on 10-foot rang- es with all breaks in grade greater than 1-foot vertically, and recorded for all monuments recovered in good condition. Soundings were performed at 12.5-foot ranges along the profile. RTK was utilized for horizontal and vertical positioning of all hydrographic data acquisition. All data was collected during acceptable sea conditions. Structures along each survey profile were located along with above ground utility indicators. Vehicular access points to the beach were noted. Motion sensing compensation (Heave, Pitch, Roll) was used for all data acquired with a Teledyne (DMS 10). Barchecks were completed at the beginning and end of every field day. The second part of the survey collected sounding data for the borrow areas. Single beam bathymetry was used. Survey lines were spaced 100 feet apart and oriented shore perpen- dicular with three shore parallel cross-tie lines spanning the entire length of the survey area. Soundings were collected a minimum of 300 feet beyond the boundary of the bor- row areas with a maximum distance of 12.5 feet between soundings on each line. All surveying and mapping products waere in compliance with requirements of the State of Florida, Department of Environmental Pro- tection, and Bureau of Beaches and Coastal Systems. Positions were referenced to NAD 1983, State Plane Florida East, and US Survey Feet. Elevations were referenced to NAVD 1988. For all Real Time Kinematic surveys, the base station only occupied NGS monuments. WSM provided weekly progress reports containing information on daily site work, manpower scheduling and all required final delivera- bles in the required formats including ASCII files, metadata, field books, GPS network plans, Quality control report, and survey reports (digital and hard copy). Brevard County Topographic and Hydrographic Survey Brevard County, Florida Tab 2 Specific Experience Client US Army Corps of Engineers Jacksonville District Clay McCoy, PhD p: (904) 232-3657 Contract Dates 2013 Fee $124,000 Page 22