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D. Approach and Methodology It is our understanding that the City of Sunny Isles Beach is in need of a Professional Surveying firm to complete surveys along its shoreline that meet the requirements of the Florida department of Environmental Protection, Bureau of Beach and Coastal Systems “Monitoring Standards for Beach Erosion Control”. And have knowledge and expertise with the FEMA Disaster Assistance Fact Sheet DAP9580.8. While these standards and directives are specific in their desired deliverables and outcomes, surveying in a surf zone requires a specific set of skills and equipment to safely and accurately complete the work. Approach A. We will meet with the City and Miami‐Dade County to coordinate the work effort so as to optimize the benefit to the City by minimizing the duplication of services. B. We will contact Law Enforcement and Public Safety agencies to coordinate access to the beach and nearshore waters so as to protect the safety of the public. C. As required we will utilize National Geodetic Survey (NGS) 2nd order or higher horizontal and vertical control points for establish coordinates and elevations for the survey. More than likely when using RTK/GPS our base station will directly occupy an NGS Vertical Control Monument. From research completed in preparation for this submittal it appears that all NGS control monuments within the city have been destroyed, more than likely due to construction. We will be able to use control that we have previously set at Haulover Park that meets the required standard to complete the surveys. D. The horizontal datum will be established on NAD 83(90) State Plane Coordinate System, Florida East Zone. The vertical datum will be NAVD 88. E. We propose to use Real Time Kinematic (RTK) GPS for vertical and horizontal positioning for both the topographic and hydrographic portions of the job. In some cases when circumstances dictate (such as tall building that block GPS signals), A robotic total station will be used. F. Prior to commencement of work and at the end of the work day the topographic and hydrographic survey crews will verify the accuracy of their respective GPS equipment against a known control point. The horizontal and vertical control point used will be verified with other control points in the area.