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California Spatial Reference Center <br />FEDERAL: <br />U.S. Forest Service <br />National Geodetic Survey <br />U.S. Army Corps of Engineers <br />U.S. Geological Survey <br />U.S. Navy <br />U.S. Air Force <br />51 50 E. Hunter Are. 6 Anaheim, CA 92807 <br />(714) 777-8877 alanfrank@johnson-frank.com~ FAX; (714) 777-1 641 <br />Johnson-Frank & Associates. Inc. <br />On-Call Aerial Mapping & Surveying Services <br />City of Santa Ana <br />WORK PLAN <br />The technical approach follows our production work flow, and is intended to give the reader <br />a sound <br />understanding of the process we will follow to produce the desired deliverables. While we <br />Will <br />outline our approach to producing all of the deliverables asked for in the RFP, it is <br />understood that <br />the City ultimately may not need all of the products and services discussed. <br />Ground Control Surveys <br />This task involves setting the necessary ground control needed to support photogrammetric <br />mapping <br />and aerial imaging operations. <br />Johnson-Frank & Associates, Inc. will coordinate closely with the City to ensure full <br />understanding of the control requirements, and successfbl execution of the ground control <br />survey. <br />Analysis of the CityICounty's available control will be performed in preparation for a <br />survey. We propose setting as many targets as possible coincident with points in the <br />existing control network. Research will be performed in preparation for any special <br />centerline determination, right-of--way determination and legal description requirements <br />associated with a project. <br />A flight and control planning map will be submitted to the City for each project. Formal <br />approval will be obtained from the City prior to mobilizing any field or airborne assets. <br />Field crews will be mobilized to the project site. Static GPS sessions will be performed <br />using Trimble 4000 andlor 5700 GPS receivers to obtain precise position and elevation <br />information for each target location. Targets will be painted in preparation for the photo <br />flight. <br />All survey data will be reduced and checked using Star*Net software. Control point <br />positions will be output in the coordinate, datum and unit systems desired by the City. A <br />survey report will be provided to the City Surveyor; together with a Microstation file and <br />hardcopy plot of the survey. <br />Aerial Photography <br />l8 <br />25K-20 <br />