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SCOPE OF SERVICES CITY OFSANTAANA SANTA ANA BOULEVARD GRADE SEPARATION MARK 7MOMAS that deviate from SCRRA standards and manuals. Figure 1 below illustrating the general footprint of These are anticipated to include requests for the topographic data/aerial imagery to be captured deviations from 1) minimum temporary horizontal and processed. clearance requirements, 2) the requirement that a Mark Thomas will map all planimetric feature data minimum of two columns be provided per track, in three dimensions to generate an Aerial and 3) bridge skew angle. Topographic Survey Base Map with aerial imagery 4.3 Design Exceptions —Caltrans background at 1" = 40' scale. Mapped features will Our team will coordinate with Caltrans regarding generally include roof outlines of buildings and any existing non-standard design features at the I- other major structures, tops/toes of channels, edge 5 ramp intersection. It is not expected that this of pavement for all paved surfaces, manholes, grade separation project will create any new non- drop inlets, parking areas, curbs/gutters, standard features that would require a Design sidewalks, fences, walls, signs, utility poles, light Standard Design Document (DSDD) to be poles, above ground utility service facilities, storm prepared. drain facilities, ditches, streams, trees/tree outlines, dense brush, bulkheads, and other visible Task Deliverables: improvements at the surface elevation. Mass • City Design Memorandum points and break lines will be collected along all • SCRRA Design Exception Memorandum mapped improvements listed above to create continuous contours with a 1.0' interval and a Task 5 Site Survey Digital Terrain Model (DTM). 5.1 Project Control Assumptions Mark Thomas will establish horizontal control • Up to eight (8) aerial ground control targets based on CCS83, Zone VI, and vertical control will will be established be based on the City of Santa Ana Vertical Datum, • Aerial topographic mapping will not be to be confirmed with the City prior to control reviewed by Caltrans (no "ABC" submittalfor this project) establishment. Mark Thomas to set temporary . Field surveys to be conducted under traffic control points for future design and construction survey within the project limits. Mark Thomas to control plan, if required. obtain applicable encroachment permits prior to Task Deliverables beginning any field survey work. Mark Thomas to 0 Project Control in CSV and PDF formats also coordinate and verify datum(s) with SCRRA, . Basemap LandNet file in AutoCAD, PDF where appropriate. formats 5.2 Aerial Topography . Aerial Topographic Survey Base Map in Once the project control is established, Mark AutoCAD, PDF and SHP formats Thomas will establish supplemental horizontal and • Color Digital Orthophotography (JPG or vertical control necessary for orienting the TIFF format) photogrammetric survey. Mark Thomas will acquire • Digital Terrain Model (DTM) in CAD format new color stereo image data covering the above- • Site Photos, Videos and Field Notes mentioned project area that will be suitable in 5.3 Field Survey resolution, scale and image quality for developing key topographic break lines and improvements. Once the geometries are refined utilizing the aerial Mark Thomas will collect data during the primary mapping, Mark Thomas will perform supplemental data acquisition mission using conventional flight as-built design surveys within the Project Area, methods. Aerial imagery will be obtained when the approximate areas as shown below in Figure 1, ground is not obscured by smog, haze, fog or dust, per direction of the resident engineer. Topographic and when cloud or cloud shadow coverage will not survey data to be collected using a conventional appear in any image. Refer to MAGENTA area in Total Station, statictmobile LiDAR and/or GPS and