Agmt 2009 Kimley-Horn & Associates Inc

Home

6.2.3 OPTIONAL TASK: Topographic Data Collection Survey/Right-of--Way Ground Control, Aerial Photography and Photogrammetric Engineering Our team will establish the required ground control, obtain aerial photography, and provide photogrammetric engineering to prepare a 40 scale aerial topographic base map with aone-foot contour interval and spot elevations on a 50-foot grid. The mapping area shall be defined as a 250 foot wide corridor centered on the physical centerline of the San Leandro Boulevard. The limits will be 50 feet north of the northerly curb returns of Davis Street and 50 feet south of the southerly curb returns of Williams Street. Mapping will also be prepared 100 feet down each side street. This mapping will show curbs, gutters, sidewalks, misc. concrete, pavement, striping, buildings, fences, surface utilities, tree drip lines, signs, street lights/signals visible from the aerial photography. The project will be tied to the NAD83 NAVD88 datum, or as agreed upon with the City in advance of any work being performed. As the field work is conducted to establish the control network, record monumentation within adjoining streets will be located (to the extent it is available) to facilitate the placement of the client provided or record right of way data on the aerial mapping product. No new monumentation will be set and no record of survey will be filed. The final product of this task will be the establishment of a project control network, which can be used for construction control. and a 40-scale/1 foot contour aerial base sheet in AutoCAD 2007 format. As an optional added deliverable, a geo-referenced color site ortho photo of the project area can be provided. This option will need to be approved as a part of the initial authorization to proceed. Suppleme~ital Topographic Data To further assist the design process, supplemental topographic data will be collected within the mapping limits. As a typical scenario, the referenced supplemental topographic data will: • Include the location of other surface features within the back of walk to back of walk corridor such as surface utilities, street furniture, trees, signs, signals etc. • Be drafted (maximum of 24 hours) and incorporated in the aerial base map with the final product being an electronic CARD file in AutoCAD 2007 format As an optional added deliverable, information regarding pipe types, sizes, invert elevations and directions can be collected. Rigkt-of--Way Lines As an optional service, we will compile the street right-of--way lines as well as intersecting property lines within the mapping area. This information will be based upon record data (record maps, Caltrans right-of--way mapping, Assessor's Parcel mapping etc.) and lines of occupation and will not be a result of a field survey. Once compiled, this data will be added to the aerial mapping to create a suitable basemap for the continuing construction document effort. This preliminary information can be completed without the benefit of title reports for each parcel. San Leandro Blvd-BART Interface Plan June, 2009 34 of 38