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C . Geotechnical Investigation <br /> Preliminary Geotechnical Report developed for the PD&E Study of the CR 510 will be <br /> reviewed, updated and utilized in the Project. Additional geotechnical services will include <br /> the following tasks : <br /> 1 . Review information from the Soil Survey of Indian River County, Florida, and any <br /> geotechnical data furnished by the COUNTY . The Geotechnical Subconsultant may <br /> rely upon information furnished by the COUNTY without independent review and <br /> verification . <br /> 2 . Additional borings will be obtained for proposed pond locations , in the vicinity of the <br /> proposed bridge structures and proposed mast-arm foundations to aid structural <br /> design . <br /> 3 . Additional borings , if needed, will be obtained by amendment to delineate any found <br /> muck/organic deposits . <br /> 4 . The updated Geotechnical Report will include : <br /> • Discussiun of site regional geologic or physiographic setting. <br /> • Discussion of general and specific subsurface conditions encountered by the <br /> exploration . <br /> • Discussion of any adverse soil conditions (such as muck, high plasticity <br /> clays , etc . ) encountered during the exploration . Include recommendations <br /> for remedial actions (removal , stabilization, etc . ) for any adverse conditions <br /> found. <br /> • Discussion of any petroleum or other hazardous contamination encountered <br /> by the borings . Identify and map locations of concern based on the <br /> reconnaissance . <br /> • Recommended LBR for pavement design (subsoil and subgrade) . <br /> • Recommendations for soil construction for roadway including base material , <br /> subgrade and embankment preparation and compaction . <br /> • Estimated hydraulic conductivity of soils encountered on left and right side <br /> of roadway based on typical relations between relative density, grain size , <br /> and soil type . <br /> • Boring profile reports . <br /> Deliverables shall consist of six (6) copies of the Geotechnical Report with soil boring records , test <br /> results , photographs and similar data, summary of testing program and recommendations ; soil boring <br /> plan for incorporation into the roadway plan package . <br /> D . Roadway Plans <br /> Page 6 of 16 <br /> CR 510 Design Agreement20051104.doc November 7 , 2005 <br />