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❑ � ❑ Kimley-Horn Mr- r <br /> erty Swanson, August 31 , 2006, Page 4 <br /> and Associates, Inc. <br /> Topographic and right-of-way data associated with the current 271i Avenue <br /> improvements will be expanded to incorporate the above described limits. <br /> C. Geotechnical investigation <br /> An outline for the proposed geotechnical services provided by our sub . <br /> Consultant in connection with the project's design is shown below. <br /> 1 . Conduct visual reconnaissance along the proposed roadway <br /> corridors. Include photographic record of typical, key, or anomalous <br /> site features noted during the reconnaissance. Review aerial <br /> photographs, information form the Soil Survey of Indian River <br /> County, Florida. <br /> 2. Perform mechanical auger borings at pavement coring locations to a <br /> depth of six feet. Perform hand auger borings following ASTM D <br /> 1586 along the proposed roadway improvements to depths of six <br /> feet. Coordinate with utilities prior to start of borings at 200 foot <br /> centers will be located in non-paved areas and staggered from left <br /> side of road to median, to right side of road. Additional borings will <br /> be obtained in the vicinity of the proposed mast-arm foundations to <br /> aid structural design. <br /> 3 . Measure and record depth to groundwater upon completion of each <br /> boring and one hour thereafter and log the date and time of <br /> measurements. <br /> 4. Note any rubbish, trash, debris or auger refusal, if encountered. <br /> Also note any contamination with petrochemicals evident visually or <br /> through odor or the soils encountered. If petrochemicals are <br /> encountered, notify the COUNTY immediately. Appropriately <br /> backfill all borings after recording ground water levels. Work shall <br /> be done at times that will minimize traffic disruptions (avoid AM <br /> and PM peak traffic hours). Provide appropriate lighting and safety <br /> traffic control devices such as flashing messagelarrow boards during <br /> the work. Coordinate with utilities prior to start of coring activities. <br /> 5. The typical Geotechnical Report will include: <br /> • Discussion of site regional geologic or physiographic setting. <br /> • Discussion of general and specific subsurface conditions <br /> encountered by the exploration. <br /> • Discussion of any adverse soil conditions (such as muck, high <br /> plasticity clays, etc .) encountered during the exploration. <br /> Include recommendations for remedial actions (removal, <br /> stabilization, etc.) for any adverse conditions found. <br />