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I<,PG <br />TASK 2 - GEOTECHNICAL DESIGN <br />Objective: Perform a geotechnical investigation for the project, provide engineering analysis and <br />recommendations for pavement overlay design and document in a geotechnical report. <br />Consultant Responsibilities: <br />!. Mark proposed coring locations. <br />2. Perform "One Call" state utility notification to locate underground utilities. Adjust boring <br />locations as needed. <br />3. Prepare Right of Way use application and submit to Kittitas County. <br />4. Prepare traffic control plan and submit to Kittitas County. <br />5. Perform visual assessment of pavement condition. <br />6. Perform 20 pavement cores and shallow subsurface excavations using hand tools to assess <br />pavement layer thicknesses and subgrade support conditions. Pavement cores will be <br />backfilled with compacted gravel and patched with Aquaphalt cold patch. <br />7. Prepare photographic logs of pavement cores and assign laboratory testing on selected <br />samples. <br />8. Perform engineering analyses for pavement overlay design. <br />9. Prepare a draft geotechnical report presenting the results of our explorations and <br />engineering recommendations. <br />10. Prepare final geotechnical report. <br />Assumptions: <br />1. The subject matter of the report will be limited to the project overlay <br />2. Temporary traffic control for coring can be provided using flaggers. <br />Countv Responsibilities: <br />L. N/A <br />Deliverables: <br />t. Draft and Final Geotechnical report for the Vantage Highway Pavement and Guardrail <br />Replacement project. <br />Page l4 <br />23 Wenatchee Ave, Suite 223, Wenatchee, WA 98801 P:509.663.2711 www.kpg.com