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Inc. will evaluate the information and provide the required <br />geotechnical parameters for the design of pavement structural <br />sections to the design team. <br />5. The proposed boring holes will be backfilled by the soil cuttings <br />and patched with quick set concrete. <br />6. Leighton Consulting, Inc will place hazard signs and cones along <br />the traffic lines in the area of our investigation for traffic control <br />purposes. Professional traffic control crew costs are not considered <br />as part of the proposed fee. <br />7. Soil samples will be collected in each boring. Ring samples will be <br />taken at depths of 2.5 and 5 feet below the existing grade (bgs). <br />Bulk samples will be obtained from the native soils for R -value and <br />sulfate and chloride content tests. <br />8. Perform laboratory testing on selected samples to determine the <br />soil properties, such as: classification/ stratification per Unified Soil <br />Classification system, in-situ density and moisture content at <br />depths of 2.5 and 5 feet bgs; sieve analysis; Atterberg Limits, <br />Expansion Index; R -value; and sulfate and chloride contents. The <br />soil samples for geotechnical testing are assumed to be free of <br />contamination. <br />9. Engineering analyses to provide existing pavement thickness and <br />geotechnical engineering design recommendations regarding <br />pavement structural sections and rehabilitation measures. The <br />rehabilitation alternatives will include Portland Cement Concrete <br />Pavement (PCCP), grinding and overlaying with Glasgrid, and <br />asphaltic concrete. <br />10. Five (5) copies of the final report consisting of our findings and <br />recommendations will be submitted. <br />G. DRAINAGE EVALUATION <br />PENCO Engineering, Inc. will utilize survey information, as -built plans, <br />and other existing available information to conduct a hydrology study of <br />the project area. The study will be prepared in full compliance with the <br />City and the County of Orange's Hydrology Manual Standards. The <br />proposed improvements will be quantified and construction cost <br />estimates will be provided to facilitate City decisions as to the scope of the <br />construction. <br />P:\2008\02344.00 - City of Santa Ana OnCall\Attachment A\Civil Engineering Scope of Services.5.20.08.doc <br />