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C . Geotechnical Investi ag tion The ENGINEER will provide geotechnical engineering services on this project including a review of existing information, field reconnaissance, roadway coring, Standard Penetration Test (SPT) boring and auger borings . The scope of service described below has been requested by the client. The requested scope of service for the proposed intersection improvement project will include the following : 1 . Perform up to 12 five-foot auger borings within the areas that are proposed to be widened to explore the shallow soil stratigraphy. The borings will be performed using a 3 - inch diameter hand (bucket) auger. 2 . Perform up to six roadway cores . The cores will be conducted using a 4- inch diameter diamond tipped core barrel . The thicknesses of the individual pavement components will be measured and the core holes will be backfilled and patched upon completion . 3 . Perform two SPT borings at the proposed mast arm locations to a depth of approximately 35 feet . The SPT borings will be drilled using a procedure similar to the Standard Penetration Test outlined in ASTM D- 1586 . The borings will be sampled at 18 -inch to 24-inch intervals to 10 feet deep and at 5 -foot intervals below 10 feet. 4 . Obtain soil samples from the auger borings for laboratory testing. This includes routine classification tests including standard sieve analysis , Atterberg Limits , organic contents, etc . 5 . Prepare a report including all data developed during the laboratory and field programs , and our recommendations relative to soil and groundwater parameters to be used in the design . D . Roadway Design Plans Design plans shall be prepared to include : 1 . Key sheet with location map 2 . General Notes 3 . Horizontal and Vertical Control 4 . Typical Sections 5 . Plan and/or Profile sheets 6 . Grading Plans 7 . Summary of Quantities 8 . Summary of Drainage Structures 7