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R {b Indian River County 2- Proposal File No. 07-64-3136 „ f,*e We recommend that the project surveyor locate our borings horizontally and vertically (i . e . , determine the elevation of the ground surface at the boring locations) . This information will increase the accuracy of the data obtained . LABORATORY TESTING Routine laboratory visual classification will be performed along with specific classification tests deemed necessary (i .e . , sieve analysis , Atterberg limits and organic contents ) . ENGINEERING ANALYSIS AND REPORT Engineering analysis of all data obtained will be made to evaluate general subsurface conditions and to develop geotechnical engineering recommendations to guide site preparation and foundation design criteria for the bridge . For our analysis, we will require specific loading conditions for the bridge. Our recommendations as discussed above , together with all the data developed during the exploration will be submitted in a written report upon conclusion of the exploration . COST ESTIMATE The costs associated with the aforementioned tasks are presented below. Unit rates were obtained from the continuing services contract between Indian River County and Ardaman and Associates , Inc. If subsurface conditions are encountered during our field explorations that necessitate advancing the SPT borings to greater depths , the client understands and agrees to pay the additional drilling cost of $ 13 .25 per foot. 1 . Initial Site Visit, Layout of Boring Locations, Coordination of Field Work : Senior Project Engineer - 1 hour @ $ 98 .00/hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 98 .00 Project Engineer - 2 hours @ $ 85.00/hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 170 .00 Senior Field Technician - 4 hours @ $ 48 . 00/hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 192 .00 2 . Mobilization/Demobilization of Drilling Equipment 1 Mobilization @ $ 175.00/Mob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 175 . 00 3. Standard Penetration Test Borings : (2 borings to 60 feet) 100 feet of borehole at depths less than 25 feet @ $ 11 . 00lfoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1 , 100 . 00 100 feet of borehole at depths 26 to 50 feet @ $ 12 .00/foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1 ,200 .00 70 feet of borehole at depths 51 to 75 feet @ $ 13 .25/foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 927 .50 Ardaman & Associates, Inc.