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2.02 Data Analysis <br />A. Review, evaluate, analyze, and incorporate data provided by Owner: <br />1. Hydraulic parameters from stream channel survey and analysis necessary to position the stream <br />below/within the culvert including, but not limited to, hydraulic grade line, necessary freeboard, <br />stream bottom profile, stream surface width, stream bottom width, and stream side -slope <br />requirements. (Owner to provide by April 27th, 2016) <br />2. Topographic survey and base map(s) (Owner to provide by April 27th, 2016) <br />3. Existing right -of way plans (Owner to provide by April 27, 2016) <br />4. Existing geotechnical reports and/or studies of the vicinity (Owner to provide by April 27th, 2016). <br />B. Geotechnical Field Investigation and Laboratory Analysis <br />1. Coordinate public utility locating for two (2) soil borings locations; one at each end of the culvert. <br />2. Coordinate and complete up to two soil borings up to 40 feet deep each (or until encountering <br />bedrock) using sonic coring methods. Standard penetration test (SPT) soil samples will be collected <br />about every 5 feet of depth. Drilling and sampling will be observed by a CONSULTANT <br />geotechnical engineer or geologist. <br />3. Collect near surface representative soil samples and assess particle size distribution of the Lodge <br />Creek bank and channel material within 25 feet upstream and downstream of the proposed bridge <br />(total of four samples). <br />4. Review soil samples_ <br />5. Complete geotechnical tests on selected soil samples, Including moisture content determination, <br />grain size analysis and plasticity characteristics. <br />6. Preliminary results of the field investigation will be discussed with the Owner. <br />7. The soil boring locations will be tied to the project layout with a station and offset from the existing <br />bridge. <br />B. Provide reasonable passage for traffic and signage while drill rig is at the culvert site. <br />C. Geotechnical Engineering Analysis and Report <br />1. Analyze collected field investigation data to characterize the geotechnical properties of the <br />subsurface. <br />2. Determine seismicity, seismic ground motions, and identify seismic hazards. Seismic design <br />parameters will also be provided. <br />3_ Evaluate and provide design/construction recommendations for temporary excavations, and <br />construction dewatering and supporting any necessary bypass structures. <br />4. Provide lateral earth pressures for design of culvert wing walls. <br />5. Qualitatively analyze slope stability of proposed embankments near the culvert ends. <br />6. Determine suitable bridge foundation type and analyze axial, uplift, lateral resistances and <br />construction considerations. <br />Page 3 of 10 <br />