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Page 14 of 59 <br /> <br />City of Everett Merrill & Ring Bridge Replacement <br />3.4.3 Generate Hazardous Materials Analysis Report: HWA will prepare draft and final <br />Hazardous Materials Analysis Reports summarizing the data reviewed and assessing the <br />potential presence of contaminants in soil, groundwater, sediment, and/or surface water in <br />the project corridor. <br /> <br />3.5 Engineering Analysis <br />3.5.1 Evaluate Field and Laboratory Data: Based on the borings and the laboratory test results <br />of selected samples, HWA will generate estimates of the soil strength and other <br />properties needed to evaluate the effects the subsurface conditions will have on the <br />proposed improvements. <br /> <br />3.5.2 Develop Geologic Cross-Sections: HWA will construct a geologic cross-section along the <br />centerline of the project. This cross-section will show CONSULTANT’s interpretation <br />of soil conditions along the bridge alignment and will be provided in a geotechnical <br />report. <br /> <br />3.5.3 Generate AASHTO seismic design parameters: Based on the soils encountered along the <br />alignment, CONSULTANT will determine the Site Class for seismic design. The design <br />spectral acceleration parameters will then be selected in accordance with the AASHTO <br />LRFD Bridge Design Specifications. <br /> <br />3.5.4 Evaluate Slope Stability: HWA will evaluate the global slope stability of the steep slopes <br />to identify potential impacts to the project. Results of the field reconnaissance, <br />exploration, and testing programs will be incorporated in the analysis. Global stability <br />will be evaluated using the limit equilibrium approach under both static and seismic <br />loading conditions. <br /> <br />3.5.5 Evaluate soils for Liquefaction and Lateral Spread Potential: HWA will evaluate the <br />susceptibility to liquefaction of the soils along the bridge alignment for the design event <br />required by AASHTO. Once the susceptibility to liquefaction is determined, the potential <br />for lateral spreading will be evaluated. <br /> <br />3.5.6 Evaluate Bridge Foundation Vertical Capacity: HWA will perform analyses of <br />foundation vertical capacities using accepted drilled shaft and/or spread footing <br />estimation methods provided in the AASHTO LRFD Bridge Design Specifications and <br />the Washington State Department of Transportation (WSDOT) Geotechnical Design <br />Manual (GDM). <br /> <br />3.5.7 Evaluate Bridge Foundation Lateral Capacity: HWA will develop bridge foundation <br />lateral parameters. The lateral parameters will be provided in the form of LPILE input <br />parameter tables for drilled shaft foundations and equivalent fluid passive pressures for <br />spread footings. <br /> <br />3.5.8 Generate Abutment Lateral Earth Pressures: HWA will provide lateral earth pressure <br />recommendations for proposed abutment structures and wing walls. Earth pressure