Laserfiche WebLink
<br />. <br /> <br />Preliminary Soils Recommendations: Prepare preliminary soil design parameters and <br />recommendations for the proposed widening. <br /> <br />. <br /> <br />Prepare Geotechnical Design and Materials Report: Prepare detail report including <br />design recommendations for pavement sections, subgrade preparation for culverts, <br />information on groundwater conditions, and other relevant geotechnical issues. <br /> <br />. <br /> <br />Discuss seismic considerations, evaluate the liquefaction potential and comment on the <br />site soil conditions from this standpoint. Information related to Caltrans Seismic design <br />criteria such as depth to rock like material and peak rock acceleration shall be provided. <br /> <br />. <br /> <br />Prepare the report doclUTIenting the work performed, physical data acquired and <br />geotechnical design recommendations. <br /> <br />. <br /> <br />Using the general plan as a base map, prepare Soil Survey Sheets and Log of Test <br />Borings for roadway and structures, respectively, in accordance with the Caltrans <br />standards. <br /> <br />b) Bridge Foundation Report <br /> <br />. <br /> <br />Research and Data Collection: Review of readily available published geologic and soil <br />literature in the vicinity of the site including review of the as-built drawings and existing <br />LOTB. <br /> <br />. <br /> <br />Permits: We will comply with the City and Caltrans Pennit requirements. We will <br />obtain necessary utility clearances for field exploration. <br /> <br />. <br /> <br />Field Exploration: For the proposed new ramp bridge structure, drill 2 borings ranging in <br />depth tram 25-30 meters in depth. The boring locations will depend upon the available <br />access and any boring data tram previous studies. A truck mounted drill rig is <br />anticipated for this work. Some traffic control is asslUTIed at this time in areas where <br />necessary. <br /> <br />. <br /> <br />Classify and continuously log subsurface soil conditions encountered in each test boring <br />at the time of drilling. Obtain "relatively undisturbed" and bulk samples of substrata <br />from test borings. The borings will be drilled and capped in accordance with the permIt <br />requirements- <br /> <br />. <br /> <br />Laboratory Testing: Perfonn laboratory tests on representative soil samples such as <br />moisture density, unconfined compression, gradation analyses, colTosion tests and <br />Plasticity Index test, as necessary. <br /> <br />. <br /> <br />Soils Analysis/Evaluation: Perfonn engineering analyses <br />recommendatIons fÒr the proposed foundations and approaches. <br /> <br />to <br /> <br />develop <br /> <br />design <br /> <br />City o/Belmont - Route lOlRalslOfI .-11'" IC /WodijÌcatiolls <br />Proposal - PS&E <br /> <br />O-/I)(¡¡OO <br /> <br />4 <br />