Agmt17 AECOM Technical Services, Inc.

Browse Search

4. Foundation Reports/Log Of Test Borings AECOM will prepare and submit nine (9) separate Foundation Reports for each structure (7 for the bridges and 2 for the non-standard retaining walls, one for each type) which will have been prepared and signed by an Engineering Geologist or Geotechnical Engineer, with deep foundation experience, registered in California. The Foundation Reports will be prepared in accordance with Caltrans' Guidelines for Foundation Investigations and Reports, Version 2.0 (updated December 2009) and applicable Caltrans standards. These reports will include a discussion of the site geology and subsurface conditions, geotechnical engineering analyses for the structures, results of laboratory testing, geologic hazards, site seismicity, corrosion evaluations, foundation recommendations and the new and previously completed Log of Test Boring sheets. The seismic evaluations will be completed in accordance with Caltrans' Seismic Design Criteria, Version 1.7 (April 2013) and the corrosion evaluations in accordance with Corrosion Guidelines, Version 2.1 (January 2015). 5. Geotechnical Design Report AECOM will prepare a Geotechnical Design Report in accordance with Caltrans' Guidelines for Preparing Geotechnical Design Reports, dated December 2006, and include the following information: Seismicity Geology Provide Boring Records and Log of Test Borings Provide geotechnical parameters for overhead sign structures 6. Materials Report AECOM will prepare a Materials Report in accordance with California Test Method 130 to include the following topics: Characterization of subgrade based on geotechnical data obtained from shallow explorations samples and laboratory tests described in Task 2.4; Geotechnical soil profile; Pavement design in accordance with Caltrans Highway Design Manual; Corrosiveness of soils; Culvert and storm drain materials; and • Project -specific technical specifications. AECOM will evaluate corrosion potential of subsurface environment based on corrosion testing on selected soil samples and recommend appropriate foundation and culvert types. The corrosion assessments will be prepared in accordance with Caltrans Corrosion Guidelines (Version 2.1 dated January 2015). A minimum of two soil samples from each boring location as required by the Caltrans standards will be selected. Each sample will be approximately 3 pounds of soil at 3 feet below grade and near the water level. The soil Page 21 of 73 REV: 07-15-17 PR ATTY/AGR.2017.166/AECOM 101/84 PS&E