Agmt17 AECOM Technical Services, Inc.

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vertical clearances, obstructions, tree survey locations, lighting fixtures, fences, retaining walls, creeks, drainage swales and ditches and other features necessary to complete the design. Also perform field surveys to locate features such as curbs, walks, edge of road, edge of traveled way and other critical existing features. This task includes a budget for twenty (20) field days for this work, including additional office surveying support time (which is approximately equal to the field time). Task 2.3 Geometric Refinements AECOM will refine the design files to serve as background and basis for developing the PS&E (Task 3.2). Master Geometric Electronic Files will be refined based on the results of the ground survey work to establish the final vertical and horizontal alignment of the project and to identify additional design exceptions. The Project Report (PR) preliminary design will be checked for potential conflicts with existing facilities or deviations from the Project design criteria and design standards. Structure location and limits, right of way requirements, coordination of above and below ground utilities, stage construction, traffic handling, and environmental constraints will be collectively considered in this effort. The drawings will include the following information: • Horizontal and vertical clearances • Public roads, streets, creeks, channels, and major developments • Right-of-way lines with access control and access locations • Layout lines Task 2.4 Geotechnical Investigation and Testing AECOM will evaluate the geotechnical conditions for the Project. The geotechnical and geologic investigation program will: • Characterize the site-specific subsurface soil, rock and groundwater conditions that can be expected at the foundation locations for the proposed bridge structures and retaining walls (MSE and ground anchor), and for the embankments and pavement sections. • Characterize and provide recommendations for the mitigation of geologic hazards which might affect the proposed bridge structures and retaining walls. Provide geotechnical engineering recommendations to support the final design of the foundations for seven bridges and eighteen non-standard retaining walls, as described in Task 3.4, Structure Type Selection. The specific scope of work for the geotechnical and geologic investigation program will be: • Perform site reconnaissance to finalize the exploratory boring locations and access routes. • Prepare project -specific Geotechnical Investigation Work Plan. • Obtain subsurface drilling permit from San Mateo County Environmental Health Services Division, State encroachment permit from Caltrans, and street encroachment permits from the City to conduct geotechnical explorations and sampling, and coordinating with City to notify affected public in advance of fieldwork (access to private properties is assumed to be provided by others). Page 17 of 73 REV: 07-18-17 PR ATTY/AGR.2017.166/AECOM 101/84 PS&E