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Task 3 — Plans, Specifications & Estimates (PS&E) The work that will be performed during the development of design PS&E are outlined in the subsequent tasks. 3A) Design Data Gathering: Consultant will review relevant available data and records from the City, public and private utility providers, and other sources that may be appropriate to support the preparation of project contract documents. These may include but are not limited to the City drainage structure inventory maps, aerial photographs of the City, as -built street improvement and infrastructure plans, striping and markings, as -built plans from utility providers, including any preliminary plans for future work that may conflict with this project. The gathered information will be compiled and included in the topographic surveys used for design. Consultant has assumed that the City will be able to provide the following: 1. Any information readily available regarding utilities (i.e., water, sanitary sewer, electrical, and storm drain), boundary and property limits (if available), tree locations, site features and existing construction as is available from City. 2. Readily available aerial maps. 3. As -built drawings for existing lighted pedestrian crossing facilities (i.e. wiring, structures) on the overlay program street list and the 2020 Pedestrian Crossing Improvements. 4. Indicate any other planned improvements adjacent to the 2020 Pedestrian Crossing Improvements. 3B) Topographic Survey and Preliminary Design: Consultant will complete monument/control recovery, field investigation and field surveys sufficient to prepare a topographic mapping product for all streets in the project. The mapping shall be compiled at an agreed upon scale with a 1' contour interval and will be based on the City Datum. The mapping area shall be a corridor along each of the street sections between the existing back of walk to opposite back of walk, starting and stopping at the designated locations and including through the returns of the terminating streets. In the absence of an existing sidewalk, the survey will extend to 5 feet behind the curb or edge of pavement, or up to the first substantial barrier (wall, fence, etc.), whichever occurs first. Lastly, the mapping will extend 25 feet beyond the curb return up each intersecting side street. The topographic data to be collected for the Annual Overlay/Rehabilitation street list is more specifically defined as: • Cross-sections at 50' intervals along with detailed surface topography and/or additional spot elevations as required defining the longitudinal and cross slope grade breaks. Typically the cross section will include back of walk, top of curb, flowline and lip of gutter, pavement'/4 point (if one exists), and pavement centerline. • Surveyed locations for significant surface features, such as curbs, gutters, sidewalks, driveways, misc. concrete, pavement, striping, fences, surface utilities, trees, signs, street lights and signals will be included. A structure inventory for sanitary and storm drain facilities reflecting rim elevations, invert elevations, pipe direction and pipe size will be provided for accessible structures within the mapping limit. To the extent visible, consultant will obtain a measurement from the top of manhole rim to the top of cone, and note any adjustment rings. Consultant shall not enter a manhole to obtain any data. Consulting Services Agreement between City of San Leandro and Nichols Consulting Engineers for Annual Street Overlay/Rehabilitation 2019-21, Project No. 2020.0050 Exhibit A — Page 6 of 10