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3C) Utility Location: Using GPR, consultant's utility locator will field locate utility alignments and depths for utility mains and laterals for utilities within all streets and two of the 2020 Pedestrian Crossing Improvement intersections in accordance with key assumptions to the extent that GPR methods can detect utilities. If GPR cannot establish utility alignments and or depths, potholing may need to be completed for additional scope and fee. GPR along utility mains will be marked at various locations along each street section. Traffic control will consist of a 1 -man crew with traffic control arrow board and signs. Items excluded from work are as follows: • Cost of permits and inspection of any kind on this project • Night shift or overtime • Certified or stamped traffic control plans • Lane closures • Pressure washing paint marks Utility location markings from the GPR investigation will be included in topographic surveys. No utility potholing is included in this scope of work. Deliverables: Marked Utility Depth and Alignments and Electronic Collection of Utility Information. 3D) 70% PS&E: Preliminary PS&E will be revised to incorporate comments received from the City. Consultant will meet with the City to review these comments, from which the 70% PS&E will be prepared. Consultant will provide a response to each comment that is included in a comment table provided by the City. Consultant will prepare the 70% PS&E for the planned pavement reconstruction street sections and the three intersections identified for pedestrian crossing improvements. The 70% plans will incorporate typical design elements including layout plans for reconstruction street sections, pavement treatments, right-of-way parcel lines, preliminary design, wedge grinds, conform grind locations at intersecting side streets, typical cross- sections, curb and gutter repairs (adjacent to curb ramps), gutter flow line for drainage repairs, and limits of work. The plans will be prepared in AutoCAD format on 24" x 36" sheets, drawn at a scale of V=20'. Rehabilitation plan sheets will include base repair schedules and will show individual base repair locations. Base repairs will be marked in the field on the pavement in white paint, numbered, and verified prior to construction with the City's construction manager. Additionally, a table summarizing major work items (e.g., HMA tonnage, base repair area, etc.) and their estimated quantities will be developed and included on the respective plan sheets. This information is particularly useful to contractors when assembling construction bids and schedules, thus resulting in more competitive bids, and to the City for verifying pay quantities during construction. Traffic striping plans will be developed for all street section plans. Traffic striping is assumed to match existing conditions and traffic patterns unless minor changes are requested by the City Traffic Engineering Group or are required to be revised to meet current CA MUTCD standards. This may include alteration or addition of bicycle lanes, which it is assumed that the City Traffic Engineering Group will provide all appropriate details and lane configurations. Minor changes to traffic striping at the 2020 Pedestrian Crossing Improvement locations to accommodate the City's proposed improvements noted in the City's RFP are included in this scope. Otherwise, no significant traffic striping changes or design requiring traffic studies or assessment of traffic impacts is planned or included as a part of this scope. The 70% PS&E striping plan submittals will include City standard improvements in a layer/color separate from the existing 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 8 of 10