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Lincoln Avenue Pedestrian Pathway ConnectiNty I Park Lane to Santiago Creek CONCEPTUAL PLAN Once we have conducted our Initial field site visits, finished the records & utility research, completed geotechnloal evaluations, ciarifled environmental requirements, received direction on pathway surface treatments as well as wall and fence configurations, and selected the proposed Best Management practices (BMPs), completion of the Concept Design Plans will occur. The selection of BMPs will be subject to site specific conditions and Tetra Tech will ensure compliance with all regulations and permitting requirements. The Concept Design Submittal Package will include up to five (6) sheets including; two (2) plan sheets depicting the layout of the proposed path, one (1) sheet for typical sections, and two (2) sheets for details. Tetra Tech understands that work on the 90% and 100% Final Design submittals will not begin until there is approval of the updated Concept Plan (similar to a 30% P$&E level plan). In order to meet the City's expectations Tetra Tech will develop and deliver detailed Plans, Specifications and Estimates (PS&E) within two submittals. The first one being a 90% PS&E submittal package and the 2nd 100% PS&E being the final submittal package developed at a high level of accuracy ready for project advertisement. Both submittal packages will Include a complete set of plans, specifications, and cost estimate inclusive of the proposed Improvements from each discipline covered in this section. PATHWAY SURFACE CIVIL Tetra Tech will prepare the necessary project pathway surface and other civil and drainage design PS&Es work Including sidewalk and curb ramp work as required for any sidewalk, pathway and/ or pavement work based on the chosen surface treatments and any other updates to the original Concept Plan previously developed by the City, Work will be in compliance with ADA and meet the Intent of any Blkeway Masterplan documents. The plans will include a demolition plan as well as plan view layouts and profile sheets inclusive of Improvements consistent with the findings from the geoteohnlcal evaluation, Typical Sections will be developed for each of the varying path segments as well as details for each of the proposed Improvements. DRAINAGE DESIGN Tetra Tech will prepare the necessary project civil and drainage design PS&Es work including storm drain, swale, BMP, and any other LID proposed Improvements required to properly convey and treat runoff from the project while meeting all regulatory requirements, Work will be In compliance with City, County Hydrology and-1NQ4W standards,7end- The plans will Include findings from the geotechnlcal evaluation of the native soil permeability. Plan sheets, details, and typical sections will be prepared as part of the submittal package. If permeability is found to be low and storm drain Improvements Into Santiago Creek are required, an additional plan and profile sheet along with specific details for connection into the Creek will be Included. WALL DESIGN (OPTIONAL TASK) Tetra Tech will prepare the PS&E package necessary to construct the masonry privacy wall and retaining wall, along with the proposed fence adjacent to the existing railroad. The submittal package will include wall plan and profiles, structural wall sections and details, and signed and stamped structural calculations by an licensed Civil or Structural Engineer in the State of California. The wall will be designed per the current California Building Code (CRC) requirements utilizing the recommendations from the geotechnlcal evaluation for the proposed retaining wall and fence footings, PATHWAY LIGHTING AND ELECTRICAL DESIGN The lighting and electrical design plans will be based on the City's selection of either Option 1 or 2 in the Conceptual Design phase, Tetra Tech will prepare the necessary pathway lighting and electrical design PS&Es. Tetra Tech will also TETRATECH 25