25B - SANTA ANA BLVD GRADE SEPARATION

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Unless otherwise noted, the deliverables for the following technical studies will be a separate bound report including a standardized project description, a methodology relevant to each topic area, description of the affected environment, impact assessment, and mitigation measures. The screencheck technical study will be submitted to the City (two copies) and to Caltrans (four copies) for concurrent review. Following City and Caltrans review a Draft of each technical study will be submitted to the City (two copies) and to Caltrans (four copies) for concurrent review. Following Caltrans and City second review it is assumed that a revisions workshop will be held to address any outstanding comments, if any comments remain. Following the revisions workshop a final version of each report will be prepared. The final technical studies (two copies to the City and four copies to Caltrans) will be submitted following the workshop for final concurrence (no additional comments are assumed to be received associated with the final concurrence review). For this scope of work, the technical studies for which a specific scope of work has been included have been assumed based on a review of existing project information. If additional studies are identified during the environmental phase of the project a scope of work and cost will be submitted for approval prior to their initiation. Deliverables: Screencheck technical studies (6 copies each) Draft technical studies (6 copies each) Final technical studies for concurrence (6 copies each) Final approved technical studies (6 copies each) The following assumptions have been made with regard to the technical studies that are to be prepared: • Engineering plans, including limits of construction, staging areas, and borrow/disposal sites, if needed, will be provided by the engineering team at a level of detail sufficient for preparing the technical studies (roadway lanes, topographic information [including changes in topography resulting from the proposed project], state plane tick marks, station numbers, and existing structures within 500 feet of the proposed project). • Mapping showing existing conditions (roadway lanes, topographic information, state plane tick marks, station numbers, and existing structures within 500 feet oi'the proposed project) will be provided by the engineering team. • Cross sections along the alignment showing existing and proposed conditions at an interval sufficient for preparing the noise analyses will be provided by the engineering team. • Aerial photograph at a scale suitable for preparation of project mapping, figures, and analyses will be provided by the engineering team (1 inch=200 feet scale minimum, with a minimum of 500 feet to the east and west of Pine Avenue shown and any other areas of improvement). Pixel size shall be no more than 2.5 square feet and image shall be orthorectified. • Focused protocol surveys for any species are not included in this scope and cost, other those specified under the Natural Environment Study scope. If additional focused surveys are identified during the biological field reconnaissance then this will be communicated to AECOM and the City and a scope and cost for this work will be provided. • Geotechnical, traffic assessments, Storm Water Data Report (SWDR) and/or Water Quality Report, and any floodplain analyses/technical reports (Location Hydraulic Study and Summary Floodplain Encroachment Report or Floodplain Evaluation Report), if required, will be provided by AECOM and these analyses will be provided to ICF Jones & Stokes for incorporation into the environmental document and for use in the technical analyses. • Traffic information shall contain 24-hour and hourly traffic counts separated by direction and vehicle classification (autos, medium trucks, heavy trucks) over at least three weekdays, along with peak hour and average daily traffic (ADT) forecast traffic volumes for existing conditions, opening year, and design year with and without the project for roads in the project area, and posted speeds. In addition, subregional/regional traffic information will be provided that includes vehicle miles travelled (VMT) data for existing year, opening year (build and no-build) and horizon year (build and no-build) broken down into five mph speed bins. This data is needed in order to evaluate Otl' 0/ Santa /1 I?a 25B-31