25G - ENGINEERING SRVS GRADE SEPARATION

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AECII (no additional comments are assumed to be received and no-build) and horizon year (build and no- associatedwith the final concurrence review). build) broken down into five mph speed bins. For this scope of work, the technical studies for which a This data is needed in order to evaluate GHG specific scope of work has been included have been emissions consistent with the latest guidance assumed based on a review of existing project from Caltrans Headquarters. This stems from information. If additional studies are identified during the fact that GHG emission factors vary the environmental phase of the project a scope of work depending on travel speed. and cost will be submitted for approval prior to their NEPA/404 integration process will not be initiation. required. • It is assumed that all rights of entry and access Deliverables (6Copies ofEachJ: for field work and surveys, if required, shall be • Screencheck technical studies obtai ned and provided by the City or AECOM. • Draft technical studies Public meetings and/or hearings are not • Final technical studies for concurrence assumed or included. • Final approved technical studies Section 4(f) Evaluation will not be required. • A Community Impact Assessment will not be The following assumptions have been made with regard required to the technical studies that are to be prepared: Relocations would not occur and a relocation document will not be required. • Engineering plans, including limits of construction, staging areas, and borrow/disposal sites, if needed, will be The proposed project improvements will be subject to provided by the engineering team at a level of compliance with Section 106 of the National Historic detail sufficient for preparing the technical Preservation Act. This requires consideration of studies (roadway lanes, topographic potential project effects to historic properties including information [including changes in topography archaeological and historical resources listed in or resulting from the proposed project], state eligible for listing in the National Register of Historic plane tick marks, station numbers, and existing Places according to criteria listed in 36 CFR800. structures within 500 feet of the proposed Caltrans administers Section 106 compliance on behalf project). of FHWA and requires that documentation conform to • Mapping showing existing conditions (roadway specifications contained in Caltrans Standard lanes, topographic information, state plane tick Environmental Reference. As of January 1, 2004, marks, station numbers, and existing cultural resource studies must be prepared and structures within 500 feet of the proposed processed in accordance with the Programmatic project) will be provided by the engineering Agreement among the Federal Highway Administration, team. the Advisory Council on Historic Preservation, the • Cross sections along the alignment showing California State Historic Preservation Officer, and the existing and proposed conditions at an interval California Department of Transportation Regarding sufficient for preparing the noise analyses will Compliance with Section 106 of the National Historic be provided by the engineering team. Preservation Act, as it Pertains to the Administration of • Focused protocol surveys for any species are the Federal-Aid Highway Program In California. not included in this scope and cost, other those specified under the Natural Environment Study ICF Jones & Stokes shall conduct a records search at scope. If additional focused surveys are the Information Center of the California Historical identified during the biological field Resources Information System and through the Sacred reconnaissance then this will be communicated Lands File at the Native American Heritage Commission. to AECOM and the City and a scope and cost for This records search will consult California's database of this work will be provided. previous studies and previously recorded sites within • Traffic information shall contain 24-hour and the proposed project area and within a 0.5-mile radius, hourly traffic counts separated by direction and per Caltrans guidelines. Historic maps and photographs vehicle classification (autos, medium trucks, shall also be reviewed, if available. ICF Jones & Stokes heavy trucks) over at least three weekdays, shall establish an Area of Potential Effect (APE) map in along with peak hour and average daily traffic consultation with the City and Caltrans for obtaining (ADT) forecast traffic volumes for existing Caltrans approval. The map shall provide the survey conditions, opening year, and design year with boundaries for cultural resources to be evaluated during and without the project for roads in the project project studies. The APE map shall be based on the area, and posted speeds. In addition, total anticipated disturbance footprint associated with subregional/regional traffic information will be project activities (e.g., road widening/interchange provided that includes vehicle miles travelled construction, staging areas, detours, drainage facilities, (VMT) data for existing year, openingyear (build and parcels containing impacted structures, if any). 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