25G - ENGINEERING SRVS GRADE SEPARATION

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AECIIV Jones & Stokes will also contact the Native American however, no resources or sites were identified during Heritage Commission and consult with Native American the field work that was performed for the Centerline groups and other interested parties to request project alongthe portion of Santiago Street where it information regarding the types of potential cultural intersects Santa Ana Boulevard. resources in the study area. Consultation will be conducted in accordance with appropriate and current Following completion and approval of the APE and state and federal regulations. detailed reports discussed above, a summary document (the HPSR) shall be generated in accordance with Following completion of the record search/review, ICF Caltrans/FHWA standards for Section 106 compliance Jones & Stokes shall conduct a field survey of the APE with the NHPA. It is anticipated that the proposed for archaeological resources. It is assumed thatthe City project shall result in an HPSR with a findingthat only or AECOM will be responsible for obtaining access for properties previously determined not eligible for conducting the surveys. This scope of work assumes inclusion in the NRHP or that are determined to be not that no archaeological sites will be identified in the APE eligible for inclusion in the NRHP are present within the and that no testing and/or evaluation will be required. It Project APE. No further cultural work, including Phase II is anticipated that an Archaeological Survey Report analyses/investigations and/or a Finding of Effect, are (Finding of No Archaeological Resources Present) will be assumed or included in this scope of work. prepared. for guidelines, the visual analysis will be prepared under the direction of a licensed Landscape Architect and Following completion of the record search/review, an based on FHWA's Visual Impact Assessment for ICF Jones & Stokes qualified architectural historian will Highway Projects. The existing visual environment and conduct a field survey of the proposed project area to viewshed will be analyzed using available mapping, record buildings, structures, and historic features aerial photos, GIS, and site reconnaissance. Project through photography and written descriptions. If plans and profiles will be analyzed to identify proposed buildings are substantially altered or are less than 50 physical changes to the study area and to aid in the years old, a qualified architectural historian can exempt identification of key observer viewpoints. them from further evaluation in accordance with the Section 106 PA. It is anticipated that up to four (4) Key viewpoints (visual quality "sensitive receptors")will buildings and structures will not be exempt under the be identified for the proposed project. Visual quality of PA and will require evaluation on California historic proposed conditions will be evaluated OF and FROM the resource inventory forms (series DPR 523). Any key viewpoints. That is, visual quality will be evaluated buildings beyond this number would be considered out "OF"the proposed improvements and "FROM" the of scope. ICF Jones & Stokes will send out letters improved facility toward the viewpoint. It is assumed requesting information on historic properties to local that up to three key viewpoints will be identified and governments, historical societies, and historic assessed. These viewpoints will be submitted to preservation organizations. The evaluation of Caltrans for approval prior to starting the analysis. properties within the APE will be reported in the FHWA methodology, includingthe evaluation of unity, Historical Resource Evaluation Report (HRER), which intactness, and vividness, will be applied. Mitigation will include a historic context statement. In addition, measures, such as finish treatment of structures and ICF Jones & Stokes will review the Caltrans historic sound barriers and plantings, will be recommended, if bridge inventory, and identify previously evaluated state necessary. Noise mitigation, including walls and/or and local bridges within the APE. berms will be included in the analysis if identified in the noise report. As part of the project an evaluation of several portions It is assumed that up to two visual simulations will be of what is anticipated would comprise the APE were included. evaluated. The depot that is located at the east end of the project alignment was constructed in 1986 and would not require evaluation (the original depot was ICF Jones & Stokes will prepare a noise study report demolished when the new depot was constructed). The evaluating the noise impacts and potential noise Juvenile Detention Home (located at 1207 Fruit Street) abatement/mitigation measures, if any, associated with was also evaluated as part of the Centerline project and the proposed project. Because federal and Caltrans it was concluded that the property does not appear to oversight is involved, the report will be prepared in meet the criteria for listing on the National Register of accordance with procedures specified by FHWA in Title Historic Places (NRHP) or the California Register of 23, Section 772 of the Code of Federal Regulations (CFR) Historical Resources (CRHR), and has not been (23 CFR 772) and the Caltrans Traffic Noise Analysis designated as historic by the City of Santa Ana. No Protocol (Protocol). other resources were identified that required evaluation within what would be the anticipated APE for the ICF Jones & Stokes will conduct a site visit to identify proposed project. It was noted that the area along noise sensitive land uses and other features of the Santiago Street to the south of Santa Ana Boulevard has project area relevant to the noise study. 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