2017-046 - Approving Addendum Nos. 1 and 2

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Santa Ana/Garden Grove Fixed Guideway Project Addendum #2 2. BACKGROUND The Project is an approximately 4 -route mile modern streetcar line that will connect the Santa Ana Regional Transportation Center (SARTC) to Downtown Santa Ana and a new transportation hub located near the intersection of Harbor Boulevard and Westminster Avenue in Garden Grove. Construction and operation of the Project (the adopted Locally Preferred Alternative, or "LPA") was approved by the Federal Transit Administration (FTA) in a Finding of No Significant Impact (FONSI), dated March 10, 2015 based on the findings of the Revised Environmental Assessment (EA) (January 2015), pursuant to the National Environmental Policy Act (NEPA). The City of Santa Ana certified the EIR (State Clearinghouse #2010051060) in January 2015, which was subsequently adopted by OCTA. OCTA is a CEQA "Responsible Agency" as defined by CEQA Guideline 15381. Pursuant to CEQA Guideline 15381, "Responsible Agency" means "a public agency which proposes to carry out or approve a project, for which a Lead Agency is preparing or has prepared an EIR or Negative Declaration." The approved Project was based on a conceptual level of engineering. Subsequent to Project approval in 2015, OCTA has taken the lead in advancing the design and implementation of the Project to 30% design. As part of this design phase, OCTA proposed some modifications to the Project as it was defined and analyzed in the EIR. The modifications are comprised of physical and operational improvements, and are partly derived from value engineering and risk workshops conducted in 2015, as well as design coordination with OCTA's partner cities and stakeholders. An Environmental Re-evaluation and CEQA Addendum was prepared and presented by OCTA staff to the OCTA Board of Directors in July 2016. The Project has since advanced to the completion of 60% Design in December 2016. The 60% design includes minor physical and operational modifications due to design refinement for the Project and consideration of risk register updates performed by the Project team in a workshop conducted in 2016. The design modifications at 30% design and 60% design are not anticipated to result in changes to the maintenance plan for the Project. 3. DESCRIPTION OF DESIGN MODIFICATIONS The following describes the proposed design modifications that are the basis of evaluation in this Addendum #2. Table 1 provides a listing of design updates comparing the description of Project features in the EIR, the revised description of Project features resulting from design modifications at the 30% design (which was addressed in an EIR Addendum dated June 2016, hereafter "Addendum #1")), and additional modifications from the 60% design which are the basis of analysis in this Addendum #2. The corresponding figures for each modification as a result of advancing preliminary engineering (30% design) to 60% design are referenced in Table 1 and are attached to this Addendum #2. Figure 1A provides an overview of the proposed traffic signal prioritization areas. Figure 2A provides a figure of the proposed track shift. Figure 10A and Figure 10B depict the proposed relocated traction power substation (TPSS) unit 4 to SARTC. 21 Page 1170726.1