2017-046 - Approving Addendum Nos. 1 and 2

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Santa Ana/Garden Grove Fixed Guideway Project Addendum The Project footprint and Area of Potential Effect (APE) for Cultural Resources study were also updated to encompass the modifications as well as the anticipated revised construction limits of the Project. Physicaiimprovemen[s: The modifications would result in the following physical improvements: • Concrete Box Girder bridge at Westminster Avenue, • Construction of a double track bridge across the Santa Ana River (SAR) north of a historic bridge location, • Adding a bridge span on the west bank of the SAR, behind an existing levee to accommodate an undercrossing for the SAR Trail and Bikeway (and Orange County Flood Control District (OCFCD) maintenance road. Implementing a slight raise to the bridge (approximately one foot) to keep the pathway higher than the water surface elevation in the river to allow for positive drainage to the river, • Repositioning the double track alignment within the PE ROW, • No Willowick Station Stop. This station stop is associated with future development. At this time there is no development that is accessible to this station stop, • Repositioning of side platforms to center platforms at Harbor Boulevard, Fairview Street (both west side), and Raiff Street in the PE ROW segment of the Project alignment, • Repositioning westbound platform at Ross Street from farside to nearside, and platforms at Broadway and Main consolidated and moved to farside Sycamore Street, • Placement of single crossovers on both sides of the Maintenance and Storage Facility (MSF) with a revised layout for the MSF, added crossovers on both sides of downtown couplet, and replaced the tail track beyond the SARTC platform with a double -crossover before the SARTC platform, • Restriping Santa Ana Boulevard from Flower Street to Raiff Street from a four -lane to a two-lane street with a raised 4 -ft median, • Restriping westbound Santa Ana Boulevard from French Street to Flower Street from three -lanes to two - lanes and a protected bike lane on the north side of the street, • Relocation of the traction power substations (TPSS) to the PE ROW and publically owned properties and reducing the number of TPSS from six to four, • Re-evaluation of the scope of drainage improvements to mitigate additional surface storm water drainage needs generated by the Project, or change in drainage patterns caused solely by the Project, • Changing from single contact wire in the PE ROW to a two -wire catenary to enhance operations at higher speed, and 4 I age 1170726.1 Project Description Update Approved Projectin ID 2015 EIR 30% Design - May 2016 Figure Modification of scope of drainage improvements to rely less on connections to storm drain network and use Appendix P to the EIR, the Drainage Technical surface conveyance in streets to maintain existing 13 Report, indicate storm drain improvements on drainage patterns to the maximum extent practicable 11 many streets outside the project alignment. while addressing surface storm water drainage needs generated by the Project, or change in drainage patterns caused solely by the Project. 14 Single contact wire in PE ROW. Two -wire catenary in the PE ROW. 12 Underground fiber optics cable (communications) from 15 No provision for underground fiber optics cable SARTC to OCTA Garden Grove Bus Annex north of PE 1 ROW, approximately 1500 feet west of Harbor Blvd The Project footprint and Area of Potential Effect (APE) for Cultural Resources study were also updated to encompass the modifications as well as the anticipated revised construction limits of the Project. Physicaiimprovemen[s: The modifications would result in the following physical improvements: • Concrete Box Girder bridge at Westminster Avenue, • Construction of a double track bridge across the Santa Ana River (SAR) north of a historic bridge location, • Adding a bridge span on the west bank of the SAR, behind an existing levee to accommodate an undercrossing for the SAR Trail and Bikeway (and Orange County Flood Control District (OCFCD) maintenance road. Implementing a slight raise to the bridge (approximately one foot) to keep the pathway higher than the water surface elevation in the river to allow for positive drainage to the river, • Repositioning the double track alignment within the PE ROW, • No Willowick Station Stop. This station stop is associated with future development. At this time there is no development that is accessible to this station stop, • Repositioning of side platforms to center platforms at Harbor Boulevard, Fairview Street (both west side), and Raiff Street in the PE ROW segment of the Project alignment, • Repositioning westbound platform at Ross Street from farside to nearside, and platforms at Broadway and Main consolidated and moved to farside Sycamore Street, • Placement of single crossovers on both sides of the Maintenance and Storage Facility (MSF) with a revised layout for the MSF, added crossovers on both sides of downtown couplet, and replaced the tail track beyond the SARTC platform with a double -crossover before the SARTC platform, • Restriping Santa Ana Boulevard from Flower Street to Raiff Street from a four -lane to a two-lane street with a raised 4 -ft median, • Restriping westbound Santa Ana Boulevard from French Street to Flower Street from three -lanes to two - lanes and a protected bike lane on the north side of the street, • Relocation of the traction power substations (TPSS) to the PE ROW and publically owned properties and reducing the number of TPSS from six to four, • Re-evaluation of the scope of drainage improvements to mitigate additional surface storm water drainage needs generated by the Project, or change in drainage patterns caused solely by the Project, • Changing from single contact wire in the PE ROW to a two -wire catenary to enhance operations at higher speed, and 4 I age 1170726.1