75A - PH BRISTOL ST MEMORY LN PROJECT

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ENVIRONMENTAL IMPACT REPORT ADDENDUM Bristol Street and Memory Lane Intersection Improvements — Project No. 17-6883 1.0 INTRODUCTION This Addendum has been prepared in accordance with the California Environmental Quality Act (CEQA), as amended, to evaluate the potential environmental impacts of the proposed changes to the widening of Bristol Street, from Warner Avenue to Memory Lane as proposed in the Project Final Environmental Impact Statement/ Environmental Impact Report No. 89-01 (FEIS/EIR) approved in 1990 (FHWA-CA-EIS-89-01-F; State Clearinghouse [SCH] No. 87071509). This Addendum focuses on the intersection of Bristol Street and Memory Lane (the Project), situated in the northern segment of the Bristol Street Widening Project. This Addendum provides an assessment of potential environmental impacts associated with minor design modifications and the issues of climate change and tribal cultural resources which were not specifically addressed in the previously certified FEIS/EIR. Design modifications to the Project, since approval of the 1990 FEIS/EIR, that are addressed in this Addendum include the following: The original approved 1990 FEIS/EHL proposed the same intersection lane configuration as that proposed. As shown on Exhibits the 1990 FEIS/EIR considered a 117 -foot ROW width in order to accommodate the additional third through lane, specifically for the southbound travel lane. However, no specific take of adjoining properties was acknowledged although the existing ROW is only 100 feet. Thus, the Project changes clarify that in order to accommodate a third -through lane, the Project requires to widen the existing street right-of-way (ROW) width of 100 feet to 111 feet, with the street section width from 84 feet to 95 feet, and the partial acquisition of three properties. Although the proposed lane configuration was analyzed in the 1990 FEIS/EIR, necessary partial ROW acquisition to accommodate this configuration was not considered. Proposed ROW acquisition would be required on the west side of Bristol Street, north of the intersection of Bristol Street and Memory Lane. Refer to Sectionl.4.2. Proposed Property Acquisition, for a detailed description and mapping of these new areas of acquisition. These Assessor Parcel Numbers (APNs) include 002-261-06, -29, and -30. Areas of proposed ROW acquisition consists of vacant land, ornamental landscaping, and areas of paved driveway; no modification/demolition of habitable structures would be required as part of these new partial acquisitions to accommodate the Project. The Project would also accommodate a bike lane and relocate the existing perimeter fencing along Bristol Street and may include an extension of the existing storm water pipeline system (located on the eastern side of Bristol Street) through a new lateral connection and new catch basin at the Project site. Additionally, the topics of greenhouse gas (GHG) emissions and tribal cultural resources were not specifically identified in the previously approved 1990 FEIS/EIR as these topics were not a subject matter that required evaluation pursuant to CEQA at that time. As such, this Addendum analyzes the effects of GHG emissions associated with construction and operation of the proposed Project, as well as the Project's potential to affect tribal cultural resources. This Addendum to the previously certified 1990 FEIS/EIR has been prepared because Project -related modifications to the Bristol Street alignment do not trigger the need for further environmental analysis in a Subsequent or Supplemental EIR under the requirements CEQA (refer to CEQA Guidelines Sections 15162 and 15163, respectively). 1.1 PURPOSE OF AN ADDENDUM Under CEQA, when an EIR has been certified for a project, no Subsequent EIR may be required for that project unless the lead agency determines, based upon substantial evidence, that one or more specified circumstances has occurred. Only if one or more of the following circumstances arises is a Subsequent EIR required, pursuant to CEQA Guidelines Section 15162: Draft I November 2017 1-1 Introduction 75A-16