Agmt21 Environmental Science Associates

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Proposed Work Program June 2021 City of Redwood City / Gatekeeper Projects Subsequent EIR 7 environmental science associates proposed changes as it relates to effect on scenic vistas and scenic resources, conflicts with zoning and regulations regarding scenic quality, light and glare, and shadows will be addressed in the SEIR. Optional Task 1 – Visual Massing Illustrations / Shadow Analysis for 651 El Camino Real, 2300 Broadway (including 609 Price Avenue), and 1900 Broadway Prevision Design’s optional scope of work in full is included in Appendix A. Under this optional task, Prevision Design will prepare visual massing illustrations and shadow analysis for three Gatekeeper projects: 651 El Camino Real, 2300 Broadway (including off-site residential housing at 609 Price Avenue), and 1900 Broadway. Visual Massing Illustrations: Prevision Design shall use the 3D model developed for the shadow analysis (described below) for the program-level visual simulations model. Prevision Design will mockup potential viewpoints using web-based Google Earth and/or ESRI services to select potentially appropriate viewpoints for visual simulations. These will be presented for review and selection prior to site photography. Task assumes preparation work, attendance at a working meeting, and production of a viewpoint map. Three views per project assumed (12 sims total). Prevision will conduct site photography at predetermined locations to generate existing condition views for use as the base of visual simulations. Prevision Design will select and present the best viewpoints + alternates from all the locations photographed and present for review and selection of the final base viewpoints. Using the approved viewpoint photos, Prevision will align the 3D model viewpoint to match the perspective and scale of each viewpoint photo. Using conceptual rendering techniques Prevision Design will generate draft photo simulations of the project in each of the viewpoint’s context for review and comment. Upon approval of these draft views, final views will be generated which will include fine tuning, and Photoshop work to clean up foreground and background details and add additional site context, as necessary. Shadow Analysis: Prevision Design shall gather urban 3D model data, along with a model of the proposed projects to build a virtual 3D environment which will used to analyze the total shadow effects that would be created by the addition of the proposed projects to the existing conditions. Pursuant to the provisions of the DTPP Final EIR, Prevision Design will evaluate the: shadow effects of the proposed three projects, if any, on: 1. The 10 open spaces identified by the 2010 EIR (as applicable). 2. Façades of residential structures adjacent to the DTPP areas. 3. Façades of 22 potentially affected historic structures identified by the 2010 EIR (as applicable). The analysis will focus of total shadow cast on these elements at 12 noon on the Spring Equinox (3/21) and determine if the total shading is greater than 50 percent at that time. Optional Task 2 – Update Existing Conditions Analysis Under this optional task, Prevision will develop updated graphical analyses of the shadow effects of all current/existing development on open spaces, historic facades, and residential structures adjacent to the DTPP/NDPP areas Cu ltural and Historic Resources (including Paleontological and Tribal Cultural Resources) Historic Resources: The DTPP area contains a variety of individual designated and potential historic resources, as well as historic districts. Consistent with the DTPP Final EIR, impacts on historic resources as a result of additional development on properties within the DTPP area would be significant and unavoidable. A variety of mitigations including compliance with the Secretary of the Interior’s Standards for the Treatment of Historic REV: 06-23-21 MI ATTY/AGR.2021.150/Environmental Sciences Associates (Gatekeeper Projects) (Page 17 of 58)