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City of Pleasanton—Hidden Canyon Residences and Preserve Aesthetics, Light, and Glare Draft EIR 3.1-6 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-01 Aesthetics.docx Scenic Vistas Impact AES-1: The proposed project would not have a substantial adverse effect on a scenic vista. Impact Analysis Construction For the purposes of this analysis, a significant impact would occur if project construction would result in substantial adverse effects on the view of a scenic resource/route as defined by the General Plan or General Plan FEIR. During construction, construction vehicles and staging would be present on the project site. However, construction equipment would not block any scenic resources or routes in the vicinity and construction would be temporary. As such, impacts would be considered less than significant. Operation For the purposes of this analysis, a significant impact would occur if project operation would result in substantial adverse effects on the view of a scenic resource/route as defined by the General Plan or General Plan EIR. Once constructed, the proposed project would introduce 28 new single-family homes and associated roadways and infrastructure on a currently undeveloped project site. Development of homes could interrupt scenic vistas from within and adjacent to the project site. However, such interruptions would be intermittent, and the majority of the site is proposed for open space dedication. Furthermore, the substantial portions of the site that are proposed for dedication to EBRPD would continue to provide visual corridors to surrounding scenic vistas. As such, impacts would be less than significant. As previously mentioned, the nearest scenic highway to the project site is I-680, located approximately 1.6 miles northeast of the project site. Additionally, I-580 is an Eligible State Scenic Highway approximately 0.32 mile north of the project site.3 Because of distance and existing intervening development, the proposed project would not be visible from either scenic route. The General Plan recognizes arroyos, ridge views, hillsides, and open space areas as general scenic resources. Scenic resources visible from the project site include hillsides, ridgelines, and open spaces. To the north, scenic resources include background views of the Blackhawk Hills, part of the Diablo Range, and Mount Diablo. To the east, scenic resources include open spaces. To the west, scenic resources include background views of wooded hillsides and ridgelines. These scenic resources are primarily part of background views seen at a distance from the project site. Further, the proposed project would adhere to the Municipal Code and all applicable laws and regulations and development would be located within a lower topographic portion of the project site. The proposed project would not introduce development on hillsides in a manner that could obstruct views, and would maintain a majority of the project site as open space. 3 City of Pleasanton. 2015. Pleasanton General Plan 2005–2025. January 6.