Attachment B <br />CAMERON MCCARTHY <br />LANDSCAPE ARCHITECTURE & PLANNING <br />MEMORANDUM <br />To: Gabe Flock, Principal Planner <br />Jeff Gepper, Senior Planner <br />From: Colin McArthur, AICP <br />Date: December 22, 2022 <br />Subject: Willamette River Greenway Code Amendments (CA 22-1) <br />Tree Preservation & Access Standards <br />INTRODUCTION <br />The intent of this memorandum and supporting figures is to expand upon and illustrate how the modified Tree <br />Preservation and Removal Standards at EC 9.6885 and the Willamette River Greenway Access Standards at EC <br />9.8812(4) function to enhance, preserve, and protect trees within the Willamette River Greenway and, to expand <br />public access to the bicycle and pedestrian path network to and along the river. <br />TREE PRESERVATION/MITIGATION FIGURE <br />The proposed code amendments modify the Tree Preservation and Removal Standards at EC 9.6885 to apply to <br />land use applications within the Willamette River Greenway. EC 9.6885(2)(e) is amended to establish three Tree <br />Preservation and Removal Zones (Zone 1, Zone 2, and Zone 3) with minimum preservation and maximum <br />mitigation. These zones are designed to have higher levels of tree preservation within closer proximity to the <br />Willamette River, which is a similar model to the previously approved tree preservation standards for the South <br />Hills Area. <br />As the standards include new requirements, the attached Tree Preservation and Mitigation Example Site (see <br />Figure A) was created for the purpose of illustrating how the proposed preservation and mitigation standards <br />would operate in the context of a land use application for a Willamette River Greenway Permit under the new <br />clear and objective standards. As proposed, EC 9.6885(2)(e)1. requires a Tree Preservation and Removal Plan that <br />includes the following: <br />• A table listing all significant trees on the development site, along with their size, species, and status <br />(preservation, removal, or mitigation); <br />• A site plan, showing tree locations, sizes, and status; <br />• Any existing and proposed development; and, <br />• Lot or parcel boundaries. <br />CARURWPkCARTHY 1 <br />