Willamette River Greenway Code Amendments <br />Attachment C <br />site is less than 20,000 square feet. <br />2. Except as provided in subparagraph 5., f-Pive or fewer significant trees exist <br />on the development site prior to development. <br />3. Except as provided in subparagraph 5., tThe development site is zoned R-2 <br />Medium- Density Residential, R-3 Limited High-Density Residential, R-4 High <br />Density Residential, GO General Office, C-2 Community Commercial, or C-3 <br />Major Commercial zones. <br />4. Notwithstanding subparagraph 1., development sites that include property <br />at or above 900 feet elevation are subject to the requirements of EC <br />9.6885(2), regardless of the area of the development site. <br />5. Notwithstanding subparagraphs 1. through 4. above, any portion of a <br />development site located within Willamette River Greenway Tree <br />Preservation Zones 1-3. as depicted on Figure 9.6885(2)(e). shall be subiect <br />to the reauirements of EC 9.6885(2). <br />(dJ Tree Preservation Requirements. Unless adjusted per EC 9.8030(13), significant <br />trees must be preserved in accordance with the requirements of Table <br />9.6855(2)(4j e. Minimum preservation is based on the total existing Diameter <br />Breast Height (d.b.h.) of significant trees within each specific location category <br />prior to development. Maximum mitigation is the percentage of the minimum <br />preservation that may be mitigated according to subsection 2. below. <br />Table 9.6885(2)( 4) Tree Preservation and Mitigation <br />Minimum <br />Maximum <br />Location Category <br />Preservation <br />Mitigation <br />Outside the South Hills Area <br />40% <br />100% <br />Within the South Hills Area, between 500 feet and 900 feet elevation <br />50% <br />50% <br />Within the South Hills Area, at or above 900 feet elevation 50% 0% <br />9.6885(2)(e)) , in <br />50% 0% <br />Willamette River Greenway Tree Preservation Zone 2 (See Figure 50% 50% <br />9.6885(2)(e)) <br />Willamette River Greenway Tree Preservation Zone 3 (See Figure 40% 100% <br />9.6885(2)(e)) <br />A Tree Preservation and Removal Plan is required except as provided in EC <br />9.6885(2)(ed) or EC 9.6885(2)(ed)3. The plan must be prepared by a certified <br />arborist, licensed landscape architect, licensed engineer, or licensed surveyor <br />and shall provide the following: <br />a. A table, organized by the location categories listed in Table <br />9.6885(2)(de), listing all significant trees on the development site and <br />including the following information for each listed tree: <br />Draft: December 1, 2022 (Minor Revisions January 20, 2023) <br />Page 6 of 25 <br />Page 24 of 43 <br />