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17.1 Site Description(s) <br /> Sites E37 H (S Hills at Upper Owl Road); E37I (S Hills at St. Clair); E37J (S Hills at <br /> Lower Owl Road /Fox Hollow); E37K (S Hills at Canyon Drive /Fox Hollow), E37L <br /> (S Hills at Center Way); E37M (S Hills at Dillard); AMA -13 (Owl Road wetland) <br /> The sites in this analysis group are located within the south hills of Eugene, east of Willamette <br /> Street and west of Dillard Road. These stream corridors are remnants of a mixed <br /> deciduous /coniferous forest of Douglas -fir, Oregon white oak, ponderosa pine, bigleaf maple <br /> and Oregon ash. Structural and species diversity are generally high in most of these corridors. <br /> These corridors are generally characterized by steep stream gradients and /or steep surrounding <br /> topography. <br /> (1) South Hills at Upper Owl Road (E37H): <br /> This stream corridor (E37 H) begins at upper Owl Road, carries water from the steep <br /> surrounding slopes down to Donald Street. The majority of this site is located within the <br /> City -owned Spencer Butte natural area, part of the Ridgeline park system. The lower end <br /> of the site runs through land owned by the Huntington Heights Homeowners Association <br /> and the Woodridge Homeowners Association, and meets the end of Huntington Avenue. <br /> Most of the area surrounding the site is undeveloped. This is one of the more intact <br /> riparian corridors in the Inventory. The corridor has high species and structural diversity, <br /> and is dominated by native species, including Oregon ash, Douglas fir, vine maple, <br /> occasional black cottonwood, and native understory, such as osoberry and sword fern. <br /> The length of the corridor, and the fact that it abuts habitat preserve areas (Ridgeline Trail <br /> parcels), greatly enhance its value as habitat, and as a wildlife corridor from the ridge to <br /> lower elevation habitats. The site provides important habitat for amphibians and the more <br /> common resident and migrant songbird and mammal species. <br /> (2) South Hills at St. Clair (E37I): <br /> This site (E37 I) drops down from Fox Hollow Road following St. Clair Lane, and ends at <br /> the Pearl Buck School property. The upper portion of the site has been disturbed by <br /> driveway crossings and clearing of vegetation, but retains most of its riparian attributes, <br /> including a dense overstory of Oregon ash, bigleaf maple, and Douglas -fir. Small area at <br /> the upper end of the site supports wetland plants such as bulrush, indicating that the site <br /> has some wetland functions, though it was not mapped on the Local Wetland Inventory. <br /> At the lower end of the site, the corridor contains a greater mix of riparian and upland <br /> species, including filbert, Oregon oak, and some old growth Douglas -fir. Much of the <br /> corridor has a steep gradient and steep side slopes, making the corridor valuable for <br /> preventing water quality impacts from erosion in downstream portions of Amazon Creek. <br /> At the end of Mahalo Drive, the creek enters the piped stormwater system that empties <br /> into Amazon Creek. <br /> ESEE Analysis Page 4 <br />