University of Oregon North Campus Conditional Use Permit Project <br />Riparian Assessment and Management Report <br /> <br />property as part of the EWEB Riverfront Mater Plan that could be useful for revegetation and <br />habitat enhancement. General standards for planting recommendation include the following: <br />Areas adjacent to the OHWM should be planted with native species able to withstand the <br />pressures of high water flows and act to slow the speed of water. This area should also <br />be managed for plant species providing abundant shade in order to cool water and <br />provide attractive habitat to native wildlife. <br />Upper- and middle-bank habitat should be planted with native species that provide <br />habitat value for birds and pollinators in order to increase populations in upland areas. <br />Upland areas should be planted with native species that attract native pollinators and <br />songbirds. Signage about native pollinator and songbird habitat can provide educational <br />opportunities for recreationists. <br />Wetland habitat should be planted with native species tolerant of wetter conditions in <br />the winter and drier conditions in the summer. Bioswales and other stormwater facilities <br />used to treat runoff from streets and rooftops should be planted with native species that <br />provides little attraction for wildlife. These facilities may carry polluted water and contain <br />sediments with high levels of toxic materials, hence, they could be detrimental to wildlife <br />species. <br />Any degraded riparian or wetland area within the project corridor should be restored and <br />o <br />enhanced. <br />Erosion Control: <br />An Erosion and Sediment Control Plan (ESCP) should be developed and implemented to minimize <br />o <br />riparian habitat impacts during site development activities. <br />Erosion and sediment control measures (i.e., sediment fence and compost berms) should be <br />o <br />installed as necessary during site development to prevent soil erosion and increases in stream <br />turbidity. <br />Promote Biodiversity: <br />Increase species biodiversity by using a multi-layered native plant palette that provides structural <br />o <br />diversity through a planned succession of understory, middlestory, and canopy level species. <br />Promote habitat elements such as snags, leaf litter, backwater microhabitats, fringe wetlands, <br />o <br />and large woody debris that are attractive to native wildlife species. <br />Remove concrete riprap along the shoreline of the Willamette River to enhance fish habitat. <br />o <br />Repair or replace failing or aging culverts within the Millrace Slough with structures meeting <br />o <br />Oregon Department of Fish and Wildlife fish passage criteria. <br />Protect areas of minimal disturbance within the Setback (i.e., use limitations or restrictions) in <br />o <br />order to maintain biodiversity as well as the functions and values essential to the riparian corridor. <br />. <br />Avoid impacts to any plant species listed as threatened or endangered by ODA or USFWS <br />o <br />Recreation: <br />Enhance recreation opportunities by providing a scenic riparian aesthetic for path users. <br />o <br />Construct low impact trails using pervious surfaces. <br />o <br />Minimize trail widths and associated cleared areas to maximum extent practicable. <br />o <br />Discourage creation and use of non-sanctioned trails and footpaths with signage. <br />o <br />Remove hazard trees and replant with native plant species with similar canopy coverage. <br />o <br /> <br /> page 13 <br /> <br />