Lower Gales Creek Enhancement Plan Knotweed and Ivy Mapping and Report

Published 2006
by Jackie Dingfelder & Jason Schmidt for Three Rivers Land Conservancy

The Tualatin River Watershed Council (Council) prepared a Lower Gales Creek Habitat Enhancement Plan (Plan), outlining five years of recommendations for projects in four miles of lower Gales Creek and two miles of Gales Creek tributaries. The purpose of the Lower Gales Creek Invasive Species Mapping Project is to help identify priority areas for stream habitat enhancement projects that will benefit winter steelhead and other anadromous fish species in Lower Gales Creek. 

The Three Rivers Land Conservancy (Three Rivers) was hired to conduct a riparian survey to quantify and locate invasive plant species Japanese knotweed and English Ivy in the four-mile project reach of Lower Gales Creek watershed (river miles 10-14). Three Rivers is a non-profit land conservation organization dedicated to preserving natural areas, scenic and recreation areas, wildlife habitat and historic lands in the Portland metropolitan area.