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�� H <br /> � .� <br /> t"y y3 ' <br /> H� M <br /> FC f] <br /> '�tl� A1 ' <br /> Hy � � <br /> �p i <br /> H <br /> OM <br /> ��g <br /> >H <br /> rey H� � The northwestern wetland will be excavated using a front <br /> �y� loader. The material , including plant life and mud sediments, <br /> �� � will be excavated to a depth of 1 foot or to the point where <br /> r� the impact of wetland conditions is no longer existent. This <br /> o �' marar;al wilLbe_mo.Xed to the newly created _wetland and_ placed <br /> into those areas that_ are at elevation. 562 and._lower. (This <br /> will not include the existing wetlands that are to be <br /> retai�ed . ) The material will be spread to a depth of 6 <br /> inches . It is anticipated , based on past experiences in <br /> Oreqon, and from data in publications , and from reports at <br /> i restoration conferences, that this will provide a seed bed <br /> both f.or plant species and the benthic macro and micro <br /> � organisms that are colonizing the existing wetlands. The <br /> j regrading wi12 bring the site to the grades identified on SD 7 <br /> (grading plan) . <br /> � � I A b�rm or overflow structure will be constructed at the <br /> ��� southern edge of the exicting southeastern wetland. It will <br /> � I be constructed between the existing wetland and the invert of <br /> � ' �, the existing culvert� that goes under Casino Rcad. The �er.m <br /> ��' � will be designed to maintain. the. water level_ in the retention <br /> � pon�at-elevation 563 . This will create a standing water area <br /> � I <br /> � ' � varying in depth from 5 feet at the lowest point in t e <br /> 1 ' wetland to 1 foot throughout much of the regraded area <br /> including the moat effect. The moat effect created by the <br /> �' water will place a physical separation between the plant <br /> �' buffer and the center core of the wetland. <br /> �' 7, Vegetation. <br /> ' The vegetation will be a mix consisting oE a forested <br /> � shrub/scrub border surrounding the entire site with a mixed <br /> � forested shrub/scrub and emergent marsh/buttercup components <br /> �� in the center core of the wetlands. The exisLing wetlands <br /> that remain consiet of salmonberry , black cottonwood and <br /> Oregon ash with mixed patches of slough, sedge, lady fern, and <br /> buttercup. <br /> The outer 25 feet will be replanted with native red <br /> alder , black cottonwood, and shrub species including red- <br /> osier dogwood and other available plants as located during the <br /> 4 <br />