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i <br /> I5.6.2 EnhencemerK d Powder MAI Creelc <br /> I Powder MN Geek ebove Seaway Boulevard wNl be etaW@ed and enMr�ced. Eroded benke wN bs <br /> eteW@ed and the coures d danr�el lla��wNl be directeJ wkh anchored lopa end eturtips. Rlpnp wN <br /> only be used et the co�lluence wlth the conatnicted etream. Poole ard rMllee wAI Ge reeefadbl�ed a <br /> rehebllketed. The aubet►ate wAI be deaned d eedknent a aupplen�ented ro provide heWtat far <br /> ` im�ertelxetee end Nah. Cover for 8ah end shede to Fielp co�trd water temperettKee wN be enhenced <br /> by plecert�erx d Instream etructurea end plarrtirp d ehn�a end treee elorq the etresm. <br /> ITho fceus of the enhencement stnicturea on Powder MNI Geek wll be to eta W ize the stresm benks <br /> to leseen the eedlmeM loed Irrto the etream and protect the wetland. A eecordery ponl la to e�hance <br /> � scour of the streem bottom to provide more pool erea wMh velocky breaks fa protection hom hiph <br /> velocity waters. Once the benke ere stebNized, the wbatrete wN be deened end other hsbNet <br /> modNketiona may be neceasery to enhance the poaeiWMlee d e ael(-euatalninp Hah populetbn. This <br /> ' portlon hee eortie pote�lal to support coho selmon es well ea cutthroat trout. UntA peeaepe probleme <br /> below the elte are addressed, cunhroet trout ahoUd be the apeciea planted In thia portbn d Powder <br /> MNI Creek. <br /> � The erpineered atnx:turea fa benk slebNl:etlon ehovm In the oonetructlon drewkqe ere propoeed <br /> fa the upper sectlon d the stream end in pertk�uler the wert benk upotream d the coMluence d the <br /> ' co�etnicted stream. The aet d wel�a neer the top of the etresm w11 eerve to create pod heWtet tf►et <br /> wNl dlaelpete hiph Ilowa end meinteln water depth dwlnp low Ilowa The dellectors end debrb (troee) <br /> placed In the uppe►sectlon wNl enhence etreembed ecax croetMg�needed pool/backwater areet <br /> ' end direct the rtreamllow IMo old stream cherw�els awey hom the wetland. There ttwiW be no�eed <br /> (a f�eevly enpineered etnicturea below the mouth d the co�etn�cted streem as tMa heWtet Is In <br /> relatNely pood cadNion. The enher�cemerK d thM downrAream eectlon wIN aN be done by hend ard <br /> ' k mey be accompllahed by usirp exlating debrie/lope. Fa ezample,an exletlrp lop can be pleced M <br /> en angle to the benk, where benk erosbn is e problem, and anchored into plece. <br /> � 8.0 PERFORMANCE HTANDARDS <br /> � A aet d periorma�ce standaMe coneapondkp to the eleted mftipetlon poala have been estaMlahed. <br /> Perlom�ence stendards apply both to co�atniction and operetion d propoaed mltipatlon ereas. <br /> � Standarda fa plaminga ere designed to be me1 wlthin b yeare aher co�atnx;tion. By monitainp proJect <br /> perametera end compering monfloring results to perfortnence aterdarda a detertninetion can be mede <br /> regarding the auccesa of proposed mNigetlon end the need to ImplemeM coMlnpencies. <br /> ' 6.1 OVERVIEW <br /> ' Pertortnence standarda comrtw::�[o ell mftipetlon erees indude: uae d otdy nethre a natu►alized <br /> non•ImasNe plarrt speclea; deir.;x�stratlon d 100 percent tree and shrub plarKinfl eurvlvorahip durkp <br /> the Nrel year ea wertamed �y the landecape contrecta; 90 percent cover d underotory end benk <br /> ' vegetation; end an everape 80 percent eurvhnxship retes fa woody plarMinps ove� Me yeare. <br /> Performance ata�darda sp:cMic to certaln crkir,al parametera are pNen below. <br /> ' <br /> ' w.rw.�inrw.w� �e <br /> DAMES 6 P400RE <br />