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Middle Amazon Creek <br />• To allow adequate conveyance, NO plants should be near bridges. Leave a distance of <br />approximately one bridge width on either side of each bridge unplanted. Leave 20 feet <br />unplanted centering on each outfall. <br />• Black cottonwood should not be planted near structures, facilities, or gathering places, <br />because older trees have a tendency to shed branches and frequently fail. Similarly, as <br />trees mature they may need to be removed in areas where they put humans at risk. <br />However, in some areas, it is desirable to maintain a younger, vigorous stand of <br />cottonwoods and standing snags, that pose little risk to humans, to serve as habitat trees. <br />• Along the fairgrounds, the north bank can be planted, while the south bank should remain <br />open to allow for potential future widening. Passive revegetation of the south bank should <br />be permitted, but willow cuttings should be used to plant the toe of the south slope to <br />provide for cover until any future widening occurs. <br />• Creek widening may also be feasible through Westmoreland Park, but there are no <br />established plans at the time of this report. <br />Cluster diagram example (to accommodate mowing requirements) <br />Top of Bank — < 10 -20' > — < 10 -20" <br />Upper Bank <br />Lower Bank <br />Creek <br />19 <br />Plants <br />Total <br />Number <br />Plants <br />Planting <br />Latin Name <br />Common Name <br />Qty <br />of plants <br />spacing <br />Zone <br />Both <br />per <br />within <br />Banks <br />Clusters <br />Clusters <br />Fraxinus latifolia <br />_.......... .._ .... -- - - --- - - - - -- --- <br />Oregon ash <br />_....... 40 <br />2 -4 <br />__.- ....._.._._.. _ <br />10' <br />._._ - - .- ... -.. <br />1 & 2 <br />i <br />P p o nder osa — <br />Ponderosa pine — <br />4 <br />- -.._. <br />_...._. -_. 1 <br />----- ... ................... - <br />— 1 <br />a, <br />Populus balsamifera ssp. <br />Black cottonwood <br />8 <br />1 <br />- <br />2 <br />tricho. <br />Salix lucida ss . lasiandra <br />Pacific willow <br />20 <br />1 -2 <br />10' <br />1&2 <br />Amelachier alnifolia <br />Western <br />6 <br />1 <br />ser <br />Berberis aquifolium...._.___ - .._ ...................._ <br />Tall Orego n...grape <br />30 <br />— ....... _3__....._...._.__..........._5 <br />� ........._..__1..._ <br />&...2..... <br />Crataegus <br />Blac hawthorn <br />15 _...._........_.._......_....----- <br />3 .....-- <br />Ribes sanguineum <br />.............................................. <br />Red flowering <br />30 <br />3 <br />..- _..m..........�� <br />4' <br />—. __?.... <br />1 <br />currant <br />U, <br />................ ----.._..---- ... _ .......... ......... .._ ........ - ............ _.._....... — <br />Rosa nootkana <br />_ ................_............. -- <br />Noo tka ro <br />- _..._..... - ..... <br />12 <br />__ ...... . ................ - -_. _ <br />3 <br />- — <br />._ .................. _ <br />4' <br />-.._.._... ............................... <br />1&2 <br />_ _ ............. _ — - . <br />Salix hookeriana <br />_._... <br />Hooker's willow ._..... <br />�__...._- <br />25 <br />- -- <br />- <br />......._...................... <br />- <br />................._......_ -_.._. <br />_ 3 <br />_... - -- ._........_..__..._ .......................................................... .........._.................... <br />Salix ................................................ <br />_— ........ ------ <br />............................... <br />........................._......._.._..... <br />....................._..._._._. <br />Symphoricar us albus <br />_..........................- -- — - -- ......._..._..........._..__ <br />Snowbe <br />50 <br />5 <br />5' <br />1&2 <br />Total <br />265 <br />19 <br />