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<br />Natural and beneficial Flood Plain Values <br />--~--------------~---- <br />Flood plains along the various tributaries contain areas of irrigate:] <br />pasture and hayland intocrspersed with areas of natural vegetation. The <br />flood plain vegetation consists of a variety of forbs, grasses, sedges and <br />rushes interspersed with cottonwoods, will~ <HId siberian elm. The <br />meandering channel provides an interesting diversity tn landscape and <br />vegetation. This diversity emances the visual aestheties and wildlife <br />habitat values in the area. <br />These flood plains support a variety of wildlife species such as: <br />mule deer, coyote, cottontail, red-winged blackbird, blue herron, song <br />sparrow, black-headed grosbeak, red-tailed hawk, golden eagle, bald eagle, <br />canada goose, mallard and many other species of wildlife. These repllrian <br />areas are very important in the arid regions of Colorado. The proximity <br />to water and rotult vegetation supported by the water regime attract OIlre <br />species of wildlife to this habitat type than any other in western <br />Colorado. <br /> <br />RUATlll fU.XJ\.l SlUDtES <br /> <br />The Corps of Engineers, Sacramento District, prepared an totern..l <br />Official Mernorandtmt Report "Flood lnsunmce Study Hydrology, Garfield an:! <br />Mesa Counties, Colorado" dated Noverrber 1975. This was a relatively broad <br />study that included drainage area \'8. cubic feet pe, second per square <br />mile envelope curves. The curves Vlere intended for estirnatirg peak <br />discharges on streams in Ga,field and Mesa Counties, Colo,ado, for flood <br /> <br />insurance purposes. <br />The Corps of I'llgineers, Sacramento Distdct, prepared a flood plain <br />information report "Colorado River and Rifle, Gove!:l'1llent, and Hubbard <br />Gulch creeks" (Apr 1973). The Corps is curr~tly involved in an <br />additional study of the Colorado River Main Stan that extends beyond the <br />lirnits of this 1973 study. <br /> <br />The Soil Conservation Service carried wt a Flood Plain Management <br /> <br />Study on Parachute Creek and Roan C,eek (Aug 19115). The hydrology for the <br />study included the development of a discharge-frequency-drailUlge area <br />regional curve that hM boom ueed in this Colo,ado River Tributaries <br /> <br />Study. <br />The Federal Emergency Management Agency published a flood insurance <br />study for Garfield Goulty, unincorp:>rated areas (Jan 3, 1986). <br /> <br />6 <br /> <br />7 <br />