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<br />, <br /> <br />10 <br /> <br />Stu6y Reach Description <br />This floodpl"in studyencOfilpas5c, about 17 milc5 of the Roaring Fork <br />River beginning ~t a point approximately 4,000 fcct upstream above the <br />confluence with Haroon Creek. The study extends to the EJl)'na Bridge thilC <br />crOsoc, the .~na r i 09 Fork R i vo r at 8..,,, T t. In ddd I t Ion. Ih i 5 report Cove rs <br />Ma roan C reek from i 15 conf I uence wi th the Roar 1 ng For~ up, t ream for "bou ~ <br />2.5 miles. The Roaring Fork River in the Hudy re"ch averages about 70 to <br />80 feet wide, having a grade of approximately 0.012 feet per fool. The <br />streaCleha"ne; is generally st,)blcand arrr>oredwith round boulders ranging <br />in the6.inch to 15-inch diamelcr ,i>:e, Therc i1rc many riffles and rapids <br />with many shal\owpools along itscollrse. Several dozen irrigation ditches <br />divert fro," the Roaring Fork in thi s redch. Th~re are no across-the-r iver <br /> <br />dlyersion structures. <br /> <br />In mOot dredS, the river banks are well defined. The <br /> <br /> <br />bank, are often steep (over 45 degr",,,s) ~nd there is Ii tt Ie or no vegetat Ion <br />below the ~an annual high water mark. <br />To date only limited development has occurred In the floodplain area,. <br />In the lowe; study ~r"~ some. ranch homes and structures hav~ been bui I t ddja- <br />cent tC!or in shdllowfloodinqarea5. <br />Lazy Glen Trailer Court, located up.treamof the lIighw"y82 bridge, Is <br />on d n i storl c f i ""dp I a In. F I II and ~n'" I I d 1 kes have been p I aced to con tro I <br />fkodi"9. Oetalled dnaly~l. .hows th"t the smaller floods such J. the 5 C!r <br />IO-yc~r flo~d. would not flood any vurliun of Ld~y GI~rl but ,h~ IOO-year <br />flood would overflow into {I'e area at two point.. <br />As de.crlbcd above, the reMalrllng upstream reach of the study ~re" <br />i ~ l~rg~1 y cunflned wi thin wel I-defined natura I bank:;. On Iy one ranch <br />bulldingoccupie<; (he floodplain in the reach above the Lazy Glen Traiier <br />Cuurt. At a f~w locat lon<;, the valley lxlt tom wi dens out and \, used for <br />agricultural purpo.es. There i,agravelpitoperationmid<<ayupthe <br />yalleyiocatedadjacent to the river. <br />The following pictures.how the RoaringF()rkstre"mcharacterdt <br />several points. <br /> <br />Emma Bridge at Sta. 0 + 00 <br /> <br /> <br />Roaring Fork River upstream al Sta. 60 + 00 <br />