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aec~nd. The flood insurance report floud pra2iles indi~ate that out <br />of channel flooding occurs in all streams on a regularly basis. The <br />paleohydrologic investigations and analyses of streamflow da~ta do not <br />support the frequent occurience of these high discharges. S:imilarly, <br />these investigatior~s do not support the occurrence of less frequent <br />flood discharges (1~0- and 500-year). DetaileQ~onsite paleoh~,~drologic <br />investigations in thesz tributaries and in other nearby repre:aentative <br />ba5lns an~ the development of regional flood-frequency ielatiuns <br />(based on a rainfall flood contributing area below 7,500 to 8,000 <br />teet) could imprave the flu~d hydrology in the~e baains. <br />The ar,site investigations also identifie~ thz ~ccurr~nce of a <br />very large debris flow in Sutherland Creek. Debris flows r~cur when <br />~ufficient weathered material develops on steep slopes. TherE is a <br />nzed to determine the potential for other debris ilows since ~the nu*_e~ <br />debris flow occurred in area that is now a developed. <br />~-. <br />ACkHOWLEUvEMEMT , <br />I woul~ lii;z t~ ackowledge the time and assistance trom Carolyn <br />Jarr?tt to measure channel dimensions during the paleohydrologic <br />investigations. <br />REFEREUCES <br />Pollansbee, R~bert, and Sawyer, L. R. , 1948, Floods in Colorado: L. S. <br />Geological Survey Water-Supply,Paper 997, 151 p. <br />Jarrett, R.D., 1937, Flood hydrology of foothill and mountain streams <br />in Colorado: Fort Collin5, C'olorado, Colorado State Univer~i=;~, <br />Department of Civil Engineering, Ph.D. dissertation, 239 p. <br />U. ~. Arm;~ Corps oi Engineers, 1974, Flood Plain Information, Fountain <br />C~eelz, Colarad~ Springs and Manitou Springs, Colorado, Albuquerque <br />~ist: ict, Albuquerque, Hew Mer.ico, 46 p. <br />U. S. Federal Management Agency~, 1983, Flood Insurance ~tudy, City of <br />Manitou ~prings, Colorado, 1 valume. <br />i <br />t4 <br />