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<br />. <br />. <br />. <br />. <br />. <br />. <br />. Cow Creek, The period of record at the Cow Creek gaging station is 18 years, The frequency <br />. analysis and regional regression equations provide similar computed discharge values for <br />. drainage areas close to the gaged drainage area, It is recommended that the results of the <br />. frequency analysis and Equation 2 be used to determine LOO.year discharge rates for drainage <br />. areas within the limits of applicability of Equation 2, For drainage areas less that the appropriate <br />. range for Equation 2, the regional regression approach of equation 1 may be applied but will <br />. provide discharge rates somewhat higher than indicated by the frequency analysis, For drainage <br />. areas greater than the Equation 2 range, regional regression equations appear to underpredict <br />. discharge rates based on the frequency analysis results and detailed analyses are recommended, <br /> <br />. <br />. Uncompahgre River. Since construction of Ridgway Reservoir was completed in 1987, <br />. discharges downstream of the reservoir are subject to regulation, USACE analysis of the <br />. reservoir indicates that LOO-year storm flows at the Colona gage are limited to 2,000 cfs, which is <br />. the safe channel capacity at that location, Based on this, it is recommended that a loo-year storm <br />. discharge value of 2,000 cfs be used for the reach of the Uncompahgre River between Ridgway <br />. Reservoir and-the Colona Gage, <br /> <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />.a. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. 6 <br />. <br />- <br />