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<br />. <br /> <br />. <br /> <br />Dr. John Liou, FEMA <br />October 20, 1981 <br />Page 3 <br /> <br />CAMP DRESSER & McKEE INC, <br /> <br />Springs Zoning Maps were all used in determining basin character- <br />istics and sub-basin curve numbers for use in the hydrologic <br />analysis. The rainfall used is the same as described in the <br />Douglas Creek summary. <br /> <br />Temp1 eton Gap <br /> <br />All basin characteristics and curve numbers were obtained from the <br />1977, "North Shooks Run - Templeton Gap Drainage Basin Study," by <br />Lincoln DeVore. In the 1977 study only the 100-year discharge was <br />calculated, therefore CDM calculated the discharges for the 10-, <br />50- and 500-year recurrence intervals at each hydrologic point. <br /> <br />CDM recommends the hydrologic analysis described above be adopted for the <br />Flood Insurance Study for Colorado Springs, Colorado. The flow rates for <br />each flooding source is summarized in the attached Table 1. These flow <br />rates will be used in the hydraulic analyses for Douglas Creek, Mesa Basin, <br />Peterson Field, Rockrimmon Basin, Sand Creek, Spring Creek and Templeton <br />Gap. <br /> <br />If you have any questions concerning the hydrologic analyses discussed <br />herein, please contact me as soon as possible. <br /> <br />Very truly yours, <br /> <br />CAMP DRESSER & McKEE INC. <br />~A.~ <br /> <br />Paul A. Hindman <br />Project Engineer <br /> <br />PAH!ps <br /> <br />Enclosure <br /> <br />cc: Bill Stanton, CWCB <br />Gary Haynes, City of Colorado Springs <br />