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<br />~. <br /> <br />Dr. John Liou <br />June 12, 1981 <br />Page Two <br /> <br />CAMP DRESSER & McKEE INC. <br /> <br />The COE flow rates were also compared to the hydrologic results of recent <br />studies in the South Shooks Run basin that are being performed in <br />conjunction with drainage improvement planning on South Shooks Run. Using <br />the present criteria for drainage planning in the City of Colorado Springs <br />(primarily the SCS method) a peak flow rate of 6,600 cfs was calculated (by <br />others), for an area of about 8.9 sq. miles of the south Shooks Run basin. <br />This translates into a peak unit flow rate of 742 cfs/sq.mile, which <br />compares very well to the COE results. Owing to the differences in <br />methodology, we feel that consistant hydrologic results were obtained by <br />the COE. <br /> <br />~~ <br />" <br /> <br />We would like to recommend the use of the COE hydrology in the hydraulic <br />analysis of South Shooks Run. If you have any questions or comments <br />concerning this recommendation, please contact us anytime. <br /> <br />Very truly yours, <br /> <br />1'1; <br />~;. <br /> <br />CAMP DRESSER & McKEE INC. <br /> <br />'.~ <br />r':' <br /> <br /> <br /> <br />RNW/ps <br />cc: Gene Jencsokt CWCB <br /> <br />