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United States Department of the Interior <br />GEOL.OGICAL St1RVEY <br />BOX 25046 M.S. 4~ S <br />DENV~ER FEDERAL CENTER <br />DENVEI2, COLORADO 80225 <br />1\ Kt'.i'1.1' KF'.F~f~.lt'I'<): <br />~;1~-~.f~'. ~.. . . ...,.. <br />Mr. Dan Bunting <br />Flood Plain Administrator <br />Regional Building Department <br />101 West Costilla <br />Colorado Springs, Colorado 80903 <br />November 5, 1987 <br />Dear Mr. Bunting: <br />As we discussed on the telephone today, I am enclosing a copy of my <br />~ dissertation "Flood hydrology of foothill and mountain streams in Colorado" <br />for your information. This report is currently being prepared to be <br />released as a U.S. Geological Survey report. The report will provide you <br />with background information on the elevation limit of about 7,500 to 8,000 <br />feet for significant rain`al1 runoff flooding in Colorado that is of <br />interest to Don Soards, Corps of Engineers, Albuquerque, tiew Mexico, <br />concerning the flood warning system for Colorado SQrings and vicinity. <br />Since this report does not specifically cover the Colorado Springs ar~a, I <br />have offered to make a reconnaiss•ance of streams to determine the elevation <br />limit for rainfall flooding in the vicinity of Colorado Sorings and Manitou <br />Springs scheduled for November '7 and 8th. Paleoflood hydrology also can <br />provide additional information on the number, magnitude, and frequency of <br />historic floods in streams, although these latter aspects can not be <br />obtained in this reconnaissance. I wi11 provide you with a summary of my <br />onsite investigations. <br />Sincerely, <br />~~~1 ~~~ <br />Robert D. Jarrett <br />Research hydrologist <br />~ <br />