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<br />..,1:- <br />,I <br /> <br />8 <br /> <br /> <br />. HMR 44 - 1970 Site-Specific PMP for Chatfield Dam applied to Cherry Creek basin. Developed by the NWS. <br /> <br />. HMR 55A - NWS Generalized Regional Report published in 1988 for the area between the Continental Divide and the 103"" <br />Meridian. <br /> <br />. Site-Specific - 1995 analysis specifically for Cherry Creek basin. Developed by the NWS. <br /> <br /> <br />" The Corps had studied three fixes for the dam <br />.. so it could handle the probable maximum <br />, flood: <br /> <br />, , Raise it by 15 feet; <br />, 'Raise it by nine feet and add a second <br />: spillway, or <br />'Raise it by seven feet and add a dry dam <br />, upstream. <br /> <br />" The construction of dry dams, which hold <br />, water only during flooding, was the most <br />Ii controversial and expensive of the proposed <br />'. upgrades, estimated to cost about $140 <br />" million. Six locations were identified, <br />including one at the site of the old <br />: Castlew~od Dam, which breached in 1933. <br />I' The dry dams, if constructed, would have <br />displaced dozens of residents. Residents <br />: urged the Corps to consider other options, <br />such as building several smaller retention <br />areas, widening Cherry Creek, or restoring <br />the old Castlewood Canyon Dam. A concern <br />was that a number of historic ranches and <br />structures would be threatened by the <br />project. <br /> <br /> <br />Cherry Creek Basin (photo courtesy of Corps of Engineers OTTUlha Office) <br /> <br />In a June 22, 1999 letter to interested parties, Kenneth S. Cooper, Deputy District Engineer at the Corps' Omaha District Office, <br />said the preliminary screening of Cherry Creek Dam had been completed and only the following alternatives would be considered <br />further: <br /> <br />~~~~ <br />