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The slope stability calr.nla,lions rere <br />• performed using a computer program called GEOSLUPE, Version a.10, <br />based upon the program STAR1,3, developed at Purdue University. <br />The calculated stabilities were made using the Simplified Janbu <br />Method of Slices, for irregular failure surfaces. <br />GRQUKD WATER <br />The ground water conditions at this site <br />and along the purposed road alignments t[as not been well docu- <br />mented. This study assumed that small, localized perched waters <br />may he associated with snow melt or occasional periods of eKtenci- <br />ed precipitation. These perched waters are assumed to be very <br />localized, concentrated near the interface of the srtrface collu- <br />vit[m and the underlying sandstones, siltstones, mudstones and <br />• shales of the Bowie Member of the Mesa Verde Formation. It has <br />been assumed the construction will include proper road drainage <br />features and that any fills placed as a part of this construction <br />pr•nject will be properly drained and protected from infiltration <br />of large amounts of surface or ground water. Such protection <br />will include properly constructed road ditches and culverts and, <br />may include subsurface drainage layers placed as a part of or at <br />the base of the of surface or ground water. Such protection will <br />include properly constructed road ditches and culverts and, may <br />include subsurface drainage layers placed ss a part of or at the <br />base of the fills. <br />5 <br />• <br />