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90 <br />80 <br />70 <br />60 <br />SO <br />40 <br />so <br />20 <br />10 <br /> <br />Embankment Elev. 6989.4' <br />I <br />Maximum 24 hr. <br />100 yr. storm <br />Phreati <br />SurfacE <br />Failure Surface under ~~ <br />high level steady state <br />seepage Factor of safety = 1:53 <br />Notes: <br />1. Maximum 24 hr., 100 yr. storm pond level was supplied by Peabody Coal Company. <br />2. Psuedo static coefficient of acceleration of 5% of gravity was incorporated in the analysis. <br />3. Elevations refer to grid elevations used in computer simulation. <br />Existing Haui <br />Road Embankment <br />1 <br />1 <br />1 <br />1 <br />1 <br />z <br />e <br />01 <br />m <br />d <br />W <br />STEADY STATE <br />SEEPAGE FAILURE SURFACE <br />HAUL ROAD NO. 1 EMBANKMENT <br />SENECA II MINE, HAYDEN, COLORADO <br />FOX, Consulting Engineers and Geologists <br />Date: T/13/81 <br />Drawn Rv: TE SCALE: 1~ - 30' <br />Reviewed By: I~F.$ _ <br />Job No: 1-2662-10060 Figure 11 <br />