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<br />Table 4.8-7 Embankment Designs (continued). <br /> <br /> Middle Middle Middle East West <br /> Flume Flume Flume Horse Middle East Horse <br />Sedimentation Pond: #1 (2) #2 ;P3 (2) #1 (2) Flume #1 (2) Flume #1 (2) <br /> <br />Elevation Upstream 6903.0 6885.0 6868.0 7227.0 6810.0 6662.0 7191.0 <br />Tce (ft) <br />Principal Spillway <br />Stage (ft) 11.7(1) 15.5(1) 14.0(1) 14.0(1) 10.0(1) 11.3 (1) 5.0(1) <br />Elevation (ft) 6914.7 6900.5 6882.0 7232.0 6820.0 6873.3 7196.0 <br />Diameter-d (in) <br />Emergency Spillway <br />Stage (ft) 11.7(1) 15.5(1) 14.0(1) 14.0(1) 10.0(1) 11.3(1) 5.0(1) <br />Elevation (ft) 6914.7 6900.5 6882.0 7232.0 6820.0 6873.3 7196.0 <br />A Width-b (ft) <br />J 5.9 10.0 9.0 0.5 0.5 0.5 <br /> <br />p1 Maximum W.S. 6916.4 6904.1 6886.0 7234.2 6821.8 6875.0 7197.1 <br />Elevation (ft) <br />25-Yr,24-HrEvent <br />Top of Embankment 6918.5 69116.3 6888.0 7236.0 6824.0 6876.4 7200.0 <br />Elevation (ft) <br />Freeboard (ft) 2.1 2.2 2.0 1.8 2.2 1.4 2.9 <br />Note: Elevations are based on current topographic information obtained from aerial photographs. Actual elevations will vary according to actual field <br />conditions after topsoil removal but relative elevations should remain the same. <br />(1) Single openchannel design. <br />70 (2) As-built information. <br />g ~ e,A,m«.,~n <br />~y <br />~~ <br />N <br />O <br />O <br />