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Two methods were used in the computer analysis for determining safety factors; the Simplified Bishop's Procedure and the JanBu procedure- Both procedures seazch for circulaz shear failures and automatically search for the lowest safety factor. 1500 sepazate failure surfaces were analyzed for each case. The required minimum safety factors are based on the current standazds used by the State Engineer in evaluating embankment dams. SLOPE STABILITY RESULTS The calculated factors of safety are within the design criteria specified for this project and can be considered indicators of the embankment performance under the various conditions. The results of the slope stability analysis are presented in Table 2. Table 2 -Slope Stability Analysis Results Description Calculated Factor Of Safety Required Minimum Factor Of Safety Case 1 - 104 Avenue 1.28 1.25 Case 2 -Adjacent Buildings 1.28 1.25 Case 3 -Fulton Ditch 1.27 1.25 Case 4 -South Platte River 126 1.25 Case 5 - Howe/Haller Pit 1.32 1.25 Case 6 -Steady State Condition 2.1 I I.50 CONCLUSIONS AND RECOMENDATIONS Case 1 -The resulting safety factor bf 1.28 is above the State Engineers minimum requirement of 1.25 for an embankment during construction. The proposed setback of 45 feet from the Right-of--Way line is satisfactory. Case Z -The resulting safety factor of 1.28 is above the State Engineers minimum requirement of 1.25 for an embankment during construction. The proposed setback of 55 feet from the property line and 60 feet from the buildings is satisfactory. Case 3 -The resulting safety factor of 1.27 is above the State Engineers minimum requirement of 1.25 for an embankment during construction. The proposed setback of 85 feet from the property line and 107 feet from the edge of the Fulton ditch is satisfactory. Case 4 -The resulting safety factor of 1.26 is above the State Engineers minimum requirement of 1.25 for an embankment during construction. The proposed setback of 40 feet from property line and 160 feet from the outside top of bank of the South Platte River is satisfactory.