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m 7. <br />Table B. Stability Analysis Results (ditch water loss fed seeps) <br />Theoretical Factor of Safety <br />Condition` <br />Landide Creek <br />Steady State <br />3.9 4.7 <br />Earthquake <br />3.3 4.1 <br />Critical Flood Stage <br />3.9 <br />Rapid Dra down <br />N,A. 4.6 <br />*Since the levee exists, "end of construction" is not applicable. <br />ConsolidaUnn The levee is judged to be densely compacted. Almost all the <br />levee is 17 years old and the majority of consolidation due to the weight of <br />the levee has occurred. The crest of the levee was recently raised a <br />maximum of 2.4 feet. The new fill (maximum of 2.4 feet) placed during <br />maintenance work for reclamation of the gravel pit added little weight to the <br />foundation soils which have low compressibility. Thus, loss of freeboard <br />from the weight of the maintenance fill will be unnoticeable. <br />Im of Ory Creek Ditch #2, Dry Creek Ditch #2 is located at the too of the <br />oree side of the levee. The ditch carries water all year, ho wever, during the <br />irrigation season the quantity is greater. We reviewed the likely impact of <br />the water in Dry Creek ?itch and the ditch on the stability of the creed id <br />slope of the levee. Its influence is only slight (compare safety factors in <br />Tables A and B). <br />LIMITATIONS <br />The test holes and test pits used in this investigation were located to obtain <br />a reasonably accurate picture of the subsurface conditions in the levee and its <br />foundation. Assumptions used in agotechnical evaluation of the levee are based <br />on subsurface information revealed by the test holes and test pits, laboratory test <br />results and engineering experience. <br />FLATIRON COMPANIES <br />LEVEE AT DEEPS FARM PIT 1 <br />TLJT 25,385 <br />