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• T, ble 4.1. Suggested seasons ienoth (months) .for the six U.S. climatic regions. <br />. <br />Season (Roadbed Soil Moisture Condition) <br />U.S. <br />climatic <br />Winter <br />Spring -Thaw Spring /Fell <br />Sommer <br />Region <br />(Roadbed <br />(Roadbed (Roadbed <br />(Roadbed <br />Frozen) <br />Saturated) Well <br />p ry) <br />1 <br />0.0 <br />0.0 7.5 <br />4.5 <br />Il <br />1.0 <br />0.5 7.0 <br />3.5 <br />1 1 1 <br />2.5 <br />1.5 '' <br />4,0 <br />IV <br />010 <br />0.0 e 0 s <br />8.0 <br />'1 <br />1.0 <br />0.5 3.0 <br />7-s <br />i.5 3.4 <br />, 3Nur'o Cf MV.—Mm fOt tre seawri. <br />• <br />Table 4.2. , <br />Suggested seasonal <br />roadbed e •:1 resilient moduli, M (FsQ. <br />e s -.. function of <br />the relative quality of the roadbed material. <br />Season (Roadbed Soil Moisture Condition) <br />Relative <br />' <br />Quality <br />of <br />Winter <br />Spring -Thaw Spring /Fail <br />Summer <br />Roadbed <br />(Roadbed <br />(Roadbed (Roadbed <br />(Roadbed <br />Soil <br />Frozen( <br />Saturated) Wet) <br />Dry) <br />Very Good <br />20.000' <br />2,500 8,000 <br />20.000 <br />Good <br />20.000 <br />2.000 6,000 <br />10.000 <br />Fair <br />20.000 <br />2.000 4,6G0 <br />6.500 <br />Poor <br />20.000 <br />1.500 3.300 <br />+C 400 <br />Very Poor <br />20,000 <br />1.500 2.E00 <br />4,COO <br />•`dues shown <br />are Resilient Modulus <br />in psi. <br />• <br />C1 ',1 CC71 'Ohl <br />OE1T `ua11PI16SSw CI4n! 111A1CaAA <br />s1AIJ /!'I A AA7 •A7 I10� <br />Revised March 2010 <br />(PR06) <br />Attachment 2.05.3(3) -8 -11 <br />