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HIGHWAY DESIGN MANUAL 400-31 <br /> November 1,2001 E <br /> Figure 407D <br /> California Semitrailer Wheel Tracks - 18 In Radius <br /> r <br /> BC <br /> 1•, r I '' ' 'r' <br /> ! r <br /> `!fr' <br /> r" <br /> 10 20 30 <br /> SCALE IN METERS <br />