Local Road Management Manual 476 56 4.78 4.69 4.76 4.89 4.99 5.05 5.08 5.09 5.1 58 5.57 5.44 5.51 5.66 5.79 5.87 5.91 5.94 5.95 60 6.45 6.29 6.35 6.53 6.69 6.79 6.85 6.88 6.90 62 7.43 7.23 7.28 7.49 7.69 7.82 7.90 7.94 7.97 64 8.54 8.28 8.32 8.55 8.80 8.97 9.07 9.13 9.16 66 9.76 9.46 9.48 9.73 10.02 10.24 10.37 10.44 10.48 68 11.1 10.8 10.8 11.0 11.4 11.6 11.8 11.9 12.0 70 12.6 12.2 12.2 12.50 12.80 13.2 13.4 13.5 13.6 72 14.3 13.80 13.7 14.0 14.5 14.9 15.1 15.3 15.4 74 16.1 15.5 15.4 15.70 16.2 16.7 17.0 17.2 17.3 76 18.2 17.5 17.3 17.6 18.2 18.7 19.1 19.3 19.5 78 20.4 19.6 19.4 19.7 20.3 20.9 21.4 21.7 21.8 80 22.8 21.9 21.6 21.9 22.6 23.3 23.8 24.2 24.4 82 25.4 24.4 24.1 24.4 25.0 25.8 26.5 26.9 27.2 84 28.3 27.1 26.7 27.0 27.7 28.6 29.4 29.9 30.2 86 31.4 30.1 29.6 29.9 30.7 31.6 32.5 33.1 33.5 88 34.8 33.3 32.8 33.0 33.8 34.8 35.8 36.6 37.1 90 38.5 36.8 36.2 36.4 37.2 38.3 39.4 40.3 40.9