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u~intiv~ ~n11tH1A MANIIAL <br />MAJOR DRA1rIA~t <br /> Table 5-1 <br /> <br />' CLAS SIFICATION AND GRADATION OF ORDINARY RIPRAP <br /> <br />Riprap <br />% Smaller Than <br />Intermediate Rock * <br />d50 <br /> Designation Given Size Dimension <br /> By Weight (Inches) Inches) <br /> <br /> Type VL 70-100 12 <br /> 50-10 9 <br /> 35-50 6 6** <br />' 2-10 2 <br /> Type L 70-100 15 <br /> 50-70 12 <br /> 35-5D 9 9** <br /> 2-10 3 <br />1 Type M 70-100 Z1 <br /> 50-70 18 <br /> 35-50 12 12 <br />' 2-10 4 <br /> Type H 100 30 <br />' 50-70 24 <br /> 35-50 18 18 <br />' 2-10 6 <br /> Type VH 100 42 <br /> 50-70 33 <br />' 35-50 24 24 <br /> 2-10 9 <br />' *d50 = Mean particle size <br />** Bury types VL and L with native top soil and revegetate to protect <br />from vandalism, <br />' 5.2 Wire Enclosed Rock <br />Wire enclosed rock refers to rocks that are bound together in a <br />wire basket so that they act as a single unit. One of the major <br />' advantages of wire enclosed rock is that it provides an alternative in <br />situations where available rock sizes are too small for ordinary <br />' riprap. Another advantage is the versatility that results from the <br />regular geometric shapes of wire enclosed rock. The rectangular <br />' blocks and mats can be fashioned into almost any shape that can be <br />11-15-82 <br />