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Stone Size d50' <br />Percent of Material Smaller than Typical <br />Typical Stone Dimensions' <br />(in) <br />Stone <br />(in <br />6 <br />70 -100 <br />12 <br />50-70 <br />9 <br />35-50 <br />6 <br />2 -10 <br />2 <br />Notes: <br />1. d5o = average stone size <br />2. based on typical rock weight <br />3. equivalent spherical diameter <br />4. 4) based on a specific gravity of 2.5 <br />D. Nominal stone size and total thickness of the riprap shall be as shown on the DRAWINGS. <br />2.02 INSTALLATION <br />Stones with typical stone dimensions that are equal to d5o and larger shall be placed at the top surface with <br />faces and shapes matched to minimize voids and form as smooth a surface as practical. Dumping and backhoe <br />placement alone is not sufficient to ensure a properly interlocked system. The material may be machine- placed <br />to form a substantial bond as approved by MANAGER and CERTIFYING ENGINEER. <br />* ** END OF SECTION * ** <br />Section 02271 Page 2 of 2 <br />Rip Rap <br />SAProjects \1125E CCV CQAV - Tech Specs \02271.r1.doc <br />September 3, 2008 <br />Revision 1 <br />