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amec'? <br />• <br />Stone Size d50l Percent of Material Smaller than Typical Typical Stone Dimensions' <br />(in) Stone2 in <br />6 70 - 100 12 <br /> 50 - 70 9 <br /> 35 - 50 6 <br /> 2-10 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 DF- WINGS. <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 />• <br />Section 02271 Page 2 of 2 September 3, 2008 <br />Rip Rap Revision 1 <br />SAProjects\1125 CC&V Phase 5 VLF\I - Tech Specs\Hrequa IFC Specs\02271.0.doc