Rodarte Construction Inc 2/14/2018

I of this section Class 700 9-inch layer of 6" - 0 stone embankment meeting the test 1 requirements of this section Class 200 6-inch layer of 4" -0 stone embankment meeting the test requirements of this section Class 100 No filter blanket required Class 50 No filter blanket required I PART 3 EXECUTION 1 3.1 PREPARATION A. Remove brush, trees, stumps and other organic material from slopes to be protected by riprap and dress to a smooth surface. ' B. Remove all unsuitable material to the depth shown or directed and replace with approved material. C. Compact filled areas as specified in Section 31 23 17, Trenching. D. Provide riprap protection as early as the structure foundation construction permits. Prepare the surfaces to be protected as shown. E. Maintain the trench slopes,riprap geotextile or filter blanket until the riprap is placed. 3.2 RIPRAP GEOTEXTILE A. Install riprap geotextile as shown in the Drawings or as directed by the ENGINEER. 1 3.3 FILTER BLANKET CONSTRUCTION A. If required, place the filter blanket on the prepared area to the full specified thickness in one ' operation,using methods which will not cause segregation. B. The surface of the finished layer shall be reasonably even. ' 3.4 RIPRAP BACKING A. When indicated on the Drawings, the CONTRACTOR shall have the option of placing either riprap geotextile or a filter blanket behind the riprap. B. Install the backing per these specifications or as shown in the Drawings. ' 3.5 RIPRAP A. General - Unless otherwise directed, place the riprap protection as the embankment is constructed. Its placement shall lag behind embankment construction only as necessary to allow proper embankment construction and prevent mixture of embankment and riprap 1 material. ' Legion Golf Course Stormwater Detention Project Rip Rap WO#UP3620 31 37 00 -3