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TABLE OF QUANTITIES RIPRAP AT RCP OUTLETS CLASS II CLASS III CLASS IV d50 - 6�� d50 = 9" d50 = 12" DIA. GRANULAR GRANULAR GRANULAR OF GEO- FILTER 12" GEO- FILTER 18" GEO- FILTER 24" ROUND L TEXTILE UNDER DEPTH TEXTILE UNDER DEPTH TEXTILE UNDER DEPTH PIPE FILTER APRON RIPRAP FILTER APRON RIPRAP FILTER APRON RIPRAP (IN. ) (FT. ) (SQ.YD. ) (CU.YD. ) (CU.YD. ) (S�.YD. ) (CU.YD. ) (CU.YD. ) (SQ.YD. ) (CU.YD. 1 (CU.YD. ) 12 8 16.9 0.2 3.0 19.6 0.3 4.4 22.6 0.3 5.9 15 8 18.0 0.2 3.2 20.8 0.3 4.6 23.9 0.4 6.4 18 10 22.4 0.3 4.3 25.6 0.4 6.4 29.0 0.5 8.5 21 10 24.1 0.4 4.7 27.4 0.6 7.1 30.9 0.7 9.4 24 12 29.7 0.5 6.2 33.4 0.8 9.2 37.3 1.0 12.3 27 12 31.4 0.6 6.6 35.2 0.9 9.9 39.2 1.2 13.2 30 14 37.4 0.8 8.2 41.6 1.1 12.3 46.0 1.5 16.4 36 16 45.9 1.1 10.6 50.5 1.6 15.8 55.4 2.1 21.1 42 18 52.8 1.2 12.5 57.8 1.7 18.7 63.0 2.3 24.9 48 20 61.1 1.5 14.8 66.5 2.2 22.2 72.0 2.9 29.6 TABLE OF QUANTITIES RIPRAP AT RCP-A OUTLETS CLASS II CLASS III CLASS IV d50 - 6�� d50 - 9�� d50 = 12" SPAN GRANUL GRANUL GRANUL OF GEO- FILTER 12" GEO- FILTER 18" GEO- FILTER 24" PIPE L TEXTILE UNDER DEPTH TEXTILE UNDER DEPTH TEXTILE UNDER DEPTH ARCH FILTER APRON RIPRAP FILTER APRON RIPRAP FILTER APRON RIPRAP (IN. ) (FT. ) (SQ.YD. ) (CU.YD. ) ICU.YD. ) (SQ.YD. ) (CU.YD. ) (CU.YD. ) (SQ.YD. ) (CU.YD. ) (CU.YD. ) 22 10 22.4 0.3 4.1 25.6 0.4 6.1 29.0 0.5 8.1 28 12 29.5 0.5 5.7 33.2 0.7 8.5 37.1 0.9 11.3 36 14 37.3 0.8 7.5 41.5 1.1 11.2 45.8 1.5 14.9 43 16 45.9 1.1 9.5 50.5 1.6 14.3 55.3 2.1 19.0 51 18 52.5 1.2 11.3 57.5 1.7 16.9 62.7 2.3 22.5 58 20 59.9 1.3 13.2 65.2 1.9 19.8 70.7 2.5 26.4 B 4 1� 2' 1.0' � RIPRAP A � N Q � / � o Q . .. �, w � � - GEOTEXTILE FILTER 2 4 GRANULAR CUSHION SECTION B-B 2� 1�_ NOTES: q REOUIREMENTS FOR GEOTEXTILE TYPE,RIPRAP SIZE AND B THICKNESS WILL BE DESIGNATED IN THE PLANS. PIPE SIZES LARGER THAN THOSE SHOWN RE�UIRE A SPECIAL L DESIGN. O FOR PIPES GREATER THAN OR EOUAL TO 30". USE 1.5'. PLAN O GEOTEXTILE FILTER,SPEC.3733,SHALL COVER THE BOTTOM AND SIDES OF THE AREA EXCAVATED FOR THE RIPRAP, GRANULAR FILTER MATERIALS. Z RIPRAP O DIMENSION E IS GIVEN ON STANDARD PLATES 3100 AND 3110. O GRANULAR FILTER,SPEC.3601,MAY BE USED AS A 1.0' O CUSHION LAYER. PLACE FILTER PER SPEC.2511. THE CUSHION LAYER IS INCIDENTAL. I td� pp,��,�� OS GRANULAR FILTER OR RIPRAP,SPEC.3601.TO EXTEND I_ I �a d�a�a'a UNDER ENTIRE OPEN PORTION OF PIPE APRON. DEPTH OF r z�_� ' MATERIAL UNDER APRON SHALL MATCH RIPRAP DEPTH. GRANULAR FILTER � WHEN L15ING RIPRAP INCREASE RIPRAP �UANTITY GEOTEXTILE FILTER 2 q ACCORDINGLY AND PLACE A 3" LAYER OF 1.5" GRANULAR CUSHION CRUSHED ROCK UNDER THE APRON TO AID IN GRADING SECTION A-A FOR APRON PLACEMENT.CRUSHED ROCK IS INCIOENTAL. APPROVED DECEMBER 9, 2013 STATE OF MINNESOTA SPECIFICATION STANDARD - DEPARTMENT OF TRANSPORTATION REFERENCE PLATE 3100 N0. 3110 RIPRAP AT RCP OUTLETS 3603 3133D STATE DESIGN ENGINEER 2511