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STANDARD TRENCH S CTI � EX PAVEMENT 6» � s s �� <br /> SEE STD DWG 61 � �g�� <br /> I I 571 -�3 � MIN : £ <br /> � i i , LIMITS OF TRE�ICH : . � �� .� �* , � • � <br /> � - : . . <br /> \\ i � � � \\. \\::\\ \\ \\ \\ \\ \\ \\ \\ \\ \\ .\\. ;, . <br /> � I I � W = MAXIMUM WIDTH OF TRENCH. FOR PIPES 15 OR LESS IN ��/r�//j/�� �/��/��/��/�/��/��/��/�j/� <br /> j � ( , DIAMETER W = 40". FOR PIPES 1$" OR GREATER W= 1 1/2 \j�\�� � �\��\����j/� ��������� <br /> ��� „ i� ALTERNATE SLOPING x I.D. + 18". PIPE MUST BE CENTERED IN TRENCH. �/��/� /��/��� i <br /> /���`�� W �� TR ENCH WALL ���i��//� ��//� ��� � <br /> '�\�/�\�/`�. i i ,' BEDDING AND FOUNDATION MATERIALS: �� \�� � � <br /> �\/�\/�\ � UPPER LIMIT OF <br /> �/��/��/� � PIPE ZONE PIPE BEDDING MATERIAL SHALL BE CRUSHED SURFACING BASED 2 � � ��% 2 <br /> i/��\/\�\� COURSE CONFORMING TO SECTION 9-03.9(3) OF THE � �\� <br /> ��\/��\/ STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL �\�/ � 6 � <br /> �\�/�\� CONSTRUCTION WSDOT/APWA. \��\ <br /> CRUSHED SURFACING ��\/ �2�� „ ���/� <br /> BASE COURSE OPTIONAL PIPE BEDDING (TO SPRING-LINE) FOR PIPE 15 DIA ��� <br /> AND LARGER: PEA GRAVEL OR 3/4 CLEAN ROCK CHIPS AS ��� <br /> APPROVED IN ADVANCE BY ENGINEER. 8 /� <br /> OVER EXCAVATION AND PLACEMENT OF FOUNDATION MATERIAL, <br /> IF REQUIRED SHALL BE FQUNDATION MATERIAL CLASS A OR B A <br /> O.D. CONFORMING TO SECTION 9-03.17 OF THE STANDARD 3 <br /> SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL � <br /> OPTIONAL PIP ING CONSTRUCTION WSDOT/APWA. <br /> SEE NOT BEt� PIPE ZONE SEE �� <br /> 6�� PROCEDURE FOR COMPACTION: STD DWG 611 � ' ! <br /> _� �� 57�1 -�03 <br /> PROVIDE UNIFORM SUPPORT UNDER PIPE BARREL. �j <br /> A ' <br /> � LOWER LIMIT OF COMPACT BEDDING MATERIAL TO 90% MAXIMUM DENSITY j\� <br /> /��� PIPE ZONE EXCEPT DIRECTLY OVER PIPE, HAND TAMP ONLY. \�� 4 <br /> \�j\��\��\��\��j/\ HAND TAMP UNDER PIPE HAUNCHES FOR ALL BEDDING %\ . <br /> �/\��/,���/��� MATERIALS. ��\/ �//�// <br /> OVER EXCAVATE ANQ PLACE � <br /> FOUNDATION MATERIAL CLASS A, B FOR A D T 0 AL COMPACTION INFORMATION SEE STANDARD DWG W (SEE NOTE 1) <br /> OR AS APPROVED BY THE ENGINEER 615 A <br /> WHEN SPECIFIED. 2 <br /> 571 -03 N OTES: <br /> A � ITY 0 F E�ER ETT STD DWG 611 `-� A <br /> B E D a I N G �0 R P I P E I N T R E�l C H E S � 1 . W = MAXIMUM WIDTH OF TRENCH. F�R PIPES 15" OR LESS IN DIA 7. ��^'�-��Ef�E�� ""� ^'"'^ Z'� FOR PAVEMENT PATCH <br /> SCALE: NOT TO SCALE W=40". FOR PIPES 18" OR GREATER W=1.5 x I.D. + 18". PIPE MUST DETAILS, SEE SHEETS C529 AND C530. <br /> C571 -03 BE CENTERED IN TRENCH. <br /> 8. VERTICAL TRENCH WALLS WITH SHORING TO CONFORM TO O.S.H.A. � <br /> 2. ALTERNATE SLOPING TRENCH WALL TO MEET O.S.H.A. REQUIREMENTS REGULATIONS. <br /> (NO SLOPES STEEPER THAN 1 :1 EXCEPT FOR ROCK). <br /> A 9. SUBGRADE OR GROUND SURFACE IN NON-PAVED AREAS. <br /> 3. SUITABLE NATIVE MATERIAL OR IMPORTED GRAVEL BORROW AS <br /> DIRECTED. COMPACT TO 90� MAXIMUM DENSITY. 10. EXCAVATED NATIVE MATERIAL OR STOCKPILED BACKFILL MATERIAL. <br /> 3' MIN MIN. 95� COMPACTION 4. FOUNDATION GRAVEL IF REQUIRED BY THE ENGINEER TO REPLACE 11. FOR ALL TRENCHING TRANSVERSE TO THE ROADWAY BACKFILL ABOVE <br /> UNSUITABLE MATERIAL. SHALL BE FOUNDATIO MAT I /�`� THE PIPE ZONE SHALL BE CONTROLLED DENSITY FILL. SEE SECTION <br /> A NOTES: 5. A, B OR AS APPROVED BY THE ENGINEER. S E TD DWG 11 . �� 3-9.6 & 3-20.1 OF THESE STANDARDS <br /> ) � <br /> c5�� -a3 <br /> � 12. FOR UTILITY CUTS SUCH AS GAS, TELEPHONE, POWER, AND CABLE N. <br /> 1 . ALL BACKFILL MATERIAL SHALL BE PLACED IN LIFTS NOT 6. FOR ADDITIONAL COMPACTION INFORMATION SEE STANDARD DWG 615. 2 LONGITUDINAL TO THE ROADWAY, BACKFI�L SHALL BE CONTROLLEQ <br /> TO EXCEED 12 INCHES BEFORE COMPACTION UNLESS <br /> BACKFILL AUTHORIZED BY THE ENGINEER DUE TO THE CHARACTER 7. IF DIRECTED BY THE ENGINEER THE TOP THREE TO FIVE FEET OF C571 -03 DENSITY FILL. SEE SECTION 3-9.5 OF THESE STANDARDS. <br /> SEE STD DWG 610 � OF THE MATERIAL AND THE COMPACTING EQUIPMENT. BACKFILL SHALL BE IMPORTED GRAVEL BORROW OR SUITABLE NATIVE � <br /> C571-03 MATERIAL COMPACTED TO 95� MAXIMUM DENSITY. <br /> � 2. MECHANICAL COMPACTION OF BACK FILL MATERIAL SHALL <br /> NOT BEGIN UNTIL THE DEPTH OF THE COMPACTEQ <br /> MIN. 90� COMPACTION BACKFILL MATERIAL IS 2 FEET ABOVE THE TOP OF THE <br /> PIPE. A CITY OF E�ERETT STD DWG 61 � <br /> 3 REQUIRED DENSI�TYgPR OR TO 'PLACING SUB EQ�UEN�T IFTS TYP I CA� TR E N C H S ECTI 0 N �� <br /> OF BACKFILL MATERIAL. SCALE: NOT TO SCALE C571 -03 <br /> 4. COMPACTION TESTS SHALL BE AS REQUIRED BY THE CITY <br /> ENGINEER, BUT IN NO CASE LESS THAN 2 TESTS EVERY <br /> 12" MIN 200 FEET OF TRENCH (ONE AT SUBGRADE AND ONE AT <br /> MIN. 90� COMPACTION A 50� OF TRENCH DEPTH). <br /> 5. IN PLACE DENSITY AND MOISTURE CONTENT WILL BE <br /> PIPE ZONE DETERMINED USING NUCLEAR METHOD, ASTM 2922-71 . , <br /> SEE STD DWG 611 � �, �qBORATORY MAXIMUM DRY DENSITY AND OPTIMUM <br /> 571 -03 MOISTURE CONTENT WILL BE DETERMINED USING THE <br /> �'' MODIFIED PROCTOR METHOD IN ACCORDANCE WITH ASTM <br /> D-1557. <br /> 6" TO 12" TYP <br /> __ A <br /> OFFNIAN . <br /> MIN. 90% COMPACTION FOUNDATION MATERIAL N G 1 H E E R S <br /> AS REQUIRED <br /> SEE STD DWG 611 1 1601 Fifth Avenue,Suite 900�Seattle,WA 98101 <br /> ph 206.623.0717�fax 206.624.3775 <br /> coffman.com <br /> 571 -03 <br /> LASTING crea�ivity�resutls�relationships <br /> \� <br /> A C ITY 0 F E�ER ETT STD DWG 615 ° BM ITTAL <br /> TYPICAL TRENCH COMPACTION �� <br /> 90 /o S U <br /> SCALE: NOT TO SCALE C571-03 I S S U E D F 0 R P E R M I T <br /> N <br /> W A SUBTITLE CURRENT REVISION SYMBOL DATE c�i <br /> SYM REYISION BY APPROVED DATE SYM REVISION BY APPROVED DATE �� L. ACCEPTABILITY N. DAVIS 02.28.13 W4535737 A 05.09.�7 � <br /> v~�w °F.`-;AS�! SP CHFlCATION NS�APP OVED E. DAVIDO o2.28.,3 UTILITY TRENCH BACKFILL DETAILS SHEEf � <br /> ORIG NEW FLIGHTLINE WATER LINE DESIGN EVE-1019 DCG/ED ED 02.28.13 � <br /> A 777X STALL MODIFICATIONS - PHASE 2 W4535737W CEI AH 05.09.17 �OE,H�� � �� •� APPROVED BY DEPT. DATE QCG 02.28.13 T�T� 777X STALL MODIFICATIONS - PHASE 2 � <br /> '~ CHECKED C 5 71 0 3 � <br /> E. DAVIDO o2.28.,3 SITE 45-YD " <br /> � �G�s��g� �06 No. EVE-1019 coMP No. � <br /> � <br /> �, 45458 � �� pp <br /> �sSIo�AL E�'c,`� APPROVED CIVIL MASTER EVERETT, WA DWG N0. 45-YD-0571 -03 <br /> 5/9l2017 � <br />