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<br /> IESS IN DIAMETER W=40". FOR PIPES 18" OR OR LESS IN DIA W=40". FOR PIPES 18" OR GREATER
<br /> GREATER W = 1 1/2 x I.D. + 18 . PIPE MUST BE W=1.5 X I,D. + 18". PIPE MUST BE CENTERED W American Property Development,Inc.
<br /> CENTERED IN TRENCH. TRENCH. 1�0�1oth Avenue tvE suite 550 - .
<br /> Bellevue,WA 98004 �
<br /> 2. ALTERNATE SLOPING TRENCH WALL TO MEET `,�•.� .
<br /> MATERIALS ExisriN� � 6 8 -- 9� 10 O.S.H.A. REQUIREMENTS(NO SLOPES STEEPER THAN '
<br /> STANDARD TRENCH SECTION PAVEMENT 1:1 EXCEPT FOR ROCK�.
<br /> SEE STANDARD DRAWING 614 PIPE BEDDING MATERIAL SHALL BE CRUSHED 6��
<br /> 1 r- SURFACING BASE COURSE CONFORMING TO SECTION � „ 3. SUITABLE NATIVE MATERIAL OR IMPORTED GRAVEL
<br /> ( � 9-03.9(3) OF THE STANDARD SPEGFICATIONS FOR , 18 MIN
<br /> BORROW AS DIRECTED. COMPACT TO 90% � �
<br /> ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION MAXIMUM DENSITY. �
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<br /> \� � � / � OPTIONAL PIPE BEDDING (TO SPRING-LINE) FOR PIPE � , �-i�� I _ I _ � ,� _ I I� ENGINEER TO REPLACE UNSUITABLE MATERIAL. t ' -�, :
<br /> ���� I I // ALTERNATE SLOPING 15" DIA AND LARGER: PEA GRAVEL OR 3/4° CLEAN -I I I-, ��� I �y����I I I�I � I�I I (� SHALL BE FOUNDATION MATERIAL CLASS A, B OR AS v W ¢� �
<br /> � ��� / TRENCH WALL ROCK CHIPS AS APPROVED IN ADVANCE BY ENGINEER. _� f � I � / APPROVED BY THE ENGINEER. Z � � N
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<br /> i\����� � PIPE ZONE MATERIAL �F REQUIRED SHALL BE FOUNDATION -� I (- � I I i I / 1 STANDARD DWG 615. ���, � Z o�Q :•• ,
<br /> \��\%� 9-03.17 OF HE S ANDARD Sp ORMWG TO SECTION = ,�� � _ W� � •
<br /> �j /� (CATIONS FOR ROAD, 1� � �I �� 6. IF DIRECTED BY THE ENGINEER THE TOP THREE TO �,, � J ?�Q
<br /> \��\ BRIDGE AND MUNICIPAL C O N S T R U C T I O N � ��� FIVE FEET OF BACKFILL SHALL BE IMPORTED GRAVEL 7 N�N
<br /> CRUSHED SURFACING ��� � - 2 1 %� BORROW OR SUITABLE NATIVE MATERIAL N `l'`"
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<br /> B A S E C O U R S E r-+ =� I I= C O M P A C T E D T O 9 5%MAXIMUM DENSITY. 0 z° .
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<br /> 7. SEE CITY OF EVERETT STANDARD DWG 316 FOR � o
<br /> -I I I- PAVEMENT PATCH DETAILS. �
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<br /> PROCEDURE FOR COMPACTION ( ( ��) 8. VERTICALTRENCH WALLS WITH SHORING TO � '
<br /> PROVIDE UNIFORM SUPPORT UNDER PIPE BARREL -I I � CONFORM TO O.S.H.A. REGULATIONS. 0°
<br /> � 111- .
<br /> � COMPACT BEDDWG MATERIAL TO 90% MAXIMUM 8 9. SUBGRADE OR GROUND SURFACE IN NON-PAVED `
<br /> / DENSITY EXCEPT DIRECTLY OVER PIPE, HAND TAMP AREAS. �
<br /> LOWER LIMIT ONLY.
<br /> COPYRIGHT C 2005, ALL RIGHTS RESERVED `
<br /> OF PIPE ZONE 10. EXCAVATED NATIVE MATERIAL OR STOCKPILED 0
<br /> � HAND TAMP UNDER PIPE HAUNCHES FOR ALL BACKFILL MATERIAL. SUBMITTAL REVISIONS .
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<br /> o z � BEDDING MATERIALS. �,
<br /> � � 0 0 11. FOR ALL TRENCHING TRANSVERSE TO THE ROADWAY � DATE DESCRIP710N
<br /> � J / r-+ BACKFILL ABOVE THE PIPE ZONE SHALL BE 1 2�20�1 BID SET
<br /> � m z � � FOR ADDITIONAL COMPACTION INFORMATION SEE o z � . '
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<br /> � o o CONTROLLED DENSITY FILL.SEE SECTION 3-9.6&
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<br /> ��\�� \��/ ,/� OVER EXCAVATE AND PLACE 3 , a u,
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<br /> Z Q a /���� �\��f F�UNDATION MATERIAL CLASS A B Z �I � a' n �i
<br /> �� 12. FOR UTILITY CUTS SUCH AS GAS,TE�EPHONE,
<br /> � z � ��/��� � OR AS APPROVED BY THE ENGINEER W POWER,AND CABLE TV LONGITUDINAL TO THE
<br /> Q a N WHEN SPECIFIED. � _J I (= ROADWAY, BACKFILL SHALL BE CONTROLLED
<br /> I-I DENSITY FILL SEE SECTION 3-9.5 OF THESE _
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<br /> Q v�t � . � . C�r Rzv Date '
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<br /> 05J12/2017
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<br /> � TYPICAL TRENCH SECTION
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<br /> _`~� TRENCHES E=� 614 �'
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<br /> NOTES NOTES �: �. "
<br /> PI PE ALLOWANCES 1. AS ACCEPTABLE ALTERNATIVES TO THE REBAR 1. ALL BACKFIL�MATERIAL SHALL BE PLACED W LIFTS .
<br /> SHOWN IN THE PRECAST BASE SECTION, FIBERS NOT TO EXCEED 12 INCHES BEFORE COMPACTION (�,
<br /> MAXIMUM (PLACED ACCORDING TO THE WSDOT STANDARD UNLESS AUTHORIZED BY THE ENGINEER DUE TO THE �
<br /> PIPE MATERIAL INSIDE SPECIFICATIONSj, OR WIRE MESH HAVING A CHARACTER OF THE MATERIA�AND THE rn
<br /> DIAMETER MINIMUM AREA OF 0.12 SQUARE INCHES PER COMPACTING EQUIPMENT. � �
<br /> REINFORCED OR ,, FOOT SHALL BE USED WITH THE MINIMUM .
<br /> PLAIN CONCRETE 12 REQUIRED REBAR SHOWN IN THE ALTERNATIVE z MIN. 95%COMPACTlON Q
<br /> PRECAST BASE SECTIQN. WIRE MESH SHALL NOT � 2. MECHANICAI.COMPACTION OF BACK FILL MATERIAL �'
<br /> ALL METAL PIPE 15" BE PLACED IN THE KNOCKOUTS. rr, � SHALL NOT BEGIN UNTIL THE DEPTH OF COMPACTED � '
<br /> �' BACKFILL MATERIAL IS 2 FEET ABOVE THE TOP OF z � �
<br /> *CPSSP 12„ 2. THE KNOCKOUT DIAMETER SHALL NOT BE c� PIPE
<br /> FRAM E AN D VAN ED G RATE (WSDOT STD.SPEC. 9-05.20) GREATER THAN 18". KNOCKOUTS SHALL HAVE A z N `
<br /> SOLID WALL PVC WALL THICKNESS OF 2" MINIMUM TO 2.5" �'s � �
<br /> (WSDOT STD. SPEC. 9-05.12(1)) 15 MAXIMUM. PROVIDE A 1.5" MINIMUM GAP J � 3. EACH LIFT SHALL BE MECHANICALLY COMPACTED TO M
<br /> THE REQUIRED DENSITY PRIOR TO PLACING '
<br /> BETWEEN THE KNOCKOUT WALL AND THE o SUBSEQUENT LIFTS OF BACKFILL MATERIAL W ? '
<br /> PROFILE WALI PVC Y � '
<br /> 15" OUTSIDE-0F THE PIPE.AFT�R THE PIPE IS � ,�x '
<br /> WSDOT STD. SPEC.9-05.12 2 Q �
<br /> INSTALLED, FILL THE GAP WITH 101NT MORTAR IN m Q ��J C
<br /> ` * CORRUGATED POLYETHYLENE ACCORDANCE WITH WSDOT STANDARD � 4. COMPACTION TESTS SHALL BE AS REQUIRED BY THE G
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<br /> ,Lp�` 2p,, STORM SEWER PIPE SPECIFICATION 9-04.3. � � � , / � CITY ENGINEER, BUT IN NO CASE LESS THAN 2 TESTS � � z
<br /> MIN. 90%COMPACTION ' w EVERY 200 FEET OF TRENCH (ONE AT SUBGRADE AND Q '
<br /> 3. THE MAXIMUM DEPTH FROM THE FINISHED N ONE AT 50%OF TRENCH DEPTHj. a n/ '--
<br /> GRADE TO THE LOWEST PIPE INVERT SHALL BE 5.5'. L���� �
<br /> 5 S�
<br /> � �� 4. THE FRAME AND GRATE MAYBE INSTALLED WITH 5. IN PLACE DENSITY AND MOISTURE CONTENT WILL BE � � Z •+
<br /> DETERMINED USING NUCLEAR METHOD,ASTM
<br /> THE FLANGE DOWN OR INTEGRALLY CAST INTO 2922 �1 n = :
<br /> THE ADIUSTMENT SECTION WITH FLANGE UP. Q �i � •
<br /> 6. LASORATORY MAXIMUM DRY DENSITY AND � � Q ' ,,+
<br /> 2",4", 6", 12" OR 24° 5. THE PRECAST BASE SECTION MAY HAVE A � , 1,
<br /> ROUNDED FLOOR,AND THE WALLS MAY BE OPTIMUM MOISTURE CONTENT WILL BE DE TE R M I N E D � �
<br /> SLOPED AT A RATE OF 1:24 OR STEEPER. USING THE MODIFIED PROCTOR METHOD IN
<br /> � z ACCORDANCE WITH ASTM D-1557. O �-- �< ', '
<br /> �g o 6. THE OPENING SHALL BE MEASURED AT THE TOP � MIN. 90%C�MPACTION w � '
<br /> OF THE PRECAST BASE SECTION. � �n � � W
<br /> o ONE#3 BAR HOOP FOR 6" HEIGHT �
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<br /> � INCREMENT,SPACED EQUALLY 7. ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER � � W
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<br /> ¢ � � � � ( � 90%COMPACTION L �
<br /> � � � #3 BAR HOOP � WSDOT STD PLAN B-25.60-00 ACCEPTABLE SUBSTITUTE w � � REQUIRED
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