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<br /> �� 1. CATCH BASIN INSERTS SHALL BE REMOVED AT THE 1. STABILIZED CONSTRUCTION ENTRANCE SHALL !
<br /> 5 MAX
<br /> END OF THE PROJECT. MEET THE REQUIREMENTS OF WSDOT STANDARD
<br /> TRIM SPECIFICATION SECTION 8-013(7). � American Property Development,Inc.
<br /> ' DRAINAGE GRATE I
<br /> ; 110 110th Avenue NE suite 550
<br /> 2. CATCH BASIN INSERTS ARE ONLY TO BE INSTALLED IN j Believue,WA 98004
<br /> DRAINAGE DEVICES PER THE MANUFACTURES'S � .
<br /> GRATE FRAME SHAL BE ENSDTALILOE IN CURB NLEfTSINLET INSERTS I
<br /> OVERFLOW BYPASS
<br /> � �
<br /> SEDIMENT BELOW WLET GRATE 3. CATCH BASIN INSERTS SHALL BE INSTALLED PRIOR TO � i i `
<br /> AND DEBRIS — DEVICE CLEARING AND GRADING ACTIVITY,OR UPON I i ,
<br /> �
<br /> PLACEMENT OF A NEW CATCH BASIN. � � 1O ,
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<br /> ; WSTALL DRIVEWAY CULVERT � � � "
<br /> FILTERED WATER 4. SEDIMENT SHALL BE REMOVED FROM THE UNIT j IF THERE IS A ROADSIDE DITCH � o
<br /> �b WHEN IT BECOMES ONE THIRD FULL OR IN � , PRESENT i �
<br /> ACCORDANCE WITH THE MANUFACTURES' i 2`' I tW' z
<br /> ', INSTRUCTIONS. i v W Q�
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<br /> 5. SEDIMENT REMOVAL SHALL BE ACCOMPLISHED BY , � Q � w m �
<br /> REMOVING THE INLET WSERTS EMPTYING,AND 25 p i ` W g�o
<br /> _ RE-INSTALLING IT INTO THE CATCH BASIN. DO NOT E X�ST�NG R�A ; � , J � o LL� "
<br /> WA S H S E D I M E N T I N T O S T O R M D R A I N S W H I L E � 30' MIN TY PI C A L j ` � � � z o,n Q
<br /> CLEANING. I , + c� H ��Q
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<br /> 6. SIZE THE BELOW INLET GRATE DEVICE(BIGD) FOR THE --�� - I U�I w M�
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<br /> STORM WATER STRUCTURE IT WILL SERVICE. -� � , -' �
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<br /> ' 7. THE BIGD SHALL HAVE A BUIIT-IN HIGH-FLOW RELIEF _ - _ _-- " � , z '
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<br /> SYSTEM (OVERFLOW BYPASS). Q
<br /> ;I SECTION VIEW _ � PERMEABLEBALLASTTYPICALSEE
<br /> 'I 8. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF - - ��� STANDARD SPECIFICATION � �
<br /> ,, THE BIGD WITHOUT SPIILING THE COLLECTED �\ ��\ SECTION 9-03.9(2) '
<br /> ' MATERIAL. �
<br /> ��� 1' M I N � ;
<br /> ', 9. PERFORM MAINTENANCE IN ACCORDANCE WITH LENGTH AS REQUIRED 100' MIN, EXCEPT DEPTH � '
<br /> , RETRIEVAL SYSTEM STANDARD SPECIFICATION 8-01.3(15j. MAY BE REDUCED TO 50' MIN FOR �
<br /> ', TYPICAL SITES W1TH LESS THAN ONE ACRE TYPICAL , coP�icHr �c 2005, nu. �cHrs R�vEv
<br /> OF EXPOSED SOIL OR APPROVED BY INSPECTOR ----�� i
<br /> DRAINAGE GRATE � SUBMITTAL/REVISIONS
<br /> 3 �/ 3 i � DATE DESCRIPTION
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<br /> � ' ; o PLACE CONSTRUCTION GEOTEXTILE FOR SOIL � 1 2J20�1 BID SET �
<br /> ° I ; � STABILIZATION FROM THE EDGE OF THE EXISTING \�---PROVIDE FUIL WIDTH OF � '
<br /> � ' i � ROADWAY TO THE CONSTRUCTION ENTRANCE, INGRESS/EGRESS AREA
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<br /> o ! BELOW INLET GRATE WSDOT STD PLAN 1-40.20-00 ACCEPTABLE SUBSTITUTE IF i o i
<br /> MAINTENANCE MEETS NOTES 1-5 � ISOMETRIC VIEW ,
<br /> N I DEVICE / —OVERFLOW BYPASS � a � C O N S T R U C T I O N E N T R A N C E W S D O T S T D P L A N I-8 0.1 0-0 2 A C C E P T A B L E S U B S T I T U T E
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<br /> I ATTACH IN A MANNER THAT POST SEE WSDOT STANDARD ', �
<br /> � 1. INSTALL THE ENDS OF THE SILT FENCE TO POINT i �
<br /> ASSURES FABRIC IS FIRMLY SPECIFICATIONS 8-01.3(9)A SLIGHTLY UPSLOPE TO PREVENT SEDIMENT FROM
<br /> i HELD BY THE BACKUP
<br /> i SUPPORT IN A WAY THAT FLOWING AROUND THE ENDS OF THE FENCE. � �
<br /> � REDUCES THE POTENTIAL � .
<br /> i FOR FABRIC TEARING 2. PERFORM MAINTENANCE IN ACCORDANCE WITH i �
<br /> � � — FASTEN GEOTEXTILE TO WSDOT STANDARD SPECIFICATIONS 8-01.3(9)A ! Q
<br /> i POST EVERY 6° IN O.C. AND 8-01.3(15). ; I _
<br /> BACKUP SUPPORT j � V�
<br /> 3. SPLICES SHALL NEVER BE PLACED IN LOW SPOTS �
<br /> � _ � OR SUMP LOCATIONS. IF SPIICES ARE IOCATED IN I, ^ '
<br /> i � z LOW OR SUMP AREAS,THE FENCE MAY NEED TO ; � V �
<br /> BACKFILLED& `� � SELF-LOCKING TIE-NYLONE BE REINSTALLED UNLE55 OTHERWISE APPROVED. i � .
<br /> COMPACTED ���_6/6(MIN GRADE} I W
<br /> i NATIVE SOIL—� �;EOTEXTILE '�� � 120# MIN TENSILE STRENGTH, 4. INSTALL SILT FENCING PARALLEL TO MAPPED I „�x
<br /> � � UV STABILIZED CONTOUR LINES. vV C
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<br /> '`��� � 5. DURING EXCAVATION, MINIMIZE DISTURBING � � Z
<br /> � THE GROUND AROUND TRENCH AS MUCH AS IS � Q . :
<br /> FEASIBLE,AND SMOOTH SURFACE FOLLOWING � � � "
<br /> �.,,. � , �. E X C A V A T I O N T O A V O I D C O N C E N T R A T I N G F L O W S. �
<br /> i �' \ �� COMPACTION MUST BE ADE4UATE TO PREVENT � �
<br /> � BURY GEOTEXTILE , � � UNDERCUTTING FLOWS. _
<br /> IN TRENCH ��
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<br /> GEOTEXTILE FOR SILT FENCE FF BACKUP SUPPORT
<br /> j � z SEE STANDARD SPECIFICATION i� 20>, STEEL POST / �(TYPICAL) � Q Q
<br /> Ni� SECTION 9-33.2 (1),TABLE 6 � F,j (TYPICAL) h � ,
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<br /> � INSTALL BACKUP SUPPORT FOR ��
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<br /> � Z I i � II ���L'��O TO PREVENT SILT LADEN WATER FROM ESCAPING THROUGH THE Q
<br /> Z � ��--'�;�r /'� � 6 Q�O� FENCE AT THE OVERLAP. 'I �
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<br /> �" � ---� �'�'� �� WSDOT STD PLAN I-30.10-02 ACCEPTABLE SUBSTITUTE r/1 �'�'1 � '
<br /> Q o ?�-�j/ � TYPICAL SILT FENCE v J v J ± �
<br /> = I� EXCEPT STEEL POST REQUIRED
<br /> � � ' / � � / P��P W WITH BACKUP SUPPORT i W ��
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