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ALBERTA RIDER
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TIGARD TUALATIN SCHOOL DISTRICT
ESC PLAN - LESS THAN 1 ACRE z
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Condit imany Approved { ]
SW BULL MOUNTAIN RD - PROPOSED STORM LINE See Letter to:Follow [ 1 4
a - PROPOSED CONCRETE RAMP Attached
a By: i;t�■ ;gate:�� ' - CONSTRUCTION STAGING_r �� /I d tart:, O F ``'� f,prove p SvA'*- shall be on job site.E IIIIIIII:IIIIIII :1:z - CATCH BASIN - TRAPPED TYPE "1 o - PROPOSED STORM CLEANOUT
OF __ OPY
SW DURHAM RD /"r1 - INLET PROTECTION
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N j INSTALL INLET PROTECTION CWS STANDARD EROSION CONTROL NOTES W
-■ 1. WHEN RAINFALL AND RUNOFF OCCURS DAILY INSPECTIONS OF THE EROSION AND SEDIMENT
�' �/ �/ �/ �/ �/ \/ Q Q Q Q Q Q D Q CONTROLS AND DISCHARGE OUTFACES MUST BE PROVIDED BY SOME ONE KNOWLEDGEABLE AND -i C9
EXPERIENCED IN THE PRINCIPLES, PRACTICES, INSTALLATION, AND MAINTENANCE OF EROSION AND I-
'� ♦ F V V V V 0 7 v V V V V V V V v\ 1 SEDIMENT CONTROLS WHC WORKS FOR THE PERMITTEE. O 0
�,�♦ 2. CONSTRUCTION ACTIVITIES MUST AVOID OR MINIMIZE EXCAVATION AND CREATION OF BARE LL -�/
VICINITY MAP STAGING AREA V V V V V V V V V V V V V V V VI I GROUND FROM OCTOBER 1 THROUGH MAY 31 EACH YEAR. 1- LJ_
3. DURING WET WEATHER PERIOD, TEMPORARY STABILIZATION OF THE SITE MUST OCCUR AT THE END
SCALE: NTS V V V ( OF EACH WORK DAY. z
V I 4. SEDIMENT CONTROLS MUST BE INSTALLED AND MAINTAINED ON ALL DOWN GRADIENT SIDES OF O ..q.2
THE CONSTRUCTION SITE AT ALL TIMES DURING CONSTRUCTION. THEY MUST REMAIN IN PLACE
UNTIL PERMANENT VEGETATION OR OTHER PERMANENT COVERING OF EXPOSED SOIL IS Q 0
0 V �' ESTABLISHED.
V V 5. ALL ACTIVE INLETS MUST HAVE SEDIMENT CONTROLS INSTALLED AND MAINTAINED AT ALL TIMES z J
• • UUSHAPEDNFILTER CONSTRUCTION.
IS REQUIRED OTHERWISE
CATCH BASINS.TED AND ATTACHABLE, 0 D O
SITE LOCATION , o I - z 0
6. SIGNIFICANT AMOUNTS OF SEDIMENT WHICH LEAVES THE SITE MUST BE CLEANED UP WITHIN 24 -
HOURS AND PLACED BACK ON THE SITE AND STABILIZED OR PROPERLY DISPOSED. THE CAUSE
THE ALBERTA RIDER PLAYGROUND IS ON THE NE V V V V V V V V V V V V �I OF THE SEDIMENT RELEASE MUST BE FOUND AND PREVENTED FROM CAUSING A RECURRENCE OF O 0
CORNER OF ALBERTA RIDER ELEMENTARY SCHOOL AT THE DISCHARGE WITHIN THE SAME 24 HOURS. ANY IN-STREAM CLEAN UP OF SEDIMENT SHALL BE I..L O
14850 SW 132ND TER, OFF OF SW BULL MOUNTAIN RD. r V V V V V V 0 0 0 V 0 0 0 0 0 PREFORMED ACCORDING TO THE OREGON DEPARTMENT OF STATE LANDS REQUIRED TIME FRAME. W
LOCATED IN SECTION 9, TOWNSHIP 2 SOUTH, RANGE 1 Q `0 ,,0' 0 �7 �/ \/ VV `I' 0 7. SEDIMENT MUST NOT BE INTENTIONALLY WASHED INTO STORM SEWERS, DRAINAGE WAYS, OR Z
WEST, WILLAMETTE MERIDIAN, WASHINGTON COUNTY, WATER BODIES. �-+-OREGON V V V V V V V V V V V V V V VII 8. SEDIMENT MUST BE REMOVED FROM BEHIND ALL SEDIMENT CONTROL MEASURES WHEN IT HAS f:/ 0 1---
REACHED A HEIGHT OF 1/3RD THE BARRIER HEIGHT, AND PRIOR TO THE CONTROL MEASURES LU
i J r V V V V V V V V V V V V V V V 1 REMOVAL. _ r �, , �"
9. CLEANING OF ALL STRUC■�JRES WITH SUMPS MUST OCCUR WHEN THE SEDIMENT RE RETENTION Q _I Z
V V V V V V V V V V V V V V V VI CAPACITY HAS BEEN REDUCED BY 50% AND AT COMPLETION OF PROJECT. - < 0
10. ANY USE OF TOXIC OR 0 HER HAZARDOUS MATERIALS MUST INCLUDE PROPER STORAGE,
p � v 0 0 v 0 0 v 0 7 v W
VERTICAL DATUM • _ 11. THEE PERMITTEE MUST PROPERLY MANAGE HAZARDOUS WASTES, USED OILS, I
, SO SOILS, Q
BASIS OF ELEVATIONS WAS ASSUMED. N VV • CONCRETE WA DURING CONSTRUCTION.
WASTE, WASTE, OR OTHER TOXIC SUBSTANCES DISCOVERED � 0 0
V V V V 110V VI 12. THE APPLICATION RATE OF FERTILIZERS USED TO REESTABLISH VEGETATION MUST FOLLOW L.L a b
..... .....:.... .. ,._ ., MANUFACTURER'S RECOMMENDATIONS. NUTRIENT RELEASES FROM FERTILIZERS TO SURFACE W
• V V V V ■ V V \'' WATERS MUST BE MINIMIZED. TIME RELEASE FERTILIZERS SHOULD BE USED AND CARE SHOULD �0�n Q
I BE MADE IN APPLICATION OF FERTILIZERS WITHIN ANY WATER WAY RIPARIAN ZONE. I"" V
BASIS OF BEARINGS 0 0 0 V V V V V V V 13. OWNER OR DESIGNATED P`=RSON SHALL BE RESPONSIBLE FOR PROPER INSTALLATION AND J -
MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL MEASURES, IN ACCORDANCE WITH Q H H
V V V V V V V V V i CURRENT CLEAN WATER SERVICES STANDARDS AND STATE, AND FEDERAL REGULATIONS.
BASIS OF BEARINGS WAS ASSUMED. 14. PRIOR TO ANY LAND DISTURBING ACTIVITIES, THE BOUNDARIES OF THE CLEARING LIMITS, m
V V \ V V V V V V VEGETATED BUFFERS, AND ANY SENSITIVE AREAS SHOWN ON THIS PLAN SHALL BE CLEARLY
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\/ \/ - VV \/ \/ 1 DELINEATED IN THE FIELD. UNLESS OTHERWISE APPROVED, NO DISTURBANCE IS PERMITTED -BEYOND THE CLEARING LIMITS. THE OWNER/PERMITTEE MUST MAINTAIN THE DELINEATION FOR THE
SITE EROSION CONTROL NOTES V ` • r 0 0 n 0 0 0 VI DURATION OF THE PROJECT. NOTE: VEGETATED CORRIDORS TO BE DELINEATED WITH ORANGE
CONSTRUCTION FENCE OR APPROVED EQUAL.
1. NO OVERLAND STORMWATER RUNOFF IS EXPECTED TO V V V Q Q 0 0 0 0 'V Q ` 15. PRIOR TO ANY LAND DISTURBING ACTIVITIES, THE BMPS THAT MUST BE INSTALLED ARE GRAVEL
DISCHARGE FROM CONSTRUCTION AREA CONTRACTOR TO CONSTRUCTION ENTRANCE PERIMETER SEDIMENT CONTROL, AND INLET PROTECTION. THESE BMPS
OBSERVE OVERLAND STORMWATER RUNOFF THROUGHOUT �� 0 0 V Q 0 V V 0 p Q Q Q 1,' MUST BE MAINTAINED FOR THE DURATION OF THE PROJECT.
PROJECT. IF ANY SEDIMENT TRANSPORT IS OBSERVED *. 16. IF VEGETATIVE SEED MIXES ARE SPECIFIED, SEEDING MUST TAKE PLACE NO LATER THAN
CONTRACTOR TO INSTALL SEDIMENT FENCE AT LOCATION OF 0 • I w • 0 0 0 0 I SEPTEMBER 1ST; THE TYPE AND PERCENTAGES OF SEED IN THE MIX ARE AS IDENTIFIED ON THE
DISCHARGE FROM CONSTRUCTION AREA PLANS OR AS SPECIFIED BY THE DESIGN ENGINEER.
2. CONSTRUCTION ENTRANCE - CONTRACTOR TO INSTALL Q I Q Q Q Q \' 17. WATER-TIGHT TRUCKS MUST BE USED TO TRANSPORT SATURATED SOILS FROM THE o
CONSTRUCTION ENTRANCE AT THE ACCESS POINT OF THE I CONSTRUCTION SITE AN APPROVED EQUIVALENT IS TO DRAIN THE SOIL ON SITE AT A
PLAYGROUND. CONSTRUCTION ENTRANCE TO BE V V • V V V DESIGNATED LOCATION USING APPROPRIATE BMPS; SOIL MUST BE DRAINED SUFFICIENTLY FOR
CONSTRUCTED PER CWS STANDARD DETAIL. MINIMAL SPILLAGE. w
V V V V V /l 18. ALL PUMPING OF SEDIMENT LADEN WATER MUST BE DISCHARGED OVER AN UNDISTURBED, °
PREFERABLY VEGETATED AREA, AND THROUGH A SEDIMENT CONTROL BMP (I.E. FILTER BAG).
V V V V I 19. THE ESC PLAN MUST BE KEPT ONSITE. ALL MEASURES SHOWN ON THE PLAN MUST BE INSTALLED w
PROJECT TEAM ' " V V f SYSTEM, ROADWAY, OR OTHER SEDIMENT LADEN WATER DOES NOT ENTER A SURFACE WATER o
I 20. THE ESC MEASURES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED - - -
V V Via SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD,THESE MEASURES SHALL BE UPGRADED AS I
OWNER V • V Q Z' 21. WRIT EN EOSC LOGS MAINTAIN ARE SUGGES ED WITH
TO BELMAINTAINED ONSITE AND AVAILABLE TO DISTRICT
TIGARD TUALATIN SCHOOL DISTRICT , INSPECTORS UPON REQUEST.
ATTN: PHIL WENTZ V • '' V7 V ' 22. IN AREAS SUBJECT TO WIND EROSION, APPROPRIATE BMPS MUST BE USED WHICH MAY INCLUDE v.)
6960 SW SANDBURG ST _ V' THE APPLICATION OF FINE WATER SPRAYING, PLASTIC SHEETING, MULCHING, OR OTHER APPROVED f \C,\(c-F\E�PRO �p
TIGARD, OREGON 97223 V V V v o . MEASURES. Z �(< c q 4
PHONE: (503) 431-4017 V a 0 23. ALL EXPOSED SOILS MUST BE COVERED DURING WET WEATHER PERIOD. W 7862u'WI
CIVIL ENGINEER m.n Digital Signature 2013.06.2
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ATTN: MATT LEWIS SCHOOL BUILDING .,,,� 0 TyEw
5415 SW WESTGATE DRIVE, SUITE 100 O
PORTLAND, OREGON 97221 OREGON UTILITY
PHONE: (503)-419-2500 NOTIFICATION CENTER Q EXPIRES:12/31/2014
FAX: (503)-419-2600 ,I900°332®2344 Z DATE I 06-25-2013
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1eFORE l',� 0 CHECKED I MCL
VII .
D PROJECT# 1 21303370
OREGON LAW REQUIRES YOU TO FOLLOW RULES ADOPTED BY THE OREGON �/ SHEET TITLE
UTILITY NOTIFICATION CENTER. THOSE RULES ARE SET FORTH IN OAR ALBERTA RIDER EC
952-001-0010 THROUGH OAR 952-001-0090. YOU MAY OBTAIN COPIES OF
SCALE: 1"=10' THESE RULES FROM THE CENTER BY CALLING 503-232-1987. IF YOU HAVE (I) SHEET NUMBER
ANY QUESTIONS ABOUT THE RULES, YOU MAY CONTACT THE CENTER. YOU Z
10 5 0 10 MUST NOTIFY THE CENTER AT LEAST TWO BUSINESS DAYS, BEFORE AR_ Ec
COMMENCING AN EXCAVATION. CALL 503-246-6699. 0
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1"ABOVE BOTTOM OF CONCRETE LANDING/RAMP(VERTICAL RELATIONSHIP Z d) 8
4.0' WITH EXISTING WALKWAY AND PLAY g Li d
EXISTING CURB SURFACE VARIES ALONG RAMP.) M
(VERTICAL Cr c' a Ei
RELATIONSHIP TO 0 1
RAMP VARIES) F' %-' �t VARIES(BOTTOM OF CONCRETE
y A//�\/' glIA . ` ' Lile.... TO BE 16"BELOW LANDING
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AND RAMP
4",3/4"-0 CRUSHED ROCK ,,fftek+:v!:
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�`'� `'' 1.0' SEE PLAYGROUND CROSS SECTION
ON THIS SHEET FOR DETAILS
SECTION B
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v • V • V • V. V V D V V V •
V V' V V V EXISTING 4"PERFORATED V V V -" '
IN PIPE TO BE REPLACED. INSTALL 4 DOWELS @ 9"O.C. DRILL EXISTING
v V 0 v v-0- SEE NOTE ON THIS SHEET. V V V V V I CONCRETE AND EPDXY 12"#3 REBAR DOWELS
WITH 6"EXPOSURE.GREASE EXPOSED
V V II DOWELS PRIOR TO CASTING NEW CONCRETE.
V 0 7 - 2x2 W0.3/0.3 WELDED WIRE MESH w
EXISTING PLAY EQUIPMENT TO BE PRESERVED IN 0 I, 1"ABOVE BOTTOM OF CONCRETE 0
PLACE. DO NOT IMPACT SUBGRADE WITHIN 3 FEET 8"MIN. DEPTH AT PROPOSED EXISTING
END OF RAMP CONCRETE RAMP CONCRETE < F�
V V OF ANY STRUCTURE,TYPICAL. . ' `
EXISTING 15"STORM LINE V V V V V V V V V V V V V V I
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V V V V V V V V V V V V V V V `�I 'v//,�% w//w � 12.0'
- 0 Q Q 4",3/4"-0 CRUSHED ROCK z Q 0
SEE PLAYGROUND
REPLACE PLAYGROUND SURFACE I CROSS SECTION ON THIS EX. COMPACTED SUBGRADE Q
v PER SECTION ON THIS SHEET. V V V V V V V V I SHEET FOR DETAILS ^ z O
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SECTION A
0V0 � 7VVVVVVVVV1' NOTE: H 0 Ch
4 1. RAMP TO SLOPE AT 1:12 TO BOTTOM OF BARK MULCH SECTION.
O V V V V V C" Z
I v V V V ' V Vi PLAYGROUND RAMP DETAIL (9 j-
v v v v V ♦ • v \,'
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V V V EXISTING PLAY EQUIPMENT TO BE PRESERVED IN V V V V V V V -�// Q 0
PLACE.DO NOT IMPACT SUBGRADE WITHIN 3 FEET �� L.L J (.9 V OF ANY STRUCTURE,TYPICAL. 0 0 0 0 0 V !, F-
7 v \ V V V V V V
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V ` • Y V EXISTING 4"PERFORATED v -I EX.CURB EX.CURB W
PIPE TO BE REPLACED.
12"ENGINEERED WOOD CHIPS
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, 3.0" EX. LANDSCAPED AREA Q
SEE NOTE ON THIS SHEET.7v EX.SIDEWALK
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V V • V V • • V V V V V �I w//�//v//v/• Q H
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' %/ //\/\/\/\//\r\/ /�� / // /r / / ./ / �\//I /\// /\/�\/•0 � Q Q Q Q \ EX.COMPACTED SUBGRADE
V V • V V V I ENSURE EXISTING CURB IS 12 DRAINAGE
COURSE CONTRACTOR TO REPLACE EXISTING
EXISTING PLAY EQUIPMENT TO BE
NOT UNDERMINED, TYP. SUBSURFACE DRAIN (SEE NOTE 3)
• V PRESERVED IN PLACE. DO NOT IMPACT O D �i GEOTEXTILE FILTER GEOTEXTILE SUBGRADE SEPARATION
V SUBGRADE WITHIN 3 FEET OF ANY FABRIC(SEE NOTE 1) FABRIC(SEE NOTE 2)
STRUCTURE,TYPICAL. /
. V V 'I
/ NOTES: Z
• V V 'f 1. GEOTEXTILE FILTER FABRIC TO BE A NON-WOVEN, NEEDLE-PUNCHED MATERIAL WITH A FLOW RATE OF AT o
• • LEAST 110 GPM/SQ.FT. (GEOTEX 401 OR APPROVED EQUAL)PER SPECIFICATIONS. a_
V /- 2. GEOTEXTILE SUBGRADE SEPARATION FABRIC TO BE A WOVEN, POLYPROPYLENE MATERIAL WITH A VERY
• . ' Q V ' wi LOW TO ZERO FLOW RATE (MIRAFI 500X OR APPROVED EQUAL)PER SPECIFICATIONS,TO MINIMIZE o
V 777- 4.00'� INFILTRATION TO SUBGRADE.
�.� 3. SUBSURFACE DRAIN TO BE 4"PVC PERFORATED PIPE PER SPECIFICATIONS.
12 00� ' 4. DRAIN ROCK PER SPECIFICATIONS.
INSTALL 4 DOWELS @ 12"O.C. PER 0 5. ENGINEERED WOOD CHIPS PER SPECIFICATIONS. o
RAMP DETAIL ON THIS SHEET. V4.• �;�0� . 6. ROCK SECTION TO BE SLOPED AT MINIMUM 1%TOWARD SUBSURFACE DRAIN.
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111110, '. 5. PLAYGROUND CURBS TO BE PROTECTED AND REMAIN IN PLACE.CONTRACTOR TO REPAIR OR REPLACE
ANY DAMAGES DURING CONSTRUCTION ACTIVITIES.
A CONSTRUCT RAMP PER
B DETAIL ON THIS SHEET. PLAYGROUND CROSS SECTION ��//��
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EXPIRES:12/31/2014
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MirU CHECKED I ma PROJECT# 1 21303370
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SCALE: 1"=10' (I) SHEET NUMBER
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