HomeMy WebLinkAboutR-401453i7
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2'
9.0'
NOTE:
TYPICAL BIORETENTION CELLS RETENTION CELLS IN
NORTH ROW OF PARKING CELLS SHALL BE MIRRORED.
BIORETENTION CELL LAYOUT 1
TYPICAL AT 675A, 67513, 67413,
674C, 67213, 672C, 671 B, & 671 C
C17E SCALE: 1" = 5'
C18E
C17F
C18F
C17E
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m
NOTE:
TYPICAL BIORETENTION CELLS RETENTION CELLS IN
NORTH ROW OF PARKING CELLS SHALL BE MIRRORED.
BORETENTON
SCALE: 1 " = 5'
LAYOUT AT 6 7 2 A
2 1/2" TYP.
I 5"
DRILL HOLES THRU PAVEMENT TO MATCH WHEELSTOP
HOLE PATTERN. DRIVE 24" LONG REBAR THROUGH
WHEELSTOP AND PAVEMENT INTO SUBGRADE.
1" RADIUS TYP.
PREFABRICATED WHEEL STOP
TOP OF PAVEMENT
(3) #4 REBAR 2'-0" LONG
PER WHEEL STOP
C18E
\1-1/
BIORETENTION.
SCALE: 1 " = 5'
LAYOUT AT 6 71 A
GENERAL NOTES
1. HORIZONTAL DATUM: WASHINGTON STATE COORDINATE SYSTEM, NORTH
ZONE, NORTH AMERICA DATUM 1983(91). VERTICAL DATUM: NATIONAL
GEODETIC VERTICAL DATUM 1929 (NGVD29). VERTICAL DATUM CONVERSION:
NGVD29 TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD88) _
NGVD29 + 3.60 FEET.
2. THERE SHALL BE NO EXPOSED GALVANIZED MATERIALS, COATINGS OR ZINC
APPLIED SURFACE TREATMENTS ON ANY EXTERIOR OR UNDERGROUND
MATERIALS OR SURFACES. ALL GALVANIZED OR ZINC APPLIED MATERIALS
OR COATINGS SHALL BE PERMANENTLY PAINTED OR COATED TO PREVENT
EXPOSURE OF THE GALVANIZED/ZINC MATERIALS PRIOR TO INSTALLATION
OR COMPLETION OF CONSTRUCTION.
3. PERMANENT WATER QUALITY TREATMENT FACILITIES SHALL NOT BE USED TO
CONVEY OR CONTAIN CONSTRUCTION STORM WATER. NEW FACILITIES SHALL
BE KEPT OFFLINE UNTIL PROJECT IS COMPLETE. THE CONTRACTOR SHALL
CLEAN AND FLUSH ALL PARTS OF THE SYSTEM PRIOR. SEE GENERAL NOTES
ON SHEET C501-1A AND C501-113.
4. SEE SHEETS C17E, C17F, C18E, AND C18F FOR OVERFLOW STRUCTURE
INFORMATION AND CONVEYANCE PIPE INFORMATION.
5. SEE BIORETENTION LANDSCAPING PLANS ON SHEETS L501-7A THROUGH
1_501-713 FOR PLANTING DETAILS.
6. BIORETENTION SOIL MEDIA SHALL BE PER THE BIORETENTION SOIL MEDIA
STANDARD SPECIFICATIONS PROVIDED IN REFERENCE SECTION 11—C OF
THE 2017 CITY OF RENTON SURFACE WATER DESIGN MANUAL. SEE SHEET
C501-6G.
7. STREAMBED COBBLES SHALL BE PER WSDOT STANDARD SPEC SECTION
9-30.11(2)
8. SLOTTED UNDERDRAIN SHALL BE SLOTTED SUBSURFACE DRAIN PVC PER
ASTM D1785 SCH 40. SLOTS SHOULD BE CUT PERPENDICULAR TO THE
LONG AXIS OF THE PIPE AND BE 0.04 TO 0.069 INCHES BY 1 INCH LONG
AND BE SPACED 0.25 INCHES APART (SPACED LONGITUDINALLY). SLOTS
SHOULD BE ARRANGED IN FOUR ROWS SPACED ON 45—DEGREE CENTERS
AND COVER 1/2 OF THE CIRCUMFERENCE OF THE PIPE. OBSERVATION
WELL CONSTRUCTED OF NON —PERFORATED MATERIAL SHALL BE LOCATED AT
END OF PIPE. OBSERVATION PORT SHALL HAVE LOCKING CAST—IRON LID.
9. EXTRUDED CURB SHALL BE WSDOT STD PLAN F-10.42-00 TYPE 6
10. INSTALL NEW/SALVAGED CONCRETE WHEELSTOP PER DETAIL 5, SHEET
C501-6E.
11. CONTRACTOR SHALL VERIFY DEPTH TO SEASONAL HIGH GROUNDWATER PRIOR
TO CONSTRUCTION AND NOTIFY ENGINEER IMMEDIATELY IF DEPTH IS LESS
THAN 7.5—FEET FROM EXISTING GRADE.
12. CONTRACTOR'S AS —BUILT RECORD DOCUMENTS SHALL INCLUDE IN —PLACE
INFILTRATION RATE FOR EACH COMPLETE BIORETENTION CELL. INFILTRATION
RATE TEST SHALL BE PERFORMED USING THE PILOT INFILTRATION TEST (PIT)
METHOD AT THE FINISHED SURFACE OF THE BIORETENTION SOIL MIX WITH A
MAXIMUM 6—INCH PONDING DEPTH.
CONSTRUCTION NOTES
EXISTING PARKING STALL STRIPING
PROVIDE EXTRUDED CURB, MATCH FACE OF CURB TO EXISTING
PARKING STALL STRIPING
CONCRETE WHEEL STOP, MATCH FACE OF WHEEL STOP TO
EXISTING PARKING STALL STRIPING
R� 6" SLOTTED UNDERDRAIN
:� OBSERVATION WELL
EDGE OF ASPHALT/TOP OF FREE BOARD
7� TOP OF PONDING/BOTTOM OF FREE BOARD
:� TOP OF SOIL/BOTTOM OF PONDING
OVERFLOW CONVEYANCE PIPE CONNECTIONS PER PLAN
10 PROVIDE 18—INCH MINIMUM WIDTH CURB CUT
11 GRADE TO DRAIN TO BIORETENTION CELL, SEE LANDSCAPING
PLANS FOR TOPSOIL REQUIREMENTS.
12 NEW PARKING STALL STRIPING
BIORETENTION CELL LAYOUT 2 SAVAGED WHEEL STOP INSTALLATION
2 TYPICAL AT 6 7 4A & 6 7 3 A SCALE: NTS
N
C17E SCALE: 1" = 5'
C18E
R-401453
C17F
C18F IN COMPLIANCE WITH CITY OF RENTON STANDARDS
iBergerABAMV3 CIVIL PERMIT SET DEVELOPMENT ENGINEERING +
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Ann Fowler 12/14/2018
CALL 48 HOURS
BEFORE YOU DIG 33301 9th Avenue South, Suite 300
DESIGN BY: BERGERABAM DATE 10/22/2018 SURFACE WATER UTILITY
1- 800- 424- 5555 Federal Way, Washington 98003-2600
(206) 431-2300 Fax: (206) 431-2250 rstraka 12/14/2018
SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE DRAWN DATE SUBTITLE CURRENT REVISION SYMBOL DATE
ACCEPTABILITY HL 10/09/18 STORM DETAILS C180242 O R G 10/09/18
ORIG MITIGATION HANGAR C180242 ABAM SPT 10/09/18 ��N P. T THIS DESIGN AND/OR CHECKED
of WA3A, �i' SPT 10/09/18 SHEET
SPECIFICATION IS APPROVED
APPROVED BY DEPT. DATE ENGINEER 10/09/18 TITLE MITIGATION HANGAR
CHECKED C501-6E C45
RENTON SITE
�o R 3'2" o ww JOB NO. COMP N0.
APPROVED C 180242
APPROVED CIVIL MASTER SITE RENTON, WA DWG NO. RTN-YD-0501-6E
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