HomeMy WebLinkAboutR-394708GRADING NOTES
NE1/4OFS321T23N, R 5 E
M 1. THE DESIGN SHOWN IS BASED UPON THE ENGINEER'S UNDERSTANDING OF THE EXISTING CONDITIONS. THE PLAN DOES NOT
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REPRESENT A DETAILED FIELD SURVEY. THE EXISTING CONDITIONS SHOWN ON THIS PLAN SHEET ARE BASED UPON THE SURVEY
PREPARED BY PACE ENGINEERS, INC., DATED 1 /16/2015. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING FIELD CONDITIONS
PRIOR TO BIDDING THE PROPOSED SITEWORK IMPROVEMENTS. IF CONFLICTS ARE DISCOVERED, THE CONTRACTOR SHALL NOTIFY
I
THE OWNER PRIOR TO INSTALLATION OF ANY PORTION OF THE SITEWORK WHICH WOULD BE AFFECTED. IF CONTRACTOR DOES NOT
LJJ ACCEPT EXISTING SURVEY, INCLUDING TOPOGRAPHY AS SHOWN ON THE PLANS, WITHOUT EXCEPTION, HE SHALL HAVE MADE, AT
~ HIS OWN EXPENSE, A TOPOGRAPHIC SURVEY BY A REGISTERED LAND SURVEYOR AND SUBMIT IT TO THE OWNER FOR REVIEW.
2. CAUTION - NOTICE TO CONTRACTOR
THE CONTRACTOR IS SPECIFICALLY CAUTIONED AT THE LOCATION AND/OR ELEVATION OF EXISTING UTILITIES AS SHOWN ON THESE
PLANS IS BASED ON RECORDS OF THE VARIOUS UTILITY COMPANIES AND, WHERE POSSIBLE, MEASUREMENTS TAKEN IN THE FIELD.
THE INFORMATION IS NOT BE RELIED ON AS BEING EXACT OR COMPLETE. THE CONTRACTOR MUST CALL THE APPROPRIATE UTILITY
COMPANY AT LEAST 48 HOURS BEFORE ANY EXCAVATION TO REQUEST EXACT FIELD LOCATION OF UTILITIES. IT SHALL BE THE
RESPONSIBILITY OF THE CONTRACTOR TO RELOCATE ALL EXISTING UTILITIES WHICH CONFLICT WITH THE PROPOSED IMPROVEMENTS
SHOWN ON THESE PLANS.
3. THE SPOT ELEVATIONS INDICATED ON THIS PLAN REPRESENT THE DESIGN TOP OF PAVEMENT, UNLESS OTHERWISE NOTED.
4. CONTRACTOR IS RESPONSIBLE FOR DEMOLITION OF EXISTING STRUCTURES INCLUDING REMOVAL OF ANY EXISTING UTILITIES SERVING
THE STRUCTURE. UTILITIES ARE TO BE REMOVED TO THE RIGHT-OF-WAY.
5. ALL UNSURFACED AREAS DISTURBED BY GRADING OPERATION SHALL RECEIVE 4 INCHES OF TOPSOIL. CONTRACTOR SHALL APPLY
STABILIZATION FABRIC TO ALL SLOPES 3H:1V OR STEEPER. CONTRACTOR SHALL STABILIZE DISTURBED AREAS WITH GRASS IN
ACCORDANCE WITH LOCAL SPECIFICATION UNTIL A HEALTHY STAND OF GRASS IS OBTAINED.
6. ALL CUT AND FILL SLOPES SHALL BE CONSTRUCTED PER THE IBC CODE AND APPLICABLE LOCAL REGULATION. ALL CUT AND FILL
SLOPES SHALL BE 3:1 OR FLATTER UNLESS OTHERWISE NOTED.
7. CONTRACTOR SHALL ASSURE POSITIVE DRAINAGE AWAY FROM BUILDINGS FOR ALL NATURAL AND PAVED AREAS AND SHALL GRADE
ALL AREAS TO PRECLUDE PONDING OF WATER.
8. ALL POLLUTANTS OTHER THAN SEDIMENT ON -SITE DURING CONSTRUCTION SHALL BE HANDLED AND DISPOSED OF IN A MANNER
THAT DOES NOT CAUSE CONTAMINATION OF STORMWATER. THE CONTRACTOR SHALL ADHERE TO ALL TERMS AND CONDITIONS AS
OUTLINED IN THE GENERAL N.P.D.E.S. PERMIT FOR STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES.
9. PROPERTIES AND WATERWAYS DOWNSTREAM OF THE SITE SHALL BE PROTECTED FROM EROSION DUE TO INCREASES IN THE
VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FROM PROJECT SITE.
10. CONSTRUCTION SHALL COMPLY WITH ALL APPLICABLE GOVERNING CODES AND BE CONSTRUCTED TO SAME.
11. CONTRACTOR TO REMOVE UNSUITABLE SOILS LOCATED WITHIN THE BUILDINGS SPLAY LINE OF THE FOOTINGS.
12. FOR BOUNDARY AND TOPOGRAPHIC INFORMATION REFER TO PROJECT SURVEY.
13. FOR LAYOUT INFORMATION REFER TO THE SITE PLAN AND HORIZONTAL CONTROL PLAN.
STORM DRAINAGE NOTES
0 I
I0
A
I
CONNECT TO EX CB
4 IE 12" S=395.50
ADJUST RIM AS NEEDED
4E
CB 2 RIM=398.91
I
IE 24" CONC (N)=393.5
IE 24" CONC (S)=393.5
IE 24" CONC (E)=395.1
IE 12" CONC (W)=395.9
399.76
BTM=391.4
` MATCH EX 399.59±
�SD- 1
;.
I
PROVIDE 5' SEPARATION
BETWEEN MODULAR
4
WETLAND AND STREET LIGHT
n n
n 0 TC 399.44
W W TP 398.94
TC 39918
N
C6
M
N
SDMH RIM=400.78
IE 12" CMP (S)=395.8
W/ OVERFLOW TOP=399.1
IE 48" CMP (N)=
SDMH RIM=400.33
IE 12" CMP (N)=395.63
IE 24" CMP (E)=395.4
IE 24" CMP (W)=395.4
TOP 12" SS PIPE=395.6
SDMH RIM=401.56
_
SDMH
24" CMP (W)=395.6
TOP=399.2
IE 36" CMP (SE)=395.6
IE 8" CMP (S)=396.8
BTM=392V
400.73
�.- 3
7:ME12"--395.60,'_L
12395.60 J
398
9�I " CMP (N)IL
TP 39.95
537
�O-
I o
TP 398.90 y
TIC 399.39
TP 398TP 89
W
I
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o,
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1. EXISTING DRAINAGE STRUCTURES TO BE INSPECTED AND REPAIRED AS NEEDED, AND EXISTING PIPES TO BE CLEANED OUT TO
REMOVE ALL SILT AND DEBRIS.
2. IF ANY EXISTING STRUCTURES TO REMAIN ARE DAMAGED DURING CONSTRUCTION IT SHALL BE THE CONTRACTORS RESPONSIBILITY
TO REPAIR AND/OR REPLACE THE EXISTING STRUCTURE AS NECESSARY TO RETURN IT TO EXISTING CONDITIONS OR BETTER. MATCH E)
3.
STORM DRAINAGE PIPE WITH LESS THAN 2'-0" COVER SHALL BE CLASS IV REINFORCED CONCRETE PIPE, OR APPROVED EQUAL TO
SUSTAIN H-20 LOADING.
I
SD
41.10'
I
4.
ALL ON -SITE STORM DRAINAGE PIPE SHALL BE SMOOTH WALLED INTERIOR, MANUFACTURER'S VERIFICATION OF MANNING'S
I
ROUGHNESS COEFFICIENT N=0.012 OR LESS.
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5.
PRECAST STRUCTURES MAY BE USED AT CONTRACTORS OPTION.
6.
ALL CATCH BASINS AND AREA DRAINS ARE TO BE SITUATED SUCH THAT THE OUTSIDE EDGE OF GRATE FRAME IS AT TOE OF
CURB OR FLOWLINE OF GUTTER (WHERE APPLICABLE).
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7.
CATCH BASIN INLET PROTECTION / EROSION CONTROL TO BE USED FOR ALL NEW INLETS.
CB
RIM=398.74
8.
ALL STORM PIPE ENTERING STRUCTURES SHALL BE GROUTED TO ASSURE CONNECTION AT STRUCTURE IS WATERTIGHT.
IE 24" CON
(S)=394.0
9.
ALL STORM SEWER MANHOLES IN PAVED AREAS SHALL BE FLUSH WITH PAVEMENT, AND SHALL HAVE TRAFFIC BEARING RING AND
8TM=392.4
COVERS. MANHOLES IN UNPAVED AREAS SHALL BE 6" ABOVE FINISH GRADE. LIDS SHALL BE LABELED "STORM SEWER".
10.
CONTRACTOR SHALL CONNECT ROOF DRAIN LEADERS AND FOOTING DRAINS TO PROPOSED STORM DRAINS AS SHOWN.
11.
CONTRACTOR SHALL CONFIRM STRUCTURE CONSTRUCTABILITY WITH MANUFACTURER PRIOR TO DELIVERY AND INSTALLATION.
STRUCTURE TABLE
#
TYPE
RIM
IE IN
IE OUT
1
0
FLOW CONTROL MH
400.63
-469.49-
395.89
335.68-
395.89
34 8-
O
NOT USED
-
-
-
O
MODULAR WETLAND
400.80
396.95
395.62
4
0
TYPE 1 CB
400.08
399�8
397.15
35�fr
397.04
396 fr
O
TYPE 1 CB
399.77
397.05
397.05
e
0
TYPE 1 CB
399.95
399��
397.00
396.99
3-
3-
7
0
CB 1 TYPE
400.43
-408.48
398.38
-1398r.-90-
398.18
_3H.-90-
O
TYPE 1 CB
400.480
_
398.37
398.1
O
TYPE 2 CB (54")*
403.07
397.61
396.11
10
TYPE 1L CB*
409.10
406.60
404.21
NOTE:
ASTERISK DENOTES SOLID
LID (PER DETAIL 2/C-6.2
FOR CATCH BASINS); ALL
OTHER STRUCTURES SHALL
HAVE OPEN GRATES PER
DETAIL 3/C-6.2
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1505 Westlake Ave. N.
T (206) 522-9510
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Suite 305
F (206) 522-8344
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Seattle, WA 98109
WWW.PAcLAND.COM
PIPE TABLE
#
DIA (IN)
L (FT)
SLOPE (FT/FT)
MATERIAL
❑i
12
9
0.010
HDPE
12
18
0.006
HDPE
12
4
0.005
HDPE
12
2
0.005
HDPE
12
18
0.005
DIP
6
12
15
0.005
DIP
12
174
0.005
DIP
12
35
0.005
DIP
99
36
102
0.005
CMP
10
18
165
0.040
HDPE
TL 3223059175 TL 3223059334
AJF LLC GOUNDER PARAMASEVAN + CHRIST]
17642 108TH AVE SE I 176661 109TH AVE SE 15'
RENTON WA 98055 RENTON WA 98055 ,
RELOCATED STORMWATER FND 1/2" REBAR & CAP /
DETENTION PIPE \. AGREEMENT REC. NO. 5094081 "DELTA LS 18103" I /
NATURAL FLOW OF STORM DRAINAGE i Know what's b@IOW.
H�rnHLl 15' STORM DRAINAGE EASEMENT ASPHALT < P P C1II before you dig.
RECORDING N0.----------� o M / 10 I /
\ UP „
CO coNc cuR� 9 405.45 / 405.40 p o 10 \ 1��=406 C I I p
402.38 - - '� 3 � � 0 405 406 ! - o ��p] _ ��408-
ST - - - I
40410
I CONNECT TO EX
MBI I '
402.38 D , >8
402 403 \ 402.46 _0 403.85 l 1 = II
\ > I D FB
kk��402 \� I I UA
r
N 5 / 6 L IE 6"=396.60
399.64 400 40- , L400.
ov N N
I �c� A O
� �/ I `v > j
3
- VALLEY so :. ° ° ° ° s 7
j 399.63 402.77
400.46 400.56 ' s. 400.86 400.67 ° 7 O� 402.41 _ a
400.81 s. i - �_ $ ° a ° - ° s °
>� a ° ° 402.88 =401.7 oa'I
cn L
400_95 - - 401.00 (RECORD)
Ln
24. - --- 401.00 ° =RIDGE \ �
...
400.94 i I
FOOTING DRAIN CONNECTION
10 I I o 1 ° ° goo I w
1" I� a o o W
``�;.' °' ate" °.°- C'i O
I D 400. 5 / / TW 408.50 TIN 405.50 �410 I / Q
es one k{ a
1: g s ° BW 405.00 BW 404.00
399.55 / 9 C�O[�t]pdC4C LaM40 C�LaG3C �4o2.2s
400.90 s -403.01 TW 409.10 / F"'
399.53 8,2613E ° ° I / p�
Y.FFE a _ TW 403.00 BW 405.60L,1�I / O
TS 400.16 400.90 401.00 J ° BW 403.00
BS 399.58 , . ' / / > ` 401.01 a s 401.45 0 0 0 N
400.81 401.18 401.00
TS 400.75' I65 j 401.01 02.29 Ln 0� I o N I
BS 40OA . -P � / _ 400.94 0
col 1 - 401.00'__
772 / /� - 400.83 ° 40� i �401.78 �� x VIB L �I
' - o o MAINTAIN TREE PROTECTION PER
1 00
399.57: WATE - , - 5 402 �r R" .EDARS _
.15 401 ' - WITHIN TREE PROTECTION AREA
- - SHEET D-1.0; NO GRADING
IE=398
402 403 290 94Al '_
F. - o I
/ 4' TEMPORARY GRADING EASEMENT
SSMH RIM=399-50 RECORDING NO. 20171117000901 GRAPHIC SCALE
IE CL CHAN 12 CONC 20 0 10 20 40 80
(N/S)=392.0
CB RIM=398.70
IE 12" CMP (W)=393.0 ( IN FEET )
IE 24" CONC (N)=393.0 1 inch = 20 ft.
IE 24" CONC (S)=393.0
IE 8" CMP (SE)=395.9
BTM=389.4 LEGEND
FLOW CONTROL
CB TABLE
DESCRIPTION
VAULT 1
RIM ELEVATION
-49-
400.63
INLET ELEVATION
395.60-
395.89
OUTLET ELEVATION
395.60-
395.89
ORIFICE #1 ELEVATION
393.60-
393.55
ORIFICE #1 DIAMETER
0.6 IN
ORIFICE #2 ELEVATION
397.40-
397.28
ORIFICE #2 DIAMETER
1.2 IN
RISER ELEVATION
398.18-
398.05
OUTLET PIPE DIAMETER
12 IN
NOTE:
SEE 3/C-6.3 FOR FLOW CONTROL CB DETAIL
REFER TO SHEET CV-11 FOR
CITY OF RENTON STANDARD
SURFACE WATER NOTES
REVISION
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7
002.00
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Am
DETENTION VAULT TABLE
DESCRIPTION
VAULT 1
BOTTOM EL
395.60
MAX WS EL
398.10
TOP EL (INSIDE)
398.60
# OF UNITS
38
STORAGE VOL. REQ.
9,750 CF
TOTAL VOLUME
11,970 CF
STORAGE VOLUME
9,975 CF
EX. CONTOUR
PROPOSED CONTOUR
XXX
SPOT ELEVATION
xxx.x�
(TP UNLESS OTHERWISE NOTED)
2
C-6.3
STORM DRAIN PIPE �_ST�
2
ROOF DRAIN LEADER
C-6.3
(6" PVC, 1 % SLOPE ----
UNLESS OTHERWISE NOTED)
1
MODULAR OPEN -BOTTOM
C-6.0
DETENTION UNIT (3' DEPTH)
1
C-6.0
MODULAR OPEN -BOTTOM
DETENTION UNIT (3' DEPTH WITH
-
24"-DIAMETER INSPECTION PORT)
1
MODULAR DETENTION UNIT (7'
2 STORMFILTER WATER
C-6.0QUALITY MODULAR WETLAND
1/4 TYPE 1 1L CATCH BASIN
C-6.1 / •
2 TYPE 2 CATCH BASIN
C-6.1
2 CLEANOUT TO GRADE (CO)
C-5.o
RETAINING WALL
(WALLS WHICH EXCEED 4'
REQUIRE A SEPARATE
BUILDING PERMIT)
GRADING RIDGE R+BOE
GRADING VALLEY V* EY
DETENTION VAULT NOTES: C-6.0 DEPTH WITH MAINTENANCE HOLE
1. TOTAL VOLUME PER UNIT=315.0 CF AND LADDER)
2. STORAGE VOLUME PER UNIT=262.5 CF
EARTHWORK QUANTITIES
EARTHWORK VOLUMES SHOWN BELOW REPRESENT THE DIFFERENCE BETWEEN
FINISHED AND EXISTING GRADE SURFACES WITH NO ADJUSTMENTS MADE FOR ENGINEER'S RECORD
SURFACE PREPARATION REQUIREMENTS OR SUBGRADES. THE VOLUMES ARE
APPROXIMATE ONLY, AND ARE NOT TO BE USED FOR BIDDING PURPOSES. DRAWING CERTIFICATION
CUT: 2,910 CY
FILL: 100 CY SEE SHEET CV-1.0 FOR SIGNED ENGINEER'S
NET: 2,810 CY (CUT) RECORD DRAWING CERTIFICATION NOTE
SURVEYED: SCALE: _
WRH A HORIZONTAL- NAD 1983/1991 CITY 0 F
DESIGNED: AS SHOWN +
DRAWN: LRR RENTON
CMD ONE INCH DATUM
CHECKED: AT FULL SCALE Planning/Building/Public Works Dept.
WFF IF NOT ONE INCH
BY DATE APPR APPROVED: SCALE ACCORDINGLY
U
X
H
H
CO
CB RIM=410.01
IE 12" CONC (� Q
IE 12" CONC (�
J
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
RENTON FIRESTONE
17808 108TH AVE SE
RECORD DRAWINGS
GRADING AND DRAINAGE PLAN
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DATE: ILL
02/21/2019
FIELDBOOK: z
PAGE: O
DRAWING NO:
C-2.0 IZ
SHEET: OF: W
8 18 IIr
R-394708