HomeMy WebLinkAboutR-43780900
I
O
LLJ
(n
z
_z
U
Isi
O
0
I
N
a�
X
a�
t
Q
(D
N
II
Q)
U
Cl)
0
7t
00
0
rn
O
O
N
N
U
c
0
c
0
0
i
GENERAL NOTES
1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE KING COUNTY CODE (KCC),
ROAD STANDARDS (KCRS), AND THE KING COUNTY COUNCIL'S CONDITIONS OF PRE-
LIMINARY SUBDIVISION APPROVAL. IT SHALL BE THE SOLE RESPONSIBILITY OF THE
APPLICANT AND THE PROFESSIONAL CIVIL ENGINEER TO CORRECT ANY ERROR, OMISSION,
OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS. ALL
CORRECTIONS SHALL BE AT NO ADDITIONAL COST OR LIABILITY TO KING COUNTY.
2. THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED ACCORDING TO
THE KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES
(DDES) ENGINEERING REVIEW CHECKLIST. SOME ELEMENTS MAY HAVE BEEN OVER-
LOOKED OR MISSED BY THE DDES PLAN REVIEWER. ANY VARIANCE FROM ADOPTED
STANDARDS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY KING COUNTY
PRIOR TO CONSTRUCTION.
3. APPROVAL OF THIS ROAD, GRADING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AN
APPROVAL OF ANY OTHER CONSTRUCTION (e.g. DOMESTIC WATER CONVEYANCE, GAS,
ELECTRICAL, ETC.).
4. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING
MUST BE HELD BETWEEN THE DDES'S DEVELOPMENT INSPECTION UNIT, THE APPLICANT,
AND THE APPLICANT'S CONSTRUCTION REPRESENTATIVE.
5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CON-
STRUCTION IS IN PROGRESS.
6. CONSTRUCTION NOISE SHALL BE LIMITED AS PER KING COUNTY CODE (SECTION 12.88);
NORMALLY, THIS IS 7 a.m. TO 10 p.m. WEEKDAYS AND 9 a.m. TO 10 p.m. ON
WEEKENDS.
7. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CON-
STRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF -SITE WORK WITHIN THE
ROAD RIGHTS -OF -WAY.
8. FRANCHISED UTILITIES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE
APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS
THAT MEET ALL REQUIREMENTS OF KCRS CHAPTER 8 ARE SUBMITTED TO THE DDES'S
DEVELOPMENT INSPECTION UNIT THREE DAYS PRIOR TO CONSTRUCTION.
9. DATUM SHALL BE KCAS UNLESS OTHERWISE APRROVED BY DDES.
10. GROUNDWATER SYSTEM CONSTRUCTION SHALL BE WITHIN A RIGHT-OF-WAY OR APPRO-
PRIATE DRAINAGE EASEMENT, BUT NOT UNDERNEATH THE ROADWAY SECTION. ALL
GROUNDWATER SYSTEMS MUST CONSTRUCTED IN ACCORDANCE WITH SECTION B1 3.02
OF THE APWA STANDARD SPECIFICATIONS.
11. ALL UTILITY TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95% DENSITY,
12. ALL ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95% DENSITY
(WSDOT 2-06.3).
13. OPEN CUTTING OF EXISTING ROADWAYS IS NOT ALLOWED UNLESS SPECIFICALLY
APPROVED BY DDES AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT
SHALL BE RESTORED IN ACCORDANCE WITH KCRS 8.03(B)3.
14. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS,
SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS
TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT
PROPERTY IN CONNECTION WITH PERFORMANCE OF WORK COVERED BY THE CONTRACTOR.
ANY WORK WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL
TRAFFIC FLOW SHALL REQUIRE AT LEAST ONE FLAGGER FOR EACH LANE OF TRAFFIC
AFFECTED. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-07.23-TRAFFIC
CONTROL, SHALL APPLY.
DRAINAGE NOTES
1. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO DDES PRIOR TO THE PRE -
CONSTRUCTION MEETING (KCC 9.04.100.11)).
2. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION
IN ACCORDANCE WITH WSDOT 7-02.3(1). THIS SHALL INCLUDE LEVELING AND COM-
PACTING THE TRENCH BOTTOM, THE TOP OF THE FOUNDATION MATERIAL, AND ANY RE-
QUIRED PIPE BEDDING, TO A UNIFORM GRADE SO THAT THE ENTIRE PIPE IS SUPPORTED
BY A UNIFORMLY DENSE UNYIELDING BASE.
3. STEEL PIPE SHALL BE GALVANIZED AND HAVE ASPHALT TREATMENT #1 OR BETTER
INSIDE AND OUTSIDE (KCRS 7.03).
4. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS AND MANHOLES, NOT LOCATED
WITHIN A TRAVELED ROADWAY OR SIDEWALK, SHALL HAVE SOLID LOCKING LIDS. ALL
DRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENT RETENTION/DETENTION FACILITY
SHALL HAVE SOLID LOCKING LIDS (KCRS 7.05).
5. ALL CATCH BASIN GRATES SHALL CONFORM TO KCRS, DRAWING NUMBERS 2-013,
2-018, 2-019, OR 2-020, WHICH INCLUDES THE STAMPING "OUTFALL TO STREAM,
DUMP NO POLLUTANTS" AND "PROPERTY OF KING COUNTY" (KCRS 7.05).
6. ALL DRIVEWAY CULVERTS LOCATED WITHIN KING COUNTY RIGHT-OF-WAY SHALL BE OF
SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE
DRIVEWAY TO THE BOTTOM OF THE DITCH. CULVERTS SHALL HAVE BEVELED END
SECTIONS TO MATCH THE SIDE SLOPE (KCRS 7.03(L), DRAWING NO. 2-001).
7. ROCK FOR EROSION PROTECTION OF ROADWAY DITCHES, WHERE REQUIRED, MUST BE
OF SOUND QUARRY ROCK, PLACED TO A DEPTH OF 1 FOOT AND MUST MEET THE
FOLLOWING SPECIFICATIONS: 4"-8"/40%-70% PASSING; 2"-4"/30%-40% PASSING;
AND -2' ROCK/10%-20% PASSING. INSTALLATION SHALL BE IN ACCORDANCE WITH
KCRS 7.02(8) DRAWING NO. 2-024.
8. DRAINAGE OUTLETS (STUB -OUTS) SHALL BE PROVIDED FOR EACH INDIVIDUAL LOT, EX-
CEPT FOR THOSE LOTS APPROVED FOR INFILTRATION BY KING COUNTY. STUB -OUTS
SHALL CONFORM TO THE FOLLOWING:
A. EACH OUTLET SHALL BE SUITABLY LOCATED AT THE LOWEST ELEVATION ON THE
LOT, SO AS TO SERVICE ALL FUTURE ROOF DOWNSPOUTS AND FOOTING DRAINS,
DRIVEWAYS, YARD DRAINS, AND ANY OTHER SURFACE OR SUBSURFACE DRAINS
NECESSARY TO RENDER THE LOTS SUITABLE FOR THEIR INTENDED USE. EACH
OUTLET SHALL HAVE FREE -FLOWING, POSITIVE DRAINAGE TO AN APPROVED STORM -
WATER CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION.
B. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE-FOOT HIGH, 2"X4" STAKE
MARKED "STORM" OR "DRAIN". THE STUB -OUT SHALL EXTEND ABOVE SURFACE
LEVEL, BE VISIBLE, AND BE SECURED TO THE STAKE.
C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATIONS DESCRIBED IN
KCRS 7.04 ABD, IF NON-METALLIC, THE PIPE SHALL CONTAIN WIRE OR OTHER
ACCEPTABLE DETECTION.
D. DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO
CONVEY FLOWS THROUGH INDIVIDUAL LOTS.
E. THE APPLICANT/CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS
OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO THE UTILITIES (E.G. POWER,
GAS, TELEPHONE, TELEVISION).
F. ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE
LOT HOME OWNER.
9. ALL STORM PIPE SHALL BE REINFORCED CONCRETE PIPE, OR CORRUGATED HIGH DENSITY
POLYETHYLENE PIPE (CPEP) SMOOTH INTERIOR IN ACCORDANCE WITH WSDOT/APWA STANDARD
SPECIFICATIONS SECTION 9.05.
10. ALL ROOF AND FOOTING DRAIN PIPE SHALL BE FLEXIBLE ADS PIPE.
UTILITY CUTS ON EXISTING TRAVELLED ROADS
1. IN TRENCHING THROUGH EXISTING PAVEMENT, THE OPEN CUT SHALL BE A NEAT -LINE CUT MADE BY EITHER
SAW CUTTING OR JACKHAMMERING A CONTINUOUS LINE. TRENCH SIDES SHALL BE KEPT AS NEARLY VERTICAL
AS POSSIBLE. COMPACTION AND RESTORATION MUST BE DONE AS DETAILED BELOW AND IMMEDIATELY AFTER
THE TRENCH IS BACKFILLED, SO AS TO CAUSE LEAST DISRUPTION TO TRAFFIC. CEMENT CONCRETE PAVEMENT
SHALL BE CUT ONE FOOT OUTSIDE THE EDGE OF THE TRENCH ON EACH SIDE.
2. IN CUTS PARALLEL TO ROAD ALIGNMENT:
A. ALL TRENCH BACKFILL UNDER ROADWAY SHALL BE MECHANICALLY COMPACTED TO 95 PERCENT OF
MAXIMUM DENSITY EXCEPT FOR TRENCHES OVER EIGHT FEET IN DEPTH. THROUGHOUT THE LENGTH OF
ANY PIPE RUN, MANHOLE TO MANHOLE, IN WHICH ANY PART IS OVER EIGHT FEET DEEP, BACKFILL AT
DEPTHS OVER FOUR FEET SHALL BE COMPACTED TO 90 PERCENT MAXIMUM DENSITY BY EITHER WATER
SETTLING (SEE SUBSECTION 8.03C BELOW) OR MECHANICAL COMPACTION. THE TOP FOUR FEET OF THE
TRENCH LINE SHALL THEN BE MECHANICALLY COMPACTED TO 95 PERCENT. ALL DENSITIES SHALL BE
DETERMINED BY TESTING SPECIFIED IN SECTION 2-03.3(14)D OF WSDOT/APWA STANDARD SPECIFICATIONS.
B. IN ANY TRENCH IN WHICH 95 PERCENT DENSITY CANNOT BE ACHIEVED WITH EXISTING BACKFILL, THE
TOP FOUR FEET SHALL BE REPLACED WITH GRAVEL BASE AS SPECIFIED IN THE WSDOT/APWA STANDARD
SPECIFICATIONS, SECTION 9-03,10. THIS NEW MATERIAL SHALL THEN BE MECHANICALLY COMPACTED
TO 95 PERCENT.
C. RESTORATION OF A TRENCH WITHIN AN ASPHALT PAVEMENT SHALL INCLUDE A MINIMUM OF SIX AND
ONE-HALF INCHES OF CRUSHED SURFACING MATERIAL AND ASPHALT CONCRETE CLASS B THE SAME
THICKNESS AS THE EXISTING ASPHALT PAVEMENT OR A MINIMUM OF TWO INCHES, WHICHEVER IS THE
GREATER. PAVEMENT SHALL THEN BE OVERLAID FULL WIDTH WITH A MINIMUM OF ONE INCH COMPACTED
ASPHALT CONCRETE CLASS B. ANY EXCEPTIONS TO THIS OVERLAY REQUIREMENT WILL BE ON A CASE -
BY -CASE BASIS, SUBJECT TO APPROVAL BY THE ENGINEER, CONSIDERING THE EXISTING CONDITIONS OF
THE PAVEMENT. CONCRETE PAVEMENT SHALL BE RESTORED CONSISTENT WITH SECTION 6-02 OF THE
WSDOT/APWA STANDARD SPECIFICATIONS. ANY CONCRETE PAVEMENT TRAFFIC LANE AFFECTED BY THE
TRENCHING SHALL HAVE ALL AFFECTED PANELS REPLACED.
3. IN CUTS TRANSVERSE TO ROAD ALIGNMENT:
A. IN GENERAL, UTILITY TRENCHING THROUGH EXISTING PAVEMENT ACROSS THE ROAD ALIGNMENT WILL BE
DISCOURAGED. IT WILL NOT BE PERMITTED UNLESS IT CAN BE SHOWN THAT ALTERNATIVES SUCH AS
BORING OR JACKING ARE NOT POSSIBLE DUE TO CONFLICTS OR SOIL CONDITIONS, OR UNLESS THE
UTILITY CAN BE INSTALLED JUST PRIOR TO RECONSTRUCTION OR OVERLAY OF THE ROAD.
B. WITHOUT EXCEPTION, THE ENTIRE TRENCH SHALL BE BACKFILLED WITH CRUSHED SURFACING TOP COURSE
MEETING THE REQUIREMENTS OF SECTION 9-03.9(3) OF THE WSDOT/APWA STANDARD SPECIFICATIONS.
BACKFILL SHALL BE PLACED AND COMPACTED MECHANICALLY IN SIX INCH LIFTS WITH A COUNTY INSPECTOR
PRESENT. IF THE CAPABILITY CAN BE: DEMONSTRATED, BASED ON A COMPACTION EQUIPMENT OR
QUALITY OF BACKFILL TO ACHIEVE 95 PERCENT DENSITY IN THICKER LIFTS, THE DEPTH OF BACKFILL
LIFTS MAY BE INCREASED UP TO ONE FOOT. AFTER BACKFILL AND COMPACTION, AN IMMEDIATE COLD
MIX PATCH SHALL BE PLACED AND MAINTAINED IN A MANNER ACCEPTABLE TO THE ENGINEER. ON ASPHALT
PAVEMENT, A PERMANENT HOT MIX PATCH THE SAME THICKNESS AS THE EXISTING ASPHALT OR A MINIMUM
OF TWO INCHES, WHICHEVER IS THE GREATER, SHALL BE PLACED AND SEALED WITH A PAVING GRADE
ASPHALT WITHIN 30 CALENDAR DAYS. CEMENT CONCRETE PAVEMENT SHALL BE RESTORED WITH AN
EIGHT -SACK MIX, USING EITHER TYPE II OR TYPE III CEMENT, WITHIN 30 CALENDAR DAYS.
BIOFILTER SEED MIX
(MODIFIED BRIARGREEN, INC. HYDROSEEDING GUIDE WETLANDS SEED MIX)
% WEIGHT
% PURITY %
GERMINATION
TALL OR MEADOW FESCUE
68
98
90
Festuca arundinocea or Festuca elctior
SEASIDE/CREEPING BENTGRASS
10
98
85
Agrostis poiustris
MEADOW FOXTAIL
10
90
80
Alepocurus protensis
ALSIKE CLOVER
6
98
90
Trifolium hybridum
REDTOP
6
92
85
Agrostis olbo
THIS MIX IS RECOMMENDED FOR BIOSWALES
AND OTHER INTERMITTENTLY WET AREAS.
SOD SHALL GENERALLY NOT BE USED FOR
BIOSWALES
BECAUSE THE
SEED MIX IS I
INAPPROPRIATE FOR THIS APPLICATION. SOD CAN BE
USED FOR LINING DITCHES TO
PREVENT EROSION, BUT WILL PROVIDE LITTLE WATER QUALITY
BENEFIT
DURING THE
WET SEASON.
I~ nut and washer
I end of boll to
►nt removal of nut
min.
Edge of pavement
NTS
Golv. eye bolt, shank. 5/8" diem.,
eye to be forge enough to allow
chain to pass through.
Approx. V length 5/le,
ehoin to oonnect pj d
Lock
IF
NOTES
Edge of rhoulder ---,
Min. 5/8" galvanized, I.W.R;C. wire,
sad rope may be approved by the Engineer.
vonized
and.
p end clamp and
5/8" gale, eye b Goly. rn,t and washer
min.
Ground line
t
i
Posts (see notes)
ELEVATION
Posts for access control gores shelf be treated timber poets or galvanized steel
posts as used for guardrail, Only one type of post shell be used on any one
project.
The lock (lo be furnished by olhets) will be placed on the side of the gets which
will be of the most convenience to those who use the gate.
DIRECTION OF TRAFFIC ---
EDGE OF SHOULDER
EDGE OF TRAVELED WAY
❑oQ❑
� r r
S t d vv AAK
ELEVATION
NOTES:
1. SEE SEC. 5.04.
2. MAILBOX INSTALLATIONS ON PROJECTS FUNDED BY FEDERAL GRANTS SHALL BE
CONSTRUCTED IN ACCORDANCE WITH WSDOT/APWA STANDARD PLAN H-12.
3. REVIEWING AGENCY MAY APPROVE INSTALLATIONS OF MAILBOXES WITHOUT
TURNOUT IF CONSTRUCTED IN CONFORMANCE WITH WSDOT/APWA STANDARD
PLAN H-12,
4. MAILBOX HEIGHT VARIES ACCORDING TO THE TYPE OF DELIVERY VEHICLE.
THESE HEIGHTS SHALL BE DETERMINED BY THE POSTMASTER DURING PLAN
REVIEW.
*ALL STEPS & RUNGS
1 " DAM. GALV. REBAR OR
COPOLYMER PROPYLENE.
12" MIN.
M1 N Z
L � �
HANDHOLD
12" MIN.
rn
MANHOLE STEP
12" MIN.
12" MIN.
� Z
�� rn
ELEVATION PLAN
MANHOLE DROP RUNG STEP
5" 24" 5"
__JL 1 ° CLEARANCE
#4 REBAR
,GRADE RIND
LADDER DETAILS
NTS
MAILBOX DETAIL
NTS
NOTES:
1. PROPRIETARY MANHOLE HANDHOLDS AND STEPS
ARE ACCEPTABLE, PROVIDED THAT THEY CONFORM
TO SEC. R, ASTM C478, AASHTO M 199 AND
MEET ALL WISHA REQUIREMENTS.
2. MANHOLE STEP/HANDHOLD LEGS SHALL BE
PARALLEL OR APPROXIMATELY RADIAL AT THE
OPTION OF THE MANUFACTURER, EXCEPT THAT
ALL STEPS IN ANY MANHOLE SHALL BE SIMILAR.
PENETRATION OF OUTER WALL BY A LEG IS
PROHIBITED,
3. HANDHOLDS AND STOPS SHALL HAVE "DROP"
RUNGS OR PROTUBERANCES TO PREVENT
SIDEWAYS SLIP.
4. LADDERS OR STEPS SHALL EXTEND TO WITHIN
16" OF BOTTOM OF MANHOLE.
5. HANGING LADDERS SHALL BE PERMANENTLY
FASTENED AT TOP BY HANGING ON STEP
OR BY BOLTING OR EMBEDDING IN CONCRETE.
EACH SHALL BE EMBEDDED AT BOTTOM IN BASE.
6. ADDITIONAL SAFETY FEATURES MAY BE REQUIRED
IN VERY DEEP OR UNUSUAL STRUCTURES.
�NG COUNTY D.D.E.S.
R=3/4"
-�,)
BUILDING SERVICES ' TS-10N
COTIVIU �, O3ACT .MPTR0VA
6"
j'-
Project No. �
Pro T�'tt2?e
SFIE N IN.�ER.ING/DR E PROV
#8 GALV.
DATE , SIGNS
DEFORMED
[j'i�l-�. 1C P -NiNG APPROVAL
REBAR
DATE, SIGNED >�
E] LkNDSCAPE/ZON1NV`/PARKING
DATE E SIGNED _
#7 GALV.
SPERM. CONDITIONS:
SMOOTH
STEEL
3/4"
PREFABRICATED LADDER
�l AVOID CUTTING UNDERGROUND
-1 UTILITY LINES. ITS COSTLY.
Call
before you
Dig
1-800-424-5555
UNDERGROUND SERVICE (USA)
0
Mom , /v�,A-i l `Box wi�'11 SNcl � V I.A ,
�2\1e,4 M4,11 i3nyes
NOTE:
EXISTING UTILITY LOCATIONS SHOWN HEREON ARE APPROXIMATE ONLY.
IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THE
EXACT VERTICAL AND HORIZONTAL LOCATION OF ALL EXISTING UNDER-
GROUND UTILITIES PRIOR TO COMMENCING CONSTRUCTION. NO
REPRESENTATION IS MADE THAT ALL EXISTING UTILITIES ARE SHOWN
HEREON. THE ENGINEER ASSUMES NO RESPONSIBILITY FOR UTILITIES
NOT SHOWN OR UTILITIES NOT SHOWN IN THEIR PROPER LOCATION.
CALL BEFORE YOU DIG: 1-800-424-5555
FINAL CORRECTED Ply
by
DATE: �}
(APPROVED:_
KING COUNTY D.D.E.S.
REVIEW ENGINEER COMPLETION DATE
SENIOR ENGINEER COMPLETION DATE
JAMES H. SANDERS, P.E. APPROVAL DATE
DEVELOPMENT ENGINEER
COMMENTS:
.1
01
DESIGNED Jw
DRAWN DP
CHECKED
DATE 2 4 02
SCALE NTS _
RR�,@[�NUKJI� ENGINEERING INC.
�0 Ws 1�IfSHEET
a��
x
w
�;A is�9ti�'w
- VAL fry b
OWNER/DEVELOPER:
PDSK PROPERTIES, INC.
621 PACIFIC AVE., SUITE 300
TACOMA, WA. 98402
:1°
f
IV i It
TITLE:
NOTES AND DETAILS
10836 SE 190TH ST.
BELGROVE AT PXNTON
KING COUNTY WASHINGTON
8 OF 10
Y�
(253)565-4491 •Seattle (206)824-1205 • FAx (253)565-8563
Land Planning & Use a Engineering .- Sur+yging
1910-64th Avenue West, • Tacoma, WA 984s6
o
°'
LL
JOB NO.
01-065
EXPIRES: 05-24- D
1
3110/03
JW
CSDP REVISION
No.
Date
B
A r.
Revision
R-437809