HomeMy WebLinkAboutR-43770724' L 24'
15' 24' * 1' MIN.
_ 14, 14' 5' **
3'* 1V* 1V* 12,•
,ROLLED CURB
VARIES I 2_4y I 2.0% 2.0� VARIES
1 5" CEMENT CONC. SIDEWALK-'
I I I I
2" COMP. DEPTH CLASS 'B' ASPHALT CONCRETE
I 1 1/2" MIN. COMP. DEPTH CRUSHED SURFACING
it I TOP COURSE
2 1/2" MIN. COMP. DEPTH CRUSHED SURFACING
I BASE COURSE
I
I GRAVEL BASE CLASS 'B' MAY BE REQUIRED
DEPENDING ON SOIL CONDITIONS
* DENOTES STREET SECTION ON CUL-DE-SAC END OF S.E. 159th
* * SEE PLANS FOR SIDEWALK LOCATION - ONE
SIDE ONLY ON S.E. 159th PL.. NO SIDEWALK
ON CUL-DE-SAC END
TYPICAL STREET SECTION WITH ROLLED CURB
12" MAX.
WIDTH OF RAILS RAILS
SHALL BE Er MIN.
OR 12" MAX.
I
BOLTS: 2 PER JOINT -�
1 /2" x 3" GALV. LAG
SCREWS
15'
s
STRIPES SHALL BE REFLECTIVE
I A49 n
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ra
T1 ! I -Ili -I I I_I 1 I r=1 1 1--> > ,, III- 1 1 I, 1 11 ,! I l i it 1 I i
POSTS: 4 x 6" MIN.
U 1J PRESSURE TREATED OR
JP CEDAR, PAINTED
BARRICADE TYPE III
NOT TO SCALE
1/4 EDGED GROOVE
(L CURB �; / CEMENT CONCRETE WALK
45' 1 �-
OPTIONAL FOR INTEGRAL
a
POUR
CEMENT CONCRETE ROLLED CURB
NOT TO SCALE
7
5' x 2" x 4" STAKE
MARKED "STORM DRAINAGE'
SECURE PIPE TO STAKE
EXISTING GROUND
RESIDENTIAL LOT
PIPE MATERIAL SHALL CONFORM TO PIPE MATERIAL
SPECIFICATION (SEE KING COUNTY SURFACE WATER
DESIGN MANUAL SECTION 4.3.4 IN CHAPTER 4)
AND, IF NON-METALLIC, THE PiPE SHALL BE BURIED
WITH METAL WIRE OR OTHER METAL DETECTION FEATURE.
DRAINAGE STUB•-DIJT
FOR
SINGILE-FAMILY RESIDENTIAL LOTS
NOT TO SCALE
l.- - A
111-111=
1u�lil�� juIIN
~ 2'
MIN - -=III= -
-I=1
COLLAR-'
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1+��� Vaa6e@o a
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ao e
•ti. `1 �y.X-CL-e au
GRAVEL- J+ A CONCRETE BLOCK i
CONCRETE BLOCK ANCHOR d
(NOT TO SCALE)
- - 8" MIN. (TYP.)
1
CONCRETE BLOCK KEYED - . 1' MIN.
INTO UNDISTURBED SOIL
AS SHOWN.
6" MIN.
i - 6" MIN,
1?-' PIPE.
SECTION A- A
(NOT TO SCALE)
26' TRACT A
13'
2' 11 ' 1 1 ' 2'
VERTICAL' CURB
AND GUTTER
Ex. GROUND-,
PROFILE POINT 3
�' ,i 1�
,1
,
,3.0%
2" COMP. DEPTH CLASS 'B' ASPHALT CONCRETE
1-1/2" MIN. COMP. DEPTH CRUSHED SURFACING
TOP COURSE
2-1/2" MIN. COMP. DEPTH CRUSHED SURFACING
BASE COURSE
-GRAVEL BASE CLASS 'B' MAY BE REQUIRED
DEPENDING ON SOIL CONDITIONS (SEE NOTE BELOW)
SECTION B- B
NOT TO SCALE
Ki
5- /--1 /4" EDGED GROOVE
i�
1* NOTE: TOP OF CURB
0 DRIVEWAYS
CEMENT CONCRETE CURB & GUTTER
NOT TO SCALE
'7 C.•
-BACK
EDGE
OF
FRAME EVEN
WITH
BACK
OF
CURB
I
Q� GRATE --- �•-i
ROLLED CURB INLET
NOT TO SCALE
DRAINAGE NOTES
1. Proof of liability insurance shall be submitted to the Division
prior to the preconstruction meeting (KCC 9.04.100.D).
2. All pipe and appurtenances shall be laid on a roperly prepared
foundation in accordance with WSDCT 7-02.3(1 �. This shall
include leveling and compacting the trench bottom, the top of the
foundation material, and any required 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
7.03).
5. All catch basin grates shall conform to KCRS drawing numbers 41,
46, 47, or 48, which includes the stamping "OUTI=ALL TO STREAM, DUMP
NO POLLUTANTS" and "Property of King County" (KCRS 7.07).
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(J)).
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" rock/40%-70% passing; 2"
-4" rock/30%-40% passing; and 1"-2" rock 1 b%-20% passing.
Installation shall be in accordance with KCRS drawing number 51.
8. Drainage outlets (stub -outs) shall be provided for each individual
lot, except for those lots approved for infiltration by King
County. Stub -outs shall conform to the fallowing:
a) Each outlet shall be suitably located at the lowest elevation
an 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 stormwater conveyance system
or to an approved outfall location.
b) Outlets on each lot shall be located with a 5-foot-high, 2' x 4"
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 and, if non-metallic, the pipe shall
contain wire or other acceptable detection feature-
d) Drainage easements are required for drainage systems
designed to convey flows through individual lots.
e) The developer and/or 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.
CONC. COLI
12"0 N-12
#4 REBAR (TYPICAL)
6" MIN. COVER
UNDISTURBED SOI
i- xU
N
I
VIEW
OUTSIDE EDGE iQF ZATCH BASIN
aw
-! aI
rJ
TRENCH BOTTOM
12" �
i
CQMPAC D BACKFILL (957. MIN.) - f
ELEVATION MEW
2' f
TOP ANCHOR DETAIL n
NOT TO SCALE
GENERAL NOTES
1. All construction shall be in accordance with the King County
Code (KCC), Road Standards (KCRS), and Council's conditions
of preliminary subdivision approval. It shall be the sole
responsibility of the developer and the developer's 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 BALD Engineering Review checklist.
Some elements may have been overlooked or missed by the County
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, se -over conveyance, gas, electrical, etc.).
4. Before any construction or development activity, a preconstruction
meeting must be held between the Division's Development Inspection
Unit, the Developer, and the Developer's Construction
Representative.
5. A copy of these approved plans must be on the job site w nenever
construction is in progress.
6. Construction noise shall be limited by King County Code (Section
12.88); normally this is 7 am to 10 pm weekdays and 9 am to 10 pm
on weekends.
7. It shall be the permittee's/contractor's responsibility to obtain
all construction 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 Division's Development Inspection Unit thret.- days
prior to construction.
9. Datum shall be KCRS unless otherwise approved by the Division.
10. Groundwater system construction shall be within a right--of-way
or appropriate drainage easement, but not underneath the roadway
section. All groundwater systems must be constructed in accordance
with Section B1 3.02 of the APWA Standard Specifications.
11. All utility trenches shall be backfilled and compacted to 95'l
density.
12. All roadway subgrade shall be backfilled and compacted to 95%
density (WSDCT 2-06.3).
13. Open cutting of existing roadways is not allowed unless
specifically approved by the Division 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 the performance
of work covered by the contract. Any work within the traveled
right--of-way that may interrupt normal traffic flow shall re-ijuire
at least one flagger for each lane of traffic affected. All
sections of the WSDCT Standard Specifications 1-07.23 - 1 raffic
Control, shall apply.
15. Unless otherwise noted, storm drain pipe shall be rubber gasketed
concrete (ASTM C-14 class 3 or ASTM C-76 class 3), ccrnagated
high density polyethylene pipe ADS N--12 (AASHTO M-294) or equal.
Installation shall meet manufacturer's requirements.
16. Location of existing utilities are approxamate only. It shall be the
contractors responsibility to determine the true elevations and locations
so as to avoid damage or disturbance during construction.
STRUCTURE NOTES
1. These plans are approved for standard road and drainage
improvements only. Plans for structures such as bridges, vaults,
and retaining walls require a separate review and approval by the
Division prior to construction (KCC 16,04, 16.70, 14.20, KCR:5
6.04).
2. Pond berms greater than 6-ft. in height are considered to oe earth
dams. Plans for dams require a separate review and approval by the
W.S. Dept. of Ecology prior to construction.
3. Rockeries are considered to be a method of bank stabilization and
erosion control. Rockeries shall not be constructed to serve as
retaining walls. All rockeries shall be constructed in accordance
to KCRS drawing numbers 19, 20, and 21.
KING COUNTY
'i.
APPROVAL 7.
5X,NATU R
JC i/�
CONSULTANT REVIEW
"To the best of my knowledge, this plan
complies with KING COLJ:147Y Codes and
Ordinances"
J)u4ffitt
Name I
Date Telephone
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NO.
❑ESCRiFMCN/DATE
BY
PER I{.C. REVIEW
PER K.a REVIEW
2-14.92
F.R•
FINAL CCRRECTEA PLAN
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8-19-9�
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138-26-912
G. NAME
MR-7
DESIGNED BY: S.S.
DRAWN -@Y
-- �K:•.
CHECKED SY: B.A.C.
DATE:
1 ---1 339
2
DATE OF
PRINT
7 OF
8 SHEETS
IE .
W.
R-437707
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