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DIRECTION OF FLOW
(4) PIPE CLAMPS
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IPE li SOLID PIPE
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RUBBER BOOT
NTS
Dis-Similar Pipe Connection
PoGID PIPE BEDDING
30" MAXIMUM FOR PIPE UP TO AND INCLUDING 12"
FOR PIPE LARGER THAN 12", O.D. OF PIPE PLUS 16".
HAND COMPACTED BACKFILL
SPRING LINE
COMPACTED BEDDING GRAVEL PER SECTION 9-03.12(3),
"GRAVEL BACKFILL FOR PIPE ZONE BEDDING", OF THE
STANDARD SPECIFICATIONS, OR CONCRETE IF SPECIFIED.
FOUNDATION GRAVEL, IF REQUIRED (SEE NOTE 2.)
FLEXIBLE PIPE BEDDING
SEE ABOVE FOR TRENCH WIDTH
HAND COMPACT BACKFILL
0
COMPACTED BEDDING GRAVEL PER SECTION 9-03.12(3),
°
"BEDDING MATERIAL FOR THERMOPLASTIC PIPE" OF
STANDARD SPECIFICATIONS, OR CONCRETE IF SPECIFIED.
PVC PIPE
FOUNDATION GRAVEL, IF REQUIRED (SEE NOTE 2.)
CONCRETE ENCASEMENT
SEE ABOVE FOR TRENCH WIDTH
CONCRETE, 2000 PSI (SEE NOTE 3.)
FOUNDATION GRAVEL, IF REQUIRED (SEE NOTE 2.)
DETENTION PIPES WITH UNDERDRAINS (SEE NOTE 4.)
RIGID OR FLEXIBLE PIPE BEDDING (PER ABOVE).
FILTER FABRIC ABOVE GRAVEL BACKFILL FOR DRAINS.
PROVIDE 12" MIN OVERLAP AT SEAMS.
GRAVEL BACKFILL FOR DRAINS SHALL CONSIST OF
1" WASHED ROCK FROM BOTTOM OF UNDERDRAIN
PIPE TO SPRINGLINE OF DETENTION PIPE.
UNDERDRAIN PIPE (TYP.) 6" MIN PERF. PER STANDARDS
(SEE NOTE 5.).
FOUNDATION GRAVEL, IF REQUIRED (SEE NOTE 2.)
NOTES
1. COMPACTED CRUSHED SURFACING TOP COURSE SECTION 9-03.9(3), "CRUSHED SURFACING",
OF THE STANDARD SPECIFICATIONS CAN ALSO BE USED AS BEDDING GRAVEL.
2. EXCAVATE UNSTABLE MATERIAL DOWN TO FIRM SOIL AND REPLACE WITH FOUNDATION GRAVEL
PER SECTION 9-03.9(1), "BALLAST", OF THE STANDARD SPECIFICATIONS
3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ANCHORING PIPE TO PREVENT FLOTATION
DURING CONCRETE PLACEMENT.
4. PROVIDE CLEANOUTS ON UNDERDRAIN PIPE, EVERY 100 FEET, AND AT BENDS OR JUNCTIONS.
NTS
Pipe Bedding
FRAME AND GRATE
FINISHED GROUND
Z 4„
12"
MAX 4" MAX
2-12 RISERS (MIN) _
OUTLET PIPE
MAX DESIGN WSE
12"
cfl
TYPE 2-48" CB BASE UNIT
SEE APPLICABLE STANDARD DETAILS.
CONFORMS TO WASHINGTON STATE
APWA/WSDOT STANDARD
SPECIFICATIONS & STANDARD PLAN. T-SECTION
STRAP TO WALL.
2 STRAPS MIN REQUIRED.
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p
48"
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NOTES:
I 1. ALL METAL PARTS AND SURFACES MUST BE MADE OF
CORROSION RESISTANT MATERIAL OR GALVANIZED.
20" 1
Cn
48". 54" & 60" TOP '-I AR
BUILDING WALL SEE
STRUCT'L PLANS
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GRAVEL BACKFILL FOR DRAINS
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BUILDING FOOTING
SEE STRUCT'L PLANS
6" SDR 35 PVC PERF PIPE
6"
SURROUNDED BY 6" OF
GRAVEL ON ALL SIDES.
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6
CONNECT TO STORM
CONVEYANCE SYSTEM.
NTS
Spill Control Device 2
#4 BARS @ 6" CENTERS ACCESS RISERS, CORRUGATED METAL
BOTTOM FACE WITH MANHOLE PER STANDARDS, WITH LADDERS
1" MIN COVER (MIN 2 PER PARALLEL PIPE)
R=3/4"x
#5 BARS @ 6" CENTERS
BOTTOM FACE WITH
1" MIN COVER
6"
#8 GALV.
DEFORMED
REBAR
#7 GALV.
SMOOTH
STEEL
3/4"
PREFABRICATED LADDER
112" MIN
I�
x � _j x
� Z
HANDHOLD
*ALL STEPS & RUNGS #8 CATCH BASIN STEP
GALV. DEFORMED REBAR
OR COPOLYMER PROPYLENE.
12" MIN
N
12" MIN \ Z
N Z
#6 BARS @ 7" CENTERS
BOTTOM FACE WITH °' J
1" MIN COVER ELEVATION PLAN
DROP RUNG
CATCH BASIN STEP
NOTES~
1. PROPRIETARY CATCH BASIN HANDHOLDS AND STEPS ARE
ACCEPTABLE, PROVIDED THAT THEY CONFORM TO SEC. R,
ASTM C478, AASHTO M199 AND MEET ALL WISHA REQUIREMENTS.
2. CATCH BASIN STEP/HANDHOLD LEGS SHALL BE PARALLEL OR
APPROXIMATELY RADIAL AT THE OPTION OF THE MANUFACTURER,
EXCEPT THAT ALL STEPS IN ANY CATCH BASIN SHALL BE SIMILAR.
PENETRATION OF OUTER WALL BY A LEG IS PROHIBITED.
3. HANDHOLDS AND STEPS SHALL HAVE "DROP" RUNGS AS SHOWN
ON DETAIL OR PROTUBERANCES TO PREVENT SIDEWAYS SLIP.
4. SLAB OPENING MAY BE 24" X 20" OR 24" DIA
5. AS AN ACCEPTABLE ALTERNATIVE TO REBAR, WELDED WIRE FABRIC
HAVING A MIN AREA OF 0.12 SQUARE INCHES PER FOOT MAY
BE Used. WELDED WIRE FABRIC SHALL COMPLY TO ASTM A497.
6. LADDERS OR STEPS SHALL EXTEND TO WITHIN 16" OF BOTTOM OF
CATCH BASIN.
7. 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.
8. ADDITIONAL SAFETY FEATURES MAY BE REQUIRED IN VERY DEEP
TYPICAL ORIENTATION OR UNUSUAL STRUCTURES.
FOR ACCESS AND STEPS
5" 24" 5"
�n n
6" OR 1 QZ i i.
1-#3 BAR FOR 6" NTS
2-#3 BAR FOR 12" CB Ladder Ste and Slab To10
RISER � P P
20"
n �
72" TOP SLAB n
20"
n
96" TOP SLAB
SEE NOTE 1
0
COMPACTED BACKFILL SLOPE
r MEETING GRADATION REQ'TS FOR
STRUCT'L FILL (SEE NOTE 2)
SLOPE TO DRAIN AWAY
FROM STRUCTURE
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VAA 6 WRAP IN NON -WOVEN
FILTER FABRIC
6"
SUBDRAIN PIPE
1. 6" MINIMUM DIAMETER PERFORATED OR SLOTTED PIPE; TIGHT JOINTS;
SLOPED TO DRAIN (6"/100' MIN SLOPE).
2. PERFORATED PIPE HOLES (3/16" TO 1/4" 0) TO BE IN LOWER HALF OF THE
PIPE WITH LOWER QUARTER SEGMENT UNPERFORATED FOR WATER FLOW.
3. SLOTTED PIPE TO HAVE 1/8" MAXIMUM WIDTH SLOTS.
-NON-SKID INTEGRAL PATTERN TO
BE CAST ON TOP OF COVER
COVER PLAN
INSERT BOLTS
DRILL & TAP: u -
120 DEGREES (TYP. 3PL.)
NTS
Footing Drain 3
MG PLAN
1/2 MICK
3/8" 1°
2"
1"
25"
26 3/8"
SECTION A -A 1 " 25 1 /4"
6 F
1 1/4" 23 3/4" 5"
3/4"
33 3/4"
SECTION B-B
COVER NOTES RING NOTE
1. USE WITH THREE LOCKING BOLTS 5/8"-11 NC STAINLESS TYPE 304 1. DRILL AND TAP THREE 5/8"-11 NC HOLES THROUGH
STEEL SOCKET HEAD (ALLEN HEAD) BOLTS, 2" LONG. DRILL HOLES RING AT 120'.
SPACED 120', TO MATCH HOLES IN RING.
2. RING MATERIAL IS GREY IRON, ASTM A-48 CLASS 30.
2. COVER MATERIAL IS DUCTILE IRON ASTM A536 GRADE 80-55-06.
3. SHALL CONFORM TO SEC. 9-05.15 OF THE STANDARD
3. SHALL CONFORM TO SEC. 9-05.15 OF THE STANDARD SPECIFICATIONS, SPECIFICATIONS, AS MODIFIED HEREIN.
AS MODIFIED HEREIN.
4. APPROXIMATE WEIGHT OF RING IS 215 LBS.
4. APPROXIMATE WEIGHT OF COVER IS 150 LBS.
5. RATING - H2O.
5. RATING - H2O.
OLYMPIC FOUNDRY MH30AD/T , OR EQUAL
NTS
24" Bolt Locking Manhole Ring and Cover
Approved By:
Approved By:
Approved By:
Approved By:
In Compliance W/ City Of Renton Standards
Date:
Date: _
Date:
Date: _
PER PLAN
4'
TITLE
LONGACRES
BUSINESS
CENTER
SW 27TH ST & NACHES
AVE SW
OR APPROVED SUBSTITUTE CONSULTANT COUG H LI N
NTS PORTER
Rip Rap LU Pad 4 NDEEN
801 SECOND AVENUE - SUITE 900
SEATTLE, WA 98104
P: 206/343-0460
F: 206/343-5691
INSTALL PRECAST GRADE
FRAME & COVER/GRATE
RINGS, RISERS OR
A CONSULTING
LEVELING BRICKS AS
LIMIT OF EXCAVATION (TYP.)
STRUCTURAL AND CIVIL
NECESSARY TO MATCH
12
12
PROPOSED PAVEMENT
ENGINEERING CORPORATION
FINAL GRADE.
F
SURFACE
°
ISSUED:
4" MIN
° ° °
°
SEE NOTE 1.
° ° °
°
EXISTING PAVEMENT
DATE
DESCRIPTION
°
°
03/09/2016 BUILDING PERMIT RESUBMITTAL
ASPHALT CONICL.
'B' PAVEMENT CL.
FIRST STEP
MAXIMUM 18"
PLACE & COMPACT
BELOW COVER
CRUSHED SURFACING
TOP COURSE
v
12"
EXIST. MANHOLE OR
KEY MAP:
CATCH BASIN
PAVED AREAS
LIMITS OF 12"
EXCAVATION
CONCRETE
PERIMETER
SEAL SHALL
EXTEND 2"
BELOW
GRADE
RINGS OR
BRICKS
FRAME & COVER/GRATE
12" 3000 P.S.I. CEMENT CONCRETE
PERIMETER SEAL
0 0 °
0 � `
a
INSTALL PRECAST GRADE
RINGS, RISERS OR LEVELING
BRICKS AS NECESSARY TO
FINAL GRADE
0
UNPAVED AREAS
EXISTING MANHOLE
OR CATCH BASIN
NOTES"
1. WHERE DEPTH OF NECK EXCEEDS 24 INCHES, ADJUST MANHOLE/CATCH BASIN TO
GRADE BY INSERTING NEW BARREL SECTION BETWEEN THE CONE/SLAB AND
EXISTING BARREL.
2. GRADE RINGS, RISERS AND BRICK SHALL BE SET IN 3/4" NON -SHRINK GROUT,
PLASTER SMOOTH INSIDE AND OUT.
3. STEPS OR HAND HOLDS SHALL BE ADDED AS NEEDED.
4. PRECAST GRADE RINGS AND RISERS MUST BE CAST WITH GROOVE TO ALLOW FIELD
INSTALLATION OF SAFETY STEP.
5. REPLACE EXISTING FRAME AND COVER/GRATE IF NON-STANDARD.
PROJECT NUMBER C152268-03
DRAWN BY SAS
ISSUE DATE 05/04/2017
SEAL
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z
36936
GISTEgCy�
ONAL
SHEET TITLE / NUMBER
Storm Drainage Details
C401 1
R-388326