HomeMy WebLinkAboutApproved_Jericho Ave_Drainage Plan Plus Std DetailsSDSD
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C-42"DEC-8
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C-36"
C-18"DEC-2
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PAGE
JOB NO.
DESIGN
12100 NE 195th St, Suite 300 Bothell, Washington 98011 425.885.7877
CIVIL ENGINEERINGLANDSCAPE ARCHITECTUREPLANNINGSURVEYING
25268
331 JERICHO AVE NE LOT
DRAINAGE PLANNEW SINGLE FAMILY RESIDENCE 2 of 5
SE
E
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DETAILS
PRECAST BASE SECTION
SEE NOTE 1
NOTES:
1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN
IN THE PRECAST BASE SECTION, FIBERS (PLACED IN
ACCORDANCE WITH STANDARD SPECIFICATION
9-05.50(9)), OR WIRE MESH HAVING A MINIMUM AREA OF
0.12 SQUARE INCHES PER FOOT SHALL BE USED WITH
THE MINIMUM REQUIRED REBAR SHOWN IN THE
ALTERNATIVE PRECAST BASE SECTION. WIRE MESH
SHALL NOT BE PLACED IN THE KNOCKOUTS. AS AN
ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN
THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH
HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER
FOOT MAY BE USED.
2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER
THAN 20". KNOCKOUTS SHALL HAVE A WALL THICKNESS
OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5"
MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE
OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED,
FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-04.3.
3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO
THE LOWEST PIPE INVERT SHALL BE 5 FEET.
4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE
FLANGE DOWN.
5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED
FLOOR, AND THE WALLS MAY BE SLOPED AT A RATE OF
1H:24V OR STEEPER.
6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE
PRECAST BASE SECTION.
7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE
INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR
NON-SHRINK APPLICATIONS IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-20.3(2).
8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN
MORTAR IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE
AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND
FRAMES.
9.MORTAR SHALL BE MIXED AND APPLIED PER
MANUFACTURER'S DIRECTIONS.
10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY
TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS
DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
LENGTH.
11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND
REMAIN VISIBLE UPON COMPLETION.
FRAME AND VANED GRATE
RECTANGULAR ADJUSTMENT SECTION
34"
24"
30
20
5"
5"
1", 2", 4", 6", 12", OR 24"
ONE #3BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
PIPE ALLOWANCES
PIPE MATERIAL
MAXIMUM
INSIDE
DIAMETER
REINFORCED OR PLAIN
CONCRETE 12"
ALL METAL PIPE 15"
CPSSP*,
STD. SPEC. 9-05.20 12"
SOLID WALL PVC,
STD. SPEC. 9-05.12(1)15"
PROFILE WALL PVC,
STD. SPEC. 9-05.12(2)15"
CORRUGATED POLYETHYLENE STORM
SEWER PIPE
26", S E E N O T E 6
22SEE
N
OTE 6
3"4"44"21" MIN.4"
MI N. (T Y
P.)3 BAR EACH
SIDE 3 BAR EACH
WAY 3 BAR
EACH CORNER 3
BAR EACH CORNER
18" MIN.3 BAR
HOOP ALTERNATIVE PRECAST BASE
SECTION CATCH BASIN TYPE
1 STD.
PLAN -
200.
00PUBLIC
WORKS DEPARTMENT APPROVED:
DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING
IS NOT TO SCALE (NTS)DocuSign Envelope ID:
6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/
1.CONDITIONS OF USE
1.1.SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2.SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED
FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE.
2.2.STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED
FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2.3.WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V
2.4.IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4" TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND
SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE.
2.5.FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE.
3.MAINTENANCE STANDARDS
3.1.ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY.
3.2.IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
3.3.IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND THEN CAUSING
CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT.
3.4.SEDIMENT MUST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH.
3.5.IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
NOTES:
JOINTS IN FILTER FABRIC SHALL BE SPLICED AT
POSTS. USE STAPLES, WIRE RINGS, OR
EQUIVALENT TO ATTACH FABRIC TO POSTS
2"x2" 14 GAUGE WIRE, OR
EQUIVALENT, IF STANDARD
STRENGTH FABRIC USED
FILTER FABRIC
2' MIN.
12" MIN.
4"x4" MIN. TRENCH
BACKFILL TRENCH WITH NATIVE SOIL
OR 3/4" TO 1-1/2" WASHED GRAVEL
2"x4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.)
6' MAX.
POST SPACING MAY BE INCREASED
TO 8' IF WIRE BACKING IS USED
AOS (ASTM D4751)30-100 SIEVE SIZE (0.60-0.15mm) FOR SILT FILM
50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS
WATER PERMITTIVITY (ASTM D4491)0.02 SEC-1MINIMUM
GRAB TENSILE STRENGTH (ASTM D4632)180 LBS. MIN. FOR EXTRA STRENGTH FABRIC
100 LBS. MIN. FOR STANDARD STRENGTH FABRIC
GRAB TENSILE ELONGATION (ASTM D4632)30% MAX. (WOVEN)
ULTRAVIOLET RESISTANCE (ASTM D4355)70% MIN.
SILT FENCE
STD. PLAN - 214.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGreggZimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
EXIST ING R OA D
1.CONDITION OF USE
1.1.CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER
PAVED AREAS WITHIN 1,000 FEET OF THE SITE.
1.2.FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAIN SUBDIVISION
ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTH/WIDTH TO PROVIDE VEHICLE ACCESS/PARKING, BASED ON LOT SIZE/CONFIGURATION.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.A SEPARATION GEOTEXTILE SHALL BE PLACED UNDER THE SPALLS TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE GEOTEXTILE
SHALL MEET THE FOLLOWING STANDARDS:
2.2.DO NOT USE CRUSHED CONCRETE, CEMENT, OR CALCIUM CHLORIDE FOR CONSTRUCTION ENTRANCE STABILIZATION BECAUSE THESE PRODUCTS RAISE pH
LEVELS IN STORMWATER AND CONCRETE DISCHARGE TO SURFACE WATERS OF THE STATE IS PROHIBITED.
2.3.HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE USED FOR PERMANENT ROADS.
HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS
IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT.
2.4.FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE.
2.5.WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE
EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE.
3.MAINTENANCE STANDARDS
3.1.QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS.
3.2.IF THE ENTRANCE IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF
SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF A WHEEL
WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASH WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND.
3.3.ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE
REMOVED OR STABILIZED ON SITE. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND
THERE IS A THREAT TO PUBLIC SAFETY. IF IT IS NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONSTRUCTED. THE SEDIMENT WOULD THEN BE
WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. WASH WATER MUST BE PUMPED BACK ONTO THE SITE AND
CANNOT DISCHARGE TO SYSTEMS TRIBUTARY TO SURFACE WATERS.
3.4.ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY.
3.5.IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL
TRAFFIC.
NOTES:
CONSTRUCTION ENTRANCE NOTES:
1.DRIVEWAYS SHALL BE PAVED TO
THE EDGE OF THE RIGHT-OF-WAY
PRIOR TO INSTALLATION OF THE
CONSTRUCTION ENTRANCE TO
AVOID DAMAGING OF THE
ROADWAY.
2.IT IS RECOMMENDED THAT THE
ENTRANCE BE CROWNED SO THAT
RUNOFF DRAINS OFF THE PAD
INSTALL DRIVEWAY CULVERT
IF THERE IS A ROADSIDE
DITCH PRESENT, AS PER CITY
ROAD STANDARDS
GEOTEXTILE
4"-8" QUARRY SPALLS
12" MIN. THICKNESS
15' MIN.
PROVIDE FULL WIDTH OF
INGRESS/EGRESS AREA
100' MIN.
GRAB TENSILE STRENGTH (ASTM D4632)200 LBS. MIN.
GRAB TENSILE ELONGATION (ASTM D4632)30% MAX. (WOVEN)
CBR PUNCTURE STRENGTH (ASTM D6241)495 LBS. MIN.
AOS (ASTM D4751)20-45 (U.S. STANDARD SIEVE SIZE)
R = 25' MIN.
STABILIZED CONSTRUCTION ENTRANCE
STD. PLAN - 215.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGreggZimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
SECTION VIEW
ISOMETRIC VIEW
DRAINAGE GRATE TRIM
GRATE FRAME
FILTERED
WATER
SEDIMENT AND DEBRIS
OVERFLOW BYPASS
BELOW INLET GRATE DEVICE
DRAINAGE GRATE
RECTANGULAR GRATE SHOWN)RETRIEVAL SYSTEM (TYP.)
OVERFLOW BYPASS (TYP.)
BELOW INLET GRATE DEVICE
1.PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR
CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP.
2.INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3.THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4.SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE.
5.THE BIGD SHALL HAVE A BUILT-IN HIGH-FLOW RELIEF SYSTEM (OVERFLOW BYPASS).
6.THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL.
7.PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15).
8.ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE
STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
5" MAX.
CATCH BASIN INSERT
STD. PLAN - 216.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGreggZimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.THIS TRENCH SHALL BE CONSTRUCTED SO AS TO PREVENT POINT DISCHARGE AND/OR EROSION.
2.TRENCHES MAY BE PLACED NO CLOSER THAN 50 FEET TO ONE ANOTHER, 10 FEET MINIMUM TO ANY BUILDING
100 FEET ALONG FLOWLINE).
3.TRENCH AND GRADE BOARD MUST BE LEVEL. ALIGN TO FOLLOW CONTOURS OF SITE.
4.SUPPORT POST SPACING AS REQUIRED BY SOIL CONDITIONS TO ENSURE GRADE BOARD REMAINS LEVEL.
5.15% MAX UNLESS OTHERWISE EVALUATED AND APPROVED, SEE SECTION C.2.1.1.
6.GRADE BOARD AND SUPPORT POST TO BE UNTREATED CEDAR OR RECYCLED PLASTIC. SPACE SUPPORT POSTS
EVERY 10 FEET MINIMUM.
7.GEOTEXTILE TO BE NON-WOVEN TYPE FOR SEPARATION PER WSDOT 9-33.2(1).
NOTES:
INFLUENT PIPE (MAX DESIGN
FLOW <0.5 CFS PER TRENCH)
FLOW TO SECOND
DISPERSAL TRENCH
IF NECESSARY
FLOW TO OTHER
BRANCHING CB'S
AS NECESSARY
12"
MIN.
6" MIN.
12"
MIN.
50'
MAX.
NOTCHED GRADE BOARD,
2"x2" NOTCHES, 18" O.C.
2" GRADE BOARD
NOTCHES (TYP.)18" O.C.
2" (TYP.)
6" MIN. PERFORATED PIPE LAID FLAT/LEVEL
3/4" -1 1/2" WASHED DRAIN ROCK OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD. SPECIFICATION SECTION 9-03.12(5)
4"x4" SUPPORT POST, SEE NOTE 6
SECTION A
6" MIN.
12" MIN.
36" MAX.
WRAP TRENCH SIDES WITH
GEOTEXTILE (LEAVE TOP AND
BOTTOM EXPOSED), SEE NOTE 7
GALVANIZED BOLT (TYP.)
2"x12" GRADE BOARD,
SEE NOTE 6
NOTCH DETAIL
PLAN
A
15% MAX, SEE
NOTE 5
15% M AX SEE
NOTE 5
TYPE 1 CB WITH
SOLID COVER
TYPE 1 CATCH BASIN
CB) WITH SOLID COVER
CAPPED CLEANOUT
WYE FROM PIPE
END CAP OR PLUG
EXPOSED ROCK, DO NOT FILL
50-FOOT DISPERSION TRENCH WITH
NOTCHED BOARD
STD. PLAN - 224.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartinPastucha
Public Works Administrator
UNLESSOTHERWISE NOTED, DRAWINGISNOTTOSCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
TYPICAL CLEANOUT CONFIGURATION
GENERAL NOTES:
1.CLEANOUTS FOR UNDERDRAIN, FOOTING DRAIN COLLECTOR, AND ROOF DRAIN COLLECTOR PIPES SHALL BE INSTALLED AT A MINIMUM OF EVERY 100 FEET, AT
EVERY 90 DEGREE OR SECOND 45 DEGREE BEND, AT THE END OF EVERY COLLECTOR PIPE, AND AT EACH END OF AN UNDERDRAIN PIPE NOT CONNECTED TO AN
OVERFLOW STRUCTURE. CLEANOUTS SHALL BE INSTALLED TO ALLOW FOR MAINTENANCE ACCESS TO ALL PIPES.
2.ALL FITTINGS SHALL BE SOIL TIGHT.
3.CLEANOUT RISER SHALL BE LOCATED OUTSIDE OF BIORETENTION PONDING WHERE POSSIBLE.
4.CLEANOUTS SHALL NOT BE LOCATED WITHIN THE STREET TRAVEL LANE, UNLESS OTHERWISE APPROVED BY THE CITY.
DESIGN PONDING
ELEVATION
SOIL TIGHT 45° BEND
EXTEND CLEANOUT RISER
2" ABOVE DESIGN PONDING
ELEVATION OR PER PLAN
4" STREAMBED COBBLES
PER WSDOT 9-03.11(2)
SOIL TIGHT
COUPLER
UNDERDRAIN, FOOTING
DRAIN COLLECTOR, OR
ROOF DRAIN COLLECTOR
PIPE, SEE NOTE 1
WYE
MECHANICAL PLUG OR
CONTINUED CONNECTION
FERNCO GASKETED
QUIK CAP OR SIMILAR
CAST IRON FRAME AND
COVER, SEE NOTE 3
CLEANOUT RISER, SEE NOTE 2
PAVED AREA (TYP.)
TO OVERFLOW
STRUCTURE OR
STORM MAIN
CLEANOUT RISER LOCATED WITHIN
BIORETENTION PONDING AREA
NOTES:
1.DIAMETER TO BE 6-INCHES MINIMUM PRIVATE, 8-INCHES MINIMUM PUBLIC. UNDERDRAIN PIPE PER STD. PLAN 262.10.
2.CLEANOUT RISER SHALL BE SAME MATERIAL AS CONNECTED UNDERDRAIN, FOOTING DRAIN COLLECTOR, OR ROOF DRAIN COLLECTOR PIPE.
3.FRAME AND COVER SHALL BE EJ PRODUCTS 3675Z1PT AND 3675APT OR APPROVED EQUAL. COVER TO BE LOCKING WITH ALLEN HEAD BOLT, MARKED "STORM" OR
DRAIN".
4.FOR CLEANOUTS FULLY OR PARTIALLY WITHIN UNPAVED AREAS OUTSIDE OF BIORETENTION PONDING AREA, POUR 8" THICK, 2'x2' SQUARE CONCRETE COLLAR
AROUND FRAME. CONCRETE COLLAR SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 3,000 PSI.
CLEANOUT RISER,
SEE NOTE 2
FRAME SECTION
10-1/2" DIA
4"
5/8"9" DIA
15" DIA
8-1/8" DIA
8-13/16" DIA
5/8"
COVER SECTION
MADE INUSA
1"
PLAN VIEW
PROD NO.3/4" FLAT
FACE GOTHIC 2) 3/8"-16 SS SOCKET
HEAD CAP SCREW (ALLENHEAD)
W/WSHRS ON A 8" DIA
BOLT CIRCLE 1)
OPENPICKHOLE
12"12"4" COMPACTED
SAND OR GRAVEL BACKFILL
FOR DRAINS PER WSDOT 9-03.
12(4)8"
CLASS "B"ASPHALT, SEE
NOTE 4 STORM
SYSTEM CLEANOUT STD. PLAN -
226.00
PUBLIC
WORKS
DEPARTMENTAPPROVED:
DATEMartin Pastucha Public
WorksAdministrator UNLESS OTHERWISENOTED, DRAWINGISNOT TO
SCALE (NTS)DocuSign Envelope ID: 3B1B34D3-7E0A-476C-
ADB3-4329FFE0C108 8/13/2020 | 8:48
OPTION 5 - IMPORTED TOPSOIL
OPTIONS 2, 3, AND 4 - AMEND IN PLACE OR STOCKPILE AND AMEND
3"-4" ARBORIST WOOD CHIP MULCH,
SEE STD. PLAN 262.60
SUBSOIL SCARIFIED 4" BELOW
COMPOST AMENDED LAYER
12" BELOW SOIL SURFACE)
GRASS: SEED OR SOD
1.75" OF COMPOST INCORPORATED INTO
6.25" OF SITE SOIL (TOTAL AMENDED DEPTH
OF 9.5", FOR A SETTLED DEPTH OF 8")
SUBSOIL SCARIFIED 4" BELOW
COMPOST AMENDED LAYER
12" BELOW SOIL SURFACE)
PLANTING BEDS TURF (LAWN) AREAS
0"
8"
12"
3"-4" ARBORIST
WOOD CHIP
MULCH, SEE STD.
PLAN 262.60
SUBSOIL IS
SCARIFIED 6"
BELOW IMPORTED
TOPSOIL MIX
GRASS: SEED OR SOD
6" IMPORTED
TOPSOIL MIX
COMPACTED
DEPTH)
SUBSOIL IS
SCARIFIED 6"
BELOW IMPORTED
TOPSOIL MIX
0"
6"
12"
PLANTING BEDS TURF (LAWN) AREAS
3" OF COMPOST INCORPORATED
INTO 5" OF SITE SOIL (TOTAL
AMENDED DEPTH OF 9.5", FOR A
SETTLED DEPTH OF 8")
GRASS: SEED OR SOD
PLANTING BEDS/UNDISTURBED
VEGETATION, SEE NOTE 1
UNDISTURBED TURF (LAWN) AREAS,
SEE NOTE 1
0"
OPTION 1 - NO DISTURBANCE
UNDISTURBED NATIVE SOIL UNDISTURBED NATIVE SOIL
6" IMPORTED
TOPSOIL MIX
COMPACTED
DEPTH)
GENERAL NOTES:
1.TO MEASURE SETTLED DEPTH, WATER SOIL
SUFFICIENTLY TO FULLY SATURATE WITHOUT
CAUSING EROSION
2.COMPOST TO MEET STD. PLAN 262.60.
3.COMPACTION OF TOPSOIL (WHERE REQUIRED)
TO BE TO 85% OF STANDARD PROCTOR.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC
PROJECT REQUIREMENTS.
UNDISTURBED
NATIVE VEGETATION
NOTES:
1.AREAS OF NO DISTURBANCE TO BE FENCED
AND EXISTING VEGETATION AND SOIL TO BE
PROTECTED FROM CONSTRUCTION IMPACTS.
SOIL AMENDMENT SECTIONS
STD. PLAN - 264.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGreggZimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
C.2.4 BASIC DISPERSION
2022 City of Renton Surface Water Design Manual 6/22/2022
C-59
FIGURE C.2.4.A SCHEMATIC REPRESENTATION OF A TYPICAL SPLASHBLOCK FOR BASIC
DISPERSION
SIDE VIEW
NTS
HOUSE
DOWNSPOUT
EXTENSION
SPLASH
BLOCK
ROOF DOWNSPOUT
SERVES UP TO 700 S.F.
OF ROOF UNDER
BASIC DISPERSION
SPLASH BLOCK
50' MIN. VEGETATED
FLOWPATH UNDER
BASIC DISPERSION