400 storm and surface water - everett, wa

DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATIONS

DRAWING INDEX 5

400 STORM AND SURFACE WATER

401 Concrete Inlet

402 Catch Basin Type 1

403 Catch Basin Type 1L

404 Catch Basin Type 1P (For Parking Lot)

405 Catch Basin Type 2

406 Rectangular Frame (Reversible)

407 Typical Frame and Grate Installation

409 Herringbone Grate for Grate or Solid Cover

410 Solid Cover for Catch Basin or Inlet

411 Vaned Grates for Catch Basin or Inlet

412 Open Curb Face Frame & Grate

413 Floatable Material Separator & Gas Trap For 6” or 8” Lines

414 Floatable Material Separator and/or Gas Trap (12” and Larger)

415 Typical Restrictor Installation

416 Lift Gate Assembly and Secondary Orifice Detail

418 Typical Closed Underground Detention System

421 8" Cleanout

422 Bypass Structure Type A

423 Bypass Structure Type B

424 Bypass Structure Type C

426 Rain Garden with Overflow

427 Rain Garden with Underdrain

429 Typical Detention and/or Wetpond

430 Permeable Asphalt or Concrete Pavement Section

431 Permeable Pavement on Slopes

432 Curb Cut Opening for Bioretention

433 Emergency Overflow for Pond

434 Type 2 Debris Cage

435 Pipe End Debris Barrier

436 Trench Dam

437 Bioretention or Rain Garden adjacent to Right-of-Way

438 Downspout Infiltration Trench Adjacent to Right-of-Way

4"

25"

#3 BAR HOOP

PRECAST BASE SECTION

FRAME AND VANED GRATE

RECTANGULAR ADJUSTMENT SECTION

34"24"

30"20"

5"5"

MAXIMUMINSIDE

DIAMETER

15"

12"

12"

15"

15"

* CORRUGATED POLYETHYLENE STORM SEWER PIPE

26"

(SEE NOTE 6)22"(SEE NOTE 6)

#3 BAR EACH CORNER

#3 BAR EACHCORNER18" MIN

#3 BAR HOOP

(SEE NOTE 1)ALTERNATIVE PRECAST BASE SECTION

ONE #3 BARACROSS BOTTOM

1. AS ACCEPTABLE ALTERNATIVES TO THE REBARSHOWN IN THE PRECAST BASE SECTION, FIBERS(PLACED ACCORDING TO THE WSDOT STANDARDSPECIFICATIONS), OR WIRE MESH HAVING AMINIMUM AREA OF 0.12 SQUARE INCHES PERFOOT SHALL BE USED WITH THE MINIMUMREQUIRED REBAR SHOWN IN THE ALTERNATIVEPRECAST BASE SECTION. WIRE MESH SHALL NOTBE PLACED IN THE KNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BEGREATER THAN 18". KNOCKOUTS SHALL HAVE AWALL THICKNESS OF 2" MINIMUM TO 2.5"MAXIMUM. PROVIDE A 1.5" MINIMUM GAPBETWEEN THE KNOCKOUT WALL AND THEOUTSIDE OF THE PIPE. AFTER THE PIPE ISINSTALLED, FILL THE GAP WITH JOINT MORTAR INACCORDANCE WITH WSDOT STANDARDSPECIFICATION 9-04.3.

3. THE MAXIMUM DEPTH FROM THE FINISHEDGRADE TO THE LOWEST PIPE INVERT SHALL BE 5.5'.

4. THE FRAME AND GRATE MAY BE INSTALLED WITHTHE FLANGE DOWN OR INTEGRALLY CAST INTOTHE ADJUSTMENT SECTION WITH FLANGE UP.

5. THE PRECAST BASE SECTION MAY HAVE AROUNDED FLOOR, AND THE WALLS MAY BESLOPED AT A RATE OF 1:24 OR STEEPER.

6. THE OPENING SHALL BE MEASURED AT THE TOPOF THE PRECAST BASE SECTION.

7. ALL PICKUP HOLES SHALL BE GROUTED FULL AFTERTHE INLET HAS BEEN PLACED.

PIPE ALLOWANCES

PIPE MATERIAL

4"

MIN TYP

NOTES

REINFORCED ORPLAIN CONCRETE

ALL METAL PIPE

*CPSSP(WSDOT STD. SPEC. 9-05.20)SOLID WALL PVC(WSDOT STD. SPEC. 9-05.12(1))PROFILE WALL PVC(WSDOT STD. SPEC. 9-05.12(2))

2", 4", 6", 12" OR 24"

ONE #3 BAR HOOP FOR 6" HEIGHTINCREMENT, SPACED EQUALLY

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CITY OF EVERETT

PUBLIC WORKS DEPARTMENT

TITLE

City Engineer Section Manager CAD Manager Drawn By Current Rev Date

STANDARD DRAWING No.

WSDOT STD PLAN B-25.60-00 ACCEPTABLE SUBSTITUTE

HEATHER GRIFFIN

CONCRETE INLET




26"

(SEE NOTE 6) 22"(SEE NOTE 6)

3"

4"

44"

21" M

IN

34"

24"30"20"

5"5"

#3 BAR EACH WAY

#3 BAR HOOP

NOTES

ALTERNATIVE PRECAST BASE SECTION(SEE NOTE 1)

1. AS ACCEPTABLE ALTERNATIVES TO THE REBARSHOWN IN THE PRECAST BASE SECTION, FIBERS(PLACED ACCORDING TO THE WSDOT STANDARDSPECIFICATIONS), OR WIRE MESH HAVING AMINIMUM AREA OF 0.12 SQUARE INCHES PER FOOTSHALL BE USED WITH THE MINIMUM REQUIREDREBAR SHOWN IN THE ALTERNATIVE PRECAST BASESECTION. WIRE MESH SHALL NOT BE PLACED IN THEKNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATERTHAN 20". KNOCKOUTS SHALL HAVE A WALLTHICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM.PROVIDE A 1.5" MINIMUM GAP BETWEEN THEKNOCKOUT WALL AND THE OUTSIDE OF THE PIPE.AFTER THE PIPE IS INSTALLED, FILL THE GAP WITHJOINT MORTAR IN ACCORDANCE WITH STANDARDWSDOT SPECIFICATION 9-04.3.

3. THE MAXIMUM DEPTH FROM THE FINISHED GRADETO THE LOWEST PIPE INVERT SHALL BE 5.5'.

4. THE FRAME AND GRATE MAY BE INSTALLED WITHTHE FLANGE DOWN, OR INTEGRALLY CAST INTO THEADJUSTMENT SECTION WITH FLANGE UP.

5. THE PRECAST BASE SECTION MAY HAVE A ROUNDEDFLOOR, AND THE WALLS MAY BE SLOPED AT A RATEOF 1:24 OR STEEPER.

6. THE OPENING SHALL BE MEASURED AT THE TOP OFTHE PRECAST BASE SECTION.

7. ALL PICKUP HOLES SHALL BE GROUTED FULL AFTERTHE BASIN HAS BEEN PLACED.


#3 BAR HOOP


2", 4", 6", 12" OR 24"

MAXIMUMINSIDE

DIAMETER

15"

12"

12"

15"

15"


PIPE ALLOWANCES

PIPE MATERIAL


ALL METAL PIPE


4"

MIN TYP

#3 BAR EACH SIDE

#3 BAR EACHCORNER

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CATCH BASIN TYPE 1


HEATHER GRIFFIN


#3 BAR HOOP

NOTES

ALTERNATIVE PRECAST BASE SECTION(SEE NOTE 1)

1. AS ACCEPTABLE ALTERNATIVES TO THE REBARSHOWN IN THE PRECAST BASE SECTION, FIBERS(PLACED ACCORDING TO THE WSDOT STANDARDSPECIFICATIONS), OR WIRE MESH HAVING AMINIMUM AREA OF 0.12 SQUARE INCHES PER FOOTSHALL BE USED WITH THE MINIMUM REQUIREDREBAR SHOWN IN THE ALTERNATIVE PRECAST BASESECTION. WIRE MESH SHALL NOT BE PLACED IN THEKNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATERTHAN 26". KNOCKOUTS SHALL HAVE A WALLTHICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM.PROVIDE A 1.5" MINIMUM GAP BETWEEN THEKNOCKOUT WALL AND THE OUTSIDE OF THE PIPE.AFTER THE PIPE IS INSTALLED, FILL THE GAP WITHJOINT MORTAR IN ACCORDANCE WITH WSDOTSTANDARD SPECIFICATION 9-04.3.









32"


2"

4"

44"

34"24"

30"20"

5"5"


#3 BAR EACH WAY

#3 BAR EACH CORNER

40"

REDUCING SECTION

24"

36"20"

8"8"

TWO #3 BAR HOOPS

6"

2", 4", 6", 12" OR 24"

MAXIMUMINSIDE

DIAMETER

21"

18"

18"

21"

21"


PIPE ALLOWANCES

PIPE MATERIAL


ALL METAL PIPE


4"

MIN TYP

16"

MIN

#3 BAR HOOP

#3 BAR EACH SIDE

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CATCH BASIN TYPE 1L


HEATHER GRIFFIN


#3 BAR HOOP

26"


4"

56"

34"

24"30"20"

5"5"


#3 BAR EACH WAY

#3 BAR EACH SIDE

#3 BAR EACH CORNER

NOTES1. AS ACCEPTABLE ALTERNATIVES TO THE REBAR

SHOWN IN THE PRECAST BASE SECTION, FIBERS(PLACED ACCORDING TO THE WSDOT STANDARDSPECIFICATIONS), OR WIRE MESH HAVING AMINIMUM AREA OF 0.12 SQUARE INCHES PER FOOTSHALL BE USED WITH THE MINIMUM REQUIREDREBAR SHOWN IN THE ALTERNATIVE PRECAST BASESECTION. WIRE MESH SHALL NOT BE PLACED IN THEKNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATERTHAN 18". KNOCKOUTS SHALL HAVE A WALLTHICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM.PROVIDE A 1.5" MINIMUM GAP BETWEEN THEKNOCKOUT WALL AND THE OUTSIDE OF THE PIPE.AFTER THE PIPE IS INSTALLED, FILL THE GAP WITHJOINT MORTAR IN ACCORDANCE WITH WSDOTSTANDARD SPECIFICATION 9-04.3.






ALTERNATIVE PRECAST BASE SECTIONPRECAST BASE SECTION(SEE NOTE 1)



2", 4", 6", 12" OR 24"

MAXIMUMINSIDE

DIAMETER

15"

12"

12"

15"

15"


PIPE ALLOWANCES

PIPE MATERIAL


ALL METAL PIPE


32"

MIN

4"

MIN TYP

#3 BAR HOOP

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CATCH BASIN TYPE 1P(FOR PARKING LOT)


HEATHER GRIFFIN

SEPARATE BASECAST-IN-PLACE

INTEGRAL BASEPRECAST WITH RISER

SEPARATE BASEPRECAST

48"54"60"72"84"

PIPE MATERIAL WITH MAXIMUM INSIDE DIAMETER

CONCRETE

96"

6"8"8"8"

12"12"

36"42"48"60"72"84"

8"8"8"

12"12"12"

84" 54" 60" 54" 48" 48"

24"30"36"42"

60"

30"36"42"54"

72"

24"30"36"42"

60"

30"36"42"48"

48"

30"36"42"48"

48"

48"54"60"72"

96"

CATCHBASIN

DIAMETER

WALLTHICKNESS

BASETHICKNESS

MAXIMUMKNOCKOUT

SIZE

MINIMUMDISTANCEBETWEEN

KNOCKOUTS

ALLMETAL

SOLIDWALL

PVC (b)

PROFILEWALL

PVC (c)

CATCHBASIN

DIAMETER

NOTES1. NO STEPS ARE REQUIRED WHEN HEIGHT IS 4' OR

LESS.

2. THE BOTTOM OF THE PRECAST CATCH BASIN MAYBE SLOPED TO FACILITATE CLEANING.

3. THE RECTANGULAR FRAME AND GRATE MAY BEINSTALLED WITH THE FLANGE UP OR DOWN. THEFRAME MAY BE CAST INTO THE ADJUSTMENTSECTION.

4. KNOCKOUTS SHALL HAVE A WALL THICKNESS OF2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A1.5" MINIMUM GAP BETWEEN THE KNOCKOUTWALL AND THE OUTSIDE OF THE PIPE. AFTER THEPIPE IS INSTALLED, FILL THE GAP WITH JOINTMORTAR IN ACCORDANCE WITH WSDOTSTANDARD SPECIFICATION 9-04.3.

5. CONCRETE STRUCTURE SHALL MEET THEREQUIREMENTS OF AASHTO M199.

6. FOR MANHOLE COVER SEE STANDARD DRAWING610 AND 611. REFER TO DESIGN ANDCONSTRUCTION STANDARDS ANDSPECIFICATIONS SECTION 4 FOR ADDITIONALREQUIREMENTS.

7. STEPS PER STANDARD DRAWING 609.

4"4.5"5"6"8"8"

CATCH BASIN DIMENSIONS

PIPE ALLOWANCES

a. CORRUGATED POLYETHYLENE STORM SEWER PIPE, WSDOTSTANDARD PLAN 9-05.20.

b. WSDOT STANDARD PLAN 9-05.12(1).c. WSDOT STANDARD PLAN 9-05.12(2).

6"

12"

12"

TYP

12"

6"

15' 0

" MAX

.(F

OR

MAI

NTE

NAN

CE)

16" M

AX2"

MIN

28" M

AX

FLAT SLAB TOP

RECTANGULAR ADJUSTMENTSECTION OR CIRCULARADJUSTMENT SECTION

CATCH BASIN FRAME ANDVANED GRATE ORMANHOLE RING AND COVER

SEE TABLE

MORTAR TYP

MORTARFILLET

24" M

IN

1" M

IN2.

5" M

AXTY

P

12" M

AX

STEPS ORLADDER

REINFORCINGSTEEL TYP

GRAVELBACKFILL FORPIPE ZONEBEDDING

GRAVEL BACKFILL FORPIPE ZONE BEDDING

"O" RING

(48" TO 72" ONLY)

CPSSP(a)

FLOWFLOW

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CATCH BASIN TYPE 2


HEATHER GRIFFIN

SECTION A-A

TOP

25 1

/4"

29 1/4"

BOLT-DOWN HOLE TYP5/8" - 11 NC, SEE BOLTDOWN DETAIL AND NOTE 2

24 1/4"

NOTES1. THIS FRAME IS DESIGNED TO ACCOMMODATE

20"X24" GRATES OR COVERS AS SHOWN ONSTANDARD DRAWINGS 409 , 410 AND 411.

2. BOLT-DOWN CAPABILITY IS REQUIRED ON ALLFRAMES, GRATES AND COVERS UNLESS SPECIFIEDOTHERWISE IN THE CONTRACT. PROVIDE TWO HOLESIN THE FRAME THAT ARE VERTICALLY ALIGNED WITHTHE GRATE OR COVER SLOTS. THE FRAME SHALLACCEPT THE 5/8" - 11 NC X 2" STAINLESS STEELRECESSED ALLEN HEAD CAP SCREW BEING TAPPED,OR OTHER APPROVED MECHANISM. LOCATION OFBOLT DOWN HOLES VARIES BY MANUFACTURER.

3. REFER TO WSDOT STANDARD SPECIFICATION9-05.15(2) AND DESIGN CONSTRUCTION STANDARDSAND SPECIFICATIONS SECTION 4 FOR ADDITIONALREQUIREMENTS.

BOLT-DOWN DETAIL(SEE NOTE 2)

DETAIL B

GRATE

FRAME

1 5/8"

3/4"

4 1/

2"

7/8"

1/8"

3/4"

AA

FLANGEUPWARD

FRAME CAST INTO6" OR 12" PRECASTADJUSTMENTSECTION.SEE STANDARDDRAWINGS 401,402, 403 OR 404FOR ADJUSTMENTSECTION DETAILS

STAINLESS STEELRECESSED ALLENHEAD CAP SCREW5/8" - 11 NC x 2

DETAIL B

1 5/

8"1

1/4"

2 1/2"

FLANGE UP

FLANGE DOWN

ANYTHICKNESS OFPRECASTADJUSTMENTSECTION

12/30/2016

406


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RECTANGULAR FRAME(REVERSIBLE)

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WSDOT STD PLAN B-30.10-01, ACCEPTABLESUBSTITUTE EXCEPT ALL STEEL RECESSED ALLEN

SCREWS MUST BE STAINLESS STEEL

HEATHER GRIFFIN

GUTT

ER F

LOW

LIN

E

10" 10"

11"

GROUT BETWEEN SHIMS WITH4000 PSI CEMENT CONCRETE

PLASTIC SHIM STRIPS(MEADOW BURKE, DAYTONSUPERIOR OR EQUAL) WOODWEDGES/SHIMS ARE NOT ALLOWED

GRATE SEESTANDARDDRAWINGS409, 410 & 411

TYPE A-1 CURB& GUTTERSEE STANDARDDRAWING 307

SOLID BRICKS ORRECTANGULARADJUSTMENT SECTION

FRAME, SEE STANDARDDRAWING 406

MATCH EXISTING SLOPE OFGUTTER OR STREET CROWN

CEN

TERL

INE

OF

GRAT

E

SOLID BRICKS ORRECTANGULARADJUSTMENT SECTION,SEE STANDARDDRAWINGS 401, 402,403 OR 404.

NOTES1. FRAME AND GRATE SHALL BE INSTALLED WITHIN ± 1/4" OF FLUSH WITH FINISHED GRADE.

2. ADJUST FRAME AND GRATE TO MATCH PAVEMENT SLOPE.

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TYPICAL FRAME ANDGRATE INSTALLATION

TOP

ISOMETRIC

24"

1" OPENIN

G,TYP20"

NOTES1. BOLT-DOWN CAPABILITY IS REQUIRED ON ALL

FRAMES, GRATES AND COVERS. PROVIDE TWOHOLES IN THE FRAME THAT ARE VERTICALLYALIGNED WITH THE GRATE OR COVER SLOTS.THE FRAME SHALL ACCEPT THE 5/8" - 11 NC X 2"STAINLESS STEEL RECESSED ALLEN HEAD CAPSCREW BEING TAPPED, OR OTHER APPROVEDMECHANISM. LOCATION OF BOLT DOWN HOLESVARIES BY MANUFACTURER.

2. REFER TO WSDOT STANDARD SPECIFICATION9-05.15(2) AND DESIGN CONSTRUCTIONSTANDARDS AND SPECIFICATIONS SECTION 4 FORADDITIONAL REQUIREMENTS.

3. FOR FRAME DETAILS, SEE STANDARD DRAWING406.

4. THE THICKNESS OF THE GRATE SHALL NOTEXCEED 1 5/8".

5. VANED GRATES SHALL BE SPECIFIED, SEESTANDARD DRAWING 411 . THE CITY OF EVERETTSHALL GRANT THE USE OF A HERRINGBONEGRATE ON A CASE BY CASE BASIS.

6. ALL GRATES MUST BE STENCILED OR STAMPED"DUMP NO WASTE, DRAINS TO _", WHERE THEBLANK SHALL BE FILLED IN WITH "STREAM","LAKE", "RIVER", "PUGET SOUND", OR"WETLAND" AS APPLICABLE TO THE LOCATIONWHERE THE GRATE IS TO BE INSTALLED.

(SEE NOTE 1)SECTION A-A

1/2"

3/4"

1 1/4"

5/8"

AA

BOLT-DOWN SLOTDETAIL A

℄

DETAIL A

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RYAN SASS HEATHER GRIFFIN PAUL WILHELM WRB

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HERRINGBONE GRATEFOR CATCH BASIN OR INLET

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AutoCAD SHX Text

FOUNDRY NAME

AutoCAD SHX Text

DI

AutoCAD SHX Text

THIS SIDE TOWARD CURB

AutoCAD SHX Text

DUMP NO WASTE

AutoCAD SHX Text

DRAINS TO STREAM

SECTION A-A

TOP SECTION B-B

ISOMETRIC SECTION C-C

1. BOLT-DOWN CAPABILITY IS REQUIRED ON ALLFRAMES, GRATES AND COVERS. PROVIDE TWOHOLES IN THE FRAME THAT ARE VERTICALLYALIGNED WITH THE GRATE OR COVER SLOTS.THE FRAME SHALL ACCEPT THE 5/8" - 11 NC X2" STAINLESS STEEL RECESSED ALLEN HEAD CAPSCREW BEING TAPPED, OR OTHER APPROVEDMECHANISM. LOCATION OF BOLT DOWNHOLES VARIES BY MANUFACTURER.

2. ALTERNATIVE REINFORCING DESIGNS AREACCEPTABLE IN LIEU OF THE RIB DESIGN.

3. REFER TO WSDOT STANDARD SPECIFICATION9-05.15(2) AND DESIGN CONSTRUCTIONSTANDARDS AND SPECIFICATIONS SECTION 4FOR ADDITIONAL REQUIREMENTS.

4. FOR FRAME DETAILS, SEE STANDARD DRAWING406.

SECTION D-D

LIFT HANDLE

5"

3 1/2"

1 1/2"

4"

3"

26" R(SEE NOTE 2)

3/4" DIA HOLE

STAINLESS STEEL1/2" DIA BOLT

1 1/2"

4 3/4"

1 5/

8" M

AX

2 1/2" DIAHOLE

24"

20"

1 1/

2"

AA

B

B

C

C

NOTES

℄

DETAIL A

(SEE NOTE 1)

1/2"

3/4"

1 1/4"

5/8"


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SOLID COVERFOR CATCH BASIN OR INLET

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DIRECTION OF FLOW

1. BOLT-DOWN CAPABILITY IS REQUIRED ON ALLFRAMES, GRATES AND COVERS. PROVIDE TWOHOLES IN THE FRAME THAT ARE VERTICALLYALIGNED WITH THE GRATE OR COVER SLOTS. THEFRAME SHALL ACCEPT THE 5/8" - 11 NC X 2"STAINLESS STEEL RECESSED ALLEN HEAD CAP SCREWBEING TAPPED, OR OTHER APPROVED MECHANISM.LOCATION OF BOLT DOWN HOLES VARIES BYMANUFACTURER.

2. REFER TO WSDOT STANDARD SPECIFICATION9-05.15(2) AND DESIGN CONSTRUCTIONSTANDARDS AND SPECIFICATIONS SECTION 4 FORADDITIONAL REQUIREMENTS.

3. FOR FRAME DETAILS, SEE STANDARD DRAWINGS406 AND 407.

4. ALL GRATES MUST BE STENCILED OR STAMPED"DUMP NO WASTE, DRAINS TO _", WHERE THEBLANK SHALL BE FILLED IN WITH "STREAM", "LAKE","RIVER", "PUGET SOUND", OR "WETLAND" ASAPPLICABLE TO THE LOCATION WHERE THE GRATE ISTO BE INSTALLED.

SECTION B-B

AA

B

B

SECTION A-A

NOTES

3"5"

5"5"3"

5"5"

5"20

"

1"

24"7 OR 8 EQUAL SPACES

1 5/

8" M

AX

CC

B

B

SECTION C-C

24"4 EQUAL SPACES

1 5/

8" M

AX

4 EQUAL SPACES

ISOMETRIC

(SEE NOTE 1)SECTION E-E

EE

DETAIL A

1/2"

3/4"

1 1/4"

5/8"


℄

℄

STANDARD DIRECTIONAL GRATE

BI-DIRECTIONAL OPTION

ISOMETRIC

DETAIL A

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VANED GRATESFOR CATCH BASIN OR INLET

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WSDOT STD PLAN B-30.30-01 AND B-30.40-01, ACCEPTABLESUBSTITUTE EXCEPT ALL STEEL RECESSED ALLEN SCREWS

MUST BE STAINLESS STEEL

AutoCAD SHX Text

FOUNDRY NAME

AutoCAD SHX Text

DI

AutoCAD SHX Text

FLOW

AutoCAD SHX Text

FLOW

AutoCAD SHX Text

FOUNDRY NAME

AutoCAD SHX Text

DI

AutoCAD SHX Text

DRAINS TO STREAM

AutoCAD SHX Text

DUMP NO WASTE

AutoCAD SHX Text

DRAINS TO STREAM

AutoCAD SHX Text

DUMP NO WASTE

DETAIL A

6

1

SECTION A-A

TOP VIEW FRAME DETAIL

1. THIS INLET REQUIRES THE PRECAST CATCH BASINUNIT TO BE ROTATED 90 DEGREES SO THAT THENARROW SIDE IS PARALLEL TO THE CURB LINE.WHEN CALCULATING OFFSETS FROM CURB TOCENTERLINE OF THE PRECAST CATCH BASIN, PLEASENOTE THAT THE CENTERLINE OF THE GRATE IS NOTTHE CENTERLINE OF THE PRECAST CATCH BASIN.SEE SECTION A.

2. THE DIMENSIONS OF THE FRAME AND HOOD MAYVARY SLIGHTLY AMONG DIFFERENTMANUFACTURERS. THE FRAME MAY HAVE CASTFEATURES INTENDED TO SUPPORT A DEBRISGUARD. HOOD UNITS MAY BE MOUNTED INSIDEOR OUTSIDE OF THE FRAME. THE METHODS FORFASTENING THE SAFETY BAR / DEBRIS GUARD TOTHE HOOD MAY VARY. THE HOOD MAY INCLUDECASTING LUGS. THE TOP OF THE HOOD MAY BECAST WITH A PATTERN.

3. ATTACH THE HOOD TO THE FRAME WITH TWO 3/4"× 2" STAINLESS STEEL HEX HEAD BOLTS, NUTS, ANDOVERSIZE WASHERS. THE WASHERS SHALL HAVEDIAMETERS ADEQUATE TO ENSURE FULL BEARINGACROSS THE SLOTS.

4. BOLT-DOWN CAPABILITY IS REQUIRED ON ALLFRAMES, GRATES AND COVERS, UNLESS SPECIFIEDIN THE CONTRACT. PROVIDE TWO HOLES IN THEFRAME THAT ARE VERTICALLY ALIGNED WITH THEGRATE SLOTS. THE FRAME SHALL ACCEPT THE 5/8" -11 NC × 2" STAINLESS STEEL ALLEN HEAD CAPSCREW BY BEING TAPPED, OR OTHER APPROVEDMECHANISM. THE LOCATION OF BOLT-DOWNHOLES VARIES AMONG DIFFERENTMANUFACTURERS. SEE BOLT-DOWN DETAIL,STANDARD DRAWING 406.

5. ONLY DUCTILE IRON VANED GRATES SHALL BE USED.SEE STANDARD DRAWING 411 FOR GRATE DETAILS.REFER TO WSDOT STANDARD SPECIFICATION9-05.15(2) AND DESIGN CONSTRUCTIONSTANDARDS AND SPECIFICATIONS SECTION 4 FORADDITIONAL REQUIREMENTS.

6. THIS PLAN IS INTENDED TO SHOW THEINSTALLATION DETAILS OF A MANUFACTUREDPRODUCT. THIS PLAN IS NOT INTENDED TO SHOWTHE SPECIFIC DETAILS NECESSARY TO FABRICATETHE CASTINGS DEPICTED IN THIS DRAWING.

NOTES

ISOMETRIC VIEW COMBINATION INLETFRAME, HOOD, AND VANED GRATE

CURB OR CURB& GUTTER

MATCH TOP OF HOODTO TOP OF CURB (TYP.)

HOOD

SAFETY BAR / DEBRIS GUARD

20" X 24" VANED GRATE

FRAME

CATCH BASIN℄

HOLE OR SLOT FORATTACHING HOOD (TYP)

FRAME

TOP OF GRATE

HOOD

LEVEL

0 TO 1"CLR

1" M

IN1"R

APPROX.5 1/2"

29" MIN

20 1/4"1"

MINTYP

24 1

/4"

29" M

IN

7"

3"

34"(WIDE SIDE)CB TYPE 1

40"(WIDE SIDE)CB TYPE 1L

FACE OF CURB

3

2

1/2" MIN

1

A

A

2

4

1 1/

2"M

INTY

P

OPE

NIN

GHE

IGHT

4" M

IN

℄ GRATE

APPROXIMATEHALF OPENINGHEIGHT

TYP

TYP

12/30/2016RYAN SASS HEATHER GRIFFIN PAUL WILHELM WRB

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OPEN CURB FACEFRAME AND GRATE

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412

24"MAX

32"

6" O

R 12

"6"

44"

1" VENT HOLE WHENNOT CONNECTED TOCOMBINED SEWER

6" OR 8" PVC PLUG

ADAPTOR OR PIPE JOINT

18"

6" MIN

6" OR 8" PVC PIPE

SAND COLLAR OR COR-N-SEAL TYPICAL

6" OR 8" PVC PIPE AS REQUIRED

CATCH BASIN TYPE 1L, SEE STANDARD DRAWING 403

24"

6" OR 8" PVCFACTORY TEE

FLOWFLOW

1. INSTALL LOCKING FRAME & GRATE PER STANDARDDRAWING 406. PROVIDE SOLID COVER PERSTANDARD DRAWING 410 WHEN STRUCTURE WILLNOT RECEIVE SURFACE RUNOFF.

NOTES

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STANDARD DRAWING No.FLOATABLE MATERIALSEPARATOR & GAS TRAP

FOR 6" OR 8" LINEST:\A

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PM

1. INSTALL CATCH BASIN TOP, FRAME, GRATE ANDSECTIONS SO THAT LIFT GATE IS VISIBLETHROUGH OPENING AND STEPS CLEAR INLETAND RESTRICTOR UNIT.

2. INSTALL LOCKING FRAME & GRATE OR COVERPER STANDARD DRAWINGS 406 AND 610.FRAME AND COVER PER STANDARD DRAWING610 IS REQUIRED IF INSTALLATION IS NOT INPAVED AREA OR IS NOT TO FUNCTION AS ACATCH BASIN.

3. 1" VENT HOLE WHEN NOT CONNECTED TOCOMBINED SEWER SYSTEM.

4. SEPARATOR ASSEMBLY SEE STANDARDDRAWING 415 AS APPLICABLE.


6. MIN CLEARANCE: 36" FOR OUTLETS OF 24" ANDLARGER 18", FOR OUTLETS OF 18" AND SMALLER

7. BAND STRAP WITH GASKET

8. SECURE SEPARATOR TO CATCH BASIN WITH 8 GAALUMINUM STRAP. BOLT TO CATCH BASIN WALLWITH STAINLESS STEEL ANCHOR BOLTS AND TOSEPARATOR UNIT.

9. FOR LIFT GATE ASSEMBLY AND ALUMINUM RODLIFT HANDLE ASSEMBLY SEE STANDARDDRAWING 416.

NOTES

36" M

IN

24" M

IN

1 1/4" MAX

36" CLEAR ZONE

GROUT (TYP)

1

8

7

3

9

7

8

FLOWFLOW

SECTION

PLAN

FLOW

24" MIN TYP

FLOW

TYPE 2 CATCH BASIN(SIZE DETERMINED BY CLEARANCE REQIREMENTS,

- 54" CATCH BASIN DIA MIN)

5

24" MIN

404/25/2017

414


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STANDARD DRAWING No.FLOATABLE MATERIALSEPARATOR AND/OR GAS TRAP

FOR 12" AND LARGER LINEST:\A

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PM

24" M

IN24

" MIN

1. INSTALL CATCH BASIN TOP, FRAME, GRATE ANDSECTIONS SO THAT LIFT GATE IS VISIBLETHROUGH OPENING AND STEPS CLEAR INLETAND RESTRICTOR UNIT.

2. INSTALL LOCKING FRAME AND GRATE OR COVERSEE STANDARD DRAWINGS 405 OR 610. FRAMEAND COVER PER STANDARD DRAWING 610 ISREQUIRED IF INSTALLATION IS NOT IN PAVEDAREA OR IS NOT TO FUNCTION AS A CATCHBASIN.

3. RESTRICTOR ASSEMBLY SEE STANDARDDRAWING 416.

4. FOR STEPS SEE STANDARD DRAWING 609.

5. BAND STRAP WITH GASKET.

6. SECURE RESTRICTOR TO CATCH BASIN WITH 8GAUGE ALUMINUM STRAPS AND BOLT TOCATCH BASIN WALL WITH STAINLESS STEELANCHOR BOLTS. ONE STRAP ABOVE AND BELOWOUTLET REQUIRED, INTERMEDIATE STRAPSREQUIRED FOR RESTRICTOR RISERS GREATERTHAN 12' ABOVE OUTLET.

7. FOR ALUMINUM ROD LIFT HANDLE ASSEMBLYSEE STANDARD DRAWING 416.

NOTES

PLAN

ELEVATION

1 1/4"

DETAIL "A" TYPICAL RESTRICTOR INSTALLATION

5

6

5

34

2

7

6

TYPE 2 CATCH BASIN54" DIA MIN

24" MINCLEARANCEFROM ALLAPPURTENANCES

GROUT

6

1

FLOWFLOW

FLOWFLOW

6" M

INCL

EAR

24"

MIN

GROUT

12/06/2019

415


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PUBLIC WORKS

DEPARTMENT

TYPICAL RESTRICTORINSTALLATION

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DETAIL "A" SECONDARY ORIFICE

LIFT GATE SHALL BE CONSTRUCTED OF:1/4" R-6061-T6 ALUMINUM WITH CLOSED CELLNEOPRENE PER ASTM 1056-67 CHEMICALRESISTANT (OIL & GREASE), OZONE RESISTANT, -20°TO 180° F SERVICE TEMPERATURE

ALL PARTS TO BE R-6061-T6 ALUMINUM

INVERT

8" OR 12", FOR SIZESEE DETAIL "B"

DETAIL "C" LIFT GATE ASSEMBLY & GATE DETAIL

BAND ELBOW TO STUBWITH REMOVABLE WATERTIGHT COUPLING

INVERT ELEV PER PLANS

STUB WELDEDTO STAND PIPE

STANDPIPE WALLELBOW

ORIFICE PLATE WELDEDTO STUB. ORIFICEMACHINE-CUT

ALL 1/4" R-6061-T6ALUMINUM

LIFT GATE & PIPE,SEE DETAIL "B"

WELD GATEASSEMBLY TO PIPE

STAINLESS STEELBOLTS WITHLOCKING NUTS

6"

ALUMINUM RODLIFT HANDLEASSEMBLY

RESTRICTOR UNIT SHALL BECONSTRUCTED OF CORRUGATEDALUMINUM PIPE ALCLAD 3004-H34,ASSHTO M 197-82(1986) OR EQUAL.GALVANIZED STEEL WILL NOT BEPERMITTED.

DETAIL "C"

C

D°

24" M

INA

OVERFLOW EL=______


ORIFICE INVERT EL=____DIA=____

ALUMINUM LIFT GATE


RESTRICTOR PLATE WITH ORIFICEDIA=____

OPTIONAL NOTCH WEIR ORIFICEEL= _____ , LENGTH=_____

℄

24"MIN

12" OPENING

24" AND LARGERDESCRIPTION

DCBA

DIM

ANGLEGATE SIZE

CLEAN OUTOUTLET

8" OPENING

18" AND SMALLER

42°±

8" ID

SIZE

DETAIL "B" TYPICAL RESTRICTOR ASSEMBLY

34°±

10" ID

DETAIL "A"

6"

B

03/08/2017

416


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LIFT GATE ASSEMBLY &SECONDARY ORIFICE DETAILT:

\ACA

D\EP

S-CO

E DE

SIGN

& C

ON

STR

SPEC

S FO

R DE

VELO

PMEN

T\IN

-WO

RK\S

TD41

6.DW

GPL

OTT

ED: 1

/23/

2019

4:3

9 PM

1. DETENTION STRUCTURE SHALL BE FABRICATED FROM ONE OF THE FOLLOWING:A. CORRUGATED ALUMINUM PIPE 12 GAGE MIN.B. HIGH DENSITY POLYETHYLENE PIPE.C. CORRUGATED POLYETHYLENE STORM SEWER PIPE.D. STEEL RIB REINFORCED POLYETHYLENE PIPE.

2. ANNUAL INSPECTIONS AND CLEANING REQUIRED BY OWNER TO ENSURE PROPER OPERATION OF DETENTION SYSTEM.

3. W = MAXIMUM WIDTH OF TRENCH FOR PIPE/VAULT PER MANUFACTURER INSTALLATION INSTRUCTIONS.

4. COMPACT IN 8" LIFTS TO 90% MAX DENSITY.

5. INLET AND OUTLET PIPE INVERTS SHALL MATCH BOTTOM OF VAULT ELEVATION.

6. DISTANCE BETWEEN ACCESS POINTS SHALL NOT EXCEED 100'. PROVIDE ACCESS RISERS AS NEEDED BETWEEN THEMANHOLES.

7. TANKS LARGER THAN 48" IN DIAMETER MAY BE CONNECTED TO ADJOINING STRUCTURES WITH A SHORT LENGTH OF 48"DIAMETER PIPE. PIPE SHALL BE OF THE SAME MATERIAL AS THE TANK. CONNECTING PIPE BANDS AND/OR COUPLINGSSHALL BE AS APPROVED BY THE CITY OF EVERETT.

8. THE OUTLET PIPE FROM THE FLOW CONTROL RISER SHALL BE ELEVATED 6" ABOVE THE DETENTION PIPE BOTTOM TOCREATE DEAD STORAGE FOR SEDIMENT.

NOTES

A

A

TYPE 2 - 72" CATCH BASINWITH 2' MIN CATCH PERSTANDARD DRAWING 405

DETENTION PIPE/VAULT(DIA & LENGTH PER PLANS)

48" DIA

RESTRICTORINSTALLATIONPER STANDARDDRAWING 415

48" DIA

NORMAL WATER LEVEL

LOCKING COVER SEESTANDARD DRAWING 610

FINISHED GRADE, SEEPLANS & SPECIFICATIONS

2" MIN DIA AIR VENT PIPEREQUIRED WHEN THERE IS NOACCESS RISER ON VAULT

COMPACT IN 8" LIFTSTO 90% MAX DENSITY

CRU

SHED

SU

RFAC

ING

BASE

CO

URS

E12

"M

IN DETENTION PIPE DIAPER PLANS

W

ELEVATION

2' MAX

LEVEL

SECTION A-A

2' MAX

FLOW

6" M

IN

FINSHEDGRADE

FLOW

VAULT OUTLET

SEE NOTE 8

12/3/2020

418


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PUBLIC WORKSDEPARTMENT

TYPICAL CLOSEDUNDERGROUND

DETENTION SYSTEMT:\A

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DWG

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TTED

: 12/

3/20

20 1

0:58

AM

T:\A

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TTED

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PM

03/13/2017

421

RYAN SASS HEATHER GRIFFIN PAUL WILHELM ESH

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8 INCH STORMWATERCLEAN-OUT

NOTES1. 8" PVC THREADED PLUG MAYBE SUBSTITUTED FOR

CAST IRON RING AND COVER IN LANDSCAPING AREA.

10"9"

8 3/4"

15"8"

7 3/4"7"

1/2"

5/8"

2"1/

2"

1 1/

4"

24"

12" 12"

4 3/4"8"

1"

1"

1/2"

AA

4"

PLAN

SECTION A-ACAST IRON RING AND COVER

3/4" RAISED SQUARES,3/4" APART, 1/8" HIGH

1/2" WIDE, 1/8" HIGHRAISED BORDER

FIBER JOINTPACKING45° BEND

RUNOFFTREATMENTFACILITYFLOW

PLAN

RUNOFF TREATMENTDESIGN WATERSURFACE ELEVATION

CONCRETE VAULT OR TYPE 2 CATCH BASIN(SIZE DETERMINED BY CLEARANCE REQIREMENTS,

- 60" CATCH BASIN MIN)

NOTES

SECTION

4" DIA ORLARGERPIPE

REINFORCED CONCRETE WEIRPRECAST INTO STRUCTURE ORATTACHED AT BOTH SIDES WITH FULLHEIGHT WATER TIGHT CONNECTION.

INLET

1. WATER QUALITY OUTFLOW PIPE SIZED TOCONVEY THE WATER QUALITY FLOW RATEAT THE RUNOFF TREATMENT DESIGNWATER SURFACE ELEVATION.

2. THE RUNOFF TREATMENT DESIGN WATERSURFACE ELEVATION SHALL BE A MINIMUMOF 2x THE PIPE DIAMETER ABOVE THE PIPEINVERT. WEIR HEIGHT SHALL BE AT RUNOFFTREATMENT DESIGN WATER SURFACEELEVATION.

3. INLET PIPE MAY BE AT OR BELOW THERUNOFF TREATMENT DESIGN WATERSURFACE ELEVATION, BUT BACKWATEREFFECTS ON THE UPSTREAM SYSTEM MUSTBE ACCOUNTED FOR.

4. WEIR SHALL HAVE #4 BAR AT 12" SPACINGEACH WAY.


6. INSTALL LOCKING FRAME AND GRATE ORCOVER PER STANDARD DRAWING 406 AND407. FRAME AND COVER PER STANDARDDRAWING 610 IS REQUIRED IF INSTALLATIONIS NOT IN PAVED AREA OR IS NOT TOFUNCTION AS CATCH BASIN.

MANHOLE RING ANDCOVER WITHLOCKING BOLTS. SEESTANDARD DRAWING610

INLET

FLOW

BYPASSFLOW

BYPASSFLOW


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BYPASS STRUCTURETYPE A

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NOTES1. FLOATABLE MATERIAL BAFFLE SEE STANDARD

DRAWING 424, WITHOUT VENT HOLE.

2. CAP OR PLATE WITH 1" DIAMETER VENT HOLE

3. RUNOFF TREATMENT DESIGN STORMWATERSURFACE ELEVATION, PER PLANS.

4. FOR LIFT GATE ASSEMBLY AND ALUMINUM RODLIFT HANDLE ASSEMBLY SEE STANDARD DRAWING416.

5. WATER QUALITY OUTFLOW PIPE SIZED TOCONVEY THE WATER QUALITY FLOW RATE AT THERUNOFF TREATMENT DESIGN WATER SURFACEELEVATION. AN 8" DIAMETER MINIMUM ORIFICEPLATE MAY BE INSTALLED IN THE WATER QUALITYOUTFLOW PIPE TO FURTHER REDUCE DISCHARGERATES.

6. THE RUNOFF TREATMENT DESIGN WATERSURFACE ELEVATION SHALL BE A MINIMUM OF 2XTHE PIPE DIAMETER ABOVE THE PIPE INVERT.

7. INLET PIPE MAY BE AT OR BELOW THE RUNOFFTREATMENT DESIGN WATER SURFACE ELEVATION,BUT BACKWATER EFFECTS ON THE UPSTREAMSYSTEM MUST BE ACCOUNTED FOR.

8. FOR TYPICAL RESTRICTOR ASSEMBLY AND LIFTGATE ASSEMBLY SEE STANDARD DRAWINGS 415AND 416.


10. INSTALL LOCKING FRAME AND GRATE OR COVERPER STANDARD DRAWING 406 AND 407. FRAMEAND COVER PER STANDARD DRAWING 610 ISREQUIRED IF INSTALLATION IS NOT IN PAVEDAREA OR IS NOT TO FUNCTION AS CATCH BASIN.

6" MIN

24" M

IN24

" MIN

SECTION

PLAN

EMERGENCYOVER FLOW

6

OPEN BOTTOM ORRESTRICTOR PLATESEE NOTE 5

RESTRICTORPLATEWITHORIFICESEENOTE 5

4

3

2

FLOWRESTRICTOR


BYPASSFLOW

BYPASSFLOW


24"

MIN

TYP

INLET

FLOW

6" MIN

03/13/2017

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BYPASS STRUCTURETYPE B

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PM

SECTION

1. CAP OR PLATE WITH 1" DIAMETER VENT HOLE(INSTALL SEE STANDARD DRAWING 415) FORRESTRICTOR STANDPIPE WITHOUT SECONDARYOVERFLOW ORIFICE.

2. RESTRICTOR STANDPIPE WITHOUT ANYPRIMARY OR SECONDARY ORIFICES AND WITHFLOATABLE MATERIAL BAFFLE. INSTALLATIONSEE STANDARD DRAWING 415.

3. RUNOFF TREATMENT DESIGN STORMWATERSURFACE ELEVATION, PER PLANS.

4. FOR LIFT GATE ASSEMBLY AND ALUMINUM RODLIFT HANDLE ASSEMBLY SEE STANDARDDRAWING 416.

5. WATER QUALITY OUTFLOW PIPE SIZED TOCONVEY THE WATER QUALITY FLOW RATE ATTHE RUNOFF TREATMENT DESIGN WATERSURFACE ELEVATION.

6. THE RUNOFF TREATMENT DESIGN WATERSURFACE ELEVATION SHALL BE A MINIMUM OF2X THE PIPE DIAMETER ABOVE THE PIPE INVERT.

7. INLET PIPE MAY BE AT OR BELOW THE RUNOFFTREATMENT DESIGN WATER SURFACEELEVATION, BUT BACKWATER EFFECTS ON THEUPSTREAM SYSTEM MUST BE ACCOUNTED FOR.


9. INSTALL LOCKING FRAME AND GRATE ORCOVER PER STANDARD DRAWING 406 AND 407.FRAME AND COVER PER STANDARD DRAWING610 IS REQUIRED IF INSTALLATION IS NOT INPAVED AREA OR IS NOT TO FUNCTION AS CATCHBASIN.

NOTES

CAP WITH 1"VENT HOLE

FLOATABLE MATERIALBAFFLE

24" M

IN24

" MIN

PLAN

2

3

4

1

6" MIN

24"

MIN

STIFFENER RIB

BAFFLE

STANDPIPE

FLOATABLE MATERIAL BAFFLEISOMETRIC

RUNOFFTREATMENTFACILITYFLOW BYPASS

FLOW

INLET

FLOW

BYPASSFLOW


6" M

IN

03/13/2017

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BYPASS STRUCTURETYPE C

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NOTESDESIGN:1. SEE THE RAIN GARDEN HANDBOOK FOR WESTERN

WASHINGTON FOR DESIGN AND PLANTINGINSTRUCTIONS. NATIVE PLANTS ARE PREFERRED,BECAUSE NON-NATIVE AND INVASIVE SPECIESCAN MOVE DOWNSTREAM AND DAMAGEHABITAT. IF NON-NATIVES ARE CHOSEN, BE SURETHAT THEY WILL NOT DAMAGE DOWNSTREAMHABITAT.

2. RAIN GARDENS MAY BE USED TO MEETSTORMWATER MINIMUM REQUIREMENT #5 FORSITES WHICH ADD OR REPLACE LESS THAN 5000 SFOF NEW OR REPLACED HARD SURFACE.

3. PROVIDE RAIN GARDEN INFORMATIVE SIGNS FORRAIN GARDEN ASSOCIATED WITH NEWCONSTRUCTION. SIGNS ARE AVAILABLE FROMPERMIT SERVICES.

4. MAINTENANCE AGREEMENTS ARE REQUIRED FORRAIN GARDEN INSTALLATION USED TO MEETSTORMWATER MINIMUM REQUIREMENTS.

INFILTRATION RAIN GARDEN

CONSTRUCTION:1. BUILD AND VEGETATE RAIN GARDEN AS EARLY AS

POSSIBLE TO ESTABLISH PLANTINGS BEFOREDIRECTING STORMWATER RUNOFF TO IT.

2. INFILTRATION AREAS (THE AREA OF THE RAINGARDEN AS DEFINED BY THE TOP ELEVATION OFTHE FACILITY) SHALL BE FENCED OFF FROM THEFIRST DAY OF EARTH MOVING UNTIL PROJECTCOMPLETION TO PREVENT COMPACTION OF THESUBGRADE, DIRT TRACKING ONTO ANY LAYER OFTHE FACILITY AND STOCKPILING OF CONSTRUCTIONMATERIALS THAT MAY CLOG THE SURFACE.

3. DURING EXCAVATION OF NATIVE SOILS TO THEBOTTOM OF THE FACILITY, RAINFALL MAY CAUSEFINES TO CLOG THE SURFACE OF THE FACILITY. IFTHE NATIVE SOIL HAS BEEN EXPOSED TO RAINFALL,HAND RAKE THE SURFACE TO A DEPTH OF 3" TORESTORE INFILTRATION CAPACITY.

4. DURING AREA DRAIN INSTALLATION, DISTURBNATIVE SOILS AS LITTLE AS POSSIBLE.

3" DEPTH 3/4" DRAIN ROCK, OPTIONAL

EXISTING GRADE

COMPACTED NATIVE SUBGRADE

12"-24" AMENDEDPLANTING SOIL

EXCAVATE AT STABLESLOPE ANGLE FOR NATIVE SOIL

BERM AS NEEDED

AREA DRAIN WITH BEEHIVE GRATE.NOT REQUIRED IF SURFACE OVERFLOWROUTE IS PROVIDED

MIN SUMP DEPTH

COMPACTED NATIVE MATERIAL

WIDTH (5' MIN)

PLANTINGS

6"-12" TYPICALPONDING DEPTH

NON-PERFORATED OVERFLOWPIPE DIRECTED TO APPROVED DISPOSAL POINT

1-2" MULCH

18"

BEEHIVE RIM

3H:1V SIDE SLOPETYPICAL

RAINGARDEN

RAINGARDENINFORMATIVESIGN

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RAIN GARDEN WITHOVERFLOW

18"

MIN SUMP DEPTH

SEPE

RATI

ON

/FIL

TER

ROCK

LAY

ER 18' M

IN

3"

WIDTH (5' MIN)

6" MIN

6" MIN

NOTESDESIGN:1. SEE THE RAIN GARDEN HANDBOOK FOR WESTERN

WASHINGTON FOR DESIGN AND PLANTINGINSTRUCTIONS. NATIVE PLANTS ARE PREFERRED,BECAUSE NON-NATIVE AND INVASIVE SPECIES CANMOVE DOWNSTREAM AND DAMAGE HABITAT. IFNON-NATIVES ARE CHOSEN, BE SURE THAT THEY WILLNOT DAMAGE DOWNSTREAM HABITAT.

2. RAIN GARDENS MAY BE USED TO MEETSTORMWATER MINIMUM REQUIREMENT #5 FORSITES WHICH ADD OR REPLACE LESS THAN 5000 SF OFNEW OR REPLACED HARD SURFACE.

3. PROVIDE RAIN GARDEN INFORMATIVE SIGNS FORRAIN GARDEN ASSOCIATED WITH NEWCONSTRUCTION. SIGNS ARE AVAILABLE FROM PERMITSERVICES.

4. MAINTENANCE AGREEMENTS ARE REQUIRED FORRAIN GARDEN INSTALLATION USED TO MEETSTORMWATER MINIMUM REQUIREMENTS.

CONSTRUCTION:1. BUILD AND VEGETATE RAIN GARDEN AS EARLY AS

POSSIBLE TO ESTABLISH PLANTINGS BEFOREDIRECTING STORMWATER RUNOFF TO IT.

2. INFILTRATION AREAS (THE AREA OF THE RAINGARDEN AS DEFINED BY THE TOP ELEVATION OF THEFACILITY) SHALL BE FENCED OFF FROM THE FIRST DAYOF EARTH MOVING UNTIL PROJECT COMPLETION TOPREVENT COMPACTION OF THE SUBGRADE, DIRTTRACKING ONTO ANY LAYER OF THE FACILITY ANDSTOCKPILING OF CONSTRUCTION MATERIALS THATMAY CLOG THE SURFACE.

3. DURING EXCAVATION OF NATIVE SOILS TO THEBOTTOM OF THE FACILITY, RAINFALL MAY CAUSEFINES TO CLOG THE SURFACE OF THE FACILITY. IF THENATIVE SOIL HAS BEEN EXPOSED TO RAINFALL, HANDRAKE THE SURFACE TO A DEPTH OF 3" TO RESTOREINFILTRATION CAPACITY.

4. DURING AREA DRAIN INSTALLATION, DISTURB NATIVESOILS AS LITTLE AS POSSIBLE.

EXCAVATE AT STABLESLOPE ANGLE FORNATIVE SOIL

1/2"-3/8" WASHED GRAVEL

1-2" MULCH

EXISTING GRADE

COMPACTED NATIVE FILL

BERM AS NEEDED

PLANTINGS

CLEAN OUT SET CAP HIGHERTHAN MAX WATER LEVEL

6"-12" TYPICALPONDING DEPTH

3H:1V SIDE SLOPE MAX TYPICAL

AMENDED PLANTING SOIL

AREA DRAIN WITH BEEHIVE GRATE

NON-PERFORATED OVERFLOWPIPE DIRECTED TO APPROVED DISPOSAL POINT

3" DEPTH 3/4" DRAIN ROCK, OPTCOMPACTED NATIVE SUBGRADE

CLEAN COARSE SAND(WSDOT STD SPEC 9-03.13)

UNIFORMLY GRADEDSTORAGE ROCK(WSDOT STD SPEC 9-03.12(5)OR EQUIVALENT)

UNDISTURBED NATIVESUBGRADE

6" PERFORATED PVC PIPE,S=0.0000

RAINGARDEN

RAINGARDENINFORMATIVESIGN

RAINGARDEN

3"

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RAIN GARDEN WITHUNDERDRAIN

NOTES1. FOR ALL PONDS WITHOUT AN INTERNAL BERM ONLY

A SINGLE ACCESS RAMP IS REQUIRED. EXTENDACCESS ROAD MATERIAL ALONG THE ENTIRE LENGTHOF THE POND BOTTOM.

2. SEE TEXT FOR ROAD SURFACING MATERIALREQUIREMENTS.

3. REFER TO THE CITY OF EVERETT STORMWATERMANAGEMENT MANUAL FOR ADDITIONAL DESIGNREQUIREMENTS.

PLAN VIEW

INLET PIPE & CATCH BASIN

BERM OR BAFFLE AT WQ DESIGN WS ORSUBMERGED 1' BELOW WQ DESIGN WS.EXTEND BERM ACROSS ENTIRE WETPOOL.

SECOND WETPOOL CELL

CONTROL MANHOLE & OUTLET PIPE

ACCESS ROAD TO OUTLETSTRUCTURE

ACCESS ROAD TO INLETSTRUCTURE

OUTLET EROSION CONTROL ENERGY DISSIPATIONPER DETENTION FACILITY REQUIREMENTS

EMERGENCY SPILLWAY PERDETENTION FACILITY REQUIREMENTS

ACCESS RAMP TOBOTTOM OF FIRST

WETPOOL CELL (7H:1V)

FIRST WETPOOL CELL

BERM TOP WIDTH 5'MIN. (IF EARTHEN)

WQ DESIGN WSDETENTION WS

OVERFLOW WS

EMERGENCY OVERFLOW WS

EXTEND ACCESS ROAD SURFACINGACROSS BOTTOM OF POND

12' WIDE PERIMETER ACCESS ROAD WHENREQUIRED

ACCESS RAMP TO BOTTOM OF SECOND CELL(EXCEPT WETLAND CELLS). NOT REQUIRED IFACCESS IS PROVIDED OVER BERM

ACCESS RAMP OVER BERM (OPTIONAL) (7H:1V)MAINTAIN 5' FLAT SECTION AT BERM TOPELEVATION

15' M

IN

15' MIN

WETPOOLWIDTH

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TYPICAL DETENTIONAND/OR WETPOND

NOTES

1. PERMEABLE PAVEMENT WITHIN CITY RIGHT-OF-WAYREQUIRES APPROVAL BY THE CITY ENGINEER WHEN PLACEDBENEATH A TRAVELED WAY. THESE GUIDELINES PROVIDE AMINIMUM DEPTH FOR THE HYDROLOGIC PERFORMANCE OFTHE PERMEABLE PAVEMENT. THE STRUCTURAL CAPACITY OFPAVEMENT SECTIONS WHEN SUBJECT TO VEHICULAR LOADSDEPENDS ON SEVERAL FACTORS AND MUST BE DESIGNED BYA LICENSED PROFESSIONAL ENGINEER.

2. LONGITUDINAL SLOPE, 0 TO 5% MAX. FOR PERMEABLEASPHALT, 8% MAX. FOR PERMEABLE CONCRETE.

3. USE CHECK DAM OR OTHER METHODS TO MAXIMIZEPONDING IN THE SUBSURFACE FOR LONGITUDINAL SLOPESEXCEEDING 2%. SEE STANDARD DRAWING 431.

4. LEVELING COURSE MATERIALS: 1.5" TO U.S. NO. 8UNIFORMLY GRADED, CRUSHED (ANGULAR), THOROUGHLYWASHED STONE.

5. GEOTEXTILE SHALL BE PROVIDED BETWEEN RUNOFFTREATMENT LAYER OR NATIVE SOIL AND PERMEABLEBALLAST WHEN RECOMMENDED BY GEOTECHNICALPROFESSIONAL OR PAVEMENT DESIGNER. GEOTEXTILE SHALLBE PROVIDED WHEN FINES IN NATIVE SUBGRADE EXCEED 7%ON THE #200 SIEVE. GEOTEXTILE SHALL BE PLACED BETWEENPERMEABLE BALLAST AND TREATMENT LAYER IF ATREATMENT LAYER IS USED. GEOTEXTILE SHALL BEGEOTEXTILE FOR SEPARATION PER WSDOT/APWASTANDARD SPECIFICATION 9-33.2, NON WOVEN, TABLE 3.

6. PERMEABLE CONCRETE MUST BE INSTALLED BY A CERTIFIEDPERMEABLE CONCRETE INSTALLER. PERMEABLE ASPHALTMUST BE INSTALLED BY AN EXPERIENCED PERMEABLEASPHALT INSTALLER.

7. RUNOFF TREATMENT LAYER SHALL BE REQUIRED FORPAVEMENT WHICH IS SUBJECT TO VEHICULAR TRAFFIC OROTHER POLLUTANTS WHERE NATIVE SOILS DO NOT MEETTHE REQUIREMENTS FOR TREATMENT. SEE THESTORMWATER MANAGEMENT MANUAL.

8. SUBGRADE SHALL BE COMPACTED TO A FIRM AND UN-YIELDING CONDITION IN ACCORDANCE WITH THE PROJECTPAVEMENT DESIGN. DO NOT OVER COMPACT SUBGRADE.HEAVY TRUCK AND CONSTRUCTION EQUIPMENT SHALL BEPROHIBITED FROM DRIVING ON THE SUBGRADE THROUGHOUT CONSTRUCTION.

PERMEABLE ASPHALT (4"MIN) OR CONCRETE(6"MIN) WEARING COURSE (SEE NOTES 1 AND 6)

RESERVOIR COURSE - 6"MIN PERMEABLEBALLAST PER WSDOT/APW A STANDARDSPECIFICATIONS 9-03.9(2)

LEVELING COURSE, OPTIONAL(SEE NOTE 4)

NON-WOVEN GEOTEXTILE (IF REQUIRED)(SEE NOTE 5)

RUNOFF TREATMENT LAYER (IF REQUIRED)(SEE NOTE 7)

NATIVE SUBGRADE (SEE NOTE 8)

4"M

IN1"-2"

6"-3

6"6"

MIN

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PERMEABLE ASPHALT ORCONCRETE PAVEMENT SECTION

NOTES1. CHECK DAM OR INTERCEPTOR REQUIRED FOR

LONGITUDINAL SLOPES > 2%.

2. SPACE CHECK DAMS BASED ON SLOPE TO ACHIEVEDESIGN AVERAGE PONDING DEPTH BEFOREOVERTOPPING DAM.

3. CALCULATE STORAGE VOLUME BETWEEN CHECKDAMS BASED ON CHECK DAM HEIGHT AND SLOPEFOR MODELING.

4. CHECK DAMS SHALL EXTEND THE FULL WIDTH OF THEPERMEABLE PAVEMENT INSTALLATION.

5. UNDERDRAIN PIPE SHALL BE PROVIDED AT THELOWEST END OF ANY PERMEABLE PAVEMENTINSTALLATION WITHIN THE CITY ROW AND ONPRIVATE INSTALLATIONS AT THE TRANSITION TO APUBLICLY MAINTAINED PAVED SURFACE.

6. SEE CITY STANDARDS FOR CONTROLLED DENSITY FILLMIX REQUIREMENTS DCSS SECTION 3-20.1.

7. THE TOP OF THE DOWN SLOPE FILL DAM MUST BELEVEL WITH OR HIGHER THAN THE BOTTOM OF THEUP SLOPE FILL DAM AT THE NATIVE MATERIAL LINE.

CONVENTIONAL PAVEMENT

END OF PERMEABLE PAVEMENT

8" PVC UNDERDRAIN PIPE CONNECT TO CATCH BASINOR DAYLIGHT (SEE NOTE 5)

PERMEABLE PAVEMENTPER STANDARDDRAWING 430

1' WIDE CONTROLLED DENSITY FILL DAM. EXTEND DAMINTO NATIVE MATERIAL 1' ON EACH SIDE AS DIRECTEDBY THE ENGINEER TYP (SEE NOTE 7)

RESERVOIR COURSE

1'

GEOTEXTILE ON BOTTOM ANDSIDES (IF REQUIRED) SEE NOTE 5

GRAVEL BASE

IMPERMEABLE LINER

1" M

IN

1" M

IN

3' MAX

6" MIN

WATER STORAGE WITHINCELL (SEE NOTES)

ALTERNATE CHECK DAM

12" MIN

PERMEABLE BALLAST

PERMEABLE PAVEMENT

GEOTEXTILE (IF REQUIRED)

NATIVE SOIL COMPACT TO95% MAX STANDARD PROCTOR DENSITY

COMPACT SUBGRADE PERPAVEMENT DESIGNREQUIREMENTS

1" MIN FROMBOTTOM OF PAVEMENT

6" DAMEMBEDMENT INTOSUBGRADE

TREATMENT LAYER(IF REQUIRED)

6" M

IN

TREATMENT LAYER(IF REQUIRED)

1

1

CITY ENGINEER'S APPROVAL REQUIRED IN RIGHT OF WAY

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PUBLIC WORKS

DEPARTMENT

PERMEABLE PAVEMENTON SLOPES

NOTES1. MODIFY INLET TO BIORETENTION PLANTER AS

NEEDED TO PREVENT EROSION. THE STREAMBEDCOBBLES ARE OPTIONAL IF NOT REQUIRED FORSTABILIZATION AND ENERGY DISSAPATION.

10" MIN16" MAX

2%

2%

5%

2%

2%

5%2%

18"

18"MIN

5%

1"

2%

SECTION B-B

SECTION A-A

10"MIN5%

1"

6"0%

ROAD PAVEMENT

CONCRETE CURBAND GUTTER

PROPOSEDBIORETENTION

STREAMBED COBBLES PERSTANDARD SPECIFICATIONS9-03.11(2) (2"-4") SEE NOTE

MODIFIED CONCRETECURB AND GUTTER

18"

TOP OF CURB

GUTTER LINE

STREET SLOPETYPICAL

SWALE/RAIN GARDENBANK (SEE NOTES)

SWALE/RAINGARDEN BOTTOM

ROAD PAVEMENT

MODIFIED CONCRETECURB AND GUTTER

TYPICAL GUTTER ELEVATION

FLOW TO BIORETENTION6" 6"

45°

A

A

B

B

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CURB CUT OPENING FORBIORETENTION

6' MIN

NATIVE SOIL ORCOMPACTEDBACKFILL

MIN 1' DEPTH QUARRY SPALLS

DEPTH OF FLOWPER CALCULATIONS

DESIGN WATER SURFACE

3H : 1V MAX

QUARRY SPALLS

DISCHARGE TO STABILIZEDCONVEYANCE, OUTLET,OR LEVEL SPREADER

1' MINQUARRY SPALLS

4'MIN 6" MIN

FREE BOARD

POND CROSS SECTION

31

6" F

REE

BOAR

DSECTION A-A

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EMERGENCY OVERFLOW FOR POND

A

A

PLAN VIEW

SECTION A-A

24"

15° TYPICALSEE NOTE 1

AA

3/4" DIAMETER SMOOTH BARSEQUALLY SPACED (4" O.C. MAX)

4 HOOK CLAMPS EVENLY PLACED.SEE DETAIL BELOW

PROVIDE MAINTENANCE ACCESS BY WELDING 4CROSSBARS TO 4 VERTICAL BARS AS SHOWN.HINGE UPPER ENDS WITH FLANGES/BOLTS ANDPROVIDE LOCKING MECHANISM (PADLOCK) ONLOWER END. LOCATE STEPS DIRECTLY BELOW.

LOWER STEEL BAND 3/4"x4" WIDE FORMED TOFIT IN GROOVE OF CB RISER.

3/4" DIAMETER SMOOTH ROUND BARS WELDEDEQUALLY SPACED. BARS SHALL BE WELDED TOUPPER AND LOWER BANDS.(24 BARS EVENLY SPACED, SEE NOTE 1)

STANDARD GALVANIZED STEPS OR LADDER.

TYPE 2 CATCH BASIN

UPPER STEEL BAND3/4"x4" WIDE

CATCH BASINRISER

SMOOTH VERTICALBARS

HOOK CLAMPANCHORED TOCATCH BASINRISER

45°

HOOK CLAMP DETAIL

SEE NOTE 1

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TYPE 2 DEBRIS CAGE

NOTES1. DIMENSIONS ARE FOR ILLUSTRATION ON 54"

DIAMETER CATCH BASIN. FOR DIFFERENT DIAMETERCATCH BASINS ADJUST TO MAINTAIN 45 DEGREEANGLE ON "VERTICAL BARS AND 7" O.C. MAXIMUMSPACING OF BARS AROUND LOWER STEEL BAND.

2. METAL PARTS MUST BE CORROSION RESISTANT;STEEL BARS MUST BE GALVANIZED.

3. THIS DEBRIS BARRIER IS ALSO RECOMMENDED FORUSE ON THE INLET TO ROADWAY CROSS-CULVERTSWITH HIGH POTENTIAL FOR DEBRIS COLLECTION(EXCEPT ON TYPE 2 STREAMS).

3/4" DIA SMOOTH BARS WITH ENDSWELDED TO BAR FRAME

MAYBE REMOVED

1' MIN

BEVELED PIPEEND SECTIONPIPE COUPLING

3"-5" FOR 18" DIA5"-8" FOR 24" DIA7"-9" FOR 30" DIA AND GREATER

3/4" DIA BAR-FRAME

4" O.C. MAXBAR SPACING

31

2"x5" ANCHOR STRIPS WELDED TO 3/4" DIABAR-FRAME (4 PLACES) SPACED UNIFORMLY,FASTEN WITH 1/2" GALVANIZED ORNON-CORROSIVE BOLTS AND NUTS

SIDE VIEW

PLAN VIEW

END VIEW

FLOW

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PIPE END DEBRIS BARRIER

NOTES1. CMP END SECTION SHOWN. MAY USE CPEP SMOOTH

INTERIOR.

2. ALL STEEL PARTS MUST BE GALVANIZED ANDASPHALT COATED (TREATMENT 1 OR BETTER).

2'MIN.

NOTES1. USE TRENCH DAM FOR UTILITIES BENEATH

PERMEABLE PAVEMENT, AT THE END OFINFILTRATION TRENCHES OR PERFORATED STUBOUTS,OR OTHER LOCATIONS WHERE THERE IS A CONCERNTHAT WATER MAY BE CONVEYED DOWN THE TRENCHWITHIN PIPE BEDDING OR BACKFILL.

2. ALTERNATE TRENCH DAM CONFIGURATIONS ORMETHODS WHICH ACHIEVE THE SAME GOAL WILL BEACCEPTED ON A CASE BY CASE BASIS.

PERMEABLE PAVEMENT

END OF PERMEABLE PAVEMENT ORPROPERTY LINE

UTILITY PIPE

TRENCH BOTTOMUNDISTURBED NATIVE SOIL

PERMEABLE MATERIAL-PIPE ZONEBEDDING, INFILTRATION TRENCH

EXTEND TRENCH DAM 0.5'MIN INTO UNDISTURBEDNATIVE SOIL

EXTEND TRENCH DAM 0.5' MIN INTONATIVE BACKFILL OR LOWERPERMEABILITY BACKFILL. IF BACKFILLMATERIAL IS PERMEABLE, EXTEND TRENCHDAM TO BASE OF PAVEMENT SECTION

TRENCH DAM,COMPACTED NATIVE SOILOR CDF

FINISH GRADE

EXTEND TRENCH DAM 0.5' MIN.BEYOND LIMITS OF TRENCH ONALL SIDES

LIMITS OFTRENCHBEYOND

SECTION A-A

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TRENCH DAM

AA

1' -0"

NOTES1. EXTEND BARRIER 2' BELOW PAVEMENT.

2. COMPACT IN 6" MAX. LIFTS. COMPACT WITH EACH LIFT.

3. TILL SOIL MUST MEET THE FOLLOWING GRADATION:

SIEVE SIZE PERCENT PASSING6-INCH 1004-INCH 90 MIN#4 70-100#200 20 MIN

COMPACTED TILL BARRIER,SEE NOTE 1, 2 AND 3

2' -0

"TOP OFFREEBOARD

BIORETENTION OR RAIN GARDENNOT ADJACENT TO A FLUSH CURB

1' -0"

COMPACTED TILL BARRIER,SEE NOTE 1, 2 AND 3

2' -0

"

TOP OFFREEBOARD

COMPOST/MULCH

BIORETENTIONSOIL MIX (BSM)

SIDEWALK DRIVEWAYOR DRIVING SURFACECONCRETE CURB

STREET

BIORETENTION OR RAIN GARDENADJACENT TO CURB

COMPOST/MULCH

BIORETENTIONSOIL MIX (BSM)

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BIORETENTION OR RAINGARDEN ADJACENT TO

RIGHT-OF-WAY

NOTES1. COMPACT IN 6" MAX. LIFTS. COMPACT WITH EACH

LIFT.

2. TILL SOIL MUST MEET THE FOLLOWING GRADATION:

SIEVE SIZE PERCENT PASSING6-INCH 1004-INCH 90 MIN#4 70-100#200 20 MIN

18"

EXTEND BARRIER MIN 12"BELOW LOWEST POINT IN

INFILTRATION TRENCH

R/WDOWNSPOUTINFILTRATION TRENCH

COMPACTED TILL BARRIER,SEE NOTE 1 AND 2

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DOWNSPOUT INFILTRATIONTRENCH ADJACENT TO

RIGHT-OF-WAY

400 storm and surface water - everett, wa

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