standard details 400 storm drainage

STANDARD DETAILS 400

STORM DRAINAGE

410 ...... Yard Drain 411 ...... Reserved 412 ...... Catch Basin Type 1 413 ...... Catch Basin Type 1L 414 ...... Catch Basin Type 2

415 ...... Drop Inlet Type 1 416 ...... Drop Inlet Type 2 417 ...... Reserved 418 ...... Reserved 419 ...... Reserved 420 ...... Catch Basin Installation 421 ...... Thru-Curb Inlet Frame and Grate with Vertical

Curb Installation 422 ...... Frame and Grate (20”X24”)

422A .... Frame and Grate (18”X24”) 423 ...... Solid Cover Rectangle 424 ...... Vaned-Grate Rectangle 425 ...... Open Curb Face Frame and Grate Detail

426 ...... Storm Drain Locking Manhole Frame and Cover

427 ...... Frame and Cover Adjustment 428 ...... Reserved 429 ...... Reserved 430 ...... Floatable Material Separator 6” or 8” Pipe 431 ...... Floatable Material Separator 12” and Larger

432 ...... Reserved 433 ...... Reserved 434 ...... Reserved 435 ...... Oil Water Separator API Vault 436 ...... Oil Water Separator Coalescing Plate-Sample

437 ...... Oil Water Separator 438 ...... Reserved

439 ...... Control Structure 54” Diameter 440 ...... Control Structure 72” Dia. or Larger 441 ...... Restrictor Riser 442 ...... Reserved 443 ...... Secondary Orifice Detail 444 ...... Shear Gate

445 ...... Detention Pond with Biofiltration Swale 446 ...... Reserved 447 ...... Reserved 448 ...... Reserved 449 ...... Reserved 450 ...... Reserved 451 ...... Reserved

452 ...... Reserved

453 ...... Reserved 454 ...... Reserved 455 ...... Reserved 456 ...... Detention Pond Typical Sections 457 ...... Reserved 458 ...... Reserved

459 ...... Reserved 460 ...... Swale Biofiltration Typical Section 461 ...... Pipe Outfall Quarry Spalls 462 ...... Pipe Outfall Gabion Type 463 ...... Pipe Outfall Mortared Quarry Spall Mat

464 ...... French Drain Under Road 465 ...... Pipe and Section Trash Rack 466 ...... Cone Trash Rack 467 ...... Pipe Anchors 468 ...... Flow Splitter Type A 469 ...... Flow Splitter Type B 470 ...... Paved Areas and Area within the Right-of-Way

471 ...... Unpaved Areas Outside of the Right-of-Way 472 ...... Reserved

473 ...... Reserved 474 ...... Reserved 475 ...... Reserved 476 ...... Reserved

477 ...... Reserved 478 ...... Reserved 479 ...... Reserved 480 ...... Steep Slope Sign Installation 481 ...... Wetland Sign Installation 482 ...... Stream Sign Installation 483 ...... Reserved

484 ...... Reserved 485 ...... Reserved 486 ...... Reserved 487 ...... Reserved 488 ...... Reserved

489 ...... Reserved 490 ...... Reserved

491 ...... Reserved 492 ...... Reserved 493 ...... Reserved 494 ...... Reserved 495 ...... Outfall to Ditch Layout Small Projects 496 ...... Outfall to Ditch Detail Small Projects

497 ...... Footing Drain 498 ...... Storm Pipe Cleanout 499 ...... Reserved T400..... Model Site Plan 3 Acres and Smaller T401..... Sediment Trap Earth Berm T402..... Riser Piping Element T403..... Sediment Pond with Riser Element

T404..... Stabilized Construction Entrance

T405..... Interceptor Ditch with Rock Check Dams T406..... Pipe Slope Drain T407..... Reserved T408..... Storm Inlet Protection T409..... Silt Fence

http://www.ci.bothell.wa.us/Site/Content/Public%20Works/Bothell%20Standards/400_Details_Nov2013_All.pdf#page=1






















































PUBLIC WORKS DEPARTMENT

City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

YARD DRAIN 410

STUB OUT FOR ROOFAND FOOTING DRAINCONNECTIONS (TYP.)

STREET CATCH BASIN

YARD DRAIN W/SOLID COVER

YARD DRAIN (TYP.)

SIDEWALK AND CURB

2

1

6

5

4YARD DRAINS TO BE CONSTRUCTED FROM CONCRETEPIPE, IN ACCORDANCE WITH ASTM C 14 UNLESSOTHERWISE SHOWN ON THE PLANS OR NOTED INTHE SPECIFICATIONS.

CUTOUT HOLE SIZE EQUAL TO OUTLET PIPE OUTSIDEDIAMETER PLUS YARD DRAIN WALL THICKNESS.

CONNECTION TO OUTLET PIPE TO BE MORTARED ANDMADE FLUSH WITH INSIDE OF THE YARD DRAIN WALL.

CAST IRON BELL GRATE. FITS INTO BELL RECESSAND EXTENDS FLUSH WITH FACE OF BELL. THE GRATE SHALL HAVE SLOTS (HOLES) THAT CONSITUTE50 PERCENT OPEN AREA FOR DRAINAGE. INLET BELLSURFACE SHALL BE FINISHED TO ASSURE NON-ROCKING FIT WITH ANY COVER.

CONCRETE 4 IN. MIN.

12" OR 18".6

5

4

3

2

1

DETAIL NOTES:

NOTE:SPECIAL CAST YARD DRAIN MAY BE REQUIRED FORMULTIPLE PIPE CONNECTIONS.

10' PRIVATESD EASEMENT

SD EASEMENT10' PRIVATE

6" SD

10' SD STUB (TYP.)

7 CONNECT TO CITY OWNED MAINTAINED SD SYSTEM INTHE STREET.

8 UP TO 5 CONNECTIONS PER SERVICE LINE.

7

8

3

EASEMENT LINE

R.O.W.

LOT LINE(TYP.)


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

CATCH BASINTYPE 1 412

TO CONFORM TO WSDOT STANDARD PLAN B-5.20-01

FRAME AND GRATE,PER STD DETAILS, 422 OR 425

OR FRAME W/SOLID COVER.

RECTANGULAR ADJUSTMENT SECTION

SEE NOTE #7

#3 BAR EACH CORNER

#3 BAR EACH SIDE

#3 BAR EACH WAY

NOTES:

PRECAST BASE SECTION

CATCH BASIN AND ALL REINFORCING STEEL

1. AS AN ACCEPTABLE ALTERNATE TO REBAR, WIRE MESH HAVINGA MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BEUSED. WIRE MESH SHALL NOT BE PLACED IN KNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 20".KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 21/2" MAXIMUM.

3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE PIPEINVERT SHALL BE 5'.

4. FRAME AND GRATE MAY BE INSTALLED WITH FLANGE DOWN ORCAST INTO ADJUSTMENT SECTION.

5. THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOORAND THE WALLS MAY BE SLOPED AT A RATE OF 1:24 OR STEEPER.

6. OPENING SHALL BE MEASURED AT THE TOP OF THE PRECASTBASE UNIT.

7. THE 6" ADJUSTMENT SECTION SHALL HAVE ONE #3 BARCENTERED. THE 12" ADJUSTMENT SECTION SHALL HAVE TWO #3BARS EQUALY SPACED.

8. GROUT ALL JOINTS INSIDE AND OUTSIDE.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

CATCH BASINTYPE 1L 413

TO CONFORM TO WSDOT STANDARD PLAN B-5.40-01

FRAME AND GRATE,OR FRAME &

SOLID COVER.

6" OR 12"

RECTANGULAR ADJUSTMENT SECTION

ONE #3 BARHOOP FOR 6"

HOOPS FOR 12"TWO #3 BAR

#3 BAR EACH CORNER

#3 BAR EACH SIDE

#3 BAR EACH WAY

NOTES:

TW0 #3 BAR HOOPS

REDUCING SECTION

PRECAST BASE SECTIONCATCH BASIN AND ALL REINFORCING STEEL

1. AS AN ACCEPTABLE ALTERNATE TO REBAR, WIRE MESH HAVINGA MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BEUSED. WIRE MESH SHALL NOT BE PLACED IN KNOCKOUTS.

2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 20".KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 21/2" MAXIMUM.

3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE PIPEINVERT SHALL BE 5'.

4. FRAME AND GRATE MAY BE INSTALLED WITHFLANGE DOWN OR CAST INTO ADJUSTMENTSECTION.

5. THE PRECAST BASE SECTION MAY HAVEA ROUNDED FLOOR AND THE WALLS MAYBE SLOPED AT A RATE OF 1:24 OR STEEPER.

6. OPENING SHALL BE MEASURED AT THE TOP OF THE PRECASTBASE UNIT.

7. THE 6" ADJUSTMENT SECTION SHALL HAVE ONE #3 BARCENTERED. THE 12" ADJUSTMENT SECTION SHALL HAVE TWO #3BAR EQUALY SPACED.



City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

CATCH BASINTYPE 2 414

16" MAX4" MIN

48", 54", 60",

72", OR 96"

STEPS SEESTD DETAIL 643

1" MIN2 1/2" MAX

12" MAX

12" (TYP)

MORTARFILLET

12"

6"

12"6"

"0" RING

REINFORCINGSTEEL

GRAVEL BACKFILL FORPIPE ZONE BEDDING

SEPARATE CAST INPLACE BASE

PRECAST BASE WITHINTEGRAL RISER

6"

MINIMUMDISTANCEBETWEEN

KNOCKOUTS

THICKNESSBASEBASE

THICKNESS SIZETHICKNESSWALL

DIA

CATCH BASIN DIMENSION TABLE

48" 4" 6" 36" 8"

INTEGRAL BASE SEPARATE BASE

BASE REINFORCING STEELIN /FT IN EACH DIRECTION

0.15 0.23

2

54" 4 1/2" 8" 42" 8" 0.19 0.19

60" 5" 8" 48" 8" 0.25 0.25

72" 6" 8" 60" 12" 0.24 0.35

96" 8" 12" 84" 12" 0.29 0.39

SEPARATE PRECAST BASE

NOTES:

CATCH BASIN FRAME AND GRATEOR MANHOLE RING AND COVER RECTANGULAR ADJUSTMENT SECTION

OR CIRCULAR ADJUSTMENT SECTION

FLATSLABTOP

MORTAR (TYP)

1. NO STEPS ARE REQUIREDWHEN HEIGHT IS 4' OR LESS.

2. THE BOTTOM OF THEPRECAST CATCH BASIN MAYBE ROUNDED.

3. FRAME AND GRATE MAYBE INSTALLED WITH FLANGEDOWN OR CAST INTOADJUSTMENT SECTION.

4. KNOCKOUTS SHALL HAVEA WALL THICKNESS OF 2"MINIMUM TO 2 1/2"MAXIMUM.

5. GROUT ALL JOINTS INSIDEAND OUTSIDE.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

DROP INLETTYPE 1 415

6" 12" 12" 6"

36"

4"

4"

2" TYP

ANGLES SHALL BE SET SO THAT EA. BEARING BAR ON THEGRATE SHALL HAVE FULL SEATING AT BOTH ENDS. THE

TOP OF INLET SHALL BE PLACED AT GROUND LEVEL TO

BEVEL OR ROUND EXPOSED CONCRETE EDGES 1/2".

PIPE MAY ENTER THROUGH THE KNOCKOUTS AT ANY

CAN BE CONTAINED WITHIN THE KNOCKOUT PROVIDED.

THE GRADE LINE OF THE LOWEST INLET PIPE SHALL ENTER

THE GRADE LINE OF THE OUTLET PIPE.

PRECAST INLET SHALL BE MARKED WITH MANUFACTURER'S

ACCESSIBLE LOCATION.

INSIDE WALL TAPER FOR FORM REMOVAL SHALL NOT RESULT

KNOCKOUT AREA.

AMOUNT, TYPE AND GRADE OF REINFORCING STEEL IS THE

THE MANUFACTURER IS RESPONSIBLE FOR THE STRUCTURE

ADDITION, STRUCTURES MAY BE REJECTED BECAUSE OF

FRACTURES OR CRACKS THAT EXTEND THROUGH THE

ANY CONTINUOUS CRACK HAVING A SURFACE WIDTH

GRATE SUPPORTS SHALL BE GALVANIZED AFTER FABRI-

HOT DIPPED 2-OZ ZINC/SQ FT (MIN).HOT-SPRAYED (PLASMA FLAME APPLIED) 6-MIL

THE STANDARD DROP INLET GRATES SHALL BE FURNISHED

3"

12"

(TYP)

1/4"1/4"

L 4" x 3" x 1/2" x 2'-11 1/4"1 1/2"

ELEVATIONGRATE SUPPORT-TWO REQ'D. PER GRATE

PLAN VIEW

PLAN VIEW

39"

END VIEW

SECTION A-ASECTION B-B

C DitchL

6"(MIN)

MATERIAL SPECIFICATIONS

PRECAST CONCRETECAST-IN-PLACE CONCRETEGRATE SUPPORT STEEL

CLASS BCLASS C

ASTM A36

82"

1' MIN.2' MIN.

101

DIKE INSTALLATIONFOR PREFERRED SLOPE

DITCHLANE

AA

NOTES:

FINISHED TOP OF CONC. SHALL BE EVEN W/ GRATE SURFACE.

PRESENT AN UNOBSTRUCTED DITCH OR MEDIAN SECTION.

REASONABLE ANGLE PROVIDED THE OUTSIDE OF THE PIPE

THE STRUCTURE AT AN ELEV. EQUAL TO OR HIGHER THAN

IDENTIFICATION INSIDE THE STRUCTURE IN SOME READILY

IN ANY WALL SECTION THINNER THAN 6" EXCEPT IN PIPE

RESPONSIBILITY OF THE MANUFACTURER.

UNTIL FINAL ACCEPTANCE IN PLACE WITH ALL REQUIREDKNOCKOUTS REMOVED. FINAL BRIDGE CONSTRUCTION IN

ANY OF THE FOLLOWING:

ENTIRE WALL FROM ANY OUTSIDE SURFACE TO THEKNOCKOUT OPENING.

OF 0.01" OR MORE AND EXTENDING A LENGTH OF12" OR MORE.

CATION BY ONE OF THE FOLLOWING METHODS:

(MIN) THICKNESS ZINC COATING.

AND INSTALLED AS INDICATED ON STD DETAIL 416.

A)

B)

A)B)

8.

9.

7.

6.

5.

4.

3.

2.

1.

10.

40" (NOM)

1"


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

DROP INLETTYPE 2 416

NOTES:

3'-10 3/4"

4"

TYP.1 3/8"TYP.

4 3/4"TYP.

2 OUTER BEARINGBARS -3 1/2"X3/8"

4 BEARING BARS 3 1/2" X 3/4"

CL Ditch

VARIABLE 1'-0" MAX.

SEE DETAIL A

GRATE

INVERT OFOUTLET PIPE

CLASS C CONCRETE

3"

1/4"

1 1/2"

4"L4"x3"x3/8"(2 REQ'D.)

1/2"x4"

5 1/2"x1/4"ANCHORS(6 REQ'D.)

1"

6" (TYP.)

GRATE

SITTINGBEAM

6 1/4" 6 1/4"

7"

DETAIL ASECTION C-C

11 SPACES @ 4"x3'-8"

CROSS BARS 3/8" ROUND OR

BAR OF EQUIVALENT AREA

(WEIGHT APPROX. 215 lbs.)GRATE B

11 SPACES @ 4"x3'-8"

3'-10 3/4"1 3/8"

BEARING BARS 3 1/2" X 3/8"

7"

A RECTANGULAR OR HEXAGONAL

(WEIGHT APPROX. 215 lbs.)GRATE B

CROSS BARS 3/8" ROUND ORA RECTANGULAR OR HEXAGONALBAR OF EQUIVALENT AREA

STUD OR

1. ANGLES SHALL BE SET SO THAT EACH BEARING BAR OFPREFABICATED GRATE SHALL HAVE FULL BEARING ON BOTH ENDS.THE FINISHED TOP OF CONCRETE SHALL BE EVEN WITH THE GRATESURFACE.

2. TOP OF INLET SHALL BE PLACED AT GROUND LEVEL TO PRESENTANUNOBSTRUCTED DITCH OR MEDIAN SECTION.

3. ALL EXPOSED CONCRETE SHALL BE FINISHED WITH A 1/2" INCHRADIUS.

4. THE GRADE LINE OF THE TOP INSIDE OF ANY PIPE SHALL ENTER ATA POINT NO LOWER THAN THE GRADE LINE OF THE TOP INSIDE OFTHE OUTLET PIPE.

5. CULVERT OR SEWER PIPES MAY BE SET AT ANY ANGLE TO THECENTERLINE OF THE HIGHWAY AND MAY ENTER THE INLET ON ANYSIDE AT ANY REASONABLE ANGLE, PROVIDED THE OUTSIDE OF THEPIPE CAN BE CONTAINED BETWEEN TWO OPPOSITE WALLS.

6. GRADE B WILL BE USED ONLY WHEN SPECIFIED IN THE CONTRACTSPECIAL PROVISIONS.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

CATCH BASININSTALLATION 420

6" MIN. P.C.C. 3-DAY MIX

PLAN VIEW

EXPANSION JOINT,FULL DEPTH

GUTTER LINE

SECTION A-A

PIPEDRAIN

12"

ADJUSTMENT RING

NOTES:

1-1/2" MIN. A/C PATCH

CURB AND GUTTER

WITH CONC. GUTTERSET CASTING FLUSH FLUSH WITH PAVEMENT

GRATE INSTALLED

A A

TYPICAL

1. WHEN LAYING CURB, LEAVE 6' OUT FORPLACING C.B., FRAME AND GRATE.

2. PLACE CURB AROUND C.B. USING CEMENTCONCRETE 3-DAY MIX.

3. AN APPROVED MATERIAL WHICH WILLPREVENT BONDING OF THE CURB TO FRAME,GRATE OR C.B. SHALL BE USED.



City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

THRU-CURB INLETFRAME AND GRATE

WITH VERTICAL CURBINSTALLATION

421

B B

AA

CO

NC

RE

TEC

UR

B

AN

D G

UTT

ER

RO

AD

WA

Y

SU

RFA

CE

SIDEWALK OR PLANTING STRIP

PARTIAL PLAN VIEW

SECTION A-A

SECTION B-B

NOTE:

INLET WITH PLANTERINLET WITH SIDEWALK

1/2" WIDE FULL DEPTHEXPANSION JOINT MATERIAL.

FLOW

2'

1/2" WIDE FULL DEPTHEXPANSION JOINT MATERIAL.

(TYP.)

1/2" WIDE FULL DEPTH EXPANSION JOINTMATERIAL. 2' FROM CENTER OF STRUCTURE

1. SET TO GRADE AND CONSTRUCT ROAD AND GUTTER TO BE FLUSH WITHFRAME.

2. SEE STD DRAWINGS 422, 423, AND 424 FOR TYPES OF GRATE USE.

3. SEE STD DWG 425 FOR FRAME DETAIL.

4. TYPE II STRUCTURE EXPANSION JOINT. THE WIDTH OF STRUCTURE PLUS 2'SQUARE IF IN SIDEWALK.

1'1'


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FRAME AND GRATE20"X24" 422

DETAIL NOTES:

FOUNDARY NAME, THIS SIDE TO CURB W/ARROW AND CITY OF BOTHELL (DI) FOR DUCTILE IRON SHALLBE EMBOSSED ON TOP OF THE GRATE WITH 1/16" RECESSED LETTERS.

SEATING OF GRATE SHALL BE ACCOMPLISHED BY ONE OF THE FOLLOWING: A. 8 INTEGRALLY CAST PADS (1-1/2"X 3/4" X 1/8"). B. MACHINE BOTTOM SURFACE OUTSIDE A 17" DIA.

MATERIAL USED SHALL BE DUCTILE IRON PER ASTM-A536 GRADE 80-55-06. ALL CASTINGSSHALL HAVE A BITUMINOUS COATING.

WHEN LOCKING GRATE IS REQUIRED, HOLES WILL BE PROVIDED IN THE CASTING TO ALLOWFOR TWO 5/8" DIA. STAINLESS STEEL SOCKET HEAD CAP SCREWS SO THAT NO PART OFHEAD PROTRUDES ABOVE TOP OF CASTING.

4

3

2

1

1'-10 1/2"

2'-0"

2'-0 1/4"

2'-2"

2'-5 1/4"

3/4"2 1/2"

1/8"

4 1/

2"

3/4"

1 5/8" 1"1/8"

1 5/

8"1

5/8"B B

2'-0"

1 3/4"

45°

1'-8

"

1"

3/4"

1/2"

1 3/4"

1/8"

1 1/

2"

R=1/8" ORCHAMFER (TYP)

3 1/4"

R=26"

CU

RB

FOUNDARY NAME

1'-6

1/2

"

1'-8

"

1'-8

1/4

"

1'-1

0"

2'-1

1/4

"

1

2

4

4

SECTION B-B

SECTION C-CSECTION A-A

CC

A A


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FRAME AND GRATE18"X24" 422A

DETAIL NOTES:

FOUNDARY NAME, THIS SIDE TO CURB W/ARROW AND CITY OF BOTHELL (DI) FOR DUCTILE IRON SHALLBE EMBOSSED ON TOP OF THE GRATE WITH 1/16" RECESSED LETTERS.

SEATING OF GRATE SHALL BE ACCOMPLISHED BY ONE OF THE FOLLOWING: A. 8 INTEGRALLY CAST PADS (1-1/2"X 3/4" X 1/8"). B. MACHINE BOTTOM SURFACE OUTSIDE A 17" DIA.

MATERIAL USED SHALL BE DUCTILE IRON PER ASTM-A536 GRADE 80-55-06. ALL CASTINGSSHALL HAVE A BITUMINOUS COATING.

WHEN LOCKING GRATE IS REQUIRED, HOLES WILL BE PROVIDED IN THE CASTING TO ALLOWFOR TWO 5/8" DIA. STAINLESS STEEL SOCKET HEAD CAP SCREWS SO THAT NO PART OFHEAD PROTRUDES ABOVE TOP OF CASTING.

4

3

2

1

1'-10 1/2"

2'-0"

2'-0 1/4"

2'-2"

2'-5 1/4"

3/4"2 1/2"

1/8"

4 1/

2"

3/4"

1 5/8" 1"1/8"

1 5/

8"1

5/8"B B

2'-0"

1 3/4"

45°

1'-6

"

1"

3/4"

1/2"

1 3/4"

1/8"

1 1/

2"

R=1/8" ORCHAMFER (TYP)

3 1/4"

R=26"

CU

RB

FOUNDARY NAME

1'-4

1/2

"

1'-6

"

1'-6

1/4

"

1'-8

"

1'-1

9 1/

4"

1

2

4

4

SECTION B-B

SECTION C-CSECTION A-A

CC

A A


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SOLID COVERRECTANGLE 423

DETAIL NOTES:

SECTION C-C

39-1/8"R

1-1/2"1-1/2"MIN

CLEAR

3

5

A

CC

B

2

5

4

B

5

1

4

3

2

1

26-1/4"R

3

A

1/4"

3-1/2"MIN.

24"

SECTION A-A

SECTION B-BPLAN VIEW

MATERIALS USED SHALL BE DUCTILE IRON PERASTM-A536, GRADE 80-55-06, WITH BITUMINOUSCOATING.

WHEN LOCKING GRATE REQUIRED HOLES WILL BEPROVIDED IN CASTING TO ALLOW FOR TWO 5

8" DIA.STAINLESS STEEL, SOCKET HEAD CAP SCREWS, NOPART OF SCREW WILL PROTRUDE ABOVE GRATE.

GRATE SEATING: 8 INTEGRALLY CAST PADS.

CAST POCKET LIFT HANDLE

NONSKID DIAMOND PATTERN APPROX.2-12" x 1" x 18" HIGH


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

VANED-GRATERECTANGLE 424

SECTION C-C

2-3/4"

DIRECTION OF FLOW

PLAN VIEW

VANE

3-1/2"R

2-1/2"1-1/4"

2-3/4"

1/8"

5/16"R

SECTION B-B

30°5°

2-3/4"

2-3/4" 2-3/4" 2-3/4"

24"

2-3/4"

B

2

SECTION A-A

PART OF SCREW WILL PROTRUDESOCKET HEAD CAP SCREWS. NO5/8" DIA STAINLESS STEEL,CASTING TO ALLOW FOR TWOHOLES WILL BE PROVIDED INWHEN LOCKING GRATE REQUIRED

BITUMINOUS COATING.GRADE 80-55-06, WITH DUCTILE IRON PER ASTM-A536,MATERIAL USED SHALL BE

1-5/8"

3/4" MAX.

1

(TYP.)1/2" MIN.

2-3/4" 2-3/4"

ABOVE GRATE.

DETAIL NOTES:

2

1"

1

1-5/8"

1-5/8"

B

1/8"

1-3/8"

C

C

USE ON SLOPES GREATERTHAN 6%.

3


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailOPEN CURB

FACE FRAME ANDGRATE DETAIL

425

EST. 365# USE CAST GRATE IRON ASTM A 48 CL.30.

HOOD DETAIL

PLAN VIEWB

USE VANED GRATE IN DUCTILE IRON AS SHOWN ON STD DETAIL 424.

NOTES:

B

SECTION C-C

SECTION B-B

28"

A

4"

A

5/8"-11 NC HOLESDRILL AND TAP TWO

LEVELING PAD7-1/8"x3/4"x

2-1/8"

7-7/8" 5°

5"

6"

20"

28"

3/4"

3/4"

2-1/4"THRU FRAME.

SECTION A-A

(2) 1" DIA. HOLES, FOR 3/4" BOLT,WASHER, AND NUT. (SEE NOTE 4)

MAKE 3/16" NON-SKID DIAMOND PATTERN ON TOP SURFACE.

BOLT, WASHER, AND NUT SHALL BE GALV. OR CORROSION RESISTANT.4.

3.

2.

1.

SEE NOTE 3

1"R

10°

3/4"

C

3-1/2°1-9/16"1-1/2"

HOOD ATTACHES AS SHOWN

MIN. DRAFT ONTHIS SIDE

5/8"

TOP OF CURB

C


City of Bothell

Revision Date

Jun, 2015

Approved By:

City Engineer

Standard DetailSTORM DRAIN

LOCKING MANHOLEFRAME AND COVER

426

SECTION A-A

A

TOP OF COVER

FRAME PLAN

24" D

IA.

COVER SHALL HAVETHE WORD "STORM"IN RAISED LETTERS

INSTALL FRAME AS TOCENTER HINGE OVERCENTER OF LADDER

33" D

IA.

NOTES:

1. OLYMPIC FOUNDARY MH38 OR EAST JORDAN ERGO001043L01 FRAME AND HINGED COVER.2. COVER AND FRAME SHALL BE MANUFACTUREDFROM DUCTILE IRON MEETS ASSHTO H20 ORAPPROVED EQUAL.3. CITY OF BOTHELL LOGO NOT REQUIRED.4. LID MUST BE COVERED WITH TAR PAPER BEFOREOVERLAY.5. GASKET CAN BE REPLACED; USED ONLY ORIGINALREXUS GASKET , AVAILABLE THROUGH AUTHORIZEDDEALERS.6. VERIFIED SLOTTED FRAMES ARE THOROUGHLYFILLED WITH MORTAR FOR EFFICIENT INTERACTIONWITH IRON AND STRUCTURE.7. VERIFY GASKET IS PROPERLY CLAMPED ON ITSFRAME GROOVE ALONG ITS ENTIRE LENGTH.

sT O R M


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FRAME AND COVERADJUSTMENT 427

NOTES:

SECTION

STORM

1. REMOVE PAVEMENT AND BASE MATERIALS FOR A DISTANCE WHICH IS EQUALTO THE DIAMETER OF THE FRAME PLUS TWO FEET. ADJUST CASTING FRAME TONEW PAVEMENT SURFACE USING CONCRETE BLOCKS.

2. 2"x4"x8" SOLID BRICK USED FOR FINAL ADJUSTMENT TO GRADE. 6" HIGH MAX.

CONCRETEBLOCKS SEENOTE 2

PATCH PAVEMENT JOINTWITH SEALANT AR4000W.

PATCH AREA SEENOTES 1 AND 2

EXISTING PAVEMENT12"OUTSIDE

DIA.12"

4" COMPACTED DEPTHCLASS B HOT MIX ASPHALT

6" MIN. CONCRETE COLLARCLASS 3000 CONCRETE

4" MIN. COMPACTED DEPTHCRUSHED SURFACING TOP COURSE

EXISTING OFFSET CONEMANHOLE OR TYPE 2CATCH BASIN

EXISTING TYPE 1 OR 2CATCH BASIN


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailFLOATABLE

MATERIAL SEPARATOR6" OR 8" PIPE

430

STD DETAIL 413

TYPE 1 22" X 26"

TYPE 1L 28" X 32"

STD DETAIL 412

24"

1" VENT HOLE

FACTORY TEE6" OR 8" PVC

AS REQUIRED6" OR 8" PVC PIPE

6" OR 8" PVC PIPE

GROUT

TO PUBLIC S.D.

ADAPTOR OR PIPE

6" OR 8" PVC

MAX.

JOINT

2'

REMOVABLE PLUG

NOTES:1. MAX. RIM EL. INV. EL. DIFFERANCE GREATER THAN 5' SEE STD DTL 431.



City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailFLOATABLE MATERIAL

SEPARATOR12" AND LARGER

431

0.10' MAX

11

5

7

9

12

ELEVATION

10

6

54"

3

13

424"

2

GROUT

SD

1

PLAN VIEW

8

10 GROUT

9

9 SEE PLAN AND SPECIFICATIONS FOR

12" FOR 24" DIA. AND LARGERCLEAN OUT AT 8" DIA. MIN.

INV. EL. : SEE PLANS AND

LIFT HANDLE SEE STD DETAIL 444.

AND TACK WELD TO SEPARATOR UNIT.WITH STAINLESS STEEL ANCHOR BOLTSALUMINUM STRAP. BOLT TO CB WALLSECURE SEPARATOR TO CB WITH 8 GA

SIZE AND TYPE OF PIPE ENTERING

OUTLET PIPE.

AND EXITING CB.

SPECIFICATIONS.

13

12

8

9

11

10

BAND STRAP WITH GASKET.

54" TYPE 2 CB OR LARGER.

18" FOR OUTLETS OF 18" AND SMALLER.36"FOR OUTLETS OF 24" AND LARGER.

COVER OR WHEN IT IS TO BE A CBINSTALL STD DETAIL 426 WITH LOCKING

OPENING AND STEPS CLEAR INLETTHAT LIFT GATE IS VISIBLE THROUGHINSTALL MANHOLE ACCESS SO

1" VENT HOLE.

MIN CLEARANCE:

SEPARATOR ASSEMBLY.

THEN USE STD DETAIL 420.

AND RESTRICTOR UNIT.

8

7

6

3

4

2

DETAIL NOTES:

1

SD

MIN.

POLYPROPLENE PLASTIC STEP SEE STD5DETAIL 643.

GROUT ALL JOINTS INSIDE AND OUTSIDE.14


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

OIL WATER SEPARATORAPI VAULT 435

A A

12"

12"

5-1/2"

GALVANIZEDSTEEL PLATE BAFFLESAND WEIR

8" 0 HOLE TYPICALEACH END FORINLET AND OUTLET

NO. 3030P DIAMONDPLATE ACCESS DOOR

2 No. 1012PDIAMOND PLATEINSPECTION COVERS

OIL/WATERSEPARATION

CHAMBER

OIL RETAINERBAFFLE

FLOW DIFFUSERBAFFLE

GRIT/SLUDGERETAINER WEIR

INSPECTION ANDSAMPLING TEE

24"12" 24" 12"

2 NO. 1012P DIAMONDPLATE INSPECTION COVERS

NO. 3030P DIAMONDPLATE COVER

PLAN VIEW-BASE PLAN VIEW-COVER

SECTION B-BSECTION A-A

4'-0"16"

6'-0"

21"23"

23"

6'-0"

21" 16"

6'-0"

NOTES:VAULT SIZE TO BE DETERMINED BYSITE SPECIFIC CHARACTERISTICS.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailOIL WATER SEPARATOR

COALESCINGPLATE-SAMPLE

436

NOTES:

Sq. Ft. ofEffectiveSeparationArea

Capacity at0.25 Gpm/Sq.Ft.

A B C InletSize

OutletSize

OilOutletSize

SludgeOutlet Size

33

200

300

600

1200

2400

3200

4600

8 GPM

50 GPM

75 GPM

150 GPM

300 GPM

600 GPM

800 GPM

1150 GPM

Sq.Ft.

300 GPM

1600 GPM

2300 GPM

600 GPM

1200 GPM

100 GPM

150 GPM

16 GPM

0.50 Gpm/Capacity at

27"

48"

56"

56"

82"

92"

115"

138"

84"

186"

187"

154"

152"

72"

84"

62"

72"

129"

128"

89"

98"

66"

72"

30"

8"

18"

15"

10"

12"

4"

6"

4"

8"

15"

15"

10"

12"

4"

6"

4"

3"

4"

4"

3"

3"

2"

2"

2"

3"

4"

4"

3"

3"

2"

2"

2"

ABOVE CAPACITIES ARE BASED ON 55° ANGLE OF INCLINATION.

LARGER CAPACITIES AVAILABLE.

1.

2.

SEE SECTION 6.6.2 OF THE K.C.W.D.M. FOR DESIGN DETAILS.3.

OIL OUTLET

SLUDGE OUTLET

WATER INLET

WATER OUTLET

FLOW BAFFLE

SEPARATOR PLATE UNIT

SEPARATOR VAULT


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

OIL WATERSEPARATOR 437

SEE STD DETAILS 435 OR 436

(NOT ALLOWED IF FOR

NOTES:SIZED FOR 2 YEAR 24 HOUR DESIGN STORM EVENT.

SPILL CONTAINMENT

CATCH BASIN

ONLY).

SUGGESTEDCONFIGURATION FORBYPASS PIPING WITH25 YEAR CAPACITY

CATCH BASIN

FLOW DIVERSION STRUCTURE

PLAN VIEW

SEE STD DETAILS 468 OR 469.

CATCH BASIN

GATE VALVE

TO DRAIN FACILITY IN ONEPROVIDE GRAVITY DRAIN

HOUR FOR MAINTENANCE.


City of Bothell

Revision Date

Nov, 2013

Approved By:

City Engineer

Standard Detail

CONTROL STRUCTURE54" DIAMETER 439

ELEVATION

DETAIL NOTES:

1

2

3

4

5

6

7

8

9

1

GROUT

10

9

GROUT

78

11

12

13

14

14

SD

6" MIN.

0.10' MAX.

6

11

8

10

4

5

24"

12

3

2

13

9

15

15

INSTALL 1-18" AND 1-24" DIA. MH. ACCESS PERSTD DWG 426, SO THAT THE LIFT GATE ISVISIBLE AND THE STEPS ARE CLEAR ANDDIRECTLY ACCESSIBLE. THE OTHER IS OVERTHE 12" RESTRICTOR.

OVERFLOW ELEVATION - SEE PLANS.

RESTRICTOR UNIT - SEE STD DETAIL 441.

POLYPROPLENE PLASTIC STEP SEE STDDETAIL 643.

MIN CLEARANCE:36" FOR OUTLETS OF 24" AND LARGER.18" FOR OUTLETS OF 18" AND SMALLER.


BAND STRAP WITH GASKET.

SEE PLAN AND SPECIFICATIONS FOR SIZEAND TYPE OF PIPE ENTERING AND EXITINGCB.

SECURE RESTRICTOR TO CB WITH 8 GAALUMINUM STRAPS BOLT TO CB WALL WITHSTAINLESS STEEL ANCHOR BOLTS. ONESTRAP ABOVE AND BELOW OUTLETREQUIRED, INTERMEDIATE STRAPS REQUIREDFOR RESTRICTOR RISERS GREATER THAN 12"ABOVE OUTLET.

LIFT HANDLE CONNECTOR-SEE STD DETAIL444.

INVERT ELEVATION: SEE PLANS ANDSPECIFICATIONS.

SHEAR GATE - SEE STD DETAIL 444.

FOR POND APPLICATIONS EXPAND THESTRUCTURE HIGHER AND PROVIDE A FRAMEDOVERFLOW DEBRIS GRATED OPENINGABOVE THE RESTRICTOR UNIT.

I.D. PLATE PER BOTHELL SURFACE WATERDESIGN MANUAL CORE REQ. #1.2.6

CLEAN OUT TO INSPECT STRUCTURE

OVERFLOW INVERTS


City of Bothell

Revision Date

Nov, 2013

Approved By:

City Engineer

Standard Detail

CONTROL STRUCTURE72" DIA. OR LARGER 440

ELEVATION

DETAIL NOTES:INSTALL 1-18" AND 1-24" DIA. MH.ACCESS PER STD DETAIL 426, ONE SO THATTHE LIFT GATE IS VISIBLE AND THE STEPSARE CLEAR AND DIRECTLY ACCESSIBLE.

OVERFLOW ELEVATION - SEE PLANS.

RESTRICTOR UNIT - SEE STD DETAIL 441.

MIN CLEARANCE:36"FOR OUTLETS OF 24" AND LARGER18" FOR OUTLETS OF 18" AND SMALLER


BAND STRAP WITH GASKET

SEE PLAN AND SPECIFICATIONS FORSIZE AND TYPE OF PIPE ENTERING

24"

SECURE RESTRICTOR TO CB WITH 8 GAALUMINUM STRAPS BOLT TO CB WALLWITH STAINLESS STEEL ANCHOR BOLTS.ONE STRAP ABOVE AND BELOW OUTLETREQUIRED, INTERMEDIATE STRAPSREQUIRED FOR RESTRICTOR RISERSGREATER THAN 12" ABOVE OUTLET.

1

2

3

4

5

6

7

8

9

1

8

3

4

5

6

11

GROUT

LIFT HANDLE CONNECTOR-SEE STD DETAIL 444.10

10

0.10' MAX.

9

GROUT

78

11 INVERT ELEVATION: SEE PLANS ANDSPECIFICATIONS.

AND EXITING CB.

12"

MIN.

6" MIN. SHEAR GATE - SEE STD DETAIL 444.12

FOR POND APPLICATIONS EXPAND THESTRUCTURE HIGHER AND PROVIDE A

13

FRAMED OVERFLOW DEBRIS GRATED OPENING ABOVE THE RESTRICTOR UNIT

12

13

14

WATER DESIGN MANUAL COREI.D. PLATE PER BOTHELL SURFACE14

THE OTHER IS OVER THE RESTRICTOR UNIT.

POLYPROPLENE PLASTIC STEP SEE STDDETAIL 643.

SD

9

2

REQ. #1.2.6

15

CLEAN OUT TO INSPECT STRUCTURE15


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

RESTRICTORRISER 441

2

1

NOTES:RESTRICTOR UNIT SHALL BE CONSTRUCTED OFCORRUGATED POLYETHYLENE PIPE AASHTO M294

FOR PVC APPLICATIONS, ALL CONNECTIONSSHALL BE MADE USING STANDARD FITTINGS,NO WELDING SHALL BE USED.

TYPE S, POLYVINYL CHLORIDE (PVC) ASTMD-3034 SCHEDULE 40, OR ALUMINIZED CMP.

FOR COMBINED WET/DETENTION PONDS,

DELETE ORIFICE AT

DETAIL NOTES:

INV. EL. PER PLANS

1

OVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONSORIFICE DIA. = SEE PLANS AND SPECIFICATIONS

OVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONSORIFICE DIA. =SEE PLANS AND SPECIFICATIONS

ORIFICE DIA. = SEE PLANS AND SPECIFICATIONSOVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONS

SHEAR GATE SEE STD DETAIL 444.8" SIZE FOR 18" AND SMALLER

24" AND LARGER - OUTLET PIPE- OUTLET PIPE 12" SIZE FOR

SECONDARY ORIFICES, TYP.SEE STD DETAIL 443

6"

1

24"

OVERFLOW EL.

2

OUTLET PIPE MAY BE ADS N12 SMOOTH HDPE OR TAPERED SMOOTH HDPE - TYPE, LENGTH AND

3/8" HDPE PLATE WELDED ALL AROUND - ORIFICE OPENING SIZE ACCORDING TO PLANS.

SIZE AS SHOWN ON PLANS.

1.

2.

3.

MIN.

FOR HDPE APPLICATIONS


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SECONDARYORIFICE DETAIL 443

INV. EL.

STANDPIPE WALL

STUB WELDEDTO STANDPIPE

ORIFICE PLATE WELDEDTO STUB. ORIFICEMACHINE-CUT

ELBOW

ALL PARTS TO BE HDPE OR PVC OR ALUMINUM EXCEPT AS NOTED

2

1

1/2" THICK BOLT FLANGE TAPPED FOR (3) 1/2"DIAMETER NYLON BOLTS-INCLUDE A NEOPRENE GASKET(ELEVATION PER PLANS).

1

2 WELDED 90 DEG. BEND (SIZE PER PLANS) WITH 1/2"THICK BOLT FLANGE DRILLED FOR 1/2" DIAMETERNYLON BOLTS.

DETAIL NOTES:


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SHEAR GATE 444

FRONT

HOLES ON 10 3/8"

CONNECTIONBOLTING TO FLANGEBOLT CIRCLE FOR

VARIABLE LENGTH, WITH HANDLE1" ROD OR TUBING,

SCREWHOOK WITH LOCKADJUSTABLE LOCK

LOCK PINHANDLE WITH

SIX EVENLY SPACED

LIFT HANDLE SHALL BE ATTACHED PERMANUFACTURER'SRECOMMENDATIONS.

LEVEL LINE

LIFT HANDLE

MAXIMUM OPENINGOF GATE

SIDE

FINISHED GRADE

WITHIN REACH FROM SURFACELEVEL OF STRUCTURE


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailDETENTION POND

WITH BIOFILTRATIONSWALE

445

ELEVATION

2'MAX

2' MAX.

LOCKING LID PERSTD DETAIL ASAPPLICABLE

(DIA. AND LENGTH PER PLANS)

APPLICABLESTD DETAIL ASLOCKING LID PER

CONTROL STRUCTURE PER STD DETAIL 439 OR 440

TYPE 2-54" CATCH BASINWITH 2' MIN CATCH

.005 /FT

36" DIA

36" MIN. DIA

2" MIN. DIA. AIR

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

12" MIN

DETENTION PIPE

FINISHED GRADE FOR TYPESEE PLANS AND SPECIFICATIONS

A

DETENTION PIPE

COVER

NORMAL WATERLEVEL

W

VENT PER PLANS

6" DEAD STORAGE

SEE STD DETAIL 414

A

NOTES:

SECTION A-A

SAND - WITH SOIL ENGINEEREDCOMPACTION TEST

5/8" MINUS CRUSHED ROCK

PEA GRAVEL

OR

OR

1. ANNUAL INSPECTIONS AND CLEANING REQUIRED BY OWNERTO INSURE PROPER OPERATION OF DETENTION SYSTEM.

2. W = MAX.IMUM WIDTH OF TRENCH FOR PIPES 15" OR LESS INDIA. W = 40". FOR PIPES 18" OR GREATER W = 1 1/2" x I.D. + 18".

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


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

DETENTION PONDTYPICAL SECTIONS 456

TOP WIDTH OF BERM6' MIN. (18' MIN.TO PROVIDE A 16'

BERM EMBANKMENT

EXISTINGGROUNDPROFILE

6' MIN.

2 1

21

"KEY" EXCAVATEDINTO NATIVE GROUND

100 YEAR W.S.

CONTROL STRUCTURE

EMERGENCY OVERFLOW W.S.

OVERFLOW W.S.POND DESIGN W.S.

1' DEAD STORAGE

DRY POND OUTFALL

CIRCUMFERENTIAL LENGTHOF OPENING SIZED FORDESIGN FLOW AT 6" DEPTH

FRAME/GRATE FOR CONTROLLEDPOND OVERFLOW PROVIDEVERTICAL BARS IN FRAME AT4" O.C. (OTHER FLOW SYSTEMSACCEPTABLE IF APPROVED BYTHE CITY ENGINEER).

OVERFLOW W.S.

POND DESIGN W.S.

12" MIN.

L

2" ASPHALT(FOR SPILLWAY ON ACCESS RDS.)

SECTION A - A

(AS REQUIRED FOR 6" DEPTH)

101

101

6' MIN.

OVERFLOW W.S.

1' ROCKLINING

9" MIN. THICKNESS ROCKPROTECTION PER TABLE4.4.1.A OF KING COUTY SWDM

FREEBOARD1' MIN.

31 1

3

EMERGENCY OVERFLOW WATER SURFACE(SEE FIG. 5.3.1.E OF KING COUNTY SWDM)

EMERGENCY OVERFLOW SPILLWAY

OVERFLOW STRUCTURE

NOTES:FOR WET PONDS, OR COMBINEDDETENTION/WET PONDS:

1. INCREASE DEAD STORAGETO 4' MIN., 6' MAX.

2. INSTALL A GATE VALVE @ BASE OF OUTFLOWSTRUCTURE TO ALLOWFOR DRAINAGE OF THEPOND.

3. FOR WET POND, DELETERESTRICTION RISER.

ACCESS ROADS.)


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SWALE BIOFILTRATIONTYPICAL SECTION 460

SWALE CROSS SECTION

4" TOP SOIL

SEE KING COUNTY SWDM APPENDIX D.4.2.4 (*) FORRECOMMENDED SEED MIXED

3

1 MAX

1' MIN. OR GREATER AS REQUIRED FOR PEAK FLOWCONVEYANCE WITH HALFFOOT OF FREEBOARD.

* KING COUNTY SURFACE WATER DESIGN MANUAL


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

PIPE OUTFALLQUARRY SPALLS 461

REQUIRED DIMENSIONS

8' FOR ROCK LINING

12' FOR RIP RAP

SEE TABLE 4.2.2.A IN KING COUNTY SWDM

A+B

CL

CHANNEL

PLAN VIEW

SECTION A-A

DISCHARGE PIPE

1' OR 2' ROCK THICKNESSSEE TABLE 4.2.2.A IN KING COUNTY SWDM

FILTER FABRICLINER UNDERROCK

1' MIN.

A

A

PLACE ROCK 1' ABOVE CROWN BOTHSIDES CHANNEL FOR "A" ' ONE SIDECHANNEL FOR "A" 8'


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

PIPE OUTFALLGABION TYPE 462

GABIONS (TYP.)(SIZE AS REQD.)

RIP RAP

PLAN VIEW

RIP RAP

SECTION C-C

EXIST.GROUNDLINE

SLEEVE OF NEXT LARGER SIZE DIA.PIPE FOR THERMAL EXPANSIONAND CONTRACTION

RIP RAP RIP RAP

PIPEANCHOR

PLACE FILTER FABRIC BETWEENGABIONS AT SOIL BEDDING

SECTION A-A SECTION B-B

EXIST. GROUNDLINE

CC

SD PIPE


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailPIPE OUTFALL

MORTARED QUARRYSPALL MAT

463

PVC PIPE

FILTER FABRIC

4" TO 6" QUARRY SPALLS,MORTARED IN SPACE

DO NOT MORTAR QUARRY SPALLS IF THE MAT FALLS WITHIN THE ANNUAL HIGH WATERMARK OF ANY STREAM.

18"

12"

18"

60"

PLAN VIEW

NOTE:


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FRENCH DRAINUNDER ROAD 464

NOTES:

PLUG END

SECTION X-X

SECTION Y-Y

TOP OF GROUND BASEOR BALLAST

SUBGROUND

GRAVEL BACKFILLFOR DRAINS

UNDERDRAIN PIPE6" DIA.

.25' MIN.

PLAN VIEW

.05'

2'

X

X

A

C OFDRAINL

DRAIN TRENCHAND GROUND BACKFILL

CL

PIPE

1. UNDERDRAINS OF THIS TYPE SHALL BE CONSTRUCTED AFTER THE GRAVEL BASE AND/OR BALLAST IS IN PLACE.

2. THE SPACING (5) SHALL BE AS REQUIRED FOR THE PARTICULAR PROJECT BUT NOT MORE THAN 500 FEET ON GRADES INEXCESS OF 2.5%.

3. THE PATTERN MAY HAVE TO BE VARIED IN CASE OF A SPECIAL DESIGN FOR SPRINGS OR FREE WATER IN THE SUBGRADE.

4. THE ANGLE (A) SHALL VARY TO PROVIDE A MINIMUM QUADRANT ON THE DRAIN OF 0.5%.

5. DIRECTIONAL ROADWAYS OF MULTILANE HIGHWAYS SHALL BE DRAINED INDEPENDENTLY OF ONE ANOTHER. DRAINAGEFLOW, PREFERABLY, SHOULD BE AWAY FROM THE MEDIAN.

6. SECTION Y - Y INDICATES THE MINIMUM REQUIRED AREA OF EXCAVATION. THE CONTRACTOR MAY, UPON THE APPROVAL OFTHE DIRECTOR, EXCAVATE ADDITIONAL AREA IF REQUIRED FOR CONVENIENCE.

7. THE PIPE SHALL BE A 6" DIAMETER UNDERDRAIN PIPE.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

PIPE AND SECTIONTRASH RACK 465

NOTES:

CMP END-SECTION SHOWN. FOR CONCRETE PIPE BEVELEDEND-SECTION, SEE KING COUNTY ROAD STANDARDS FIG. 7-001.

ALL PARTS MUST BE ALUMINUM OR STAINLESS STEEL.

MAY BE REMOVED

3/4" DIA. SMOOTHBARS WITH ENDS WELDED TO BAR-FRAME

31

END SECTIONPIPECOUPLING

3/4" DIA.BAR-FRAME

2'X5' ANCHOR STRIPSWELDED TO 3/4" DIA.BAR-FRAME 4 PLCS.SPACED UNIFORMLYFASTEN WITHIN 1/2"BOLTS AND NUTS.

3"-5" FOR 18" DIA.5"-8" FOR 24" DIA.7"-9" FOR 30" DIA.AND GREATER

4" O.C. MAX.BAR SPACING1' MIN.

BEVELED PIPE

PLAN VIEW

END VIEW

PLAN VIEW

1.

2.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

CONETRASH RACK 466

PLAN VIEW

SECTION A-A

DETAIL HOOK CLAMP

15° (TYP.) SEE NOTE 1.

AA

HOOK CLAMPS (4) PLACESEVENLY SPACED SEE DETAILBELOW.

3/4" DIA. SMOOTHBARS EQUALLY SPACED(4" O.C. MAX.)

PROVIDE MAINT. ACCESS BY WELDING(4) CROSS BARS TO (4) VERTICALBARS AS SHOWN. HINGE UPPER ENDSWITH FLANGES/BOLT AND PROVIDE LOCKING MECHANISM (WITH PADOCK)ON LOWER END. LOCATE LADDERSTEPS DIRECTLY BELOW.

LOWER STEEL BAND3/4" THICK X 4" WIDEFORMED TO FIT INGROOVE OF CB RISER.

3/4" THICK X 4" WIDE LONG SMOOTH BARS WELDEDTO UPPER AND LOWER BANDS(24 BARS EVENLY SPACEDSEE NOTE 1.)24"

SEE NOTE 1.

45°

SMOOTH VERTICALBARS

HOOK CLAMPANCHORED TO CB RISER

1. DIMENSIONS ARE FOR INSTALLATION ON 54"DIA. CB FOR DIFFERENT DIA. CB'S ADJUSTDIMENSIONS TO MAINTAIN 45° ANGLE ON"VERTICAL" BARS AND 7" O.C. MAX. SPACINGOF BARS AROUND LOWER STEEL BAND.

METAL PARTS CORROSION RESISTANT, STEELPARTS GALVANIZED.

THIS DEBRIS BARRIER IS ALSO RECOMMENDEDFOR USE ON THE INLET TO ROADWAY CROSS-CULVERTS WITH HIGH POTENTIAL FOR DEBRISCOLLECTION (EXCEPT ON TYPE 2 STREAMS).

2.

3.

UPPER STEEL BAND3/4" X 4" WIDE

STEPS SEESTD. DETAIL 643

NOTES:


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

PIPE ANCHORS 467

NOTES:

CONCRETE BLOCKANCHOR

STRAP-FOOTINGANCHOR

SECTION A-A SECTION B-B

FOR HDPE, PIPE MUST BE FREE TO SLIDE INSIDE A 4' LONGSECTION OF PIPE ONE SIZE DIAMETER LARGER.

CONCRETE BLOCK KEYEDINTO UNDISTURBED SOILAS SHOWN.

1" MIN. DIA.STEEL ROD (STRAP)CLAMPED SECURELYTO PIPE.

CONCRETE FOOTINGKEYED INTO UN-DISTURBED SOILAS SHOWN.

CONCRETEBLOCK

PIPE BEDDED

6" MIN.(TYP.)

1' MIN.

6" MIN.

6" MIN.

6" MIN.

1' MIN.

2 X PIPE DIA.

MIN

6"

3' MIN..


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FLOW SPLITTERTYPE A 468

ELEVATION

PLAN VIEW

TYPE II

NOTES:

TO WATER QUALITY

FACILITY

REINFORCED BAFFLE WALLGROUTED TO MH. STRUCTURE(BOTH ENDS)

TO BYPASS CONVEYANCESYSTEMS OR DENTENTION POND

4' MIN. OR PROVIDE SEPARATORACCESS TO EITHER SIDE OF

PER STD DETAIL 426 OR C.B.MH. FRAME WITH COVER

INFLOW

PROVIDE STEPS TO BOTHSIDES OF WALL IF GREATER

STEPS PER STD DETAIL 643

2' MIN.

BAFFLE WALL

SUITABLE MATERIAL

4" MIN. THICKNESS

BAFFLE WALL OR OTHERREINFORCED CONCRETE

BYPASS PIPE

FRAME WITH SOLID COVER

CATCH BASIN

THAN 36" HIGH

PER STD DETAIL 423

QUALITY FACILITYTO WATER

1. THE WATER QUALITY DISCHARGE PIPE MAY REQUIRE AN ORIFICE PLATE BEINSTALLED ON THE OUTLET TO CONTROL THE HEIGHT OF THE DESIGN WATERSURFACE (WEIR HEIGHT). THE DESIGN WATER SURFACE SHOULD BE SET TOPROVIDE A MINIMUM HEADWATER/DIAMETER RATIO OF 2.0 ON THE OUTLET PIPE.



City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FLOW SPLITTERTYPE B 469

ELEVATION

PLAN VIEW

TYPE II

INFLOW

TO WATER QUALITY

FACILITY

CATCH BASIN

DIA. OF STANDPIPE (2X DIA.OF OUTLET PIPE RECOMMENDEDAS STARTING POINT)

BAFFLE TO CONTROLFLOATABLES

TO BYPASS CONVEYANCESYSTEMS OR DENTENTION POND

ORIFICE SIZED TO PASSWQ DESIGN FLOW

"TEE" SECTION WITH CLEANOUT(OR REMOVABLE BEND-DOWNELBOW)

TOP OF RISER AT DESIGN WS ELEVATION

PER STD DETAIL 426 OR C.B.MH. FRAME WITH COVER BAFFLE TO CONTROL

FLOATABLES OR PROVIDE

INFLOW

6"6"

DESIGN WATER SURFACEELEVATION AND HEAD

TOP OF PIPE AT WQ

LOSSES IN OUTLET PIPE

SOLID BOTTOM(PROVIDEMAINTENANCEACCESS)

FRAME WITH SOLID COVER

FACILITYTO WATER QUALITY

2D

PER STD DETAIL 423SPILL CONTROL UPSTREAM

THAN 36" HIGHSIDES OF WALL IF GREATER

STEPS PER STD DETAIL 643PROVIDE STEPS TO BOTH

NOTE:GROUT ALL JOINTS INSIDE AND OUTSIDE.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailPAVED AREAS

AND AREA WITHINTHE RIGHT-OF-WAY

470

NOTES:

SOILS ENGINEERINGDETAIL NEEDED

18" MIN.

PIT RUN 3" MINUS

2"-4" ROCK OROTHER MATERIAL

CRUSHED ROCK5/8"-1 1/2"

NATIVE MATERIAL IFAPPROVED BY

DIRECTOR

6" MIN.

LISTED ABOVE90% COMPACTION

90% COMPACTION

90% COMPACTION

95% COMPACTION

SUBGRADE

SECTION

PIT RUN 3" MINUS

CRUSHED ROCK5/8"-1 1/2"

3' MIN.

TRENCH WIDTHS

NOMINALPIPE

DIAMETER

2

3

4

6

8

MINIMUM

18

21

24

18

18

EARTH

24

24

24

ROCK

24

24

MINIMUM

36

36

36

MAXIMUM

36

36

(IN INCHES)

12 28 28 40

PIPE ZONEPEA GRAVEL

SOIL ENGINEER AND COMPACTION TESTREQUIRED FOR ALL

- 5 8" MINUS CRUSHED ROCK- SAND- OR OTHER APPROVED SELECT FILL

1. BEDDING - IN RIGHT-OF-WAY, DRIVEWAY,PARKING LOTS, PAVED AREAS.

2. FOR PATCHING SEE STD DETAIL 317.

3. BEDDING WITH PEA GRAVEL 6" MIN UNDERPIPE TO TOP OF PIPE.

3.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailUNPAVED AREAS

OUTSIDE OFTHE RIGHT-OF-WAY

471

SOILS ENGINEERINGDETAIL NEEDED

12" MIN.

NATIVE

AREASNON-PAVED

6" MIN.

90% COMPACTION

90% COMPACTION

90% COMPACTION

90% COMPACTION

SUBGRADE

SECTION

NOTE:

(IN INCHES)

ROCKMINIMUM

TRENCH WIDTHS

216

8

12

24

28

2

3

4

DIAMETERPIPE

NOMINAL

18

18

18

EARTHMINIMUM

3624

28

24

40

36

MAXIMUM

24

24

24

36

36

36

1

1. BEDDING MATERIAL FOR PIPE - 6 "MIN. UNDER PIPE TO TOP OF PIPE -PEA GRAVEL, 5/8" MINUS CRUSHEDROCK, OR SAND APPROVED BY CITYENGINEER.

PIPE ZONE


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

STEEP SLOPE SIGNINSTALLATION 480

Help protect and care for this area.

THE SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER,SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.

SIGN SHALL BE STATIONED IN A PROMINENT LOCATION, i.e., AT THE CLOSEST POINT TO THE PROPOSEDDEVELOPMENT. SIGN MAY ALSO BE ATTACHED TO FENCES.

ATTACH SIGN TO POST WITH DRIVE RIVETS PERSTD DETAIL 384

BACKGROUNDCOLOR: BEIGE

FOREGROUNDCOLOR: TEAL

SIGN SIZE: 24"X36"

2X2 UNISTRUT ASPER STD DETAIL 384.

STEEP

SLOPE

AREA

NOTES:

1.

2.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

WETLAND SIGNINSTALLATION 481

WetlandHelp protect and care for this area

THE WETLAND SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER,SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.


ATTACH SIGN TO POSTWITH DRIVE RIVET PERSTD DETAIL 384



(WETLAND NUMBER)

SIGN SIZE: 24"X36"

2X2 UNISTRUT ASPER STD DETAIL 384.

NOTES:1.

2.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

STREAM SIGNINSTALLATION 482

StreamHelp protect and care for this area

THE STREAM SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER,SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.


(STREAM NAME)

SIGN SIZE: 24"X36"



PER STD DETAIL 3842X2 UNISTRUT AS

NOTES:1.

2.

ATTACH SIGN TO POSTWITH DRIVE RIVET PERSTD DETAIL 384


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailOUTFALL TO DITCH

LAYOUTSMALL PROJECTS

495

BOTHELL STREET

PERF. PIPEFOOTING DRAIN

SOLID PIPEFOR DOWNSPOUTS

SINGLE FAMILY HOME

PROPERTY LINE(TYP)

CLEANOUT(TYP)

DRIVEWAY

SINGLE FAMILY HOMESINGLE FAMILYHOME

NEW ORREMODELED

YDSEE NOTE 2

CB TYPE 1

SEE STD DETAIL 496

EDGE OF PAVEMENT

NOTES:

DRIVEWAY DRIVEWAY

SEE NOTE 1

IF THIS DISTANCE IS 50' OR LESS, THE DITCH MUST BE TIGHT LINED. ADDITIONAL CATCH BASINS

INSTALL YARD DRAIN PER STD DETAIL 410 AT CONNECTION POINT OF FOOTING DRAIN AND DOWN2.

1.MAY BE REQUIRED BASED ON SITE CONDITIONS.

SPOUT PIPES.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

OUTFALL TO DITCHSMALL PROJECTS 496

EX. CULVERT

D/W TOP OF BANK

CSTC

2' MIN.

A.C. PAVING

C.B. TYPE I

MATCH CROWN'S

EX. DRIVEWAY

NEW A.C.

FILL DITCH TOTOP OF BANK

NEW SD FROM SMALLDRAINAGE AREA

21

FLOW

TRIM EXISTING SD PIPE FLUSHWITH CATCH BASIN WALL

PROFILE

PLAN VIEW

STD DETAIL 412


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

FOOTING DRAIN 497

SINGLE FAMILY HOME

FOOTING DRAINTO SURROUNDSTRUCTURE

6"

MIN.

OR EQUIVALENT WRAP TO SURROUND GRAVEL. OVERLAP

MINIMUM 6" ROCK ON TOP

4" PVC SDR31 RIGID PERF.PIPE. PLACE WEEPHOLES

ON TOP.

SEPARATE FROM FOOTING DRAIN.ROOF DRAIN - 4" TIGHTLINE

MIRAFI 140NSL FILTER FABRIC

MATERIALS WHICH MAY DAMAGEOF CONCRETE, COBBLES OR OTHERGRANULAR BACKFILL TO BE FREE

PIPE.

NOTES

DOWNWARD.

3/4" -1 1/2" WASHED ROCK TOTOP OF FOOTING.

12" TOPSOIL.

F.G. CRAWL SPACE

4"

1. FOOTING DRAIN MUST TIE INTO SITE STORM SYSTEM BY GRAVITY FLOW.

2. ROOF DRAIN SHALL RUN INDEPENDENT OF FOOTING DRAIN UNTIL POINT OF CONNECTION TOCITY STORM WATER FACILITY OR ON SITE DETENTION FACILITY.

3. FOOTING DRAIN MUST PROVIDE AT LEAST 6" OF CLEARANCE BETWEEN CRAWLSPACE FINISHEDGRADE OR BOTTOM OF SLAB-ON-GRADE, AND TOP OF FOOTING DRAIN.


City of Bothell

Revision Date

Jun, 2015

Approved By:

City Engineer

Standard Detail

STORM PIPECLEANOUT 498

NOTE:

14"

12"

20"

4"

12" CASTING FORCELOCKING

RING AND COVER

PAVED AREAS UNPAVED AREAS

12"

30" SQ

PLPAVED AREAS UNPAVED AREAS

PL

STORM

1. CLEANOUT PIPE AND FITTINGS SHALL BE PVC.

2. A SANITARY TEE OR SWEEP MAY BE INSTALLED IN LIEU OF A WYE ASSHOWN. STRAIGHT TEES ARE NOT ACCEPTABLE.

3. FOR NEW PLATS THE VERTICAL RISER PORTION OF THE CLEANOUT WILLBE CONSTRUCTED AT TIME OF CONNECTION TO BUILDING TO MINIMIZEDAMAGE, THE 6" WYE AND 6' PVC PIPE WITH MECHANICAL PLUG WILL BEINSTALLED PRIOR TO BUILDING CONNECTION.

4. STORM PIPE STUB WILL BE EXTENDED 10' BEYOND PROPERTY LINE TOPREVENT DAMAGE TO CLEANOUT AND MINIMIZE CONFLICTS WITH OTHERUTILITIES WHEN SERVICE TO BUILDING IS ACCOMPLISHED.

10' (NOTE 4)

MECHANICAL PLUG

SEE STDNO. 602

FIBER JOINTPACKING

12" PVCSLEEVE

CEMENT CONCCLASS 4000

CAST IRON LOCKINGRING AND COVER

PAVEDSURFACE

10' (NOTE 4)

12"

#10 SOLID CORE TRACER WIRE(2) WRAPS MINIMUM REQUIREDFOR MAGNETIC LOCATION.

30" SQ CAST IRON LOCKINGRING AND COVER

SEE STDNO. 602

CEMENT CONCCLASS 4000

12" PVC SLEEVE

MECHANICAL PLUG

FIBER JOINTPACKING


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

MODEL SITE PLAN3 ACRES AND SMALLER T400

DITCHEXISTING

SEDIMENT TRAP

INTERCEPTOR DITCHW/ROCK CHECK DAMSSEE STD DETAIL T405

EOPEXISTING

1

2

3

1 CONSTRUCTION ENTRANCE - SEE STD DETAIL T404

SEDIMENT BASIN OUTLET STRUCTURE AND DAM - SEE STD DETAIL T401

IN CRITICAL AREAS, INSTALL A SILT FENCE IN THE SEDIMENT BASIN.

2

3

4

4 CLEARING LIMITS PRIOR TO ANY SITE CLEARING OR GRADING, THOSE AREAS THAT ARE TO REMAIN UNDISTURBED DURING PROJECT CONSTRUCTION SHALL BE DELINEATED.

MEASURES TO USE: IN MOST CIRCUMSTANCES, MARK CLEARING LIMITS BY DELINEATING THE SITE WITH A CONTINUOUS LENGTH OF ORANGE barrier fence.

OF

CE

IS

ST

SF

IS

LABELIS

ST

CE

SF

OP

CATCH BASIN

IDENTIFICATIONINTERCEPTOR SWALE

SEDIMENT TRAP

STABILIZEDCONSTRUCTIONENTRANCE

SILT FENCE

OP OUTLET PROTECTION

OF ORANGE BARRIERFENCE

OF

OF

SF

SF

DETAIL NOTES:

OF

OF


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SEDIMENT TRAPEARTH BERM T401

NOTES:

PROFILE

WATER LEVEL

SEDIMENT TRAP

PLAN VIEW

COMPACTED EARTH DAM

EMERGENCY SPILLWAY

ENTIRE LENGTH.RIP-RAP OVER FILTER FABRIC

2' MINORIGINALGRADE DURING STORM

1

DETAIL NOTES:

RISER PIPE - SEE STD DETAIL T402

CB

12" min

CONNECT TO CITYSTORM DRAIN SYSTEM

RISER PIPE

21

31

1

TOP OFBERM

2" DEPRESSIONFOR EMERGENCYSPILLWAY

(BERM)

2' MIN.WIDTH

LEVEL BOTTOM

GRAVEL RISER CONE

1. SHAPE OF SEDIMENTATION POND MAY VARY TO FIT DRAINAGE AREA AND TERRAIN. MODIFY AS NECESSARY TO ENSURESATISFACTORY TRAPPING OF SEDIMENT.

2. USE THE KING COUNTY SWDM TO DETERMINE THE TRAP GEOMETRY - SEE SEC. 5.3.1

3. TO AID IN DETERMINING SEDIMENT DEPTH, ALL TRAPS SHALL HAVE A STAFF GAUGE WITH A PROMINENT MARK 1 FOOT ABOVETHE BOTTOM OF THE TRAP. CONTRACTOR SHALL RESTORE THE TRAP BACK TO ORIGINAL DEPTH AND SIZE WHEN THE SEDIMENTREACHES THIS LEVEL.

4. FOR USE ON SITES LESS THAN 3 ACRES IN SIZE.

5. TRAP MAY BE BERM OR BY PARTIAL OR COMPLETE EXCAVATION.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

RISER PIPINGELEMENT T402

12" MIN

FILTER FABRICCOVER WITHWIRE FASTENER

3" DIA. HOLES,6" O.C. IN THEUPPER 24"

ORIGINALGRADE

18" RISERPIPE

18X18X12TEE

CAP

P.V.C. SIZE FORQDEV-25 YR.STORM (12" MIN)

STORM CATCH BASIN TYPE 1

CONNECT TO CITYSTORM DRAIN SYSTEM

FILL WITH CONC.OR CRUSH SURFACEBASE COURSE TOFLOW LINE OFOUTLET PIPE

TOP OF BERM

30 HOLES MIN.

FINISHEDGRADE

(COVER TOPAND HOLES)

GRADEFINISHED

FASTENER

GRAVELRISERCONE

SECTION


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SEDIMENT PONDWITH RISER ELEMENT T403

NOTES:CROSS - SECTION

PLAN VIEW

1' MIN

POND LENGTH

RISER PIPE

INFLOW

KEY DIVIDER INTO SLOPETO PREVENT FLOWAROUND SIDES

THE POND LENGTH SHALL BE 3 TO 6 TIMES THE POND WIDTH

DISCHARGE TO CITYSTORM DRAINAGE

1' MIN

6' MIN. WIDTH

CREST OFEMERGENCY

3.5' MIN.

SPILLWAY

3

3 2

71

4

5

6

DETAIL NOTES:

SYSTEM.

CB

BERM 1' MIN.

TO CITY STORMDRAINAGE SYSTEM.

EMERGENCY OVERFLOWSPILLWAY RIP-RAPOVER FILTER FABRICENTIRE LENGTH.

2' MIN.

1. TO AIDE IN DETERMINING SEDIMENT DEPTH, ONE-FOOT INTERVALS SHALL BE PROMINENTLY MARKED ONTHE RISER. THE CONTRACTOR SHALL REMOVE THE SEDIMENT WHEN IT REACHES 1 FOOT IN DEPTH.

2. ANY DAMAGE TO THE POND EMBANKMENTS OR SLOPES SHALL BE REPAIRED.

3. DESIGN PER SECTION 5.3.1 OF THE KING COUNTY SWDM.

1 CORRUGATED METAL RISER (PRINCIPAL SPILLWAY) OPEN AT TOP WITH CONE TRASH RACK.

2 DEWATERING DEVICE - PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER MINIMUM 2" LARGER THAN DEWATERING ORIFICE.TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294. CONNECTION TO DEWATERING ORIFICE WATER TIGHT COUPLING.

3 WIRE BACKED SILT FENCE, STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER.

4 DEWATERING ORIFICE - SCHEDULE 40 STEEL STUB MIN. TACK WELDED TO THE RISER PIPE, DIAMETER AS PER CALCULATIONS.

5 CONCRETE BASE - 18" HIGH (MIN.) BY 2X RISER DIA. (MIN.) WIDE ALTERNATIVELY, METAL STAKES AND WIRE MAY BE USED TO PREVENTFLOTATION.

6 EMBANKMENT COMPACTED 95%. PERVIOUS MATERIALS SUCH AS GRAVEL OR CLEAN SAND SHALL NOT BE USED.

7 PROVIDE ADEQUATE STRAPPING.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailSTABILIZED

CONSTRUCTIONENTRANCE

T404

DETAIL NOTES:

NOTES:

WITH APPROVAL OF THE DIRECTOR ON A CASE BY CASE BASIS, WHERE PHYSICAL SITE CONDITIONSTRACKED INTO THE PUBLIC RIGHT-OF-WAY. ALTERNATE CONSTRUCTION ENTRANCES WILL BE ALLOWED

ATB DRIVEWAY RAMP, OR SITE ACCESS ROAD 20' WIDE MIN. SEE TABLE ABOVE FOR REQUIRED LENGTH.

THE MINIMUM LENGTH SHALL BE LENGTHENED AS NECESSARY TO ENSURE MATERIAL IS NOT

4" TO 8" QUARRY SPALLS AS SPECIFIED IN SECTION 9-13.6 OF THE WSDOT/APWA STANDARD SPECIFICATIONS.

AND SIZE DICTATE

3

2

1

SECTION

3

(SEE NOTE 2)

PLAN VIEW

1

3

GEOTEXTILE FABRICUNDER QUARRY SPALLS

PROVIDE FULL WIDTH OFINGRESS/EGRESS AREA

PROJECTSIZE

LENGTH OFQUARRY SPALLS ATB

< 1/4 ACRE< 1 ACRE< 3 ACRE> 3 ACRE

3050

100100

000

50

1. SURFACE WATER - ALL SURFACE WATER FLOWING OR DIVERTED TOWARD CONSTRUCTION ENTRANCESSHALL BE PIPED ACROSS THE ENTRANCE IF PIPING IS IMPRACTICAL, A MOUNTABLE BERM WITH5:1 SLOPES WILL BE PERMITTED.

2. MAINTENANCE - THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKINGOR FLOWING OF SEDIMENT ONTO PUBLIC RIGHT-OF-WAY. THIS MAY REQUIRE PERIODIC TOP DRESSINGWITH ADDITIONAL STONE AS CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY MEASURESUSED TO TRAP SEDIMENT. ALL SEDIMENT SPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLIC RIGHT-OF-WAY MUST BE REMOVED IMMEDIATELY.

3. WHEELS SHALL BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTRANCE ONTO PUBLIC RIGHT-OF-WAY. WHEN WASHING IS USED, IT SHALL BE DONE ON AN AREA STABILIZED WITHSTONE AND WHICH DRAINS INTO AN APPROVED SEDIMENT TRAPPING DEVICE.

4. PERIODIC INSPECTION AND NEEDED MAINTENANCE SHALL BE PROVIDED AFTER EACH RAIN.

x x x x x x x

x xxxxxx

4

INSTALL ORANGE BARRIER FENCE TO DIRECT TRAFFIC ONTO CONSTRUCTION ENTRANCE4

1

R/W

EX. ROAD

SEE SECTION

5.4.4.2B.S.W.D.M.

VARIES

6"TYPICAL

5. TRUCK TIRE WASH REQUIRED


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard DetailINTERCEPTOR DITCH

WITH ROCK CHECKDAMS

T405

SEE TABLE A

SEE TABLE A

12"

LEVEL LINEX Y

2

ROCK CHECK 1DAM - (TYP)

DITCH PROFILE

DITCH PLAN

SECTION A-A

NOTE:

TOP OF CHECK DAM EX. GRADE

SEDIMENT TRAPUP STREAM

1 DAM SPACING

2 SEDIMENT TRAP LENGTH

3 LINE THE BOTTOM OF THE SWALE WITH 4" C.S.T.C

3

3

13

13

1

SLOPEFT/FT

10

10

5

4

3

2

05

10

15

20

25

50

1001:100

1:50

1:25

1:20

1:15

1:10

1:5

TABLE A

21

CRUSH SURFACE TO COURSE.

DETAIL NOTES:

FLOW LINE

1. SUMP BEHIND ROCK CHECK DAM SHALL BE INSPECTED DAILY, AND CLEANEDWHEN COLLECTED DEBRIS EXCEEDS 1/2 OF ITS DEPTH.


City of Bothell

Revision Date

Feb, 2012

Approved By:City Engineer

Standard Detail

PIPESLOPE DRAIN T406

(TYP TOP AND BOTTOM)STRAPS AND ANCHOR PINSEND SECTION WITH HOLDINGHIGH DENSITY POLYETHYLENESTANDARD METAL OR

SWALE/DIKEINTERCEPTOR

EXISTING GROUND

GRADED SLOPEEXISTING OR

THAN 20%.

INTERCEPTOR SWALE/DIKE(OR APPROVED EQUAL)

FOR SLOPE GREATER SLOPE ANCHOR'S REQUIRED

FLEXIBLE DRAIN PIPE

PLAN VIEW

AS REQUIREDANCHOR PINS

SECTION A-A

STRAPSHOLDING

USE STD DETAILS461 OR 462 OR 463FOR PIPE OUTFALL

ISOMETRIC


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

STORMINLET PROTECTION T408

GRATESTANDARD STRENGTHFILTER FABRIC

CATCH BASIN

FILTER FABRIC PROTECTION

CATCH BASINGRATE

OVERFLOW

POROUS BOTTOM

SOLIDWALLS

FILTER MEDIAFOR DEWATERING

CATCH BASIN INSERTNOTES:

6" TYP. 6" TYP.

NOTE: ONLY TO BE USED WHERE PONDING OF WATER ABOVE THE CATCH BASIN WILL NOT CAUSETRAFFIC PROBLEMS AND WHERE OVERFLOW WILL NOT RESULT IN EROSION OF SLOPES.

1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PROTECTION SHALL BE REMOVEDIMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED WITH WATER, AND ALL SEDIMENT MUST BE DISPOSEDOF AS FILL ON-SITE OR HAULED OFF-SITE.

2. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLEDONE-THIRD OF THE AVAILABLE STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED ORREPLACED AT LEAST MONTHLY.

3. REGULAR MAINTENANCE IS CRITICAL FOR BOTH FORMS OF CATCH BASIN PROTECTION. UNLIKE MANYFORMS OF PROTECTION THAT FAIL GRADUALLY, CATCH BASIN PROTECTION WILL FAIL SUDDENLY ANDCOMPLETELY IF NOT MAINTAINED PROPERLY.

4. ALL CATCH BASIN PROTECTION SHALL BE REMOVED WHEN WORK IS COMPLETE.

NOTE: THIS DETAIL IS ONLY SCHEMATIC. ANY INSERT IS ALLOWED THAT HAS A MIN. 0.5 C.F. OF STORAGE. THEMEANS TO DEWATER THE STORED SEDIMENT, AN OVERFLOW, AND CAN BE EASILY MAINTAINED.


City of Bothell

Revision Date

Feb, 2012

Approved By:

City Engineer

Standard Detail

SILT FENCE T409

FILTER FABRIC MATERIAL

EQUIVALENTMIRAFI 100X OR

ELEVATION

SECTION A-A

(TYPICAL)WIRE RINGS 2"x4"x14 GAUGE

WELDED WIRE FABRICOR EQUAL

WIRE FABRIC

FILTER FABRIC

NATIVE BACKFILL

DISTURBED SIDENEWLY GRADED OR

SLOPE

MATERIAL

8"

HAS BEEN INSTALLED, CONSTRUCT BERM AND TRENCH.INSTALL THE SILT FENCE FIRST. AFTER THE SILT FENCE

SILT FENCE2' 2'

2 X 4 WOODPOSTS. 6' O.C.

STEEL OR

MATERIAL

NOTE:

standard details 400 storm drainage

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