Standard Details 400 Storm Drainage
STANDARD DETAILS 400 STORM DRAINAGE
410 ...... Yard Drain 459 ...... Reserved 411 ...... Reserved 460 ...... Swale Biofiltration Typical Section 412 ...... Catch Basin Type 1 461 ...... Pipe Outfall Quarry Spalls 413 ...... Catch Basin Type 1L 462 ...... Pipe Outfall Gabion Type 414 ...... Catch Basin Type 2 463 ...... Pipe Outfall Mortared Quarry Spall Mat 415 ...... Drop Inlet Type 1 464 ...... French Drain Under Road 416 ...... Drop Inlet Type 2 465 ...... Pipe and Section Trash Rack 417 ...... Reserved 466 ...... Cone Trash Rack 418 ...... Reserved 467 ...... Pipe Anchors 419 ...... Reserved 468 ...... Flow Splitter Type A 420 ...... Catch Basin Installation 469 ...... Flow Splitter Type B 421 ...... Thru-Curb Inlet Frame and Grate with Vertical 470 ...... Paved Areas and Area within the Right-of-Way Curb Installation 471 ...... Unpaved Areas Outside of the Right-of-Way 422 ...... Frame and Grate (20”X24”) 472 ...... Reserved 422A .... Frame and Grate (18”X24”) 473 ...... Reserved 423 ...... Solid Cover Rectangle 474 ...... Reserved 424 ...... Vaned-Grate Rectangle 475 ...... Reserved 425 ...... Open Curb Face Frame and Grate Detail 476 ...... Reserved 426 ...... Storm Drain Locking Manhole Frame and 477 ...... Reserved Cover 478 ...... Reserved 427 ...... Frame and Cover Adjustment 479 ...... Reserved 428 ...... Reserved 480 ...... Steep Slope Sign Installation 429 ...... Reserved 481 ...... Wetland Sign Installation 430 ...... Floatable Material Separator 6” or 8” Pipe 482 ...... Stream Sign Installation 431 ...... Floatable Material Separator 12” and Larger 483 ...... Reserved 432 ...... Reserved 484 ...... Reserved 433 ...... Reserved 485 ...... Reserved 434 ...... Reserved 486 ...... Reserved 435 ...... Oil Water Separator API Vault 487 ...... Reserved 436 ...... Oil Water Separator Coalescing Plate-Sample 488 ...... Reserved 437 ...... Oil Water Separator 489 ...... Reserved 438 ...... Reserved 490 ...... Reserved 439 ...... Control Structure 54” Diameter 491 ...... Reserved 440 ...... Control Structure 72” Dia. or Larger 492 ...... Reserved 441 ...... Restrictor Riser 493 ...... Reserved 442 ...... Reserved 494 ...... Reserved 443 ...... Secondary Orifice Detail 495 ...... Outfall to Ditch Layout Small Projects 444 ...... Shear Gate 496 ...... Outfall to Ditch Detail Small Projects 445 ...... Detention Pond with Biofiltration Swale 497 ...... Footing Drain 446 ...... Reserved 498 ...... Storm Pipe Cleanout 447 ...... Reserved 499 ...... Reserved 448 ...... Reserved T400..... Model Site Plan 3 Acres and Smaller 449 ...... Reserved T401..... Sediment Trap Earth Berm 450 ...... Reserved T402..... Riser Piping Element 451 ...... Reserved T403..... Sediment Pond with Riser Element 452 ...... Reserved T404..... Stabilized Construction Entrance 453 ...... Reserved T405..... Interceptor Ditch with Rock Check Dams 454 ...... Reserved T406..... Pipe Slope Drain 455 ...... Reserved T407..... Reserved 456 ...... Detention Pond Typical Sections T408..... Storm Inlet Protection 457 ...... Reserved T409..... Silt Fence 458 ...... Reserved 8 6" SD
7
10' PRIVATE 10' SD STUB (TYP.) SD EASEMENT
EASEMENT LINE 10' PRIVATE SD EASEMENT
SIDEWALK AND CURB
STREET CATCH BASIN
YARD DRAIN W/SOLID COVER
YARD DRAIN (TYP.) STUB OUT FOR ROOF AND FOOTING DRAIN CONNECTIONS (TYP.)
R.O.W.
LOT LINE (TYP.) NOTE:
SPECIAL CAST YARD DRAIN MAY BE REQUIRED FOR MULTIPLE PIPE CONNECTIONS. DETAIL NOTES: 4 1 YARD DRAINS TO BE CONSTRUCTED FROM CONCRETE PIPE, IN ACCORDANCE WITH ASTM C 14 UNLESS OTHERWISE SHOWN ON THE PLANS OR NOTED IN THE SPECIFICATIONS. 2 CUTOUT HOLE SIZE EQUAL TO OUTLET PIPE OUTSIDE DIAMETER PLUS YARD DRAIN WALL THICKNESS.
3 CONNECTION TO OUTLET PIPE TO BE MORTARED AND MADE FLUSH WITH INSIDE OF THE YARD DRAIN WALL. 3 2 4 CAST IRON BELL GRATE. FITS INTO BELL RECESS AND EXTENDS FLUSH WITH FACE OF BELL. THE GRATE SHALL HAVE SLOTS (HOLES) THAT CONSITUTE 1 50 PERCENT OPEN AREA FOR DRAINAGE. INLET BELL SURFACE SHALL BE FINISHED TO ASSURE NON- ROCKING FIT WITH ANY COVER. 6 5 CONCRETE 4 IN. MIN.
6 12" OR 18".
5 7 CONNECT TO CITY OWNED MAINTAINED SD SYSTEM IN THE STREET. 8 UP TO 5 CONNECTIONS PER SERVICE LINE.
Standard City of Bothell Detail Approved By: YARD DRAIN 410 PUBLIC WORKS DEPARTMENT City Engineer Revision Date Feb, 2012 FRAME AND GRATE, PER STD DETAILS, 422 OR 425 OR FRAME W/SOLID COVER. NOTES:
1. AS AN ACCEPTABLE ALTERNATE TO REBAR, WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED. 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 2 1/2" MAXIMUM.
3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE PIPE INVERT SHALL BE 5'.
4. FRAME AND GRATE MAY BE INSTALLED WITH FLANGE DOWN OR CAST INTO ADJUSTMENT SECTION.
5. THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR AND THE WALLS MAY BE SLOPED AT A RATE OF 1:24 OR STEEPER.
6. OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE UNIT. SEE NOTE #7 7. THE 6" ADJUSTMENT SECTION SHALL HAVE ONE #3 BAR CENTERED. THE 12" ADJUSTMENT SECTION SHALL HAVE TWO #3 BARS EQUALY SPACED. RECTANGULAR ADJUSTMENT SECTION 8. GROUT ALL JOINTS INSIDE AND OUTSIDE.
#3 BAR EACH CORNER
#3 BAR EACH SIDE
#3 BAR EACH WAY
PRECAST BASE SECTION
CATCH BASIN AND ALL REINFORCING STEEL TO CONFORM TO WSDOT STANDARD PLAN B-5.20-01
Standard City of Bothell Detail Approved By: CATCH BASIN 412 PUBLIC WORKS DEPARTMENT TYPE 1 City Engineer Revision Date Feb, 2012 FRAME AND GRATE, OR FRAME & SOLID COVER. NOTES:
1. AS AN ACCEPTABLE ALTERNATE TO REBAR, WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED. 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 2 1/2" MAXIMUM.
3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE PIPE INVERT SHALL BE 5'.
4. FRAME AND GRATE MAY BE INSTALLED WITH FLANGE DOWN OR CAST INTO ADJUSTMENT ONE #3 BAR SECTION. HOOP FOR 6" 6" OR 12" TWO #3 BAR 5. THE PRECAST BASE SECTION MAY HAVE HOOPS FOR 12" A ROUNDED FLOOR AND THE WALLS MAY BE SLOPED AT A RATE OF 1:24 OR STEEPER. RECTANGULAR ADJUSTMENT SECTION 6. OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE UNIT.
7. THE 6" ADJUSTMENT SECTION SHALL HAVE ONE #3 BAR CENTERED. THE 12" ADJUSTMENT SECTION SHALL HAVE TWO #3 BAR EQUALY SPACED.
8. GROUT ALL JOINTS INSIDE AND OUTSIDE.
REDUCING SECTION
TW0 #3 BAR HOOPS
#3 BAR EACH CORNER
#3 BAR EACH SIDE
#3 BAR EACH WAY
CATCH BASIN AND ALL REINFORCING STEEL PRECAST BASE SECTION TO CONFORM TO WSDOT STANDARD PLAN B-5.40-01
Standard City of Bothell Detail Approved By: CATCH BASIN 413 PUBLIC WORKS DEPARTMENT TYPE 1L City Engineer Revision Date Feb, 2012 CATCH BASIN FRAME AND GRATE OR MANHOLE RING AND COVER RECTANGULAR ADJUSTMENT SECTION OR CIRCULAR ADJUSTMENT SECTION 16" MAX 4" MIN
FLAT SLAB TOP
48", 54", 60", 72", OR 96"
MORTAR (TYP) STEPS SEE STD DETAIL 643
12" (TYP)
1" MIN 2 1/2" MAX 12" MAX MORTAR REINFORCING FILLET STEEL 12" 6" 6" NOTES:
SEPARATE CAST IN PRECAST BASE WITH 1. NO STEPS ARE REQUIRED PLACE BASE INTEGRAL RISER WHEN HEIGHT IS 4' OR LESS. 2. THE BOTTOM OF THE PRECAST CATCH BASIN MAY GRAVEL BACKFILL FOR BE ROUNDED. PIPE ZONE BEDDING "0" RING 3. FRAME AND GRATE MAY 6" BE INSTALLED WITH FLANGE 12" DOWN OR CAST INTO ADJUSTMENT SECTION.
SEPARATE PRECAST BASE 4. KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 2 1/2" MAXIMUM.
CATCH BASIN DIMENSION TABLE 5. GROUT ALL JOINTS INSIDE AND OUTSIDE. MINIMUM BASE REINFORCING STEEL BASE 2 WALL BASE DISTANCE IN /FT IN EACH DIRECTION DIA THICKNESS BETWEEN THICKNESS THICKNESS SIZE KNOCKOUTS INTEGRAL BASE SEPARATE BASE 48" 4" 6" 36" 8" 0.15 0.23 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
Standard City of Bothell Detail Approved By: CATCH BASIN 414 PUBLIC WORKS DEPARTMENT TYPE 2 City Engineer Revision Date Feb, 2012 82" 36"
6" 12" 12" 6"
4"
4"
C L 4" x 3" x 1/2" L Ditch A A 1 1/2" x 2'-11 1/4" ELEVATION GRATE SUPPORT-TWO REQ'D. PER GRATE
1/4" 12" 1/4" (TYP)
PLAN VIEW 3" 40" (NOM) PLAN VIEW
6" (MIN)
2" TYP 1"
END VIEW 39" SECTION B-B SECTION A-A 2' MIN. 1' MIN. MATERIAL SPECIFICATIONS 10 DITCH 1 LANE PRECAST CONCRETE CLASS B CAST-IN-PLACE CONCRETE CLASS C GRATE SUPPORT STEEL ASTM A36 DIKE INSTALLATION NOTES: FOR PREFERRED SLOPE
1. ANGLES SHALL BE SET SO THAT EA. BEARING BAR ON THE 8. AMOUNT, TYPE AND GRADE OF REINFORCING STEEL IS THE GRATE SHALL HAVE FULL SEATING AT BOTH ENDS. THE RESPONSIBILITY OF THE MANUFACTURER. FINISHED TOP OF CONC. SHALL BE EVEN W/ GRATE SURFACE. THE MANUFACTURER IS RESPONSIBLE FOR THE STRUCTURE UNTIL FINAL ACCEPTANCE IN PLACE WITH ALL REQUIRED 2. TOP OF INLET SHALL BE PLACED AT GROUND LEVEL TO KNOCKOUTS REMOVED. FINAL BRIDGE CONSTRUCTION IN PRESENT AN UNOBSTRUCTED DITCH OR MEDIAN SECTION. ADDITION, STRUCTURES MAY BE REJECTED BECAUSE OF 3. BEVEL OR ROUND EXPOSED CONCRETE EDGES 1/2". ANY OF THE FOLLOWING: A) FRACTURES OR CRACKS THAT EXTEND THROUGH THE 4. PIPE MAY ENTER THROUGH THE KNOCKOUTS AT ANY ENTIRE WALL FROM ANY OUTSIDE SURFACE TO THE REASONABLE ANGLE PROVIDED THE OUTSIDE OF THE PIPE KNOCKOUT OPENING. CAN BE CONTAINED WITHIN THE KNOCKOUT PROVIDED. B) ANY CONTINUOUS CRACK HAVING A SURFACE WIDTH 5. THE GRADE LINE OF THE LOWEST INLET PIPE SHALL ENTER OF 0.01" OR MORE AND EXTENDING A LENGTH OF THE STRUCTURE AT AN ELEV. EQUAL TO OR HIGHER THAN 12" OR MORE. THE GRADE LINE OF THE OUTLET PIPE. 9. GRATE SUPPORTS SHALL BE GALVANIZED AFTER FABRI- 6. PRECAST INLET SHALL BE MARKED WITH MANUFACTURER'S CATION BY ONE OF THE FOLLOWING METHODS: IDENTIFICATION INSIDE THE STRUCTURE IN SOME READILY A) HOT DIPPED 2-OZ ZINC/SQ FT (MIN). ACCESSIBLE LOCATION. B) HOT-SPRAYED (PLASMA FLAME APPLIED) 6-MIL 7. INSIDE WALL TAPER FOR FORM REMOVAL SHALL NOT RESULT (MIN) THICKNESS ZINC COATING. IN ANY WALL SECTION THINNER THAN 6" EXCEPT IN PIPE KNOCKOUT AREA. 10. THE STANDARD DROP INLET GRATES SHALL BE FURNISHED AND INSTALLED AS INDICATED ON STD DETAIL 416.
Standard City of Bothell Detail Approved By: DROP INLET 415 PUBLIC WORKS DEPARTMENT TYPE 1 City Engineer Revision Date Feb, 2012 NOTES:
1. ANGLES SHALL BE SET SO THAT EACH BEARING BAR OF PREFABICATED GRATE SHALL HAVE FULL BEARING ON BOTH ENDS. THE FINISHED TOP OF CONCRETE SHALL BE EVEN WITH THE GRATE SURFACE.
2. TOP OF INLET SHALL BE PLACED AT GROUND LEVEL TO PRESENT ANUNOBSTRUCTED DITCH OR MEDIAN SECTION. CL Ditch 3. ALL EXPOSED CONCRETE SHALL BE FINISHED WITH A 1/2" INCH RADIUS.
4. THE GRADE LINE OF THE TOP INSIDE OF ANY PIPE SHALL ENTER AT A POINT NO LOWER THAN THE GRADE LINE OF THE TOP INSIDE OF THE OUTLET PIPE.
5. CULVERT OR SEWER PIPES MAY BE SET AT ANY ANGLE TO THE CENTERLINE OF THE HIGHWAY AND MAY ENTER THE INLET ON ANY SIDE AT ANY REASONABLE ANGLE, PROVIDED THE OUTSIDE OF THE PIPE CAN BE CONTAINED BETWEEN TWO OPPOSITE WALLS.
VARIABLE 1'-0" MAX. 6. GRADE B WILL BE USED ONLY WHEN SPECIFIED IN THE CONTRACT SEE DETAIL A SPECIAL PROVISIONS.
3" 6 1/4" 6 1/4" GRATE GRATE 1/4"
1 1/2" L4"x3"x3/8" (2 REQ'D.) 4"
1/2"x4" 1" STUD OR 5 1/2"x1/4" INVERT OF ANCHORS OUTLET PIPE SITTING (6 REQ'D.) 7" 7" BEAM 6" (TYP.) SECTION C-C DETAIL A CLASS C CONCRETE BEARING BARS 3 1/2" X 3/8" 3'-10 3/4" 4 BEARING BARS 3 1/2" X 3/4"
11 SPACES @ 4"x3'-8" 11 SPACES @ 4"x3'-8" 1 3/8" 3'-10 3/4" 2 OUTER BEARING BARS -3 1/2"X3/8"
4 3/4" TYP. CROSS BARS 3/8" ROUND OR CROSS BARS 3/8" ROUND OR A RECTANGULAR OR HEXAGONAL A RECTANGULAR OR HEXAGONAL BAR OF EQUIVALENT AREA BAR OF EQUIVALENT AREA 4" GRATE B 1 3/8" GRATE B TYP. TYP. (WEIGHT APPROX. 215 lbs.) (WEIGHT APPROX. 215 lbs.)
Standard City of Bothell Detail Approved By: DROP INLET 416 PUBLIC WORKS DEPARTMENT TYPE 2 City Engineer Revision Date Feb, 2012 CURB AND GUTTER
GRATE INSTALLED SET CASTING FLUSH FLUSH WITH PAVEMENT WITH CONC. GUTTER
1-1/2" MIN. A/C PATCH
6" MIN. P.C.C. 3-DAY MIX
ADJUSTMENT RING
NOTES: DRAIN PIPE 1. WHEN LAYING CURB, LEAVE 6' OUT FOR PLACING C.B., FRAME AND GRATE. SECTION A-A 2. PLACE CURB AROUND C.B. USING CEMENT CONCRETE 3-DAY MIX. FULL DEPTH EXPANSION JOINT, 3. AN APPROVED MATERIAL WHICH WILL TYPICAL PREVENT BONDING OF THE CURB TO FRAME, GRATE OR C.B. SHALL BE USED. GUTTER LINE 12" 4. GROUT ALL JOINTS INSIDE AND OUTSIDE.
A A
PLAN VIEW
Standard City of Bothell Detail Approved By: CATCH BASIN 420 PUBLIC WORKS DEPARTMENT INSTALLATION City Engineer Revision Date Feb, 2012 1/2" WIDE FULL DEPTH EXPANSION JOINT MATERIAL. A
SIDEWALK OR PLANTING STRIP
B B CURB CONCRETE AND GUTTER
1' 1'
2' (TYP.) A ROADWAY SURFACE
PARTIAL PLAN VIEW
1/2" WIDE FULL DEPTH EXPANSION JOINT MATERIAL.
INLET WITH SIDEWALK INLET WITH PLANTER SECTION A-A
1/2" WIDE FULL DEPTH EXPANSION JOINT MATERIAL. 2' FROM CENTER OF STRUCTURE
FLOW
NOTE:
1. SET TO GRADE AND CONSTRUCT ROAD AND GUTTER TO BE FLUSH WITH FRAME. SECTION B-B 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.
THRU-CURB INLET Standard City of Bothell Detail Approved By: FRAME AND GRATE WITH VERTICAL CURB 421 PUBLIC WORKS DEPARTMENT City Engineer INSTALLATION Revision Date Feb, 2012 1 5/8" 1" 1/8" 1 C
FOUNDARY NAME 1 5/8" CURB 4 1/2"
B B R=26" 1'-8" 1 5/8"
2 1/2" 3/4" 3/4" 1" 1/8" 3 1/4"
C SECTION A-A 4 SECTION C-C 1 3/4"
2'-0" 2'-5 1/4"
2'-2"
2'-0 1/4" 3/4" R=1/8" OR
1 1/2" CHAMFER (TYP) 2'-0"
1/8" 1/2" 1'-10 1/2"
2 1 3/4"
SECTION B-B
A A 1'-8" 1'-10" 4 2'-1 1/4" 1'-8 1/4" 1'-6 1/2"
DETAIL NOTES:
1 FOUNDARY NAME, THIS SIDE TO CURB W/ARROW AND CITY OF BOTHELL (DI) FOR DUCTILE IRON SHALL BE EMBOSSED ON TOP OF THE GRATE WITH 1/16" RECESSED LETTERS.
2 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.
3 MATERIAL USED SHALL BE DUCTILE IRON PER ASTM-A536 GRADE 80-55-06. ALL CASTINGS SHALL HAVE A BITUMINOUS COATING.
4 WHEN LOCKING GRATE IS REQUIRED, HOLES WILL BE PROVIDED IN THE CASTING TO ALLOW FOR TWO 5/8" DIA. STAINLESS STEEL SOCKET HEAD CAP SCREWS SO THAT NO PART OF HEAD PROTRUDES ABOVE TOP OF CASTING.
Standard City of Bothell Detail Approved By: FRAME AND GRATE 422 PUBLIC WORKS DEPARTMENT 20"X24" City Engineer Revision Date Feb, 2012 1 5/8" 1" 1/8" 1 C
FOUNDARY NAME 1 5/8" CURB 4 1/2"
B B R=26" 1'-6" 1 5/8"
2 1/2" 3/4" 3/4" 1" 1/8" 3 1/4"
C SECTION A-A 4 SECTION C-C 1 3/4"
2'-0" 2'-5 1/4"
2'-2"
2'-0 1/4" 3/4" R=1/8" OR
1 1/2" CHAMFER (TYP) 2'-0"
1/8" 1/2" 1'-10 1/2"
2 1 3/4"
SECTION B-B
A A
1'-8" 1'-6" 4 1'-6 1/4" 1'-4 1/2" 1'-19 1/4"
DETAIL NOTES:
1 FOUNDARY NAME, THIS SIDE TO CURB W/ARROW AND CITY OF BOTHELL (DI) FOR DUCTILE IRON SHALL BE EMBOSSED ON TOP OF THE GRATE WITH 1/16" RECESSED LETTERS.
2 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.
3 MATERIAL USED SHALL BE DUCTILE IRON PER ASTM-A536 GRADE 80-55-06. ALL CASTINGS SHALL HAVE A BITUMINOUS COATING.
4 WHEN LOCKING GRATE IS REQUIRED, HOLES WILL BE PROVIDED IN THE CASTING TO ALLOW FOR TWO 5/8" DIA. STAINLESS STEEL SOCKET HEAD CAP SCREWS SO THAT NO PART OF HEAD PROTRUDES ABOVE TOP OF CASTING.
Standard City of Bothell Detail Approved By: FRAME AND GRATE 422A PUBLIC WORKS DEPARTMENT 18"X24" City Engineer Revision Date Feb, 2012 24" 26-1/4"R B
C C 4 3-1/2" MIN.
A A
5
3
2
PLAN VIEW B SECTION B-B
39-1/8"R
1 1-1/2"MIN 1-1/2" CLEAR SECTION A-A 5 1/4" DETAIL NOTES:
1 MATERIALS USED SHALL BE DUCTILE IRON PER ASTM-A536, GRADE 80-55-06, WITH BITUMINOUS COATING.
2 WHEN LOCKING GRATE REQUIRED HOLES WILL BE 5 PROVIDED IN CASTING TO ALLOW FOR TWO 8" DIA. STAINLESS STEEL, SOCKET HEAD CAP SCREWS, NO PART OF SCREW WILL PROTRUDE ABOVE GRATE.
3 GRATE SEATING: 8 INTEGRALLY CAST PADS.
4 CAST POCKET LIFT HANDLE 3 5 NONSKID DIAMOND PATTERN APPROX. SECTION C-C 1 1 2- 2" x 1" x 8" HIGH
Standard City of Bothell Detail Approved By: SOLID COVER 423 PUBLIC WORKS DEPARTMENT RECTANGLE City Engineer Revision Date Feb, 2012 DIRECTION OF FLOW 1-3/8"
2 1-5/8"
B B
1/8"
1-5/8" PLAN VIEW SECTION A-A
24"
1-1/4" 2-1/2" 2-3/4" 2-3/4" 2-3/4" 2-3/4" 2-3/4" 2-3/4" 2-3/4" 1" DETAIL NOTES:
1 MATERIAL USED SHALL BE DUCTILE IRON PER ASTM-A536, GRADE 80-55-06, WITH BITUMINOUS COATING. 1/8"
2-3/4" 2-3/4" 2 WHEN LOCKING GRATE REQUIRED SECTION B-B 1 HOLES WILL BE PROVIDED IN CASTING TO ALLOW FOR TWO 5/8" DIA STAINLESS STEEL, C SOCKET HEAD CAP SCREWS. NO 3-1/2"R 1/2" MIN. PART OF SCREW WILL PROTRUDE (TYP.) ABOVE GRATE.
3/4" MAX. 3 USE ON SLOPES GREATER THAN 6%.
1-5/8" 5/16"R C SECTION C-C VANE
Standard City of Bothell Detail Approved By: VANED-GRATE 424 PUBLIC WORKS DEPARTMENT RECTANGLE City Engineer Revision Date Feb, 2012 28" 7-7/8" B
2-1/8"
4"
A A
DRILL AND TAP TWO B 5/8" 5/8"-11 NC HOLES LEVELING PAD THRU FRAME. PLAN VIEW 7-1/8"x3/4"x 2-1/4" SECTION B-B HOOD ATTACHES AS SHOWN
3/4"
MIN. DRAFT ON THIS SIDE 1-9/16" 1-1/2"
20" 3/4" 28" 6" SECTION A-A 5" SEE NOTE 3 TOP OF CURB
3/4" 1"R
(2) 1" DIA. HOLES, FOR 3/4" BOLT, WASHER, AND NUT. (SEE NOTE 4) C C SECTION C-C NOTES:
1. EST. 365# USE CAST GRATE IRON ASTM A 48 CL.30. 2. USE VANED GRATE IN DUCTILE IRON AS SHOWN ON STD DETAIL 424. 3. MAKE 3/16" NON-SKID DIAMOND PATTERN ON TOP SURFACE. HOOD DETAIL 4. BOLT, WASHER, AND NUT SHALL BE GALV. OR CORROSION RESISTANT.
Standard City of Bothell OPEN CURB Detail Approved By: FACE FRAME AND 425 PUBLIC WORKS DEPARTMENT City Engineer GRATE DETAIL Revision Date Feb, 2012 A
COVER SHALL HAVE THE WORD "STORM"
24" DIA. SECTION A-A IN RAISED LETTERS s T O R M
NOTES:
1. OLYMPIC FOUNDARY MH38 OR EAST JORDAN ERGO 001043L01 FRAME AND HINGED COVER. TOP OF COVER 2. COVER AND FRAME SHALL BE MANUFACTURED FROM DUCTILE IRON MEETS ASSHTO H20 OR APPROVED EQUAL. 3. CITY OF BOTHELL LOGO NOT REQUIRED. 4. LID MUST BE COVERED WITH TAR PAPER BEFORE OVERLAY. 5. GASKET CAN BE REPLACED; USED ONLY ORIGINAL REXUS GASKET , AVAILABLE THROUGH AUTHORIZED DEALERS. 6. VERIFIED SLOTTED FRAMES ARE THOROUGHLY FILLED WITH MORTAR FOR EFFICIENT INTERACTION WITH IRON AND STRUCTURE. INSTALL FRAME AS TO 7. VERIFY GASKET IS PROPERLY CLAMPED ON ITS CENTER HINGE OVER FRAME GROOVE ALONG ITS ENTIRE LENGTH. CENTER OF LADDER 33" DIA.
FRAME PLAN
Standard City of Bothell STORM DRAIN Detail Approved By: LOCKING MANHOLE 426 PUBLIC WORKS DEPARTMENT City Engineer FRAME AND COVER Revision Date Jun, 2015 STORM
PATCH AREA SEE NOTES 1 AND 2
PATCH PAVEMENT JOINT WITH SEALANT AR4000W.
12" OUTSIDE 12" DIA. EXISTING PAVEMENT
4" COMPACTED DEPTH CLASS B HOT MIX ASPHALT 6" MIN. CONCRETE COLLAR CLASS 3000 CONCRETE
4" MIN. COMPACTED DEPTH CRUSHED SURFACING TOP COURSE EXISTING OFFSET CONE CONCRETE MANHOLE OR TYPE 2 BLOCKS SEE CATCH BASIN NOTE 2
EXISTING TYPE 1 OR 2 CATCH BASIN
SECTION
NOTES:
1. REMOVE PAVEMENT AND BASE MATERIALS FOR A DISTANCE WHICH IS EQUAL TO THE DIAMETER OF THE FRAME PLUS TWO FEET. ADJUST CASTING FRAME TO NEW PAVEMENT SURFACE USING CONCRETE BLOCKS.
2. 2"x4"x8" SOLID BRICK USED FOR FINAL ADJUSTMENT TO GRADE. 6" HIGH MAX.
Standard City of Bothell Detail Approved By: FRAME AND COVER 427 PUBLIC WORKS DEPARTMENT ADJUSTMENT City Engineer Revision Date Feb, 2012 24"
6" OR 8" PVC REMOVABLE PLUG
1" VENT HOLE
6" OR 8" PVC 2' FACTORY TEE MAX.
TO PUBLIC S.D.
ADAPTOR OR PIPE JOINT
6" OR 8" PVC PIPE
GROUT
6" OR 8" PVC PIPE AS REQUIRED
TYPE 1 22" X 26" STD DETAIL 412
TYPE 1L 28" X 32" STD DETAIL 413
NOTES:
1. MAX. RIM EL. INV. EL. DIFFERANCE GREATER THAN 5' SEE STD DTL 431.
2. GROUT ALL JOINTS INSIDE AND OUTSIDE.
Standard City of Bothell FLOATABLE Detail Approved By: MATERIAL SEPARATOR 430 PUBLIC WORKS DEPARTMENT City Engineer 6" OR 8" PIPE Revision Date Feb, 2012 DETAIL NOTES: 10 GROUT 1 1 INSTALL MANHOLE ACCESS SO 9 THAT LIFT GATE IS VISIBLE THROUGH GROUT OPENING AND STEPS CLEAR INLET AND RESTRICTOR UNIT.
2 INSTALL STD DETAIL 426 WITH LOCKING COVER OR WHEN IT IS TO BE A CB SD SD THEN USE STD DETAIL 420.
3 1" VENT HOLE.
4 SEPARATOR ASSEMBLY.
8 5 POLYPROPLENE PLASTIC STEP SEE STD DETAIL 643.
PLAN VIEW 6 MIN CLEARANCE: 36"FOR OUTLETS OF 24" AND LARGER. 18" FOR OUTLETS OF 18" AND SMALLER.
7 54" TYPE 2 CB OR LARGER.
8 BAND STRAP WITH GASKET.
9 SEE PLAN AND SPECIFICATIONS FOR SIZE AND TYPE OF PIPE ENTERING AND EXITING CB.
10 SECURE SEPARATOR TO CB WITH 8 GA ALUMINUM STRAP. BOLT TO CB WALL 2 WITH STAINLESS STEEL ANCHOR BOLTS AND TACK WELD TO SEPARATOR UNIT.
11 LIFT HANDLE SEE STD DETAIL 444.
5 12 INV. EL. : SEE PLANS AND SPECIFICATIONS. 11 12 13 CLEAN OUT AT 8" DIA. MIN. 3 4 12" FOR 24" DIA. AND LARGER 9 OUTLET PIPE. 24"
14 GROUT ALL JOINTS INSIDE AND OUTSIDE. 13 8
0.10' MAX 6 9 10
7 54" MIN.
ELEVATION
Standard City of Bothell FLOATABLE MATERIAL Detail Approved By: SEPARATOR 431 PUBLIC WORKS DEPARTMENT City Engineer 12" AND LARGER Revision Date Feb, 2012 6'-0" 6'-0"
23" 21" 12" 16" 12" 24" 24" 12"
A A
2 NO. 1012P DIAMOND NO. 3030P DIAMOND PLATE INSPECTION COVERS PLATE COVER PLAN VIEW-BASE PLAN VIEW-COVER
2 No. 1012P NO. 3030P DIAMOND DIAMOND PLATE PLATE ACCESS DOOR INSPECTION COVERS
OIL/WATER SEPARATION CHAMBER
OIL RETAINER BAFFLE
FLOW DIFFUSER 8" 0 HOLE TYPICAL BAFFLE EACH END FOR INLET AND OUTLET INSPECTION AND SAMPLING TEE GRIT/SLUDGE RETAINER WEIR
23" 21" 12" 16" 4'-0" 5-1/2" 6'-0" GALVANIZED STEEL PLATE BAFFLES AND WEIR SECTION A-A SECTION B-B NOTES:
VAULT SIZE TO BE DETERMINED BY SITE SPECIFIC CHARACTERISTICS.
Standard City of Bothell Detail Approved By: OIL WATER SEPARATOR 435 PUBLIC WORKS DEPARTMENT API VAULT City Engineer Revision Date Feb, 2012 WATER OUTLET
OIL OUTLET
SLUDGE OUTLET
WATER INLET
SEPARATOR VAULT FLOW BAFFLE
SEPARATOR PLATE UNIT
Sq. Ft. of Capacity at Capacity at A B C Inlet Outlet Oil Sludge Effective 0.25 Gpm/ 0.50 Gpm/ Size Size Outlet Outlet Separation Sq.Ft. Sq.Ft. Size Size Area 33 8 GPM 16 GPM 27" 62" 30" 4" 4" 2" 2" 200 50 GPM 100 GPM 48" 72" 66" 4" 4" 2" 2" 300 75 GPM 150 GPM 56" 84" 72" 6" 6" 2" 2" 600 150 GPM 300 GPM 56" 84" 72" 8" 8" 3" 3" 1200 300 GPM 600 GPM 82" 154" 89" 10" 10" 3" 3" 2400 600 GPM 1200 GPM 92" 152" 98" 12" 12" 3" 3" 3200 800 GPM 1600 GPM 115" 187" 128" 15" 15" 4" 4" 4600 1150 GPM 2300 GPM 138" 186" 129" 18" 15" 4" 4"
NOTES:
1. $%29(&$3$&,7,(6$5(%$6('21$1*/(2),1&/,1$7,21 2. LARGER CAPACITIES AVAILABLE.
3. SEE SECTION 6.6.2 OF THE K.C.W.D.M. FOR DESIGN DETAILS.
Standard City of Bothell OIL WATER SEPARATOR Detail Approved By: COALESCING 436 PUBLIC WORKS DEPARTMENT City Engineer PLATE-SAMPLE Revision Date Feb, 2012 CATCH BASIN CATCH BASIN
SEE STD DETAILS 435 OR 436
SUGGESTED CONFIGURATION FOR BYPASS PIPING WITH 25 YEAR CAPACITY (NOT ALLOWED IF FOR SPILL CONTAINMENT ONLY).
GATE VALVE
FLOW DIVERSION STRUCTURE SEE STD DETAILS 468 OR 469.
CATCH BASIN
PROVIDE GRAVITY DRAIN TO DRAIN FACILITY IN ONE HOUR FOR MAINTENANCE.
PLAN VIEW
NOTES:
SIZED FOR 2 YEAR 24 HOUR DESIGN STORM EVENT.
Standard City of Bothell Detail Approved By: OIL WATER 437 PUBLIC WORKS DEPARTMENT SEPARATOR City Engineer Revision Date Feb, 2012 1 GROUT DETAIL NOTES:
1 INSTALL 1-18" AND 1-24" DIA. MH. ACCESS PER SD STD DWG 426, SO THAT THE LIFT GATE IS VISIBLE AND THE STEPS ARE CLEAR AND DIRECTLY ACCESSIBLE. THE OTHER IS OVER GROUT THE 12" RESTRICTOR.
2 OVERFLOW ELEVATION - SEE PLANS. 8 7 3 RESTRICTOR UNIT - SEE STD DETAIL 441.
9 4 POLYPROPLENE PLASTIC STEP SEE STD DETAIL 643.
5 MIN CLEARANCE: 36" FOR OUTLETS OF 24" AND LARGER. 18" FOR OUTLETS OF 18" AND SMALLER.
6 54" TYPE 2 CB OR LARGER.
7 BAND STRAP WITH GASKET.
8 SEE PLAN AND SPECIFICATIONS FOR SIZE AND TYPE OF PIPE ENTERING AND EXITING CB. 13 9 SECURE RESTRICTOR TO CB WITH 8 GA ALUMINUM STRAPS BOLT TO CB WALL WITH STAINLESS STEEL ANCHOR BOLTS. ONE STRAP ABOVE AND BELOW OUTLET REQUIRED, INTERMEDIATE STRAPS REQUIRED FOR RESTRICTOR RISERS GREATER THAN 12" 15 ABOVE OUTLET. 14 10 LIFT HANDLE CONNECTOR-SEE STD DETAIL 444.
11 INVERT ELEVATION: SEE PLANS AND SPECIFICATIONS. 4 6" MIN. 12 SHEAR GATE - SEE STD DETAIL 444.
2 13 FOR POND APPLICATIONS EXPAND THE STRUCTURE HIGHER AND PROVIDE A FRAMED 10 OVERFLOW DEBRIS GRATED OPENING OVERFLOW INVERTS ABOVE THE RESTRICTOR UNIT. 3 14 I.D. PLATE PER BOTHELL SURFACE WATER 8 0.10' MAX. DESIGN MANUAL CORE REQ. #1.2.6 24" 12 15 CLEAN OUT TO INSPECT STRUCTURE
5 9 11
6
ELEVATION
Standard City of Bothell Detail Approved By: CONTROL STRUCTURE 439 PUBLIC WORKS DEPARTMENT 54" DIAMETER City Engineer Revision Date Nov, 2013 1 GROUT DETAIL NOTES:
1 INSTALL 1-18" AND 1-24" DIA. MH. SD ACCESS PER STD DETAIL 426, ONE SO THAT THE LIFT GATE IS VISIBLE AND THE STEPS ARE CLEAR AND DIRECTLY ACCESSIBLE. GROUT THE OTHER IS OVER THE RESTRICTOR UNIT.
2 OVERFLOW ELEVATION - SEE PLANS. 8 7 3 RESTRICTOR UNIT - SEE STD DETAIL 441. 9 4 POLYPROPLENE PLASTIC STEP SEE STD DETAIL 643.
5 MIN CLEARANCE: 36"FOR OUTLETS OF 24" AND LARGER 18" FOR OUTLETS OF 18" AND SMALLER
6 72" TYPE 2 CB OR LARGER.
7 BAND STRAP WITH GASKET
8 SEE PLAN AND SPECIFICATIONS FOR SIZE AND TYPE OF PIPE ENTERING 13 AND EXITING CB.
9 SECURE RESTRICTOR TO CB WITH 8 GA ALUMINUM STRAPS BOLT TO CB WALL WITH STAINLESS STEEL ANCHOR BOLTS. ONE STRAP ABOVE AND BELOW OUTLET REQUIRED, INTERMEDIATE STRAPS 12" REQUIRED FOR RESTRICTOR RISERS 14 GREATER THAN 12" ABOVE OUTLET. MIN. 10 LIFT HANDLE CONNECTOR-SEE STD DETAIL 444.
15 11 INVERT ELEVATION: SEE PLANS AND SPECIFICATIONS. 4 6" MIN. 12 SHEAR GATE - SEE STD DETAIL 444.
2 13 FOR POND APPLICATIONS EXPAND THE 10 STRUCTURE HIGHER AND PROVIDE A FRAMED OVERFLOW DEBRIS GRATED 3 OPENING ABOVE THE RESTRICTOR UNIT
8 0.10' MAX. 14 I.D. PLATE PER BOTHELL SURFACE WATER DESIGN MANUAL CORE 24" REQ. #1.2.6 12 15 CLEAN OUT TO INSPECT STRUCTURE
5 9 11
6
ELEVATION
Standard City of Bothell Detail Approved By: CONTROL STRUCTURE 440 PUBLIC WORKS DEPARTMENT 72" DIA. OR LARGER City Engineer Revision Date Nov, 2013 OVERFLOW EL. SECONDARY ORIFICES, TYP. SEE STD DETAIL 443
OVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONS ORIFICE DIA. = SEE PLANS AND SPECIFICATIONS
OVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONS ORIFICE DIA. =SEE PLANS AND SPECIFICATIONS
OVERFLOW INVERT EL. = SEE PLANS AND SPECIFICATIONS ORIFICE DIA. = SEE PLANS AND SPECIFICATIONS 24" MIN.
SHEAR GATE SEE STD DETAIL 444. 8" SIZE FOR 18" AND SMALLER - OUTLET PIPE 12" SIZE FOR 6" 24" AND LARGER - OUTLET PIPE
2
INV. EL. PER PLANS NOTES:
1. RESTRICTOR UNIT SHALL BE CONSTRUCTED OF CORRUGATED POLYETHYLENE PIPE AASHTO M294 TYPE S, POLYVINYL CHLORIDE (PVC) ASTM D-3034 SCHEDULE 40, OR ALUMINIZED CMP.
2. FOR PVC APPLICATIONS, ALL CONNECTIONS SHALL BE MADE USING STANDARD FITTINGS, NO WELDING SHALL BE USED.
3. FOR COMBINED WET/DETENTION PONDS, DELETE ORIFICE AT 1
DETAIL NOTES: 1
1 FOR HDPE APPLICATIONS 3/8" HDPE PLATE WELDED ALL AROUND - ORIFICE OPENING SIZE ACCORDING TO PLANS.
2 OUTLET PIPE MAY BE ADS N12 SMOOTH HDPE OR TAPERED SMOOTH HDPE - TYPE, LENGTH AND SIZE AS SHOWN ON PLANS.
Standard City of Bothell Detail Approved By: RESTRICTOR 441 PUBLIC WORKS DEPARTMENT RISER City Engineer Revision Date Feb, 2012 DETAIL NOTES:
1 1/2" THICK BOLT FLANGE TAPPED FOR (3) 1/2" DIAMETER NYLON BOLTS-INCLUDE A NEOPRENE GASKET (ELEVATION PER PLANS).
2 WELDED 90 DEG. BEND (SIZE PER PLANS) WITH 1/2" THICK BOLT FLANGE DRILLED FOR 1/2" DIAMETER NYLON BOLTS.
1
STANDPIPE WALL 2
ELBOW STUB WELDED TO STANDPIPE
INV. EL.
ORIFICE PLATE WELDED TO STUB. ORIFICE MACHINE-CUT
ALL PARTS TO BE HDPE OR PVC OR ALUMINUM EXCEPT AS NOTED
Standard City of Bothell Detail Approved By: SECONDARY 443 PUBLIC WORKS DEPARTMENT ORIFICE DETAIL City Engineer Revision Date Feb, 2012 FINISHED GRADE
HANDLE WITH LOCK PIN
ADJUSTABLE LOCK HOOK WITH LOCK SCREW
1" ROD OR TUBING, VARIABLE LENGTH, WITH HANDLE WITHIN REACH FROM SURFACE LEVEL OF STRUCTURE
LIFT HANDLE
SIX EVENLY SPACED HOLES ON 10 3/8" BOLT CIRCLE FOR BOLTING TO FLANGE MAXIMUM OPENING CONNECTION OF GATE
LEVEL LINE LIFT HANDLE SHALL BE ATTACHED PER MANUFACTURER'S RECOMMENDATIONS.
FRONT SIDE
Standard City of Bothell Detail Approved By: SHEAR GATE 444 PUBLIC WORKS DEPARTMENT City Engineer Revision Date Feb, 2012 LOCKING LID PER LOCKING LID PER STD DETAIL AS STD DETAIL AS FINISHED GRADE FOR TYPE APPLICABLE APPLICABLE SEE PLANS AND SPECIFICATIONS
2" MIN. DIA. AIR VENT PER PLANS NORMAL WATER A LEVEL
36" DIA 2' MAX.
6" DEAD STORAGE .005 /FT
36" MIN. DIA 2'MAX A
DETENTION PIPE TYPE 2-54" CATCH BASIN (DIA. AND LENGTH PER PLANS) WITH 2' MIN CATCH SEE STD DETAIL 414 CONTROL STRUCTURE PER STD DETAIL 439 OR 440 ELEVATION
12" MIN COMPACT IN 8" SAND - WITH SOIL ENGINEERED COVER LIFTS TO 90% COMPACTION TEST MAX. DENSITY. OR 5/8" MINUS CRUSHED ROCK OR PEA GRAVEL
W NOTES: DETENTION PIPE
1. ANNUAL INSPECTIONS AND CLEANING REQUIRED BY OWNER SECTION A-A TO INSURE PROPER OPERATION OF DETENTION SYSTEM.
2. W = MAX.IMUM WIDTH OF TRENCH FOR PIPES 15" OR LESS IN DIA. W = 40". FOR PIPES 18" OR GREATER W = 1 1/2" x I.D. + 18".
3. COMPACT IN 8" LIFTS TO 90% MAX. DENSITY.
Standard City of Bothell DETENTION POND Detail Approved By: WITH BIOFILTRATION 445 PUBLIC WORKS DEPARTMENT City Engineer SWALE Revision Date Feb, 2012 TOP WIDTH OF BERM CONTROL STRUCTURE 6' MIN. (18' MIN. TO PROVIDE A 16' EMERGENCY OVERFLOW W.S. ACCESS ROADS.) OVERFLOW W.S. BERM EMBANKMENT POND DESIGN W.S. OVERFLOW STRUCTURE 2 EXISTING 1 GROUND PROFILE
100 YEAR W.S. 1' DEAD STORAGE 1 2 "KEY" EXCAVATED INTO NATIVE GROUND 6' MIN. NOTES: DRY POND OUTFALL FOR WET PONDS, OR COMBINED DETENTION/WET PONDS: 1. INCREASE DEAD STORAGE TO 4' MIN., 6' MAX. CIRCUMFERENTIAL LENGTH 2. INSTALL A GATE VALVE @ OF OPENING SIZED FOR BASE OF OUTFLOW DESIGN FLOW AT 6" DEPTH STRUCTURE TO ALLOW 12" MIN. FOR DRAINAGE OF THE OVERFLOW W.S. POND. POND DESIGN W.S. 3. FOR WET POND, DELETE RESTRICTION RISER.
FRAME/GRATE FOR CONTROLLED POND OVERFLOW PROVIDE VERTICAL BARS IN FRAME AT 4" O.C. (OTHER FLOW SYSTEMS SECTION A - A ACCEPTABLE IF APPROVED BY THE CITY ENGINEER).
(AS REQUIRED FOR 6" DEPTH)
6' MIN. 10 L 10 1 1
2" ASPHALT (FOR SPILLWAY ON ACCESS RDS.)
EMERGENCY OVERFLOW WATER SURFACE 1' MIN. (SEE FIG. 5.3.1.E OF KING COUNTY SWDM) FREEBOARD 3 3 1 1 OVERFLOW W.S.
1' ROCK 9" MIN. THICKNESS ROCK LINING PROTECTION PER TABLE 4.4.1.A OF KING COUTY SWDM
EMERGENCY OVERFLOW SPILLWAY
Standard City of Bothell Detail Approved By: DETENTION POND 456 PUBLIC WORKS DEPARTMENT TYPICAL SECTIONS City Engineer Revision Date Feb, 2012 1' MIN. OR GREATER AS SEE KING COUNTY SWDM APPENDIX D.4.2.4 (*) FOR REQUIRED FOR PEAK FLOW RECOMMENDED SEED MIXED CONVEYANCE WITH HALF FOOT OF FREEBOARD. 4" TOP SOIL
3 1 MAX
SWALE CROSS SECTION
* KING COUNTY SURFACE WATER DESIGN MANUAL
Standard City of Bothell Detail Approved By: SWALE BIOFILTRATION 460 PUBLIC WORKS DEPARTMENT TYPICAL SECTION City Engineer Revision Date Feb, 2012 CL
CHANNEL
REQUIRED DIMENSIONS
A 8' FOR ROCK LINING A+B 12' FOR RIP RAP
SEE TABLE 4.2.2.A IN KING COUNTY SWDM
A
PLAN VIEW
PLACE ROCK 1' ABOVE CROWN BOTH SIDES CHANNEL FOR "A" d' ONE SIDE CHANNEL FOR "A" t8'
DISCHARGE PIPE 1' MIN.
FILTER FABRIC LINER UNDER ROCK
1' OR 2' ROCK THICKNESS SEE TABLE 4.2.2.A IN KING COUNTY SWDM SECTION A-A
Standard City of Bothell Detail Approved By: PIPE OUTFALL 461 PUBLIC WORKS DEPARTMENT QUARRY SPALLS City Engineer Revision Date Feb, 2012 RIP RAP
SD PIPE
C C
GABIONS (TYP.) (SIZE AS REQD.)
RIP RAP PLAN VIEW
SLEEVE OF NEXT LARGER SIZE DIA. PIPE FOR THERMAL EXPANSION AND CONTRACTION EXIST. GROUND LINE
SECTION C-C
PLACE FILTER FABRIC BETWEEN GABIONS AT SOIL BEDDING EXIST. GROUND LINE RIP RAP RIP RAP PIPE ANCHOR
SECTION A-A SECTION B-B
Standard City of Bothell Detail Approved By: PIPE OUTFALL 462 PUBLIC WORKS DEPARTMENT GABION TYPE City Engineer Revision Date Feb, 2012 PVC PIPE 18"
12" FILTER FABRIC
60"
18"
4" TO 6" QUARRY SPALLS, MORTARED IN SPACE
PLAN VIEW
NOTE: DO NOT MORTAR QUARRY SPALLS IF THE MAT FALLS WITHIN THE ANNUAL HIGH WATER MARK OF ANY STREAM.
Standard City of Bothell PIPE OUTFALL Detail Approved By: MORTARED QUARRY 463 PUBLIC WORKS DEPARTMENT City Engineer SPALL MAT Revision Date Feb, 2012 2'
CL
PLUG END X SECTION X-X
X CL OF DRAIN PIPE DRAIN TRENCH TOP OF GROUND BASE AND GROUND OR BALLAST A BACKFILL
.25' MIN. SUBGROUND UNDERDRAIN PIPE GRAVEL BACKFILL 6" DIA. FOR DRAINS
.05'
SECTION Y-Y
PLAN VIEW
NOTES:
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 IN EXCESS 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. DRAINAGE FLOW, PREFERABLY, SHOULD BE AWAY FROM THE MEDIAN.
6. SECTION Y - Y INDICATES THE MINIMUM REQUIRED AREA OF EXCAVATION. THE CONTRACTOR MAY, UPON THE APPROVAL OF THE DIRECTOR, EXCAVATE ADDITIONAL AREA IF REQUIRED FOR CONVENIENCE.
7. THE PIPE SHALL BE A 6" DIAMETER UNDERDRAIN PIPE.
Standard City of Bothell Detail Approved By: FRENCH DRAIN 464 PUBLIC WORKS DEPARTMENT UNDER ROAD City Engineer Revision Date Feb, 2012 MAY BE REMOVED
PLAN VIEW
3/4" DIA. SMOOTH BARS WITH ENDS WELDED TO BAR-FRAME
3/4" DIA. 4" O.C. MAX. 1' MIN. BAR-FRAME BAR SPACING
3 1
BEVELED PIPE END VIEW PIPE END SECTION 3"-5" FOR 18" DIA. COUPLING 5"-8" FOR 24" DIA. 2'X5' ANCHOR STRIPS 7"-9" FOR 30" DIA. AND GREATER WELDED TO 3/4" DIA. BAR-FRAME 4 PLCS. SPACED UNIFORMLY FASTEN WITHIN 1/2" BOLTS AND NUTS.
PLAN VIEW
NOTES:
1. CMP END-SECTION SHOWN. FOR CONCRETE PIPE BEVELED END-SECTION, SEE KING COUNTY ROAD STANDARDS FIG. 7-001.
2. ALL PARTS MUST BE ALUMINUM OR STAINLESS STEEL.
Standard City of Bothell Detail Approved By: PIPE AND SECTION 465 PUBLIC WORKS DEPARTMENT TRASH RACK City Engineer Revision Date Feb, 2012 7<3 6((127(
3/4" DIA. SMOOTH BARS EQUALLY SPACED (4" O.C. MAX.) HOOK CLAMPS (4) PLACES EVENLY SPACED SEE DETAIL BELOW. A A
PROVIDE MAINT. ACCESS BY WELDING (4) CROSS BARS TO (4) VERTICAL BARS AS SHOWN. HINGE UPPER ENDS WITH FLANGES/BOLT AND PROVIDE LOCKING MECHANISM (WITH PADOCK) ON LOWER END. LOCATE LADDER PLAN VIEW STEPS DIRECTLY BELOW.
UPPER STEEL BAND 3/4" THICK X 4" WIDE LOWER STEEL BAND 3/4" X 4" WIDE LONG SMOOTH BARS WELDED 3/4" THICK X 4" WIDE TO UPPER AND LOWER BANDS FORMED TO FIT IN (24 BARS EVENLY SPACED GROOVE OF CB RISER. 24" SEE NOTE 1.) SEE NOTE 1.
STEPS SEE STD. DETAIL 643
SECTION A-A
NOTES:
1. DIMENSIONS ARE FOR INSTALLATION ON 54" DIA. CB FOR DIFFERENT DIA. CB'S ADJUST SMOOTH ',0(16,216720$,17$,1$1*/(21 VERTICAL "VERTICAL" BARS AND 7" O.C. MAX. SPACING BARS OF BARS AROUND LOWER STEEL BAND.
HOOK CLAMP 2. METAL PARTS CORROSION RESISTANT, STEEL ANCHORED PARTS GALVANIZED. TO CB RISER 3. THIS DEBRIS BARRIER IS ALSO RECOMMENDED FOR USE ON THE INLET TO ROADWAY CROSS- DETAIL HOOK CLAMP CULVERTS WITH HIGH POTENTIAL FOR DEBRIS COLLECTION (EXCEPT ON TYPE 2 STREAMS).
Standard City of Bothell Detail Approved By: CONE 466 PUBLIC WORKS DEPARTMENT TRASH RACK City Engineer Revision Date Feb, 2012 6"
CONCRETE BLOCK
3' MIN.. PIPE BEDDED
CONCRETE BLOCK STRAP-FOOTING ANCHOR ANCHOR
6" MIN. (TYP.)
1" MIN. DIA. 1' MIN. STEEL ROD (STRAP) CLAMPED SECURELY TO PIPE. 6" MIN.
6" MIN. CONCRETE FOOTING 6" MIN. KEYED INTO UN- 1' MIN. DISTURBED SOIL AS SHOWN. CONCRETE BLOCK KEYED 2 X PIPE DIA. INTO UNDISTURBED SOIL AS SHOWN. MIN
SECTION A-A SECTION B-B
NOTES:
FOR HDPE, PIPE MUST BE FREE TO SLIDE INSIDE A 4' LONG SECTION OF PIPE ONE SIZE DIAMETER LARGER.
Standard City of Bothell Detail Approved By: PIPE ANCHORS 467 PUBLIC WORKS DEPARTMENT City Engineer Revision Date Feb, 2012 TO BYPASS CONVEYANCE TYPE II SYSTEMS OR DENTENTION POND CATCH BASIN
REINFORCED BAFFLE WALL GROUTED TO MH. STRUCTURE (BOTH ENDS)
PLAN VIEW TO WATER QUALITY FACILITY MH. FRAME WITH COVER PER STD DETAIL 426 OR C.B. FRAME WITH SOLID COVER PER STD DETAIL 423
4' MIN. OR PROVIDE SEPARATOR ACCESS TO EITHER SIDE OF STEPS PER STD DETAIL 643 BAFFLE WALL PROVIDE STEPS TO BOTH SIDES OF WALL IF GREATER THAN 36" HIGH
INFLOW TO WATER QUALITY FACILITY 2' MIN.
4" MIN. THICKNESS REINFORCED CONCRETE BAFFLE WALL OR OTHER SUITABLE MATERIAL BYPASS PIPE ELEVATION NOTES:
1. THE WATER QUALITY DISCHARGE PIPE MAY REQUIRE AN ORIFICE PLATE BE INSTALLED ON THE OUTLET TO CONTROL THE HEIGHT OF THE DESIGN WATER SURFACE (WEIR HEIGHT). THE DESIGN WATER SURFACE SHOULD BE SET TO PROVIDE A MINIMUM HEADWATER/DIAMETER RATIO OF 2.0 ON THE OUTLET PIPE.
2. GROUT ALL JOINTS INSIDE AND OUTSIDE.
Standard City of Bothell Detail Approved By: FLOW SPLITTER 468 PUBLIC WORKS DEPARTMENT TYPE A City Engineer Revision Date Feb, 2012 TO BYPASS CONVEYANCE SYSTEMS OR DENTENTION POND
TYPE II CATCH BASIN
BAFFLE TO CONTROL 2D FLOATABLES
DIA. OF STANDPIPE (2X DIA. OF OUTLET PIPE RECOMMENDED AS STARTING POINT)
INFLOW
TO WATER QUALITY FACILITY
PLAN VIEW
MH. FRAME WITH COVER BAFFLE TO CONTROL PER STD DETAIL 426 OR C.B. FLOATABLES OR PROVIDE FRAME WITH SOLID COVER SPILL CONTROL UPSTREAM PER STD DETAIL 423 TOP OF PIPE AT WQ DESIGN WATER SURFACE ELEVATION AND HEAD LOSSES IN OUTLET PIPE STEPS PER STD DETAIL 643 PROVIDE STEPS TO BOTH SIDES OF WALL IF GREATER TOP OF RISER AT DESIGN WS THAN 36" HIGH ELEVATION
6" 6"
INFLOW "TEE" SECTION WITH CLEANOUT (OR REMOVABLE BEND-DOWN ELBOW)
SOLID BOTTOM (PROVIDE MAINTENANCE TO WATER QUALITY ACCESS) FACILITY
ORIFICE SIZED TO PASS WQ DESIGN FLOW ELEVATION NOTE:
GROUT ALL JOINTS INSIDE AND OUTSIDE.
Standard City of Bothell Detail Approved By: FLOW SPLITTER 469 PUBLIC WORKS DEPARTMENT TYPE B City Engineer Revision Date Feb, 2012 SUBGRADE
PIT RUN 3" MINUS 3' MIN. 95% COMPACTION CRUSHED ROCK 5/8"-1 1/2"
NATIVE MATERIAL IF PIT RUN 3" MINUS APPROVED BY 90% COMPACTION CRUSHED ROCK DIRECTOR 5/8"-1 1/2"
SOIL ENGINEER AND COMPACTION TEST REQUIRED FOR ALL 5 18" MIN. - 8" MINUS CRUSHED ROCK - SAND 90% COMPACTION - OR OTHER APPROVED SELECT FILL
PIPE ZONE 3. PEA GRAVEL
6" MIN.
SOILS ENGINEERING 2"-4" ROCK OR DETAIL NEEDED 90% COMPACTION OTHER MATERIAL LISTED ABOVE
SECTION
TRENCH WIDTHS
NOMINAL MINIMUM MINIMUM PIPE MAXIMUM EARTH ROCK DIAMETER NOTES: 2 18 24 36 1. BEDDING - IN RIGHT-OF-WAY, DRIVEWAY, 3 18 24 36 PARKING LOTS, PAVED AREAS. 4 18 24 36 2. FOR PATCHING SEE STD DETAIL 317. 6 21 24 36 8 24 24 36 3. BEDDING WITH PEA GRAVEL 6" MIN UNDER PIPE TO TOP OF PIPE. 12 28 28 40 (IN INCHES)
Standard City of Bothell PAVED AREAS Detail Approved By: AND AREA WITHIN 470 PUBLIC WORKS DEPARTMENT City Engineer THE RIGHT-OF-WAY Revision Date Feb, 2012 SUBGRADE
90% COMPACTION
NATIVE NON-PAVED AREAS
90% COMPACTION
12" MIN. 90% COMPACTION
1 PIPE ZONE
6" MIN.
SOILS ENGINEERING DETAIL NEEDED 90% COMPACTION
SECTION
TRENCH WIDTHS
NOMINAL MINIMUM MINIMUM PIPE MAXIMUM EARTH ROCK DIAMETER NOTE: 2 18 24 36 3 18 24 36 1. BEDDING MATERIAL FOR PIPE - 6 " MIN. UNDER PIPE TO TOP OF PIPE - 4 18 24 36 PEA GRAVEL, 5/8" MINUS CRUSHED 6 21 24 36 ROCK, OR SAND APPROVED BY CITY ENGINEER. 8 24 24 36 12 28 28 40
(IN INCHES)
Standard City of Bothell UNPAVED AREAS Detail Approved By: OUTSIDE OF 471 PUBLIC WORKS DEPARTMENT City Engineer THE RIGHT-OF-WAY Revision Date Feb, 2012 STEEP
SLOPE FOREGROUND COLOR: TEAL AREA BACKGROUND COLOR: BEIGE
Help protect and care for this area.
SIGN SIZE: 24"X36"
ATTACH SIGN TO POST WITH DRIVE RIVETS PER 2X2 UNISTRUT AS STD DETAIL 384 PER STD DETAIL 384.
NOTES:
1. THE SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER, SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.
2. SIGN SHALL BE STATIONED IN A PROMINENT LOCATION, i.e., AT THE CLOSEST POINT TO THE PROPOSED DEVELOPMENT. SIGN MAY ALSO BE ATTACHED TO FENCES.
Standard City of Bothell Detail Approved By: STEEP SLOPE SIGN 480 PUBLIC WORKS DEPARTMENT INSTALLATION City Engineer Revision Date Feb, 2012 FOREGROUND COLOR: TEAL
BACKGROUND COLOR: BEIGE Wetland
(WETLAND NUMBER)
Help protect and care for this area
SIGN SIZE: 24"X36"
ATTACH SIGN TO POST WITH DRIVE RIVET PER 2X2 UNISTRUT AS STD DETAIL 384 PER STD DETAIL 384.
NOTES:
1. THE WETLAND SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER, SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.
2. SIGN SHALL BE STATIONED IN A PROMINENT LOCATION, i.e., AT THE CLOSEST POINT TO THE PROPOSED DEVELOPMENT. SIGN MAY ALSO BE ATTACHED TO FENCES.
Standard City of Bothell Detail Approved By: WETLAND SIGN 481 PUBLIC WORKS DEPARTMENT INSTALLATION City Engineer Revision Date Feb, 2012 FOREGROUND COLOR: TEAL
BACKGROUND COLOR: BEIGE Stream
(STREAM NAME)
Help protect and care for this area
SIGN SIZE: 24"X36"
ATTACH SIGN TO POST 2X2 UNISTRUT AS WITH DRIVE RIVET PER PER STD DETAIL 384 STD DETAIL 384
NOTES:
1. THE STREAM SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREA BUFFER, SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.
2. SIGN SHALL BE STATIONED IN A PROMINENT LOCATION, i.e., AT THE CLOSEST POINT TO THE PROPOSED DEVELOPMENT. SIGN MAY ALSO BE ATTACHED TO FENCES.
Standard City of Bothell Detail Approved By: STREAM SIGN 482 PUBLIC WORKS DEPARTMENT INSTALLATION City Engineer Revision Date Feb, 2012 PROPERTY LINE (TYP)
CLEANOUT (TYP)
NEW OR REMODELED
SINGLE FAMILY SINGLE FAMILY HOME SINGLE FAMILY HOME HOME
DRIVEWAY PERF. PIPE DRIVEWAY YD DRIVEWAY FOOTING DRAIN SEE NOTE 2
SOLID PIPE FOR DOWNSPOUTS CB TYPE 1
EDGE OF PAVEMENT SEE NOTE 1 SEE STD DETAIL 496 BOTHELL STREET
NOTES:
1. IF THIS DISTANCE IS 50' OR LESS, THE DITCH MUST BE TIGHT LINED. ADDITIONAL CATCH BASINS MAY BE REQUIRED BASED ON SITE CONDITIONS.
2. INSTALL YARD DRAIN PER STD DETAIL 410 AT CONNECTION POINT OF FOOTING DRAIN AND DOWN SPOUT PIPES.
Standard City of Bothell OUTFALL TO DITCH Detail Approved By: LAYOUT 495 PUBLIC WORKS DEPARTMENT City Engineer SMALL PROJECTS Revision Date Feb, 2012 NEW SD FROM SMALL DRAINAGE AREA
EX. DRIVEWAY FILL DITCH TO TOP OF BANK
FLOW
NEW A.C.
PLAN VIEW
D/W 2' MIN. TOP OF BANK A.C. PAVING 2 CSTC 1
EX. CULVERT
MATCH CROWN'S
TRIM EXISTING SD PIPE FLUSH C.B. TYPE I WITH CATCH BASIN WALL STD DETAIL 412 PROFILE
Standard City of Bothell Detail Approved By: OUTFALL TO DITCH 496 PUBLIC WORKS DEPARTMENT SMALL PROJECTS City Engineer Revision Date Feb, 2012 FOOTING DRAIN TO SURROUND STRUCTURE SINGLE FAMILY HOME
12" TOPSOIL.
ROOF DRAIN - 4" TIGHTLINE SEPARATE FROM FOOTING DRAIN.
GRANULAR BACKFILL TO BE FREE OF CONCRETE, COBBLES OR OTHER MATERIALS WHICH MAY DAMAGE PIPE.
4" PVC SDR31 RIGID PERF. PIPE. PLACE WEEPHOLES DOWNWARD. MIRAFI 140NSL FILTER FABRIC OR EQUIVALENT WRAP TO SURROUND GRAVEL. OVERLAP ON TOP.
MINIMUM 6" ROCK ON TOP F.G. CRAWL SPACE 3/4" -1 1/2" WASHED ROCK TO TOP OF FOOTING.
4" 6" MIN.
NOTES
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 TO CITY STORM WATER FACILITY OR ON SITE DETENTION FACILITY.
3. FOOTING DRAIN MUST PROVIDE AT LEAST 6" OF CLEARANCE BETWEEN CRAWLSPACE FINISHED GRADE OR BOTTOM OF SLAB-ON-GRADE, AND TOP OF FOOTING DRAIN.
Standard City of Bothell Detail Approved By: FOOTING DRAIN 497 PUBLIC WORKS DEPARTMENT City Engineer Revision Date Feb, 2012 30" SQ CAST IRON LOCKING 30" SQ CAST IRON LOCKING RING AND COVER RING AND COVER CEMENT CONC CEMENT CONC CLASS 4000 PAVED CLASS 4000 SURFACE 12" 12"
#10 SOLID CORE TRACER WIRE 12" PVC 12" PVC SLEEVE (2) WRAPS MINIMUM REQUIRED SLEEVE FOR MAGNETIC LOCATION. FIBER JOINT MECHANICAL PLUG PACKING FIBER JOINT PACKING MECHANICAL PLUG SEE STD SEE STD NO. 602 NO. 602
10' (NOTE 4) 10' (NOTE 4)
P P L PAVED AREAS L UNPAVED AREAS
STORM
NOTE:
1. CLEANOUT PIPE AND FITTINGS SHALL BE PVC. 14"
2. A SANITARY TEE OR SWEEP MAY BE INSTALLED IN LIEU OF A WYE AS SHOWN. STRAIGHT TEES ARE NOT ACCEPTABLE.
3. FOR NEW PLATS THE VERTICAL RISER PORTION OF THE CLEANOUT WILL 4" BE CONSTRUCTED AT TIME OF CONNECTION TO BUILDING TO MINIMIZE DAMAGE, THE 6" WYE AND 6' PVC PIPE WITH MECHANICAL PLUG WILL BE INSTALLED PRIOR TO BUILDING CONNECTION. 12"
4. STORM PIPE STUB WILL BE EXTENDED 10' BEYOND PROPERTY LINE TO 20" PREVENT DAMAGE TO CLEANOUT AND MINIMIZE CONFLICTS WITH OTHER UTILITIES WHEN SERVICE TO BUILDING IS ACCOMPLISHED. 12" CASTING FORCE LOCKING RING AND COVER
Standard City of Bothell Detail Approved By: STORM PIPE 498 PUBLIC WORKS DEPARTMENT CLEANOUT City Engineer Revision Date Jun, 2015 OF SF OF
1 CE OF EXISTING OF EOP
4 IS SF
EXISTING DITCH
SEDIMENT TRAP ST
OF SF
IS
2
CATCH BASIN INTERCEPTOR DITCH W/ROCK CHECK DAMS SEE STD DETAIL T405 3
OP
DETAIL NOTES: LABEL IDENTIFICATION
INTERCEPTOR SWALE 1 CONSTRUCTION ENTRANCE - SEE STD DETAIL T404 IS ST SEDIMENT TRAP STABILIZED 2 SEDIMENT BASIN OUTLET STRUCTURE AND DAM - SEE STD DETAIL T401 CE CONSTRUCTION ENTRANCE 3 IN CRITICAL AREAS, INSTALL A SILT FENCE IN THE SEDIMENT BASIN. SF SILT FENCE OP OUTLET PROTECTION 4 CLEARING LIMITS OF ORANGE BARRIER PRIOR TO ANY SITE CLEARING OR GRADING, THOSE AREAS THAT ARE TO FENCE 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.
Standard City of Bothell Detail Approved By: MODEL SITE PLAN T400 PUBLIC WORKS DEPARTMENT 3 ACRES AND SMALLER City Engineer Revision Date Feb, 2012 EMERGENCY SPILLWAY RIP-RAP OVER FILTER FABRIC GRAVEL RISER CONE ENTIRE LENGTH.
SEDIMENT TRAP
2' MIN. WIDTH
RISER PIPE
COMPACTED EARTH DAM (BERM) PLAN VIEW
1 ORIGINAL WATER LEVEL GRADE DURING STORM 2' MIN
TOP OF 2" DEPRESSION BERM FOR EMERGENCY 2 SPILLWAY 1 1 3 12" min LEVEL BOTTOM
CB PROFILE
CONNECT TO CITY DETAIL NOTES: STORM DRAIN SYSTEM
1 RISER PIPE - SEE STD DETAIL T402
NOTES:
1. SHAPE OF SEDIMENTATION POND MAY VARY TO FIT DRAINAGE AREA AND TERRAIN. MODIFY AS NECESSARY TO ENSURE SATISFACTORY 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 ABOVE THE BOTTOM OF THE TRAP. CONTRACTOR SHALL RESTORE THE TRAP BACK TO ORIGINAL DEPTH AND SIZE WHEN THE SEDIMENT REACHES THIS LEVEL.
4. FOR USE ON SITES LESS THAN 3 ACRES IN SIZE.
5. TRAP MAY BE BERM OR BY PARTIAL OR COMPLETE EXCAVATION.
Standard City of Bothell Detail Approved By: SEDIMENT TRAP T401 PUBLIC WORKS DEPARTMENT EARTH BERM City Engineer Revision Date Feb, 2012 FILTER FABRIC 3" DIA. HOLES, COVER WITH 6" O.C. IN THE WIRE FASTENER UPPER 24" (COVER TOP 30 HOLES MIN. AND HOLES)
FASTENER TOP OF BERM
FINISHED GRADE
GRAVEL RISER CONE
ORIGINAL GRADE 12" MIN
18" RISER PIPE
P.V.C. SIZE FOR QDEV-25 YR. FINISHED STORM (12" MIN) GRADE 18X18X12 TEE
STORM CATCH BASIN TYPE 1
FILL WITH CONC. OR CRUSH SURFACE CONNECT TO CITY BASE COURSE TO STORM DRAIN SYSTEM FLOW LINE OF OUTLET PIPE
SECTION
CAP
Standard City of Bothell Detail Approved By: RISER PIPING T402 PUBLIC WORKS DEPARTMENT ELEMENT City Engineer Revision Date Feb, 2012 KEY DIVIDER INTO SLOPE TO PREVENT FLOW EMERGENCY OVERFLOW AROUND SIDES SPILLWAY RIP-RAP OVER FILTER FABRIC ENTIRE LENGTH.
2' MIN. INFLOW
RISER PIPE
3
POND LENGTH
CB
DISCHARGE TO CITY THE POND LENGTH SHALL BE STORM DRAINAGE 3 TO 6 TIMES THE POND WIDTH SYSTEM. PLAN VIEW 6' MIN. WIDTH 1 7 1' MIN 3.5' MIN. 6
1' MIN CREST OF 2 EMERGENCY 3 SPILLWAY
4 BERM 1' MIN. 5 CROSS - SECTION TO CITY STORM NOTES: DRAINAGE SYSTEM.
1. TO AIDE IN DETERMINING SEDIMENT DEPTH, ONE-FOOT INTERVALS SHALL BE PROMINENTLY MARKED ON THE 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. DETAIL NOTES: 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 PREVENT FLOTATION.
6 EMBANKMENT COMPACTED 95%. PERVIOUS MATERIALS SUCH AS GRAVEL OR CLEAN SAND SHALL NOT BE USED.
7 PROVIDE ADEQUATE STRAPPING.
Standard City of Bothell Detail Approved By: SEDIMENT POND T403 PUBLIC WORKS DEPARTMENT WITH RISER ELEMENT City Engineer Revision Date Feb, 2012 PROJECT LENGTH OF SIZE QUARRY SPALLS ATB < 1/4 ACRE 30 0 < 1 ACRE 50 0 < 3 ACRE 100 0 > 3 ACRE 100 50
(SEE NOTE 2) SEE SECTION 5.4.4.2 B.S.W.D.M. x x x x x x x
3
x x x x x x x PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA GEOTEXTILE FABRIC 4 1 UNDER QUARRY SPALLS PLAN VIEW
6" R/W TYPICAL 1 3 EX. ROAD VARIES
SECTION DETAIL NOTES:
1 4" TO 8" QUARRY SPALLS AS SPECIFIED IN SECTION 9-13.6 OF THE WSDOT/APWA STANDARD SPECIFICATIONS.
2 THE MINIMUM LENGTH SHALL BE LENGTHENED AS NECESSARY TO ENSURE MATERIAL IS NOT TRACKED INTO THE PUBLIC RIGHT-OF-WAY. ALTERNATE CONSTRUCTION ENTRANCES WILL BE ALLOWED WITH APPROVAL OF THE DIRECTOR ON A CASE BY CASE BASIS, WHERE PHYSICAL SITE CONDITIONS AND SIZE DICTATE
3 ATB DRIVEWAY RAMP, OR SITE ACCESS ROAD 20' WIDE MIN. SEE TABLE ABOVE FOR REQUIRED LENGTH.
4 INSTALL ORANGE BARRIER FENCE TO DIRECT TRAFFIC ONTO CONSTRUCTION ENTRANCE
NOTES:
1. SURFACE WATER - ALL SURFACE WATER FLOWING OR DIVERTED TOWARD CONSTRUCTION ENTRANCES SHALL BE PIPED ACROSS THE ENTRANCE IF PIPING IS IMPRACTICAL, A MOUNTABLE BERM WITH 5:1 SLOPES WILL BE PERMITTED.
2. MAINTENANCE - THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC RIGHT-OF-WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AS CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY MEASURES USED 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 WITH STONE AND WHICH DRAINS INTO AN APPROVED SEDIMENT TRAPPING DEVICE.
4. PERIODIC INSPECTION AND NEEDED MAINTENANCE SHALL BE PROVIDED AFTER EACH RAIN. 5. TRUCK TIRE WASH REQUIRED
Standard City of Bothell STABILIZED Detail Approved By: CONSTRUCTION T404 PUBLIC WORKS DEPARTMENT City Engineer ENTRANCE Revision Date Feb, 2012 SEE TABLE A 1
X LEVEL LINE Y
ROCK CHECK 1 DAM - (TYP) SEE TABLE A 2 DETAIL NOTES: DITCH PROFILE
1 DAM SPACING
2 SEDIMENT TRAP LENGTH
3 LINE THE BOTTOM OF THE SWALE WITH 4" C.S.T.C CRUSH SURFACE TO COURSE.
3
DITCH PLAN
TOP OF CHECK DAM EX. GRADE TABLE A
SLOPE FT/FT 1 2
FLOW LINE 1:100 100 10 1:50 50 10 1 1 3 3 1:25 25 5 SEDIMENT TRAP 1:20 20 4 UP STREAM 3 1:15 15 3 12" 1:10 10 2 SECTION A-A 1:5 5 0
NOTE:
1. SUMP BEHIND ROCK CHECK DAM SHALL BE INSPECTED DAILY, AND CLEANED WHEN COLLECTED DEBRIS EXCEEDS 1/2 OF ITS DEPTH.
Standard City of Bothell INTERCEPTOR DITCH Detail Approved By: WITH ROCK CHECK T405 PUBLIC WORKS DEPARTMENT City Engineer DAMS Revision Date Feb, 2012 HOLDING STRAPS INTERCEPTOR SWALE/DIKE
PLAN VIEW
EXISTING GROUND ANCHOR PINS AS REQUIRED
SECTION A-A
FLEXIBLE DRAIN PIPE (OR APPROVED EQUAL) INTERCEPTOR SWALE/DIKE SLOPE ANCHOR'S REQUIRED FOR SLOPE GREATER THAN 20%.
STANDARD METAL OR HIGH DENSITY POLYETHYLENE END SECTION WITH HOLDING STRAPS AND ANCHOR PINS (TYP TOP AND BOTTOM)
USE STD DETAILS 461 OR 462 OR 463 FOR PIPE OUTFALL
EXISTING OR GRADED SLOPE
ISOMETRIC
Standard City of Bothell Detail Approved By: PIPE City Engineer T406 PUBLIC WORKS DEPARTMENT SLOPE DRAIN Revision Date Feb, 2012 STANDARD STRENGTH FILTER FABRIC GRATE
6" TYP. 6" TYP.
CATCH BASIN
NOTE: ONLY TO BE USED WHERE PONDING OF WATER ABOVE THE CATCH BASIN WILL NOT CAUSE TRAFFIC PROBLEMS AND WHERE OVERFLOW WILL NOT RESULT IN EROSION OF SLOPES. FILTER FABRIC PROTECTION
CATCH BASIN GRATE
SOLID OVERFLOW WALLS
FILTER MEDIA FOR DEWATERING
POROUS BOTTOM
NOTE: THIS DETAIL IS ONLY SCHEMATIC. ANY INSERT IS ALLOWED THAT HAS A MIN. 0.5 C.F. OF STORAGE. THE MEANS TO DEWATER THE STORED SEDIMENT, AN OVERFLOW, AND CAN BE EASILY MAINTAINED.
CATCH BASIN INSERT NOTES:
1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PROTECTION SHALL BE REMOVED IMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED WITH WATER, AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON-SITE OR HAULED OFF-SITE.
2. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
3. REGULAR MAINTENANCE IS CRITICAL FOR BOTH FORMS OF CATCH BASIN PROTECTION. UNLIKE MANY FORMS OF PROTECTION THAT FAIL GRADUALLY, CATCH BASIN PROTECTION WILL FAIL SUDDENLY AND COMPLETELY IF NOT MAINTAINED PROPERLY.
4. ALL CATCH BASIN PROTECTION SHALL BE REMOVED WHEN WORK IS COMPLETE.
Standard City of Bothell Detail Approved By: STORM T408 PUBLIC WORKS DEPARTMENT INLET PROTECTION City Engineer Revision Date Feb, 2012 WIRE FABRIC
NEWLY GRADED OR DISTURBED SIDE 2' 2' SLOPE SILT FENCE
FILTER FABRIC MATERIAL
NATIVE BACKFILL MATERIAL
8"
SECTION A-A NOTE:
INSTALL THE SILT FENCE FIRST. AFTER THE SILT FENCE HAS BEEN INSTALLED, CONSTRUCT BERM AND TRENCH.
FILTER FABRIC MATERIAL WIRE RINGS 2"x4"x14 GAUGE MIRAFI 100X OR (TYPICAL) WELDED WIRE FABRIC EQUIVALENT OR EQUAL
STEEL OR 2 X 4 WOOD POSTS. 6' O.C. ELEVATION
Standard City of Bothell Detail Approved By: SILT FENCE T409 PUBLIC WORKS DEPARTMENT City Engineer Revision Date Feb, 2012