HomeMy WebLinkAboutzSurfaceWaterSetPRECAST BASE SECTION
SEE NOTE 1
NOTES:
1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN
IN THE PRECAST BASE SECTION, FIBERS (PLACED IN
ACCORDANCE WITH STANDARD SPECIFICATION
9-05.50(9)), OR WIRE MESH HAVING A MINIMUM AREA OF
0.12 SQUARE INCHES PER FOOT SHALL BE USED WITH
THE MINIMUM REQUIRED REBAR SHOWN IN THE
ALTERNATIVE PRECAST BASE SECTION. WIRE MESH
SHALL NOT BE PLACED IN THE KNOCKOUTS. AS AN
ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN
THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH
HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER
FOOT MAY BE USED.
2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER
THAN 20". KNOCKOUTS SHALL HAVE A WALL THICKNESS
OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5"
MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE
OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED,
FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-04.3.
3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO
THE LOWEST PIPE INVERT SHALL BE 5 FEET.
4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE
FLANGE DOWN.
5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED
FLOOR, AND THE WALLS MAY BE SLOPED AT A RATE OF
1H:24V OR STEEPER.
6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE
PRECAST BASE SECTION.
7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE
INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR
NON-SHRINK APPLICATIONS IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-20.3(2).
8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN
MORTAR IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE
AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND
FRAMES.
9.MORTAR SHALL BE MIXED AND APPLIED PER
MANUFACTURER'S DIRECTIONS.
10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY
TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS
DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
LENGTH.
11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND
REMAIN VISIBLE UPON COMPLETION.
FRAME AND VANED GRATE
RECTANGULAR ADJUSTMENT SECTION
34"
24"
30
"
20
"
5"
5"
1", 2", 4", 6", 12", OR 24"
ONE #3 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
PIPE ALLOWANCES
PIPE MATERIAL
MAXIMUM
INSIDE
DIAMETER
REINFORCED OR PLAIN
CONCRETE 12"
ALL METAL PIPE 15"
CPSSP*,
STD. SPEC. 9-05.20 12"
SOLID WALL PVC,
STD. SPEC. 9-05.12(1)15"
PROFILE WALL PVC,
STD. SPEC. 9-05.12(2)15"
* CORRUGATED POLYETHYLENE STORM
SEWER PIPE
26",
S
E
E
N
O
T
E
6
22
"
,
SE
E
N
O
T
E
6
3"4"44"21" MIN.4" MI
N. (
T
Y
P.)
#3 BAR EACH SIDE
#3 BAR EACH WAY
#3 BAR EACH CORNER
#3 BAR EACH
CORNER 18" MIN.
#3 BAR HOOP
ALTERNATIVE PRECAST BASE SECTION
CATCH BASIN TYPE 1
STD. PLAN - 200.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
REDUCING SECTION
36
"
20
"
40"
24"
6"
8"
8"12"4"32",
SEE
N
O
T
E
6
28
"
,
SE
E
N
O
T
E
6
4" MI
N. (
T
Y
P.)44"2"PRECAST BASE SECTION
SEE NOTE 1
ALTERNATIVE PRECAST BASE SECTION
NOTES:
1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN THE PRECAST BASE
SECTION, FIBERS (PLACED IN ACCORDANCE WITH STANDARD SPECIFICATION
9-05.50(9)), OR WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER
FOOT SHALL BE USED WITH THE MINIMUM REQUIRED REBAR SHOWN IN THE
ALTERNATIVE PRECAST BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE
KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN THE
RECTANGULAR ADJUSTMENT SECTION, WIRE MESH HAVING A MINIMUM AREA OF
0.12 SQUARE INCHES PER FOOT MAY BE USED.
2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 26". KNOCKOUTS SHALL
HAVE A WALL THICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM
GAP BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. AFTER THE
PIPE IS INSTALLED, FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-04.3.
3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE LOWEST PIPE INVERT
SHALL BE 5'.
4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE FLANGE DOWN.
5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR, AND THE WALLS MAY
BE SLOPED AT A RATE OF 1H:24V OR STEEPER.
6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE SECTION.
7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS BEEN PLACED.
USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-20.3(2).
8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF
ALL JOINTS, RINGS, RISERS, AND FRAMES.
9.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S DIRECTIONS.
10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS
FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
LENGTH.
11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON
COMPLETION.
FRAME AND VANED GRATE
RECTANGULAR ADJUSTMENT SECTION
34"
24"
30
"
20
"
5"
5"
1", 2", 4", 6", 12", OR 24"
ONE #3 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
#3 BAR EACH
CORNER 18" MIN.
#3 BAR HOOP
PIPE ALLOWANCES
PIPE MATERIAL
MAXIMUM
INSIDE
DIAMETER
REINFORCED OR PLAIN
CONCRETE 18"
ALL METAL PIPE 21"
CPSSP*,
STD. SPEC. 9-05.20 18"
SOLID WALL PVC,
STD. SPEC. 9-05.12(1)21"
PROFILE WALL PVC,
STD. SPEC. 9-05.12(2)21"
* CORRUGATED POLYETHYLENE STORM
SEWER PIPE
TWO #3 BAR HOOPS
#3 BAR EACH SIDE
#3 BAR EACH WAY
#3 BAR EACH CORNER
CATCH BASIN TYPE 1L
STD. PLAN - 200.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
FRAME AND VANED GRATE
RECTANGULAR ADJUSTMENT SECTION
34"
24"
30
"
20
"
5"
5"
NOTES:4"4"
M
I
N
.
SE
E
N
O
T
E
6
22
"
,
4" MI
N.
26",
SEE
N
O
T
E
6
PRECAST BASE SECTION
SE
E
N
O
T
E
6
4"
M
I
N
.
4" MI
N.
26",
SEE
N
O
T
E
6
4"22
"
,32" MIN.56"SEE NOTE 1
ALTERNATIVE PRECAST BASE SECTION32" MIN.56"1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN THE
PRECAST BASE SECTION, FIBERS (PLACED IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-05.50(9)), OR WIRE MESH HAVING A
MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT SHALL BE USED
WITH THE MINIMUM REQUIRED REBAR SHOWN IN THE ALTERNATIVE
PRECAST BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE
KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE REBAR
SHOWN IN THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH
HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE
USED.
2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 18".
KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 2.5"
MAXIMUM. PROVIDE A 1.5" MINIMUM GAP BETWEEN THE KNOCKOUT
WALL AND THE OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED,
FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-04.3.
3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE LOWEST
PIPE INVERT SHALL BE 5'.
4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE FLANGE
DOWN.
5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR, AND
THE WALLS MAY BE SLOPED AT A RATE OF 1H:24V OR STEEPER.
6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST
BASE SECTION.
7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS
BEEN PLACED. USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS
IN ACCORDANCE WITH STANDARD SPECIFICATION 9-20.3(2).
8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN
ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. THEN APPLY
MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS,
AND FRAMES.
9.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S
DIRECTIONS.
10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING
UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A
STRAIGHT EDGE OF SUFFICIENT LENGTH.
11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE
UPON COMPLETION.
ONE #3 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY), SEE NOTE 1
#3 BAR EACH SIDE
#3 BAR EACH CORNER
#3 BAR EACH WAY
#3 BAR
HOOP
#3 BAR HOOP
#3 BAR EACH
CORNER, 18" (MIN.)
1", 2", 4", 6",
12", OR 24"
CATCH BASIN TYPE 1P
(FOR PARKING LOT)
STD. PLAN - 200.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
4"25"PRECAST BASE SECTION
NOTES:
1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN
THE PRECAST BASE SECTION, FIBERS (PLACED IN
ACCORDANCE WITH STANDARD SPECIFICATION 9-05.50(9)),
OR WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE
INCHES PER FOOT SHALL BE USED WITH THE MINIMUM
REQUIRED REBAR SHOWN IN THE ALTERNATIVE PRECAST
BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE
KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE
REBAR SHOWN IN THE RECTANGULAR ADJUSTMENT
SECTION, WIRE MESH HAVING A MINIMUM AREA OF 0.12
SQUARE INCHES PER FOOT MAY BE USED.
2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN
18". KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2"
MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP
BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE
PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH
JOINT MORTAR IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-04.3.
3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE
LOWEST PIPE INVERT SHALL BE 5'.
4.THE FRAME AND GRATE SHALL BE INSTALLED WITH THE
FLANGE DOWN.
5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR,
AND THE WALLS MAY BE SLOPED AT A RATE OF 1H:24V OR
STEEPER.
6.THE STRUCTURE OPENING DIMENSIONS SHALL BE
MEASURED AT THE TOP OF THE PRECAST BASE SECTION.
7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE
INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR
NON-SHRINK APPLICATIONS IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-20.3(2).
8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR
IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3.
THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF ALL
JOINTS, RINGS, RISERS, AND FRAMES.
9.MORTAR SHALL BE MIXED AND APPLIED PER
MANUFACTURER'S DIRECTIONS.
10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY
TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS
DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
LENGTH.
11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN
VISIBLE UPON COMPLETION.
FRAME AND VANED GRATE
RECTANGULAR ADJUSTMENT SECTION
4" MI
N. (
T
Y
P.)
26",
SEE
N
O
T
E
6
22
"
,
SE
E
N
O
T
E
6
SEE NOTE 1
ALTERNATIVE PRECAST BASE SECTION
#3 BAR EACH SIDE
TOP AND BOTTOM
#3 BAR EACH CORNER
ONE #3 BAR
ACROSS BOTTOM
#3 BAR EACH
CORNER 18" (MIN.)
#3 BAR HOOP
PIPE ALLOWANCES
PIPE MATERIAL
MAXIMUM
INSIDE
DIAMETER
REINFORCED OR PLAIN
CONCRETE 12"
ALL METAL PIPE 15"
CPSSP* ,
STD. SPEC. 9-05.20 12"
SOLID WALL PVC,
STD. SPEC. 9-05.12(1)15"
PROFILE WALL PVC,
STD. SPEC. 9-05.12(2)15"
* CORRUGATED POLYETHYLENE STORM
SEWER PIPE
34"
24"
30
"
20
"
5"
5"
1", 2", 4", 6", 12", OR 24"
ONE #3 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
CONCRETE INLET
STD. PLAN - 200.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
2' 11-1/2"
2' 2"4-3/4"4-3/4"
2' 7"1' 10"
4-1/2"
4-1/2"
DRA
I
N
3' 4"
3'
3' 6-1/4"
1' 11-1/2"
2' 9-1/2"2' 5"
6"
8"
3' 8"
5-1/2"
6"
5' 5-3/4"
ONE #4 BAR HOOP
#4s EACH SIDE OF OPENING
CONVERSION RISER
Ø 2'
6"
8"
CONVERSION RISER
ADJUSTMENT RINGS
CONVERSION RISER
STD. PLAN - 200.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DEPTH: 3.52' TO IE OUT
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.NO STEPS ARE REQUIRED WHEN HEIGHT IS 4' OR LESS.
2.THE BOTTOM OF THE PRECAST CATCH BASIN MAY BE
SLOPED TO FACILITATE CLEANING.
3.THE RECTANGULAR FRAME AND GRATE MUST BE
INSTALLED WITH THE FLANGE DOWN. THE FRAME MAY BE
CAST INTO THE ADJUSTMENT SECTION.
4.KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2"
MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP
BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE
PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH
JOINT MORTAR IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-04.3.
5.ALL GRADE RINGS, RISERS, AND CASTINGS SHALL BE SET
IN MORTAR IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-04.3.
6.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE
CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE
ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO
AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF
THE SAME MATERIAL AS THE CONNECTING PIPE.
7.MORTAR SHALL BE MIXED AND APPLIED PER
MANUFACTURER'S DIRECTIONS.
8.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY
TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS
DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
LENGTH.
9.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND
REMAIN VISIBLE UPON COMPLETION.
CATCH BASIN FRAME AND VANED
GRATE PER STD. PLAN 204.00
RECTANGULAR OR CIRCULAR ADJUSTMENT
SECTION (TWO SECTIONS MAX.)
MORTAR, (TYP.), SEE NOTE 5
FLAT SLAB TOP
SEE NOTE 6, TYP.
REINFORCING STEEL, (TYP.)
GRAVEL BACKFILL FOR PIPE ZONE
BEDDING PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(3)
INTEGRAL BASE
PRECAST WITH RISER
STEPS OR
LADDER
4" MIN.
16" MAX.28" MAX.
48", 54", 60", 72", 84",
96", 120" OR 144"
12" (TYP.)
24"
MIN.12" MAX.
1" MIN.
2.5" MAX.
12"
6"
15' MAX. FOR
MAINTENANCE
SEPARATE BASE
PRECAST
"O" RING
12"
6"
CATCH BASIN DIMENSIONS
CATCH BASIN
DIAMETER
MIN. WALL
THICKNESS
MIN. BASE
THICKNESS
MAXIMUM
KNOCKOUT SIZE
MINIMUM
DISTANCE
BETWEEN
KNOCKOUTS
48"4"6"36"8"
54"4.5"8"42"8"
60"5"8"48"8"
72"6"8"60"12"
84"8"12"72"12"
96"8"12"84"12"
120"10"12"96"12"
144"12"12"108"12"
PIPE ALLOWANCES
CATCH BASIN
DIAMETER
PIPE MATERIAL WITH MAXIMUM INSIDE DIAMETER
CONCRETE ALL METAL CPSSP 1 SOLID WALL
PVC 2
PROFILE WALL
PVC 3
48"24"30"24"30"30"
54"30"36"30"36"36"
60"36"42"36"42"42"
72"42"54"42"48"48"
84"54"60"54"48"48"
96"60"72"60"48"48"
120"66"84"60"48"48"
144"78"96"60"48"48"
1 CORRUGATED POLYETHYLENE STORM SEWER PIPE (STD. SPEC. 9-05.20)
2 STD. SPEC. 9-05.12(1)
3 STD. SPEC. 9-05.12(2)
CATCH BASIN TYPE 2
STD. PLAN - 201.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
FRAME AND VANED GRATE
ADJUSTMENT SECTION
NOTES:
1.THE COVER OR GRATING OF A CATCH BASIN SHALL NOT BE ADJUSTED TO FINAL GRADE UNTIL THE FINAL ELEVATION OF THE PAVEMENT, GUTTER,
DITCH, OR SIDEWALK IN WHICH IT IS TO BE PLACED HAS BEEN ESTABLISHED, AND UNTIL PERMISSION THEREAFTER IS GIVEN BY THE ENGINEER TO
MORTAR IN PLACE IN ACCORDANCE WITH WSDOT/APWA STANDARD SPECIFICATION 7-05.3.
2.SHIMS SHALL NOT BE USED TO SET FRAME TO GRADE. THE USE OF SHIMS IS PROHIBITED.
3.A CONTINUOUS LAYER OF MORTAR SHALL BE PLACED BETWEEN ADJUSTMENT RINGS AND BRICKS PRIOR TO PLACEMENT.
4.ONLY BY APPROVAL OF THE CITY, THE USE OF BRICKS IS PERMITTED WHERE THE BRICKS ARE STAGGERED TO CREATE A RUNNING BOND OR 12 BOND.
5.BASE SECTION SHALL BE SEALED TO THE BOTTOM AREA OF THE ADJUSTMENT SECTION WITH MORTAR.
6.MORTAR SHALL MEET THE REQUIREMENTS OF WSDOT/APWA STANDARD SPECIFICATION 9-04.3.
7.PICK / LIFTING HOLES ARE TO BE GROUTED WATER TIGHT. USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH STANDARD
SPECIFICATION 9-20.3(2).
8.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S DIRECTIONS.
9.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF
SUFFICIENT LENGTH.
10.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON COMPLETION.
BASE SECTION
SEE NOTE 4
CLEAN SURFACE AND BOTTOM AREA.
PROVIDE UNIFORM CONTACT. THE SURFACE
AREA OF THE BASE SECTION MUST BE
MORTARED TO THE BOTTOM AREA OF THE
ADJUSTMENT SECTION
CATCH BASIN INSTALLATION
STD. PLAN - 202.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
ISOMETRIC VIEW
SECTION A
SEE NOTE 1
DETAIL SECTION A
TOP VIEW
FRAME DETAIL
1.THE INLET REQUIRES THE PRECAST CATCH BASIN TO BE ROTATED 90 DEGREES SO THAT THE
NARROW SIDE IS PARALLEL TO THE CURB. WHEN CALCULATING OFFSETS FROM THE CURB TO
CENTERLINE OF THE PRECAST CATCH BASIN, PLEASE NOTE THAT THE CENTERLINE OF THE
GRATE IS NOT THE CENTERLINE OF THE PRECAST CATCH BASIN.
2.THE DIMENSIONS OF THE FRAME AND HOOD MAY VARY SLIGHTLY AMONG DIFFERENT
MANUFACTURERS. HOOD UNITS SHALL MOUNT OUTSIDE OF THE FRAME. THE HOOD MAY
INCLUDE CASTING LUGS. THE TOP OF THE HOOD MAY BE CAST WITH A PATTERN. SAFETY BARS
ARE NOT ALLOWED ON THE HOOD.
3.ATTACH THE HOOD TO THE FRAME WITH TWO 3/4" × 2" HEX HEAD BOLTS, NUTS, AND OVERSIZE
WASHERS. THE WASHERS SHALL HAVE DIAMETERS ADEQUATE TO ASSURE FULL BEARING
ACROSS THE SLOTS.
4.FOR BOLT-DOWN GRATES, PROVIDE TWO HOLES IN THE FRAME THAT ARE VERTICALLY
ALIGNED WITH THE GRATE SLOTS. TAP EACH HOLE TO ACCEPT A 5/8" × - 11 NC × 2" ALLEN HEAD
CAP SCREW. LOCATION OF BOLT-DOWN HOLES VARIES AMONG DIFFERENT MANUFACTURERS.
SEE BOLT- DOWN DETAIL.
5.ONLY DUCTILE IRON VANED GRATES SHALL BE USED. SEE STANDARD PLANS 204.20 AND 204.30.
6.THIS PLAN IS INTENDED TO SHOW THE INSTALLATION DETAILS OF A MANUFACTURED
PRODUCT. IT IS NOT THE INTENT OF THIS PLAN TO SHOW THE SPECIFIC DETAILS NECESSARY
TO FABRICATE THE CASTINGS SHOWN ON THIS DRAWING.
NOTES:
1/2" MIN.
~ 5 1/2"
R1"
1" MIN.
OPENING
HEIGHT
4" MIN.
FRAME
TOP OF GRATE
SEE NOTE 3
HOOD LEVEL
1
6
1" MIN.
(TYP.)
29" MIN.
20 1/4"
1 1/2" MIN.
(TYP.)
24 1/4"29"
MIN.
SEE NOTE 4
(TYP.)
SEE NOTE 2
(TYP.)
CATCH BASIN
CL
GRATE CL
~ 3"
~ 7"
~ 34" (WIDE SIDE)
CATCH BASIN TYPE 1
~ 40" (WIDE SIDE)
CATCH BASIN TYPE 1L
CURB OR CURB AND GUTTER
MATCH TOP OF HOOD
TO TOP OF CURB (TYP.)
HOOD
DO NOT INSTALL SAFETY BAR / DEBRIS GUARD
20" x 24" VANED GRATE
FRAME
SEE DETAIL
BELOWA HOLE OR SLOT FOR
ATTACHING HOOD
OPEN CURB FACE FRAME AND GRATE
INSTALLATION
STD. PLAN - 203.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.THIS FRAME IS DESIGNED TO ACCOMMODATE 20" × 24" GRATES OR COVERS,
SEE STANDARD PLANS 204.10, 204.20, AND 204.30.
2.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND
COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN THE
FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS.
THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN HEAD CAP SCREW BY
BEING TAPPED, OR OTHER APPROVED MECHANISM. LOCATION OF
BOLT-DOWN HOLES VARIES BY MANUFACTURER.
3.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL
REQUIREMENTS.
GRATE
FRAME
SEE NOTE 2
RECESSED ALLEN
HEAD CAP SCREW
5/8" - 11 NC x 2"
SECTION A
DETAIL
TOP
ISOMETRIC VIEW
BOLT-DOWN HOLE (TYP.) ~ 5/8",
11 NC, SEE DETAIL AND NOTE 2
29 1/4"
25 1/4"
SECTION BOLT-DOWN DETAIL
24 1/4"
SEE DETAIL
3/4"
4 1/2"
1 5/8"
2 1/2"
1 5/8"
1 1/4"
3/4"
7/8"
1/8"ARECTANGULAR FRAME
STD. PLAN - 204.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
NOTES:
BOLT-DOWN SLOT DETAIL
SEE NOTE 1
SECTION A
TOP
SECTION B
SECTION C
1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES,
GRATES, AND COVERS, UNLESS OTHERWISE SPECIFIED.
PROVIDE TWO HOLES IN THE FRAME THAT ARE
VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS.
THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN
HEAD CAP SCREW BY BEING TAPPED, OR OTHER
APPROVED MECHANISM. LOCATION OF BOLT-DOWN HOLES
VARIES BY MANUFACTURER.
2.ALTERNATIVE REINFORCING DESIGNS ARE ACCEPTABLE IN
LIEU OF THE RIB DESIGN.
3.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR
ADDITIONAL REQUIREMENTS.
4.FOR FRAME DETAILS, SEE CITY OF RENTON STANDARD
PLAN 204.00.
24"
1 1/2"
3"
R26", SEE NOTE 2
BOLT-DOWN SLOT,
SEE DETAIL AND
NOTE 12 1/2" DIA. HOLE
1 5/8" MAX.
4 3/4"1 1/2"
3"
R39", SEE NOTE 2
1 1/2"
1/2" DIA. HANDLE
3/4" DIA. HOLE
5/8"
3/4"
4"
3 1/2"
5"
1/2"
3/4"
1 1/4"
5/8"A CB20"
ISOMETRIC
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
RECTANGULAR SOLID METAL COVER
STD. PLAN - 204.10
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
ISOMETRIC
SECTION B
TOPFOUNDRY NAMEDIFLOW
SECTION A
1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND
COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN
THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR
COVER SLOTS. THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN
HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED
MECHANISM. LOCATION OF BOLT-DOWN HOLES VARIES BY
MANUFACTURER.
2.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL
REQUIREMENTS.
3.FOR FRAME DETAILS, SEE STANDARD PLAN 204.00.FLOWFLOWBOLT-DOWN SLOT DETAIL
SEE NOTE 1
1/2"
3/4"
1 1/4"
5/8"
BOLT-DOWN SLOT,
SEE DETAIL AND
NOTE 1
20"
5"
5"
5"
3"
1"
3"
5"
5"
5"
DIRECTION OF FLOW
24"
7 OR 8 EQUAL SPACES
1 5/8" MAX.
A
BOUTFALL TO STREAM DUMP NO POLLUTANTS
3/8" RECESSED LETTERING
RECTANGULAR VANED GRATE
STD. PLAN - 204.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
ISOMETRIC
NOTES:
SECTION B
TOPFOUNDRY NAMEDIFLOW
SECTION A
1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND
COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN
THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR
COVER SLOTS. THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN
HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED
MECHANISM. LOCATION OF BOLT-DOWN HOLES VARIES BY
MANUFACTURER.
2.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL
REQUIREMENTS.
3.USE ONLY IN SAGS ON VERTICAL CURVES.
4.FOR FRAME DETAILS, SEE STANDARD PLAN 204.00.FLOWFLOWBOLT-DOWN SLOT DETAIL
SEE NOTE 1
1/2"
3/4"
1 1/4"
5/8"
BOLT-DOWN SLOT,
SEE DETAIL AND
NOTE 1
20"
5"
5"
5"
3"
1"
3"
5"
5"
5"
24"
1 5/8" MAX.
4 EQUAL SPACES 4 EQUAL SPACES
A
BOUTFALL TO STREAM DUMP NO POLLUTANTS
3/8" RECESSED LETTERING
RECTANGULAR BI-DIRECTIONAL
VANED GRATE
STD. PLAN - 204.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
COVER SECTION VIEW ASTM A48 CL35B00371780MO/DA/YR X3717C1PTEON BOLTING DETAIL
GASKET GROOVE DETAIL
FRAME SECTION VIEW
COVER BOTTOM VIEW
PLAN VIEW
DRAINIFCOMADEINUSA EJIW
DUMPNO P O L L U T A N T S -DRAINS
T
O
S
T
REAMNOTES:
1.ALL COVERS SHALL BE LOCKING LID PER EJ No. 3717C1
OR APPROVED EQUAL.
2.THIS COVER SHALL ONLY BE USED FOR STRUCTURES
WITHIN PRIVATE DEVELOPMENTS OUTSIDE OF PUBLIC
RIGHT-OF-WAY.
1/2" LETTERING
BOLT HOLES - 3 PLACES
EQUALLY SPACED 120° APART ON
23 1/16" DIA. B.C.
1 1/4" LETTERING
(1) 1" DIA. PICKHOLE
25" DIA.
3/4"
1"
2 1/2"
8 3/4"
(TYP.)
(3) BLT SOC. (ALLEN HEAD)
5/8"-11 x 1.5 SS RUBBER
WASHER
5/8"
25 1/4" DIA.
26 1/2" DIA.
23 3/8" DIA. CL OPEN
27 5/16" DIA.
34 1/8" DIA.
1 1/16"
6"
1/8"
1/4"1 1/16"
R1/8"
1/4" DIA. NEOPRENE GASKET
SKID GROOVE PATTERN DETAIL
≈ 1/2"≈ 1/4"
≈ 3/16"
SKID GROOVE PATTERN
STORM ROUND FRAME AND COVER
(PRIVATE)
STD. PLAN - 204.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
COVER SECTION VIEW ASTM A48 CL35B00371780MO/DA/YR X3717C1PTEON BOLTING DETAIL
GASKET GROOVE DETAIL
FRAME SECTION VIEW
COVER BOTTOM VIEW
PLAN VIEW
DRAINIFCOMADEINUSA EJIW
DUMPNO P O L L U T A N T S -DRAINS
T
O
S
T
REAMR E N T O N
NOTES:
1.ALL COVERS SHALL BE LOCKING LID PER EJ No. 3717C1
OR APPROVED EQUAL.
1/2" LETTERING
BOLT HOLES - 3 PLACES
EQUALLY SPACED 120° APART ON
23 1/16" DIA. B.C.
1 1/4" LETTERING
(1) 1" DIA. PICKHOLE
25" DIA.
3/4"
1"
2 1/2"
8 3/4"
(TYP.)
(3) BLT SOC. (ALLEN HEAD)
5/8"-11 x 1.5 SS RUBBER
WASHER
5/8"
25 1/4" DIA.
26 1/2" DIA.
23 3/8" DIA. CL OPEN
27 5/16" DIA.
34 1/8" DIA.
1 1/16"
6"1/8"
1/4"1 1/16"
R1/8"
1/4" DIA. NEOPRENE GASKET
STORM ROUND FRAME AND COVER
(PUBLIC)
STD. PLAN - 204.50
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
5"
ECCENTRIC CONE SECTION
72" FLAT SLAB TOP
RECTANGULAR ADJUSTMENT SECTION
CIRCULAR ADJUSTMENT SECTION
PREFABRICATED LADDER
STEP
84" or 96" FLAT SLAB TOP
NOTES:
1.AS AN ACCEPTABLE ALTERNATIVE TO REBAR, WIRE MESH HAVING A MINIMUM AREA OF
0.12 SQUARE INCHES PER FOOT MAY BE USED FOR ADJUSTMENT SECTIONS.
48", 54", or 60" FLAT SLAB TOP
20"x24", 24" DIA.,
48" DIA., OR 54"
DIA. HOLE
#6 BARS @ 7" SPACING
12"
2" (TYP.)
1" MIN.
2 1/2" MAX.
12" (TYP.)
12"
9"
6"
48"
MAX.
24"
MIN.
#5 BARS @ 6" SPACING
20"x24", 24" DIA.,
48" DIA., OR 54"
DIA. HOLE
8"
2" (TYP.)
1" MIN.
2 1/2" MAX.
TYPICAL ORIENTATION
FOR ACCESS AND STEPS
6"
9 1/2" MAX.
12"
MIN.
48" MIN.
24"
MIN.
18" MIN.
42" MAX.
#4 BARS @ 6" SPACING
20"x24" OR
24" DIA. HOLE
8"
2" (TYP.)
1" MIN.
2 1/2" MAX.
34"
ONE #3 BAR HOOP FOR 6"
HEIGHT INCREMENT (SPACED
EQUALLY), SEE NOTE 1
34"
24"
30
"
20
"
5"
5"
1", 2", 4", 6", 12", OR 24"
ONE #3 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
1", 2", 4", 6",
12", OR 24"
MISCELLANEOUS DETAILS FOR
DRAINAGE STRUCTURES
STD. PLAN - 204.60
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLAN
SECTION A SECTION B
NOTES:
TOP
1/4
1/4 (TYP.)
SIDE END
10
1
1.THE TOP OF THE INLET SHALL BE PLACED AT GROUND LEVEL TO
PRESENT AN UNOBSTRUCTED DITCH OR MEDIAN SECTION.
2.BEVEL OR ROUND EXPOSED CONCRETE EDGES 1/2".
3.PIPES MAY ENTER THROUGH THE KNOCKOUTS AT ANY
REASONABLE ANGLE PROVIDED THE OUTSIDE OF THE PIPE CAN
BE CONTAINED WITHIN THE KNOCKOUT PROVIDED.
4.THE GRADE LINE OF THE LOWEST INLET PIPE SHALL ENTER THE
STRUCTURE AT AN ELEVATION EQUAL TO OR HIGHER THAN THE
GRADE LINE OF THE OUTLET PIPE.
5.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET
HAS BEEN PLACED. USE GROUT TYPE 2 FOR NON-SHRINK
APPLICATIONS IN ACCORDANCE WITH STANDARD SPECIFICATION
9-20.3(2).
6.THE STEEL ANGLES SHALL BE SET SO THAT EACH BEARING BAR
OF THE GRATE SHALL HAVE FULL SEATING ON BOTH ENDS. THE
FINISHED TOP OF CONCRETE SHALL BE EVEN WITH THE GRATE
SURFACE.
7.THE AMOUNT, TYPE, AND GRADE OF REINFORCING STEEL IS THE
RESPONSIBILITY OF THE MANUFACTURER.
8.THE INSIDE WALL TAPER FOR FORM REMOVAL SHALL NOT
RESULT IN ANY WALL SECTION THINNER THAN 6" EXCEPT IN PIPE
KNOCKOUT AREAS.
9.PRECAST INLETS SHALL BE MARKED WITH THE
MANUFACTURER'S IDENTIFICATION ON THE INSIDE OF THE
STRUCTURE IN A READILY ACCESSIBLE LOCATION.
END (ANCHOR STUD OPTION)
1/4
SECTION ON DITCH LINE
DIKE INSTALLATION FOR PREFERRED SLOPE
SEE CONTRACT FOR
BACKSLOPE DETAILS
24"
MIN.
12" MIN.
TYPE 3 GRATE SHOWN
DITCH LINE
DITCH
84"
30"42"
GRATE SUPPORT (TYP.),
SEE DETAIL
~ 42"
6"
MIN.
2"
MIN.
KNOCKOUT
Ø34"
39"6" MIN.
48"
12"
4"
6" MIN.
3"
36"
18"
12"
4" x 3" x 1/2" x 35 1/4"
STEEL ANGLE
4"
4"
1 1/2"
GRATE SUPPORT DETAIL (FOUR SUPPORTS REQUIRED)
4" x 3" x 3/8" STEEL PLATE,
TACK WELD TO ANGLE
5 1/2" x 1" x 1/4"
STEEL ANGLE
ISOMETRIC (SHOWN
WITH TYPE 1 GRATE)
1/2" DIA. x 4" STEEL STUD,
PLACE ALONG SUPPORT AS
SHOWN FOR ANGLES
A
BDROP INLET TYPE 1
STD. PLAN - 205.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
PLAN
SECTION A
1.THE TOP OF THE INLET SHALL BE PLACED AT GROUND LEVEL TO PRESENT AN
UNOBSTRUCTED DITCH OR MEDIAN SECTION.
2.BEVEL OR ROUND EXPOSED CONCRETE EDGES 1/2".
3.PIPES MAY ENTER THROUGH THE KNOCKOUTS AT ANY REASONABLE ANGLE
PROVIDED THE OUTSIDE OF THE PIPE CAN BE CONTAINED WITHIN THE KNOCKOUT
PROVIDED.
4.THE GRADE LINE OF THE LOWEST INLET PIPE SHALL ENTER THE STRUCTURE AT AN
ELEVATION EQUAL TO OR HIGHER THAN THE GRADE LINE OF THE OUTLET PIPE.
5.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS BEEN PLACED.
USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH
STANDARD SPECIFICATION 9-20.3(2)
6.THE STEEL ANGLES SHALL BE SET SO THAT EACH BEARING BAR OF THE GRATE SHALL
HAVE FULL SEATING ON BOTH ENDS. THE FINISHED TOP OF CONCRETE SHALL BE
EVEN WITH THE GRATE SURFACE.
7.THE AMOUNT, TYPE, AND GRADE OF REINFORCING STEEL IS THE RESPONSIBILITY OF
THE MANUFACTURER.
8.THE INSIDE WALL TAPER FOR FORM REMOVAL SHALL NOT RESULT IN ANY WALL
SECTION THINNER THAN 6" EXCEPT IN PIPE KNOCKOUT AREAS.
9.PRECAST INLETS SHALL BE MARKED WITH THE MANUFACTURER'S IDENTIFICATION ON
THE INSIDE OF THE STRUCTURE IN A READILY ACCESSIBLE LOCATION.
SECTION B
TOP
1/4
1/4 (TYP.)
SIDE END
1/4
GRATE SUPPORT (TYP.),
SEE DETAIL
34" DIA.
KNOCKOUT
30"6" MIN.
48"
12"
4"
6" MIN.
3"
36"
18"
12"
4" x 3" x 1/2" x 35 1/4"
STEEL ANGLE
4"
4"
1 1/2"
GRATE SUPPORT DETAIL
(FOUR SUPPORTS REQUIRED)
4" x 3" x 3/8" STEEL PLATE,
TACK WELD TO ANGLE
5 1/2" x 1" x 1/4"
STEEL ANGLE
ISOMETRIC (SHOWN
WITH TYPE 2 GRATE)
1/2" DIA. x 4" STEEL STUD,
PLACE ALONG SUPPORT AS
SHOWN FOR ANGLES
10'-0"
30"42"
DITCH
2" MIN.
A
BEND
(ANCHOR STUD OPTION)
DROP INLET TYPE 2
STD. PLAN - 205.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
TYPE 1 TYPE 2
TYPE 3
SECTION C
SECTION A1/4 SECTION B
ISOMETRICS
TYPE 2
TYPE 3
TYPE 1
(TYP.)
3 1/2" x 1/2" x 34 1/2"
STEEL PLATE (TYP.)1 1/2" MAX.
34 1/4"
5 1/4"THREE SPACES 5 1/4"
34 1/2"
OPTIONAL 1" MAX. VENT HOLES
ON BOTTOM FOR GALVANIZING
3 1/2" x 1/2" x 34 1/2"
STEEL PLATE (TYP.)1 1/2" MAX.
34 1/4"
3 1/2"FIVE SPACES 3 1/2"
34 1/2"
OPTIONAL 1" MAX. VENT
HOLES ON BOTTOM FOR
GALVANIZING
3 1/2" x 31/2" x 5/16" x 33 1/4"
STRUCTURAL TUBING (TYP.)
3 1/2"
GRIND TOP AND BOTTOM
FLUSH AFTER WELDING
1/4(TYP.)
3 1/2" x 31/2" x 5/16" x 33 1/4"
STRUCTURAL TUBING (TYP.)
3 1/2"
GRIND TOP AND BOTTOM
FLUSH AFTER WELDING
34 1/4"
34 1/2"
2" (TYP.)2" (TYP.)
3 1/2" x 1/2" x 34 1/2"
STEEL PLATE (TYP.)
1/4(TYP.)
3 1/2"
3 1/2" x 1/2" x 34 1/2"
STEEL PLATE (TYP.)
A B
C
GRATES FOR DROP INLET
STD. PLAN - 205.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
9
1
3
1
CROSS SECTION
4' MIN.
NOTES:
OVERFLOW SPILLWAY 6' MIN. WIDTH
24" SETTLING DEPTH & 12" DEPTH OF 2"-4" ROCK, 12" DEPTH OF 3/4"-1 1/2" WASHED GRAVEL.
18" SEDIMENT STORAGE
12" DEPTH 2" - 4" ROCK
12" DEPTH 3/4" - 1 1/2"
WASHED GRAVEL
FILTER FABRIC FENCING
24" MIN. SETTLING DEPTH
1.5' MIN. SEDIMENT STORAGE
3.5' - 5'5' MAX.
12" OVERFLOW
DEPTH
OUTFLOW CHANNEL IF
CONSTRUCTED BY
EXCAVATION
1.MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM
SEDIMENT TRAP
STD. PLAN - 211.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.TO ESTABLISH CLEARING LIMITS, STAKE AND WIRE FENCE MAY BE USED:
1.1.1.AT THE BOUNDARY OF CRITICAL AREAS, THEIR BUFFERS AND OTHER AREAS REQUIRED TO BE LEFT UNCLEARED.
1.1.2.AS NECESSARY TO CONTROL VEHICLE ACCESS TO AND ON THE SITE.
2.MAINTENANCE AND REQUIREMENTS
2.1.IF THE FENCE IS DAMAGED OR VISIBILITY REDUCED, IT SHALL BE REPAIRED OR REPLACED IMMEDIATELY AND VISIBILITY RESTORED.
2.2.DISTURBANCE OF A CRITICAL AREA, CRITICAL BUFFER AREA, NATIVE GROWTH RETENTION AREA, OR OTHER AREA REQUIRED TO BE
LEFT UNDISTURBED SHALL BE REPORTED TO THE CITY OF RENTON FOR RESOLUTION.
2.3.THE CITY MAY REQUIRE MORE SUBSTANTIAL FENCING IF THE FENCE DOES NOT PREVENT ENCROACHMENT INTO THOSE AREAS THAT
ARE NOT TO BE DISTURBED.
NOTES
SURVEY FLAGGINGBAILING WIRE
DO NOT NAIL OR STAPLE WIRE
TO TREES
METAL FENCE POST (TYP.)3' MIN.
10' - 20'
12" MIN.
STAKE AND WIRE FENCE
STD. PLAN - 212.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
3
1
MAX.
"TRACKING" WITH MACHINERY UP AND DOWN
THE SLOPE PROVIDES GROOVES THAT WILL
CATCH SEED, RAINFALL AND REDUCE RUNOFF.
TRACKING
1.CONDITIONS OF USE
1.1.ALL SLOPES STEEPER THAN 3H:1V AND GREATER THAN 5 VERTICAL FEET REQUIRE SURFACE ROUGHENING TO A DEPTH OF 2 TO 4 INCHES PRIOR TO SEEDING.
1.2.AREAS THAT WILL NOT BE STABILIZED IMMEDIATELY MAY BE ROUGHENED TO REDUCE RUNOFF VELOCITY UNTIL SEEDING TAKES PLACE.
1.3.SLOPES WITH A STABLE ROCK FACE DO NOT REQUIRE ROUGHENING.
1.4.SLOPES WHERE MOWING IS PLANNED SHOULD NOT BE EXCESSIVELY ROUGHENED.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.DISTURBED AREAS THAT WILL NOT REQUIRE MOWING MAY BE STAIR-STEP GRADED, GROOVED, OR LEFT ROUGH AFTER FILLING.
2.2.STAIR STEP GRADING IS PARTICULARLY APPROPRIATE IN SOILS CONTAINING LARGE AMOUNTS OF SOFT ROCK. STAIR SHOULD BE WIDE ENOUGH TO WORK WITH
STANDARD EARTH MOVING EQUIPMENT. STAIRS STEPS MUST BE ON CONTOURS OR GULLIES WILL FORM ON THE SLOPE.
2.3.AREAS THAT WILL BE MOWED, MAY HAVE SMALL FURROWS LEFT BY DISKING, HARROWING, RAKING, OR SEED-PLANTING MACHINERY OPERATED ON THE CONTOUR.
2.4.GRADED AREAS WITH SLOPES GREATER THAN 3H:1V BUT LESS THAN 2H:1V SHOULD BE ROUGHENED BEFORE SEEDING BY TRACKING.
2.5.TRACKING IS DONE BY OPERATING EQUIPMENT UP AND DOWN THE SLOPE TO LEAVE HORIZONTAL DEPRESSIONS IN THE SOIL.
3.MAINTENANCE STANDARDS
3.1.PERIODICALLY CHECK ROUGHENED, SEEDED, PLANTED AND MULCHED SLOPES FOR RILLS AND GULLIES, PARTICULARLY AFTER A SIGNIFICANT STORM EVENT. FILL
THESE AREAS SLIGHTLY ABOVE THE ORIGINAL GRADE, THEN RE-SEED AND MULCH AS SOON AS POSSIBLE.
NOTES:
50'
6" MIN.
CONTOUR FURROWS
GROOVES WILL CATCH SEED,
FERTILIZER, MULCH, RAINFALL,
AND DECREASE RUNOFF
SURFACE ROUGHENING
STD. PLAN - 213.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.FOR PERMANENT STABILIZATION OF SLOPES 2H:1V OR GREATER AND WITH MORE THAN 10 FEET OF VERTICAL RELIEF.
1.2.IN CONJUNCTION WITH SEED FOR FINAL STABILIZATION OF A SLOPE, NOT FOR TEMPORARY COVER. HOWEVER, THEY MAY BE USED FOR TEMPORARY APPLICATIONS AS
LONG AS THE PRODUCT IS NOT DAMAGED BY REPEATED HANDLING.
1.3.THE APPLICATION OF APPROPRIATE NETTING OR BLANKET TO DRAINAGE DITCHES AND SWALES CAN PROTECT BARE SOIL FROM CHANNELIZED RUNOFF WHILE
VEGETATION IS ESTABLISHED. NETS AND BLANKETS CAN ALSO CAPTURE A GREAT DEAL OF SEDIMENT DUE TO THEIR OPEN, POROUS STRUCTURE. SYNTHETIC NETS AND
BLANKETS MAY BE USED TO PERMANENTLY STABILIZE CHANNELS AND MAY PROVIDE A COST-EFFECTIVE, ENVIRONMENTALLY PREFERABLE ALTERNATIVE TO RIPRAP.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.INSTALLATION IS CRITICAL TO THE EFFECTIVENESS OF THIS PRODUCT. IF GOOD GROUND CONTACT IS NOT ACHIEVED, RUNOFF CAN CONCENTRATE UNDER THE
PRODUCT, RESULTING IN SIGNIFICANT EROSION.
2.2.JUTE MATTING MUST BE USED IN CONJUNCTION WITH MULCH. EXCELSIOR, WOVEN STRAW BLANKETS, AND COIR (COCONUT FIBER) BLANKETS MAY BE INSTALLED
WITHOUT MULCH. OTHER TYPES OF PRODUCTS WILL BE EVALUATED INDIVIDUALLY.
2.3.PURELY SYNTHETIC BLANKETS ARE ALLOWED, BUT SHALL ONLY BE USED FOR LONG-TERM STABILIZATION OF WATERWAYS. THE ORGANIC BLANKETS ARE BETTER FOR
SLOPE PROTECTION AND SHORT-TERM WATERWAY PROTECTION.
2.4.DO NOT STRETCH BLANKET/MATTINGS TIGHT - ALLOW THE ROLLS TO MOLD TO ANY IRREGULARITIES.
2.5.SLOPE SURFACE SHALL BE SMOOTH BEFORE PLACEMENT FOR PROPER SOIL CONTACT.
2.6.ANCHOR, STAPLE, AND INSTALL CHECK SLOTS AS PER MANUFACTURER'S RECOMMENDATION.
2.7.AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH.
2.8.LIME, FERTILIZE, AND SEED BEFORE INSTALLATION.
3.MAINTENANCE STANDARDS
3.1.GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND THERE MUST NOT BE EROSION BENEATH THE NET OR BLANKET.
3.2.AREAS OF THE NET OR BLANKET THAT ARE DAMAGED OR NOT IN CLOSE CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED.
3.3.IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL BE FIXED AND THE ERODED AREA PROTECTED.
NOTES:
4" MIN. OVERLAP
6" MIN. OVERLAP
WATERWAY INSTALLATIONS OF NETS
AND BLANKETS
STD. PLAN - 213.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.FOR PERMANENT STABILIZATION OF SLOPES 2H:1V OR GREATER AND WITH MORE THAN 10 FEET OF VERTICAL RELIEF.
1.2.IN CONJUNCTION WITH SEED FOR FINAL STABILIZATION OF A SLOPE, NOT FOR TEMPORARY COVER. HOWEVER, THEY MAY BE USED FOR TEMPORARY APPLICATIONS AS
LONG AS THE PRODUCT IS NOT DAMAGED BY REPEATED HANDLING.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.INSTALLATION IS CRITICAL TO THE EFFECTIVENESS OF THIS PRODUCT. IF GOOD GROUND CONTACT IS NOT ACHIEVED, RUNOFF CAN CONCENTRATE UNDER THE
PRODUCT, RESULTING IN SIGNIFICANT EROSION.
2.2.JUTE MATTING MUST BE USED IN CONJUNCTION WITH MULCH. EXCELSIOR, WOVEN STRAW, BLANKETS, AND COIR (COCONUT FIBER) BLANKETS MAY BE INSTALLED
WITHOUT MULCH.
2.3.PURELY SYNTHETIC BLANKETS ARE ALLOWED, BUT SHALL ONLY BE USED FOR LONG-TERM STABILIZATION OF WATERWAYS. THE ORGANIC BLANKETS ARE BETTER FOR
SLOPE PROTECTION AND SHORT-TERM WATERWAY PROTECTION BECAUSE THEY RETAIN AND PROVIDE ORGANIC MATTER TO THE SOIL, SUBSTANTIALLY IMPROVING THE
SPEED AND SUCCESS OF RE-VEGETATION.
2.4.DO NOT STRETCH BLANKETS/MATTINGS TIGHT - ALLOW THE ROLLS TO MOLD TO ANY IRREGULARITIES.
2.5.SLOPE SURFACE SHALL BE SMOOTH BEFORE PLACEMENT FOR PROPER SOIL CONTACT.
2.6.STAPLING PATTERN AS PER MANUFACTURER'S RECOMMENDATION.
2.7.IF THERE IS A BERM AT THE TOP OF SLOPE, ANCHOR UPSLOPE OF THE BERM.
2.8.FOR SLOPES LESS THAN 3H:1V, ROLLS MAY BE PLACED IN HORIZONTAL STRIPS.
2.9.LIME, FERTILIZE, AND SEED BEFORE INSTALLATION. PLANTING OF SHRUBS, TREES, ETC. SHOULD OCCUR AFTER INSTALLATION.
3.MAINTENANCE STANDARDS
3.1.GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND THERE MUST NOT BE EROSION BENEATH THE NET OR BLANKET.
3.2.AREAS OF THE NET OR BLANKET THAT ARE DAMAGED OR NOT IN CLOSE CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED.
3.3.IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL BE FIXED AND THE ERODED AREA PROTECTED.
NOTES:
2" MIN. OVERLAP
6" MIN. OVERLAP
ANCHOR IN 6" x 6" MIN. TRENCH AND
STAPLE AT 12" INTERVALS
BRING MATERIAL DOWN TO A LEVEL AREA, TURN THE
END UNDER 4", AND STAPLE AT 12" INTERVALS
STAPLE OVERLAPS 5' MAX. SPACING
SLOPE INSTALLATIONS OF NETS AND
BLANKETS
STD. PLAN - 213.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.PLASTIC COVERING MAY BE USED ON DISTURBED AREAS THAT REQUIRE COVER MEASURES FOR LESS THAN 30 DAYS.
1.2.PLASTIC IS PARTICULARLY USEFUL FOR PROTECTING CUT AND FILL SLOPES AND STOCKPILES.
1.3.CLEAR PLASTIC SHEETING MAY BE USED OVER NEWLY-SEEDED AREAS TO CREATE A GREENHOUSE EFFECT AND ENCOURAGE GRASS GROWTH.
CLEAR PLASTIC SHOULD NOT BE USED FOR THIS PURPOSE DURING THE SUMMER MONTHS.
1.4.THIS METHOD SHALL NOT BE USED UPSLOPE OF AREAS THAT MIGHT BE ADVERSELY IMPACTED BY RUNOFF. SUCH AREAS INCLUDE STEEP AND
UNSTABLE SLOPES.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.PLASTIC SHEETING SHOULD HAVE A MINIMUM THICKNESS OF 0.06 MILLIMETERS.
2.2.IF EROSION AT THE TOE OF A SLOPE IS LIKELY, A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE PROTECTION SHALL BE INSTALLED AT THE TOE
OF THE SLOPE IN ORDER TO REDUCE THE VELOCITY OF RUNOFF.
2.3.TIRES, SAND BAGS, OR EQUIVALENT MAY BE USED TO WEIGHT PLASTIC.
2.4.SEAMS BETWEEN SHEETS MUST OVERLAP A MINIMUM OF 12 INCHES AND BE WEIGHTED OR TAPED.
3.MAINTENANCE STANDARDS
3.1.TORN SHEETS MUST BE REPLACED AND OPEN SEAMS REPAIRED.
3.2.IF THE PLASTIC BEGINS TO DETERIORATE DUE TO ULTRAVIOLET RADIATION, IT MUST BE COMPLETELY REMOVED AND REPLACED.
3.3.WHEN THE PLASTIC IS NO LONGER NEEDED, IT SHALL BE COMPLETELY REMOVED.
NOTES:
10' MAX..
10' MAX.
TOE IN SHEETING IN
4" x 4" MIN. TRENCH
PROVIDE ENERGY DISSIPATION
AT TOE IF EROSION IS LIKELY
SANDBAG (TYP.)
PLASTIC COVERING
STD. PLAN - 213.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
WOODEN STAKE
LIVE STAKE
ROLL SPACING
DEPENDS ON SOIL
TYPE AND SLOPE
STEEPNESS
STRAW ROLLS MUST BE
PLACED ALONG SLOPE
CONTOURS
4'
3'-30', SEE NOTE 2.3
SEDIMENT, ORGANIC MATTER,
AND NATIVE SEEDS ARE
CAPTURED BEHIND THE ROLLS
ADJACENT ROLLS SHALL
TIGHTLY ABUT
8"-10" DIA.
3"-5", SEE NOTE 2.2
NOTES:
1.CONDITIONS OF USE
1.1.INSTALL ON DISTURBED AREAS THAT REQUIRE IMMEDIATE EROSION PROTECTION.
1.2.USE ON SLOPES REQUIRING STABILIZATION UNTIL PERMANENT VEGETATION CAN BE ESTABLISHED.
1.3.CAN BE USED ALONG THE PERIMETER OF A PROJECT, AS A CHECK DAM IN UNLINED DITCHES AND AROUND TEMPORARY STOCKPILES.
1.4.WATTLES CAN BE STAKED TO THE GROUND USING WILLOW CUTTINGS FOR ADDED REVEGETATION.
1.5.RILLING CAN OCCUR BENEATH AND BETWEEN WATTLES IF NOT PROPERLY ENTRENCHED, ALLOWING WATER TO PASS BELOW AND BETWEEN WATTLES.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.IT IS CRITICAL THAT WATTLES ARE INSTALLED PERPENDICULAR TO THE FLOW DIRECTION AND PARALLEL TO THE SLOPE CONTOUR.
2.2.NARROW TRENCHES SHOULD BE DUG ACROSS THE SLOPE, ON CONTOUR, TO A DEPTH OF 3 TO 5 INCHES ON CLAY SOILS AND SOILS WITH GRADUAL SLOPES.
ON LOOSE SOILS, STEEP SLOPES, AND DURING HIGH RAINFALL EVENTS, THE TRENCHES SHOULD BE DUG TO A DEPTH OF 5 TO 7 INCHES, OR 1/2 TO 2/3 OF THE
THICKNESS OF THE WATTLE.
2.3.START CONSTRUCTION OF TRENCHES AND INSTALLING WATTLES FROM THE BASE OF THE SLOPE AND WORK UPHILL. EXCAVATED MATERIAL SHOULD BE
SPREAD EVENLY ALONG THE UPHILL SLOPE AND COMPACTED USING HAND TAMPING OR OTHER METHOD. CONSTRUCT TRENCHES AT CONTOUR INTERVALS
OF 3 TO 30 FEET APART DEPENDING ON THE STEEPNESS OF THE SLOPE, SOIL TYPE, AND RAINFALL. THE STEEPER THE SLOPE THE CLOSER TOGETHER THE
TRENCHES SHOULD BE CONSTRUCTED. VERTICAL DISTANCE BETWEEN WATTLES IS NOT TO EXCEED 10 FEET.
2.4.INSTALL THE WATTLES SNUGLY INTO THE TRENCHES AND ABUT TIGHTLY END TO END. DO NOT OVERLAP THE ENDS.
2.5.INSTALL STAKES AT EACH END OF THE WATTLE, AND AT 4 FOOT CENTERS ALONG THE ENTIRE LENGTH OF THE WATTLE.
2.6.IF REQUIRED, INSTALL PILOT HOLES FOR THE STAKES USING A STRAIGHT BAR TO DRIVE HOLES THROUGH THE WATTLE AND INTO THE SOIL.
2.7.AT A MINIMUM, WOODEN STAKES SHOULD BE APPROXIMATELY 3/4 X 3/4 X 24 INCHES. WILLOW CUTTINGS OR 3/8-INCH REBAR CAN ALSO BE USED FOR STAKES.
2.8.STAKES SHOULD BE DRIVEN THROUGH THE MIDDLE OF THE WATTLE, LEAVING 2 TO 3 INCHES OF THE STAKE PROTRUDING ABOVE THE WATTLE.
3.MAINTENANCE STANDARDS
3.1.INSPECT WATTLES PRIOR TO FORECASTED RAIN, DAILY DURING EXTENDED RAIN EVENTS, AFTER RAIN EVENTS, WEEKLY DURING THE WET SEASON, AND AT
TWO WEEK INTERVALS AT ALL OTHER TIMES OF THE YEAR.
3.2.REPAIR OR REPLACE SPLIT, TORN, RAVELING, OR SLUMPING WATTLES
3.3.REMOVE SEDIMENT ACCUMULATIONS WHEN EXCEEDING 1/2 THE HEIGHT BETWEEN THE TOP OF THE WATTLE AND THE GROUND SURFACE.
STRAW WATTLES
STD. PLAN - 213.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2.SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED
FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE.
2.2.STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED
FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2.3.WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V
2.4.IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4" TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND
SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE.
2.5.FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE.
3.MAINTENANCE STANDARDS
3.1.ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY.
3.2.IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
3.3.IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND THEN CAUSING
CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT.
3.4.SEDIMENT MUST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH.
3.5.IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
NOTES:
JOINTS IN FILTER FABRIC SHALL BE SPLICED AT
POSTS. USE STAPLES, WIRE RINGS, OR
EQUIVALENT TO ATTACH FABRIC TO POSTS
2"x2" 14 GAUGE WIRE, OR
EQUIVALENT, IF STANDARD
STRENGTH FABRIC USED
FILTER FABRIC 2' MIN.
12" MIN.
4"x4" MIN. TRENCH
BACKFILL TRENCH WITH NATIVE SOIL
OR 3/4" TO 1-1/2" WASHED GRAVEL
2"x4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.)
6' MAX.
POST SPACING MAY BE INCREASED
TO 8' IF WIRE BACKING IS USED
AOS (ASTM D4751)30-100 SIEVE SIZE (0.60-0.15mm) FOR SILT FILM
50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS
WATER PERMITTIVITY (ASTM D4491)0.02 SEC-1 MINIMUM
GRAB TENSILE STRENGTH (ASTM D4632)180 LBS. MIN. FOR EXTRA STRENGTH FABRIC
100 LBS. MIN. FOR STANDARD STRENGTH FABRIC
GRAB TENSILE ELONGATION (ASTM D4632)30% MAX. (WOVEN)
ULTRAVIOLET RESISTANCE (ASTM D4355)70% MIN.
SILT FENCE
STD. PLAN - 214.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
ATTACHMENT DETAILS:
1.GATHER FABRIC AT POSTS, IF NEEDED.
2.UTILIZE THREE TIES PER POST, ALL WITHIN TOP 8" OF
FABRIC.
3.POSITION EACH TIE DIAGONALLY, PUNCTURING HOLES
VERTICALLY A MINIMUM OF 1" APART.
4.HANG EACH TIE ON A POST NIPPLE AND TIGHTEN
SECURELY. USE CABLE TIES (50 LBS) OR SOFT WIRE.
TOP OF FABRIC
BELT
DIAGONAL ATTACHMENT
DOUBLES STRENGTH
FLOW
STEEL SUPPORT POSTNOTES:
1.POST SPACING: 7' MAX. ON OPEN RUNS 4' MAX. ON POOLING AREAS.
2.POST DEPTH: AS MUCH BELOW GROUND AS FABRIC ABOVE GROUND.
3.PONDING HEIGHT 24" MAX. ATTACH FABRIC TO UPSTREAM SIDE OF POST.
4.DRIVE OVER EACH SIDE OF SILT FENCE 2 TO 4 TIMES WITH DEVICE EXERTING 60 P.S.I. OR GREATER.
5.NO MORE THAN 24" OF A 36" FABRIC ROLL IS ALLOWED ABOVE GROUND.
6.VIBRATORY PLOW IS NOT ACCEPTABLE BECAUSE OF HORIZONTAL COMPACTION.
100% COMPACTION
EACH SIDE
OPERATION
SILT FENCE
TOP 8"
200-300mm
(8"-12")
ROLL OF SILT FENCE
PLOW
FABRIC ABOVE GROUND
SLICING BLADE (18mm (11/16") WIDTH)
HORIZONTAL CHISEL POINT (76mm (3") WIDTH)
SILT FENCE INSTALLATION BY SLICING
STD. PLAN - 214.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLAN VIEW
ELEVATION VIEW
SECTION A
NOTES:
6" SEWER PIPE WITH BUTTERFLY VALVES
8'x8' SUMP WITH 5' OF CATCH
TO ACCOMMODATE
CLEANING BY TRACKHOE
3" TRASH PUMP WITH FLOATS ON SUCTION HOSE
2" SCH 40
1 1/2" SCH 40 FOR SPRAYERS
MIDPOINT SPRAY
NOZZLES, IF NEEDED
2% SLOPE5H:1V5H:1V2% SLOPE 1H:1V1H:1V15' ATB APRON TO
PROTECT GROUND FROM
SPLASHING WATER ATB CONSTRUCTION ENTRANCE
ASPHALT CURB ON THE LOW ROAD SIDE
TO DIRECT WATER BACK TO POND
6" SLEEVE UNDER ROAD
BALL VALVE (TYP.)
CURB
6" SLEEVE
15'15'20'15'50'
5'
18'
12'
3'
1
1
LOCATE INVERT OF TOP PIPE 12" TO
14" ABOVE BOTTOM OF WHEEL WASH
8'x8' SUMP TO ACCOMMODATE
CLEANING BY TRACKHOE
DRAIN PIPE WITH
BUTTERFLY VALVE
WATER LEVEL,
12" TO 14" DEEPA6" ATB OVER CRUSHED BASE MATERIAL
OR 8" ATB OVER A GOOD SUBGRADE 5% - 10%SLOPE1.CONDITIONS OF USE
1.1.WHEN A STABILIZED CONSTRUCTION ENTRANCE IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT, WHEEL WASHING IS GENERALLY AN EFFECTIVE
EROSION AND SEDIMENT CONTROL METHOD AND BMP WHEN INSTALLED WITH CAREFUL ATTENTION TO TOPOGRAPHY.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.USE A LOW CLEARANCE TRUCK TO TEST THE WHEEL WASH BEFORE PAVING. EITHER A BELLY DUMP OR LOWBOY WILL WORK WELL TO TEST CLEARANCE.
2.2.MIDPOINT SPRAY NOZZLES ARE ONLY NEEDED IN VERY MUDDY CONDITIONS.
2.3.POLYACRYLAMIDE (PAM) ADDED TO WHEEL WASHWATER AT A RATE OF 0.25-0.5 POUNDS PER 1,000 GALLONS OF WATER INCREASES EFFECTIVENESS AND REDUCES
CLEANUP TIME. IF PAM IS ALREADY BEING USED FOR DUST OR EROSION CONTROL AND IS BEING APPLIED BY A WATER TRUCK, THE SAME TRUCK MAY BE USED TO
CHANGE THE WASHWATER.
3.MAINTENANCE STANDARDS
3.1.THE WHEEL WASH SHOULD START OUT EACH DAY WITH CLEAN, FRESH WATER.
3.2.THE WASHWATER SHOULD BE CHANGED A MINIMUM OF ONCE PER DAY. ON LARGE EARTHWORK JOBS WHERE MORE THAN 10 TO 20 TRUCKS PER HOUR ARE EXPECTED,
THE WASHWATER WILL NEED TO BE CHANGED MORE OFTEN.
3.3.WHEEL WASH OR TIRE BATH WASHWATER SHALL BE DISCHARGED TO A SEPARATE ONSITE TREATMENT SYSTEM, SUCH AS A CLOSED-LOOP RECIRCULATION SYSTEM OR
LAND APPLICATION, OR TO THE SANITARY SEWER SYSTEM WITH PROPER APPROVAL AND/OR PERMITS FROM KING COUNTY AND THE CITY OF RENTON.
WHEEL WASH AND PAVED
CONSTRUCTION ENTRANCE
STD. PLAN - 215.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
EXIST
I
N
G
R
O
A
D
1.CONDITION OF USE
1.1.CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER
PAVED AREAS WITHIN 1,000 FEET OF THE SITE.
1.2.FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAIN SUBDIVISION
ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTH/WIDTH TO PROVIDE VEHICLE ACCESS/PARKING, BASED ON LOT SIZE/CONFIGURATION.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.A SEPARATION GEOTEXTILE SHALL BE PLACED UNDER THE SPALLS TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE GEOTEXTILE
SHALL MEET THE FOLLOWING STANDARDS:
2.2.DO NOT USE CRUSHED CONCRETE, CEMENT, OR CALCIUM CHLORIDE FOR CONSTRUCTION ENTRANCE STABILIZATION BECAUSE THESE PRODUCTS RAISE pH
LEVELS IN STORMWATER AND CONCRETE DISCHARGE TO SURFACE WATERS OF THE STATE IS PROHIBITED.
2.3.HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE USED FOR PERMANENT ROADS.
HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS
IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT.
2.4.FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE.
2.5.WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE
EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE.
3.MAINTENANCE STANDARDS
3.1.QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS.
3.2.IF THE ENTRANCE IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF
SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF A WHEEL
WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASH WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND.
3.3.ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE
REMOVED OR STABILIZED ON SITE. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND
THERE IS A THREAT TO PUBLIC SAFETY. IF IT IS NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONSTRUCTED. THE SEDIMENT WOULD THEN BE
WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. WASH WATER MUST BE PUMPED BACK ONTO THE SITE AND
CANNOT DISCHARGE TO SYSTEMS TRIBUTARY TO SURFACE WATERS.
3.4.ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY.
3.5.IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL
TRAFFIC.
NOTES:
CONSTRUCTION ENTRANCE NOTES:
1.DRIVEWAYS SHALL BE PAVED TO
THE EDGE OF THE RIGHT-OF-WAY
PRIOR TO INSTALLATION OF THE
CONSTRUCTION ENTRANCE TO
AVOID DAMAGING OF THE
ROADWAY.
2.IT IS RECOMMENDED THAT THE
ENTRANCE BE CROWNED SO THAT
RUNOFF DRAINS OFF THE PAD
INSTALL DRIVEWAY CULVERT
IF THERE IS A ROADSIDE
DITCH PRESENT, AS PER CITY
ROAD STANDARDS
GEOTEXTILE
4"-8" QUARRY SPALLS
12" MIN. THICKNESS
15' MIN.
PROVIDE FULL WIDTH OF
INGRESS/EGRESS AREA
100' MIN.
GRAB TENSILE STRENGTH (ASTM D4632)200 LBS. MIN.
GRAB TENSILE ELONGATION (ASTM D4632)30% MAX. (WOVEN)
CBR PUNCTURE STRENGTH (ASTM D6241)495 LBS. MIN.
AOS (ASTM D4751)20-45 (U.S. STANDARD SIEVE SIZE)
R = 25' MIN.
STABILIZED CONSTRUCTION ENTRANCE
STD. PLAN - 215.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
2H:1V
MAX
.3H:1V MAX.3H:1V
MAX
.
1.CONDITION OF USE
1.1.A SEDIMENT POND SHALL BE USED WHERE THE CONTRIBUTING DRAINAGE AREA IS 3 ACRES OR MORE.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.THE POND SHALL BE DIVIDED INTO TWO ROUGHLY EQUAL VOLUME CELLS BY A PERMEABLE DIVIDER THAT WILL REDUCE TURBULENCE WHILE ALLOWING
MOVEMENT OF WATER BETWEEN CELLS. THE DIVIDER SHALL BE AT LEAST ONE HALF OF THE HEIGHT OF THE RISER. WIRE - BACKED, 2-TO 3 FOOT HIGH, EXTRA
STRENGTH FILTER FABRIC SUPPORTED BY TREATED 4"X4"s MAY BE USED AS A DIVIDER. ALTERNATIVELY, STAKED STRAW BALES WRAPPED WITH FILTER
FABRIC MAY BE USED.
2.2.IF THE POND IS MORE THAN 6 FEET DEEP, A DIFFERENT MECHANISM MUST BE PROPOSED.
2.3.TO AID IN DETERMINING SEDIMENT DEPTH, ONE-FOOT INTERVALS SHALL BE PROMINENTLY MARKED ON THE RISER.
3.MAINTENANCE STANDARDS
3.1.SEDIMENT SHALL BE REMOVED FROM THE POND WHEN IT REACHES 1 FOOT IN DEPTH.
3.2.ANY DAMAGES TO THE POND EMBANKMENTS OR SLOPES SHALL BE REPAIRED.
NOTES:
POND LENGTH (3 TO 6 TIMES
THE MAX. POND WIDTH)
SILT FENCE OR
EQUIVALENT DIVIDER
RISER
PIPE
INFLOW
KEY DIVIDER INTO SLOPE TO
PREVENT FLOW AROUND SIDES
EMERGENCY
OVERFLOW
SPILLWAY
DISCHARGE TO STABILIZED
CONVEYANCE, OUTLET, OR
LEVEL SPREADER
6' MIN.12" MIN.
12"
CREST OF
EMERGENCY
SPILLWAY
RISER PIPE (PRINCIPAL SPILLWAY),
OPEN AT TOP WITH DEBRIS BARRIER,
SEE STD. PLAN 234.20
DEWATERING DEVICE
(SEE RISER DETAIL,
STD. PLAN 216.10)
DEWATERING ORIFICE
CONCRETE BASE
DISCHARGE TO STABILIZED
CONVEYANCE, OUTLET, OR
LEVEL SPREADER
EMBANKMENT COMPACTED 95%.
PERVIOUS MATERIALS SUCH AS GRAVEL
OR CLEAN SAND SHALL NOT BE USED
WIRE-BACKED SILT FENCE, STAKED
HAY BALES WRAPPED WITH FILTER
FABRIC, OR EQUIVALENT DIVIDER
3.5'
MIN.
SEDIMENT POND PLAN VIEW AND
CROSS SECTIONS
STD. PLAN - 216.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
POLYETHYLENE CAP
PROVIDE ADEQUATE STRAPPING
CORRUGATED
METAL RISER
TACK WELD
WATERTIGHT COUPLING
PERFORATED POLYETHYLENE DRAINAGE
TUBING, DIAMETER 2" MIN. LARGER THAN
DEWATERING ORIFICE. TUBING SHALL
COMPLY WITH ASTM F667 AND AASHTO M294
CONCRETE BASE
(ALTERNATIVELY, METAL STAKES AND WIRE
MAY BE USED TO PREVENT FLOTATION)
DEWATERING ORIFICE, SCH 40 STEEL STUB, MIN.
DIAMETER AS PER CALCULATIONS IN SECTION D.2.1.5.2 OF
THE CITY OF RENTON SURFACE WATER DESIGN MANUAL
3.5' MIN.
6" MIN.
18" MIN.
2 x RISER DIA. MIN.
1.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
NOTES:
RISER PIPE (PRINCIPAL SPILLWAY)
OPEN AT TOP WITH DEBRIS BARRIER,
SEE STD. PLAN 234.20
SEDIMENT POND RISER DETAIL
STD. PLAN - 216.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
NOTES:
SECTION VIEW
ISOMETRIC VIEW
DRAINAGE GRATE TRIM
GRATE FRAME
FILTERED
WATER
SEDIMENT AND DEBRIS
OVERFLOW BYPASS
BELOW INLET GRATE DEVICE
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN)RETRIEVAL SYSTEM (TYP.)
OVERFLOW BYPASS (TYP.)
BELOW INLET GRATE DEVICE
1.PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR
CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP.
2.INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3.THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4.SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE.
5.THE BIGD SHALL HAVE A BUILT-IN HIGH-FLOW RELIEF SYSTEM (OVERFLOW BYPASS).
6.THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL.
7.PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15).
8.ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE
STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
5" MAX.
CATCH BASIN INSERT
STD. PLAN - 216.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLAN VIEW
NOTES:
1.PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF
A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE
CONVEYED TO A SEDIMENT POND OR TRAP.
2.INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3.THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4.USE BLOCK AND GRAVEL TYPE SEDIMENT BARRIER WHEN CURB INLET IS LOCATED IN GENTLY SLOPING
SEGMENT, WHERE WATER CAN POND AND ALLOW SEDIMENT TO SEPARATE FROM RUNOFF.
5.BARRIER SHALL ALLOW FOR OVERFLOW FROM SEVERE STORM EVENT.
6.INSPECT BARRIERS AND REMOVE SEDIMENT AFTER EACH STORM EVENT. SEDIMENT AND GRAVEL MUST
BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY.
7.BLOCK AND GRAVEL CURB INLET PROTECTION MAY ONLY BE USED IN LANES NOT OPEN TO TRAFFIC.
SECTION A
CATCH BASIN
OVERFLOW
WATER
CATCH BASIN COVERBACK OF SIDEWALK
2"x4" WOOD STUD CURB INLET
CONCRETE BLOCKSWIRE SCREEN OR FILTER FABRIC
3/4" DRAIN GRAVEL
WIRE SCREEN OR FILTER FABRIC
3/4" DRAIN GRAVEL
POND HEIGHT
2"x4" WOOD STUD
CATCH BASIN COVER
CURB INLETA
BLOCK AND GRAVEL CURB INLET
PROTECTION
STD. PLAN - 216.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
RUNOFF
RUNOFF
SPILLWAY
NOTES:
1.PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A
DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE
CONVEYED TO A SEDIMENT POND OR TRAP.
2.INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3.THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4.PLACE CURB TYPE SEDIMENT BARRIERS ON GENTLY SLOPING STREET SEGMENTS, WHERE WATER CAN POND
AND ALLOW SEDIMENT TO SEPARATE FROM RUNOFF.
5.SANDBAGS OF EITHER BURLAP OR WOVEN GEOTEXTILE FABRIC, SHALL BE FILLED WITH GRAVEL, LAYERED
AND PACKED TIGHTLY.
6.LEAVE A ONE SANDBAG GAP IN THE TOP ROW TO PROVIDE A SPILLWAY FOR OVERFLOW.
7.INSPECT BARRIERS AND REMOVE SEDIMENT AFTER EACH STORM EVENT. SEDIMENT AND GRAVEL MUST BE
REMOVED FROM THE TRAVELED WAY IMMEDIATELY.
8.CURB AND GUTTER BARRIER PROTECTION MAY ONLY BE USED IN LANES NOT OPEN TO TRAFFIC.
BACK OF SIDEWALK
CURB INLET
CURB FACE
GUTTER
DRAIN GRATE
SANDBAGS TO OVERLAP ONTO CURB
GRAVEL FILLED SANDBAGS STACKED TIGHTLY
CURB AND GUTTER BARRIER
PROTECTION
STD. PLAN - 216.50
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.REQUIRED AT:
1.1.1.THE TOP OF ALL SLOPES IN EXCESS OF 3H:1V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2.AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELOW.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.FOR SLOPES STEEPER THAN 2H:1V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED
INTERCEPTOR DIKES MAY BE USED. THE DESIRED MEASURE MUST BE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY
RUNOFF TO A SEDIMENT POND OR TRAP.
2.2.CONSTRUCTION TRAFFIC OVER TEMPORARY DIKES SHALL BE MINIMIZED.
3.MAINTENANCE STANDARDS
3.1.DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY.
3.2.IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE DIKES SHALL BE INCREASED.
NOTES:
2' MIN.18" MIN.
DIKE SPACING DEPENDS ON SLOPE GRADIENT
DIKE MATERIAL COMPACTED TO 90% MODIFIED PROCTOR
2 MAX.
1
2 MAX.
1
AVERAGE SLOPE SLOPE PERCENT FLOW PATH LENGTH
20H:1V (OR LESS)3-5%300 FEET
(10 TO 20)H:1V 5-10%200 FEET
(4 TO 10)H:1V 10-25%100 FEET
(2 TO 4)H:1V 25-50%50 FEET
INTERCEPTOR DIKE
STD. PLAN - 217.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.REQUIRED AT:
1.1.1.THE TOP OF ALL SLOPES IN EXCESS OF 3H:1V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2.AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELOW.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.FOR SLOPES STEEPER THAN 2H:1V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED
INTERCEPTOR SWALES MAY BE USED. THE DESIRED MEASURE MUST BE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY
RUNOFF TO A SEDIMENT POND OR TRAP.
2.2.CONSTRUCTION TRAFFIC OVER TEMPORARY SWALES SHALL BE MINIMIZED.
3.MAINTENANCE STANDARDS
3.1.DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY.
3.2.IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE SWALES SHALL BE INCREASED.
NOTES:
2
MAX.
1
AVERAGE SLOPE SLOPE PERCENT FLOW PATH LENGTH
20H:1V (OR LESS)3-5%300 FEET
(10 TO 20)H:1V 5-10%200 FEET
(4 TO 10)H:1V 10-25%100 FEET
(2 TO 4)H:1V 25-50%50 FEET
2
MAX.
1
2' MIN.
12" MIN.
SWALE SPACING DEPENDS ON SLOPE GRADIENT
LEVEL BOTTOM
INTERCEPTOR SWALE
STD. PLAN - 217.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.CONDITIONS OF USE
1.1.PIPE SLOPE DRAINS SHOULD BE USED WHEN A TEMPORARY OR PERMANENT STORMWATER CONVEYANCE IS NEEDED TO MOVE
WATER DOWN A STEEP SLOPE TO AVOID EROSION.
1.2.PIPE SLOPE DRAINS MAY BE CONNECTED TO NEW CATCH BASINS AND USED TEMPORARILY UNTIL ALL PERMANENT PIPING IS
INSTALLED.
1.3.PIPE SLOPE DRAINS MAY BE USED ON ANY SLOPE WITH A GRADIENT OF 2H:1V OR GREATER AND WITH AT LEAST 10 FEET OF
VERTICAL RELIEF.
1.4.PIPE SLOPE DRAINS MAY BE USED TO DRAIN WATER COLLECTED FROM AQUIFERS EXPOSED ON CUT SLOPES AND CONVEY IT TO
THE BASE OF THE SLOPE.
1.5.PIPE SLOPE DRAINS MAY BE USED TO COLLECT CLEAN RUNOFF FROM PLASTIC SHEET COVER AND DIRECT AWAY FROM ANY
EXPOSED SOILS.
1.6.PIPE SLOPE DRAINS MAY BE INSTALLED IN CONJUNCTION WITH SILT FENCE TO DRAIN COLLECTED WATER TO A CONTROLLED AREA.
1.7.PIPE SLOPE DRAINS MAY BE USED TO TEMPORARILY DIVERT SMALL SEASONAL STREAMS AWAY FROM CONSTRUCTION.
1.8.PIPE SLOPE DRAINS MAY BE CONNECTED TO EXISTING DOWNSPOUTS AND ROOF DRAINS USED TO DIVERT WATER AWAY FROM
WORK AREAS DURING BUILDING RENOVATION, DEMOLITION, AND CONSTRUCTION PROJECTS.
1.9.PIPE SLOPE DRAINS MAY BE ROCK-LINED DITCHES OR OTHER PERMANENT, NON-EROSIVE CONVEYANCES USED TO CONVEY
RUNOFF DOWN STEEP SLOPES THAT ARE NOT STEEP SLOPE HAZARDS.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.THE MAXIMUM DRAINAGE AREA ALLOWED FOR ANY SIZED PIPE IS 10 ACRES. FOR LARGER AREAS MORE THAN ONE PIPE SHALL BE
USED OR A ROCK LINED CHANNEL SHALL BE INSTALLED.
2.2.THE SOIL AROUND AND UNDER THE PIPE AND ENTRANCE SECTION SHALL BE THOROUGHLY COMPACTED.
2.3.THE FLARED INLET SECTION SHALL BE SECURELY CONNECTED TO THE SLOPE DRAIN AND BE FUSED OR WELDED, OR HAVE
FLANGE-BOLTED MECHANICAL JOINTS TO ENSURE A WATERTIGHT SEAL.
2.4.SLOPE DRAINS SHALL BE CONTINUOUSLY FUSED, WELDED OR FLANGE-BOLTED MECHANICAL JOINT PIPE SYSTEMS WITH PROPER
ANCHORING TO THE SOIL.
2.5.WHERE THE SLOPE DRAINS CROSS STEEP SLOPE HAZARD AREAS OR THEIR ASSOCIATED BUFFERS, THE INSTALLATION SHALL BE
ON THE GROUND SURFACE. ANY AREA DISTURBED DURING INSTALLATION AND MAINTENANCE MUST BE IMMEDIATELY STABILIZED.
2.6.RE-ESTABLISH COVER IMMEDIATELY ON AREAS DISTURBED BY THE INSTALLATION.
3.MAINTENANCE STANDARDS
3.1.THE INLET SHALL NOT BE UNDERCUT OR BYPASSED BY WATER. IF THERE ARE PROBLEMS, THE HEAD WALL SHALL BE
APPROPRIATELY REINFORCED.
3.2.NO EROSION SHALL OCCUR AT THE OUTLET POINT. IF EROSION OCCURS ADDITIONAL PROTECTION SHALL BE ADDED.
NOTES:
DIKE MATERIAL COMPACTED
90% MODIFIED PROCTOR
CORRUGATED METAL, CPE,
OR EQUIVALENT PIPE
DISCHARGE TO A STABILIZED
WATERCOURSE, SEDIMENT
RETENTION FACILITY, OR
STABILIZED OUTLET
12" MIN.
STANDARD FLARED
END SECTION
INLET AND ALL SECTIONS MUST BE
SECURELY FASTENED TOGETHER WITH
GASKETED WATERTIGHT FITTINGS
INTERCEPTOR DIKE
INTERCEPTOR DIKE
PROVIDE RIPRAP PAD OR
EQUIVALENT ENERGY DISSIPATION
PIPE SLOPE DRAIN
STD. PLAN - 217.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
A B
1.CONDITIONS OF USE
1.1.WHERE THERE IS CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM SEDIMENT PONDS OR TRAPS.
1.2.TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON-EROSIVE DISCHARGE POINT.
2.MAINTENANCE STANDARDS
2.1.ANY SEDIMENT DEPOSITION OF MORE THAN 6 INCHES SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY.
2.2.THE CHECK DAMS SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING AND EROSION HAS OCCURRED,
AFFECTED AREAS SHALL BE PROTECTED BY RIPRAP OR AN EROSION CONTROL BLANKET OR NET.
NOTES:
ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH
6" MIN.
24" MIN.
L = THE DISTANCE SUCH THAT POINTS
A AND B ARE OF EQUAL ELEVATION
L
2"-4" ROCK
2
1 2
1
SECTION A
SECTION B
CHECK DAM (TYP.)
PLANAB
18" MIN.
FLOW
DITCH
BOTTOM OF DITCH
18" MIN.
DITCH CHECK DAMS
STD. PLAN - 217.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SPREADER MUST BE LEVEL
1.CONDITIONS OF USE
1.1.MAY BE USED WHERE RUNOFF FROM UNDISTURBED AREAS OR SEDIMENT RETENTION FACILITIES IS DISCHARGED.
1.2.APPLIES ONLY WHERE THE SPREADER CAN BE CONSTRUCTED ON UNDISTURBED SOIL AND THE AREA BELOW THE LEVEL SPREADER IS VEGETATED AND LOW
GRADIENT.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.THE TOTAL SPREADER LENGTH SHALL BE AT LEAST THE SQUARE ROOT OF THE CATCHMENT AREA.
2.2.MAXIMUM LENGTH FOR AN INDIVIDUAL SPREADER IS 50 FEET.
2.3.MULTIPLE SPREADERS SHALL NOT BE PLACED UPHILL OR DOWNHILL FROM ONE ANOTHER.
2.4.THE AREA BELLOW THE SPREADER FOR A HORIZONTAL DISTANCE OF 100 FEET SHALL NOT EXCEED 20 PERCENT AND SHALL BE COMPLETELY VEGETATED WITH NO
AREAS OF INSTABILITY OR EROSION. THE TOPOGRAPHY FOR A HORIZONTAL DISTANCE OF 50 FEET BELOW THE SPREADER SHALL BE UNIFORM SO THAT RUNOFF IS
NOT FUNNELED INTO A SWALE OR CHANNEL IMMEDIATELY AFTER ITS RELEASE.
2.5.THE AREA BELOW THE LEVEL SPREADER SHALL BE SEEDED AND MULCHED.
3.MAINTENANCE STANDARDS
3.1.ANY DAMAGE TO THE SPREADER SHALL BE IMMEDIATELY REPAIRED. ENSURE FLOWS DO NOT BYPASS THE SPREADER AT THE ENDS OF THE SPREADER.
3.2.THE DOWNSLOPE AREA SHALL BE CHECKED FOR SIGNS OF EROSION AND VERIFY THAT THE SPREADER IS NOT FUNCTIONING AS A POINT DISCHARGE.
3.3.ANY ERODED AREAS SHALL BE IMMEDIATELY STABILIZED, AND THE CAUSE DETERMINED AND ELIMINATED IF POSSIBLE.
NOTES:
CEDAR OR PRESSURE TREATED 2"x10"
DENSELY VEGETATED FOR A MIN. OF 100'
AND A SLOPE OF LESS THAN 5H:1V
2
MAX.
1
12" MIN.
3' MIN.
TREATED 2"X10" MAY BE ABUTTED
END TO END FOR MAX. SPREADER
LENGTH OF 50'
6" MIN.1" MIN.
6" MIN.
18" MIN. REBAR SUPPORTS (TYP.)
8' MIN.
LEVEL SPREADER DETAIL AND CROSS
SECTION
STD. PLAN - 217.50
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
460'
470'
48
0
'
4
9
0
'
50
0
'
ELEV.
502'
ELEV.
495'
ELEV.
440'
ELEV.
460'
1
2
"
P
I
P
E
SWALELEGEND:
PROPERTY LINE
STREET CENTERLINE
CONTOUR
WETLAND
STEEP SLOPE (40%+)
OFFSITE DRAINAGE
S.A.S.B. = SENSITIVE AREA SETBACK
SF SF
SF
SF
NE Q ST.
NE P S
T
.
TOP OF SLOPE
TOE OF SLOPE
SILT FENCE
APPROX. AREA TO BE CLEARED. ALL
EXPOSED SOILS WILL BE MULCHED
WHEN NOT BEING WORKED. MARK
CLEARING LIMIT WITH S.A.S.B. FENCE
STABILIZED
CONSTRUCTION
ENTRANCE
FLAG WETLAND BUFFER EDGE WITH S.A.S.B. TAPE
APPLICANT: Malene McResident
600 NE Z Street
Sometown, WA 98111
(206) 555-1212
PROJECT PARCEL NO. - 322708
PROJECT ADDRESS - 7519 NE Q Street
(proposed) Sometown, WA 98111
SECTION/TOWNSHIP/RANGE: 32-27-08
TOTAL SITE ACREAGE: 1.69
TOTAL IMPERVIOUS AREA: 6950 SQ. FT.
MAINTAIN ROCKED
TRAFFIC AREAS
AS NECESSARY.
CSWPP/ESC CONTACT:
Malene McResident (206) 555-1212
DISTURBED ACREAGE: APPROX. 0.9
APPROX. BUILDING FOOTPRINT
CONCRETE
WASHOUT AREA
ROCKED PARKING/MATERIALS
STORAGE; CONDUCT
MAINTENANCE OFFSITE OR
PROVIDE SPILL PROTECTION
SAMPLE SMALL SITE EROSION
CONTROL PLAN
STD. PLAN - 218.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
N
Scale in Feet
0 30 60 120
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
RIGID PIPE NOTES:
1.PIPE COMPACTION LIMITS SHOWN ON THIS PLAN ARE FOR PIPE
CONSTRUCTION IN AN EMBANKMENT. FOR PIPE CONSTRUCTION IN
A TRENCH, THE HORIZONTAL LIMITS OF THE PIPE COMPACTION
ZONE SHALL BE THE WALLS OF THE TRENCH.
2.O.D. IS EQUAL TO THE OUTSIDE DIAMETER OF A PIPE OR THE
OUTSIDE SPAN OF PIPE-ARCH.
3.SEE STANDARD WSDOT/APWA SPECIFICATIONS SECTION 2-09.4 FOR
TRENCH WIDTH.
4.PIPE ZONE BEDDING AND BACKFILL MATERIAL SHALL BE PLACED IN
6" LOOSE LAYERS AND COMPACTED TO 95% MAXIMUM DENSITY.
5.EXCAVATE UNSTABLE MATERIAL DOWN TO FIRM SOIL AND REPLACE
WITH FOUNDATION MATERIAL CLASS A OR B PER STANDARD
WSDOT/APWA SPECIFICATIONS SECTION 9-03.17.
GRAVEL BACKFILL FOR PIPE ZONE BEDDING (WSDOT 9-03.12(3))
OR MAINTENANCE ROCK (WSDOT 9-03.9(4))
CIRCULAR PIPE
FOUNDATION MATERIAL,
IF REQUIRED, SEE NOTE 5
SPAN 6"
PIPE - ARCH
6"
PIPE TYPE MINIMUM
COVER (FT)PUBLIC?PRIVATE?ALLOWED IN ZONE 1
OF THE APA?
CORRUGATED
STEEL PIPE 2.0 YES YES YES
SPIRAL RIB STEEL
PIPE 2.0 YES YES YES
PLAIN CONCRETE
PIPE (PCP)2.0 NO YES NO
REINFORCED
CONCRETE PIPE
(RCP)
1.0 YES YES NO
DUCTILE IRON PIPE 1.0 YES YES YES
FOUNDATION
LEVEL
RISE
TRENCH WIDTH,
SEE NOTE 3
CIRCULAR PIPE
DIAMETER MINIMUM DISTANCE
BETWEEN BARRELS
12" TO 24"12"
30" TO 96"DIAMETER / 3
102" TO 180"48"
PIPE-ARCH
SPAN MINIMUM DISTANCE
BETWEEN BARRELS
18" TO 36"12"
43" TO 142"SPAN / 3
148" TO 199"48"
TRENCH WIDTH,
SEE NOTE 3
6"
O.D.
6"
FOUNDATION
LEVEL
PIPE ZONE BEDDING AND
BACKFILL, SEE NOTE 4
FOUNDATION MATERIAL,
IF REQUIRED, SEE NOTE 5
PIPE ZONE BEDDING AND
BACKFILL, SEE NOTE 4
PIPE ZONE BEDDING AND
COMPACTION - RIGID PIPE
STD. PLAN - 220.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
FLEXIBLE PIPE NOTES:
1.PROVIDE UNIFORM SUPPORT UNDER BARRELS.
2.HAND TAMP UNDER HAUNCHES.
3.DIRECTLY OVER PIPE, HAND TAMP ONLY.
4.SEE STANDARD WSDOT/APWA SPECIFICATIONS SECTION 2-09.4 FOR
TRENCH WIDTH.
5.PIPE ZONE BEDDING AND BACKFILL MATERIAL SHALL BE PLACED IN 6"
LOOSE LAYERS AND COMPACTED TO 95% MAXIMUM DENSITY.
6.EXCAVATE UNSTABLE MATERIAL DOWN TO FIRM SOIL AND REPLACE WITH
FOUNDATION MATERIAL CLASS A OR B PER STANDARD WSDOT/APWA
SPECIFICATIONS SECTION 9-03.17.
SEE NOTE 4,
LIMIT OF PIPE ZONE
6"
O.D.
6"
FOUNDATION
LEVEL
PIPE ZONE BEDDING AND
BACKFILL, SEE NOTE 5
FLEXIBLE PIPE
PIPE TYPE MINIMUM
COVER (FT)PUBLIC?PRIVATE?ALLOWED IN ZONE 1
OF THE APA?
LINE CORRUGATED POLYETHYLENE PIPE (LCPE)2.0 YES YES YES
CORRUGATED POLYETHYLENE PIPE (CPE) - TRIPLE WALL 2.0 YES YES YES
POLYVINYL CHLORIDE PIPE (PVC)3.0 YES YES YES
SOLID WALL HIGH DENSITY POLYETHYLENE PIPE (HDPE)2.0 YES YES YES
POLYPROPYLENE PIPE (PP) - DUAL WALL 2.0 YES YES YES
DIAMETER MINIMUM DISTANCE
BETWEEN BARRELS
12" TO 24"12"
30" TO 96"DIAMETER / 3
102" TO 180"48"
GRAVEL BACKFILL FOR PIPE ZONE BEDDING (WSDOT 9-03.12(3))
OR MAINTENANCE ROCK (WSDOT 9-03.9(4))
FOUNDATION MATERIAL,
IF REQUIRED, SEE NOTE 6
PIPE ZONE BEDDING AND
COMPACTION - FLEXIBLE PIPE
STD. PLAN - 220.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
12" MIN.
6" MIN. , SEE NOTE 4
EXISTING PAVEMENT SURFACE
SURFACE RESTORATION AS
SPECIFIED IN CONTRACT DOCUMENTS
"CRUSHED SURFACING TOP COURSE" PER
WSDOT STD. SPEC 9-03.9(3), "BANK RUN
GRAVEL FOR TRENCH BACKFILL" PER
WSDOT STD. SPEC 9-03.19, OR "GRAVEL
BORROW" PER WSDOT STD. SPEC 9-03.14(1),
COMPACTED TO 95% OF MAXIMUM DENSITY
BENCH AS NEEDED FOR
SHORING SYSTEM WHEN
DEPTH IS 4' OR GREATER
PIPE ZONE BEDDING AND BACKFILL
PER STD. PLANS 220.00 AND 220.10
PIPE
NEAT LINE TRENCH
UNPAVED AREAS PAVED AREAS
SEE NOTE 1
NOTES:
1.SEE WSDOT/APWA STANDARD SPECIFICATIONS SECTION 2-09.4 FOR
MEASUREMENT OF TRENCH WIDTH.
2.EXCAVATIONS OVER 4' DEEP SHALL COMPLY WITH THE SAFETY STANDARD
DESCRIBED IN CHAPTER 295-155 PART N OF THE WAC.
3.MAXIMUM BACKFILL DEPTH ABOVE PIPE SHALL NOT BE EXCEEDED, AS
DETERMINED BY PIPE MANUFACTURER.
4.IN PAVED AREAS, IF PIPE HAS LESS THAN 3' OF COVER, USE "CRUSHED
SURFACING TOP COURSE" FOR THE ENTIRE BACKFILL DEPTH ABOVE PIPE ZONE.
5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
SEE STANDARD PLANS 110, 110.1, 110.2, AND 111 FOR PAVEMENT
RESTORATION REQUIREMENTS
"CRUSHED SURFACING TOP COURSE" PER
WSDOT STD. SPEC 9-03.9(3), COMPACTED
TO 95% OF MAXIMUM DENSITY
TYPICAL TRENCH AND BACKFILL
STD. PLAN - 220.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
METAL PIPE
4H:1V
O
R
S
T
E
E
P
E
R
4H:1V
O
R
S
T
E
E
P
E
R
4H:1V
O
R
S
T
E
E
P
E
R
CONCRETE PIPE
THERMOPLASTIC PIPE
1.THE CULVERT ENDS SHALL BE BEVELED TO MATCH THE EMBANKMENT OR DITCH SLOPE AND SHALL NOT BE
BEVELED FLATTER THAN 4H:1V. WHEN SLOPES ARE BETWEEN 4H:1V AND 6H:1V, SHAPE THE SLOPE IN THE
VICINTIY OF THE CULVERT END TO ENSURE THAT NO PART OF THE CULVERT PROTRUDES MORE THAN 4"
ABOVE THE GROUND LINE.
2.FIELD CUTTING OF CULVERT ENDS IS PERMITTED WHEN APPROVED BY THE ENGINEER. ALL FIELD-CUT METAL
CULVERT PIPE SHALL BE TREATED WITH TREATMENT AS SHOWN IN WSDOT STD. SPECIFICATION 9-05.4(3).
DRAWN BY: MARK SUJKA
4" MAX.
END SECTION LENGTH SHALL BE AT LEAST SIX TIMES THE DIAMETER OF THE PIPE
(SEE WSDOT STD. SPEC. 7-02.3(1))
4" MAX.
4" MAX.
END SECTION LENGTH SHALL BE AT LEAST SIX TIMES THE DIAMETER OF THE PIPE
(SEE WSDOT STD. SPEC. 7-02.3(1))
END SECTION LENGTH SHALL BE AT LEAST SIX TIMES THE DIAMETER OF THE PIPE
(SEE WSDOT STD. SPEC. 7-02.3(1))
BEVELED END SECTIONS
STD. PLAN - 221.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
FOR 12" THRU 24" PIPEAND 17" x 13" THRU28" x 20" PIPE ARCH WITHANNULAR END CORRUGATIONSTYPE 1TYPE 3DESIGN ACONNECTION TO METAL PIPEFOR 42" THRU 84" PIPE AND49" x 33" THRU 83" x 57" PIPE ARCHWITH ANNULAR END CORRUGATIONS, AND ALLHELICAL END CORRUGATED PIPE AND PIPE ARCHDESIGN BDESIGN CPIPE & PIPE ARCH - PLANSECTION APIPE ARCH - ELEVATIONPIPE - ELEVATIONCONNECTION TO CONCRETEPIPE INLET END ONLYCONNECTION TO METAL ORCONCRETE PIPE OUTLET ONLY1.THE DIAMETER OF THE END SECTION OF DESIGN B SHALL MATCH THE INSIDE DIAMETER OF THECONCRETE PIPE.2.SKIRT SECTIONS SHALL BE MADE IN ONE PIECE FOR ROUND PIPE WITH A DIAMETER OF 12" TO 24"INCLUSIVE AND FOR PIPE ARCHES WITH A RISE OF 13" TO 20" INCLUSIVE. SKIRT SECTIONS FORLARGER SIZES OF PIPES MAY BE MULTIPLE PIECES IN CONFORMANCE WITH THE TABULATEDVALUES SHOWN.3.DESIGN A END SECTIONS FOR 42" THRU 84" DIAMETER AND 49" X 33" THRU 83" X 57" ARCH WITHANNULAR CORRUGATIONS AND ALL HELICALLY CORRUGATED PIPE ARCH INCLUDE ONE FOOT OFPIPE LENGTH AS A CONNECTOR SECTION. THE CONNECTOR SECTION SHALL BE ATTACHED TO THEEND SECTION BY WELDS, RIVETS OR BOLTS AND SHALL BE THE SAME THICKNESS AS THE ENDSECTION.4.DESIGN C MAY BE USED IN LIEU OF DESIGN A FOR ALL METAL PIPE SIZES EXCEPT AS NOTED.COUPLING BANDS MAY BE ANY ACCEPTABLE TYPE FOR THE PIPE SPECIFIED.5.MULTIPLE PANEL SKIRTS SHALL HAVE 2" LAP SEAMS TIGHTLY JOINED BY 3/8" STAINLESS STEELRIVETS OR GALVANIZED BOLTS ON 6" MAX. CENTERS.6.THE REINFORCED EDGES OF THE FOLLOWING SIZE END SECTIONS SHALL BE SUPPLEMENTED WITHGALVANIZED STEEL STIFFENER ANGLES:60" THRU 72" DIAMETER PIPE ...............2" X 2" X 1/4" ANGLE78" AND 84" DIAMETER PIPE, AND 77" X 52" & 83" X 57" PIPE ARCH ........... 2 1/2" X 2 1/2" X 1/4" ANGLETHE ABOVE GALVANIZED ANGLES SHALL BE ATTACHED BY 3/8" GALVANIZED NUTS AND BOLTS.7.GALVANIZED STEEL ANGLE REINFORCEMENT WILL BE PLACED UNDER THE CENTER PANEL SEAMSON THE 72" THRU 84" DIAM. PIPE AND 77" X 52" & 83" X 57" PIPE ARCH END SECTIONS.8.AS AN ALTERNATIVE TO THE CONNECTOR LUG AND THREADED ROD USED ON 12" THRU 24"CULVERT PIPE, THE ATTACHMENT MAY BE MADE WITH A 1" WIDE STRAP, 16 GAGE GALVANIZEDSTEEL FASTENED WITH A 1/2" DIAM., 6" LONG GALVANIZED BOLT AND ONE SQUAREHEAD NUT.SLOPE1NOTES:PIPEDIA.2"8"AATOE PLATEEXTENSIONHREINFORCED EDGE,SEE NOTE 6AWAGALVANIZEDSTEEL ORALUMINUM SKIRTPIPEBDIA.ORSPANLPIPE PAYMENTTO THIS POINT2"8"AATOE PLATEEXTENSIONHSPANRISEREINFORCED EDGE,SEE NOTE 6LH8"FILL SLOPEPIPETOE PLATE EXTENSION, WHENREQUIRED; GALVANIZEDSTEEL OR ALUMINUM, SAMEGAUGE AS SKIRT, LAPPED 2",FASTENED WITH 3/8" S.S. ORAL. RIVETS OR GALVANIZEDBOLTS ON 12" MAX. CENTERSTHREADEDRODPIPEEND SECTIONCONNECTOR LUG,SEE NOTESTYPE 2FOR 30" THRU 84" PIPEAND 35" x 24" THRU83" x 57" PIPE ARCH WITHANNULAR END CORRUGATIONSPIPEEND SECTIONTHREADED RODPIPE PAYMENTTO THIS POINTPIPECONNECTORSECTIONEND SECTION12"PIPE PAYMENTTO THIS POINTCONCRETE PIPE1" MIN. LAP AFTEREXPANSIONPIVOT BOLTEXPANDER LUGSMOOTH GALVANIZED STEELOR ALUMINUM PIPEPIPE PAYMENTTO THIS POINT5"LESS THAN 30" DIA., 7"30" DIA. AND OVER, 13"END SECTIONPIPE PAYMENTTO THIS POINTPIPEPIPE COUPLING BAND, SHOPBOLTED TO FLARED END SECTIONWITH 3/8" BOLTS AT 6" ON CENTER(MAX.) OR EQUIVALENT RIVETEDOR WELDED CONNECTION. FORUSE WITH ALL SIZES OF PIPE ANDPIPE ARCH WITH ANNULAR ENDSPIPEPIPE DIA.(INCHES)THICKNESS (INCHES)DIMENSION (INCHES)SKIRTENDSECTIONSLOPE (H:V)ABHLWTSTEELALUM.TOL. 35/641"MAX.TOL. 35/641"TOL. 35/641-1/2"TOL. 35/642"TOL. 35/642"120.0640.0606662124341 PC.2 1/2 : 1150.0640.0607862630401 PC.2 1/2 : 1180.0640.06081063136461 PC.2 1/2 : 1210.0640.06091263642521 PC.2 1/2 : 1240.0640.075101364148581 PC.2 1/2 : 1300.0790.075121685160702 PC.2 1/2 : 1360.0790.105141996072942 PC.2 1/2 : 1420.1090.10516221169841062 PC.2 1/2 : 1480.1090.10518271278901122 PC.2 1/2 : 1540.109---183012841021222 PC.2 1/2 : 1600.1090.138---183312871141343 PC.1 3/4 : 1660.1090.138---183612871201423 PC.1 1/2 : 1720.1090.138---183912871261463 PC.1 1/3 : 1780.1090.138---184212871321523 PC.1 1/4 : 1840.1090.138---184512871381583 PC.1 1/6 : 1PIPE ARCHPIPE ARCHDIMENSION(INCHES)THICKNESS (INCHES)DIMENSION (INCHES)SKIRTENDSECTIONSLOPE (H:V)ABHLWTSPANRISESTEELALUM.TOL. 35/641"MAX.TOL. 35/641"TOL. 35/641-1/2"TOL. 35/642"TOL. 35/642"17130.0640.0607961930401 PC.2 1/2 : 121150.0640.06071062336461 PC.2 1/2 : 124180.0640.06081262842521 PC.2 1/2 : 128200.0640.07591463248581 PC.2 1/2 : 135240.0790.075101663960701 PC.2 1/2 : 142290.0790.105121884675852 PC.2 1/2 : 149330.1090.1051321953851032 PC.2 1/2 : 157380.1090.1380.10518261263901143 PC.2 1/2 : 164430.1090.1380.105183012701021303 PC.2 1/2 : 171470.1090.1380.135183312771141463 PC.2 1/2 : 177520.1090.138---183612771261523 PC.1 3/4 : 183570.1090.138---183912771381583 PC.1 1/2 : 1ATWAWTFLARED END SECTIONSSTD. PLAN - 221.10PUBLIC WORKSDEPARTMENTAPPROVED:DATEGregg ZimmermanPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA6388789/28/2018 | 9:45 AM PDT
GENERAL NOTES:
7" COUPLING BAND
12" OR 24" COUPLING BAND
MATERIAL TO BE ASTM A
36 1/4" PLATE GALVANIZED
AFTER FABRICATION PER
ASTM A123
all holes
3/4" diam.
slots to be
119/32 x 3/4"
SMOOTH COUPLING BAND
FOR SMOOTH PIPE
PLATE DETAIL
ANCHOR ASSEMBLY
CORRUGATED METAL PIPE
12"
3"
R1" (TYP.)R1" (TYP.)
2"
6 5/8"
4 1/8"
3/4"
7/8"
1 7/8"1 7/8"
4 1/2"4 1/2"
12"
PIPE STAKE (TYP.)
COUPLING BAND
WELD
PLATE (SEE DETAIL)
MATERIAL TO BE ASTM A36
GALVANIZED AFTER FABRICATION
PER ASTM A153
WELD
FLATTEN
TO POINT
1"
1 1/2" x 6' PIPE
STAKES EACH
SIDE OF CULVERT
1.THE SMOOTH COUPLING BAND SHALL BE USED IN
COMBINATION WITH CONCRETE PIPE.
2.CONCRETE PIPE WITHOUT BELL AND SPIGOT
SHALL NOT BE INSTALLED ON GRADES IN EXCESS
OF 20%.
3.THE FIRST ANCHOR SHALL BE INSTALLED ON THE
FIRST SECTION OF THE LOWER END OF THE PIPE
AND REMAINING ANCHORS EVENLY SPACED
THROUGHOUT THE INSTALLATION.
4.IF THE PIPE BEING INSTALLED HAS A MANHOLE OR
CATCH BASIN ON THE LOWER END OF THE PIPE,
THE FIRST PIPE ANCHOR MAY BE ELIMINATED.
5.WHEN CMP IS USED, THE ANCHORS MAY BE
ATTACHED TO THE COUPLING BANDS USED TO
JOIN THE PIPE AS LONG AS THE SPECIFIED
SPACING IS NOT EXCEEDED.
6.ALL PIPE ANCHORS SHALL BE SECURELY
INSTALLED BEFORE BACKFILLING AROUND THE
PIPE.
PIPE ANCHOR REQUIREMENTS AND MAXIMUM PIPE SLOPES
PIPE MATERIAL MINIMUM ANCHOR SPACING PIPE SLOPE ABOVE WHICH
PIPE ANCHORS REQUIRED
MAXIMUM PIPE
SLOPE ALLOWED
STEEL OR PVC1 1 ANCHOR PER 100 LF OF PIPE 20%30%3
CONCRETE, CPE, OR PP1 1 ANCHOR PER 50 LF OF PIPE 10%20%3
DUCTILE IRON2 1 ANCHOR PER PIPE SECTION 20%NONE
SOLID WALL HDPE2 1 ANCHOR PER 100 LF OF PIPE,
CROSS-SLOPE INSTALLATIONS ONLY 20%NONE
NOTES:
1 THESE MATERIALS ARE NOT ALLOWED IN LANDSLIDE HAZARD AREAS.
2 BUTT-FUSED OR FLANGED PIPE JOINTS ARE REQUIRED; ABOVE GROUND INSTALLATION IS RECOMMENDED ON
SLOPES GREATER THAN 40%.
3 A MAXIMUM SLOPE OF 200% IS ALLOWED FOR THESE PIPE MATERIALS WITH NO JOINTS (ONE SECTION), WITH
STRUCTURES AT EACH END, AND WITH PROPER GROUTING
CORRUGATED METAL PIPE COUPLING
AND GENERAL PIPE ANCHOR ASSEMBLY
STD. PLAN - 221.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
6" MIN.
2' MIN.
6" MIN.
3' MIN.
PIPE BEDDING
CONCRETE BLOCK
A
B
STRAP FOOTING
ANCHOR
6" MIN. (TYP.)
12" MIN.
6" MIN.
6" MIN.
CONCRETE FOOTING KEYED INTO
UNDISTURBED SOIL AS SHOWN
GENERAL NOTES:
1.FOR SOLID WALL HDPE PIPE LAID ON
THE SURFACE, PIPE MUST BE FREE
TO SLIDE INSIDE A 4' LONG SECTION
OF PIPE ONE SIZE DIAMETER LARGER.
1" MIN. DIA. STEEL ROD (STRAP)
CLAMPED SECURELY TO PIPE
CONCRETE FOOTING KEYED INTO
UNDISTURBED SOIL AS SHOWN
6" MIN.
12" MIN.2 x PIPE DIA.
MIN.
SECTION A
CONCRETE BLOCK
ANCHOR
SECTION B
PIPE ANCHOR REQUIREMENTS AND MAXIMUM PIPE SLOPES
PIPE MATERIAL MINIMUM ANCHOR SPACING PIPE SLOPE ABOVE WHICH
PIPE ANCHORS REQUIRED
MAXIMUM PIPE
SLOPE ALLOWED
STEEL OR PVC1 1 ANCHOR PER 100 LF OF PIPE 20%30%3
CONCRETE, CPE, OR PP1 1 ANCHOR PER 50 LF OF PIPE 10%20%3
DUCTILE IRON2 1 ANCHOR PER PIPE SECTION 20%NONE
SOLID WALL HDPE2 1 ANCHOR PER 100 LF OF PIPE,
CROSS-SLOPE INSTALLATIONS ONLY 20%NONE
NOTES:
1 THESE MATERIALS ARE NOT ALLOWED IN LANDSLIDE HAZARD AREAS.
2 BUTT-FUSED OR FLANGED PIPE JOINTS ARE REQUIRED; ABOVE GROUND INSTALLATION IS RECOMMENDED ON
SLOPES GREATER THAN 40%.
3 A MAXIMUM SLOPE OF 200% IS ALLOWED FOR THESE PIPE MATERIALS WITH NO JOINTS (ONE SECTION), WITH
STRUCTURES AT EACH END, AND WITH PROPER GROUTING
STRAP PIPE ANCHOR
STD. PLAN - 221.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
ANNULAR CORRUGATED BAND BAND ANGLE CONNECTOR DETAIL
REFORMED PIPE ENDS
W
1/2" x 6" BOLT (TYP.)
BAND LAP NOT SHOWN
FOR CLARITY (TYP.)
COUPLING BAND DIMENSIONS
(ALL DIMENSIONS ARE IN INCHES)
BAND TYPE CORRUGATION
PITCH x DEPTH PIPE DIA.MIN. W GASKET
TYPE
STEEL D
2 2/3 x 1/2 OR 3 x 1 REFORMED
TO 2 2/3 x 1/2 12 - 84 12 SLEEVE
3 x 1 REFORMED TO 2 2/3 x 1/2 90 - 144 24 SLEEVE
ALUMINUM D
2 2/3 x 1/2 12 - 72 12 SLEEVE
3 x 1 REFORMED TO 2 2/3 x 1/2
36 - 60 12 SLEEVE
66 - 108 24 SLEEVE
SEMI-CORRUGATED BAND
REFORMED PIPE ENDS
W
BAR & STRAP CONNECTOR DETAIL
BAND ANGLE CONNECTOR DETAIL
1/2" x 6" BOLT (TYP.)
COUPLING BAND DIMENSIONS
(ALL DIMENSIONS ARE IN INCHES)
BAND TYPE CORRUGATION
PITCH x DEPTH PIPE DIA.MIN. W GASKET
TYPE
STEEL F
2 2/3 x 1/2 OR
3 x 1
REFORMED TO
2 2/3 x 1/2
12 - 84 10 1/2 O-RING
ALUMINUM F 2 2/3 x 1/2 12 - 48 10 1/2 O-RING
TYPE D
TYPE F
COUPLING BANDS FOR CORRUGATED
METAL PIPES
STD. PLAN - 221.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PIPES AND STRUCTURAL PLATE PIPES - STEP MITERED PIPE
PIPES AND STRUCTURAL PLATE PIPES - FULL MITERED PIPE
STRUCTURAL PLATE PIPE ARCHES AND UNDERPASSES
NOTES:
SECTION A
ANCHOR BOLT DETAIL
1.THE VARIABLE DIMENSION INDICATED FOR THE HEIGHT OF STEP
FOR STEP MITERED PIPES SHALL CONFORM TO THE
MANUFACTURER'S RECOMMENDATIONS UNLESS SPECIFIED
DIFFERENTLY ON THE PLANS OR IN THE SPECIAL PROVISIONS.
2.REINFORCING STEEL SHALL HAVE 1 1/2" MIN. CLEAR COVER TO ALL
CONCRETE SURFACES.
3.HEADWALLS FOR CONCRETE CULVERT PIPE MAY OMIT ANCHOR
BOLT ATTACHMENT.
4.WHEN STEEL PIPE SAFETY BARS ARE USED, HEADWALL
THICKNESS SHALL BE INCREASED TO 8".
6"
2"
FILL SLOPE,
VARIABLE
24" SPLICE
6"
3"
24"
VARIES,
SEE NOTE 1
#4 BARS, EQUALLY
SPACED, 16" MAX. CENTER
TO CENTER (TYP.)
S/4
S
2"
#4 BARS, EQUALLY
SPACED, 16" MAX.
CENTER TO CENTER
2"
S/4 S/4
S+S/2
COMMERCIAL CONCRETE
ANCHOR BOLTS, EQUALLY
SPACED, 24" MAX. CENTER TO
CENTER (TYP.), SEE NOTE 3
6"
2"
FILL SLOPE,
VARIABLE
24" SPLICE
6"
3"
24"
VARIES,
SEE NOTE 1
#4 BARS, EQUALLY
SPACED, 16" MAX. CENTER
TO CENTER (TYP.)
D/4
2"
#4 BARS, EQUALLY
SPACED, 16" MAX.
CENTER TO CENTER
2"
D/4 D/4
D+D/2
COMMERCIAL CONCRETE
ANCHOR BOLTS, EQUALLY
SPACED, 24" MAX. CENTER TO
CENTER (TYP.), SEE NOTE 3
D
6"
2"
FILL SLOPE,
VARIABLE
24" SPLICE
6"
3"
24"
VARIES,
SEE NOTE 1
#4 BARS, EQUALLY
SPACED, 16" MAX. CENTER
TO CENTER (TYP.)
D/4
2"
#4 BARS, EQUALLY
SPACED, 16" MAX.
CENTER TO CENTER
2"
D/4 D/4
D+D/2
COMMERCIAL CONCRETE
ANCHOR BOLTS, EQUALLY
SPACED, 24" MAX. CENTER TO
CENTER (TYP.), SEE NOTE 3
D
2 1/2"
6"
3/4" BOLT
FILL SLOPE
ANCHOR BOLT (TYP.),
SEE DETAIL AND NOTE 3
PIPE
6"
D+D/2 OR S+S/2AAA
HEADWALLS FOR CULVERT PIPE AND
UNDERPASS
STD. PLAN - 222.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
8"
8"
D/4
NOTES:
ISOMETRIC VIEW
STEEL PLATE DETAIL
1/4
6"
24"
1.SOCKETS SHALL BE 3" EXTRA STRONG STEEL PIPE (3 1/2" O.D.). SOCKETS MUST BE
THE PROPER ANGLE AND HEIGHT SO THAT SAFETY BARS ARE PARALLEL WITH
HEADWALL AND SIDE SLOPE, AND ARE EASILY REMOVABLE.
2.SAFETY BARS SHALL BE 4" EXTRA STRONG STEEL PIPE (4 1/2" O.D.), OR 4 1/2" O.D.
(0.250" WALL THICKNESS) STEEL TUBING. LENGTH (20' MAXIMUM) SHALL BE THE
MINIMUM REQUIRED TO ACHIEVE RESIN BONDED ANCHOR PLACEMENT IN FULL
DEPTH CONCRETE. WHEN MULTIPLE BARS ARE REQUIRED (SEE TABLE) PLACE BARS
AT EQUAL SPACING (30" MAX.).
3.BEVEL CULVERT PIPE TO MATCH SIDE SLOPE.
4.RESIN BONDED ANCHORS SHALL BE 7" IN LENGTH (5" EMBEDMENT).
5.CENTERLINE OF HEADWALL SHALL BE NORMAL TO ROADWAY CENTERLINE.
TOP VIEW CULVERT IS
PERPENDICULAR TO ROADWAY
STEEL PLATE,
SEE DETAIL
HEADWALL,
SEE NOTE 5
FIELD CUT CULVERT TO MATCH
BLOCKOUT IN HEADWALL
NOTCH BOTTOM OF CULVERT PIPE
TO ALLOW ANCHOR/SOCKET
PLACEMENT (TYP.)
6"
D/4
D/4
D
TOP VIEW CULVERT IS
SKEWED TO ROADWAY
2" (TYP.)
2" (TYP.)
4" (TYP.)
3"
18"
3"
1"x4" SLOT WITH 2"
HOLE AT BOTTOM (TYP.)
8"x24"x5/8" STEEL PLATE
3/4" RESIN BONDED
ANCHOR (TYP), SEE NOTE 4
SAFETY BAR
9"9"
4.5" DEEP
KNOCKOUT
PLACE RESIN BONDED ANCHORS IN FULL
DEPTH CONCRETE (TYP.), SEE NOTE 4
SLOPE TO MATCH SIDE SLOPE
HEADWALL, COMMERCIAL CONCRETE
CULVERT PIPE OR PIPE ARCH, SEE NOTE 3
SAFETY BAR, SEE NOTE 2
CUT AND WELD
SOCKET, SEE NOTE 1.
SOCKET SHALL EXTEND
INTO SAFETY BAR 4"
3/4" DIA.x16" THREADED ROD CENTERED
THROUGH PIPE, SECURED WITH NUTS; OR
3/4"x6" ANCHOR STUDS WELDED TO PIPE.
SPACING SHALL BE 8" FROM TOP AND 8"
FROM BOTTOM OF CONCRETE (TYP.)
STEEL PLATE, SEE DETAIL
HEADWALL,
SEE NOTE 5
6"
D
D/4
4" MIN.
CULVERT DIA.NUMBER OF BARS
REQUIRED
UP TO 36"NONE
42" - 60"1
66" - 90"2
96" - 120"3
SECTION A
ISOMETRIC CUTAWAY
A
TYPE 1 SAFETY BARS FOR STEPPED
CULVERT PIPE OR PIPE ARCH
STD. PLAN - 222.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1/4 3
NOTES:
SIDE VIEW
FRONT VIEW
ISOMETRIC VIEW
SECTION C
SEE NOTE 3
1
SECTION A
1.D = INSIDE DIAMETER OF CULVERT PIPE, OR PIPE ARCH SPAN WIDTH, 36" MAXIMUM.
2.THE DISTANCE BETWEEN THE SAFETY BARS, AND BETWEEN THE TOP BAR AND THE
CULVERT CROWN, SHALL BE EQUAL SPACES OF NO MORE THAN 24". THE DISTANCE MAY
VARY 35/64" (±1") BETWEEN BARS TO FACILITATE PLACEMENT.
3.SLOPE SHALL MATCH SIDE SLOPE; 6H:1V PREFERRED, NOT STEEPER THAN 4H:1V.
8"
D/4
SEE
NOTE
2 SEE
NOTE
2 SEE
NOTE
2
24"
6"
8"
CULVERT INVERT
CULVERT CROWN
FINISHED GROUND
FIELD CUT PIPE BEVEL
10" (TYP.)
1 1/2"
(TYP.)
3 1/2" (TYP.)
4"
(TYP.)
1" MAX.1" MAX.
3/4" MAX. (TYP.)
D-2", SEE NOTE 1
8"
INSTALL RESIN BONDED
ANCHOR (TYP.)
5 3/4"x3/4" DIA. THREADED
ROD, 4" EMBEDMENT WITH
HEX HEAD NUT (TYP.)
10" (TYP.)
1 1/2"
(TYP.)
3 1/2" (TYP.)
4"
(TYP.)
1" MAX.1" MAX.
3/4" MAX. (TYP.)
D-2", SEE NOTE 1
8"
INSTALL RESIN BONDED
ANCHOR (TYP.)
5 3/4"x3/4" DIA. THREADED
ROD, 4" EMBEDMENT WITH
HEX HEAD NUT (TYP.)
SECTION B
3 1/2"
VARIES
7/8" DIA. HOLE 3/8" x 4" x 10"
STEEL PLATE
3" x 3" x 5/16"
STRUCTURAL TUBING
(TYP.)
D/4 D
SEE NOTE 1 D/4
HEADWALL, SEE STD. PLAN
222.00 FOR DETAILS
SAFETY BAR (TYP.)
RESIN BONDED ANCHOR (TYP.)
3 1/2" x 3 1/2" BLOCKOUT (TYP.),
FIELD CUT CULVERT TO MATCH
BLOCKOUT IN HEADWALL
CULVERT PIPE
OR PIPE ARCHABC
CTYPE 2 SAFETY BARS FOR CULVERT OR
PIPE ARCH (ON CROSS ROADS)
STD. PLAN - 222.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SECTION A
PLAN VIEW
NOTES:
1.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED
STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE
GALVANIZED WITH TREATMENTS 1, 2, OR 5.
2.CONTRACTOR TO VERIFY DIMENSIONS.
A
3/4" DIA. BAR FRAME
4" CLEAR SPACING
INSERT ALUMINUM TRASH
RACK INTO BEVELED PIPE END
GROUND SURFACE
GROUND SURFACE
3" MIN.
4" CLEAR SPACING
4" CLEAR SPACING
FLOW
45°
ROLLED SMOOTH
16 GA. ALUMINUM PLATE
TO FIT INNER
DIAMETER OF PIPE
9"
1/4"x2" F.B. ANCHOR STRAPS. FASTEN WITH
1/2" GALVANIZED OR NON-CORROSIVE
BOLTS AND NUTS (TYP., 4 PLACES)
INSERT ALUMINUM TRASH
RACK INTO BEVELED PIPE END
6" CLEAR FROM DEBRIS BARRIER TO FINISHED GRADE
6" CLEAR FROM DEBRIS BARRIER TO FINISHED GRADE
DEBRIS BARRIER
STD. PLAN - 223.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
1.THIS TRENCH SHALL BE CONSTRUCTED SO AS TO PREVENT POINT DISCHARGE AND/OR EROSION.
2.TRENCHES MAY BE PLACED NO CLOSER THAN 50 FEET TO ONE ANOTHER, 10 FEET MINIMUM TO ANY BUILDING
(100 FEET ALONG FLOWLINE).
3.TRENCH AND GRADE BOARD MUST BE LEVEL. ALIGN TO FOLLOW CONTOURS OF SITE.
4.SUPPORT POST SPACING AS REQUIRED BY SOIL CONDITIONS TO ENSURE GRADE BOARD REMAINS LEVEL.
5.15% MAX UNLESS OTHERWISE EVALUATED AND APPROVED, SEE SECTION C.2.1.1.
6.GRADE BOARD AND SUPPORT POST TO BE UNTREATED CEDAR OR RECYCLED PLASTIC. SPACE SUPPORT POSTS
EVERY 10 FEET MINIMUM.
7.GEOTEXTILE TO BE NON-WOVEN TYPE FOR SEPARATION PER WSDOT 9-33.2(1).
NOTES:
INFLUENT PIPE (MAX DESIGN
FLOW <0.5 CFS PER TRENCH)
FLOW TO SECOND
DISPERSAL TRENCH
IF NECESSARY
FLOW TO OTHER
BRANCHING CB'S
AS NECESSARY
12"
MIN.
6" MIN.
12"
MIN.
50'
MAX.
NOTCHED GRADE BOARD,
2"x2" NOTCHES, 18" O.C.
2" GRADE BOARD
NOTCHES (TYP.)18" O.C.
2" (TYP.)
6" MIN. PERFORATED PIPE LAID FLAT/LEVEL
3/4" -1 1/2" WASHED DRAIN ROCK OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD. SPECIFICATION SECTION 9-03.12(5)
4"x4" SUPPORT POST, SEE NOTE 6
SECTION A
6" MIN.
12" MIN.
36" MAX.
WRAP TRENCH SIDES WITH
GEOTEXTILE (LEAVE TOP AND
BOTTOM EXPOSED), SEE NOTE 7
GALVANIZED BOLT (TYP.)
2"x12" GRADE BOARD,
SEE NOTE 6
NOTCH DETAIL
PLAN
A
15% MAX, SEE
NOTE 5
15% M
A
X
,
S
E
E
NOTE 5
TYPE 1 CB WITH
SOLID COVER
TYPE 1 CATCH BASIN
(CB) WITH SOLID COVER
CAPPED CLEANOUT
WYE FROM PIPE
END CAP OR PLUG
EXPOSED ROCK, DO NOT FILL
50-FOOT DISPERSION TRENCH WITH
NOTCHED BOARD
STD. PLAN - 224.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
NOTES:
1.SEE STD. PLANS 220.00 AND 220.10 FOR PIPE MATERIALS AND MINIMUM COVER REQUIREMENTS.
2.THE ROOF AND FOOTING DRAIN SYSTEMS ARE PRIVATELY MAINTAINED.
3.FLOW PATTERN SHOULD BE TO THE NEAREST CB IF GRADE ALLOWS, OR TO THE NEXT DOWNSTREAM CB.
4.ROOF DRAIN COLLECTORS MUST BE ANALYZED FOR CAPACITY, SIZED FOR 25-YEAR PEAK FLOW.
5.PVC PIPE MUST BE SDR 35 OR THICKER AND MEET THE REQUIREMENTS OF ASTM D3034.
6.PVC PIPE USED IN PRIVATELY MAINTAINED DRAINAGE SYSTEMS MUST BE WHITE IN COLOR.
7.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
8.AREA DRAIN WITHIN CRAWL SPACE IS ALLOWED TO CONNECT INTO THE STORM DRAINAGE SYSTEM WITH
THE FOLLOWING CONDITIONS:
A.THE CONNECTION IS TO BE TIGHT LINED A MINIMUM OF 10' OUTSIDE OF THE FOUNDATION, AND IN NO
CASE CONNECTED UPSTREAM OF THE FOOTING DRAIN SYSTEM FOR THE HOUSE.
B.THE AREA DRAIN MUST BE ROUTED THROUGH A SUMP PUMP SYSTEM PRIOR TO CONNECTION TO THE
PUBLIC STORM DRAINAGE SYSTEM TO HELP PREVENT BACKUP DURING SURCHARGE CONDITIONS.
SD SD SD SD
6" DIA MIN. ROOF DRAIN
STUB WITH CLEANOUT (TYP.)
LOT LINE, TYP.
PRIVATE TYPE I
CATCH BASIN
CITY STORM DRAIN (SD) SYSTEM
CLEANOUT, TYP AT EVERY 90°,
OR 2ND 45° BEND, AND AT 100' MAX.
SPACING ON STRAIGHT SECTIONS
ROOF DRAIN TO CONNECT INTO CITY
CATCH BASIN (CB), MIN. SIZE TYPE I
PRIVATE ROOF DRAIN
COLLECTOR PIPE;
6" DIA MIN.,
0.5% MIN. SLOPE,
2 FT MIN. COVER
CURB, SIDEWALK
R.O.W. LINE
5' MIN.
(TYP.)
HOUSE (TYP.)
PRIVATE JOINT
UTILITY EASEMENT
5' MIN. WIDTH
PRIVATE STORM DRAIN (SD) SYSTEM,
8" MIN. DIA. PIPE, SEE NOTE 1
3' MIN.
TYPICAL PRIVATE STORM DRAIN
COLLECTION SYSTEM
STD. PLAN - 225.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
12"
12"
YARD DRAIN OR CATCH BASIN
WITH SOLID LID
2' MIN.
SECTION A
PLAN
ELEVATION
HOUSE
HOUSE
5' MIN.10' MIN.SEE NOTE 2
ROOF DOWNSPOUT WITH OVERFLOW
WYE AND SPLASH BLOCK
6" DIA. MIN. PVC,
SDR 35 PER ASTM D3034
6" MIN.
FINE MESH SCREEN, SS304 10x10 OR SIMILAR
6" DIA. MIN. PERFORATED PVC,
SDR 35 PER ASTM D3034
NON-WOVEN GEOTEXTILE FOR SEPARATION
ON TOP AND SIDES OF TRENCH PER WSDOT
SPECIFICATIONS SECTION 9-33.2(1) TABLE 3
COMPACTED BACKFILL
6" DIA. MIN. PERFORATED PVC,
SDR 35 PER ASTM D3034
6" MIN.
6" MIN.
12" MIN.APERFORATED PIPE TO BE LEVEL
3/4" TO 1-1/2" WASHED DRAIN ROCK
OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD
SPECIFICATION SECTION 9-03.12(5)
12" MIN. ABOVE SEASONAL HIGH
GROUNDWATER OR HYDRAULICALLY
RESTRICTIVE LAYER
FLEXIBLE GASKETED
CAP PER ASTM D5926
NOTES:
1.15' MINIMUM SETBACK FROM INFILTRATION TRENCH TO BUILDINGS WITH CRAWL SPACES, BASEMENTS, OR ELEVATIONS
BELOW THE OVERFLOW POINT.
2.REQUIRED TRENCH LENGTH VARIES DEPENDING ON SOIL TYPE, UP TO 100' MAX. WHEN LOCATED IN COARSE SANDS OR
COBBLES, INFILTRATION TRENCHES MUST BE AT LEAST 20' IN LENGTH PER 1,000 SQUARE FEET OF IMPERVIOUS
SURFACE SERVED. WHEN LOCATED IN MEDIUM SANDS, INFILTRATION TRENCHES MUST BE AT LEAST 30' IN LENGTH PER
1,000 SQUARE FEET OF IMPERVIOUS SURFACE SERVED.
3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
6" MIN.
CLEANOUT
PER STD. PLAN 226.00
24" MIN.
SINGLE FAMILY ROOF DOWNSPOUT
INFILTRATION TRENCH
STD. PLAN - 225.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
TYPICAL CLEANOUT CONFIGURATION
GENERAL NOTES:
1.CLEANOUTS FOR UNDERDRAIN, FOOTING DRAIN COLLECTOR, AND ROOF DRAIN COLLECTOR PIPES SHALL BE INSTALLED AT A MINIMUM OF EVERY 100 FEET, AT
EVERY 90 DEGREE OR SECOND 45 DEGREE BEND, AT THE END OF EVERY COLLECTOR PIPE, AND AT EACH END OF AN UNDERDRAIN PIPE NOT CONNECTED TO AN
OVERFLOW STRUCTURE. CLEANOUTS SHALL BE INSTALLED TO ALLOW FOR MAINTENANCE ACCESS TO ALL PIPES.
2.ALL FITTINGS SHALL BE SOIL TIGHT.
3.CLEANOUT RISER SHALL BE LOCATED OUTSIDE OF BIORETENTION PONDING WHERE POSSIBLE.
4.CLEANOUTS SHALL NOT BE LOCATED WITHIN THE STREET TRAVEL LANE, UNLESS OTHERWISE APPROVED BY THE CITY.
DESIGN PONDING
ELEVATION
SOIL TIGHT 45° BEND
EXTEND CLEANOUT RISER
2" ABOVE DESIGN PONDING
ELEVATION OR PER PLAN
4" STREAMBED COBBLES
PER WSDOT 9-03.11(2)
SOIL TIGHT
COUPLER
UNDERDRAIN, FOOTING
DRAIN COLLECTOR, OR
ROOF DRAIN COLLECTOR
PIPE, SEE NOTE 1
WYE
MECHANICAL PLUG OR
CONTINUED CONNECTION
FERNCO GASKETED
QUIK CAP OR SIMILAR
CAST IRON FRAME AND
COVER, SEE NOTE 3
CLEANOUT RISER, SEE NOTE 2
PAVED AREA (TYP.)
TO OVERFLOW
STRUCTURE OR
STORM MAIN
CLEANOUT RISER LOCATED WITHIN
BIORETENTION PONDING AREA
NOTES:
1.DIAMETER TO BE 6-INCHES MINIMUM PRIVATE, 8-INCHES MINIMUM PUBLIC. UNDERDRAIN PIPE PER STD. PLAN 262.10.
2.CLEANOUT RISER SHALL BE SAME MATERIAL AS CONNECTED UNDERDRAIN, FOOTING DRAIN COLLECTOR, OR ROOF DRAIN COLLECTOR PIPE.
3.FRAME AND COVER SHALL BE EJ PRODUCTS 3675Z1PT AND 3675APT OR APPROVED EQUAL. COVER TO BE LOCKING WITH ALLEN HEAD BOLT, MARKED "STORM" OR
"DRAIN".
4.FOR CLEANOUTS FULLY OR PARTIALLY WITHIN UNPAVED AREAS OUTSIDE OF BIORETENTION PONDING AREA, POUR 8" THICK, 2'x2' SQUARE CONCRETE COLLAR
AROUND FRAME. CONCRETE COLLAR SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 3,000 PSI.
CLEANOUT RISER,
SEE NOTE 2
FRAME SECTION
10-1/2" DIA
4"
5/8"9" DIA
15" DIA
8-1/8" DIA
8-13/16" DIA
5/8"
COVER SECTION
MADE IN USA
1"
PLAN VIEW PROD NO.3/4" FLAT FACE GOTHIC
(2) 3/8"-16 SS SOCKET HEAD CAP
SCREW (ALLENHEAD) W/WSHRS
ON A 8" DIA BOLT CIRCLE
(1) OPEN PICKHOLE
12"12"
4" COMPACTED SAND OR
GRAVEL BACKFILL FOR DRAINS
PER WSDOT 9-03.12(4)
8" CLASS "B"
ASPHALT, SEE NOTE 4
STORM SYSTEM CLEANOUT
STD. PLAN - 226.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
12'/15' MAINTENANCE ACCESS ROADNOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE
CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.SEE STANDARD PLAN 234.10 FOR TYPICAL DETENTION POND CROSS SECTIONS.
3.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STANDARD PLAN 234.50.
4.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
5.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY.
6.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED
MIXTURE PER SECTION 5.1.1.1 OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS
OF THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE LANDSCAPED IN ACCORDANCE WITH LANDSCAPING REQUIREMENTS
INCLUDED IN SECTION 5.1.1.1 OF THE RENTON SWDM.
7.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STANDARD PLAN 234.40.
8.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
POND
DESIGN
WATER
SURFACE
15% MAX.FLOWTRACT LINES
AS REQUIRED
POND INLET
5' SETBACK MIN.
6" SEDIMENT
STORAGEFLOW
ACCESS RAMP
INTO POND
COMPACTED
EMBANKMENT
LEVEL
BOTTOM
FLOWFLOWEMERGENCY OVERFLOW
SPILLWAY ROCK LINING
CONTROL STRUCTURE
ALTERNATE EMERGENCY OUTFLOW STRUCTURE
FOR PONDS NOT REQUIRED TO PROVIDE A SPILLWAY
TOE OF SLOPE
QUARRY
SPALL PAD
3H:1V MAX.
3H:1V MAX.
3H:1V MAX.
TYPICAL DETENTION POND
STD. PLAN - 234.00C234.10PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)A234.10
B
234.10
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SCALE:
CROSS SECTION A
234.00NTS
EMERGENCY OVERFLOW WS
DESIGN WS
EMERGENCY OVERFLOW SPILLWAY
CROSS SECTION B HAS 2 OPTIONS
OVERFLOW WSPOND DESIGN WS
DESIGN WS
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STANDARD PLAN 234.50.
3.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
4.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY.
5.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1 OF THE CITY
OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS OF THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE LANDSCAPED IN
ACCORDANCE WITH LANDSCAPING REQUIREMENTS INCLUDED IN SECTION 5.1.1.1 OF THE RENTON SWDM.
6.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STANDARD PLAN 234.40.
7.SEE SECTION 5.1.1.2 OF THE RENTON SWDM TO CALCULATE THE REQUIRED WEIR WIDTH.
8.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN
EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
DEBRIS BARRIER PER
STD. PLAN 223.00
OVERFLOW WS
100 YR EMERGENCY OVERFLOW WATER SURFACE (WS)
OUTLET FLOW CONTROL STRUCTURE
PER STD. PLANS 237.00-237.20
6" SEDIMENT
STORAGE
TOP WIDTH OF
BERM. 6' MIN.
12'-15' MIN FOR
ACCESS ROAD
3
13
1
KEY, IF REQUIRED
BERM
EMBANKMENT
5' MIN.
SETBACK
PROPERTY LINE
EXISTING GROUND
CIRCUMFERENCE LENGTH OF
OPENING FOR 100-YR FLOW
FRAME/GRATE FOR SECONDARY INLET. PROVIDE
VERTICAL BARS IN FRAME AT 4" O.C. (OTHER
SYSTEMS ACCEPTABLE IF APPROVED BY THE CITY).
SEE ALSO THE SEPARATE OVERFLOW STRUCTURE,
STD. PLAN 234.20.
4" ASPHALT (FOR SPILLWAYS ON ACCESS ROADS)
VARIES, SEE NOTE 7
100-YR EMERGENCY
OVERFLOW WS
6" MIN. FREEBOARD
OVERFLOW WS
3
1 3
1
1' ROCK LINING
MAX STONE SIZE - 12"
MEDIAN STONE SIZE - 8"
MIN STONE SIZE - 4"
COMPACTED EMBANKMENT
ROCK LINING PER PER CROSS SECTION B
DESIGN WS
OVERFLOW WS
SCALE:
CROSS SECTION B
234.00NTS
SCALE:
CROSS SECTION C
234.00NTS
SECTION AA
EXISTING GROUND
6" MIN. FREEBOARD
SEE NOTE 8 (TYP.)XXSEE STD. PLAN 234.40 FOR FENCE REQUIREMENTS
TYPICAL DETENTION POND SECTIONS
STD. PLAN - 234.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
1.DIMENSIONS ARE FOR ILLUSTRATION OF 54" DIAMETER CB. FOR DIFFERENT DIAMETER CB'S ADJUST TO MAINTAIN 45°ANGLE OF
"VERTICAL" BARS AND 7" O.C. MAXIMUM SPACING OF BARS AROUND LOWER STEEL BAND.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE
GALVANIZED WITH TREATMENTS 1, 2, OR 5.
PLAN VIEW
NOTES:
SECTION A
A
3/4" DIAMETER SMOOTH BARS
EQUALLY SPACED (4" O.C. MAX.)
4 HOOK CLAMPS EVENLY
PLACED, SEE DETAIL
PROVIDE MAINTENANCE ACCESS BY
WELDING 4 CROSSBARS TO 4
VERTICAL BARS AS SHOWN. HINGE
UPPER ENDS WITH FLANGES/BOLTS
AND PROVIDE LOCKING MECHANISM
(PADLOCK) ON LOWER END. LOCATE
STEPS DIRECTLY BELOW
3/4" DIA. SMOOTH ROUND BARS
WELDED EQUALLY SPACED. BARS
SHALL BE WELDED TO UPPER AND
LOWER BANDS (24 BARS EVENLY
SPACED, SEE NOTE 1)
LOWER STEEL BAND 3/4" x 4"
WIDE FORMED TO FIT IN GROOVE
OF CATCH BASIN RISER
15° (TYP.),
SEE NOTE 1
24",
SEE NOTE 1
UPPER STEEL BAND
3/4" x 4" WIDE
STANDARD STEPS OR
LADDER, SEE NOTE 2
TYPE 2 CB
SMOOTH
VERTICAL BARS
HOOK CLAMP ANCHORED
TO CATCH BASIN RISER
CATCH BASIN
(CB) RISER
45°
HOOK CLAMP DETAIL
OVERFLOW STRUCTURE /
RISER WITH DEBRIS BARRIER
STD. PLAN - 234.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
Stormwater
Pond
This pond is in our care.
Runoff is held here after storms. It is released
slowly or stored until the next storm when it is
replaced by incoming flows. This helps prevent
downstream flooding and erosion and helps
clean the water. For more information or to report
littering, vandalism or other problems,
call the City of Renton, Public Works Department,
Maintenance Division at (425) 430-7400.
Pond Name and GIS Facility ID Number
SPECIFICATIONS:
SIZE:48 INCHES BY 24 INCHES
MATERIAL:0.125-GAUGE ALUMINUM
FACE:HP-700-O PERM KR M ITEM #62200M - BEIGE VINYL OR APPROVED EQUAL; DOL 6060 - UV/ANTI-GRAFFITI CLEAR OVERLAY FILM.
LETTERING:SILK SCREEN ENAMEL WHERE POSSIBLE, OR VINYL LETTERS.
COLORS:BEIGE BACKGROUND, TEAL LETTERS.
TYPE FACE:HELVETICA CONDENSED. TITLE: 3 INCH; SUB-TITLE: 1 1
2 - INCH; TEXT: 1 INCH; OUTER BORDER:
1
8 INCH BORDER DISTANCE FROM EDGE: 1
4 - INCH; ALL TEXT 1 3
4 - INCH FROM BORDER.
POSTS:PRESSURE TREATED, BEVELED TOPS, 1
2 - INCH HIGHER THAN SIGN
INSTALLATION:SECURE TO CHAIN LINK FENCE IF AVAILABLE. OTHERWISE INSTALL TWO 4"X4" POSTS, PRESSURE
TREATED, MOUNTED ATOP A GRAVEL BED, INSTALLED IN 30-INCH CONCRETE FILLED POST HOLES (8-INCH
MINIMUM DIAMETER), WITH THE TOP SIGN NO HIGHER THAN 42 INCHES FROM GROUND SURFACE.
PLACEMENT:FACE SIGN IN DIRECTION OF PRIMARY VISUAL OR PHYSICAL ACCESS. DO NOT BLOCK ANY ACCESS ROAD.
DO NOT PLACE WITHIN 6 FEET OF STRUCTURAL FACILITIES (E.G. MANHOLES, SPILLWAYS, PIPE INLETS).
POND NAME AND
GIS FACILITY ID
NUMBER: TO BE PROVIDED BY THE CITY DURING THE CONSTRUCTION PLAN APPROVAL. POND NAME IS THE NAME OF THE PROJECT
ON THE APPROVED CIVIL CONSTRUCTION PLANS.
NOTE: IF THE FACILITY HAS A LINER TO RESTRICT INFILTRATION OF STORMWATER, THE FOLLOWING NOTE MUST BE ADDED TO
THE FACE OF THE SIGN: "THIS FACILITY IS LINED TO PROTECT GROUNDWATER QUALITY." IN ADDITION, THE BACK OF THE SIGN SHALL
INCLUDE INFORMATION INDICATING WHICH FACILITIES ARE LINED, THE EXTENT OF THE LINING, THE LINER MATERIAL USED, THE LINER
THICKNESS (IF CLAY OR TILL), AND THE TYPE AND DISTANCE OF THE MARKER ABOVE THE LINER (IF A GEOMEMBRANE).
Public Works Department
Surface Water Utility
PUGET SOUND STARTS HERE LOGO SPECIFICATIONS:
COLORS:ORANGE (R223, G96, B32); TEAL (R0, G142, B179)
SPACING:KEEP ALL OTHER LOGOS, GRAPHICS, AND TYPE AT LEAST 1 UNIT AWAY FROM THE LOGO ON ALL SIDES. 1 UNIT IS THE
HEIGHT OF THE SMALL CAP "A" IN THE LOGO AT ANY GIVEN SIZE.
PERMANENT PUBLIC STORMWATER
POND SIGN
STD. PLAN - 234.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
Stormwater
Pond
This pond is in the care of the private
property owner(s).
Runoff is held here after storms. It is released
slowly or stored until the next storm when it is
replaced by incoming flows. This helps prevent
downstream flooding and erosion and helps
clean the water. For more information or to report
littering, vandalism or other problems,
call the City of Renton, Public Works Department,
Maintenance Division at (425) 430-7400.
Pond Name and GIS Facility ID Number
SPECIFICATIONS:
SIZE:48 INCHES BY 24 INCHES
MATERIAL:0.125-GAUGE ALUMINUM
FACE:HP-700-O PERM KR M ITEM #62200M - BEIGE VINYL OR APPROVED EQUAL; DOL 6060 - UV/ANTI-GRAFFITI CLEAR OVERLAY FILM.
LETTERING:SILK SCREEN ENAMEL WHERE POSSIBLE, OR VINYL LETTERS.
COLORS:BEIGE BACKGROUND, TEAL LETTERS.
TYPE FACE:HELVETICA CONDENSED. TITLE: 3 INCH; SUB-TITLE: 1 1
2 - INCH; TEXT: 1 INCH; OUTER BORDER:
1
8 INCH BORDER DISTANCE FROM EDGE: 1
4 - INCH; ALL TEXT 1 3
4 - INCH FROM BORDER.
POSTS:PRESSURE TREATED, BEVELED TOPS, 1
2 - INCH HIGHER THAN SIGN
INSTALLATION:SECURE TO CHAIN LINK FENCE IF AVAILABLE. OTHERWISE INSTALL TWO 4"X4" POSTS, PRESSURE
TREATED, MOUNTED ATOP A GRAVEL BED, INSTALLED IN 30-INCH CONCRETE FILLED POST HOLES (8-INCH
MINIMUM DIAMETER), WITH THE TOP SIGN NO HIGHER THAN 42 INCHES FROM GROUND SURFACE.
PLACEMENT:FACE SIGN IN DIRECTION OF PRIMARY VISUAL OR PHYSICAL ACCESS. DO NOT BLOCK ANY ACCESS ROAD.
DO NOT PLACE WITHIN 6 FEET OF STRUCTURAL FACILITIES (E.G. MANHOLES, SPILLWAYS, PIPE INLETS).
POND NAME AND
GIS FACILITY ID
NUMBER: TO BE PROVIDED BY THE CITY DURING THE CONSTRUCTION PLAN APPROVAL. POND NAME IS THE NAME OF THE PROJECT
ON THE APPROVED CIVIL CONSTRUCTION PLANS.
NOTE: IF THE FACILITY HAS A LINER TO RESTRICT INFILTRATION OF STORMWATER, THE FOLLOWING NOTE MUST BE ADDED TO
THE FACE OF THE SIGN: "THIS FACILITY IS LINED TO PROTECT GROUNDWATER QUALITY." IN ADDITION, THE BACK OF THE SIGN SHALL
INCLUDE INFORMATION INDICATING WHICH FACILITIES ARE LINED, THE EXTENT OF THE LINING, THE LINER MATERIAL USED, THE LINER
THICKNESS (IF CLAY OR TILL), AND THE TYPE AND DISTANCE OF THE MARKER ABOVE THE LINER (IF A GEOMEMBRANE).
Public Works Department
Surface Water Utility
PUGET SOUND STARTS HERE LOGO SPECIFICATIONS:
COLORS:ORANGE (R223, G96, B32); TEAL (R0, G142, B179)
SPACING:KEEP ALL OTHER LOGOS, GRAPHICS, AND TYPE AT LEAST 1 UNIT AWAY FROM THE LOGO ON ALL SIDES. 1 UNIT IS THE
HEIGHT OF THE SMALL CAP "A" IN THE LOGO AT ANY GIVEN SIZE.
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
PERMANENT PRIVATE STORMWATER
POND SIGN
STD. PLAN - 234.35
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
12'/15' MAINTENANCE ROADFLOWPOND INLET
FLO
W
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY.
ACTUAL CONFIGURATION WILL VARY DEPENDING ON
SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.ON STORMWATER FACILITIES TO BE MAINTAINED BY THE
CITY, A FENCE SHALL BE PLACED AT THE TOP OF THE BERM
WITH THE MAINTENANCE ACCESS ROAD IN THE INSIDE OF
THE FENCE; OR 5 FEET MIN. FROM TOP OF BERM IF THERE
IS NO MAINTENANCE ACCESS ROAD. NO LANDSCAPING IS
ALLOWED INSIDE THE FENCE. ON STORMWATER FACILITIES
TO BE PRIVATELY MAINTAINED, THE FENCE MAY BE PLACED
ALONG TRACT BOUNDARY UNLESS LANDSCAPING IS
REQUIRED WITHIN TRACT TO SCREEN THE POND AND
FENCE.
3.LANDSCAPING, SHALL BE PLANTED IN ACCORDANCE WITH
THE REQUIREMENTS INCLUDED IN SECTION 5.1.1.1 OF THE
CITY OF RENTON SURFACE WATER DESIGN MANUAL
(SWDM), WHICH PRECLUDES LANDSCAPING IN ANY BERMS
THAT IMPOUND WATER OR WITHIN 10 FEET OF ANY
STRUCTURE.
4.LANDSCAPING IS PROHIBITED IN THE INSIDE SLOPE OF THE
POND OR ON ANY BERMS THAT IMPOUND WATER.
5.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR
SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN
APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1 OF THE
RENTON SWDM. ALL REMAINING AREAS OF THE TRACT
MUST EITHER BE PLANTED WITH GRASS OR BE
LANDSCAPED IN ACCORDANCE WITH LANDSCAPING
REQUIREMENTS INCLUDED IN SECTION 5.1.1.1 OF THE
RENTON SWDM.
6.ALL TREES AND OTHER PLANTINGS SHALL CONFORM TO
THE RENTON SWDM REQUIREMENTS AND RESTRICTIONS
REGARDING LOCATION OVER OTHER INFRASTRUCTURE
SUCH AS WATER, SEWER, POWER, ETC.
7.FOR FENCES TO BE MAINTAINED BY THE CITY, SEE STD.
PLANS 234.60 AND 234.70 FOR DETAILS.
8.WOOD FENCES ARE ALLOWED IN SUBDIVISIONS WHERE THE
FENCE AND STORMWATER FACILITY WILL BE MAINTAINED
BY HOMEOWNERS ASSOCIATIONS OR ADJACENT LOT
OWNERS OR IN PRIVATE COMMERCIAL OR INDUSTRIAL
SITES WHERE THE FENCE AND STORMWATER FACILITY WILL
BE PRIVATELY MAINTAINED. THE WOOD FENCE SHALL BE
PLACED ON PRIVATE PROPERTY.
9.WOOD FENCES (WHEN ALLOWED BY THE CITY) SHALL HAVE
PRESSURE-TREATED POST (GROUND CONTACT RATED)
EITHER SET IN 24-INCH DEEP CONCRETE FOOTINGS OR
ATTACHED TO FOOTINGS BY GALVANIZED BRACKETS. RAILS
AND FENCE BOARDS SHALL BE CEDAR OR
PRESSURE-TREATED FIR OR HEMLOCK.
10.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT
REQUIREMENTS.
LANDSCAPING ALLOWED PER SECTION 5.1.1.1 OF THE RENTON SWDM
SOD OR SEED WITH APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1 OF THE RENTON SWDM
ONLY GRASS AND/OR SMALL SHRUBS MAY BE ALLOWED. IF NO LANDSCAPING IS PROPOSED
AND FENCE IS LOCATED IN TRACT LINE, THEN ONLY GRASS IS ALLOWED IN THIS SECTION.
OWNERSHIP OF STORMWATER TRACT IN RESIDENTIAL PLATS WITH PUBLIC STREETS:
OWNERSHIP AND MAINTENANCE OF THE STORMWATER TRACT WILL BE THE RESPONSIBILITY OF THE
PROPERTY OWNERS WITHIN THE SUBDIVISION. THE HOME OWNERS ASSOCIATIONS (HOA) WILL BE
RESPONSIBLE FOR THE MAINTENANCE OF SAID STORMWATER TRACT EXCLUDING THE DRAINAGE
FACILITIES CONTAINED THEREIN. A NOTE THAT ASSIGNS EACH PROPERTY OWNER AS HAVING EQUAL
AND UNDIVIDED INTEREST OVER THE MAINTENANCE OF THE STORMWATER TRACT SHALL BE PLACED IN
THE FINAL PLAT. AN OVERLYING EASEMENT UNDER AND UPON SAID DRAINAGE TRACT SHALL BE
CONVEYED TO THE CITY OF RENTON FOR THE PURPOSE OF OPERATING, MAINTAINING, IMPROVING,
REPLACING AND KEEPING IN GOOD REPAIR THE DRAINAGE FACILITIES CONTAINED THEREIN. IF NO
LANDSCAPING IS PROPOSED IN THE STORMWATER TRACT, THEN THE STORMWATER TRACT CAN BE
DEDICATED TO THE CITY. ALL OTHER FACILITIES ARE TO BE PRIVATELY OWNED AND MAINTAINED.
5' SETBACK
POND DESIGN
WATER SURFACE
TRACT BOUNDARY
6" SEDIMENT
STORAGE
ACCESS RAMP
EMERGENCY OVERFLOW
SPILLWAY ROCK LINING
CONTROL STRUCTURE
3:1 MIN. SIDE SLOPES. VERTICAL
WALLS ALLOWED. FENCE
REQUIRED ON TOP OF WALL
FENCE LOCATION AS REQUIRED.
REFER TO NOTES FOR FENCE
LOCATION ON DEVELOPMENTS
PROPOSING LANDSCAPING
WITHIN STORMWATER TRACTS
LEGEND:
LANDSCAPING, TREES, POND
GEOMETRY, AND FENCING DETAILS
STD. PLAN - 234.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.ACCESS ROADS SHALL BE LOCATED IN THE STORMWATER TRACT OR PUBLIC RIGHT-OF-WAY AND SHALL BE CONNECTED TO AN IMPROVED
PUBLIC RIGHT-OF-WAY.
2.MAINTENANCE ACCESS ROAD(S) SHALL BE PROVIDED TO THE CONTROL STRUCTURE AND OTHER DRAINAGE STRUCTURES ASSOCIATED WITH
THE POND (E.G., INLET, EMERGENCY OVERFLOW, OR BYPASS STRUCTURES). MANHOLE AND CATCH BASIN LIDS MUST BE IN OR AT THE EDGE OF
THE ACCESS ROAD AND AT LEAST THREE FEET FROM A PROPERTY LINE. RIMS SHALL BE SET AT THE ACCESS ROAD GRADE.
3.AN ACCESS RAMP IS REQUIRED FOR REMOVAL OF SEDIMENT WITH A TRACKHOE AND TRUCK. THE RAMP MUST EXTEND TO THE POND BOTTOM IF
THE POND BOTTOM IS GREATER THAN 1,500 SQUARE FEET (MEASURED WITHOUT THE RAMP) AND IT MAY END AT AN ELEVATION 4 FEET ABOVE
THE POND BOTTOM IF THE POND BOTTOM IS LESS THAN 1,500 SQUARE FEET (MEASURED WITHOUT THE RAMP), PROVIDED THE POND SLOPES
ARE 3H:1V OR FLATTER.
4.THE INTERNAL BERM OF A WETPOND OR COMBINED DETENTION AND WETPOND MAY BE USED FOR ACCESS IF IT IS NO MORE THAN 4 FEET
ABOVE THE FIRST WETPOOL CELL, IF THE FIRST WETPOOL CELL IS LESS THAN 1,500 SQUARE FEET (BOTTOM AREA MEASURED WITHOUT THE
RAMP), AND IF IT IS DESIGNED TO SUPPORT A LOADED TRUCK, CONSIDERING THE BERM IS NORMALLY SUBMERGED AND SATURATED.
5.ACCESS SHALL BE LIMITED BY A DOUBLE-POSTED GATE IF A FENCE IS REQUIRED, OR BY BOLLARDS. BOLLARDS SHALL BE DESIGNED IN
ACCORDANCE WITH THE CITY OF RENTON STANDARD PLANS.
6.ACCESS ROADS AND RAMPS SHALL MEET THE FOLLOWING DESIGN CRITERIA:
6.1.MAXIMUM GRADE SHALL BE 15% FOR ASPHALT PAVING AND 12% FOR GRAVEL.
6.2.OUTSIDE TURNING RADIUS SHALL BE 40 FEET MINIMUM.
6.3.FENCE GATES SHALL BE LOCATED ONLY ON STRAIGHT SECTIONS OF ROAD.
6.4.ACCESS ROADS AND RAMPS SHALL BE 15 FEET IN WIDTH ON CURVES AND 12 FEET ON STRAIGHT SECTIONS.
6.5.A PAVED APRON SHALL BE PROVIDED WHERE ACCESS ROADS AND RAMPS CONNECT TO PAVED PUBLIC ROADWAYS. THE APRON SHALL BE
CONSISTENT WITH DRIVEWAY DETAILS IN THE CITY OF RENTON STANDARD PLANS. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT
REQUIREMENTS.
7.ACCESS ROADS AND RAMPS SHALL BE CONSTRUCTED WITH EITHER THE GRAVEL ROAD OPTION OR ASPHALT ROAD OPTION. WHERE ACCESS
ROADS AND RAMPS PASS OVER EMERGENCY OVERFLOW SPILLWAYS, AN HMA WEARING COURSE IS REQUIRED (SEE STANDARD PLAN 234.10).
8.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
4" CRUSHED
SURFACING TOP
COURSE (CSTC)
PER WSDOT STD.
SPEC 9-03.9(3)
12" QUARRY
SPALLS PER
WSDOT STD.
SPEC 9-13.1(5)
4" HOT MIX
ASPHALT (HMA)
6" CRUSHED
SURFACING
BASE COURSE
(CSBC) PER
WSDOT STD.
SPEC 9-03.9(3)
12' OR 15', SEE NOTE 6.4 12' OR 15', SEE NOTE 6.4
GRAVEL ROAD OPTION ASPHALT ROAD OPTION
WOVEN GEOTEXTILE FABRIC FOR
SEPARATION PER TABLE 3 FROM
WSDOT STD. SPEC 9-33.2(1)
ACCESS ROAD AND RAMP
STD. PLAN - 234.50
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
GENERAL NOTES:1.FENCE MATERIAL SHALL BE 9 GAUGE GALVANIZED STEEL FABRIC WITH BONDED VINYL COATING. VINYL COATING SHALL BE COMPATIBLE WITH THE SURROUNDING ENVIRONMENT AS APPROVED BY THE CITY (E.G.GREEN IN OPEN, GRASSY AREAS AND BLACK IN WOODED AREAS). ALL POSTS, CROSS BARS, AND GATES SHALL BE PAINTED OR COATED THE SAME COLOR AS VINYL CHAIN LINK FENCE.2.UNLESS OTHERWISE SPECIFIED ON STD. PLAN 234.60 OR 234.70, STANDARD MATERIALS USED IN CONSTRUCTION OF CHAIN LINK FENCE AND GATES SHALL BE IN ACCORDANCE WITH WSDOT STD. SPEC SECTION 9-16.1.3.ALONG THE TOP AND BOTTOM, USING WIRE TIES AND HOG RINGS, FASTEN THE CHAIN LINK FENCE FABRIC TO THE TOP RAIL AND TENSION WIRE WITHIN THE LIMITS OF THE FIRST FULL FABRIC WEAVE.4.WITHIN 10 FEET OF A TRAVELED LANE, USE TENSION WIRE INSTEAD OF A TOP RAIL.5.BOTH SIDES OF A CORNER POST SHALL CONNECT TO A PULL POST (SEE END DEPICTION).6.IF SOIL ALLOWS, LINE POSTS MAY BE DRIVEN DIRECTLY INTO GROUND A MINIMUM OF 2'-6" INSTEAD OF USING CONCRETE POST BASE.LINE POSTGATEPOST, FRAME, AND RAIL SPECIFICATIONS(HIGH STRENGTH SCHEDULE 40 GALVANIZED PIPE)MEMBEROUTSIDE DIAMETER O.D.WEIGHT (LB/FT)GATE POST4"6.56END POST / CORNER POST /PULL POST2-7/8"4.64LINE POST2-3/8"3.12GATE FRAME1-7/8"2.28TOP RAIL1-5/8"1.83TIE WIRES (TYP.)SPACED @ 14" MAX.LINE POST SPACED@ 10' MAX.6' FABRICHEIGHT(TYP.)2'-6"(TYP.)TIE WIRES (TYP.)SPACED @14" MAX.CHAIN LINK FENCEFABRIC (TYP.)PULL POST(AT GATE)TENSIONWIRE (TYP.)3'-0" (TYP.)GATE POST12" ROUNDTRUSSROD (TYP.)TIE WIRES (TYP.)SPACED @14" MAX.MATCH FENCE SELVAGE (TYP.)MATCH FENCESELVAGE (TYP.)16'10'TOP HINGE ~180°SWING (TYP.)I234.70TOP RAIL (TYP.),SEE NOTE 4PULL POST(AT GATE)TENSIONWIRE (TYP.)BOTTOM HINGE~180° SWING (TYP.)18"HOG RINGS (TYP.)SPACED @ 24" MAX.J234.70K234.70FABRIC BAND WITHCARRIAGE BOLT AND NUT(TYP.) SPACED @ 15" MAXSTRETCHER BAR (TYP.)6'FABRICHEIGHT(TYP.)SEE NOTE 612" ROUND12" ROUND10" MIN. ROUND10" MIN.ROUNDG234.70H234.70E234.70GATE POSTGATE LATCHGATE FRAME (TYP.)E234.70F234.70CORNEREND10' MAX.END POSTTENSIONWIRE (TYP.)A234.70FABRIC BAND WITH CARRIAGEBOLT AND NUT (TYP.)SPACED @ 15" MAXSTRETCHERBAR (TYP.)TENSIONWIRE (TYP.)HOG RINGS (TYP.)SPACED @ 24" MAX.TOP RAIL (TYP.),SEE NOTE 4C234.703'-0"(TYP.)~1"TIE WIRES (TYP.)SPACED @14" MAX.CONCRETE POST BASE (TYP.)10" DIA MIN.KNUCKLEDSELVAGE (TYP.)PULL POST(AT END ORCORNER)B234.70D234.70CHAIN LINKFENCE FABRIC(TYP.)CORNER POST,SEE NOTE 56"(TYP.)6'FABRICHEIGHT(TYP.)PUBLIC WORKSDEPARTMENTAPPROVED:DATEMartin PastuchaPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)POND FENCING AND GATESTD. PLAN - 234.60DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C1088/13/2020 | 8:48 AM PDT
SCALE:DETAIL - GATE POST BOTTOMJ234.60NTSSCALE:DETAIL - PULL POST BOTTOM(AT GATE)K234.60NTSSCALE:DETAIL - GATE POST TOPI234.60NTSSCALE:DETAIL - LINE POST TOPG234.60NTSSCALE:DETAIL - LINE POST BOTTOMH234.60NTSTENSION WIRE (TYP.)TURNBUCKLEFABRIC BAND WITH CARRIAGEBOLT AND NUT (TYP.)SPACED @ 15" MAXSTRETCHER BAR (TYP.)EYE BOLTBOTTOM HINGESTRETCHER BAR (TYP.)FABRIC BAND WITH CARRIAGEBOLT AND NUT (TYP.)SPACED @ 15" MAXEYE BOLTTENSION WIRE (TYP.)EYE NUTTURNBUCKLETOP RAILTENSION WIRESTRETCHER BARGATE POSTGATE POSTPULL POSTLINE POSTTENSION WIRETOP RAILLINE POSTFABRIC BAND WITHCARRIAGE BOLT AND NUTSPACED @ 15" MAXTIE WIRES (TYP.)SPACED @ 14" MAX.TIE WIRESSPACED @ 14" MAX.HOG RINGS (TYP.)SPACED @ 24" MAX.HOG RINGSSPACED @ 24" MAX.HOG RINGS (TYP.)SPACED @ 24" MAX.TIE WIRES (TYP.)SPACED @ 14" MAX.SCALE:DETAIL - END POST TOPA234.60NTSSCALE:DETAIL - END POST BOTTOMB234.60NTSFABRIC BAND WITHCARRIAGE BOLT ANDNUT SPACED @ 15" MAXBRACE BANDWITH CARRIAGEBOLT AND NUTTOP RAILSTRETCHERBAREND POSTTIE WIRESSPACED @ 14" MAX.TURNBUCKLETENSION WIRE (TYP.)BRACE BAND WITHCARRIAGE BOLT AND NUTSTRETCHER BARFABRIC BAND WITHCARRIAGE BOLT ANDNUT SPACED @ 15" MAXEND POSTHOG RINGSSPACED @ 24" MAX.BRACE BAND WITHCARRIAGE BOLTAND NUT (TYP.)TOP HINGETRUSS RODTRUSS RODDOME TOPRAIL ENDDOME TOPEYE TOPRAIL ENDGATE FRAME(TYP.)GATE FRAME(TYP.)SCALE:DETAIL - PULL POST TOPC234.60NTSSCALE:DETAIL - PULL POST BOTTOM(AT END OR CORNER)D234.60NTSSCALE:DETAIL - CORNER POST TOPE234.60NTSSCALE:DETAIL - CORNER POST BOTTOMF234.60NTSTOP RAILBRACE BAND WITHCARRIAGE BOLT AND NUTFABRIC BAND WITHCARRIAGE BOLT AND NUT(TYP.) SPACED @ 15" MAXSTRETCHER BAR (TYP.)TENSIONWIRETENSION WIRE (TYP.)TWO-WAY BRACE BAND WITHCARRIAGE BOLTS AND NUTSFABRIC BAND WITHCARRIAGE BOLT AND NUT(TYP.) SPACED @ 15" MAXSTRETCHERBAR (TYP.)PULL POSTPULL POSTFABRIC BAND WITHCARRIAGE BOLTAND NUT (TYP.)SPACED @ 15" MAXBRACE BAND WITHCARRIAGE BOLTAND NUT (TYP.)TOP RAIL (TYP.)STRETCHERBAR (TYP.)CORNER POSTTURNBUCKLE (TYP.)TENSION WIRE (TYP.)BRACE BAND WITH CARRIAGEBOLT AND NUT (TYP.)STRETCHER BAR (TYP.)FABRIC BAND WITHCARRIAGE BOLT AND NUT(TYP.) SPACED @ 15" MAXCORNER POSTTIE WIRES (TYP.)SPACED @ 14" MAX.TIE WIRES (TYP.)SPACED @ 14" MAX.HOG RINGS (TYP.)SPACED @ 24" MAX.HOG RINGS (TYP.)SPACED @ 24" MAX.RAIL END (TYP.)DOME TOPEYE TOPPUBLIC WORKSDEPARTMENTAPPROVED:DATEMartin PastuchaPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)POND FENCING AND GATE - POST DETAILSSTD. PLAN - 234.70DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C1088/13/2020 | 8:48 AM PDT
"FLOW-THROUGH" SYSTEM SHOWN SOLID.
DESIGNS FOR "FLOW BACKUP" SYSTEM AND
PARALLEL TANKS SHOWN DASHED
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE
DESIGN CRITERIA.
2.MINIMUM TANK DIAMETER IS 36 INCHES.
3.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1,
2, OR 5.
4.ACCESS RISERS REQUIRED WITHIN 50 FEET FROM ANY LOCATION IN THE DETENTION TANK AND WITHIN 5 FEET OF EACH TERMINAL END. ANY LOCATION WITHIN
THE DETENTION TANK SHALL HAVE A DIRECT LINE OF SIGHT FROM AN ACCESS POINT, UNOBSTRUCTED BY ANY RESTRICTIONS SUCH AS A WALL OR BAFFLE.
5.H-20 LIVE LOADS MUST BE ACCOMMODATED FOR TANKS LYING UNDER PARKING AREAS, ROADWAYS, AND ACCESS ROADS.
6.BEDDING OF THE PIPE SHALL BE IN ACCORDANCE WITH STD. PLAN 220.00.
7.PRIOR TO STARTUP, DETENTION TANK SHALL PASS LEAK TEST.
8.PIPE MATERIAL, JOINTS, AND PROTECTIVE TREATMENT FOR TANKS SHALL BE IN ACCORDANCE WITH SECTIONS 7-04 AND 9-05 OF THE WSDOT/APWA STANDARD
SPECIFICATION.
9.ALL TANK ACCESS OPENINGS MUST BE READILY ACCESSIBLE BY MAINTENANCE VEHICLES.
10.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN
CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
11.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
NOTES:
SECTION A
PLAN
INLET PIPE
(BACKUP SYSTEMS,
WHERE ALLOWED)
INLET PIPE
(FLOW THROUGH)
FLOW
2' MIN.
36" MIN.
36" MIN. CONNECTOR PIPE
SAME SIZE AS INLET PIPE,
12" MIN. DIA.
TYPE 2 CATCH BASIN (CB)
REQUIRED FOR FLOW THROUGH
SYSTEM ONLY PER STD. PLAN 201.00
OPTIONAL PARALLEL TANK
ACCESS RISERS, SEE NOTE 4
ACCESS RISERS PER
STD. PLAN 235.10
CONTROL
STRUCTURE WITH
SOLID LOCKING LID
2' MAX.
50' MAX.100' MAX.
6" SEDIMENT STORAGE
2' MIN.
2' MIN.
2" MIN. DIA. AIR VENT PIPE
WELDED TO TANK (REQUIRED
IF NO ACCESS RISER ON TANK)
ACCESS RISERS, SEE
STD. PLAN 235.10
36" MIN. DIA. (TYP.)
CONTROL STRUCTURE (FROP-T
SHOWN), MIN. 54" DIA. TYPE 2 CB
PER STD. PLAN 237.00
DETENTION TANK
(SIZE AS REQUIRED)
A
OUTLET PIPE
FINISH GRADE
2' MIN.
SEE NOTE 10 (TYP.)
SEE NOTE 10
(TYP.)
FLOW RESTRICTOR PER STD. PLAN 237.00
6" MIN.
FLOW
5' MAX.
TERMINAL END
TYPICAL DETENTION TANK
STD. PLAN - 235.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
1.USE ADJUSTING BLOCKS AS REQUIRED TO BRING FRAME TO GUIDE.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS
MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
3.MUST BE LOCATED FOR ACCESS BY MAINTENANCE VEHICLES.
4.MAY SUBSTITUTE WSDOT SPECIAL TYPE IV MANHOLE (RCP ONLY).
5.TOP SLAB SHALL BE RATED FOR HS-20 LOADING.
6.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3.
PLAN
SECTION
STANDARD TYPE 2, 60" DIA. CATCH
BASIN (CB) CONCRETE TOP SLAB
36" CMP RISER
FRAME LOCKING LID (MARKED "DRAIN")
MOUNTED OVER 24" DIA. ECCENTRIC OPENING
36"
24" MAX.
6"
24-INCH BOLT LOCKING RING AND COVER. ADJUSTMENT RINGS
AS NECESSARY, PER STANDARD PLANS 204.40 AND 204.50
CRUSHED SURFACING TOP COURSE PER
WSDOT STD. SPEC 9-03.9(3) COMPACTED
TO 95% MAX DENSITY (TYP.)
MANHOLE STEPS, 12" O.C.
WELD OR BOLT STANDARD MANHOLE STEPS
DETENTION TANK
RISER, 36" DIA. MIN., SAME MATERIAL AND
GAUGE AS TANK WELDED OR FUSED TO TANK
NOTES:
LADDER
MAINTAIN 1" GAP BETWEEN BOTTOM OF
SLAB AND TOP OF RISER. PROVIDE
PLIABLE GASKET TO EXCLUDE DIRT
PLACE CEMENT MORTAR SEAL BETWEEN
TOP SLAB AND MANHOLE, SEE NOTE 6
Ø24"
DETENTION TANK ACCESS
STD. PLAN - 235.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
DESIGN WATER
SURFACE
OPTIONAL
5'x10' ACCESS VAULT
MAY BE USED IN
LIEU OF TOP ACCESS
OUTLET PIPE
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
3.PROVIDE WATER STOP AT ALL CAST-IN-PLACE CONSTRUCTION JOINTS. PRECEAST VAULTS SHALL HAVE APPROVED RUBBER GASKET SYSTEM.
4.VAULTS <10' WIDE MUST USE REMOVABLE LIDS.
5.PREFABRICATED VAULT SECTIONS MAY REQUIRE STRUCTURAL MODIFICATIONS TO SUPPORT 5' X 10' OPENING OVER MAIN VAULT. ALTERNATIVELY, ACCESS CAN BE
PROVIDED VIA A SIDE VESTIBULE AS SHOWN.
6.ALL VAULT AREAS MUST BE WITHIN 50' OF AN ACCESS POINT.
7.FOR VAULTS UNDER ROADWAYS, THE REMOVABLE PANEL MUST BE LOCATED OUTSIDE THE TRAVEL LANES. ALTERNATIVELY, MULTIPLE STANDARD LOCKING MANHOLE
COVERS MAY BE PROVIDED. SPACING OF MANHOLE COVERS SHALL BE 12 FEET, MEASURED ON CENTER, TO FACILITATE REMOVAL OF SEDIMENT. LADDERS AND
HAND-HOLDS NEED ONLY BE PROVIDED AT THE OUTLET PIPE AND INLET PIPE.
8.MINIMUM DIAMETER FOR ALL ACCESS OPENINGS (RISERS), EXCEPT THOSE COVERED BY REMOVABLE PANELS, IS 36 INCHES.
9.VAULTS PROVIDING MANHOLE ACCESS AT 12 FOOT SPACING NEED NOT PROVIDE CORNER VENTILATION PIPES. VENTILATION PIPES SHALL BE CAPPED OR OTHERWISE
COVERED, BUT DESIGNED SO THAT MAINTENANCE PERSONNEL CAN REMOVE FOR VENTILATION.
10.FOR RAISED OPENINGS WHERE THE DEPTH FROM THE IRON COVER TO THE TOP OF THE VAULT EXCEEDS 24 INCHES, AN ACCESS STRUCTURE EQUIVALENT TO A TYPE 2
CATCH BASIN OR TYPE 1 MANHOLE SHALL BE USED.
11.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING
TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
12.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
FLOW
5%5%FLOW
5'
10'
5'x10' REMOVABLE LOCKING
PANEL FOR VAULTS GREATER
THAN 1,250 SF OF FLOOR AREA
FLOW
WALL FLANGE, TYP
16" MAX.
4" MIN.
12"
12"
6" SEDIMENT STORAGE
FRAMES, GRATES, AND ROUND SOLID
COVERS MARKED "DRAIN" WITH LOCKING
BOLTS PER STD. PLANS 204.40 AND 204.50
PLAN VIEW
6" MIN.
2' MIN.
2' MIN.
4' MIN.
NOTES:
HANDHOLDS, STEPS
OR LADDER
CAPACITY OF OUTLET PIPE
NOT LESS THAN DEVELOPED
100 - YR DESIGN FLOW
FLOW RESTRICTOR
FLOW
SECTION A
A
SUMP AREA
SEE NOTE 11 (TYP.)
SEE NOTE 11 (TYP.)
12" MIN. VENTILATION PIPE (TYP),
SEE NOTE 9
ACCESS MANHOLE WITH 24" BOLT
LOCKING RING AND COVER PER
STD. PLANS 204.40 AND 204.50
4' MIN.
SEE NOTE 11 (TYP.)
SEE NOTE 11 (TYP.)
2' MIN. COVER,
SEE NOTE 10
7' MIN.
5'x10' GRATE
ACCESS DOORS OR
REMOVABLE PANEL
TYPICAL DETENTION VAULT
STD. PLAN - 236.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
d
ISOMETRIC
SECTION A
PLAN VIEW
ELBOW RESTRICTOR DETAIL
1.USE A MIMIMUM OF A 54" DIAMETER TYPE 2 CATCH BASIN.
2.OUTLET CAPACITY: 100-YEAR DEVELOPED PEAK FLOW.
3.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
4.FRAME AND LADDER OR STEPS OFFSET SO:
A. CLEANOUT GATE IS VISIBLE FROM TOP.
B. CLIMB-DOWN SPACE IS CLEAR OF RISER AND CLEANOUT GATE.
C. FRAME IS CLEAR OF CURB.
5.IF METAL OUTLET PIPE CONNECTS TO CEMENT CONCRETE PIPE: OUTLET PIPE TO HAVE SMOOTH O.D. EQUAL TO CONCRETE PIPE I.D. LESS 1/4".
6.PROVIDE AT LEAST ONE 3" X .090 GAGE SUPPORT BRACKET ANCHORED TO CONCRETE WALL. (MAXIMUM 3'-0" VERTICAL SPACING).
7.LOCATE ELBOW RESTRICTOR(S) AS NECESSARY TO PROVIDE MINIMUM CLEARANCE AS SHOWN.
8.LOCATE ADDITIONAL LADDER RUNGS IN STRUCTURES USED AS ACCESS TO TANKS AND VAULTS TO ALLOW ACCESS WHEN CATCH BASIN IS FILLED WITH WATER.
9.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING
TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
10.IF TEE SECTION IS USED ONLY FOR SPILL CONTROL, THEN ELBOW RESTRICTORS AND RESTRICTOR PLATES WITH ORIFICES ARE NOT REQUIRED.
NOTES:
2" MIN.
6" MIN.
6" MAX.
REMOVABLE WATERTIGHT
COUPLING OR FLANGE
PLATE WELDED TO ELBOW WITH
ORIFICE AS SPECIFIED, SEE NOTE 3
DESIGN WATER
SURFACE
16" MAX.
12" MIN. UNDER
PAVEMENT
6" MIN.
D
1.5 x D
MIN.2' MIN.
2'
MIN.
2'
MIN.
12"
12" (TYP.)
FRAME & SOLID COVER MARKED "DRAIN" WITH
LOCKING BOLTS PER STD. PLANS 204.40 AND 204.50
VERTICAL BAR GRATE FOR
SECONDARY INLET
HANDHOLDS, STEPS, OR LADDER
SHEAR GATE WITH CONTROL ROD FOR
CLEANOUT/DRAIN (ROD BENT AS REQUIRED
FOR VERTICAL ALIGNMENT WITH COVER)
PER STD. PLAN 237.30
INLET PIPEOUTLET PIPE, SEE
NOTES 1 & 5
INVERT AND
ELEVATION PER PLANS
WELDED RESTRICTOR PLATE WITH
ORIFICE DIA AS SPECIFIED, SEE NOTE 10
2' MIN. CLEARANCE TO
ANY PORTION OF FLOW RESTRICTOR
TEE INCLUDING ELBOWS
2' MIN,
ANGLE AS
NECESSARY,
SEE NOTE 7
ELBOW RESTRICTOR,
SEE DETAIL AND NOTE 10
ADDITIONAL LADDER RUNGS (IN SETS) TO
ALLOW ACCESS TO TANKS OR VAULTS
WHEN CATCH IS FILLED WITH WATER
ELBOW RESTRICTOR,
SEE DETAIL AND NOTE 10
PIPE SUPPORTS, SEE NOTE 6
A
ELEVATION PER PLANS
SEE NOTE 9 (TYP.)
12" SECTION OF PIPE ATTACHED BY
GASKETED BAND TO ALLOW REMOVAL
FLOW CONTROL STRUCTURE -
RESTRICTOR TEE
STD. PLAN - 237.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
1.OUTLET CAPACITY: 100 YEAR DEVELOPED PEAK FLOW.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR
ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH
TREATMENTS 1, 2, OR 5.
3.CATCH BASIN: TYPE 2 MINIMUM 72" DIAMETER TO BE CONSTRUCTED IN
ACCORDANCE WITH STD. PLAN 201.00 UNLESS OTHERWISE SPECIFIED.
4.ORIFICES: SIZED AND LOCATED AS REQUIRED WITH LOWEST ORIFICE A
MINIMUM OF 2' FROM BASE.
5.BAFFLE WALL SHALL HAVE #4 BAR AS 12" SPACING EACH WAY.
6.PRECAST BAFFLE WALL SHALL BE KEYED AND GROUTED IN PLACE.
7.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR
(KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED
EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND
COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
NOTES:
DESIGN WS
FLOW
MAX. WATER SURFACE (WS)
OVERFLOW CONDITIONS
12" MIN.
16" MAX.
12" MIN. UNDER
PAVEMENT
6"
FRAME ELEVATION
PER PLANS
FRAME AND ROUND SOLID COVER MARKED "DRAIN" WITH
LOCKING BOLTS PER STD. PLANS 204.40 AND 204.50
ELBOW RESTRICTORS,
SEE DETAIL
2' MIN.
2' MIN.
SECTION A SECTION B
2' MIN.
6" MIN.
ATTACH SHEAR GATE CONTROL ROD TO SUPPORT
BRACKET ON INSIDE OF ACCESS OPENING
SHEAR GATE WITH CONTROL ROD FOR
DRAIN PER STD. PLAN 237.30
ORIFICE PLATE 10 GAUGE MIN.
NON-GALVANIZED CORROSION RESISTANT
MATERIAL WITH ORIFICE DIA 1" MINIMUM
LESS THAN DIA OF CONCRETE HOLE
HANDHOLDS, STEPS,
OR LADDER
REMOVABLE
WATERTIGHT
COUPLING
GROUTED
PLATE WELDED TO ELBOW
WITH ORIFICE AS SPECIFIED
6" MIN.
6" MAX.
PLAN
ISOMETRIC
ELBOW RESTRICTOR DETAIL
A BSEE NOTE 7 (TYP.)
FLOW CONTROL STRUCTURE -
CONTROL BAFFLE
STD. PLAN - 237.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
DESIGN WS
1.OUTLET CAPACITY: 100 YEAR DEVELOPED PEAK FLOW.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL
OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
3.CATCH BASIN: TYPE 2 MINIMUM 72" DIAMETER TO BE CONSTRUCTED IN ACCORDANCE WITH
STD. PLAN 201.00 UNLESS OTHERWISE SPECIFIED.
4.BAFFLE WALL SHALL HAVE #4 BAR AT 12" SPACING EACH WAY.
5.PRECAST BAFFLE WALL SHALL BE KEYED AND GROUTED IN PLACE.
6.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH
CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING
PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
NOTES:
FRAME AND ROUND SOLID COVER
MARKED "DRAIN" WITH LOCKING BOLTS
PER STD. PLANS 204.40 AND 204.50
6" MIN.W
WEIR SHAPE AS NEEDED
FOR PERFORMANCE
DESIGN WATER SURFACE (WS)
SHEAR GATE WITH
CONTROL ROD FOR DRAIN
PER STD. PLAN 237.30
I.E. WEIR, INLET PIPE,
AND DRAIN = CROWN
OUTLET PIPE
FLOW
OUTLET PIPE
FRAME ELEVATION
PER PLANS12" MIN. UNDER
PAVEMENT
2' MIN.
2' MIN.
SECTION A SECTION B
ISOMETRIC PLAN
W
LOCATE ADDITIONAL
LADDER RUNGS (IN
SETS) TO ALLOW
ACCESS TO TANKS OR
VAULTS WHEN SUMP IS
FILLED WITH WATER
SHEAR GATE. LOCATE HORIZONTAL
FOR CLEARANCE WITH LADDER.
ATTACH ROD TO SUPPORT BRACKET
ON INSIDE OF ACCESS OPENING
HANDHOLDS, STEPS
OR LADDER (2 PLACES)
A BSEE NOTE 6 (TYP.)
6" MIN., SEE NOTES 4 AND 5
FLOW CONTROL STRUCTURE -
CONTROL WEIR
STD. PLAN - 237.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
LEVEL LINE SEE NOTE 5
1.SHEAR GATE SHALL BE ALUMINUM ALLOY PER ASTM B-26-ZG-32a OR CAST IRON ASTM A48 CLASS 30B AS REQUIRED.
2.GATE SHALL BE 8 INCH DIA. UNLESS OTHERWISE SPECIFIED.
3.GATE SHALL BE JOINED TO TEE SECTION BY BOLTING (THROUGH FLANGE), WELDING, OR OTHER SECURE MEANS.
4.LIFT ROD: AS SPECIFIED BY MFR. WITH HANDLE EXTENDING TO WITHIN ONE FOOT OF COVER AND ADJUSTABLE HOOK LOCK FASTENED TO FRAME OR UPPER
HANDHOLD.
5.GATE SHALL NOT OPEN BEYOND THE CLEAR OPENING BY LIMITED HINGE MOVEMENT, STOP TAB, OR SOME OTHER DEVICE.
6.NEOPRENE RUBBER GASKET REQUIRED BETWEEN RISER MOUNTING FLANGE AND GATE FLANGE.
7.MATING SURFACES OF LID AND BODY TO BE MACHINED FOR PROPER FIT.
8.FLANGE MOUNTING BOLTS SHALL BE 3/8" DIA. STAINLESS STEEL.
9.ALTERNATE CLEANOUT/SHEAR GATES TO THE DESIGN SHOWN ARE ACCEPTABLE, PROVIDED THEY MEET THE MATERIAL SPECIFICATIONS ABOVE AND HAVE
A SIX BOLT, 10 3/8" BOLT CIRCLE FOR BOLTING TO THE FLANGE CONNECTION.
LIFT HANDLE
FRONT SIDE MAXIMUM OPENING OF GATE
NOTES:
(6) EVENLY SPACED HOLES ON 10 3/8" BOLT
CIRCLE FOR BOLTING TO FLANGE CONNECTION
HANDLE WITH LOCK PIN
ADJUSTABLE LOCK HOOK WITH LOCK SCREW
1" ROD OR TUBING, VARIABLE LENGTH
LIFT HANDLE SHALL BE ATTACHED PER
MANUFACTURER'S RECOMMENDATIONSLEVEL LINETEE SECTION SHEAR GATE
STD. PLAN - 237.30
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SECTION A
PLAN
INFLOW PIPE
INFILTRATION POND
SETTLING POND
IF REQUIRED
ACCESS ROAD
OUTFLOW/OVERFLOW
STRUCTURE
EMERGENCY
OVERFLOW
SPILLWAY
5' MIN.
EXISTING GROUND
H
12'-15' IF H>6'
6' IF H<6'
(TYP.)
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND
APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
3.ALL FACILITIES SHALL HAVE FENCES. FENCE SHALL BE PROVIDED AROUND FACILITY ALLOWING PROPER MAINTENANCE PER STD. PLAN 234.40.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
TRACT/EASEMENT
LINES AS REQUIRED
CONNECTING SPILLWAY A3H:1V (TYP.)
KEY REQUIRED FOR
BERM HEIGHT>4'
TYPICAL INFILTRATION POND
STD. PLAN - 238.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLAN
INLET PIPE
(FLOW THROUGH)
OUTLET PIPE
OPTIONAL PARALLEL TANK
ACCESS RISERS,
SEE NOTE 6
ACCESS RISERS PER
STD. PLAN 235.10
ACCESS MANHOLE WITH 24" BOLT LOCKING RING
AND COVER PER STD. PLANS 204.40 AND 204.50
CLEAN DRAIN ROCK (1-1/2" - 3") TO TOP OF TANK,
2' MIN., 5' MAX. BEYOND EDGES, SEE NOTE 4
SETTLING VAULT OR TYPE 2
CATCH BASIN (CB) IF REQUIRED
SECTION A
INFILTRATION TANK
(SIZE AS REQUIRED)
1" HOLES AS
REQUIRED,
SEE NOTE 10 CLEAN DRAIN ROCK (1-1/2" - 3") TO TOP
OF TANK, 2' MIN., 5' MAX. BEYOND EDGES,
1' MIN. BELOW BOTTOM, SEE NOTE 4
TYPE 2 CB OR SETTLING
VAULT IF REQUIRED
2" MIN. DIA AIR VENT PIPE WELDED TO TANK
(REQUIRED IF NO ACCESS RISER ON TANK)
OVERFLOW RISER FOR
INFILTRATION ONLY. FOR
DETENTION/RETENTION SEE
STD. PLAN 235.00
OVERFLOW STRUCTURE,
54" MIN. DIA TYPE 2 CB
GEOTEXTILE (TOP ONLY), SEE NOTE 4
2'
MAX.
50'
MAX.100' MAX.50'
MAX.
2' MIN.4'
MIN.
36" MIN. DIA (TYP.)
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.MINIMUM TANK DIAMETER IS 36 INCHES.
3.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
4.GEOTEXTILE FOR UNDERGROUND DRAINAGE, CLASS A, TO BE PLACED OVER CLEAN DRAIN ROCK, PER WSDOT STANDARD SPECIFICATIONS SECTION 9-33.2(1).
5.THE PROPOSED BOTTOM SHALL BE AT LEAST 3 FEET ABOVE THE SEASONAL HIGH WATER LEVEL AND HAVE AT LEAST 3 FEET OF PERMEABLE SOIL BENEATH THE
BOTTOM.
6.ACCESS RISERS REQUIRED WITHIN 50 FEET FROM ANY LOCATION IN THE INFILTRATION TANK AND WITHIN 5 FEET OF EACH TERMINAL END. ANY LOCATION WITHIN THE
INFILTRATION TANK SHALL HAVE A DIRECT LINE OF SIGHT FROM AN ACCESS POINT, UNOBSTRUCTED BY ANY RESTRICTIONS SUCH AS A WALL OR BAFFLE.
7.H-20 LIVE LOADS MUST BE ACCOMMODATED FOR TANKS LYING UNDER PARKING AREAS, ROADWAYS, AND ACCESS ROADS.
8.PIPE MATERIAL, JOINTS, AND PROTECTIVE TREATMENT FOR TANKS SHALL BE IN ACCORDANCE WITH SECTIONS 7-04 AND 9-05 OF THE WSDOT/APWA STANDARD
SPECIFICATIONS.
9.ALL TANK ACCESS OPENINGS MUST BE READILY ACCESSIBLE BY MAINTENANCE VEHICLES.
10.THE NUMBER AND SPACING OF THE HOLES SHOULD BE SUFFICIENT TO ALLOW COMPLETE UTILIZATION OF THE AVAILABLE INFILTRATION CAPACITY OF THE SOILS WITH
A SAFETY FACTOR OF 2.0 WITHOUT JEOPARDIZING THE STRUCTURAL INTEGRITY OF THE TANK.
11.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING
TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
12.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
A
2' MIN.
SEE NOTE 11 (TYP.)
6" MIN.
SEE NOTE 11 (TYP.)
FINISH GRADE
6"
2' MIN.
36" MIN.
36" MIN.
"FLOW-THROUGH" SYSTEM SHOWN SOLID.
DESIGNS FOR "FLOW BACKUP" SYSTEM AND
PARALLEL TANKS SHOWN DASHED
CLOSED BOTTOM
SAME SIZE AS INLET PIPE, 12"
MIN. DIA.
5' MAX.
TERMINAL END
TYPICAL INFILTRATION TANK
STD. PLAN - 238.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
PLAN
INFLOW
OIL/WATER
SEPARATOR
CHAMBER
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY
DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.GRAVITY DRAIN SHALL BE AT LEAST 8 INCH MINIMUM DIAMETER AND SHALL BE CONTROLLED BY
A VALVE . USE OF A SHEAR GATE IS ALLOWED ONLY AT THE INLET OF A PIPE LOCATED WITHIN
AN APPROVED STRUCTURE.
3.ACCESS TO EACH COMPARTMENT IS REQUIRED, ON EACH END, AND EVERY 50 FEET MINIMUM.
4.VAULTS PROVIDING MANHOLE ACCESS AT 12 FOOT SPACING NEED NOT PROVIDE CORNER
VENTILATION PIPES. VENTILATION PIPES SHALL BE CAPPED OR OTHERWISE COVERED, BUT
DESIGNED SO THAT MAINTENANCE PERSONNEL CAN REMOVE FOR VENTILATION.
5.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH
CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING PIPE,
USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
6.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
HIGH FLOW BYPASS
INLET PIPE (8" MIN.)
ACCESS COVER (TYP.) WITH LADDER ACCESS TO VAULT. IF > 1,250SF,
PROVIDE 5'x10' REMOVABLE PANEL OVER INLET/OUTLET PIPE
OUTLET PIPE (8" MIN.)
SHUT OFF VALVE WITH RISER & VALVE BOX
20' MAX.
(RECOMMENDED)
6' MIN.
W
5' MAX.
TEE
FOREBAY
FLOW SPREADING BAFFLE
(RECOMMENDED)
SLUDGE RETAINING BAFFLE
OIL RETAINING BAFFLE
EXISTING GRADE
TEE (8" MIN.)
GRAVITY
DRAIN
REMOVABLE TEE
(RECOMMENDED)
H=7' MIN.
20'
MAX.
2'
MIN.
D
3' MIN.,
8' MAX.12"
MIN.
2'
MIN.
50% D
MIN.
12"
MIN.12"
MIN.
6"
MIN.
12" MIN.8' MIN.L/3 - L/2
(APPROX)
L = 5W
SECTION
SEE NOTE 5 (TYP.)
SEE NOTE 5 (TYP.)
ACCESS MANHOLE WITH 24" BOLT LOCKING RING
AND COVER PER STD. PLANS 204.40 AND 204.50
2' MIN.
COVER
SEE NOTE 5 (TYP.)
SEE NOTE 5
(TYP.)
LADDER (TYP.)12" MIN. VENTILATION PIPES AT CORNERS (TYP.)
BAFFLE OIL/WATER SEPARATOR
STD. PLAN - 240.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
PLAN
WATER QUALITY
WATER SURFACE
SUBMERGED
INLET PIPE
AFTERBAYFOREBAY
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC
SITE CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.GRAVITY DRAIN SHALL BE AT LEAST 8 INCH MINIMUM DIAMETER AND SHALL BE CONTROLLED BY A VALVE . USE OF A
SHEAR GATE IS ALLOWED ONLY AT THE INLET OF A PIPE LOCATED WITHIN AN APPROVED STRUCTURE.
3.ACCESS TO EACH COMPARTMENT IS REQUIRED, ON EACH END, AND EVERY 50 FEET MINIMUM.
4.VAULTS PROVIDING MANHOLE ACCESS AT 12 FOOT SPACING NEED NOT PROVIDE CORNER VENTILATION PIPES.
VENTILATION PIPES SHALL BE CAPPED OR OTHERWISE COVERED, BUT DESIGNED SO THAT MAINTENANCE PERSONNEL
CAN REMOVE FOR VENTILATION.
5.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE
ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE
SAME MATERIAL AS THE CONNECTING PIPE.
6.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
20' MAX.
(RECOMMENDED)
5' MAX.
HIGH FLOW
BYPASS
LADDER (TYP.)
ACCESS COVER
OVER OUTLET
ACCESS COVER
OVER INLET
12" MIN. VENTILATION PIPES AT CORNERS (TYP.)
COALESCING PLATE RACK
ACCESS DOOR ALLOWING REMOVAL OF
PLATE PACK OR PROVIDE FULL LENGTH
REMOVABLE COVERS ACROSS ENTIRE CELL
SHUT OFF VALVE W / RISER
AND VALVE BOX
SECTION
20' MAX.
7'
MIN.
L/3 MIN.
(L/2 RECOMMENDED)
L
8' MIN.
(L/4 RECOMMENDED)
D
18"
MIN.
12" MIN.
12" MIN.
6" MIN.
12" MIN.
6" MIN.
VARIES (CAN BE CONSTRUCTED
ON GRADE WITHOUT RISERS)
8" TEE
OIL RETAINING
BAFFLE (50% D MIN.)
COALESCING
PLATE RACK
GRAVITY DRAIN
INLET WEIR-SOLIDS
RETAINING BAFFLE
OR WINDOW WALL
INLET PIPE
(8" MIN.)SEE NOTE 5 (TYP.)
2' MIN. COVER
OUTLET PIPE (8" MIN.)
SEE NOTE 5
(TYP.)
SEE NOTE 5 (TYP.)
SEE NOTE 5 (TYP.)
COALESCING PLATE OIL / WATER
SEPARATOR
STD. PLAN - 240.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLAN
INFLOW
WATER QUALITY
DESIGN WATER
SURFACE ELEVATION
TO WATER QUALITY FACILITY
NOTES:
INFLOW TO WATER QUALITY FACILITY
TO BYPASS CONVEYANCE
SYSTEM OR DETENTION PONDTYPE 2 CATCH BASIN
REINFORCED BAFFLE WALL GROUTED
TO M.H. STRUCTURE (BOTH ENDS)
SECTION A
ROUND SOLID COVER MARKED
"DRAIN" WITH LOCKING BOLTS
PER STD. PLANS 204.40 AND 204.50
HANDHOLD AND STEPS OR LADDER
ACCESS (PROVIDE LADDERS TO BOTH
SIDES OF WALL IF WEIR >36" HIGH)
4" MIN. THICK REINFORCED
CONCRETE BAFFLE WALL OR
OTHER SUITABLE MATERIAL
BYPASS PIPE
7' MIN.
4' MIN. OR PROVIDE SEPARATE ACCESS
TO EITHER SIDE OF BAFFLE WALL
2' MIN.
1.THE WATER QUALITY DISCHARGE PIPE MAY REQUIRE AN ORIFICE PLATE TO 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.
A
FLOW SPLITTER - OPTION A
STD. PLAN - 241.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
PLAN
NOTES:
TO WATER QUALITY FACILITY
SECTION A
ROUND SOLID COVER MARKED "DRAIN" WITH
LOCKING BOLTS PER STD. PLANS 204.40 AND 204.50
1.DIAMETER (D) OF STANDPIPE SHOULD BE LARGE ENOUGH TO MINIMIZE HEAD
ABOVE WATER QUALITY DESIGN WATER SURFACE AND TO KEEP WATER QUALITY
DESIGN FLOWS FROM INCREASING MORE THAN 10% DURING 100-YEAR FLOWS.
INFLOW
TO BYPASS CONVEYANCE
SYSTEM OR DETENTION POND
TYPE 2 CATCH BASIN, NO
BASE CHANNEL REQUIRED
2D
DIA OF STANDPIPE, SEE NOTE 1 (2 x
DIA OF OUTLET PIPE RECOMMENDED
AS STARTING POINT)
INFLOW
TO WATER QUALITY FACILITY
TOP OF RISER AT DESIGN
WATER SURFACE ELEVATION
"TEE" SECTION WITH CLEAN OUT (OR
REMOVABLE BEND-DOWN ELBOW)
ORIFICE SIZED TO PASS
WATER QUALITY DESIGN FLOW
LADDER (TYP.)
TOP OF PIPE AT WATER QUALITY
DESIGN WATER SURFACE ELEVATION
AND HEAD LOSSES IN OUTLET PIPE
SOLID BOTTOM (PROVIDE
MAINTENANCE ACCESS)
7'
MIN.
2'
MIN.
6"
6"
BAFFLE TO CONTROL FLOATABLES
BAFFLE TO CONTROL FLOATABLES OR
PROVIDE SPILL CONTROL UPSTREAM
A
D
FLOW SPLITTER - OPTION B
STD. PLAN - 241.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
ALTERNATIVE DESIGN
CATCH BASIN RECOMMENDED FOR
HIGHER FLOW SITUATIONS (GENERALLY
FOR INFLOW VELOCITIES OF 5 FPS OR
GREATER FOR 100 YEAR STORM).
*SAND FILTER MAY USE
OTHER SPREADING OPTIONS.
EXAMPLE OF ANCHORED PLATE
USED WITH A SAND FILTER*
(MAY ALSO BE USED WITH OTHER
WATER QUALITY FACILITIES).
PLAN
SECTION A
SAND BED
NOTES:
1.FLOW SPREADER PLATES MAY BE MADE OF EITHER METAL, FIBERGLASS
REINFORCED PLASTIC, RECYCLED PLASTIC, OR OTHER DURABLE MATERIAL.
WOOD IS NOT ALLOWED.
2.ANCHOR POST SHALL BE 4-INCH SQUARE CONCRETE, TUBULAR STAINLESS
STEEL, OR OTHER MATERIAL RESISTANT TO DECAY. WOOD IS NOT ALLOWED.
3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
INLET PIPE
V-NOTCHED OR LEVEL
PLATE SPREADER
EXTEND INTO SLOPE TO PROTECT
FROM THE 100-YEAR FLOW OR
THE HIGHEST FLOW ENTERING
WATER QUALITY FACILITY
RIPRAP AS SHOWN ON PLANS (TYP.)
POND SIDE SLOPES (TYP.)
SAND LAYER
GRAVEL LAYER
EXISTING GRADE
2" MIN.
8"
MIN.
2'
MIN.2' MIN. EMBEDDED
INTO EXISTING GROUND
INLET PIPE2" MIN,
EDGE OF SAND
ANCHOR POSTS SPACED 6' O.C.
OR AT EACH END IF WIDTH < 6'A2" MIN. THICK LEVEL SPREADER PLATE BOLTED TO ANCHOR POST
RIPRAP AS SHOWN ON PLANS (TYP.)
FLOW SPREADER - OPTION A
ANCHORED PLATE
STD. PLAN - 242.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.EXTEND SIDES INTO SLOPE. HEIGHT OF SIDE WALL AND WING WALLS MUST BE SUFFICIENT TO
HANDLE THE 100-YEAR FLOW OR THE HIGHEST FLOW ENTERING THE FACILITY.
2.CONCRETE FOR SUMP BOX MAY BE EITHER CAST-IN-PLACE OR PRE-CAST, BUT THE BOTTOM OF
THE SUMP SHALL BE REINFORCED WITH WIRE MESH FOR CAST-IN-PLACE SUMPS.
3.SUMP BOXES SHALL BE PLACED OVER BASES THAT CONSIST OF 4 INCHES OF CRUSHED ROCK,
5/8-INCH MINUS TO ENSURE THAT THE SUMP REMAINS LEVEL.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
EXAMPLE OF A CONCRETE SUMP FLOW
SPREADER USED WITH A BIOFILTRATION SWALE
(MAY BE USED WITH OTHER WATER QUALITY FACILITIES).
PLAN
SWALE BOTTOM
SIDE WITH WING WALLS
(TYP.), SEE NOTE 1
RIPRAP AS SHOWN ON PLANS (TYP.)
INLET PIPE
24" MIN.
8" MIN.
2" MIN. CLEARANCE
WING WALL OUTLINE
CONCRETE
SUMP (4" WALL
THICKNESS)
SECTION A
2" MIN.
SECTION B
A
BCONCRETE SUMP
INLET PIPE
RIPRAP AS SHOWN ON PLANS (TYP.)
RIPRAP AS SHOWN ON PLANS (TYP.)
FLOW SPREADER - OPTION B
CONCRETE SUMP BOX
STD. PLAN - 242.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
OUTLET
PLAN TYPICAL SWALE SECTION
UNDERDRAIN SECTION
NOTES:
1.LONGITUDINAL SLOPE, 1% TO 6%. IF THE LONGITUDINAL SLOPE IS LESS THAN 1.5%, UNDERDRAINS MUST BE PROVIDED OR THE SWALE MUST BE DESIGNED AS A
WET BIOSWALE. IF THE LONGITUDINAL SLOPE EXCEEDS 6 PERCENT, CHECK DAMS WITH VERTICAL DROPS OF 12 INCHES OR LESS SHALL BE PROVIDED.
2.UNDERDRAIN MUST INFILTRATE OR DRAIN FREELY TO AN ACCEPTABLE DISCHARGE POINT. UNDERDRAIN TO BE PVC PERFORATED PIPE, SDR 35 PER ASTM D3034.
3.THE DIVIDER SHALL EXTEND FROM THE FLOW SPREADER AT THE INLET FOR AT LEAST THREE-QUARTERS OF THE SWALE LENGTH. THE DIVIDER SHALL BE
CONSTRUCTED OF A FIRM MATERIAL THAT WILL RESIST WEATHERING AND NOT ERODE, SUCH AS CONCRETE, COMPACTED SOIL SEEDED WITH GRASS, UNTREATED
HEARTWOOD CEDAR, OR UNTREATED WHOLE DE-BARKED CEDAR LOGS.
4.ACCESS ROAD SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
5.IF NATIVE SOIL HAS LESS THAN 1% ORGANIC CONTENT, 2" COMPOST PER STD. PLAN 262.60 SHALL BE TILLED INTO 6" NATIVE SOIL
6.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
FLOW SPREADER PER STD.
PLAN 242.00 OR 242.10
MID SWALE FLOW
SPREADER
(RECOMMENDED) PER STD.
PLAN 242.00 OR 242.10
BIOFILTRATION SWALE BOTTOM
(MIN SWALE LENGTH = 100 FT)
ACCESS ROAD, SEE NOTE 4 AND TABLE 6.3.1.B
BOTTOM WIDTH (B)
2' MIN.
16' + DIVIDER WIDTH MAX.
WATER QUALITY DESIGN DEPTH (Y), 4" MAX.
(2" FOR FREQUENTLY MOWED AREAS)
COMPOST AMENDED SOIL,
SEE NOTE 5
SWALE DIVIDER FOR WIDTH > 10',
HEIGHT = Y+1", SEE NOTE 3
SWALE
BOTTOM
FILTER FABRIC 6" MIN. DIA. PERFORATED UNDERDRAIN PIPE
CENTERED BENEATH SWALE, SEE NOTE 2
5/8" CLEAN DRAIN ROCK OR GRAVEL
BACKFILL FOR DRAINS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(4)
FILTER FABRIC, WRAP TOP,
SIDES, AND BOTTOM PER WSDOT
STD. SPEC. 9-33.2(1)
UNDISTURBED NATIVE SOIL
6" MIN. OVER PIPE
UNDERDRAIN SECTION
FOR SLOPES <1.5%
MIN. 6" DIA. PERFORATED
UNDERDRAIN PIPE
CENTERED BENEATH
SWALE, SEE NOTE 2
UNDISTURBED NATIVE SOIL
3
1
3
1
5/8" CLEAN DRAIN ROCK OR GRAVEL
BACKFILL FOR DRAINS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(4)
COMPOST AMENDED SOIL,
SEE NOTE 5
COMPOST AMENDED SOIL,
SEE NOTE 5
TABLE 6.3.1.B - REQUIREMENTS FOR BIOSWALE ACCESS ROAD
SWALE BOTTOM AREA¹: L x W (SF)ACCESS ROAD LENGTH²
200-1000 1/2 SWALE LENGTH L
1000-1600 2/3 SWALE LENGTH L
OVER 1600 ENTIRE SWALE LENGTH L
¹ THE SWALE AREA USED FOR COMPUTING ACCESS ROAD LENGTH MAY BE THE BOTTOM AREA
² CITY STREETS AND PAVED PARKING AREAS ADJACENT TO THE TOP OF SLOPE MAY BE COUNTED AS ACCESS
BIOFILTRATION SWALE SCHEMATIC,
CROSS SECTION, AND UNDERDRAIN
DETAIL
STD. PLAN - 243.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
PLANTINGS REQUIRED ON CUT
SLOPES FOR SENSITIVE LAKE
PROTECTION FACILITIES
ACCESS ROAD TO INLET STRUCTURE
ACCESS ROAD TO
OUTLET STRUCTURE
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.SEE STANDARD PLAN 249.10 FOR TYPICAL WETPOND CROSS SECTIONS.
3.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
4.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
5.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY.
6.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1
OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS OF THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE
LANDSCAPED IN ACCORDANCE WITH LANDSCAPING REQUIREMENTS INCLUDED IN SECTION 6.4.1.2 OF THE RENTON SWDM.
7.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STD. PLAN 234.40.
8.WETPONDS WITH WETPOOL VOLUMES LESS THAN OR EQUAL TO 4,000 CUBIC FEET MAY BE SINGLE-CELLED (I.E. NO BAFFLE OR BERM IS REQUIRED).
9.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN
CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
10.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
INLET PIPE & CATCH BASIN PER
DETENTION FACILITY REQUIREMENTS
TOP OF BERM OR BAFFLE TO BE LEVEL
AND AT OR 1' BELOW WATER QUALITY
(WQ) DESIGN WATER SURFACE (WS).
EXTEND BERM OR BAFFLE ACROSS
ENTIRE WETPOOL WIDTH
FIRST WETPOOL CELL
25% TO 35% OF WETPOOL VOLUME,
EXCLUDING ACCESS RAMP
BERM, TOP WIDTH 5' MIN. IF EARTHEN
SECOND WETPOOL CELL
WQ DESIGN WS
OVERFLOW WS
EMERGENCY OVERFLOW WS
EMERGENCY SPILLWAY PER
DETENTION FACILITY REQUIREMENTS
MANHOLE OR TYPE 2 CATCH BASIN AND
OUTLET PIPE SIZED TO PASS PEAK FLOW
PER CONVEYANCE REQUIREMENTS
OUTLET EROSION CONTROL &
ENERGY DISSIPATION PER
DETENTION FACILITY REQUIREMENTS
ACCESS RAMP TO BOTTOM OF FIRST WETPOOL CELL
QUARRY SPALL PAD
3H:1V MAX.
SEE NOTE 4
3H:1V MAX.
SEE NOTE 4
OUTLET PIPE
SEE NOTE 9 (TYP.)
TYPICAL WETPOND
STD. PLAN - 249.00A249.10PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)B249.10DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SCALE:
CROSS-SECTION A
249.00NTS
XXEMERGENCY OVERFLOW WS
OVERFLOW WS
WQ DESIGN WS
INLET
EMERGENCY OVERFLOW WS
OVERFLOW WS
WQ DESIGN WS
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS
AND APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
3.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
4.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY.
5.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED
MIXTURE PER SECTION 5.1.1.1 OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS OF
THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE LANDSCAPED IN ACCORDANCE WITH LANDSCAPING REQUIREMENTS INCLUDED
IN SECTION 6.4.1.2 OF THE RENTON SWDM.
6.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STANDARD PLAN 234.40.
7.WETPONDS WITH WETPOOL VOLUMES LESS THAN OR EQUAL TO 4,000 CUBIC FEET MAY BE SINGLE-CELLED (I.E. NO BAFFLE OR BERM IS
REQUIRED).
8.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED
EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
SLOPE VEGETATION PER
DETENTION FACILITY
REQUIREMENTS
EMERGENT VEGETATION
REQUIRED FOR WETPOOL
DEPTHS 3' OR LESS
KEYED BERM
IF TOP OF BERM IS SUBMERGED 1' BELOW WQ
DESIGN WS, BERM SIDE SLOPES MAY BE 2H:1V,
OTHERWISE SIDE SLOPES MUST BE 3H:1V
INLET EROSION CONTROL/SLOPE
PROTECTION PER DETENTION
FACILITY REQUIREMENTS
2' MIN.
SEDIMENT STORAGE
DEPTH, 12" MIN.
FIRST CELL DEPTH
4' MIN. TO 8' MAX.
WETPOOL FLOW LENGTH = 3 MIN. x WIDTH
WETPOOL DEPTH 8' MAX. RECIRCULATION
RECOMMENDED FOR DEPTH > 6'
SEE STD. PLAN 234.40 FOR
FENCE REQUIREMENTS
ACCESS ROAD
CAPACITY OF OUTLET SYSTEM
SIZED TO PASS PEAK FLOW FOR
CONVEYANCE REQUIREMENTS
EXTERIOR BERMS DESIGNED PER
DAM SAFETY REQUIREMENTS
IF APPLICABLE
MANHOLE OR TYPE 2
CATCH BASIN
VALVE
(MAY BE LOCATED INSIDE MH
OR OUTSIDE WITH APPROVED
OPERATIONAL ACCESS)
GRAVITY DRAIN
(IF GRADE ALLOWS)
8" MIN. DIAMETER
INVERT 6" MIN. BELOW TOP OF
INTERNAL BERM. LOWER
PLACEMENT IS DESIRABLE
12" MIN
18" MIN.
SCALE:
CROSS-SECTION B
249.00NTS
6" SEDIMENT STORAGE
COMPACT TO 95% OF MAXIMUM
DRY DENSITY
OUTLET PIPE INVERT AT
WETPOOL WS ELEVATION
SEE NOTE 8 (TYP.)
TOP OF BERM OR BAFFLE TO BE LEVEL
AND AT OR 1' BELOW WATER QUALITY
(WQ) DESIGN WATER SURFACE (WS)
INLET SUBMERGED 12" MIN.
TYPICAL WETPOND SECTIONS
STD. PLAN - 249.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
3
1
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SECTION B
SECTION A
PLAN VIEW
ACCESS COVER OR DOORS REQUIRED.
WQ DESIGN WS
INLET
FIRST CELL SIZED FOR
25% TO 35% OF
WETPOOL VOLUME WATER QUALITY (WQ) DESIGN
WATER SURFACE (WS)
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND
APPLICABLE DESIGN CRITERIA.
2.THE VAULT SHALL BE SEPARATED INTO TWO CELLS BY A WALL OR A REMOVABLE BAFFLE. IF A WALL OR NON REMOVABLE BAFFLE IS USED, A 5-FOOT x 10-FOOT
REMOVABLE MAINTENANCE ACCESS MUST BE PROVIDED FOR BOTH CELLS.
3.FOR VAULTS UNDER ROADWAYS, THE REMOVABLE PANEL MUST BE LOCATED OUTSIDE THE TRAVEL LANES. ALTERNATIVELY, MULTIPLE STANDARD LOCKING
MANHOLE COVERS MAY BE PROVIDED. SPACING OF MANHOLE COVERS SHALL BE 12 FEET, MEASURED ON CENTER, TO FACILITATE REMOVAL OF SEDIMENT.
LADDERS AND HAND-HOLDS NEED ONLY BE PROVIDED AT THE OUTLET PIPE AND INLET PIPE.
4.MINIMUM DIAMETER FOR ALL ACCESS OPENINGS (RISERS), EXCEPT THOSE COVERED BY REMOVABLE PANELS, IS 36 INCHES.
5.REMOVABLE PANEL SHALL BE AT GRADE, HAVE STAINLESS STEEL LIFTING EYES, AND WEIGH NO MORE THAN 5 TONS PER PANEL.
6.VAULTS PROVIDING MANHOLE ACCESS AT 12 FOOT SPACING NEED NOT PROVIDE CORNER VENTILATION PIPES. VENTILATION PIPES SHALL BE CAPPED OR
OTHERWISE COVERED, BUT DESIGNED SO THAT MAINTENANCE PERSONNEL CAN REMOVE FOR VENTILATION.
7.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN
CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
8.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
5'x10' GRATE, GRATED ACCESS DOOR, OR LOCKING
ACCESS PANEL OVER SECOND CELL. FOR VAULTS
WHERE SURFACE AREA OF SECOND CELL IS
GREATER THAN 1,250 SQUARE FEET, 4% OF THE
TOTAL SURFACE AREA MUST BE GRATED AND A 5'x10'
REMOVABLE LOCKING PANEL SHALL BE PROVIDED
LADDER
"V" SHAPED BOTTOM
REMOVABLE BAFFLE OR WALL,
SEE NOTE 2
WETPOOL
WIDTH
WETPOOL LENGTH
12" MIN.
12" MIN.
REMOVABLE
BAFFLE
LADDER
12"
2' MIN.
WETPOOL
DEPTH
8' MAX.
SIZE TO CONVEY 100-YEAR
DESIGN FLOW WITHOUT
OVERTOPPING, 6" MIN.
4" MIN.
16" MAX.
FRAME AND SOLID COVER
MARKED "DRAIN" WITH
LOCKING BOLTS PER STD.
PLANS 204.40 AND 204.50
OUTLET WITH CAPACITY TO
CONVEY 100-YEAR DESIGN
FLOW WITHOUT OVERTOPPING
GRAVITY DRAIN (IF GRADE ALLOWS). PLACE
AS LOW AS GRADE ALLOWS BUT MUST BE 6"
MIN. ABOVE THE BASE ELEVATION OF VAULT
WALLS OR ABOVE SEDIMENT STORAGE AREA
3' MIN.
AVERAGE SEDIMENT STORAGE
12" MIN. (FIRST CELL)
BOTTOM SLOPE 0.5%-2%
TOWARD INLET END
BOTTOM SLOPE 0.5%-2% TOWARD OUTLET
END OF SECOND CELL (RECOMMENDED)
ACCESS DOORS OR REMOVABLE PANEL, SEE NOTE 5
AVERAGE 12" SEDIMENT
STORAGE (FIRST CELL)
4' MIN.
7' MIN.
NOTES:
A BINLET
OUTLET
8" MIN. GRAVITY DRAIN
SEE NOTE 7 (TYP.)
VALVE
SEE NOTE 7 (TYP.)
SHEAR GATE
12" MIN. VENTILATION PIPES AT
CORNERS (TYP.), SEE NOTE 6
18" MAX. FROM CENTER OF
FRAME TO STRUCTURE
WALL FOR STEP ACCESS
6" MAX. FROM EDGE OF
OPENING TO STRUCTURE
WALL FOR STEP ACCESS
12" MIN.
5% MIN. (TY
P
.
)
WETVAULT
STD. PLAN - 249.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
PLANT WITH WETLAND PLANTS PER
TABLE 6.4.1.A OF THE CITY OF RENTON
SURFACE WATER DESIGN MANUAL
ACCESS ROAD
ACCESS ROAD
SPILLWAY
WETLAND CELLFIRST CELL (FOREBAY)
INFLOW
INLET WITH SPILL CONTROL
WQ DESIGN WS
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND
APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
3.ALL FACILITIES SHALL BE FENCED. FENCE SHALL BE PROVIDED AROUND FACILITY ALLOWING PROPER MAINTENANCE PER STANDARD PLANS UNLESS
OTHERWISE SPECIFIED. FENCE TO BE PROVIDED IN ACCORDANCE WITH STD. PLAN 234.40.
4.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN
CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
PLAN VIEW
INLET SUBMERGED 12" MIN.
INLET EROSION CONTROL/SLOPE
PROTECTION PER DETENTION
FACILITY REQUIREMENTS
MANHOLE OR TYPE 2 CATCH BASIN
IF REQUIRED, PLACE LINER IN
SECOND CELL TO HOLD WATER
2' MIN.
FIRST CELL DEPTH
4' MIN. TO 8' MAX.
TOP OF BERM TO BE LEVEL AND AT
OR 1' BELOW WATER QUALITY (WQ)
DESIGN WATER SURFACE (WS)
SEDIMENT STORAGE
DEPTH = 12" MIN.
2.5' MAX.
SECTION VIEW
NOTES:
QUARRY SPALL PAD
SEE NOTE 4 (TYP.)
OUTLET PIPE SIZED TO PASS PEAK FLOW
FOR CONVEYANCE REQUIREMENTS
IF TOP OF BERM IS SUBMERGED 1' BELOW WQ
DESIGN WS, BERM SIDE SLOPES MAY BE 2H:1V,
OTHERWISE SIDE SLOPES MUST BE 3H:1V
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STORMWATER WETLAND OPTION A
STD. PLAN - 249.30
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
ACCESS ROAD TO INLET STRUCTURE
FIRST WETPOOL CELL
25% TO 35% OF WETPOOL
VOLUME, EXCLUDING
ACCESS RAMP
SECOND WETPOOL CELL
NOTES:
1.THIS DETAIL IS A SCHEMATIC
REPRESENTATION ONLY. ACTUAL
CONFIGURATION WILL VARY DEPENDING
ON SPECIFIC SITE CONSTRAINTS AND
APPLICABLE DESIGN CRITERIA.
2.SEE STANDARD PLAN 252.10 FOR TYPICAL
COMBINED DETENTION AND WETPOND
CROSS SECTIONS.
3.ACCESS ROAD AND RAMP SHALL MEET
REQUIREMENTS IN STD. PLAN 234.50.
4.SIDE SLOPES (INTERIOR AND EXTERIOR)
SHALL NOT BE STEEPER THAN THREE (3)
FEET HORIZONTAL TO ONE (1) FOOT
VERTICAL.
5.OPEN PONDS SHALL NOT BE LOCATED IN
DEDICATED PUBLIC RIGHT-OF-WAY OR
ZONE 1 OF THE APA.
6.EXPOSED EARTH ON THE POND BOTTOM
AND INTERIOR SIDE SLOPES SHALL BE
SODDED OR SEEDED WITH AN
APPROPRIATE SEED MIXTURE PER
SECTION 5.1.1.1 OF THE CITY OF RENTON
SURFACE WATER DESIGN MANUAL
(RENTON SWDM). ALL REMAINING AREAS
OF THE TRACT MUST EITHER BE PLANTED
WITH GRASS, OR BE LANDSCAPED IN
ACCORDANCE WITH LANDSCAPING
REQUIREMENTS INCLUDED IN SECTION
6.4.1.2 OF THE RENTON SWDM.
7.ALL FACILITIES SHALL BE FENCED. FENCE
SHALL BE PROVIDED IN ACCORDANCE
WITH STD. PLAN 234.40.
8.LANDSCAPING, TREES, AND POND
GEOMETRY STANDARDS ARE SPECIFIED
IN STD. PLAN 234.40.
9.COMBINED DETENTION AND WETPONDS
WITH WETPOOL VOLUMES LESS THAN OR
EQUAL TO 4,000 CUBIC FEET MAY BE
SINGLE-CELLED (I.E. NO BAFFLE OR BERM
IS REQUIRED).
10.WHEN CONNECTING TO A NEW PIPE, USE
A FLEXIBLE CONNECTOR (KOR-N-SEAL
BOOT WITH CORRUGATED PIPE ADAPTER
OR APPROVED EQUAL). WHEN
CONNECTING TO AN EXISTING PIPE, USE A
FABRICATED SAND COLLAR OF THE SAME
MATERIAL AS THE CONNECTING PIPE.
11.SEE CONSTRUCTION PLANS FOR SPECIFIC
PROJECT REQUIREMENTS.
INLET PIPE & CATCH BASIN PER
WETPOND FACILITY REQUIREMENTS
ACCESS RAMP TO BOTTOM
OF FIRST WETPOOL CELL
BERM TOP WIDTH 5'
MIN. (IF EARTHEN)
TOP OF BERM OR BAFFLE TO BE
LEVEL AND AT OR 1' BELOW
WATER QUALITY (WQ) DESIGN
WATER SURFACE (WS). EXTEND
BERM OR BAFFLE ACROSS
ENTIRE WETPOOL WIDTH
EMERGENCY OVERFLOW WS
OVERFLOW WS
DETENTION WS
WQ DESIGN WS
OUTLET FLOW CONTROL STRUCTURE PER STD.
PLANS 237.00-237.20 AND OUTLET PIPE SIZED
PER DETENTION FACILITY REQUIREMENTS OUTLET EROSION CONTROL
& ENERGY DISSIPATION
PER DETENTION FACILITY
REQUIREMENTS
TRACT LINES
AS REQUIRED
5'
SETBACK,
MIN.
WETPOOL
WIDTH
EMERGENCY
SPILLWAY
PLANTINGS REQUIRED ON
CUT SLOPES FOR
SENSITIVE LAKE
PROTECTION FACILITIES
QUARRY SPALL PAD
3H:1V MAX.
SEE NOTE 4
3H:1V MAX.
SEE NOTE 4
OUTLET PIPE
SEE NOTE 10 (TYP.)
COMBINED DETENTION AND
WETPOND
STD. PLAN - 252.00A252.10PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)B252.10DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SCALE:
CROSS-SECTION A
252.00NTS
XXEMERGENCY OVERFLOW WS
DETENTION OVERFLOW WS
DETENTION DESIGN WS
EMERGENCY OVERFLOW WS
DETENTION OVERFLOW WS
DETENTION DESIGN WS
WQ DESIGN WS
WQ DESIGN WS
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
3.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
4.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY OR ZONE 1 OF THE APA.
5.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1 OF THE
CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS OF THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE LANDSCAPED
IN ACCORDANCE WITH LANDSCAPING REQUIREMENTS INCLUDED IN SECTION 6.4.1.2 OF THE RENTON SWDM.
6.ALL FACILITIES SHALL BE FENCED IN ACCORDANCE WITH STD. PLAN 234.40.
7.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STD. PLAN 234.40.
8.COMBINED DETENTION AND WETPONDS WITH WETPOOL VOLUMES LESS THAN OR EQUAL TO 4,000 CUBIC FEET MAY BE SINGLE-CELLED (I.E. NO BAFFLE OR BERM IS
REQUIRED).
9.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO
AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
10.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
GRAVITY DRAIN
(IF GRADE ALLOWS)
8" MIN. DIAMETER
3
1
3
1
ACCESS ROAD
SLOPE VEGETATION PER DETENTION
FACILITY REQUIREMENTS
EMERGENT VEGETATION
REQUIRED FOR WETPOOL
DEPTHS 3' OR LESS.
TOP OF BERM OR BAFFLE TO BE LEVEL
AND AT OR 1' BELOW WATER QUALITY
(WQ) DESIGN WATER SURFACE (WS)
INLET EROSION CONTROL/SLOPE
PROTECTION PER DETENTION
FACILITY REQUIREMENTS
INLET SUBMERGED 12" MIN.
WETPOOL FLOW LENGTH = 3 x WIDTH MIN.
2' MIN.
FIRST CELL
DEPTH 4' MIN.
TO 8' MAX.
SEDIMENT STORAGE
DEPTH, 12" MIN.
KEYED BERM
WETPOOL DEPTH 8' MAX.
RECIRCULATION
RECOMMENDED
FOR DEPTH > 6'
DETENTION PER
DETENTION FACILITY
REQUIREMENTS
OUTLET PIPE INVERT OUT AT
WETPOOL WS ELEVATION
ACCESS ROAD
CAPACITY OF OUTLET SYSTEM
PER DETENTION FACILITY
REQUIREMENTS
EXTERIOR BERMS DESIGNED PER
DAM SAFETY REQUIREMENTS
IF APPLICABLE
OUTLET FLOW CONTROL
STRUCTURE PER STD.
PLANS 237.00-237.20
VALVE
INVERT 6" MIN. BELOW TOP OF
INTERNAL BERM. LOWER
PLACEMENT IS DESIRABLE
12"
18" MIN.
SCALE:
CROSS-SECTION B
252.00NTS
SEE STD. PLAN 234.40 FOR
FENCE REQUIREMENTS
6" SEDIMENT STORAGE
SEE NOTE 9 (TYP.)
COMPACT TO 95% OF MAXIMUM
DRY DENSITY
IF TOP OF BERM IS SUBMERGED 1' BELOW WQ
DESIGN WS, BERM SIDE SLOPES MAY BE 2H:1V,
OTHERWISE SIDE SLOPES MUST BE 3H:1V
SEE NOTE 9 (TYP.)
COMBINED DETENTION AND
WETPOND SECTIONS
STD. PLAN - 252.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
DETENTION DESIGN WS
WQ DESIGN WS
ACCESS ROAD
SLOPE VEGETATION PER DETENTION
FACILITY REQUIREMENTS
INLET EROSION CONTROL/SLOPE
PROTECTION PER DETENTION
FACILITY REQUIREMENTS
INLET SUBMERGED 12" MIN.
2' MIN.
FIRST CELL
DEPTH 4' MIN.
TO 8' MAX.
SEDIMENT STORAGE
DEPTH, 12" MIN.
IF REQUIRED, PLACE LINER IN
SECOND CELL TO HOLD WATER
FLOW CONTROL OUTLET
STRUCTURE PER STD.
PLANS 237.00 - 237.20
2'-6" MAX.
DETENTION PER DETENTION
FACILITY REQUIREMENTS
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE
CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STD. PLAN 234.50.
3.ALL FACILITIES SHALL BE FENCED. FENCE SHALL BE PROVIDED IN ACCORDANCE WITH STD. PLAN 234.40.
4.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR
APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS
THE CONNECTING PIPE.
5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
3
1
SEE NOTE 4 (TYP.)
PLANT WITH WETLAND PLANTS PER
TABLE 6.4.1.A OF THE CITY OF RENTON
SURFACE WATER DESIGN MANUAL
ACCESS ROAD
ACCESS ROAD
SPILLWAY
WETLAND CELLFIRST CELL (FOREBAY)
INFLOW
PLAN VIEW
QUARRY SPALL PAD
SECTION VIEW
IF TOP OF BERM IS SUBMERGED 1' BELOW WQ DESIGN WS, BERM SIDE
SLOPES MAY BE 2H:1V, OTHERWISE SIDE SLOPES MUST BE 3H:1V
TOP OF BERM TO BE LEVEL AND AT OR 1' BELOW
WATER QUALITY (WQ) DESIGN WATER SURFACE (WS)
OUTLET PIPE SIZED PER
DETENTION FACILITY
REQUIREMENTS
COMBINED DETENTION AND
STORMWATER WETLAND
STD. PLAN - 253.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
SECTION B
SECTION A
PLAN VIEW
ACCESS COVER OR DOORS REQUIRED.
WATER QUALITY (WQ) DESIGN
WATER SURFACE (WS)
INLET
FIRST CELL SIZED FOR
25% TO 35% OF
WETPOOL VOLUME
WATER QUALITY (WQ) DESIGN
WATER SURFACE (WS)
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN
CRITERIA.
2.THE VAULT SHALL BE SEPARATED INTO TWO CELLS BY A WALL OR A REMOVABLE BAFFLE. IF A WALL OR NON REMOVABLE BAFFLE IS USED, A 5-FOOT x 10-FOOT
REMOVABLE MAINTENANCE ACCESS MUST BE PROVIDED FOR BOTH CELLS.
3.FOR VAULTS UNDER ROADWAYS, THE REMOVABLE PANEL MUST BE LOCATED OUTSIDE THE TRAVEL LANES. ALTERNATIVELY, MULTIPLE STANDARD LOCKING MANHOLE
COVERS MAY BE PROVIDED. SPACING OF MANHOLE COVERS SHALL BE 12 FEET, MEASURED ON CENTER, TO FACILITATE REMOVAL OF SEDIMENT. LADDERS AND
HAND-HOLDS NEED ONLY BE PROVIDED AT THE OUTLET PIPE AND INLET PIPE.
4.MINIMUM DIAMETER FOR ALL ACCESS OPENINGS (RISERS), EXCEPT THOSE COVERED BY REMOVABLE PANELS, IS 36 INCHES.
5.REMOVABLE PANEL SHALL BE AT GRADE, HAVE STAINLESS STEEL LIFTING EYES, AND WEIGH NO MORE THAN 5 TONS PER PANEL.
6.VAULTS PROVIDING MANHOLE ACCESS AT 12 FOOT SPACING NEED NOT PROVIDE CORNER VENTILATION PIPES. VENTILATION PIPES SHALL BE CAPPED OR OTHERWISE
COVERED, BUT DESIGNED SO THAT MAINTENANCE PERSONNEL CAN REMOVE FOR VENTILATION.
7.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO
AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
8.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
5'x10' GRATE, GRATED ACCESS DOOR, OR LOCKING
ACCESS PANEL OVER SECOND CELL. FOR VAULTS
WHERE SURFACE AREA OF SECOND CELL IS GREATER
THAN 1,250 SQUARE FEET, 4% OF THE TOTAL SURFACE
AREA MUST BE GRATED AND A 5'x10' REMOVABLE
LOCKING PANEL SHALL BE PROVIDED
"V" SHAPED BOTTOM
REMOVABLE BAFFLE OR WALL,
SEE NOTE 2
WETPOOL
WIDTH
WETPOOL LENGTH
12" MIN.
12" MIN.
REMOVABLE
BAFFLE
LADDER
2' MIN.
2' MIN.
WETPOOL
DEPTH
8' MAX.
SIZE TO CONVEY 100-YEAR
DESIGN FLOW WITHOUT
OVERTOPPING, 6" MIN.
4" MIN.
16" MAX.
FRAME AND SOLID COVER
MARKED "DRAIN" WITH
LOCKING BOLTS PER STD.
PLANS 204.40 AND 204.50
OUTLET WITH CAPACITY TO
CONVEY 100-YEAR DESIGN
FLOW WITHOUT OVERTOPPING
GRAVITY DRAIN (IF GRADE ALLOWS). PLACE
AS LOW AS GRADE ALLOWS BUT MUST BE 6"
MIN. ABOVE THE BASE ELEVATION OF VAULT
WALLS OR ABOVE SEDIMENT STORAGE AREA
3' MIN.
AVERAGE SEDIMENT STORAGE
12" MIN. (FIRST CELL)
BOTTOM SLOPE 0.5%-2%
TOWARD INLET END
BOTTOM SLOPE 0.5%-2% TOWARD OUTLET
END OF SECOND CELL (RECOMMENDED)
ACCESS DOORS OR REMOVABLE PANEL, SEE NOTE 5
AVERAGE 12" SEDIMENT
STORAGE (FIRST CELL)
4' MIN.
7' MIN.
NOTES:
A BINLET
OUTLET
8" MIN. GRAVITY DRAIN
SEE NOTE 7 (TYP.)
VALVE
SEE NOTE 7 (TYP.)
12" MIN. VENTILATION PIPES AT
CORNERS (TYP.), SEE NOTE 6
18" MAX. FROM CENTER OF
FRAME TO STRUCTURE
WALL FOR STEP ACCESS
6" MAX. FROM EDGE OF
OPENING TO STRUCTURE
WALL FOR STEP ACCESS
12" MIN.
5% MIN. (TY
P
.
)
LADDER
2' MIN.
FLOW RESTRICTOR
COMBINED DETENTION AND
WETVAULT
STD. PLAN - 254.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT
DOWNSPOUT
BUILDING ROOF
(CONTRIBUTING IMPERVIOUS AREA
SEE NOTE 4)
PONDING
EXTENTS
GUTTER
BIRD CAGE OVERFLOW
ROCK OR VEGETATION LINED DITCH,
OR PIPED CONNECTION, SEE NOTE 2
TOP OF SLOPE
BOTTOM OF SLOPE
(SHAPE CAN VARY TO FIT SITE, MINIMUM WIDTH = 18")
RIGHT-OF-WAY (SIDEWALK OR ALLEY)PARCEL BOUNDARY5' MIN.,
SEE NOTE 1
5' MIN.,
SEE NOTE 1
GENERAL NOTES:
1.MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.00, 265.10, AND 265.20, AND OTHER
UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR CONFLICTS.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
PIPED CONNECTION TO STORM
DRAIN SYSTEM, SEE NOTE 2
DRIVEWAY
(CONTRIBUTING IMPERVIOUS AREA
SEE NOTE 4)
SEE NOTE 3
ROCK SPLASH PAD PER STD. PLAN 260.10
DISPERSION TRENCH (TYP.),
SEE STD. PLAN 260.10
TOP OF PONDING
(USE AREA FOR SIZING, SEE NOTE 4)
OPTIONAL COMPACTED EARTH
BERM, 2' MIN. TOP WIDTH
2.5H:1V (OR FLATTER)
A
260.10
NOTES:
1.TOP OF RAIN GARDEN SHALL BE 5 FEET MIN. FROM BUILDINGS WITHOUT BASEMENT AND 10 FEET MIN. FROM BUILDINGS WITH BASEMENTS.
2.SLOPE PIPED CONNECTION AT 2% (PREFERRED), 1% MIN. USE 6" MIN. ASTM D1785 SCH 40 PVC. CONNECTIONS TO STORM DRAIN SYSTEM REQUIRE CITY
INSPECTION.
3.SHEET FLOW INTO RAIN GARDEN MAY BE KEPT WIDELY DISTRIBUTED OVER A STABILIZED SURFACE (PAVEMENT, PEA GRAVEL, GRASS). IF CONCENTRATED,
PROVIDE A SWALE WITH DECORATIVE ROCK AND VEGETATION TO PREVENT EROSION.
4.RAIN GARDEN SIZE AT TOP OF PONDING (OVERFLOW ELEVATION) TO BE AT LEAST 5% OF CONTRIBUTING HARD SURFACE AREA. IF LAWN/LANDSCAPE AREA
ALSO DRAINS TO RAIN GARDEN, INCREASE SIZE BY 2% OF LAWN/LANDSCAPE AREA. MAXIMUM CONTRIBUTING AREA SHALL BE 5,000 SF.
4' MIN.
6" MIN. FREEBOARD
OPTIONAL SURFACE
OVERFLOW WITH
CITY APPROVAL
RAIN GARDEN PLAN
STD. PLAN - 260.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
PLANTING NOTES:
1.REFER TO THE RAIN GARDEN HANDBOOK FOR WESTERN WASHINGTON
FOR GUIDANCE ON PLANT SELECTION SITING AND SPACING BY ZONE.
2.PLANTS MUST BE PERENNIAL AND ADAPTED TO THE CONDITIONS
ENCOUNTERED IN ITS ZONE IN THE RAIN GARDEN. SEE PLANTING ZONE
TABLE.
3.EVERGREEN AND DECIDUOUS VEGETATION MAY BE USED BUT THE
MAJORITY OF MATERIAL MUST PROVIDE A SIGNIFICANT ABOVE GROUND
PRESENCE YEAR ROUND.
4.PLANTING DESIGN SHOULD MINIMIZE COMPACTION OF SOIL THROUGH
PLANNED MAINTENANCE ACCESS. ANNUAL PLANTS REQUIRING SOIL
DISTURBANCE FOR HARVESTING (E.G., CARROTS) OR ANNUAL
REPLANTING ARE NOT PERMITTED.
SCALE:
SECTION - RAIN GARDEN A
260.00NTS
EXISTING
GROUND
PIPED
CONNECTION
(OPTIONAL)
2" MIN. WASHED ROUND ROCK.
EXTEND TO 12" BEYOND
BOTTOM OF RAIN GARDEN
MIN. EXCAVATION EXTENT
COMPOST AMENDED SOILS PER STD. PLAN 264.00 OR
BIORETENTION SOIL MIX PER STD. PLAN 262.60
MULCH 3" DEPTH, SEE NOTE 2
2.5 MIN.
1
2.5 MIN.
1
12" MIN.
6" PONDING
6" MIN.
FREEBOARD
1% MIN., 4% MAX. SLOPE
6"
MIN.NON-WOVEN GEOTEXTILE FOR SEPARATION
PER WSDOT SPECIFICATIONS GEOTEXTILE
FOR SEPARATION SECTION 9-33.2(1) TABLE 3
3/4" - 1-1/2" WASHED DRAIN ROCK
6" MIN.
1"
4' MIN.
DISPERSION
TRENCH (TYP.)
BOTTOM WIDTH
18" MIN.
3 2 1 2 3
PLANTING ZONES,
SEE PLANTING NOTES AND PLANTING ZONES TABLE
NOTES:
1.RAISED BERM SHALL BE FIRM, UNDISTURBED, NON-YIELDING NATIVE SOIL OR
DISTURBED SITE SOILS COMPACTED WITH 12 POUND HAND TAMPER IN 3-INCH
LIFTS. IF SITE SOILS ARE SANDY, CONSIDER IMPORTING DENSER, NON-PERMISSIVE
SOILS FOR RAISED BERM. TOP WIDTH SHALL BE 6-INCHES MIN.
2.WOODY MULCH PREFERRED, ROCK MULCH OR BARK CHIP MULCH NOT PERMITTED.
SEE STD. PLAN 262.60 FOR ARBORIST WOOD CHIP MULCH.
3.OVERFLOW TO BE PIPED TO STORM DRAIN SYSTEM PER STD. PLAN 260.00 UNLESS
SURFACE OVERFLOW CAN BE DIRECTED TO A SUITABLE LOCATION AS APPROVED
BY THE CITY.
TABLE: PLANTING ZONES
ZONE PLANT TYPE LOCATION
1 EMERGENTS, PERENNIALS & LOW SHRUBS
(PLANTS THAT CAN TOLERATE STANDING WATER)FACILITY BOTTOM
2 EMERGENTS, PERENNIALS & LOW SHRUBS
(PLANTS THAT CAN TOLERATE OCCASIONAL STANDING WATER)LOWER SLOPE TO TOP OF PONDING
3 GROUNDCOVERS / SHRUBS UPPER SLOPE / SURFACE GRADE
ACCENT SHRUB
(SELECT APPROPRIATE SHRUB BASED ON ZONE)SURFACE GRADE / LOWER SLOPE / FACILITY BOTTOM
TREE CENTER WITHIN UPPER SLOPE. CONSIDER CANOPY OF FULL-GROWN TREE.
ALLOW CLEARANCE FOR WALKWAYS.
1
2
3
1 2 3
3
2' MIN.
OPTIONAL COMPACTED
EARTH BERM, SEE NOTE 1
2" MIN. WASHED
ROUND ROCK
GENERAL NOTES:
1.UNDERDRAINS ARE NOT ALLOWED WITHIN RAIN GARDENS.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
OPTIONAL SURFACE
OVERFLOW, SEE NOTE 3
6" BIRD CAGE OVERFLOW, NDS 80 OR
EQUAL. SET RIM AT TOP OF PONDING
AND FASTEN TO DRAIN PIPE
45° ELBOW (TYP.)
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
RAIN GARDEN SECTION
STD. PLAN - 260.10
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.ALL PERMEABLE PAVEMENT APPLICATIONS SHALL CONFORM TO THE
CITY OF RENTON SURFACE WATER DESIGN MANUAL SECTION C.2.7 AND
WSDOT LOCAL AGENCY GENERAL SPECIAL PROVISIONS.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
PERMEABLE
PAVEMENT SECTION,
SEE STD. PLAN 261.10
IMPERMEABLE
PAVEMENT
6"
2" MIN. EMBEDMENT KEY
FROM ADJACENT IMPERMEABLE
PAVEMENT BASE
CONCRETE BAND EXTEND TO
BOTTOM OF PAVEMENT BASE
FLUSH EDGES
PERMEABLE
PAVEMENT SECTION,
SEE STD. PLAN 261.10
6"
MIN. 4,000 PSI COMPRESSIVE
STRENGTH CONCRETE BAND (TYP.)
DEPRESS LANDSCAPING 1"
NEXT TO EDGE TREATMENT
LANDSCAPE
EXTEND TO BOTTOM OF
PAVEMENT BASE
KEY OR EXPANSION JOINT
PER DPW APPROVAL (TYP.)
CONCRETE BAND BETWEEN PAVEMENT
CONCRETE BAND AT LANDSCAPE
PERMEABLE PAVEMENT -
EDGE TREATMENTS
STD. PLAN - 261.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.PERMEABLE PAVEMENT THICKNESSES LISTED FOR POROUS ASPHALT INCLUDE WEARING COURSE AND ASPHALT TREATED PERMEABLE BASE
(ATPB) WHEN UTILIZED. PERMEABLE ASPHALT TREATED BASE (PATB) SHALL CONFORM TO THE REQUIREMENTS OF APWA GSP 4-SA2. CHOKER
COURSE REQUIRED WHEN ATPB IS USED.
2.CRUSHED SURFACING CHOKER COURSE (CSCC) SHALL CONFORM TO THE REQUIREMENTS OF APWA GSP 4-04.2(9-03.9(2)).OPT2.
3.AGGREGATE BASE SHALL CONFORM TO THE REQUIREMENTS OF APWA GSP 4-04.2(9-03.9(2)).OPT1. RUNOFF STORAGE REQUIREMENTS MAY
REQUIRE A THICKER AGGREGATE BASE. HYDRAULIC MODELING RESULTS SHOWING THE REQUIRED AGGREGATE BASE THICKNESS FOR
STORMWATER CONTROL MUST BE SUBMITTED.
4.PREPARE AND PROTECT SUBGRADE PER APWA GSP 2-06.3(3) SUBGRADE FOR PERMEABLE PAVEMENTS. COMPACT TO A DEPTH OF 6" TO 90%-92%
OF MAXIMUM DENSITY PER WSDOT 2-03.3(14)D. OVERCOMPACTED SUBGRADE SHALL BE SCARIFIED TO 8" MIN. AND RECOMPACTED.
5.PERMEABLE PAVEMENT SUBJECT TO VEHICULAR USE (POLLUTION-GENERATING) SHALL BE DESIGNED WHERE THE SOIL BENEATH THE BMP
MEETS A MINIMUM ORGANIC MATTER CONTENT OF 1.0% AND A MINIMUM CATION EXCHANGE CAPACITY OF 5 MILLIEQUIVALENTS PER 100 GRAMS.
WHERE THE NATIVE SOIL DOES NOT MEET THESE PROPERTIES, A 6-INCH SAND LAYER IS REQUIRED BENEATH THE AGGREGATE BASE LAYER OF
THE PERMEABLE PAVEMENT.
6.PAVEMENT BASE SHALL BE INSTALLED PER APWA GSP 4-04.3(5) SHAPING AND COMPACTION.
PERVIOUS CONCRETE/POROUS ASPHALT
MINIMUM MATERIAL THICKNESS (IN):
A
B
SUBGRADE, SEE NOTE 4
PAVEMENT BASE,
SEE NOTE 6
RESIDENTIAL STREETS AND
ALLEYS PEDESTRIAN
LAYER MATERIAL TYPE*
PERVIOUS
CONCRETE
(IN)
POROUS
ASPHALT
(IN)
PERVIOUS
CONCRETE
(IN)
POROUS
ASPHALT
(IN)
PERMEABLE PAVEMENT, SEE NOTE 1 8 6 5 4
CHOKER COURSE, SEE NOTE 2 0 2 0 2
AGGREGATE BASE, SEE NOTE 3 8 6 6 4
A
B
C
C
GENERAL NOTES:
1.REFER TO WSDOT LOCAL AGENCY GENERAL SPECIAL PROVISIONS (GSPs) DIVISIONS 2-9 APWA GSPs, AND WSDOT STANDARD SPECIFICATIONS.
2.POROUS HMA SHALL CONFORM TO REQUIREMENTS OF APWA GSP 5-04.
3.MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.00, 265.10, AND
265.20, AND OTHER UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR
CONFLICTS.
4.PERMEABLE PAVEMENT SHALL BE DESIGNED OR REVIEWED BY A LICENSED ENGINEERING GEOLOGIST OR GEOTECHNICAL ENGINEER. FOR ALL
APPLICATIONS, PAVEMENT DESIGNS MUST BE PREPARED BY AN ENGINEER LICENSED IN WASHINGTON STATE.
5.ACCEPTANCE TESTING FOR SIDEWALKS, PATHS AND VEHICULAR PAVEMENT LESS THAN 2,000 SF SHALL BE AS FOLLOWS: PAVEMENT SHALL BE
PERMEABLE ENOUGH TO ABSORB WATER AT A MINIMUM RATE OF 20 INCHES PER HOUR IMMEDIATELY AFTER SURFACE HAS BEEN WETTED
CONTINUOUSLY FOR AT LEAST 10 MINUTES. APPROVAL WITH 5 GALLON BUCKET TEST, WATER TRUCK, OR ASTM C1701 USING A 12-INCH RING
SEALED AT THE PAVEMENT SURFACE.
6.ACCEPTANCE TESTING FOR ROADWAYS AND PARKING AREAS OF 2,000 SF OR GREATER SHALL HAVE A MINIMUM INFILTRATION RATE OF 100
IN/HR PER ASTM C1701 AND APWA GSP 5-04.3 AND 5-06.3(6).
7.ROADWAYS, DRIVEWAYS, AND PARKING LOTS SUBJECT TO VEHICLE LOADING SHALL MEET STRUCTURAL REQUIREMENTS OF CITY OF RENTON
TRANSPORTATION DEPARTMENT STANDARDS FOR EQUIVALENT NON-PERMEABLE PAVEMENT TYPES.
8.FOR PERMEABLE PAVEMENT INSTALLATIONS ON SLOPES GREATER THAN 5%, CHECK DAMS AREA REQUIRED PER STD. PLAN 261.20.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
SAND LAYER (IF REQUIRED),
SEE NOTE 5
PERVIOUS CONCRETE/POROUS ASPHALT
12" MIN. ABOVE SEASONAL HIGH
GROUNDWATER OR
HYDRAULICALLY
RESTRICTIVE LAYER
PERMEABLE PAVEMENT MATERIAL
SECTIONS - PERVIOUS CONCRETE AND
POROUS ASPHALT
STD. PLAN - 261.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
NOTES:
1.UNDERDRAIN AGGREGATE SHALL MEET GRAVEL BACKFILL FOR DRAINS PER WSDOT STD. SPECIFICATION SECTION 9-03.12(4).
2.UNDERDRAIN TO BE 6" MIN. (PRIVATE), 8" MIN. (PUBLIC) SLOTTED PVC, SDR 35 PER ASTM D3034. SLOTS SHOULD BE CUT PERPENDICULAR TO THE LONG AXIS OF THE PIPE
AND BE 0.04 TO 0.069 INCHES BY 1 INCH LONG AND BE SPACED 0.25 INCHES APART (SPACED LONGITUDINALLY). SLOTS SHOULD BE ARRANGED IN FOUR ROWS SPACED ON
45-DEGREE CENTERS AND COVER 1/2 OF THE CIRCUMFERENCE OF THE PIPE. SLOPE PIPE AT 0.5% MIN. UNLESS OTHERWISE SPECIFIED. PROVIDE ONE CLEANOUT MIN.
PER 100 FEET OF UNDERDRAIN, AND AT EACH END. SEE STD. PLAN 226.00.
3.PIPE WILL HAVE A MINIMUM COVER DEPTH OF 12" AND BEDDING DEPTH OF 6".
SEE PERMEABLE
PAVEMENT SECTION
STD. PLAN 261.10
DESIGNER TO SPECIFY
CHECK DAM HEIGHT 3" MIN. KEY
12" MIN.
DESIGNER
TO SPECIFY
DESIGNER TO SPECIFY
SPACING
DESIGNER TO SPECIFY
SPACING
4" MIN.
10% MAX. SLOPE 1" MIN. CHECK DAM
CLEARANCE
1
1
6"
6" MIN. BEDDING
SEE PERMEABLE
PAVEMENT SECTION
STD. PLAN 261.10
10% MAX. SLOPE
1" MIN. CHECK DAM
CLEARANCE
OUTFLOW
SEE PERMEABLE
PAVEMENT SECTION
STD. PLAN 261.10 2" MIN.
12" MIN.
COVER
12" MIN.
12" MIN. SUMP
CONTROLLED DENSITY FILL SUBSURFACE CHECK DAM
12" MIN.
CLEAR
CONCRETE BAND SUBSURFACE CHECK DAM
UNDERDRAIN AND OVERFLOW
CONTROL STRUCTURE WITH RISER
GENERAL NOTES:
1.LOCATE UNDERDRAIN BELOW STRUCTURAL PAVEMENT BASE DEPTH.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
CONTROLLED DENSITY FILL
SUBSURFACE CHECK DAM PER
WSDOT SECTION 2-09.3(1)E
(TYP.). CHECKDAM REQUIRED
FOR SLOPE STEEPER THAN 5%
COMMERCIAL CONCRETE
SUBSURFACE CHECK DAM PER
WSDOT SECTION 6-02.3(2)B (TYP.).
CHECKDAM REQUIRED FOR
SLOPE STEEPER THAN 5%
DESIGN WATER SURFACE
ELEVATION CONTROLLED
BY OUTLET
CONTROL JOINT (TYP.)
(PERVIOUS CONCRETE ONLY)
SLOTTED UNDERDRAIN,
SEE NOTES 2 AND 3
DESIGN WATER SURFACE
ELEVATION CONTROLLED BY
OUTLET
CONTROL JOINT (TYP.)
(PERVIOUS CONCRETE ONLY)
CLEANOUT PER STD.
PLAN 226.00 WATER LEVEL CONTROLLED BY
OUTLET ELEVATION
OUTLET ELEVATION,
DESIGNER TO SPECIFY
TYPE 1L CATCH BASIN (CB)
PER STD. PLAN 200.10 OR
OTHER STRUCTURE WITH
APPROVAL
UNDERDRAIN AGGREGATE,
SEE NOTE 1
REMOVABLE PLUG
FOR MAINTENANCE
SLOTTED UNDERDRAIN PIPE,
SEE NOTES 2 AND 3
SANITARY TEE
WITH OPTIONAL
RISER PIPE
DESIGNER TO SPECIFY
SUBSURFACE CHECK
DAM HEIGHT 3" MIN. KEY
6" MIN.
BEDDING
SLOTTED UNDERDRAIN,
SEE NOTES 2 AND 3
12" MIN.
COVER
1
1
3' MAX.
SUBGRADE PER
STD. PLAN 261.19
SUBGRADE PER STD. PLAN 261.10
6"
SUBGRADE PER STD. PLAN 261.10
PERMEABLE PAVEMENT - SUBSURFACE
CHECK DAMS AND UNDERDRAIN
STD. PLAN - 261.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
2%
1
2.5 MIN.
1
2.5 MIN.
GENERAL NOTES:
1.MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.00, 265.10, AND 265.20, AND
OTHER UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR CONFLICTS.
2.BSM PLACEMENT, GRADING, AND CONSOLIDATION SHALL NOT OCCUR WHEN THE BSM IS EXCESSIVELY WET OR HAS BEEN SUBJECTED TO MORE THAN
1/2" OF PRECIPITATION WITHIN 48 HOURS PRIOR TO PLACEMENT. EXCESSIVELY WET IS DEFINED AS BEING AT OR ABOVE 22% SOIL MOISTURE BY A
GENERAL TOOLS AND INSTRUMENTS DSMM500 PRECISION DIGITAL SOIL MOISTURE METER WITH PROBE (OR EQUIVALENT). THERE SHOULD BE NO
VISIBLE FREE WATER IN THE MATERIAL. THE CONTRACTOR SHALL PLACE BSM LOOSELY WITH A CONVEYOR BELT OR WITH AN EXCAVATOR OR LOADER
FROM A HEIGHT NO HIGHER THAN 6 FEET, UNLESS OTHERWISE APPROVED BY THE ENGINEER (I.E., DO NOT DUMP MATERIAL DIRECTLY FROM TRUCK
INTO CELL). COMPACT BSM USING NON-MECHANICAL COMPACTION METHODS (E.G., BOOT PACKING, HAND TAMPING, OR WATER CONSOLIDATION) TO
83% (± 2%) OF THE MAXIMUM DRY DENSITY PER MODIFIED PROCTOR TEST (ASTM D1557), OR AS DIRECTED BY THE ENGINEER.
3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
NOTES:
1.AVOID COMPACTION OF EXISTING SUBGRADE BELOW BASIN.
2.SCARIFY SUBGRADE TO A DEPTH OF 3 INCHES MINIMUM IMMEDIATELY PRIOR TO PLACEMENT OF BIORETENTION SOIL MIX (BSM) AND UNDERDRAIN
AGGREGATE.
3.18" MIN. BIORETENTION SOIL MIX ON BOTTOM AND SIDES TO TOP OF PONDING AREA. BIORETENTION SOIL MIX TO MEET STD. PLAN 262.60.
4.ARBORIST WOOD CHIP MULCH TO MEET STD. PLAN 262.60.
5.DO NOT USE FILTER FABRIC BETWEEN SUBGRADE AND THE BIORETENTION SOIL MIX.
6.MAXIMUM LONGITUDINAL SLOPE (ALONG DIRECTION OF FLOW) OF BIORETENTION SWALES SHALL BE 6%.
7.WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES, TREES MAY BE LOCATED IN BIORETENTION. REDUCE BOTTOM WIDTH TO 6 INCHES
MINIMUM AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF LINER FOR LINED FACILITIES.
1.5
1
FOR EDGE TREATMENT OPTIONS,
SEE STD. PLAN 262.20
ROADWAY OR
PARKING LOT
TRANSITION ZONE SOIL,
SEE STD. PLAN 262.20
2"-4" DEPTH ARBORIST
WOOD CHIP MULCH,
SEE NOTE 4
OVERFLOW TO STORM MAIN
SIDEWALK, LANDSCAPING,
DRIVEWAY, OR PAVEMENT
ANGLE OF REPOSE
DESIGNER TO SPECIFY WATER STORAGE ELEVATION
TOP OF BANK
ELEVATION
SCARIFIED AND UNCOMPACTED SUBGRADE,
SEE NOTES 1 AND 2
OVERFLOW STRUCTURE PER STD. PLAN
262.40 UNLESS SPECIFIED OTHERWISE
BIORETENTION SOIL MIX (BSM),
SEE NOTE 3
GRAVEL BASE, SEE STD. PLAN 262.40
SEE STD.
PLAN
262.20
1"
6"
2"-12" PONDING
DEPTH
18" MIN.
SEE STD.
PLAN
262.20
BOTTOM WIDTH
MIN. 18"
6" MIN.
FREEBOARD
12" MIN. ABOVE
SEASONAL HIGH
GROUNDWATER OR
HYDRAULICALLY
RESTRICTIVE LAYER
SIDE SLOPE AT TREE, SEE NOTE 7
BIORETENTION SECTION
(NO UNDERDRAIN)
STD. PLAN - 262.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
NOTES:
1.AVOID COMPACTION OF EXISTING SUBGRADE BELOW BASIN.
2.SCARIFY SUBGRADE TO A DEPTH OF 3 INCHES MINIMUM IMMEDIATELY PRIOR TO PLACEMENT OF BIORETENTION SOIL MIX AND UNDERDRAIN AGGREGATE,
EXCEPT WHEN LINER IS REQUIRED.
3.LINER TO BE INSTALLED ONLY WHEN REQUIRED IN THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). LOW PERMEABILITY LINER TO
BE 30 MIL MIN. GEOMEMBRANE LINER OR 12 INCHES MIN. (DRY) CLAY LINER. CLAY LINER TO BE COMPACTED TO 95% MINIMUM DRY DENSITY (ASTM D698),
WITH AT LEAST 30% CLAY PARTICLES PASSING (ASTM D422) AND AT LEAST 15% PLASTICITY INDEX (ASTM D4318).
4.UNDERDRAIN TO BE 6" MIN. (PRIVATE), 8" MIN. (PUBLIC) SLOTTED PVC, SDR 35 PER ASTM D3034. SLOTS SHOULD BE CUT PERPENDICULAR TO THE LONG AXIS
OF THE PIPE AND BE 0.04 TO 0.069 INCHES BY 1 INCH LONG AND BE SPACED 0.25 INCHES APART (SPACED LONGITUDINALLY). SLOTS SHOULD BE ARRANGED
IN FOUR ROWS SPACED ON 45-DEGREE CENTERS AND COVER 1/2 OF THE CIRCUMFERENCE OF THE PIPE. SLOPE PIPE AT 0.5% MIN UNLESS OTHERWISE
SPECIFIED. PROVIDE ONE CLEANOUT MIN. PER 100 FEET OF UNDERDRAIN, AND AT EACH END. SEE STD. PLAN 226.00. MATCH CROWN ELEVATION OF
UNDERDRAIN TO OVERFLOW PIPE UNLESS OTHERWISE SPECIFIED.
5.18" MIN. BIORETENTION SOIL MIX ON BOTTOM AND SIDES TO TOP OF PONDING AREA. BIORETENTION SOIL MIX TO MEET STD. PLAN 262.60.
6.UNDERDRAIN AGGREGATE TO MEET GRAVEL BACKFILL FOR DRAINS PER WSDOT STD. SPECIFICATION SECTION 9-03.12(4).
7.ARBORIST WOOD CHIP MULCH TO MEET STD. PLAN 262.60.
8.MAXIMUM LONGITUDINAL SLOPE (ALONG DIRECTION OF FLOW) OF BIORETENTION SWALES SHALL BE 6%.
9.WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES, TREES MAY BE LOCATED IN BIORETENTION. REDUCE BOTTOM WIDTH TO 6 INCHES
MINIMUM AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF LINER FOR LINED FACILITIES.
2%
1
2.5 MIN.
1
2.5 MIN.
1.5
1
GENERAL NOTES:
1.MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.00, 265.10, AND 265.20, AND
OTHER UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR CONFLICTS.
2.BSM PLACEMENT, GRADING, AND CONSOLIDATION SHALL NOT OCCUR WHEN THE BSM IS EXCESSIVELY WET OR HAS BEEN SUBJECTED TO MORE THAN
1/2" OF PRECIPITATION WITHIN 48 HOURS PRIOR TO PLACEMENT. EXCESSIVELY WET IS DEFINED AS BEING AT OR ABOVE 22% SOIL MOISTURE BY A
GENERAL TOOLS AND INSTRUMENTS DSMM500 PRECISION DIGITAL SOIL MOISTURE METER WITH PROBE (OR EQUIVALENT). THERE SHOULD BE NO
VISIBLE FREE WATER IN THE MATERIAL. THE CONTRACTOR SHALL PLACE BSM LOOSELY WITH A CONVEYOR BELT OR WITH AN EXCAVATOR OR LOADER
FROM A HEIGHT NO HIGHER THAN 6 FEET, UNLESS OTHERWISE APPROVED BY THE ENGINEER (I.E., DO NOT DUMP MATERIAL DIRECTLY FROM TRUCK
INTO CELL). COMPACT BSM USING NON-MECHANICAL COMPACTION METHODS (E.G., BOOT PACKING, HAND TAMPING, OR WATER CONSOLIDATION) TO
83% (± 2%) OF THE MAXIMUM DRY DENSITY PER MODIFIED PROCTOR TEST (ASTM D1557), OR AS DIRECTED BY THE ENGINEER.
3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
ANGLE OF REPOSE
SCARIFIED AND UNCOMPACTED SUBGRADE,
SEE NOTES 1 AND 2
OVERFLOW STRUCTURE PER STD. PLAN
262.40 UNLESS SPECIFIED OTHERWISE
1"
6"
2"-12" PONDING
DEPTH
18" MIN.
BOTTOM WIDTH
MIN. 18"
6" MIN.
FREEBOARD
FOR EDGE TREATMENT OPTIONS,
SEE STD. PLAN 262.20
ROADWAY OR
PARKING LOT
TRANSITION ZONE SOIL,
SEE STD. PLAN 262.20
2"-4" DEPTH ARBORIST
WOOD CHIP MULCH,
SEE NOTE 7
DESIGNER TO SPECIFY WATER STORAGE ELEVATION
TOP OF BANK
ELEVATION
OVERFLOW TO STORM MAIN
LOW PERMEABILITY LINER
WHEN REQUIRED, SEE NOTE 3
GRAVEL BASE, SEE STD. PLAN 262.40
12" MIN.
UNDERDRAIN AGGREGATE,
SEE NOTE 6
UNDERDRAIN, SEE NOTE 4
BIORETENTION SOIL MIX (BSM),
SEE NOTE 5
SIDE SLOPE AT TREE, SEE NOTE 9
SIDEWALK, LANDSCAPING,
DRIVEWAY, OR PAVEMENT
SEE STD.
PLAN
262.20 SEE STD.
PLAN
262.20
BIORETENTION SECTION
(WITH UNDERDRAIN)
STD. PLAN - 262.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
BIORETENTION ADJACENT TO SIDEWALK, LANDSCAPING,
DRIVEWAY, OR PAVEMENT WITH FLUSH CURB OR NO CURB
NOTES:
1.THE FOLLOWING MINIMUM SETBACKS SHALL BE PROVIDED FOR FACILITIES WITH SLOPED SIDES ADJACENT TO CURB:
1.1.4-FOOT MIN. FROM FACE OF CURB TO TOP OF SLOPE ADJACENT TO MAJOR ARTERIAL STREET.
1.2.2-FOOT MIN. FROM FACE OF CURB TO TOP OF SLOPE ADJACENT TO MINOR ARTERIAL AND COLLECTOR ARTERIAL STREET.
1.3.1-FOOT MIN. FROM FACE OF CURB TO TOP OF SLOPE ADJACENT TO NON-ARTERIAL STREET OR PARKING LOT WITH NON-FLUSH CURB.
2.THE FOLLOWING MINIMUM SETBACKS SHALL BE PROVIDED FOR FACILITIES WITH SLOPED SIDES ADJACENT TO FLUSH CURB OR NO CURB:
2.1.2-FOOT MIN. FROM EDGE OF DRIVEWAY OR PAVEMENT TO TOP OF SLOPE ADJACENT TO DRIVEWAY OR PAVEMENT.
2.2.1-FOOT MIN. FROM EDGE OF SIDEWALK OR LANDSCAPING TO TOP OF SLOPE ADJACENT TO SIDEWALK OR LANDSCAPING.
3.COMPACT TRANSITION ZONE SOIL IMMEDIATELY BEHIND CURB TO 90% MAX. STANDARD PROCTOR DENSITY (ASTM D698).
4.TRANSITION ZONE SOIL SHALL BE BIORETENTION SOIL MIX OR AMENDED SOIL PER GENERAL NOTE 1.
5.18" MINIMUM BIORETENTION SOIL MIX PER STD. PLAN 262.60 TO TOP OF PONDING DEPTH.
2%
SEE NOTE 2
6" MIN.
FREEBOARD
1"
1"
2%
2"-4" DEPTH ARBORIST WOOD CHIP MULCH, SEE STD. PLAN 262.60
SIDEWALK, LANDSCAPING,
DRIVEWAY, OR PAVEMENT
TOP OF PONDING
BIORETENTION SOIL MIX, SEE NOTE 5
CONCRETE CURB, SEE STD. PLAN 101
ROADWAY OR
PARKING LOT
TRANSITION ZONE SOIL, SEE NOTES 3 AND 4
2"-4" DEPTH ARBORIST WOOD CHIP MULCH, SEE STD. PLAN 262.60
BIORETENTION SOIL MIX, SEE NOTE 5
TOP OF PONDING
TOP OF BANK
ELEVATION
6"
6" MIN.
FREEBOARD
BIORETENTION ADJACENT TO CURB
GENERAL NOTES:
1.SOIL AMENDMENT: SCARIFY OR TILL SUBGRADE TO 3-INCH DEPTH. PLACE 3-INCHES OF TOPSOIL ON SURFACE AND TILL INTO 5-INCHES OF
SITE SOIL. SCARIFICATION DOES NOT APPLY TO LINED FACILITIES. TOPSOIL SHALL HAVE A MINIMUM ORGANIC MATTER CONTENT OF 10% DRY
WEIGHT IN PLANTING BEDS AND 5% IN TURF AREAS, AND A pH FROM 6.0 TO 8.0 OR MATCHING THE pH OF THE ORIGINAL UNDISTURBED SOIL.
2.SEE STD. PLAN 262.30 FOR CURB CUTS.
3.FOR FACILITIES WITH LINERS, PROVIDE LINER ANCHOR PER WSDOT SPECIFICATIONS 8-29.3(2).
4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
TRANSITION ZONE SOIL, SEE NOTES 3 AND 4
6"
SEE NOTE 1
BIORETENTION - EDGE TREATMENTS
STD. PLAN - 262.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
PLAN
INFLOW
MATCH
GUTTER
WIDTH
MATCH
CURB
WIDTH
12" MIN.
18"-24""
DESIGNER
TO SPECIFY,
SEE NOTE 2
6" MIN.
3'-6" MIN.
6"
TAPER, (TYP.)
6"
TAPER GUTTER AT CURB CUT TO MATCH
GUTTER SLOPE UPSLOPE AND
DOWNSLOPE OF CURB CUTROADWAY STREAMBED
COBBLES,
SEE NOTE 3
12"
A
ROADWAYINFL
O
W
CURB
SEE NOTE 1
SPLASH APRON
GENERAL NOTES:
1.BOND NEW CURB AND GUTTER TO EXISTING CURB AND GUTTER WITH EPOXY AND DOWEL CONNECTION, IF RETROFITTING INTO EXISTING
CURBLINE. REFER TO STD. PLAN 101.10 FOR EXPANSION JOINT DETAIL.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
ROADWAY
SLOPE
INFLOW
2.5
1
SECTION A
2" GUTTER DEPRESSION
AT FLOWLINE
18''1" DROP TO COBBLES
6" MIN. FREEBOARD
BIORETENTION FACILITY
GUTTER UPSLOPE AND
DOWNSLOPE OF CURB CUT
TYPICAL SIDE SLOPE
COMPACT SOIL BELOW
COBBLES, SEE NOTE 4
NOTES:
1.SEE STD. PLAN 262.20 FOR EDGE TREATMENT OUTSIDE INLET AREA.
2.INLET CURB CUT WIDTH SHALL BE 24" ON GUTTER SLOPES ≥ 5% AND 18" ON GUTTER SLOPES < 5%.
3.STREAMBED COBBLES SHALL BE 6" COBBLES PER WSDOT 9-03.11(2). COBBLE PAD TO BE 8" THICK, WITH 1:1 SIDE SLOPES, TAPERING TO 12''
WIDE AT FACILITY BOTTOM.
4.COMPACT BIORETENTION SOIL MIX UNDER COBBLES TO 90% MAX STANDARD PROCTOR DENSITY (ASTM D698).
4" CRUSHED SURFACING
TOP COURSE
8"
UNCOMPACTED BIORETENTION SOIL
MIX (BSM), SEE STD. PLAN 262.60
2"-4" ARBORIST WOOD CHIP
MULCH, SEE STD. PLAN 262.60
18" MIN.
1
1
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
BIORETENTION - CURB CUT INLETS
STD. PLAN - 262.30
A
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
NOTES:
1.FRAME AND GRATE SHALL BE LOCKING AND GRATE SHALL BE BOLTED TO FRAME. FRAME SHALL CONFORM TO WSDOT STANDARD PLAN
B-30.10-03. GRATE TO BE DUCTILE IRON BEEHIVE GRATE FITTING 20"x24" FRAME. OLYMPIC FOUNDRY PART SM60BH OR EQUAL. SEE
STANDARD SPECIFICATIONS 9-05.15(2).
2.MINIMUM STREAMBED COBBLE DIAMETER SHALL BE LARGER THAN MAXIMUM GRATE OPENING.
3.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. THEN APPLY
MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND FRAMES.
4.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED
EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
6" MIN.
CAST IRON BEEHIVE GRATE
AND FRAME, SEE NOTE 1
CATCH BASIN TYPE 1 PER
STD. PLAN 200.00 OR OTHER
STRUCTURE WITH APPROVAL
CATCH BASIN ADJUSTMENT SECTION AS
REQUIRED, DESIGNER TO SPECIFY ELEVATION
12" MIN. SUMP
6" MIN.
6" MIN.
VARIES, 5' MAX.
CONCRETE BASE
DESIGN PONDING
ELEVATION
GRAVEL BACKFILL FOR DRAINS,
COMPACT PER WSDOT STD. SPEC . 9-03.12(4)
STORM DRAIN PIPE,
DESIGNER TO SPECIFY
SEE NOTE 4 (TYP.)
UNDERDRAIN PIPE, IF REQUIRED,
SEE STD. PLAN 262.10
OPTIONAL 6" OR 8" STREAMBED COBBLES,
PER WSDOT 9-03.11(2), SEE NOTE 2
SEE NOTE 3
GENERAL NOTES:
1.PLANT SPACING WITHIN FACILITY TO ALLOW MAINTENANCE ACCESS TO STRUCTURE.
2.12-INCH MIN. CLEARANCE WITHIN OVERFLOW STRUCTURE SHALL BE PROVIDED FOR MAINTENANCE ACCESS.
3.OVERFLOW PIPES MUST BE LOCATED AT AN ELEVATION HIGHER THAN THE STORM DRAIN HYDRAULIC GRADE LINE TO PREVENT BACKFLOW
INTO THE BIORETENTION FACILITY.
4.OVERFLOW STRUCTURE SHALL BE LOCATED WITHIN 10 FEET OF ROAD EDGE FOR MAINTENANCE ACCESS, UNLESS APPROVED OTHERWISE.
OVERFLOW STRUCTURE MAY BE LOCATED IN SIDE SLOPES.
5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
BIORETENTION - OVERFLOW OUTLET
STRUCTURE
STD. PLAN - 262.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
TABLE: PLANTING ZONES
ZONE PLANT TYPE LOCATION
1 EMERGENTS, PERENNIALS & LOW SHRUBS (PLANTS
THAT CAN TOLERATE STANDING WATER)FACILITY BOTTOM
2
EMERGENTS, PERENNIALS & LOW SHRUBS (PLANTS
THAT CAN TOLERATE OCCASIONAL STANDING
WATER)
LOWER SLOPE TO TOP OF PONDING
3 GROUNDCOVERS / SHRUBS UPPER SLOPE / SIDEWALK GRADE
ACCENT SHRUB (SELECT APPROPRIATE SHRUB
BASED ON ZONE)SIDEWALK GRADE / LOWER SLOPE / FACILITY BOTTOM
TREE UPPER SLOPE, SEE NOTE 1
NOTES:
1.WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES, TREES MAY BE LOCATED IN BIORETENTION. REDUCE
BOTTOM WIDTH TO 6" MIN. AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF
LINER FOR LINED FACILITIES.
ROADWAY
TRANSITION ZONE SOIL,
SEE STD. PLAN 262.20
2"-4" DEPTH ARBORIST
WOOD CHIP MULCH,
SEE STD. PLAN 262.60
BIORETENTION SOIL MIX,
SEE STD. PLAN 262.60
SIDEWALK OR LANDSCAPING
SCARIFIED AND UNCOMPACTED SUBGRADE
2"-12" PONDING
DEPTH
18" MIN.
BOTTOM WIDTH
MIN. 18"
3 2 1 2 3
PLANTING ZONES,
SEE BELOW
1
2
3
1 2 3
3
GENERAL NOTES:
1.ALL PLANTS SHALL BE SELECTED WITH A MAXIMUM MATURE HEIGHT NOT GREATER THAN 30-INCHES ABOVE THE TOP OF THE
FACILITY, WITH THE EXCEPTION OF TREES AND ACCENT SHRUBS.
2.SEE STD. PLANS 262.00, 262.10, AND 262.20 FOR SECTION VIEWS OF BIORETENTION FACILITIES.
3.SEE THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) TABLE C.2.6.A FOR A SELECTION OF
APPROVED WATER TOLERANT PLANTS. ADDITIONAL SPECIES ARE ALLOWED WITH CITY APPROVAL.
4.SELECT A MINIMUM OF 50% EVERGREEN PLANTS.
5.PLANTS ADJACENT TO STREET, DRIVEWAY, OR SIDEWALK SHALL BE SELECTED AND SPACED TO ALLOW ACCESS TO
VEHICLES AND NOT IMPEDE PEDESTRIANS.
6.PLANTS SHALL BE SPACED TO ENSURE CLEAR ACCESS AND UNIMPEDED FLOW FROM INLETS, OUTLETS, AND OVERFLOWS.
7.CONTINUE MULCH FOR A MINIMUM OF 2-FEET PAST THE TOP OF BANK ELEVATION OR INSTALL LANDSCAPE EDGING IF
FACILITY IS ADJACENT TO TURF.
8.PLANTING DESIGN SHOULD MINIMIZE COMPACTION OF BIORETENTION SOIL MIX THROUGH PLANNED MAINTENANCE ACCESS.
ANNUAL PLANTS REQUIRING SOIL DISTURBANCE FOR HARVESTING (E.G., CARROTS) OR ANNUAL REPLANTING ARE NOT
PERMITTED.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
6" MIN.
1.5
1
SIDE SLOPE AT
TREE, SEE NOTE 1
BIORETENTION PLANTING -
SECTION VIEW
STD. PLAN - 262.50
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
BIORETENTION SOIL MIX, COMPOST,
AND MULCH SPECIFICATIONS
STD. PLAN - 262.60
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
BIORETENTION SOIL MIX
BIORETENTION SOIL MIX (BSM) SHALL BE A WELL-BLENDED HOMOGENEOUS MIXTURE OF 60 TO 65 PERCENT BY VOLUME MINERAL
AGGREGATE FOR BIORETENTION SOIL AND 35 TO 40 PERCENT BY VOLUME COMPOST AS DETAILED IN THE TABLES BELOW.
TABLE: MINERAL AGGREGATE GRADATION
SIEVE SIZE PERCENT PASSING
3/8-INCH 100 PERCENT
U.S. NO. 4 95 TO 100 PERCENT
U.S. NO. 10 75 TO 90 PERCENT
U.S. NO. 40 25 TO 40 PERCENT
U.S. NO. 100 4 TO 10 PERCENT
U.S. NO. 200 2 TO 4 PERCENT
COMPOST
COMPOST MUST ORIGINATE A MINIMUM 65 PERCENT BY VOLUME FROM
RECYCLED PLANT WASTE COMPRISED OF YARD DEBRIS, CROP RESIDUES,
AND BULKING AGENTS, AND MEET THE DEFINITION OF "COMPOSTED
MATERIAL" IN WAC 173-350-100. COMPOST SHALL HAVE A MOISTURE CONTENT
THAT HAS NO VISIBLE FREE WATER OR DUST PRODUCED WHEN HANDLING
THE MATERIAL. COMPOST SHALL HAVE AN ORGANIC MATTER CONTENT OF 40
PERCENT TO 65 PERCENT BY DRY WEIGHT, A CARBON TO NITROGEN RATIO
BELOW 25:1, AND A pH BETWEEN 6.0 AND 8.0
TABLE: COMPOST GRADATION
SIEVE SIZE MIN. PERCENT PASSING
2-INCH 100 PERCENT
1-INCH 99 PERCENT
5/8-INCH 90 PERCENT
1/4-INCH 75 PERCENT
ABORIST WOOD CHIP MULCH
ARBORIST WOOD CHIP MULCH SHALL BE COARSE GROUND WOOD
CHIPS (APPROXIMATELY 1/2" TO 6" ALONG THE LONGEST DIMENSION)
DERIVED FROM THE MECHANICAL GRINDING OR SHREDDING OF THE
ABOVE-GROUND PORTIONS OF TREES. IT MAY CONTAIN WOOD, WOOD
FIBER, BARK, BRANCHES, AND LEAVES, BUT MAY NOT CONTAIN
WEEDS, WEED SEEDS, OR VISIBLE AMOUNTS OF SOIL.
TABLE: ARBORIST WOOD CHIP MULCH GRADATION
SIEVE SIZE PERCENT PASSING
6-INCH 100 PERCENT
2-INCH 95 TO 100 PERCENT
1-INCH 70 TO 100 PERCENT
5/8-INCH 0 TO 50 PERCENT
U.S. NO. 4 0 TO 30 PERCENT
MINERAL AGGREGATE FOR BIORETENTION SOIL
MINERAL AGGREGATE FOR BIORETENTION SOIL MUST BE FREE OF WOOD,
WASTE, COATING, OR ANY OTHER DELETERIOUS MATERIAL, AND ALL
AGGREGATE PASSING THE NO. 200 SIEVE SIZE MUST BE NON-PLASTIC.
MINERAL AGGREGATE MUST BE ANALYZED BY AN ACCREDITED LAB USING
THE SIEVE SIZES NOTED IN THE TABLE TO THE LEFT, AND MUST MEET THE
REQUIRED GRADATIONS.
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
PLAN
HOUSE
HOUSE
FLOW
2% SLOPE (1% MIN.)
4" CAPPED PVC OR GRATE INLET
AT SURFACE FOR OBSERVATION
ROOF DOWNSPOUT
OVERFLOW
SPLASH BLOCK
FINE MESH SCREEN, SS
304 10x10 OR SIMILAR
6" DIA.MIN. PVC,
SDR 35 PER ASTM D3034
SIDES AND TOP OF ROCK LINED WITH
NON-WOVEN GEOTEXTILE FOR
SEPARATION PER WSDOT 9-33.2(1)
CATCH BASIN
(YARD DRAIN)
ROOF
DOWNSPOUT MIN. 12" X 12"
CATCH BASIN
(YARD DRAIN)
DRYWELL
SOLID LID
OR GRATE
MIN. 50 GALLON PLASTIC
OR CONCRETE DRYWELL
15' MIN. AS REQUIRED,
SEE NOTE 1
12'' MIN.
TOPSOIL
12" MIN. ABOVE SEASONAL
HIGH GROUNDWATER OR
HYDRAULICALLY
RESTRICTIVE LAYER
5' MIN. SETBACK FROM
BUILDING
12'' MIN.
SUMP
24"
MIN.
24"
MIN.
GENERAL NOTES:
1.WHEN LOCATED IN COARSE SANDS AND COBBLES, DRYWELLS MUST CONTAIN A VOLUME OF GRAVEL EQUAL TO OR GREATER THAN 60 CUBIC FEET PER 1,000 SQUARE
FEET OF IMPERVIOUS SURFACE SERVED. WHEN LOCATED IN MEDIUM SANDS, DRYWELLS MUST CONTAIN AT LEAST 90 CUBIC FEET OF GRAVEL PER 1,000 SQUARE FEET
OF IMPERVIOUS SURFACE SERVED.
2.SPACING BETWEEN DRYWELLS SHALL BE A MINIMUM OF 10 FEET.
3.REGULAR MAINTENANCE INCLUDING CATCH BASIN (YARD DRAIN) CLEANING (EVERY 6 MONTHS MINIMUM) IS ESSENTIAL TO THE LONG-TERM FUNCTIONING OF
DRYWELLS.
4.CONNECT INLET PIPE TO CONCRETE DRYWELL USING PRECAST HOLE OR CORE DRILLED HOLE.
5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
48" MIN. DIA.
SPLASH BLOCK
SECTION
48" MIN.
NOTES:
1.DRYWELLS MUST BE SET BACK AT LEAST 15 FEET FROM
BUILDINGS WITH CRAWL SPACE OR BASEMENT ELEVATIONS THAT
ARE BELOW THE OVERFLOW POINT OF THE DRYWELL.
3/4" - 1 1/2" WASHED
DRAIN ROCK OR
GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT
STD. SPECIFICATION
SECTION 9-03.12(5).
DRYWELL PLAN AND SECTION
STD. PLAN - 263.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
WIDTH ≤ 25 FT FOR
A 100-FT NVFS
WIDTH ≤ 50 FT FOR
A 200-FT NVFS
ROCK STRIP TO BE 2' WIDE BY MIN.
4" THICK. 3/4" - 1 1/2" WASHED DRAIN
ROCK OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(5).
EDGE OF UNDISTURBED NATIVE
VEGETATION
SHEET FLOW
≤ 5%
SLOPE ≤ 15% SLOPE
100 FT MIN.
NATIVE VEGETATED
FLOWPATH SEGMENT
(NVFS)
IMPERVIOUS SURFACE
PERVIOUS SURFACE
GENERAL NOTES:
1.ALL TREES WITHIN THE NATIVE GROWTH RETENTION AREA AT THE TIME OF PERMIT
APPLICATION SHALL BE RETAINED, ASIDE FROM APPROVED TIMBER HARVEST ACTIVITIES AND
THE REMOVAL OF DANGEROUS AND DISEASED TREES.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
FULL DISPERSION SHEET FLOW -
FLAT/MODERATE SLOPE DRIVEWAYS
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 263.10
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT
STREET 340'RIGHT-OF-WAY345'350'335'ASPHALT BERM DETAIL
175'170'STREETRIGHT-OF-WAYDRIVEWAY
SLOPE
PLAN - DRIVEWAY DISPERSION TRENCH
DRIVEWAY SLOPE VARIES AND SLOPES TOWARD STREET (<15%)
25' MIN.
700 SQ FT MAX.
BETWEEN BERMS, SEE NOTE 1
MIN. 2%
CROSS
SLOPE
6" MIN.
PLAN - SHEET FLOW DISPERSION FROM A DRIVEWAY
FLAT TO MODERATELY SLOPING DRIVEWAYS (<15%)
2-4"
DRIVEWAY
SLOPE
ROCK STRIP TO BE 2'
WIDE BY MIN. 4'' THICK.
3/4" - 1 1/2" WASHED
DRAIN ROCK OR
GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT
STD. SPECIFICATION
SECTION 9-03.12(5).
10'
MIN.
GENERAL NOTES:
1.MAXIMUM VEGETATED FLOWPATH SLOPE IS 15% FOR ANY
20-FOOT REACH, AND MAY NOT EXCEED 20%.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT
REQUIREMENTS.
DISPERSION TRENCH DETAIL
24'' MIN.
UNDISTURBED
NATIVE SOIL
2'' X 6'' UNTREATED
CEDAR OR
RECYCLED PLASTIC
BOARD
DIAGONAL ASPHALT
BERM, SEE NOTE 3
DISPERSION
TRENCHCRUSHED
ROCK OR GRAVEL
1" DROP
18" MIN.
6" MIN.
3/4" - 1 1/2" WASHED DRAIN ROCK
OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(5)
6" DIA. MIN.
PERFORATED PVC,
SDR 35 PER ASTM D3034
6'' MIN.
25'
VEGETATED
FLOWPATH, SEE
NOTE 4
10'
MIN.
10' VEGETATED
FLOWPATH SEGMENT
20' MAX. WIDTH,
SEE NOTE 2
NOTES:
1.SEE STD. PLAN 224.00 FOR ALTERNATE DISPERSION
TRENCH IF CONTRIBUTING AREA EXCEEDS 700 SF. USE
10 LF OF TRENCH WITH NOTCH BOARD PER 700 SF TO
MAX. 50 LF OF TRENCH.
2.20' MAX. WIDTH OF CONTRIBUTING IMPERVIOUS
SURFACE FOR SHEET FLOW DISPERSION, UNLESS
VEGETATED FLOWPATH IS INCREASED BY 10' FOR EACH
ADDITIONAL 20' OF CONTRIBUTING SURFACE AREA.
3.SLOT DRAINS OR ASPHALT BERMS MAY BE USED TO
DIRECT RUNOFF TO ROCK PADS OR DISPERSION
TRENCHES IN VARIOUS CONFIGURATIONS. LAYOUTS
SHOWN ARE ONLY EXAMPLES.
4.IF DISCHARGE IS TOWARD A STEEP SLOPE HAZARD
AREA OR A LANDSLIDE HAZARD STEEPER THAN 15%,
VEGETATED FLOWPATH MUST BE 50 FEET.
NON-WOVEN GEOTEXTILE
FOR SEPARATION PER
WSDOT SPECIFICATIONS
SECTION 9-33.2(1) TABLE 3
25' MIN.
BASIC DISPERSION - FLAT/MODERATE
SLOPE DRIVEWAYS
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 263.20
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
GENERAL NOTES:
1.MAXIMUM VEGETATED FLOWPATH SLOPE IS 15% FOR ANY 20-FOOT REACH,
AND MAY NOT EXCEED 20%.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.RIGHT-OF-WAYDRIVEWAY SLOPE
125'120'115'110'105'RIGHT-OF-WAY250'245'240'235'2" TO 4"
ASPHALT BERM DETAIL
PLAN - STEEP DRIVEWAY WITH DIAGONAL BERMS (≥15%)
PLAN - STEEP DRIVEWAY WITH SLOTTED DRAINS (≥15%)
10' MIN.
DISPERSION
TRENCH
DISPERSION TRENCH DETAIL
24'' MIN.
UNDISTURBED
NATIVE SOIL
2'' X 6'' UNTREATED CEDAR OR
RECYCLED PLASTIC BOARD
CRUSHED ROCK OR
GRAVEL
1" DROP
18" MIN.
6" MIN.
3/4" - 1 1/2" WASHED DRAIN ROCK
OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(5)
6" DIA. MIN.
PERFORATED PVC,
SDR 35 PER ASTM D3034
6'' MIN.
25' MIN.
VEGETATED
FLOWPATH,
SEE NOTE 2
NO OVERLAP
OF
FLOWPATHS
2'x3'x6" MIN. ROCK
PAD, SEE NOTE 3
50' MIN.
VEGETATED
FLOWPATH
10' MIN.
25' MIN.
VEGETATED
FLOWPATH,
SEE NOTE 2
NO OVERLAP OF
FLOWPATH SEGMENTS
25' MIN.
VEGETATED
FLOWPATH,
SEE NOTE 2
6" MIN.
DRIVEWAY SLOPE STREETSLOT DRAIN,
SEE NOTE 4
700 SQ. FT. MAX.
BETWEEN DRAINS, SEE NOTE 1
700 SQ FT MAX.
BETWEEN BERMS,
SEE NOTE 1 STREETDIAGONAL ASPHALT
BERM, SEE NOTE 4
AREA DRAIN,
SEE NOTE 5
NOTES:
1.SEE STD. PLAN 224.00 FOR ALTERNATE DISPERSION TRENCH IF
CONTRIBUTING AREA EXCEEDS 700 SF. USE 10 LF OF TRENCH WITH
NOTCH BOARD PER 700 SF TO MAX. 50 LF OF TRENCH.
2.IF DISCHARGE IS TOWARD A STEEP SLOPE HAZARD AREA OR A LANDSLIDE
HAZARD STEEPER THAN 15%, VEGETATED FLOWPATH MUST BE 50 FEET.
3.MATERIAL FOR ROCK PAD TO BE 3/4" - 1 1/2" WASHED DRAIN ROCK OR
GRAVEL BACKFILL FOR DRYWELLS PER WSDOT STD. SPECIFICATION
SECTION 9-03.12(5)..
4.SLOT DRAINS OR ASPHALT BERMS MAY BE USED TO DIRECT RUNOFF TO
ROCK PADS OR DISPERSION TRENCHES IN VARIOUS CONFIGURATIONS.
LAYOUTS SHOWN ARE ONLY EXAMPLES.
5.MIN. 12"x12" AREA (YARD) DRAIN. DOWNSTREAM CONNECTED PIPE TO BE
6" DIA. MIN. PVC, SDR 35 PER ASTM D3034, SLOPED AT 1% MIN.
NON-WOVEN GEOTEXTILE FOR
SEPARATION PER WSDOT
SPECIFICATIONS SECTION
9-33.2(1) TABLE 3
25' MIN.
DISPERSION
TRENCH
25' MIN.
BASIC DISPERSION - STEEP SLOPE
DRIVEWAYS
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 263.30
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
PLAN VIEW OF PARCEL
TO STORM DRAIN SYSTEMRIGHT-OF-WAYGENERAL NOTES:
1.INFILTRATION TRENCHES LIMITED TO ROOF RUNOFF FROM SINGLE-FAMILY OR DUPLEX HOMES OR TO CONTROL
BASEMENT FLOODING. CONSULT WA DEPARTMENT OF ECOLOGY REGULATIONS FOR UNDERGROUND INJECTION
CONTROL PROGRAM (UIC) FOR OTHER TYPES OF RUNOFF MANAGEMENT.
2.IMPERVIOUS AREAS LARGER THAN 10,000 SF AND NON-NATIVE PERVIOUS AREAS LARGER THAN 35,000 SF MAY REQUIRE
LARGER PIPE AND SHOULD BE DESIGNED BY A CIVIL ENGINEER.
3.THE PERFORATED PIPE MAY NOT BE PLACED IN A CRITICAL AREA BUFFER OR ON SLOPES STEEPER THAN 25%.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
24" MIN.
18" MIN.
MIN. 1' ABOVE SEASONAL HIGH
GROUNDWATER TABLE
6" MIN.
3/4" - 1 1/2" WASHED DRAIN ROCK
OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(5)
NON-WOVEN GEOTEXTILE FOR SEPARATION
ON TOP AND SIDES OF TRENCH PER WSDOT
SPECIFICATIONS SECTION 9-33.2(1) TABLE 3
COMPACTED TOPSOIL OR OTHER CLEAN FILL
6" DIA. MIN.
PERFORATED PVC,
SDR 35 PER ASTM D3034
10' MIN. LEVEL TRENCH WITH
PERFORATED PIPE, SEE NOTE 1
DOWNSPOUT WITH CLEANOUT
FILTER, SEE DETAIL ASECTION A
NOTES:
1.TRENCH LENGTH TO BE 10 FEET IN LENGTH FOR EVERY 5,000 SF OF CONTRIBUTING IMPERVIOUS SURFACE, OR 35,000 SF
OF NON-NATIVE PERVIOUS SURFACE, OR PORTION THEREOF.
5'
MIN.
5'
MIN.
TO STORM DRAIN SYSTEM
5'
MIN.
5'
MIN.
A
DOWNSPOUT WITH CLEANOUT FILTER, SEE DETAIL
10' MIN. LEVEL TRENCH WITH
PERFORATED PIPE, SEE NOTE 1
CONFIGURATION ON FLAT GROUND
CONFIGURATION ON SLOPING GROUND
UNDISTURBED NATIVE SOIL
CLEANOUT PER STD. PLAN 226.00
CLEANOUT PER
STD. PLAN 226.00
FILTER SCREEN
2'-5' TO
GROUND
SOLIDS/
LEAVES
TYPICAL DOWNSPOUT
FILTER DETAIL
FOOTING DRAIN BYPASS
CLEANOUT PER
STD. PLAN 226.00
PERFORATED STUB-OUT
CONNECTION
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 263.40
DocuSign Envelope ID: A9707D3B-A0EF-441F-8140-2CDB48E878CA
11/2/2020 | 1:04 PM PST
OPTION 5 - IMPORTED TOPSOIL
OPTIONS 2, 3, AND 4 - AMEND IN PLACE OR STOCKPILE AND AMEND
3"-4" ARBORIST WOOD CHIP MULCH,
SEE STD. PLAN 262.60
SUBSOIL SCARIFIED 4" BELOW
COMPOST AMENDED LAYER
(12" BELOW SOIL SURFACE)
GRASS: SEED OR SOD
1.75" OF COMPOST INCORPORATED INTO
6.25" OF SITE SOIL (TOTAL AMENDED DEPTH
OF 9.5", FOR A SETTLED DEPTH OF 8")
SUBSOIL SCARIFIED 4" BELOW
COMPOST AMENDED LAYER
(12" BELOW SOIL SURFACE)
PLANTING BEDS TURF (LAWN) AREAS
0"
8"
12"
3"-4" ARBORIST
WOOD CHIP
MULCH, SEE STD.
PLAN 262.60
SUBSOIL IS
SCARIFIED 6"
BELOW IMPORTED
TOPSOIL MIX
GRASS: SEED OR SOD
6" IMPORTED
TOPSOIL MIX
(COMPACTED
DEPTH)
SUBSOIL IS
SCARIFIED 6"
BELOW IMPORTED
TOPSOIL MIX
0"
6"
12"
PLANTING BEDS TURF (LAWN) AREAS
3" OF COMPOST INCORPORATED
INTO 5" OF SITE SOIL (TOTAL
AMENDED DEPTH OF 9.5", FOR A
SETTLED DEPTH OF 8")
GRASS: SEED OR SOD
PLANTING BEDS/UNDISTURBED
VEGETATION, SEE NOTE 1
UNDISTURBED TURF (LAWN) AREAS,
SEE NOTE 1
0"
OPTION 1 - NO DISTURBANCE
UNDISTURBED NATIVE SOIL UNDISTURBED NATIVE SOIL
6" IMPORTED
TOPSOIL MIX
(COMPACTED
DEPTH)
GENERAL NOTES:
1.TO MEASURE SETTLED DEPTH, WATER SOIL
SUFFICIENTLY TO FULLY SATURATE WITHOUT
CAUSING EROSION
2.COMPOST TO MEET STD. PLAN 262.60.
3.COMPACTION OF TOPSOIL (WHERE REQUIRED)
TO BE TO 85% OF STANDARD PROCTOR.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC
PROJECT REQUIREMENTS.
UNDISTURBED
NATIVE VEGETATION
NOTES:
1.AREAS OF NO DISTURBANCE TO BE FENCED
AND EXISTING VEGETATION AND SOIL TO BE
PROTECTED FROM CONSTRUCTION IMPACTS.
SOIL AMENDMENT SECTIONS
STD. PLAN - 264.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT
GENERAL NOTES:1.ABANDONED UTILITIES WITHIN FOOTPRINT OF FACILITY AND OBSERVED DURING CONSTRUCTION MUST BE REMOVED. COORDINATE WITH MUNICIPAL OR PRIVATE OWNER AND ENGINEER.2.HORIZONTAL SEPARATION BETWEEN WATER MAIN WALL AND TOP OF SLOPE OF THE BIORETENTION FACILITY SHALL BE NO LESS THAN 7 FEET.3.FIRE HYDRANTS SHALL BE AT LEAST 5 FEET FROM BIORETENTION FACILITY FOOTPRINT.4.WATER METER SHALL BE LOCATED OUTSIDE BIORETENTION FACILITY FOOTPRINT.5.MANHOLES SHALL BE LOCATED OUTSIDE BIORETENTION FACILITY FOOTPRINT.6.A MINIMUM OF 1 FOOT SEPARATION BETWEEN SANITARY SEWER CROSSINGS AND UNDERDRAINS SHALL BE MAINTAINED.7.UTILITY SERVICE AND UTILITY MAIN CROSSINGS SHALL BE MADE PERPENDICULAR TO THE BIORETENTION FACILITY.8.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.1' MIN. CURB CUT TOEDGE OF CATCH BASINA,B,C265.10UTILITY MAINCROSSINGCATCH BASINUTILITY SERVICECROSSINGOPTIONAL UTILITY TRENCH DAM (TYP.),DESIGNER TO SPECIFYBIORETENTION FACILITYD
265.10UTILITY CROSSINGS - BIORETENTIONSTD. PLAN - 265.00PUBLIC WORKSDEPARTMENTAPPROVED:DATEGregg ZimmermanPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA6388789/28/2018 | 9:45 AM PDT
SCALE:SECTION - SHALLOW UTILITY SERVICEUNDER BIORETENTION FACILITYA265.00NTSEMBED LINER 3" MIN.INTO NATIVE SOILEXISTING UTILITY SERVICE TOREMAIN IN PLACE, SEE NOTE 1NATIVE SOIL,SEE NOTE 2EXISTING UTILITY SERVICE TOREMAIN IN PLACE, SEE NOTE 1NATIVE SOIL, SEE NOTE 2UTILITY SERVICEPIPE CASING PER STD. PLAN 412GENERAL NOTES:1.ANY DISCREPANCIES BETWEEN THE EXISTING UTILITIES SHOWN IN THE DESIGN DRAWINGS AND THE ACTUAL FIELD CONDITIONS SHOULD BE COMMUNICATED TO THE ENGINEER IMMEDIATELY.2.UTILITY MAINS SHALL NOT BE SUBJECT TO LOADING FROM NEW CURBS/WALLS. LOAD BEARING LINES TO BE DETERMINED BY THE GEOTECHNICAL ENGINEER.3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.DESIGNER TOSPECIFY MIN. PIPECOVER AS REQUIREDBY UTILITY PROVIDER,30" MIN.DESIGNER TO SPECIFY MIN. PIPE COVER ASREQUIRED BY UTILITYPROVIDER, 30" MIN.12" MIN.DESIGNER TO SPECIFYMIN. CLEARANCEAROUND UTILITY, SEE NOTE 3EMBED LINER 3" MIN.INTO NATIVE SOILEXISTING UTILITY MAIN TOREMAIN IN PLACE, SEE NOTE 1NATIVE SOIL,SEE NOTE 2DESIGNER TO SPECIFYMIN. CLEARANCE AROUNDUTILITY, SEE NOTE 3DESIGNER TOSPECIFY MIN. PIPECOVER AS REQUIREDBY UTILITY PROVIDER,30" MIN.30 MIL MIN. GEOMEMBRANELINER30 MIL MIN. GEOMEMBRANELINERDESIGNER TOSPECIFY MIN. PIPECOVER AS REQUIREDBY UTILITY PROVIDER,30" MIN.30 MIL MIN. GEOMEMBRANELINERSCALE:SECTION - SHALLOW UTILITY SERVICEWITHIN BIORETENTION FACILITYB265.00NTSSCALE:SECTION - ENCASED UTILITY SERVICEWITHIN BIORETENTION FACILITYC265.00NTSSCALE:SECTION - SHALLOW UTILITY MAINWITHIN BIORETENTION FACILITYD265.00NTSNOTES:1.CONTRACTOR SHALL LOCATE AND DETERMINE DEPTH OF EXISTING UTILITY WITHIN THE FOOTPRINT OF THE BIORETENTION FACILITY WHILE LIMITING THE AMOUNT OF DISTURBANCE TO THE SOIL/BACKFILL MATERIAL OVER ANDAROUND THE UTILITY PIPE. IF ELECTROMAGNETIC UTILITY LOCATING, POTHOLING, OR OTHER METHOD REVEALS THAT THE UTILITY PIPE DOES NOT MEET THE REQUIRED CLEARANCE FROM THE BOTTOM OF THE BIORETENTIONFACILITY, THE UTILITY PROVIDER MAY REQUIRE IMPLEMENTATION OF PROTECTION MEASURES THAT EXCEED STANDARDS SHOWN PER THEIR OWN STANDARDS OR REQUIRE THE EXISTING UTILITY TO BE RELOCATED OUT OFTHE BIORETENTION SECTION.2.EXISTING UTILITIES AND NATIVE SOIL AROUND EXISTING UTILITIES SHOULD REMAIN IN PLACE WHERE POSSIBLE. IF A PORTION OR ALL OF THE UTILITY IS UNCOVERED DURING EXCAVATION OR EXISTING SOIL WITHIN 1 FOOT OFTHE KNOWN EXISTING UTILITY IS SCARIFIED, NATIVE SOIL OR APPROVED ENGINEERED BACKFILL SHALL BE CAREFULLY PLACED AND COMPACTED AROUND THE UTILITY PER THE UTILITY PROVIDER'S REQUIREMENTS.3.PROVIDE THE MINIMUM CLEARANCE AROUND THE UTILITY SERVICE OR MAIN AND SETBACKS FROM STRUCTURAL ELEMENTS (I.E. CATCH BASINS, MANHOLES, VAULTS, ETC.) PER THE UTILITY PROVIDER'S REQUIREMENTS.VERIFY MIN. SEPARATION TOBOTTOM OF FACILITY, SEE NOTE 3PUBLIC WORKSDEPARTMENTAPPROVED:DATEGregg ZimmermanPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)UTILITY CROSSINGS - BIORETENTION SECTIONSSTD. PLAN - 265.10DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA6388789/28/2018 | 9:45 AM PDT
PLANPERVIOUS CONCRETE/POROUS ASPHALTCONCRETE FOOTING,DESIGNER TO SPECIFYROADWAYCURBSETBACK PERCITY STANDARDSUTILITY POLEPER CITYSTANDARDSUTILITY POLE PERCITY STANDARDSCONCRETE FOUNDATION,DESIGNER TO SPECIFYCURBROADWAYUTILITY POLE, PERCITY STANDARDSCONCRETE FOOTING,DESIGNER TO SPECIFYROADWAYBIORETENTIONFACILITY (TYP.)UTILITY POLE PER CITYSTANDARDSSCARIFIED AND UNCOMPACTEDSUBGRADE FOR INFILTRATINGFACILITIES, SEE NOTE 1SET AT OR ABOVEDESIGN PONDINGELEVATIONEXPANSION JOINTEXPANSIONJOINT (TYP.)NOTES:1.AVOID COMPACTION OF EXISTING SUBGRADE BELOW INFILTRATINGPERMEABLE PAVEMENT OR BIORETENTION FACILITIES DURINGCONSTRUCTION.2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.SETBACK PERCITY STANDARDSROADWAYCONCRETE FOOTING,DESIGNER TO SPECIFYEDGE TREATMENT, SEESTD. PLAN 262.20SECTION AEDGE TREATMENT, SEESTD. PLAN 262.20PLANSECTION BABUTILITY POLE AT PERVIOUSCONCRETE/POROUS ASPHALTUTILITY POLE AT BIORETENTION FACILITYPERMEABLEPAVEMENTPAVEMENT FLUSHWITH FOOTING, (TYP.)SCARIFIED ANDUNCOMPACTEDSUBGRADE FORINFILTRATINGFACILITIES, SEE NOTE 1PUBLIC WORKSDEPARTMENTAPPROVED:DATEGregg ZimmermanPublic Works AdministratorUNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)UTILITY CONFLICTS - UTILITY POLESSTD. PLAN - 265.20DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA6388789/28/2018 | 9:45 AM PDT
CCTV INSPECTION SPECIFICATIONS
STD. PLAN - 266.00
GENERAL NOTES:
1.ALL NEWLY-INSTALLED AND NEWLY-REHABILITATED (PUBLIC AND PRIVATE) SANITARY SEWER AND STORM DRAIN MAIN LINES SHALL BE
INSPECTED BY MEANS OF REMOTE CCTV. CCTV INSPECTIONS AND REPORTS SHALL BE SUBMITTED TO THE CITY OF RENTON INSPECTOR
ASSIGNED TO THE PROJECT PRIOR TO RECEIVING APPROVAL TO INSTALL PROJECT CURBS, GUTTERS, AND/OR PAVEMENT.
2.THE CONTRACTOR SHALL PERFORM ALL CCTV INSPECTIONS IN ACCORDANCE WITH THE NATIONAL ASSOCIATION OF SEWER SERVICE
COMPANIES (NASSCO) PIPELINE ASSESSMENT CERTIFICATION PROGRAM (PACP).
3.ALL CCTV OPERATORS SHALL HAVE CURRENT NASSCO PACP CERTIFICATION.
4.CCTV INSPECTIONS SHALL BE RECORDED IN A GRANITENET COMPATIBLE FORMAT DATABASE USING THE LATEST SOFTWARE VERSION
AND SUBMITTED WITH ELECTRONIC LINKS BETWEEN THE DATA AND THE VIDEO ON AN EXTERNAL HDD, DVD, OR FLASH DRIVE.
5.ALL CCTV INSPECTION REPORTS SHALL BE WITHIN +/- TWO (2) FEET OF THE MEASURED LINEAR FOOTAGE BETWEEN MANHOLES ALONG
THE EXISTING PIPELINE CENTERLINE FROM THE START OF PIPE TO END OF PIPE.
6.ALL OWNER AND PACP REQUIRED HEADER INFORMATION MUST BE FULLY AND ACCURATELY ENTERED ON ALL CCTV REPORTS. WORK NOT
FOLLOWING THESE SPECIFICATIONS WILL BE REJECTED AND THE CONTRACTOR SHALL BE REQUIRED TO RE-CCTV THE WORK.
7.THE DOCUMENTATION OF THE WORK SHALL CONSIST OF PACP CCTV REPORTS, PACP DATABASE, LOGS, ELECTRONIC REPORTS, ETC.
NOTING IMPORTANT FEATURES ENCOUNTERED DURING THE INSPECTION. THE SPEED OF TRAVEL SHALL BE SLOW ENOUGH TO INSPECT
EACH PIPE JOINT, TEE CONNECTION, STRUCTURAL DETERIORATION, INFILTRATION AND INFLOW SOURCES, AND DEPOSITS, BUT SHOULD
NOT, AT ANY TIME, BE FASTER THAN 30 FEET PER MINUTE, EXCEPT AS NOTED OTHERWISE IN THIS DOCUMENT.
8.THE CAMERA MUST BE CENTERED IN THE PIPE TO PROVIDE ACCURATE DISTANCE MEASUREMENTS TO PROVIDE LOCATIONS OF FEATURES
IN THE SEWER AND THESE FOOTAGE MEASUREMENTS SHALL BE DISPLAYED AND DOCUMENTED ON THE VIDEO. ALL PACP OBSERVATIONS
SHALL BE IDENTIFIED BY AUDIO AND ON A PACP LOG. ALL VIDEO MUST BE CONTINUOUSLY METERED FROM MANHOLE TO MANHOLE. ALL
VIDEO RECORDING SHALL BE CONTINUOUS FROM STRUCTURE TO STRUCTURE WITH NO "PAUSING" OF THE VIDEO RECORDING DURING
EACH PIPELINE INSPECTION. THE PIPE SHALL BE CLEANED PRIOR TO THE CCTV INSPECTION TO ENSURE ALL DEFECTS, FEATURE, AND
OBSERVATIONS ARE SEEN AND LOGGED.
9.JUST PRIOR TO BEGINNING THE CCTV INSPECTION, WHILE THE CCTV CAMERA IS IN PLACE AND RECORDING, WATER (CONTAINING DYE)
SHALL BE INTRODUCED INTO THE UPSTREAM MANHOLE OF EACH PIPE SEGMENT UNTIL IT IS OBSERVED AND RECORDED FLOWING PAST
THE CAMERA'S FIELD OF VISION IN ITS ENTIRETY.
10.THE CCTV CAMERA SHALL HAVE A WATER-LEVEL MEASURING DEVICE (BALL, CYLINDER, ETC.) ATTACHED THAT HAS 1/4" MARKINGS TO
SHOW THE DEPTH OF WATER IN THE PIPE DURING THE CCTV INSPECTION.
11.ALL MANHOLES SHALL BE CHANNELED AND COATED PRIOR TO CCTV INSPECTION.
12.PER CITY OF RENTON SPECIFICATION 7-08.3(2)B, SEWER AND STORM DRAIN PIPELINE SHALL HAVE NO MORE THAN 1/2" OF PONDING TO BE
CONSIDERED ACCEPTABLE.
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
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SURFACE WATER STANDARD PLAN
NOTES (1 OF 2)
STD. PLAN - 267.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
SURFACE WATER STANDARD PLAN NOTES:
THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE DRAINAGE PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY
PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE
APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE
SURFACE WATER STANDARD PLAN NOTES.
1.BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE-CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY
REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR.
2.THE APPLICANT SHALL BE RESPONSIBLE FOR SECURING ALL NECESSARY CITY, STATE, AND FEDERAL PERMITS PRIOR TO CONSTRUCTION.
3.ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF RENTON SURFACE
WATER DESIGN MANUAL (RENTON SWDM), RENTON MUNICIPAL CODE (RMC), AND THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL
CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA). IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT TO
CORRECT ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO
THE CITY.
4.APPROVAL OF THE ROAD, GRADING, PARKING, BUILDING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AS APPROVAL OF ANY OTHER CONSTRUCTION (E.G. WATER,
SEWER, GAS, ELECTRICAL. ETC.). PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY
THE CITY PRIOR TO CONSTRUCTION. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS. ANY DEVIATION
FROM THE APPROVED PLANS WILL REQUIRE COORDINATION FOLLOWED BY WRITTEN APPROVAL FROM THE CITY.
5.A COPY OF THE APPROVED PLANS SHALL BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS.
6.THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY FIELD SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHALL
THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY COMPLETE. IT IS THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE APPLICANT'S
CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN, AND TO FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT
SHOWN HEREON THAT MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN. THE APPLICANT SHALL RECORD ON THE AS-BUILT DRAWINGS ALL
UNDOCUMENTED UTILITIES DISCOVERED AND ANY CHANGES TO THE APPROVED PLANS. THE APPLICANT SHALL IMMEDIATELY NOTIFY THE ENGINEER OF RECORD IF A
CONFLICT EXISTS.
7.VERTICAL DATUM SHALL BE NAVD 88 AND HORIZONTAL DATUM SHALL BE NAD 83 (WA STATE PLANE, NORTH), UNLESS OTHERWISE APPROVED BY THE CITY.
REFERENCE BENCHMARK, DATUM, AND ELEVATIONS SHALL BE NOTED ON THE PLANS.
8.ALL UTILITY TRENCH BACKFILL AND ROADWAY SUBGRADE SHALL BE COMPACTED TO 95% MAXIMUM DRY DENSITY PER SECTION 2-03.3(14)D - COMPACTION AND
MOISTURE CONTROL TESTS OF THE WSDOT STANDARD SPECIFICATIONS. IN PERMEABLE PAVEMENT AND OTHER INFILTRATION AREAS, ALL TRENCH BACKFILL SHALL
BE FIRM AND UNYIELDING BUT IN NO CASE SHALL BE COMPACTED TO MORE THAN 92% OF MAXIMUM DRY DENSITY.
9.OPEN CUTTING OF EXISTING ROADWAYS FOR STORM DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY AND NOTED ON THESE
APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH THE CITY TRENCH RESTORATION STANDARDS.
10.ALL PIPE AND STRUCTURES SHALL BE STAKED FOR SURVEY LINE AND GRADE PRIOR TO THE START OF CONSTRUCTION. WHERE SHOWN ON THE PLANS OR WHERE
DIRECTED BY THE CITY, THE EXISTING MANHOLES, CATCH BASINS, OR INLETS SHALL BE ADJUSTED TO THE GRADE AS STAKED.
11.ALL FLOW CONTROL FACILITIES SHALL BE INSTALLED AND IN OPERATION PRIOR TO, OR IN CONJUNCTION WITH, ANY CONSTRUCTION ACTIVITY UNLESS OTHERWISE
APPROVED BY THE CITY.
12.ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH THE CURRENT STATE OF WASHINGTON STANDARD
SPECIFICATION FOR ROAD AND BRIDGE CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE FOUNDATION
MATERIAL, AS WELL AS PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE
SUPPORTED ON A UNIFORMLY DENSE, UNYIELDING BASE. ALL PIPE BEDDING AND BACKFILL SHALL BE AS SHOWN ON THE CITY STANDARD PLAN 220.00, 220.10, AND
220.20.
13.STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT TREATMENT 1, 2, OR 5 INSIDE AND OUTSIDE.
14.ALL DRAINAGE STRUCTURES SUCH AS CATCH BASINS AND MANHOLES SHALL BE FITTED WITH DUCTILE IRON, BOLT-LOCKING LIDS PER THE CITY STANDARD PLAN
204.10, 204.20, 204.30, 204.40, AND 204.50. STRUCTURES SHALL HAVE:
·RECTANGULAR OR ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND OUTSIDE OF THE ROADWAY.
·ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND LOCATED WITHIN THE ROADWAY, BUT OUTSIDE OF THE CURB/GUTTER LINE.
·ROUND, SOLID LIDS DISPLAYING THE CITY LOGO WHEN WITHIN THE PUBLIC RIGHT-OF-WAY OR IN AN EASEMENT TO THE CITY. PRIVATE STRUCTURE LIDS OUTSIDE
PUBLIC RIGHT-OF-WAY AND EASEMENTS TO THE CITY SHALL NOT DISPLAY THE CITY LOGO.
15.BUILDINGS AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1 EASEMENT WIDTHS AND BUILDING SETBACKS LINES OF THE RENTON SWDM.
16.LIDS OF MANHOLES/CATCH BASINS WITHIN PUBLIC RIGHT-OF-WAY SHALL NOT BE ADJUSTED TO FINAL GRADE UNTIL AFTER PAVING. ALL MANHOLE/CATCH BASIN RIMS
SHALL BE ADJUSTED TO BE FLUSH WITH FINAL FINISHED GRADES, UNLESS OTHERWISE SHOWN.
17.ALL DRIVEWAY CULVERTS LOCATED WITHIN CITY RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE
DRIVEWAY TO THE BOTTOM OF THE DITCH.
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SURFACE WATER STANDARD PLAN
NOTES (2 OF 2)
STD. PLAN - 267.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE DRAINAGE PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY
PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE
APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE
SURFACE WATER STANDARD PLAN NOTES.
18.ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY ROCK PLACED TO A MINIMUM DEPTH OF ONE (1) FOOT
AND SHALL MEET THE FOLLOWING SPECIFICATIONS:
·4 - 8 INCH ROCK / 40 - 70% PASSING;
·2 - 4 INCH ROCK / 30 - 40% PASSING; AND
·LESS THAN 2 INCH ROCK / 10 - 20% PASSING.
19.FOOTING DRAINAGE SYSTEMS AND ROOF DOWNSPOUT SYSTEMS SHALL NOT BE INTERCONNECTED AND SHALL SEPARATELY CONVEY COLLECTED FLOWS TO THE
CONVEYANCE SYSTEM OR FLOW CONTROL FACILITY ON THE SITE, UNLESS APPROVED BY THE CITY. FOOTING DRAINS SHALL NOT BE CONNECTED TO ON-SITE BMPS.
20.THE END OF EACH STORM DRAIN STUB SHALL BE CAPPED. A CLEANOUT TOPPED WITH A BOLT-LOCKING LID MARKED "STORM” OR "DRAIN" SHALL BE LOCATED AT THE
PROPERTY LINE OR AT THE POINT OF CONNECTION OF A PRIVATE STORM DRAINAGE CONVEYANCE SYSTEM PER THE CITY STANDARD PLAN 227.00.
21.ALL STORM SYSTEM EXTENSIONS SHALL BE STAKED FOR LINE AND GRADE BY A SURVEYOR LICENSED IN WASHINGTON STATE, AND CUT SHEETS SHALL BE PROVIDED
TO THE CITY PRIOR TO CONSTRUCTION.
22.ALL NEWLY-INSTALLED AND NEWLY-REHABILITATED (PUBLIC AND PRIVATE) STORM CONVEYANCE SYSTEMS SHALL BE INSPECTED BY MEANS OF REMOTE CCTV
ACCORDING TO THE CITY STANDARD PLAN 266.00. CCTV INSPECTIONS AND REPORTS SHALL BE SUBMITTED TO THE CITY PRIOR TO RECEIVING APPROVAL TO INSTALL
PROJECT CURBS, GUTTERS AND/OR PAVEMENT.
23.ALL STORM SYSTEMS AND CONNECTIONS TO EXISTING MAINS SHALL BE TESTED IN ACCORDANCE WITH SECTION 7-04.3(1) OF THE WSDOT STANDARD SPECIFICATIONS
AND IN THE PRESENCE OF A REPRESENTATIVE OF THE CITY. STORM DRAIN STUBS SHALL BE TESTED FOR ACCEPTANCE AT THE SAME TIME THE MAIN STORM IS
TESTED.
24.FOR ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE DEVELOPMENT SITE, TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL
EITHER STOCKPILE AND REDISTRIBUTE THE EXISTING DUFF LAYER AND NATIVE TOPSOIL OR AMEND THE SOIL WITH COMPOST IN ACCORDANCE WITH STANDARD PLAN
264.00.
25.ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY DOES NOT RELIEVE THE APPLICANT OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY
CONNECTED WITH STORMWATER DISPOSAL. THE CITY DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND MAINTENANCE OF THE STORM
SYSTEM PROVIDED DURING CONSTRUCTION.
26.ADEQUATE SAFEGUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER ACTIONS NEEDED TO PROTECT THE LIFE, HEALTH, AND SAFETY OF
THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK SHALL BE PROVIDED. ANY WORK WITHIN THE TRAVELED
RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED BY THE CITY. ALL SECTIONS OF THE WSDOT
STANDARD SPECIFICATIONS 1-10 TEMPORARY TRAFFIC CONTROL SHALL APPLY.
27.PROJECTS LOCATED WITHIN THE CITY'S AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH SPECIAL REQUIREMENT #6 OF THE RENTON SWDM AND AQUIFER
PROTECTION REGULATIONS (RMC 4-3-050).
28.PLACEMENT OF SURFACE APPURTENANCES (CATCH BASIN/MANHOLE LIDS, CLEANOUTS, INLETS, ETC.) IN THE STREET TRAVEL LANE WHEEL PATH, INTERSECTIONS OF
STREET TRAVEL LANES, BIKE LANES, SIDEWALKS, AND CROSSWALKS SHALL BE AVOIDED WHENEVER POSSIBLE. ANY SURFACE APPURTENANCE PLACED IN A
SIDEWALK OR CROSSWALK SHALL BE FITTED WITH A NON-SLIP OR NON-SKID LID PER ADA REQUIREMENTS.
29.CLEARLY LABEL PUBLIC AND PRIVATE SYSTEMS ON THE PLANS. PRIVATE SYSTEMS SHALL BE MAINTAINED BY THE APPLICANT.
30.MINIMUM COVER OVER STORM DRAINAGE PIPE SHALL CONFORM TO TABLE 4.2.1.A2 OF THE RENTON SWDM.
31.CONSTRUCTED PERMEABLE PAVEMENT SHALL BE PERMEABLE ENOUGH TO ABSORB WATER AT A MINIMUM RATE OF 20 INCHES PER HOUR IMMEDIATELY AFTER THE
PAVEMENT SURFACE HAS BEEN WETTED CONTINUOUSLY FOR AT LEAST 10 MINUTES. COMPLIANCE WITH THIS MINIMUM RATE SHALL BE CHECKED PRIOR TO
CONSTRUCTION APPROVAL OF THE PAVEMENT. COMPLIANCE MAY BE CHECKED USING A SIMPLE BUCKET TEST IN WHICH 5 GALLONS OF WATER IS POURED ONTO THE
PAVEMENT SURFACE ALL AT ONCE. IF ONLY A MINOR AMOUNT OF WATER PONDS OR RUNS OFF THE SURFACE, THEN THE PAVEMENT IS CONSIDERED TO MEET THE
MINIMUM RATE OF ABSORPTION. AT LEAST ONE TEST SHALL BE CONDUCTED PER 1,000 SQUARE FEET OF PERMEABLE PAVEMENT. IF THIS TEST IS NOT CONCLUSIVE,
THEN ANOTHER TEST PER ASTM C1701 SHALL BE CONDUCTED. FOR LARGE AREAS (E.G., PARKING AREAS), TESTING OBSERVATION MAY BE ACCOMPLISHED WHILE
WALKING BEHIND A SLOWLY MOVING WATER TRUCK DISCHARGING WATER AT A RATE SIMILAR TO THE BUCKET TEST. PERMEABLE PAVERS SHALL BE TESTED USING
ASTM C1781.
SURFACE WATER STANDARD PLAN NOTES:
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EROSION AND SEDIMENT CONTROL
STANDARD PLAN NOTES
STD. PLAN - 268.00
EROSION AND SEDIMENT CONTROL (ESC) STANDARD PLAN NOTES:
THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SET. ALL THE NOTES ON THE
LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT
APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC
ASPECTS, THEY SHALL BE ADDED AFTER THE ESC STANDARD PLAN NOTES.
1.BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE-CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY
REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR.
2.THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (ECOLOGY) CONSTRUCTION STORMWATER GENERAL
PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO ECOLOGY
ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT.
3.THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION
COMMENCEMENT TO POST-PROJECT CLEANUP IN ORDER TO FULFILL PROJECT ESC REQUIREMENTS.
4.THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE AREAS AND THEIR BUFFERS, AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS
PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY OF
RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) PRIOR TO THE START OF CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE
BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF
CONSTRUCTION.
5.STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT.
ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT
CLEAN AND TRACK-OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL
BE CLEANED THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING
WATERS OF THE STATE.
6.WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFF-SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE
TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR OPEN DITCHES. ON-SITE DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE
WASHOUT AREAS.
7.ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF
SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL
SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON-SITE EROSION HAS PASSED. ALL ESC BMPS SHALL BE REMOVED AFTER
CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON-SITE EROSION DOES NOT EXIST. THE IMPLEMENTATION,
MAINTENANCE, REPLACEMENT, ENHANCEMENT, AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT.
8.ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY.
9.THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION
PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE NECESSARY TO ENSURE
COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE
APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM
REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM.
10.APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS,
CHANNELS, OR STORMWATER FACILITIES.
11.ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES SHALL BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL.
12.ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST
THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED
ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.) IN CONFORMANCE WITH APPENDIX D OF THE RENTON SWDM.
13.WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 30TH, UNLESS OTHERWISE APPROVED BY THE CITY.
14.ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS.
15.THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT.
INSPECTION AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY.
16.BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL STORM
DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED
TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING
CONDITION.
17.AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE
CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT-LADEN WATER INTO THE DOWNSTREAM SYSTEM.
18.ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY ESC BMPS AND SHALL
PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE
TEMPORARY FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT
FACILITY.
19.AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING STORMWATER FACILITIES OR ON-SITE BMPS (AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT,
ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS TO AVOID SEDIMENTATION AND COMPACTION DURING CONSTRUCTION.
20.PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR
SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON.
AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW.
21.PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE STABILIZED TO PREVENT SEDIMENT-LADEN WATER FROM LEAVING THE PROJECT SITE,
ALL ESC BMPS SHALL BE REMOVED, AND STORMWATER CONVEYANCE SYSTEMS, FACILITIES, AND ON-SITE BMPS SHALL BE RESTORED TO THEIR FULLY
FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED. AT A MINIMUM,
DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH
WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST.
22.ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS
RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF
ROAD RIGHTS-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
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9/28/2018 | 9:45 AM PDT