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NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. FOR FRAME & GRATE DETAILS, SEE STD DWG SW-6.
3. ALL JOINTS TO BE PRE-WETTED BEFORE MORTAR IS PLACED.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
6. CATCH BASIN LID TO MEET CS-600 LOADING.
762
40
6
10
67
400 MIN
FOR COMPACTION
50
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
GROUT ALL AROUND CB LEAD,
INSIDE & OUTSIDE OF BARREL
PRECAST CB LID
PRECAST GRADE RINGS,
2 MIN
CB INLET FRAME & GRATE,
GROUTED TO GRADE RINGS
AS REQ'D
PRECAST CATCH BASIN
BARREL
CB LEAD, INSTALLED IN
FACTORY KNOCK-OUT, SEE
DESIGN DWGS FOR SIZE
12
7
GU
TT
ER
L
IN
E
610 ID
20
ASPHALT
CONCRETE
CURB
BACKFILL WITH IMPORTED
GRANULAR FILL
10
0 M
AX
50
M
IN
FINISHED GRADE
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W-1
6.16.2016
T H E H A R B O U R C I T Y
STANDARD CATCH BASIN
1:15
JAN 2016
NOV 2016
SW-1
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. FOR FRAME & GRATE DETAILS, SEE STD DWG SW-6.
3. ALL JOINTS TO BE PRE-WETTED BEFORE MORTAR IS PLACED.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
6. CATCH BASIN LID TO MEET CS-600 LOADING.
762
85
65
7
400 MIN
FOR COMPACTION
50
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
GROUT ALL AROUND CB LEAD,
INSIDE & OUTSIDE OF BARREL
PRECAST CATCH BASIN
BARREL
CB LEAD, INSTALLED IN
FACTORY KNOCK-OUT, SEE
DESIGN DWGS FOR SIZE
14
3
GU
TT
ER
L
IN
E
611 ID
PRECAST CB LID
PRECAST GRADE RINGS,
2 MIN
CB INLET FRAME & GRATE,
GROUTED TO GRADE RINGS
AS REQ'D
20
ASPHALT
CONCRETE
CURB
BACKFILL WITH IMPORTED
GRANULAR FILL
10
0 M
AX
50
M
IN
FINISHED GRADE
Scale:
Rev Date:
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Created:
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W-2
6.16.2016
T H E H A R B O U R C I T Y
SHALLOW CATCH BASIN
1:15
JAN 2016
NOV 2016
SW-2
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. FOR FRAME & HOOD DETAILS, SEE STD DWG SW-7.
3. ALL JOINTS TO BE PRE-WETTED BEFORE MORTAR IS PLACED.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
6. CATCH BASIN LID TO MEET CS-600 LOADING.
940
30
5
91
5
400 MIN
FOR COMPACTION
50
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
GROUT ALL AROUND CB LEAD,
INSIDE & OUTSIDE OF BARREL
PRECAST CATCH BASIN
BARREL
CB LEAD, INSTALLED IN
FACTORY KNOCK-OUT, SEE
DESIGN DWGS FOR SIZE
12
7
GU
TT
ER
L
IN
E
762 ID
PRECAST CB LID
PRECAST GRADE RINGS,
2 MIN
CB INLET FRAME & GRATE
20
ASPHALT
CURB INLET HOOD
BACKFILL WITH IMPORTED
GRANULAR FILL
10
0 M
AX
50
M
IN
FINISHED GRADE
NOTE:
TOP OF HOOD TO BE FLUSH WITH TOP OF CURB.
PRIOR TO CASTING THE CONCRETE CURB, THE
CURB INLET HOOD IS TO BE PERMANENTLY
FIXED IN PLACE BY EITHER WELDING IN-PLACE,
OR PROVIDING INSERTS CAST INTO THE
CONCRETE CURB.
Scale:
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W-3
6.16.2016
T H E H A R B O U R C I T Y
CURB INLET CATCH BASIN
1:15
JAN 2016
NOV 2016
SW-3
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. FOR FRAME & GRATE DETAILS, SEE STD DWG SW-8.
3. ALL JOINTS TO BE PRE-WETTED BEFORE MORTAR IS PLACED.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
762
55
9
12
20
400 MIN
FOR COMPACTION
50
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
GROUT ALL AROUND CB LEAD,
INSIDE & OUTSIDE OF BARREL
PRECAST GRADE RINGS,
2 MIN
BOULEVARD
FRAME & GRATE
PRECAST CATCH BASIN
BARREL
CB LEAD, INSTALLED IN
FACTORY KNOCK-OUT,
SEE DESIGN DWGS
FOR SIZE
610 ID
CATCH BASINS INSTALLED IN
GRAVEL SURFACES SHALL HAVE
A 50mm THICK x 1.5mØ ASPHALT
APRON ON 100mm OF
COMPACTED CRUSHED GRAVEL
20
BACKFILL WITH
IMPORTED GRANULAR FILL
10
0 M
AX
50
M
IN
Scale:
Rev Date:
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W-4
6.16.2016
T H E H A R B O U R C I T Y
BOULEVARD CATCH BASIN
1:15
JAN 2016
NOV 2016
SW-4
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
3. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
332
28
8
50
0
200 MIN
35
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
GROUT ALL AROUND CB LEAD,
INSIDE & OUTSIDE OF BARREL
PRECAST CATCH BASIN
BARREL
CB LEAD, INSTALLED IN
FACTORY KNOCK-OUT, SEE
DESIGN DWGS FOR SIZE
250 ID
CAST IRON GRATE TO CS-600
LOADING (TR CASTINGS TR 12
OR EQUAL)
BACKFILL WITH COMPACTED
APPROVED NATIVE MATERIAL
ELEVATION
1:15
PLAN
NTS
PR
OP
ER
TY
LIN
E
100Ø SERVICE
FROM HOUSE
150Ø MIN
1
0
0
Ø
M
I
N
ST
OR
M S
EW
ER
LAWN BASIN
STORM SEWER
SERVICE BOX
NOTE:
IF LARGER LAWN BASIN
(SW-4) IS REQ'D, THE CB
LEAD TO BE 150Ø PVC
TO SERVICE BOX.
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6.16.2016
T H E H A R B O U R C I T Y
SMALL LAWN BASIN ON PRIVATE PROPERTY
1:15
JAN 2016
NOV 2016
SW-5
Engineering Standards & Specifications
November 2016 Edition
R
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0
OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. CASTINGS SHALL BE CERTIFIED TO MEET CS-600 LOADING.
3. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED
PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
4. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
GU
TT
ER
LIN
E
76
2
61
0
382
12
7
4-RESTING
PADS
76
338
FRAME PLAN
FRAME SECTION
GRATE PLAN
GRATE SECTION
368
60
3
FL
OW
76
368
19
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W-6
4.13.2016
T H E H A R B O U R C I T Y
CATCH BASIN FRAME AND GRATE
1:10
MAR 2016
NOV 2016
SW-6
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. CASTINGS SHALL BE CERTIFIED TO MEET CS-600 LOADING.
3. FOR GRATE, SEE STD DWG SW-6.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST
WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
FRAME PLAN
SECTION
91
4
61
0
787
59
7
GU
TT
ER
LIN
E
4-RESTING
PADS
133
12
7 M
IN
17
8 M
AX
13
2
10
8
Scale:
Rev Date:
Dwg No:
Created:
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W-7
4.13.2016
T H E H A R B O U R C I T Y ADJUSTABLE CATCH BASIN
FRAME AND HOOD
1:10
MAR 2016
NOV 2016
SW-7
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. ALL BEARING SURFACES BETWEEN FRAME, COVER AND RISER RINGS SHALL BE
MACHINED FOR NON-ROCKING FIT IN ALL POSITIONS. ALLOW 1.5mm RAISED
FACE IN CASTINGS FOR MACHINING.
3. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST
WILL BE ACCEPTED FOR INSTALLATION.
4. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
FRAME AND GRATE PLAN
GRATE SECTION
FRAME SECTION
616
562
11
4
63
70
32
610
76
2
Scale:
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W-8
4.13.2016
T H E H A R B O U R C I T Y BOULEVARD CATCH BASIN
FRAME AND GRATE
1:10
MAR 2016
NOV 2016
SW-8
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF
ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. INLET AND OUTLET GRATES TO BE WELDED AND HOT-DIP GALVANIZED TO ASTM A123/A123M.
3. GRATES TO BE EASILY LIFTED TO ALLOW ACCESS TO THE PIPE FOR CLEARING OF DEBRIS.
4. GRATES TO BE DESIGNED IN ACCORDANCE WITH SECTION 7.11.
5. IF SPECIFIED ON DESIGN DRAWINGS, GUARD RAIL TO BE INSTALLED PER STD DWG SW-12.
6. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE
ACCEPTED FOR INSTALLATION.
7. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
450
MIN
1.5
1
1
1
ELEVATION (OUTLET SHOWN)
1:50
SECTION
1:50
150mm OF 38mm DRAIN
ROCK ON APPROVED
SUB-GRADE
D
I
T
C
H
T
O
P
D
I
T
C
H
B
O
T
T
O
M
1
:1
1.5:1
1
2
1.5:1
FILL SLOPE MUST NOT WRAP
AROUND THE WING WALL.
IF SLOPES ARE REQUIRED TO
BE STEEPER THAN THOSE
SHOWN, CLASS 10 RIPRAP TO
BE INSTALLED.
INLET GRATE SUPPLIED BY
PRE-CAST MANUFACTURER
1.5
1
OUTLET GRATE SUPPLIED BY
PRE-CAST MANUFACTURER
PLAN (INLET SHOWN)
1:50
EXTENT AND SIZE OF RIPRAP
AT INLET & OUTLET AS
SHOWN ON DESIGN DWGS
EXTENT AND SIZE OF RIPRAP
AT INLET & OUTLET AS
SHOWN ON DESIGN DWGS
Scale:
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W-10
6.16.2016
T H E H A R B O U R C I T Y
PRECAST CONCRETE HEADWALL
1:50
FEB 2016
NOV 2016
SW-10
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF
ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE
ACCEPTED FOR INSTALLATION.
3. THIS HEADWALL IS FOR DRIVEWAY CULVERTS AND HYDRANT ACCESS ONLY, UNLESS APPROVED
BY CITY ENGINEER.
4. IF HORIZONTAL ANGLE BETWEEN THE DITCH FLOW AND CULVERT INLET OR OUTLET EXCEEDS
30°, THE HEADWALL WILL REQUIRE WING WALLS TO FUNNEL FLOW TO PREVENT EROSION TO
WALLS OF THE DITCH. SEE DESIGN DRAWINGS FOR DETAILS
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
1.5
1
ELEVATION
1:25
SECTION
1:25
30
0
MIN
450
MIN DITCH
BOTTOM
DITCH BOTTOM
10
00
MA
X D
IT
CH
D
EP
TH
1.5
1
15M PIN
15M PIN, c/w HOOK
INSTALL SUCH THAT MIN ONE BAR
IS DRIVEN THROUGH EACH SACK.
ENSURE PIN IS DRIVEN ENTIRELY
THROUGH BOTTOM SACK
SANDBAGS FILLED WITH
15MPa CONCRETE
CONCRETE, PRE-WETTED
1
3
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4.13.2016
T H E H A R B O U R C I T Y SANDBAG HEADWALL FOR
CULVERT INLETS AND OUTLETS
1:25
FEB 2016
NOV 2016
SW-11
Engineering Standards & Specifications
November 2016 Edition
1800 MAX.
1200
450
450
300
R=150
42 DIA. x 3.55 WALL
GALVANIZED STEEL PIPE
(TYPICAL)
CONCRETE WALL
GENERAL ARRANGEMENT
100
450
400
50
RAIL POST
TOP OF WALL
25 MIN. NON-SHRINK
CEMENT GROUT
0.51 THICK GALV.
SHEET METAL SLEEVES
STEEL PLATE CAP
0.51 OR BETTER
WELDED TO SLEEVE
USE NON-SHRINK
CEMENT GROUT TO
SET PIPE TO GRADE
EMBEDDED MOUNTING
80 2020
TYP TYP
80
80
MIN
4-12x180
ANCHOR BOLTS
BASE PLATE
120 x 12 x 120
RAIL POST
EDGE OF CONCRETE
ATTACHED MOUNTING
CONNECTION DETAILS
50 OPENINGS.
GALVANIZED STEEL CHAIN LINK
FENCING 3.55Ø WOVEN TO
TIE WIRES, 3.55Ø
MAX. SPACING
TOP RAIL - 450
TENSION BAND - 375
LINE POSTS - 300
TENSION BANDS 3 x 20
GALVANIZED STEEL
TENSION WIRE 4.5Ø
GALVANIZED STEEL WIRE.
GALVANIZED STEEL
TENSION BARS 5 x 20
(SEE DETAIL)
MIN
80
240
MIN
IM
UM
W
ALL T
HIC
KN
ES
S
EDGE OF CONCRETE
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF
ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE
ACCEPTED FOR INSTALLATION.
3. ALL JOINTS MITRED, WELDED ALL AROUND AND GROUND SMOOTH.
4. INSTALLATION OF CHAINLINK FENCING AS REQUIRED BY THE CITY ENGINEER.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
Scale:
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Created:
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W-12
6.16.2016
T H E H A R B O U R C I T Y
GUARD RAIL
NTS
NOV 1997
NOV 2016
SW-12
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE
WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING
STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. FOR MANHOLE BENCHING, SEE STD DWG SW-15.
3. FOR FRAME & COVER DETAILS, SEE STD DWG SW-16.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO
APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR
INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED
OTHERWISE.
TYPICAL SECTION
1:25
600 MIN FOR
COMPACTION
150mm OF 38mm DRAIN ROCK
ON APPROVED SUB-GRADE
PRECAST MANHOLE LID
PRECAST GRADE RINGS,
2 MIN; 4 MAX
PRECAST MANHOLE
BARREL, SEE DESIGN
FOR SIZE
20
PRECAST PRE-BENCHED
MANHOLE BASE
RUBBER MANHOLE
ADAPTER RING FOR
PVC PIPES
RUNGS CAST INTO WALL OF
BARREL TO CONFORM TO
WORKSAFE BC REQUIREMENTS
CAST-IN-PLACE
MANHOLE BASE
SLOPE BENCHING 1:10
MIN
PRECAST MANHOLE
BARREL, SEE DESIGN
FOR SIZE
WHERE POSSIBLE, USE
HALF PIPE SECTIONS,
OR BREAK-OUT TOP
HALF OF PIPE
CAST-IN-PLACE BASE
CAST MANHOLE BASE ON
UNDISTURBED SOILS
BACKFILL WITH IMPORTED
GRANULAR FILL
RO
AD
TO CONFORM TO WORKSAFE BC,
OR 500mm MAX
ST
RU
CT
UR
E
MANHOLE FRAME TO
BE CONCRETED TO
MANHOLE LID
USE SHORT MANHOLE
BARREL AS FORM. ENSURE
TOP IS LEVEL PRIOR TO
POURING CONCRETE
CONCRETE BLOCK
TO SET MANHOLE
BARREL HEIGHT
75
MANHOLES INSTALLED IN
GRAVEL SURFACES SHALL
HAVE A 50mm THICK x 1.5mØ
ASPHALT APRON ON 100mm OF
COMPACTED CRUSHED GRAVEL
10
0 M
AX
50
M
IN
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6.16.2016
T H E H A R B O U R C I T Y
STORM MANHOLE
1:25
FEB 2016
NOV 2016
SW-13
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE
WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING
STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. FOR MANHOLE DETAILS, SEE STD DWG SW-13.
3. FOR MANHOLE BENCHING, SEE STD DWG SW-15.
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO
APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR
INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED
OTHERWISE.
MIN
DROP MANHOLE TYPE 2
1:25
DROP MANHOLE TYPE 1
1:25
60
09
00
MIN
CORE HOLE IN
MANHOLE BARREL
400 150
1
5
0M
I
N
MIN MIN
38mm DRAIN ROCK
38mm DRAIN ROCK
GROUT ALL AROUND,
INSIDE & OUTSIDE OF BARREL
CORE HOLE IN
MANHOLE BARREL
GROUT ALL AROUND,
INSIDE & OUTSIDE OF BARREL
DROP PIPING TO BE
250Ø MIN., EXCEPT
IF MAIN IS LESS THAN
250Ø, DROP PIPING
TO EQUAL MAIN.
50
MIN
50
MIN
RUBBER MANHOLE
ADAPTER RING FOR
PVC PIPES
RUBBER MANHOLE
ADAPTER RING FOR
PVC PIPES
DROP PIPING TO BE
250Ø MIN., EXCEPT
IF MAIN IS LESS THAN
250Ø, DROP PIPING
TO EQUAL MAIN.
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6.16.2016
T H E H A R B O U R C I T Y
STORM DROP MANHOLE
1:25
FEB 2016
NOV 2016
SW-14
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF
ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. FOR MANHOLE CHANNELING, REFER TO SECTION 7.49.
3. ALL CHANNELS SHALL BE FINISHED WITH A STEEL TROWEL. BENCHING (HATCHED AREAS),
SHALL BE BROOM FINISHED.
4. MANHOLE COVER AND RUNG LOCATIONS SHALL BE AS SHOWN, UNLESS NOTED OTHERWISE.
5. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE
ACCEPTED FOR INSTALLATION.
6. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
4. FOUR WAY JUNCTION
1. RIGHT ANGLE BEND 2. TEE CONNECTION 3. THREE WAY JUNCTION
6. DEAD END5. STRAIGHT THROUGH
7. WYE CONNECTION 8. 45° BEND
30
0
300 300
TYP TYP
TY
P
300
TYP
3
0
0
T
Y
P
3
0
0
T
Y
P
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W-15
6.16.2016
T H E H A R B O U R C I T Y
STORM MANHOLE BENCHING
NTS
MAY 2012
NOV 2016
SW-15
Engineering Standards & Specifications
November 2016 Edition
REFERRING TO "CITY OF NANAIMO STORM DRAIN",
LETTERING SHALL BE 25 FLATTENED FACE
GOTHIC WITH FACE OF LETTERS RAISED TO THE
SAME LEVELS AS THE TOP OF THE RIBS
(IN STATUTORY RIGHTS-OF-WAY INCLUDE THE
WORDING "DO NOT COVER" ON THE MANHOLE LID)
MANUFACTURER'S SYMBOL 90 MAXIMUM DIMENSION,
CIRCLE OR SQUARE
2-21Ø HOLES
FRAMES INSTALLED ON 600Ø BARRELS
SHALL NOT HAVE RIB
813Ø
565Ø
495Ø
6
90
65
572Ø
622Ø
18
0
15
8
22
508Ø
25
COVER
FRAME
PLAN
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS
AND SPECIFICATIONS, LATEST EDITION.
2. CASTINGS SHALL BE CERTIFIED TO MEET CS-600 LOADING.
3. ALL BEARING SURFACES BETWEEN FRAME, COVER AND RISER RINGS SHALL BE MACHINED FOR NON-ROCKING FIT IN
ALL POSITIONS. ALLOW 1.5mm RAISED FACE IN CASTINGS FOR MACHINING.
4. PAINT THE INSIDE SURFACE OF THE MANHOLE FRAME IN ACCORDANCE WITH THE MANUFACTURER'S SPECIFICATION
WITH ENAMEL RUST PAINT. COLOUR TO BE GREEN.
5. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
6. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
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W-16
6.16.2016
T H E H A R B O U R C I T Y STORM MANHOLE
FRAME AND COVER
NTS
MAR 2016
NOV 2016
SW-16
Engineering Standards & Specifications
November 2016 Edition
PLAN OF FRAME
SECTION OF FRAME, RING
7
7
5
I
.
D
.
8
1
0
5
2
1
I
.
D
.
5
6
5
HOLE
LIFTING
1015mm 810mm
1
9
PLAN OF OUTER RING
19
AND COVER
19
84
20
0
50
FRAME OUTER RING COVER
25 SQ. KNOBS
AT 150 INTERVALS
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS
AND SPECIFICATIONS, LATEST EDITION.
2. CASTINGS SHALL BE CERTIFIED TO MEET CS-600 LOADING.
3. FOR COVER LETTERING AND BOLTING REQUIREMENTS REFER TO STD. DWG. SW-16 OR SW-18 (WATERTIGHT COVER).
4. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
5. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
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4.13.2016
T H E H A R B O U R C I T Y UTILITY CHAMBER STORM MANHOLE
FRAME, RING AND COVER
NTS
MAR 2016
NOV 2016
SW-17
Engineering Standards & Specifications
November 2016 Edition
REFERRING TO "CITY OF NANAIMO STORM DRAIN",
LETTERING SHALL BE 25 FLATTENED FACE
(IN STATUTORY RIGHTS-OF-WAY INCLUDE THE
THE SAME LEVELS AS THE TOP OF THE RIBS
GOTHIC WITH FACE OF LETTERS RAISED TO
WORDING "DO NOT COVER" ON THE MANHOLE LID)
PLAN
POSITIONING LUG
5
7
APPLICATION:
OR HIGH TIDES ARE POSSIBLE. THIS UNIT SHALL
1
3
EQUIPPED WITH FOUR ONLY 19Ø HOLES IN FRAME
19
2
5
STEEL CAP SCREWS TO DISCOURAGE
FULLY ENCOMPASSING BOLT HOLES.
PENTA HEAD CAP SCREWS
BETWEEN FRAME UNITS.
UNITS ARE FOR USE IN AREAS WHERE FLOODING
FOR ANCHOR BOLTS AS SHOWN.
SQUARES
HAVE A POSITIONING LUG IN COVER FOR EASY
32 x 6 DEEP
REPLACEMENT OF CAP SCREWS AND SHALL BE
16 WIDE RIDGES
A
FURNISHED WITH:
WEIGHT OF UNIT SHOWN IS
FOUR 13x57 PENTA HEAD STAINLESS
A
COVER = 56.7 kg
FRAME = 113.4 kg
MANUFACTURE BOLT HOLES TO PERMIT
INTERCHANGING OF COVERS
ALLOW 1.5 RAISED FACE IN CASTING
AND COVER MACHINED TO ENSURE
VANDALISM.
FOR MACHINING.
METAL SURFACES BETWEEN FRAME
NON ROCKING FIT IN ALL POSITIONS.
A)
B)
C)
D)
A 6mm THICK NEOPRENE GASKET
781
603
502
549
543
60
549
451
413
67
54
32
25
184
6
NEOPRENE GASKET
DIA. OF COVER ------ 543
THICKNESS OF COVER -- 54
DIA. OF FRAME ------ 781
DEPTH OF FRAME -----184
SECTION A-A
SEE NOTE 4
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS
AND SPECIFICATIONS, LATEST EDITION.
2. CASTINGS SHALL BE CERTIFIED TO MEET CS-600 LOADING.
3. PAINT THE INSIDE SURFACE OF THE MANHOLE FRAME IN ACCORDANCE WITH THE MANUFACTURER'S SPECIFICATION
WITH ENAMEL RUST PAINT. COLOUR TO BE GREEN.
4. FRAME SHALL BE SET IN MORTAR AND BOLTED TO THE MANHOLE SLAB WITH 19Ø STAINLESS STEEL BOLTS, WASHERS
AND NUTS.
5. THIS DRAWING TO BE READ IN ACCORDANCE WITH DRAWING SW-13.
6. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
7. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
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6.16.2016
T H E H A R B O U R C I T Y WATERTIGHT STORM MANHOLE
FRAME AND COVER
NTS
MAR 2016
NOV 2016
SW-18
Engineering Standards & Specifications
November 2016 Edition
BUILD TO SUIT GRADE.
MORTAR INSIDE AND OUT.
PRECAST CONCRETE GRADE RINGS.
JUTE WRAPPED
STANDARD MANHOLE COVER AND
FRAME. PROJECT FRAME 25mm IN
UNPAVED AREAS AND 0mm IN
2 - 45° LONG RADIUS BENDS
CONCRETE SURROUND
FRAME TO 50
BELOW BARREL (MIN.)
20
0
ADD REDUCER WHERE
TWO GRADE RINGS (50 MIN.)3
00
15
0
CLEANOUT CAP
PAVED AREAS
(RUBBER GASKET REMOVED)
MAIN IS GREATER THAN 150Ø
(OFF ROADWAY AREAS)
C/W 100mm BASE
ASPHALT APRON
FOUR GRADE RINGS (100 MAX.)
600Ø C76 CL II CONCRETE BARREL
COMPACTED SELECT
BACKFILL
CONCRETE IN ACCORDANCE WITH
SECTION 7.26 FOR CONCRETE BASE
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS
AND SPECIFICATIONS, LATEST EDITION.
2. TEMPORARY CLEANOUT STRUCTURES MAY ONLY BE USED AT THE DISCRETION OF THE CITY ENGINEER WHERE THERE
IS DEVELOPMENT PHASING.
3. USE WHERE NO SERVICE EXTENSION IS REQUIRED.
4. FRAME AND COVER TO STD. DWG. SW-16 OR SW-18 (WATERTIGHT COVER).
5. CLEANOUT STRUCTURES LOCATED ON GRAVEL ROADS OR SHOULDER REQUIRE A 1.5m x 1.5m HOT MIX ASPHALT
APRON, 50mm THICK.
6. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
7. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
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6.16.2016
T H E H A R B O U R C I T Y TEMPORARY STORM
CLEANOUT STRUCTURE
1:15
MAR 2016
NOV 2016
SW-19
Engineering Standards & Specifications
November 2016 Edition
300
WITH UPPER PORTION FLATTENED AND DISTANCE TO
LID MARKED IN BLACK FIGURES.
60
0 (M
IN
.)
PAINTED YELLOW
50Ø STEEL PIPE
10
00
SECTION OF PVC PIPE.
CONCRETE BASE SET IN 300Ø
MANHOLE OR TEMPORARY CLEANOUT LID MARKER
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. FOR USE ONLY WHERE MANHOLE OR TEMPORARY CLEANOUTS ARE LOCATED
OUTSIDE THE PAVED PORTION OF THE STREET
3. THE MARKER SHALL BE LOCATED ON SITE BY THE ENGINEER WITH THE FLATTENED
END AND MARKED DISTANCE FACING THE LID.
4. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
Scale:
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W-20
4.13.2016
T H E H A R B O U R C I T Y STORM MANHOLE AND
TEMPORARY CLEANOUT MARKER
1:15
MAR 2016
NOV 2016
SW-20
Engineering Standards & Specifications
November 2016 Edition
45°
45°
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. WHERE DEPTH OF SERVICE AT PROPERTY LINE IS GREATER THAN 2.0m, EXTEND THE SERVICE PAST THE PROPERTY LINE
EQUAL TO ITS DEPTH, TO A MAXIMUM OF 4.0m.
3. WHERE SERVICE IS INSTALLED IN ROCK, THE TRENCH IS TO EXTEND 3.0m PAST THE PROPERTY LINE.
4. STORM SEWER INSPECTION ASSEMBLY, INCLUDING PROPERTY SIDE STUB TO BE GREEN.
5. SERVICE PIPE DEPTH TO BE INSTALLED TO PROVIDE SUFFICIENT DEPTH TO SERVICE THE BASEMENT PLUMBING BY GRAVITY
IN ACCORDANCE WITH THE BC PLUMBING CODE. MINIMUM COVER OF SERVICE PIPE AT PROPERTY LINE TO BE 0.75m.
6. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
7. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
4000 MAX
SEE NOTE 2
FL
OW
300
2.0% MIN
38x89 PRESSURE TREATED
WOOD STAKE, PAINTED
GREEN. MARK WITH DEPTH
OF SERVICE FROM THE TOP
OF THE POST
MIN
45
0
300
FOR INSPECTION ASSEMBLY
AND SERVICE BOX INSTALLATION,
SEE DWG STD SW-23
DITCH
ALTERNATE LOCATION
OF SERVICE CONNECTION
PR
OP
ER
TY
L
IN
E
OR
E
AS
EM
EN
T
ELEVATION
1:50
PLAN
1:50
WATERTIGHT CAP
FOR DEVELOPED LOTS,
STAKE AT THE PROPERTY
LINE OR TIE-INTO EXISTING
PIPING
FOR TRENCH DETAILS, REFER TO
SECTION 4 OF THE MANUAL OF
ENGINEERING STANDARDS AND
SPECIFICATIONS
ALL BENDS TO BE
45° LONG RADIUS
100Ø SDR28 PVC MIN
FINISHED
GROUND
WYE FITTING
OPTIONAL
TEE FITTING
OPTIONAL
DROP SERVICE
CONNECTION
75
0 M
IN
SE
E N
OT
E 5
Scale:
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W-21
6.16.2016
T H E H A R B O U R C I T Y GENERAL STORM SERVICE CONNECTION DETAIL
RISER AND NON-RISER TYPES
1:50
MAR 2016
NOV 2016
SW-21
Engineering Standards & Specifications
November 2016 Edition
45°
45°
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE MANUAL OF ENGINEERING STANDARDS AND
SPECIFICATIONS, LATEST EDITION.
2. WHERE DEPTH OF SERVICE AT PROPERTY LINE IS GREATER THAN 2.0m, EXTEND THE SERVICE PAST THE PROPERTY LINE
EQUAL TO ITS DEPTH, TO A MAXIMUM OF 4.0m.
3. WHERE SERVICE IS INSTALLED IN ROCK, THE TRENCH IS TO EXTEND 3.0m PAST THE PROPERTY LINE.
4. STORM SEWER INSPECTION ASSEMBLY, INCLUDING PROPERTY SIDE STUB TO BE GREEN.
5. SERVICE PIPE DEPTH TO BE INSTALLED TO PROVIDE SUFFICIENT DEPTH TO SERVICE THE BASEMENT PLUMBING BY GRAVITY
IN ACCORDANCE WITH THE BC PLUMBING CODE. MINIMUM COVER OF SERVICE PIPE AT PROPERTY LINE TO BE 0.75m.
6. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST WILL BE ACCEPTED FOR INSTALLATION.
7. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
4000 MAX
SEE NOTE 2
FL
OW
300
45
0
MIN
2.0% MIN
38x89 PRESSURE TREATED
WOOD STAKE, PAINTED
GREEN. MARK WITH DEPTH
OF SERVICE FROM THE TOP
OF THE POST
300
FOR INSPECTION ASSEMBLY
AND SERVICE BOX INSTALLATION,
SEE DWG STD SW-23
DITCH
ALTERNATE LOCATION
OF SERVICE CONNECTION
PR
OP
ER
TY
L
IN
E
OR
E
AS
EM
EN
T
ELEVATION
1:50
PLAN
1:50
WATERTIGHT CAP
FOR DEVELOPED LOTS,
STAKE AT THE PROPERTY
LINE OR TIE-INTO EXISTING
PIPING
FOR TRENCH DETAILS, REFER TO
SECTION 4 OF THE MANUAL OF
ENGINEERING STANDARDS AND
SPECIFICATIONS
ALL BENDS TO BE
45° LONG RADIUS
150Ø SDR28 PVC MIN
FINISHED
GROUND
WYE FITTING
OPTIONAL
TEE FITTING
OPTIONAL
DROP SERVICE
CONNECTION
75
0 M
IN
SE
E N
OT
E 5
NOTE:
WHERE CONNECTION TO
EXISTING SERVICE PIPING IS
SMALLER THAN 150Ø, AN
ECCENTRIC REDUCER SHALL
BE INSTALLED.
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W-22
6.16.2016
T H E H A R B O U R C I T Y
COMMERCIAL AREA STORM
SERVICE CONNECTION DETAIL
RISER AND NON-RISER TYPES
1:50
MAR 2015
NOV 2016
SW-22
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. WHEN SERVICE BOX IS WITHIN CONCRETE DRIVEWAY, CONCRETE ADJACENT
TO THE SERVICE BOX MUST BE A MINIMUM OF 150mm THICK FOR A MINIMUM
DISTANCE OF 150mm AROUND THE OUTSIDE EDGES OF THE SERVICE BOX.
3. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST
WILL BE ACCEPTED FOR INSTALLATION.
4. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
FLOW
30
0 M
IN
600 MIN
TY
P
TYP
CONCRETE DRIVEWAY LANDSCAPED OR GRAVEL
IN AREA OF GRAVEL,
OMIT TOP SOIL
25
CRUSHED GRAVEL (20mm
MINUS), COMPACTED TO 95%
MODIFIED PROCTOR DENSITY
FACTORY
INSTALLED PLUG
INSPECTION CHAMBER,
SEE DESIGN DRAWINGS
FOR SERVICE SIZE
200Ø PVC DR35
SERVICE RISER,
TO BE GREEN
10
0
MIN
CAST IRON OR STEEL LID
CERTIFIED TO CS-600 LOADING
SERVICE RISER CAP,
SEE DETAIL THIS DWG
CONCRETE SERVICE BOX,
CERTIFIED TO CS-600 LOADING
ELEVATION
1:20
RISER CAP DETAIL
NTS
2-ALLEN HEAD
LOCKING SCREWS (
5
8
")
METAL WASHER FOR
UNDERGROUND DETECTION
RUBBER GASKET
BRASS
LOCKING TABS
RISER CAP
TO BE GREEN
200
ID
FOR SERVICE BOXES
WITHIN CONCRETE
DRIVEWAYS, SEE NOTE 2
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Dwg No:
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IN
AL D
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FT
\F
IN
AL D
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ND
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W-23
4.29.2016
T H E H A R B O U R C I T Y STORM SERVICE BOX AND
INSPECTION ASSEMBLY INSTALLATION
1:20
MAR 2016
NOV 2016
SW-23
Engineering Standards & Specifications
November 2016 Edition
A
STORM
A
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. ONLY PRODUCTS LISTED IN THE CITY OF NANAIMO APPROVED PRODUCTS LIST
WILL BE ACCEPTED FOR INSTALLATION.
3. ALL DIMENSIONS ARE MILLIMETERS UNLESS NOTED OTHERWISE.
INSPECTION ASSEMBLY ELEVATION
1:20
FLOW
FACTORY
INSTALLED PLUG
INSPECTION CHAMBER,
SEE DESIGN DRAWINGS
FOR SERVICE SIZE
200Ø PVC DR35
SERVICE RISER,
TO BE GREEN
200
ID
300
ALTERNATE LOCATION
OF SERVICE CONNECTION
PROPERTY LINE
OR EASEMENT
180
60
45
205
MR TYPE VALVE BOX,
SEE DETAIL THIS DWG
ROAD STRUCTURE,
THICKNESS VARIES
MECHANICAL SCREW PLUGS
NTS
RUBBER SEALING COLLAR
RIGID PLASTIC PLUG
PLAN - VALVE BOX LOCATIONS
NTS
FOR SERVICE PIPING
DETAILS, SEE STD
DWG SW-21
3mm RAISED SINGLE
DIAMOND CHECKER
PLATE FLANGE
PARSONS LONG NECK LID,
c/w "STORM" STAMPED IN
20mm HIGH LETTERING
235
397
45
0
233 ID
251 OD
MR STYLE VALVE BOX
1:15
PLAN
SECTION A-A
6mm WALL THICKNESS
MIN
NOTE:
FINISH COAT TO BE
BITUMINOUS DIP
MIN
15
0
MECHANICAL SCREW PLUG,
SEE DETAIL THIS DWG
ASPHALT,
THICKNESS VARIES
SET COVER FLUSH
WITH FINISHED GRADE
Scale:
Rev Date:
Dwg No:
Created:
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W-24
4.13.2016
T H E H A R B O U R C I T Y STORM SERVICE BOX AND INSPECTION ASSEMBLY
INSTALLATION IN PAVED LANES AND ROADWAYS
AS NOTED
MAR 2016
NOV 2016
SW-24
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
RE
TU
RN
P
ER
IO
DS
YE
AR
S
DU
RA
TIO
N
INTENSITY - mm/HOUR
SH
OR
T D
UR
AT
IO
N R
AIN
FA
LL IN
TE
NS
IT
Y-D
UR
AT
IO
N F
RE
QU
EN
CY
D
AT
A F
OR
N
AN
AIM
O
where T
=
T
im
e of
Concentration (hr) and
where I =
Intensity
(m
m/hr)
A =
15.6
5 25
A =
21.8
50
A =
24.4
100
A =
26.9
5
B =
-0.531
25
B =
-0.571
50
B =
-0.582
100
B =
-0.591
NO
TE
:
Convert T
im
e of
Concentration to H
OU
RS
in above form
ula.
10
A =
18.3
10
B =
-0.552
B
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DU
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S\M
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\E
DIT
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N N
O11\F
IN
AL D
RA
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\F
IN
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W-25
6.16.2016
T H E H A R B O U R C I T Y
RAINFALL CURVES
NTS
MAR 2016
NOV 2016
SW-25
Engineering Standards & Specifications
November 2016 Edition
NOTES:
1. THIS DRAWING SHALL BE USED IN ACCORDANCE WITH SECTION 7.0 OF THE
MANUAL OF ENGINEERING STANDARDS AND SPECIFICATIONS, LATEST EDITION.
2. THIS TABLE IS LIMITED FOR USE IN DRAINAGE BASINS UP TO 10km .
3. THIS TABLE DOES NOT MAKE ALLOWANCES FOR VARIATIONS IN SOIL TYPES AND
MAY UNDERESTIMATE TIMES FOR PERMEABLE BASINS.
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
2
3
4
5
6
0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 2 3 4 5 6 7 8 9 10 20 30 40
VE
LO
CIT
Y m
/s
SLOPE (%)
UPLAND METHOD FOR ESTIMATING TIME OF CONCENTRATION
15
O
V
E
R
L
A
N
D
F
L
O
W
:
F
O
R
E
S
T
(
H
E
A
V
Y
L
I
T
T
E
R
)
A
N
D
H
A
Y
M
E
A
D
O
W
O
V
E
R
L
A
N
D
F
L
O
W
:
W
O
O
D
L
A
N
D
,
F
A
L
L
O
W
,
C
O
N
T
O
U
R
O
R
S
T
R
I
P
C
R
O
P
O
V
E
R
L
A
N
D
F
L
O
W
:
P
A
S
T
U
R
E
O
V
E
R
L
A
N
D
F
L
O
W
:
C
U
L
T
I
V
A
T
E
D
S
T
R
A
I
G
H
T
R
O
W
O
V
E
R
L
A
N
D
F
L
O
W
:
N
E
A
R
L
Y
B
A
R
E
S
O
I
L
U
N
T
I
L
L
E
D
G
R
A
S
S
E
D
W
A
T
E
R
W
A
Y
S
M
A
L
L
U
P
L
A
N
D
G
U
L
L
I
E
S
A
N
D
P
A
V
E
D
A
R
E
A
S
(
S
H
E
E
T
F
L
O
W
)
2
Scale:
Rev Date:
Dwg No:
Created:
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TA
ND
AR
DS
&
P
RO
DU
CT
S\M
OE
SS
\E
DIT
IO
N N
O11\F
IN
AL D
RA
FT
\F
IN
AL D
RA
FT
S
TA
ND
AR
D C
AD
D
RA
WIN
GS
\S
EC
TIO
N 7 D
WG
S\S
W-26
4.13.2016
T H E H A R B O U R C I T Y
TIME OF CONCENTRATION TABLE
NTS
NOV 2009
NOV 2016
SW-26
Engineering Standards & Specifications
November 2016 Edition
