iswm construction controls standard...
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Addendum to: iSWM Technical Manual – Construction Controls
The following are a selection of iSWM construction control BMP schematics chosen to be provided in standard details.
1. TEMPORARY EROSION CONTROL BLANKET
2. ANCHOR EXAMPLE FOR TEMPORARY EROSION CONTROL BLANKET
3. PERMANENT TURF REINFORCEMENT MATS 1 of 3
4. PERMANENT TURF REINFORCEMENTS MATS 2 of 3
5. PERMANENT TURF REINFORCEMENTS MATS 3 of 3
6. SCHEMATIC OF ROCK RIPRAP 1 of 2
7. SCHEMATIC OF ROCK RIPRAP 2 of 2
8. VELOCITY DISSIPATION DEVICE
9. FILTER FABRIC AREA INLET PROTECTION
10.EXCAVATED INLET PROTECTION
11.EXCAVATED STONE OUTLET SEDIMENT TRAP 1 of 2
12.EXCAVATED STONE OUTLET SEDIMENT TRAP 2 of 2
13.CONCRETE WASHOUT CONTAINMENT
14.TRASH RACK ISOMETRIC
15.TRASH RACK PLAN
16.TRASH SCREEN/CATCH DETAIL
17.OUTLET TRASH SCREEN BAG
iSWM Construction Controls Standard Details
iSWM™ TECHNICAL MAN�UAL�-------
LBLANKET EROSION CONTRO REVISED
ECB ISOMETRIC PLAN VIEW N.T.S.
N.T.S.
N.T.S.
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
REVISEDEROSION CONTROL BLANKET
TOP OF SLOPE ANCHOR EXAMPLE 1
3' MIN.
6"
3' MIN.
6"6"
MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
MINIMUM 1 ROW OF STAPLES 12" O.C.
SLOPE < 2%
ALL CRITICAL POINTS
INSTALL STAPLES AT
CONTRACTOR SHALL
LESS THAN 2% SLOPE
FOR AREAS WITH
ALONG PERIMETER
MAY BE OMITTED
ANCHOR TRENCH
TO SLOPE
BLANKET PERPENDICULAR
INSTALL EROSION CONTROL
OR OBJECTIONAL MATERIAL
FREE OF ROCKS, CLODS, STUMPS
FINISHED SLOPE
OVERLAP
MIN.
SLOPE > 2%TO SLOPE
BLANKET PERPENDICULAR
INSTALL EROSION CONTROL
MIN.
OR OBJECTIONAL MATERIAL
FREE OF ROCKS, CLODS, STUMPS
FINISHED SLOPE
TOP OF SLOPE ANCHOR TRENCH EXAMPLE 2
FILL OR GRAVEL
COMPACTED BACK-
ANCHOR TRENCH
ANCHOR EXAMPLES FOR TEMPORARY EROSION CONTROL BLANKETS (2 OF 3)
FIGURE 2.8 STANDARD CONSTRUCTION DETAIL -
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
EROSION CONTROL BLANKETS GENERAL NOTES:
REVISED EROSION CONTROL BLANKET
FIGURE 2.8 NOTES ON TEMPORARY EROSION CONTROL BLANKETS (3 OF 3)
8. INSPECTION SHALL BE AS SPECIFIED IN THE SWPPP.
FLUSHNESS OF THE STAPLES WITH THE GROUND. SHOULD BE CHECKED FOR UNIFORM CONTACT WITH THE SOIL, SECURITY OF THE LAP JOINTS, AND 7. AFTER APPROPRIATE INSTALLATION, THE BLANKETS
IN LENGTH AND 1-INCH WIDTH WILL BE USED.6. IN ABSENCE OF MANUFACTURER'S LITERATURE, A MINIMUM 11-GUAGE WIRE STAPLES, 6-INCHES
OF ROLLS SHALL OVERLAP 4 INCHES.THE END OF EACH ROLL OF ECB SHALL OVERLAP THE NEXT ROLL BY 3 FEET AND THE SIDESPARTICULAR ATTENTION MUST BE PAID TO JOINTS AND OVERLAPPING MATERIAL. AT A MINIMUM, THE MANUFACTURER'S PUBLISHED LITERATURE FOR THE APPROVED EROSION CONTROL BLANKET. 5. INSTALLATION AND ANCHORING SHALL CONFORM TO THE RECOMMENDATIONS SHOWN WITHIN
FOR ANCHORING BASED ON THE SITE-SPECIFIC APPLICATION.MANUFACTURER MAY RECOMMEND. ALWAYS FOLLOW THE MANUFACTURER'S RECOMMENDATIONS 4. ANCHORING METHODS PROVIDED ARE EXAMPLES OF THE TYPE OF ANCHORING THE ECB
SLOPE, SHALL BE REMOVED.OBSTRUCTIONS THAT WOULD PREVENT THE BLANKET FROM DIRECT CONTACT WITH THE FINISHED 3. PRIOR TO THE INSTALLATION: ALL ROCKS, DIRT CLODS, STUMPS, ROOTS, TRASH AND ANY OTHER
2. EROSION CONTROL BLANKET SHALL BE INSTALLED VERTICALLY DOWN SLOPE AS SHOWN.
1. SEE NCTCOG STANDARD SPECIFICATIONS (2017) SECTION 202.15.
TO FLOWPERPENDICULAR
INSTALL TRM
CL
MIN.
N.T.S.
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
REVISEDTURF REINFORCEMENT MATS
3' MIN.
MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
END OF TRM OVERLAP EXAMPLE
OVERLAP
CHANNEL FLOW
N.T.S.
TOE ANCHOR DETAIL
OR GRAVEL
COMPACTED BACKFILL
MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
TRM HALF ISOMETRIC PLAN VIEW
END ANCHOR EXAMPLEREFER TO DOWNSTREAM
VERTICALLY DOWNSLOPE
TRM SHOULD BE INSTALLED
END ANCHOR EXAMPLEREFER TO UPSTREAM
SLOPEFINISHED
SLOPEFINISHED
TURF REINFORCEMENT MATS NOTES:
SLOPE, SHALL BE REMOVED.OBSTRUCTIONS THAT WOULD PREVENT THE MAT FROM DIRECT CONTACT WITH THE FINISHED 2. PRIOR TO THE INSTALLATION: ALL ROCKS, DIRT CLODS, STUMPS, ROOTS, TRASH AND ANY OTHER
1. TURF REINFORCEMENT MATS SHALL BE INSTALLED VERTICALLY DOWN SLOPE AS SHOWN.
RECOMMENDATIONSPER MANUFACTURES 8"-10" MIN. OVERLAP OR
FIGURE 2.11 SCHEMATICS OF PERMANENT TURF REINFORCEMENT MATS (1 OF 3)
CONTROL BLANKET
PERMANENT EROSION
3'
TOE ANCHOR DETAIL
ANCHOR EXAMPLE
REFER TO TRM PERIMETER
REQUIREMENTS STATED ABOVE.CHANNEL WIDTHS 0' TO 8'. CONTRACTOR SHALL VERIFY MAT MEETS OVERLAP AND SLOPENOTE: LONGITUDINAL INSTALLATION OF TURF REINFORCEMENT MAT PERMITTED ONLY FOR
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
REVISEDTURF REINFORCEMENT MATS
HEIGHT OF SLOPEAT LEAST 1/3 THE 18" MIN. OVERLAP
3' MIN. OVERLAP
END ANCHOR EXAMPLEREFER TO DOWNSTREAM
END ANCHOR EXAMPLEREFER TO UPSTREAM
FL
OW
CHANNELTHE FLOWLINE OF THE NOT PERMITTED WITHIN LONGITUDINAL SEAMS
PIECE TRM1 CONTINUOUS
MANUFACTURERWIDTH VARIES BY
N.T.S.
TRM ISOMETRIC PLAN VIEW FOR SMALL CHANNELS/DITCHES
FIGURE 2.11 SCHEMATICS OF PERMANENT TURF REINFORCEMENT MATS (2 OF 3)
ANCHOR EXAMPLE
REFER TO END OF TRM
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
REVISEDTURF REINFORCEMENT MATS
6"
6" 6"
6"
N.T.S.
TRM PERIMETER ANCHOR EXAMPLE
N.T.S.
TRM UPSTREAM END ANCHOR EXAMPLE
N.T.S.
TRM DOWNSTREAM END ANCHOR EXAMPLE
6"
3' MIN.
6"6"
MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
OR GRAVEL
COMPACTED BACKFILL
FLOW
CHANNEL
RECOMMENDATION
MANUFACTURER
PATTERN PER
STAPLE TYPE &
RECOMMENDATION
MANUFACTURER
PATTERN PER
STAPLE TYPE &
FLOW
CHANNEL
OR GRAVEL
COMPACTED BACKFILL MANUFACTURER
RECOMMENDED BY
STAPLE SPACING AS
OR GRAVEL
COMPACTED BACKFILL
SLOPE
FINISHED
SLOPE
FINISHED
SLOPE
FINISHED
PERPENDICULAR TO SLOPE
CONTROL BLANKET
INSTALL EROSION
FIGURE 2.11 SCHEMATICS OF PERMANENT TURF REINFORCEMENT MATS (3 OF 3)
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
TEMPORARY VELOCITY DISSIPATION DEVICE PLAN VIEW
RECYCLED CONCRETE RIPRAP
WELL GRADED STONE OR
*
T2T ELEVATION
OVERFALL
ELEVATION
RECEIVING
RECYCLED CONCRETE RIPRAP
WELL GRADED STONE OR
SLOPE = 0%ON APRON
1
1
N.T.S.
TEMPORARY VELOCITY DISSIPATION DEVICE PROFILE VIEW
D
D
MIN.
REQUIRED FOR EACH INSTALLATION
THE EROSION CONTROL PLANS IS
SPECIFIC DESIGN INFORMATION ON
0.5 x D
MIN.
AP
RO
N W
IDT
H
3 x PIP
E DIA
ME
TE
R (
D) + L
0.75L
REVISEDVELOCITY DISSIPATION DEVICE
FIGURE 2.13 SCHEMATICS OF VELOCITY DISSIPATION DEVICE
NCTCOG 202.13
SLOPE DRAIN PER
TEMPORARY PIPE
NCTCOG 202.13
SLOPE DRAIN PER
TEMPORARY PIPE
USED TO DESIGN THE APRON.
PROVIDE CALCULATIONS THAT DOCUMENT THE FOLLOWING PARAMETERS
FLOW CONDITIONS. TEMPORARY CONTROL DESIGN STORM (2-YEARS, 24-HOUR).
NOTE: DIMENSIONS OF THE RIPRAP APRON SHALL BE DESIGNED BASED ON
pipe
50
MEDIAN STONE DIAMETER d AND MAXIMUM STONE DIAMETER (d ), FEET
CONCRETE RIPRAP
DETERMINE GRADATION FOR d WELL GRADED STONE OR RECYCLED
DISCHARGE VELOCITY FROM DRAINAGE STRUCTURE, V , FT/S
PIPE DIAMETER (OR EQUIVALENT FOR FLUME, SWALE, ETC.), D, FEET
10050
1
1
NCTCOG 202.12.2.3
FILTER FABRIC PER
MINIMUM APRON LENGTH (L) = 10-FT
FL. ELEV. INLET
FILTER FABRIC
BOTTOM OF
FILTER FABRIC
BOTTOM OF
TOP OF GRATE
A
AFLO
W
5% S
LOPE
LESS T
HAN
GRATE INLET
12" MIN.
12" MIN.
INLET
DROP
36"
36"
SEE NOTE 2
18" MAX.
SEE NOTE 2
18" MAX.
GREATER THAN 6' BETWEEN CORNER POSTS.
AND BETWEEN CORNERS IF THE DISTANCE IS
4. POST SHALL BE INSTALLED AT EACH CORNER
CONSTRUCTED ON ONE SIDE OF THE INLET.
REQUIRE A STONE OVERFLOW STRUCTURE TO BE
ONE OR MORE SIDES TOWARD THE INLET MAY
3. CONCENTRATED DITCH FLOW COMING FROM
DAMAGE.
WILL NOT CAUSE FLOODING OF PROPERTY OR
MUST BE CHECKED TO VERIFY PONDING WATER
THE INLET SHALL BE SHOWN ON THE PLANS AND
2. HEIGHT OF INLET PROTECTION SURROUNDING
SECTION 202.5.2.2
1. STAKES SHALL CONFORM TO SPECIFICATIONS
NOTE:
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
FIGURE 3.10 SCHEMATICS OF FILTER FABRIC AREA INLET PROTECTION
N.T.S.
AREA INLET PROTECTION FILTER BARRIER PLAN VIEW
REVISEDINLET PROTECTION
OR GRAVEL
COMPACTED EARTH
BACKFILLED WITH
ANCHOR TRENCH 6"x6"
OR GRAVEL
COMPACTED EARTH
BACKFILLED WITH
ANCHOR TRENCH 6"x6"
N.T.S.
FILTER FABRIC DROP INLET PROTECTION CROSS SECTION (A-A)
N.T.S.
FILTER FABRIC GRATE INLET PROTECTION CROSS SECTION (A-A)
VARIES
VARIES
INLET THROAT
FOR CLOSURE OVERLAP
NEXT STAKE
FILTER FABRIC TO
FOR CLOSURE OVERLAP
NEXT STAKE
FILTER FABRIC TO
SIDES
FRAMED 4
2"x4" WOOD
SIDES
FRAMED 4
2"x4" WOOD
OR CAP NAILS
PNEUMATIC STAPLES
FRAME USING 1/2
AND 1/2 WIRE MESH TO
ATTACH FILTER FABRIC
(DROP OR GRATE)
TOP OF INLET
ALL SIDES SEE NOTE 4
POST IF REQUIRED
ADDITIONAL MIDSPAN
2"x4" WOOD FRAME
6'
(VARIES)
STAKE
FABRIC TO NEXT
OVERLAP FILTER
FOR CLOSURE
APRON
CONCRETE
OR CAP NAILS
PNEUMATIC STAPLES
FRAME USING 1/2
AND 1/2 WIRE MESH TO
ATTACH FILTER FABRIC
FILTER FABRIC (NCTCOG 202.5)
FILTER FABRIC (NCTCOG 202.5)
6" MIN.
6" MIN.
MIN.
MIN.
GRATE INLET
INLET
DROP
CONSTRUCTED ON ONE SIDE OF THE INLET.
REQUIRE A STONE OVERFLOW STRUCTURE TO BE
ONE OR MORE SIDES TOWARD THE INLET MAY
2. CONCENTRATED DITCH FLOW COMING FROM
DISTURBED.
VOLUME OR 3,600 CUBIC FEET PER ACRE
1. STORAGE VOLUME SHALL BE DESIGN STORM
NOTE:
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
REVISEDINLET PROTECTION
N.T.S.
N.T.S.
FIGURE 3.11 SCHEMATICS OF EXCAVATED INLET PROTECTION
EXCAVATED INLET PROTECTION GRATE INLET SECTION A-A
EXCAVATED INLET PROTECTION "Y" INLET SECTION A-A
12"PER NCTCOG 504.2.2.1
" FILTER STONE21
1
12" MIN.3" MIN.
12"PER NCTCOG 504.2.2.1
" FILTER STONE21
1
3" MIN.12" MIN.
2' MAX.
1' MIN.
FINISHED GROUND
1
2 MAX.
SEE NOTE 1.
BY ENGINEER.
DETERMINED
VOLUME AS
STORAGE
SEDIMENT
N.T.S.
EXCAVATED INLET PROTECTION PLAN VIEW
INLET (GRATE OR DROP)
" FILTER STONE21
1
2 MAX.
1
2' MAX.
1' MIN. 1
2 MAX.
FINISHED GROUND
STORAGE AREA.
PRIOR TO BACKFILLING
TO BE FILLED WITH GROUT
REQUIRED. WEEP HOLES
WEEP HOLES (3/4" MIN.) AS
STORAGE AREA.
PRIOR TO BACKFILLING
TO BE FILLED WITH GROUT
REQUIRED. WEEP HOLES
WEEP HOLES (3/4" MIN.) AS
SEE NOTE 1.
BY ENGINEER.
DETERMINED
VOLUME AS
STORAGE
SEDIMENT
NCTCOG 202.12.2.3
FILTER FABRIC PER
NCTCOG 202.12.2.3
FILTER FABRIC PER
FLOW
FLOW
FLOW
FLOWA
A
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
·EXTENT OF GRADING TO PROVIDE THE CONTROLLED OUTLET ·STORAGE VOLUME ·HEIGHT, SLOPE, AND LENGTH OF STONE OUTLET ·DESIGN STORM VOLUME AND FLOW RATE AT THE TRAP ·SIZE OF CONTRUBUTING DRAINAGE AREADESIGN THE TRAP.SITE TOPOGRAPHY. PROVIDE CALCULATIONS THAT DOCUMENT THE FOLLOWING PARAMETER USED TO NOTE: ACTUAL DIMENSIONS OF THE SEDIMENT TRAP SHALL BE DESIGNED BASED ON FLOW CONDITIONS AND
REVISEDSTONE OUTLET SEDIMENT TRAP
N.T.S.
FIGURE 3.30 SCHEMATICS OF EXCAVATED STONE OUTLET SEDIMENT TRAP (1 OF 2)
EXCAVATED STONE OUTLET SEDIMENT TRAP ISOMETRIC VIEW
2
1
1
3 (TYP.)
1
A
A
VARIE
S
EXC
AVATIO
N LIMIT
AS R
EQ
UIR
ED F
OR S
TO
RAGE
B
B
FLO
W
MAX6-FOOT
WIDTH2' MIN.
1.5 MAX
SLOPEREVERSE
2' MIN.
FLO
W
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
NATURAL GROUNDTO CONSTRUCT SWALESTONE OR EARTH FILL
21" MIN.
6' MAX. FILL
12" MIN.
3' MIN.
4' MIN. WIDTH
N.T.S.
FLOW
STORAGENECESSARY FOREXCAVATION IF
2' MIN.
6' MAX.
FLATTER1 OR
1.5
REVISEDSTONE OUTLET SEDIMENT TRAP
1
1 MAX
24" MIN.
FOR DESIGN FLOW6" MIN. FREEBOARD
EXCAVATED STONE OUTLET SEDIMENT TRAP VIEW LOOKING UPSTREAM (A-A)
FOR DESIGN FLOW6" MIN. FREEBOARD
NCTCOG 504.2.2.11" FILTER STONE PER
202.12.2.3PER NCTCOGFILTER FABRIC
NCTCOG 803.3RIPRAP PERDRY STONE6"-12" TYPE A
GREATER THAN 1.5-FEETNCTCOG 202.12.2.4 IF HEIGHT ISWITH GABION OR CHAINLINK PERSTONE OUTLET SHALL BE CONFINED
FILL IS USEDSETTLEMENT IFOVERFILL 6" FOR
N.T.S.
EXCAVATED STONE OUTLET SEDIMENT TRAP SECTION VIEW (B-B)
6" MIN.
(OMIT FOR UNCONFINED)STONE INSTALLATIONSREQUIRED FOR CONFINED2" GALVANIZED STEEL PIPE
NCTCOG 202.12.2.4CONFINEMENT PERGABION OR CHAINLINK
PLATEBEARING
FIGURE 3.30 SCHEMATICS OF EXCAVATED STONE OUTLET SEDIMENT TRAP (2 OF 2)
NCTCOG 202.12.2.3FILTER FABRIC PER
FLOW
2% MIN. SLOPEREVERSE SLOPE
2' MIN.
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
REVISEDCONCRETE WAST MANAGEMENT
FIGURE 4.1 SCHEMATICS OF CONCRETE WASHOUT CONTAINMENT
EDGE OF PLASTIC LINING SANDBAG*
3' MIN.
2' MIN.
10' MIN.
DESIGN CRITERIAVARIES SEE
A A
SANDBAG*
N.T.S.
CONCRETE WASHOUT SECTION A-A
N.T.S.
CONCRETE WASHOUT PLAN VIEW
CONCRETE WAHSOUT NOTES:
THE PLASTIC LINING.
BERM TO ANCHOR
REPLACED BY A SOIL
*SANDBAGS MAY BE
10 MIL. MINIMUM PLASTIC LINING
10 MIL. MINIMUM PLASTIC LINING
CONCRETE WASHOUT FACILITY SHOULD BE MAINTAINED TO PROVIDE ADEQUATE HOLDING CAPACITY.2. WASHOUT STRUCTURES SHALL BE CLEANED OUT WHEN THE STRUCTURE IS 75% FULL. TEMPORARY
1. WASHOUT AREA MUST BE CLEARLY MARKED WITH SIGNAGE NOTING THE WASHOUT AREA.
0.5T
VARIES1
T
TT
2T
1
1BACKFILL
COMPACTED
PROPOSED GRADET
LAPS BOTTOM FABRIC
VERTICAL FILTER FABRIC
ROCK RIPRAP
LINE
EXCAVATION
BEDDING
6" MIN.
6" MIN. BEDDING
FILTER FABRIC
NCTCOG 803.4FILTER FABRIC PER
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
TYPICAL ROCK RIPRAP SLOPE PROTECTION SECTION
N.T.S.
ROCK RIPRAP TOP OF BANK DETAIL
REVISEDROCK RIPRAP
FIGURE X.XX RIPRAP SCHEMATICS OF ROCK RIPRAP (SHEET 1 OF 2)
5T
2 MAX.
1
50
50MEDIAN STONE DIAMETER d AND MAXIMUM STONE DIAMETER d , FEET
DETERMINE GRADATION FOR d WELL GRADED STONE
FILTER FABRIC SPLICES SHALL HAVE A MINIMUM 18 INCHES OVERLAP
ROCK RIPRAP DRY OR GROUTED AS SHOWN ON EROSION CONTROL PLANS
100
T = 1.5 x d50
d =min.
50
100d =
d =
NOT TO SCALE
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
ROCK RIPRAP TOE OF SLOPE DETAIL
N.T.S.
UPSTREAM ROCK RIPRAP TOE WALL DETAIL
REVISEDROCK RIPRAP
FLOWROCK RIPRAP T
EXCAVATION LINESFILTER FABRIC ON
1
1
2T
2T
T
2T
T
1
1VARIES
1
1
1
2T
ROCK RIPRAP
EXCAVATION LINES
FILTER FABRIC ON
6" MIN. BEDDING
6" MIN. BEDDING
FIGURE X.XX RIPRAP SCHEMATICS OF ROCK RIPRAP (SHEET 2 OF 2)
5T
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
N.T.S.
TEMPORARY TRASH SCREEN DETAIL
REVISEDTRASH COLLECTION
CHAIN LINK FENCE
FLOW
"T" POST
TURN BUCKLE
3/8" GUY WIRE W/
18" MIN.
42"
CABLE
3/8" TENSION
4'
NATURAL GROUND
8-FOOT
PAINTED STEEL "T" POST
METAL BANDS
POST USING TIE WIRE OR
801.4.2.1 CONNECT TO
CHAINLINK PER NCTCOG
N.T.S.
PROFILE OF TEMPORARY TRASH SCREEN DETAIL
DITCHWATERWAY ORC.L. OF GRASSY
6' (TYP.)
6' (TYP.)6' (TYP.)
SPACING
6' MIN.
"T" POST
STRUCTURE IN APPROACHLOCATE STONE OVERFLOW
FIGURE X.XX TRASH SCREEN/CATCH DETAIL (SHEET 1 OF 2)
TEMPORARY TRASH SCREEN.
3. ENGINEER TO VERIFY APPLICABILITY OF
OR DAMAGE.
WATER WILL NOT CAUSE FLOODING OF PROPERTY
PLANS AND MUST BE CHECKED TO VERIFY PONDING
2. HEIGHT OF INSTALLATION SHALL BE SHOWN ON
OVERFLOW STRUCTURE TO BE CONSTRUCTED.
THE INSTALLATION WILL REQUIRE A STONE
1. CONCENTRATED DITCH FLOW COMING TOWARD
NOTES:
CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL
REVISEDTRASH COLLECTION
N.T.S.
OUTLET TRASH SCREEN BAG
STORM DRAIN OUTLET
EXISTING/PROPOSED
MESH OPENING
MINIMUM 20mm/0.75-INCH
VARIES BY MANUFACTURER
PRE-MANUFACTURED MESH BAG
FIGURE X.XX TRASH SCREEN/CATCH DETAIL (SHEET 2 OF 2)
DOWNSTREAM OF OUTFALL
OPTIONAL WEIR CONFIGURATION
INSTALL COLLAR ON HEADWALL OR
iSWM™ TECHNICAL MANUAL
CONSTRUCTION CONTROLS
TRASH RACK
REVISED
FIGURE X.XX TRASH RACK ISOMETRIC
HALF ISOMETRIC VIEW
SIDE VIEW WITH HEADWALL
F
L
O
W
F
L
O
W
FLOW
MOUNTING PLATE
BLOCK OFF PLATE
MOUNTING BRACKET
TRASH BASKET
WING
WALL
WING WALL
HEAD WALL
BLOCK OFF
PLATE
MOUNTING BRACKET
MOUNTING BRACKET
TRASH BASKET
LATERAL BRACING AS ENGINEER
OR MANUFACTURE SPECIFIED
POST INSTALLED
CONCRETE ANCHORAGE
ENGINEER TO VERIFY
MIN. CONCRETE THICKNESS
FOR STRUCTURE ANCHORAGE
PROPOSED OR
EXISTING CONCRETE
CHANNEL RIPRAP
iSWM™ TECHNICAL MANUAL CONSTRUCTION CONTROLS
TRASH RACK
REVISED
FIGURE X.XX TRASH RACK PLAN
TOP VIEW
FRONT VIEW
TRASH BASKET
ISOMETRIC VIEW
MOUNTING BRACKET
NOTES:
1. OVERALL SIZE AND LOCATION TO BE
DETERMINED BY THE ENGINEER.
2. SIZE AND SPACING OF MESH VARIES AS
NEEDED.
LIFTING I-BEAM
HINGE PIN
SQUARE
TUBING
ANGLE IRON
LIFTING I-BEAM
SQUARE
TUBING
ANGLE IRON
HINGE PIN
SQUARE
TUBING
SQUARE
TUBING
MOUNTING
PLATE
MOUNTING BRACKET
I-BEAM
LIFTING
I-BEAM
LIFTING I-BEAM
HINGE PIN
FRONT OPEN
ROUND BAR
MESH
ROUND BAR
MESH
ROUND BAR
MESH
SIDE VIEW
TRASH BASKET
TRASH BASKETTRASH BASKET
ANGLE IRON
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