iswm construction control standard...

Created: January 2018

Addendum to: iSWM Technical Manual – Construction Controls The following are a selection of 10 iSWM construction control BMP schematics chosen to be provided in standard details.

1. Rock Check Dams 2. Temporary Erosion Control Blankets 3. Dewatering Controls 4. Filter Tube Curb Inlet Protection 5. Hog Wire Weir Curb Inlet Protection 6. Curb Rock Sock On-Grade Curb Inlet Protection 7. Filter Tube Area Inlet Protection 8. Sediment Basin with Overflow Riser 9. Silt Fence 10. Stabilized Construction Exit

iSWM Construction Control Standard Details

ROCK CHECK DAM VIEW LOOKING UPSTREAMN.T.S.

N.T.S.

N.T.S.

SPACE BETWEEN ROCK CHECK DAMS

1.5'

FLOW2

L

TOE OF CHECK DAM TOP OF CHECK DAM

SAME ELEVATION

CONSTRUCTION CONTROLSiSWM™ TECHNICAL MANUAL

CROSS SECTION A-A

211

2

LENGTHWEIR

A

A

MIN.2'

1/2 D

D

1/2 D

DOWNSTREAM DAM SHALL BE AT THE SAME ELEVATION AS TOE OF UPSTREAM DAM-SPACING OF CHECK DAMS BASED ON GRADE OF THE SWALE OR DITCH. TOP OF

CONDITIONS-HEIGHT OF CHECK DAMS (D) BASED ON SWALE OR DITCH DIMENSIONS AND FLOW

DOCUMENT THE FOLLOWING PARAMETERS USED TO DESIGN THE CHECK DAM.CONDITIONS IN THE DRAINAGE SWALE OR DITCH. PROVIDE CALCULATIONS THAT ACTUAL DIMENSIONS OF THE CHECK DAMS SHALL BE DESIGNED BASED ON FLOW NOTES:

FIGURE 2.1 STANDARD CONSTRUCTION DETAIL - ROCK CHECK DAMS (1 OF 2)

1.5D (MIN.)

REVISED CHECK DAM

FILTER FABRIC

9"-36"

11

1FILTER FABRIC

ROCK CHECK DAM GENERAL NOTES:


FIGURE 2.1 NOTES ON ROCK CHECK DAM (2 OF 2)

AN APPROVED MANNER.DAM AND ACCUMULATED SILT SHALL BE REMOVED AND DISPOSED OF IN EROSION OR SEDIMENT CONTROL DEVICE IS EMPLOYED, THE CHECK 5. WHEN THE SITE HAS ACHIEVED FINAL STABILIZATION OR ANOTHER

BE REMOVED AND DISPOSED OF PROPERLY.OF THE CHECK DAM OR ONE FOOT, WHICHEVER IS LESS, THE SILT SHALL 4. WHEN SILT REACHES A DEPTH EQUAL TO ONE-THIRD OF THE HEIGHT

WASHOUT, CONSTRUCTION TRAFFIC DAMAGE, ETC.AS INTENDED DUE TO SILT ACCUMULATION AMONG THE ROCKS, AND SHALL BE REPLACED WHEN THE STRUCTURE CEASES TO FUNCTION 3. THE CHECK DAM SHALL BE INSPECTED AS SPECIFIED IN THE SWPPP INCHES IN DIAMETER DEPENDING ON EXPECTED FLOWS.2. STONE SHALL BE WELL GRADED WITH SIZE RANGE FROM 1 1/2 TO 3 1/2

CHECK DAM (ROCK).1. SEE NCTCOG STANDARD SPECIFICATIONS (2017), SECTION 202.9

REVISEDCHECK DAM

SHEET FLOW

N.T.S.


3' MIN.

3' MIN.

3'

EROSION CONTROL BLANKET

4 INCH MINIMUM SIDE OVERLAP

N.T.S.

ECB OVERLAP EXAMPLE

ECB ISOMETRIC PLAN VIEW

MANUFACTURER

SPACING RECOMEMENDED BY

THROUGHOUT ECB AT

EACH SLOPE CHANGE, AND

CENTER AT END OF ECB AT

STAPLES (TYP.) 12 INCH ON

NOT CHANNELS

PROTECTION,

FOR SLOPE

3' MIN.

LITERATURE.

ECB, OR PER MANUFACTURER

OVERLAP ON TOP OF LOWER

HIGHER ELEVATION SHALL

ENDS OF BLANKETS. ECB AT

3 FOOT MINIMUM OVERLAP AT

REVISEDEROSION CONTROL BLANKET

TEMPORARY EROSION CONTROL BLANKETS (1 OF 2)

FIGURE 2.7 STANDARD CONSTRUCTION DETAIL -

LITERATURE

MANUFACTURER

TRENCH OR PER

X 6" INCH

BLANKET IN A 6"

END OF THE

UP-CHANNEL

BURY THE


EROSION CONTROL BLANKETS GENERAL NOTES:

6. INSPECTION SHALL BE AS SPECIFIED IN THE SWPPP.

JOINTS, AND FLUSHNESS OF THE STAPLES WITH THE GROUND. CHECKED FOR UNIFORM CONTACT WITH THE SOIL, SECURITY OF THE LAP 5. AFTER APPROPRIATE INSTALLATION, THE BLANKETS SHOULD BE

WIRE STAPLES, 6-INCHES IN LENGTH AND 1-INCH WIDTH WILL BE USED.4. IN ABSENCE OF MANUFACTURE'S LITERATURE, A MINIMUM 11-GUAGE

MATERIAL.PARTICULAR ATTENTION MUST BE PAID TO JOINTS AND OVERLAPPING LITERATURE FOR THE APPROVED EROSION CONTROL BLANKET. RECOMMENDATIONS SHOWN WITHIN THE MANUFACTURER'S PUBLISHED 3. INSTALLATION AND ANCHORING SHALL CONFORM TO THE

SLOPE.INSTALLATION AREA, EXCEPT FOR SMALL AREAS WITH LESS THAN 2% TRENCHING SHALL BE LOCATED ALONG THE ENTIRE PERIMETER OF THE DIRECT CONTACT WITH THE SOIL SHALL BE REMOVED. ANCHOR OBSTRUCTIONS THAT WOULD PREVENT THE BLANKET FROM LYING IN ALL ROCKS, DIRT CLODS, STUMPS, ROOTS, TRASH AND ANY OTHER 2. PRIOR TO THE INSTALLATION OF ANY EROSION CONTROL BLANKETS,

1. SEE NCTCOG STANDARD SPECIFICATIONS (2017) SECTION 202.15.

FIGURE 2.7 NOTES ON TEMPORARY EROSION CONTROL BLANKETS (2 OF 2)

REVISED EROSION CONTROL BLANKET

THE DRAWINGS.

FILTER BAGS ON

LOCATIONS OF

SHOW

WATER

PUMPED FILTER BAG

CONTAINMENT

SEDIMENT

FLOW

FILTERED WATER FLOW

FILTERED WATER FLOW


N.T.S.

SEDIMENT FILTER BAG PLAN VIEWN.T.S.

SEDIMENT FILTER BAG PROFILE

SEWN IN SPOUT

TO SPOUT

HOSE SECURED

PUMP DISCHARGE

PUMP

PUMP DISCHARGE HOSESEDIMENT CONTAINMENT FILTER BAGWATER TO BE PUMPED

SIPHON HOSE PLACED IN

RECOMMENDATIONS)

(PER MANUFACTURERS

PROTECT FILTER BAG

UNDERLAYMENT TO

OTHER PREPARED

MULCH, STRAW, OR

ESTABLISHED GRASS,

COURSE AGGREGATE,

REVISED DEWATERING CONTROLS

FIGURE 3.4 STANDARD CONSTRUCTION DETAIL - DEWATERING CONTROLS

DEWATERING CONTROL GENERAL NOTES:

LITERATURE.AND PUMPS SHOULD CONFORM TO PUBLISHED MANUFACTURER 2. CAPACITY, INSTALLATION, MAINTENANCE , AND REMOVAL OF BAGS

D-4751.THAT MEETS ASTM CRITERIA-D4632 , D4833, D-3786, D-4355, D-4491, AND 1. THE BAG SHOULD BE A NON-WOVEN, NEEDLE-PUNCHED, GEOTEXTILE

CURB

INLET

CURB

OPENING

MIN. NO.

BLOCKS

4'-6'

8'-10'

12'-14'

16'-20'

1

2

3

4

ALTERNATIVE FORM FOR TYPE A

CURB INLET PROTECTION

CROSS SECTIONPLAN VIEW

TYPE A CURB INLET PROTECTION

PLAN VIEW

CROSS SECTION

1. DOUBLE WRAP OF FLEXIBLE

WIRE MESH WITH MESH

OPENING 3/4" MAX., OR

2. PLASTIC NETTING DOUBLE

WRAPPED WITH 1/2" MAX.

OPENING, OR

3. GEOSYNTHETIC TUBES

NOTE: PLASTIC OR

WIRE TIES AROUND

WIRE OR PLASTIC

MESH EVERY

12"-18" OR MORE

AS NEEDED.

MATERIAL

OR MULCH FILTER

" FILTER STONE 211

WIRE FABRIC

4"X4" WELDED

CURB

INLET

STD. CMU BLOCK

ON BOTH SIDES

END OF CURB OPENING

24" MIN. BEYOND

FILTER MATERIAL

EXTENDED WRAPPED

ON BOTH SIDES

END OF CURB OPENING

24" MIN. BEYOND

FILTER MATERIAL

EXTENDED WRAPPED

2" GAP

BETWEEN TOP

OF WRAPPED

FILTER AND

TOP OF INLET

OPENING

202.14 AND 202.18

SPECIFICATIONS (2017), SECTION

NOTE: SEE NCTCOG STANDARD


REVISEDINLET PROTECTION

12"

APPROVED BY CITY

STREETS UNLESS

ACTIVE CITY

NOT ALLOWED ON

PLACED WHEN LOCATED ON AN ACTIVE STREET.

NOTE: VERTICAL PANEL BARRICADES TO BE

FILTER TUBE CURB INLET PROTECTION


VARIES

INLET

18''

CUT AWAY OF

FILTER FABRIC

EXTEND 2'-0'' MINIMUM BEYOND

INLET OPENING AT EACH END. 3'' OVERLAP AT

FABRIC SPLICES.

MINIMUM 2'' HIGH

CLEAR OPENING

(SEE TABLE EC1)

2''X4''-W1.4XW1.4

FLOW

FLOW

18" MIN.

OVERLAP

12"18"

STRUCTURE.WIRE FABRIC

N.T.S.

HOG WIRE WEIR CURB INLET PROTECTION CROSS SECTION

N.T.S.

HOG WIRE WEIR CURB INLET PROTECTION ISOMETRIC VIEW

ROCK BAGS @3' O.C.

ROCK BAGS @3' O.C.


REVISED INLET PROTECTION

REFERENCE: NCTCOG STANDARD SPECIFICATIONS (2017), SECTION 202.14

HOG WIRE WEIR CURB INLET PROTECTION (1 OF 2)


FILTER STONE

FILLED WITH 1 1/2"

ROCK BAGS

APPROVED BY CITY

STREETS UNLESS

ACTIVE CITY

NOT ALLOWED ON

WHEN AN ENGINEER HAS DETERMINED THERE IS ADEQUATE STORAGE OR POSITIVE OVERFLOW.

NOTE: THIS CONTROL WILL DECREASE THE CAPACITY OF THE INLET. IT SHALL ONLY BE USED

CURBCURB

SIDEWALK

STORM SEWER INLET

18"

18"

12" MIN.

ROCK BAGS SHALL BE EVENLY SPACED

ALONG TOP AND ALONG THE FRONT OF

INLET.

N.T.S.

INLET

OPENINGOF ROCK BAGS

TOP FRONT

5'

10'

15'

20'

MINIMUM NUMBER

2

3

3

4

3

3

4

4

18"

FLOW

12"

TABLE EC1

HOG WIRE WEIR CURB INLET PROTECTION PLAN VIEW

INLET PROTECTIONS SHALL BE REMOVED AS SOON AS THE SOURCE OF SEDIMENT IS STABILIZED.3.

INSPECTION SHALL BE MADE BY THE CONTRACTOR AND SILT ACCUMULATION MUST BE REMOVED WHEN DEPTH REACHES 2".2.

FABRIC MUST BE SECURED TO WIRE BACKING WITH CLIPS OR HOG RINGS AT THIS LOCATION.

A SECTION OF FILTER FABRIC SHALL BE REMOVED AS SHOWN ON THIS DETAIL TO PROVIDE A 2" MINIMUM CLEAR OPENING. 1.

NOTES:



HOG WIRE WEIR CURB INLET PROTECTION (2 OF 2)


INLET BOX

TOP OF

FLOW


CURB

FLOW

OVER-

3'-5' TYP.

5' MIN.

ENCLOSED IN WIRE MESH

1 1/2" CRUSHED ROCK

4" TO 6" MAX AT CURBS

2" IN SOILOR HARD SURFACE,0" ON BEDROCK

ENCLOSED IN WIRE MESH

1 1/2" CRUSHED ROCK

WIRE TIE ENDS

ROCK SOCK SECTIONN.T.S. N.T.S.

ROCK SOCK PLAN

CURB ROCK SOCK ON-GRADE CURB INLET PROTECTION DETAILN.T.S.

CURB ROCK SOCK ON-GRADE CURB INLET PROTECTION (1 OF 2)


ROCK SOCK

ROCK SOCK

2' MAX

SURFACE

GROUND

PAVEMENT OR

REVISEDROCK SOCK

30 DEGREESAPPROXIMATE


CURB ROCK SOCK ON-GRADE CURB INLET PROTECTION (2 OF 2)


CURB ROCK SOCK ON-GRADE CURB INLET PROTECTION GENERAL NOTES:

5. MINIMUM OF 2 CURB ROCK SOCKS.

4. MAXIMUM ROCK SOCK DIAMETER 4" TO 6".

3. ROCK SOCKS MAY BE USED ON PAVED OR UNPAVED SURFACES.

INTO AN ACTIVE TRAVEL LANE.2. DO NOT INSTALL ON INLETS WHERE THE ROCK SOCKS WOULD EXTEND LOW POINT) TO TRAP SEDIMENT.1. THIS DETAIL IS INTENDED FOR USE WITH ON-GRADE INLETS (NOT A

REVISED ROCK SOCK

12"

MINIM

UM

2"

EROSION CONTROL LOG

CONTROL LOG.

SIDE OF EROSION

MATERIAL ON UPHILL

PLACE EXCAVATED

UNDERCUTTING.

SOIL TO PREVENT

NOTE: COMPACT EXCAVATED

24" 24" MINIMUM

OVERLAP ENDS TIGHTLY

DIRECTED

STAKE AS

OF LOG TO

SECURE END

FLOWFLOW

EROSION CONTROL LOG

AREA DRAIN INLETS WITH

DRAINAGE ACCESS TO

COMPLETELY SURROUND

INLET

DROP

IN PLACE (TYPICAL)

HOLD

LOG AS NEEDED TO

ON DOWNHILL SIDE OF

SANDBAGS

STAKE OR USE

(12 " MIN.)

CONTROL LOG

TEMP. EROSION

INLET

"Y"

MINIMUM

12" DIAMETER

MIN.

1" - 2"

TUBE)

THROUGH THE

(AS SHOWN OR

2' TO 4' LONG.

or #3 REBAR,

2" x 2" WOOD


WOOD STAKES

METAL OR

6" MIN.

WOOD STAKES

METAL OR

SPECIFIED ON PLAN

*DIAMETER = XX" AS

FILTER TUBE

SPECIFIED ON PLAN

*DIAMETER = XX" AS

FILTER TUBE


FIGURE 3.13 STANDARD CONSTRUCTION DETAIL - FILTER TUBE AREA INLET PROTECTION

INLET PROTECTION PLAN VIEWFILTER TUBE AREA

N.T.S.

PROTECTION CROSS SECTIONFILTER TUBE "Y" INLET

N.T.S.

FOR FILTER TUBEEMBEDMENT EXAMPLE

N.T.S.

PROTECTION CROSS SECTIONFILTER TUBE DROP INLET

N.T.S.

TRENCHBEDDING1 1/2 " -2"

TRENCHBEDDING1 1/2 " -2"

NOTE: SEE NCTCOG STANDARD SPECIFICATIONS (2017), SECTION 202.18

21

31


A A

ANCHOR BLOCK

EARTH BERM

ACCEPTABLE MATERIAL

MATTINGS OR OTHER

STABILIZATION - RIP RAP,

RISER

DEWATERING

OUTFALL PIPE

CLAY BERM

COMPACTED

HIGH FLOW OUTLET

ELEVATION

SPILLWAY

EMERGENCY1' MIN.

1' MAX.

1' MAX.

DESIGN CAPACITY

DESIGN HIGH WATER

CROSS SECTION A-AN.T.S.

PLAN VIEWN.T.S.

6' MIN.

OUTLET

STABILIZED

VEGETATION

PERMANENT

TEMPORARY OR

STABILIZED WITH

EMBANKMENT

INSTALLATIONREQUIRED FOR EACH CONTROL PLANS IS THE EROSION INFORMATION ON *SPECIFIC DESIGN

REQUIREDCOMPUTATION

DESIGN

REVISED SEDIMENT BASIN

(AS NEEDED)BLOCKSDISSIPATION ENERGY CONCRETE

EMERGENCY SPILLWAY

REFERENCE: NCTCOG iSWM CRITERIA MANUAL FOR SITE DEVELOPMENT AND CONSTRUCTION, SECTION 3.9 SEDIMENT BASIN.

SEDIMENT BASIN WITH OVERFLOW RISER


SLOPE TO DRAIN

OR FLATTER.SLOPES SHOULD 3:1 MAY VARY. SIDE NECESSARY, SHAPE FOR STORAGE AS EXCAVATED AREA


FLOW

TRENCH

SILT FENCE

(MIN. HEIGHT

24" ABOVE

EXIST. GROUND)

COMPACTED EARTH

6" MIN.

STEEL FENCE POST

BACKING SUPPORT4x4-W1.4xW1.4 MINIMUMALLOWABLE, TYP. CHAIN

LINK FENCE FABRIC IS

ACCEPTABLE

WIRE MESH

6" MIN.

12"

FABRIC TOE-IN

H

1/2 H

8' MAX.

5' MIN.

EACH SIDE

SILT FENCE

1 1/2" FILTER

STONE

FLOW

12"

ISOMETRIC PLAN VIEWN.T.S.

SILT FENCE OVERFLOW STRUCTUREN.T.S.

FENCE

SIDE OF SILT

STONE, EACH

6" MIN. TOP OF

MAX. 6' SPACING,

MIN. EMBEDMENT=1'

BACKFILL

REVISED SILT FENCE

FIGURE 3.28 STANDARD CONSTRUCTION DETAIL - FOR SILT FENCE (1 OF 2)


SILT FENCE GENERAL NOTES:

REVISED SILT FENCE

10. SEE NCTCOG STANDARD SPECIFICATIONS (2017), SECTION 202.5

TO ADDITIONAL SILTATION.AT AN APPROVED SITE AND IN SUCH A MANNER AS TO NOT CONTRIBUTE OF HALF THE HEIGHT OF THE FENCE. THE SILT SHALL BE DISPOSED OF 9. ACCUMULATED SILT SHALL BE REMOVED WHEN IT REACHES A DEPTH

EMPLOYED.ACHIEVED OR ANOTHER EROSION OR SEDIMENT CONTROL DEVICE IS 8. SILT FENCE SHALL BE REMOVED WHEN FINAL STABILIZATION IS

REPLACEMENT SHALL BE MADE PROMPTLY AS NEEDED.7. INSPECTION SHALL BE AS SPECIFIED IN THE SWPPP. REPAIR OR

WHERE ENDS OF FABRIC MEET.POST. THERE SHALL BE A 3 FOOT OVERLAP, SECURELY FASTENED POST OR TO WIRE BACKING, WHICH IN TURN IS ATTACHED TO THE FENCE 6. SILT FENCE SHOULD BE SECURELY FASTENED TO EACH SUPPORT

AND BACKFILLED WITH COMPACTED MATERIAL.WIDE TO ALLOW FOR THE SILT FENCE FABRIC TO BE LAID IN THE GROUND 5. THE TRENCH MUST BE A MINIMUM OF 6 INCHES DEEP AND 6 INCHES

TRENCH IS FLAT AND PERPENDICULAR TO THE LINE OF FLOW.OR MECHANICAL TRENCHER, SO THAT THE DOWNSLOPE FACE OF THE 4. THE TOE OF THE SILT FENCE SHALL BE TRENCHED IN WITH A SPADE

BE EMBEDDED A MINIMUM OF ONE FOOT.SLIGHT ANGLE TOWARD THE ANTICIPATED RUNOFF SOURCE. POST MUST 3. POST WHICH SUPPORT THE SILT FENCE SHALL BE INSTALLED ON A

LENGTHS SHALL BE A MINIMUM OF 10 FEET.SILT FENCE IS TO BE TURNED UPSLOPE AT THE ENDS. UPSLOPE 2. DESIGNER SHALL SHOW ON THE DRAWINGS THE LOCATIONS WHERE

APPROXIMATELY 300 FEET WHERE NO LOW POINT IS APPARENT.STRUCTURES ARE REQUIRED AT ALL LOW POINTS AND AT A SPACING OF OVERFLOW STRUCTURES SHALL BE INSTALLED. OVERFLOW 1. DESIGN SHALL SHOW ON THE DRAWINGS THE LOCATIONS WHERE

FIGURE 3.28 NOTES FOR SILT FENCE (2 OF 2)


STABILIZATION AND STREET PAVED SURFACE

LENGTH AS SHOWN ON PLANS

GRADE TO PREVENT RUNOFF

FROM LEAVING SITE

EXISTING GRADE

PAVED SURFACE

TRANSITION TO

R.O.W.

6" MIN.

FILTER FABRIC

RADIUS

= 5' MIN.

DRAINAGE MUST FLOW

AWAY FROM ENTRANCE

GRADE TO DRAIN AWAY FROM

PAVED SURFACE

PROFILE VIEWN.T.S.

PLAN VIEWN.T.S.

LEAVE THE SITE AND ENTER ROADWAYS

STORM WATER IS NOT ALLOWED TO

ENTRACE MUST BE SLOPED SO THAT

LENGTH (MIN. 50')

W

30' MIN. FOR > 5 AC SITES

20' MIN. FOR < 5 AC SITES

WIDTH (W)

FIGURE 3.29 STANDARD CONSTRUCTION DETAIL - STABILIZED CONSTRUCTION EXIT (1 OF 2)

REVISED STABILIZED CONSTRUCTION EXIT


STABILIZED CONSTRUCTION ENTRANCE GENERAL NOTES:

FIGURE 3.29 NOTES FOR STABILIZED CONSTRUCTION EXIT (2 OF 2)

REVISED STABILIZED CONSTRUCTION EXIT

9. INSPECTION SHALL BE SPECIFIED IN THE SWPPP.

CONSTRUCTION SITE.A DRAINAGE SWALE TO PREVENT RUNOFF FROM LEAVING THE 8. THE ENTRANCE MUST BE PROPERLY GRADED OR INCORPORATE SURFACES MUST BE REMOVED IMMEDIATELY.SPILLED, DROPPED, WASHED, OR TRACKED ONTO PAVED ADDITIONAL STONE AS CONDITIONS DEMAND. ALL SEDIMENT SURFACES. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PAVED 7. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH DRAIN, DITCH OR WATERCOURSE USING APPROVED METHODS.SEDIMENT SHALL BE PREVENTED FROM ENTERING ANY STORM FROM BOTH THE STREET AND THE STABILIZED ENTRANCE. ALL WITH CRUSHED STONE WITH DRAINAGE FLOWING AWAY WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED SEDIMENT PRIOR TO ENTRANCE ONTO A PUBLIC ROADWAY. WHEN 6. WHEN NECESSARY, VEHICLES SHALL BE CLEANED TO REMOVE GREATER THAN 5 AC, AT ALL POINTS OF INGRESS OR EGRESS.5. THE WIDTH SHALL BE NO LESS THAN 20' FOR SITES LESS THAN 5 AC, AND 30' FOR SITES LENGTH OF 50 FEET.4. LENGTH SHALL BE SHOWN ON PLANS, WITH A MINIMUM CEMENT CONCRETE ALLOWED.3. STONE SHALL BE 3 TO 5 INCH DIAMETER COURSE AGGREGATE, NO CRUSHED PORTLAND

2. THE THICKNESS SHALL NOT BE LESS THAN 6 INCHES. 1. SEE NCTCOG STANDARD SPECIFICATIONS (2017), SECTION 202.11

iswm construction control standard...

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