1.4.1-2016-075 C4.1 (081117)

PROJECT INFORMATION
ENGINEERED
KELLY HEFNER
PRODUCT
704-215-0743
MANAGER:
[e-mail]
PAVEMENT
KEITH COEN
ADS SALES REP:
704-466-0135
REQUIREMENT
[e-mail]
PROJECT NO:
177632
STORMWATER CHAMBER SPECIFICATIONS
LLULLYUC)o
ADVANCED DRAINAGE SYSTEMS, INC.
SMG PROPERTIES
STATESVILLE, NC
1. CHAMBERS SHALL BE STORMTECH SC -740, SC -310, OR APPROVED EQUAL.
2. CHAMBERS SHALL BE MANUFACTURED FROM VIRGIN POLYPROPYLENE OR POLYETHYLENE RESINS.
3. CHAMBER ROWS SHALL PROVIDE CONTINUOUS, UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL SUPPORT PANELS THAT
WOULD IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION.
4. THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION REQUIREMENTS SHALL ENSURE
THAT THE LOAD FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1)
LONG -DURATION DEAD LOADS AND 2) SHORT -DURATION LIVE LOADS, BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION
FOR IMPACT AND MULTIPLE VEHICLE PRESENCES.
5. CHAMBERS SHALL MEET ASTM F2922 (POLYETHYLENE) OR ASTM F2418-16 (POLYPROPYLENE), "STANDARD SPECIFICATION FOR
THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
6. CHAMBERS SHALL BE DESIGNED AND ALLOWABLE LOADS DETERMINED IN ACCORDANCE WITH ASTM F2787, "STANDARD PRACTICE
FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
7. ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. THE CHAMBER MANUFACTURER SHALL
SUBMIT THE FOLLOWING UPON REQUEST TO THE SITE DESIGN ENGINEER FOR APPROVAL BEFORE DELIVERING CHAMBERS TO THE
PROJECT SITE:
a. A STRUCTURAL EVALUATION SEALED BY A REGISTERED PROFESSIONAL ENGINEER THAT DEMONSTRATES THAT THE SAFETY
FACTORS ARE GREATER THAN OR EQUAL TO 1.95 FOR DEAD LOAD AND 1.75 FOR LIVE LOAD, THE MINIMUM REQUIRED BY ASTM
F2787 AND BY AASHTO FOR THERMOPLASTIC PIPE.
b. A STRUCTURAL EVALUATION SEALED BY A REGISTERED PROFESSIONAL ENGINEER THAT DEMONSTRATES THAT THE LOAD
FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET. THE 50 YEAR CREEP
MODULUS DATA SPECIFIED IN ASTM F2418 OR ASTM F2922 MUST BE USED AS PART OF THE AASHTO STRUCTURAL EVALUATION
TO VERIFY LONG-TERM PERFORMANCE.
C. STRUCTURAL CROSS SECTION DETAIL ON WHICH THE STRUCTURAL EVALUATION IS BASED.
8. CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN ISO 9001 CERTIFIED MANUFACTURING FACILITY.
ADS. INC.
IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF THE SC-310/SC-740 SYSTEM
1. STORMTECH SC -310 & SC -740 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S REPRESENTATIVE HAS COMPLETED A
PRE -CONSTRUCTION MEETING WITH THE INSTALLERS.
2. STORMTECH SC -310 & SC -740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/SC-780 CONSTRUCTION
GUIDE".
3. CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR AN EXCAVATOR SITUATED OVER THE CHAMBERS.
STORMTECH RECOMMENDS 3 BACKFILL METHODS:
• STONESHOOTER LOCATED OFF THE CHAMBER BED.
BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE OR SUBGRADE.
BACKFILL FROM OUTSIDE THE EXCAVATION USING A LONG BOOM HOE OR EXCAVATOR.
4. THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACING CHAMBERS.
5. JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE.
6. MAINTAIN MINIMUM - 6" 150 mm SPACING BETWEEN THE CHAMBER ROWS.
7. EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN, CRUSHED, ANGULAR STONE 3/4-2" (20-50 mm).
8. THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIALS BEARING CAPACITIES TO THE SITE DESIGN
ENGINEER.
9. ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT" INSERTS DURING CONSTRUCTION FOR ALL INLETS TO PROTECT THE SUBSURFACE
STORMWATER MANAGEMENT SYSTEM FROM CONSTRUCTION SITE RUNOFF.
NOTES FOR CONSTRUCTION EQUIPMENT
1. STORMTECH SC -310 & SC -740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION
GUIDE".
2. THE USE OF CONSTRUCTION EQUIPMENT OVER SC -310 & SC -740 CHAMBERS IS LIMITED:
• NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS,
NO RUBBER TIRED LOADERS, DUMP TRUCKS, OR EXCAVATORS ARE ALLOWED UNTIL PROPER FILL DEPTHS ARE REACHED IN ACCORDANCE
WITH THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
• WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
3. FULL 36" (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP TRUCK TRAVEL OR DUMPING.
USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO THE CHAMBERS AND IS NOT AN
ACCEPTABLE BACKFILL METHOD. ANY CHAMBERS DAMAGED BY THE "DUMP AND PUSH" METHOD ARE NOT COVERED UNDER THE STORMTECH
STANDARD WARRANTY.
CONTACT STORMTECH AT 1-888-892-2694 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS OR WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT.
ACCEPTABLE FILL MATERIALS: STORMTECH SC -740 CHAMBER SYSTEMS
PLEASE NOTE:
1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED,
ANGULAR NO. 4 (AASHTO M43) STONE".
2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 6" (150 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
3. WHERE INFILTRATION SURFACES MAYBE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAYBE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION
EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS.
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
PERIMETER STONE
(SEE NOTE 6)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (300
SC -740
END CAP
SUBGRADE SOILS ,
(SEE NOTE 4)
'TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED
STALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,
INCREASE COVER TO 24" (600 mm).
6" (150 mm) MIN
30"
® ® (760 mm)
(150 mm) MIN
51" (1295 mm)
NOTES:
1. SC -740 CHAMBERS SHALL CONFORM TO THE REQUIREMENTS OF ASTM F2418 "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS",
OR ASTM F2922 "STANDARD SPECIFICATION FOR POLYETHYLENE (PE) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
2. SC -740 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION
CHAMBERS".
3. "ACCEPTABLE FILL MATERIALS" TABLE ABOVE PROVIDES MATERIAL LOCATIONS, DESCRIPTIONS, GRADATIONS, AND COMPACTION REQUIREMENTS FOR FOUNDATION, EMBEDMENT, AND FILL
MATERIALS.
4. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE
WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
5. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
6. ONCE LAYER'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL
REQUIREMENTS OF LAYER'C' OR'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
8'
18" (2.4 m)
(450 mm) MIN` MAX
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 6" (150 mm) MIN
12" (300 mm) TYP
W a �' N
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3 of 6
PROPOSEDLAYOUT
60 STORMTECH SC -740 CHAMBERS
10 STORMTECH SC -740 END CAPS
6 STONE ABOVE (in)
6 STONE BELOW (in)
40 % STONE VOID
5,181 INSTALLED SYSTEM VOLUME (CF)
(PERIMETER STONE INCLUDED)
2,519 SYSTEM AREA (ft')
246 SYSTEM PERIMETER (ft)
PROPOSED ELEVATIONS
MAXIMUM ALLOWABLE GRADE (TOP OF PAVEMENT/UNPAVED):
MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC):
MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC):
MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT):
MINIMUM ALLOWABLE GRADE (TOP OF RIGID PAVEMENT):
TOP OF STONE:
TOP OF SC -740 CHAMBER:
12" TOP MANIFOLD INVERT:
12" BOTTOM CONNECTION INVERT:
24" ISOLATOR ROW INVERT:
BOTTOM OF SC -740 CHAMBER:
BOTTOM OF STONE:
RING & COVER
RIM ELEV. - 878.50
6' DIA PRECAST CONCRETE
CONE
880.24
874.24
873.74
873.74
873.74
872.74 6' DIA PRECAST CONCRETE
872.24 CATCH BASIN
870.78
869.84
869.75
869.74
869.24 FLO
12" ADS N-12
INV IN - 869.74
SLOPE BOTTOM W/ GROUT -
OU TLE
PROPOSED 30" NYLOPLAST
MAXIMUM INLET FLOW 4.2 CFS
(24" SUMP MIN)
FROM JB -10
INV = 872.74
�J
p11
12" X 12" ADS N-12 TOP MANIFOLD
INVERT 12.5" ABOVE CHAMBER BASE
(SEE NOTES)
12" ADS N-12 BOTTOM CONNECTION
INVERT 1.2" ABOVE CHAMBER BASE
(SEE NOTES) r
PROPOSED OUTLET CONTROL STRUCTURE
MAXIMUM OUTLET FLOW 4.0 CFS
SEE DETAIL ABOVE
COVER ENTIRE ISOLATOR ROW WITH ADS
GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE
8'(2.4 m) MIN WIDE
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM PURE INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
CATCH BASIN
OR
MANHOLE
SUMP DEPTH TBD BY
SITE DESIGN ENGINEER
(24" [600 mm] MIN RECOMMENDED)
NOTES
• MANIFOLD SIZE TO BE DETERMINED BY SITE DESIGN ENGINEER. SEE TECH SHEET #7 FOR MANIFOLD SIZING GUIDANCE.
• DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE
NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD.
\�J
6' DIA PRECAST
CATCH BASIN
100 TEAR Si VOLU
60 YEAR 11 1%1
J5 YEAR STOR yOLU
0 YEAR 5, VOLU
12 BOT. CON.
INV. 869.84
6" CONCRETE BAFFLEWALL
SEE SECION, THIS SHEET
18" RCP
INV OUT -
869.24
L STRU CTURE
P18 FLO
97.46'
87.01'
24" PREFABRICATED END CAP, PART# SC740EPE24B
TYP OF ALL SC -740 24" CONNECTIONS AND ISOLATOR
ROWS
INSPECTION PORT
ISOLATOR ROW
PLACE MINIMUM 12.5' OF ADS GEOSYNTHETICS
315WTK WOVEN GEOTEXTILE OVER BEDDING
STONE AND UNDERNEATH CHAMBER FEET FOR
SCOUR PROTECTION AT ALL CHAMBER INLET
ROWS
SC -740 CHAMBE
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PRE -FABRICATED END CAP
PART #: SC740EPE24B
SMG PROPERTIES SC -740 ISOLATOR ROW DETAIL
10 SECTION THROUGH BAFFLE WALL
NOT TO SCALE
PROPOSED 30" NYLOPLAST
MAXIMUM INLET FLOW 6.2 CFS
(24" SUMP MIN)
FROM JB -11
INV = 872.74
P16 Q
12
INV(SE" X 12" ADS N-12 TOP MANIFOLD
ERT 12.5" ABOVE CHAMBER BASE n
E NOTES) N N
NTS
40 END CAP
5WTK WOVEN
GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS
5'(1.5 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
INSPECTION & MAINTENANCE
CARO',.,,
AASHTO MATERIAL
COMPACTION / DENSITY
MATERIAL LOCATION
DESCRIPTION
A. INSPECTION PORTS (IF PRESENT)
PAVEMENT
= ; = 7365
SEAL
A.1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
CLASSIFICATIONS
REQUIREMENT
A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS
'ilil n t`YY�
A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
8/21/17
FROM THE TOP OF THE 'C' LAYER TO THE BOTTOM
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER
PREPARE PER SITE DESIGN ENGINEER'S PLANS.
D
OF FLEXIBLE PAVEMENT OR UNPAVED FINISHED
ENGINEER'S PLANS. CHECK PLANS FOR PAVEMENT
N/A
PAVED INSTALLATIONS MAY HAVE STRINGENT
B.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW
GRADE ABOVE. NOTE THAT PAVEMENT SUBBASE
SUBGRADE REQUIREMENTS.
B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE
MATERIAL AND PREPARATION REQUIREMENTS.
MAY BE PART OF THE'D' LAYER
ii) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE
B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
FLEXSTORM CATCH Il
BEGIN COMPACTIONS AFTER 12" (300 mm) OF
PART# 6212NYFA
STEP 2)
AASHTO M145'
MATERIAL OVER THE CHAMBERS IS REACHED.
INITIAL FILL: FILL MATERIAL FOR LAYER'C'
GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35%
A-1, A-2-4, A-3
COMPACT ADDITIONAL LAYERS IN 6" (150 mm) MAX
STARTS FROM THE TOP OF THE EMBEDMENT
FINES OR PROCESSED AGGREGATE.
6" (150 mm) INSERTA TEE
LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
C
STONE ('B' LAYER) TO 18" (450 mm) ABOVE THE
STEP 3)
OR
WELL GRADED MATERIAL AND 95% RELATIVE
TOP OF THE CHAMBER. NOTE THAT PAVEMENT
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU
AASHTO M
DENSITY FOR PROCESSED AGGREGATE
SUBBASE MAY BE A PART OF THE 'C' LAYER.
OF THIS LAYER.
67, 68, 7, 78, 8, 89,
3, 357, 4, 467, 5, 56, 57, 6, 67,
MATERIALS. ROLLER GROSS VEHICLE WEIGHT
9, 10
NOT TO EXCEED 12,000 Ibs (53 kN). DYNAMIC
FORCE NOT TO EXCEED 20,000 Ibs (89 kN).
EMBEDMENT STONE: FILL SURROUNDING THE
AASHTO M43'
B
CHAMBERS FROM THE FOUNDATION STONE ('A'
CLEAN, CRUSHED, ANGULAR STONE
NO COMPACTION REQUIRED.
LAYER) TO THE'C' LAYER ABOVE.
3, 357, 4, 467, 5, 56, 57
FOUNDATION STONE: FILL BELOW CHAMBERS
AASHTO M43'
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT
A
FROM THE SUBGRADE UP TO THE FOOT (BOTTOM)
CLEAN, CRUSHED, ANGULAR STONE
3, 357, 4, 467, 5, 56, 57
SURFACE. 2
OF THE CHAMBER.
PLEASE NOTE:
1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED,
ANGULAR NO. 4 (AASHTO M43) STONE".
2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 6" (150 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
3. WHERE INFILTRATION SURFACES MAYBE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAYBE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION
EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS.
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
PERIMETER STONE
(SEE NOTE 6)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (300
SC -740
END CAP
SUBGRADE SOILS ,
(SEE NOTE 4)
'TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED
STALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,
INCREASE COVER TO 24" (600 mm).
6" (150 mm) MIN
30"
® ® (760 mm)
(150 mm) MIN
51" (1295 mm)
NOTES:
1. SC -740 CHAMBERS SHALL CONFORM TO THE REQUIREMENTS OF ASTM F2418 "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS",
OR ASTM F2922 "STANDARD SPECIFICATION FOR POLYETHYLENE (PE) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
2. SC -740 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION
CHAMBERS".
3. "ACCEPTABLE FILL MATERIALS" TABLE ABOVE PROVIDES MATERIAL LOCATIONS, DESCRIPTIONS, GRADATIONS, AND COMPACTION REQUIREMENTS FOR FOUNDATION, EMBEDMENT, AND FILL
MATERIALS.
4. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE
WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
5. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
6. ONCE LAYER'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL
REQUIREMENTS OF LAYER'C' OR'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
8'
18" (2.4 m)
(450 mm) MIN` MAX
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 6" (150 mm) MIN
12" (300 mm) TYP
W a �' N
W U
Z o
I- z w -
W U
J = z
N
O > o U o
U
(n O
LLJ r N o
Q co
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a
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� N
U F
F O w
¢ 12� w
o a E
0
w
� O a
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Z a
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SHEET
3 of 6
PROPOSEDLAYOUT
60 STORMTECH SC -740 CHAMBERS
10 STORMTECH SC -740 END CAPS
6 STONE ABOVE (in)
6 STONE BELOW (in)
40 % STONE VOID
5,181 INSTALLED SYSTEM VOLUME (CF)
(PERIMETER STONE INCLUDED)
2,519 SYSTEM AREA (ft')
246 SYSTEM PERIMETER (ft)
PROPOSED ELEVATIONS
MAXIMUM ALLOWABLE GRADE (TOP OF PAVEMENT/UNPAVED):
MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC):
MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC):
MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT):
MINIMUM ALLOWABLE GRADE (TOP OF RIGID PAVEMENT):
TOP OF STONE:
TOP OF SC -740 CHAMBER:
12" TOP MANIFOLD INVERT:
12" BOTTOM CONNECTION INVERT:
24" ISOLATOR ROW INVERT:
BOTTOM OF SC -740 CHAMBER:
BOTTOM OF STONE:
RING & COVER
RIM ELEV. - 878.50
6' DIA PRECAST CONCRETE
CONE
880.24
874.24
873.74
873.74
873.74
872.74 6' DIA PRECAST CONCRETE
872.24 CATCH BASIN
870.78
869.84
869.75
869.74
869.24 FLO
12" ADS N-12
INV IN - 869.74
SLOPE BOTTOM W/ GROUT -
OU TLE
PROPOSED 30" NYLOPLAST
MAXIMUM INLET FLOW 4.2 CFS
(24" SUMP MIN)
FROM JB -10
INV = 872.74
�J
p11
12" X 12" ADS N-12 TOP MANIFOLD
INVERT 12.5" ABOVE CHAMBER BASE
(SEE NOTES)
12" ADS N-12 BOTTOM CONNECTION
INVERT 1.2" ABOVE CHAMBER BASE
(SEE NOTES) r
PROPOSED OUTLET CONTROL STRUCTURE
MAXIMUM OUTLET FLOW 4.0 CFS
SEE DETAIL ABOVE
COVER ENTIRE ISOLATOR ROW WITH ADS
GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE
8'(2.4 m) MIN WIDE
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM PURE INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
CATCH BASIN
OR
MANHOLE
SUMP DEPTH TBD BY
SITE DESIGN ENGINEER
(24" [600 mm] MIN RECOMMENDED)
NOTES
• MANIFOLD SIZE TO BE DETERMINED BY SITE DESIGN ENGINEER. SEE TECH SHEET #7 FOR MANIFOLD SIZING GUIDANCE.
• DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE
NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD.
\�J
6' DIA PRECAST
CATCH BASIN
100 TEAR Si VOLU
60 YEAR 11 1%1
J5 YEAR STOR yOLU
0 YEAR 5, VOLU
12 BOT. CON.
INV. 869.84
6" CONCRETE BAFFLEWALL
SEE SECION, THIS SHEET
18" RCP
INV OUT -
869.24
L STRU CTURE
P18 FLO
97.46'
87.01'
24" PREFABRICATED END CAP, PART# SC740EPE24B
TYP OF ALL SC -740 24" CONNECTIONS AND ISOLATOR
ROWS
INSPECTION PORT
ISOLATOR ROW
PLACE MINIMUM 12.5' OF ADS GEOSYNTHETICS
315WTK WOVEN GEOTEXTILE OVER BEDDING
STONE AND UNDERNEATH CHAMBER FEET FOR
SCOUR PROTECTION AT ALL CHAMBER INLET
ROWS
SC -740 CHAMBE
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PRE -FABRICATED END CAP
PART #: SC740EPE24B
SMG PROPERTIES SC -740 ISOLATOR ROW DETAIL
10 SECTION THROUGH BAFFLE WALL
NOT TO SCALE
PROPOSED 30" NYLOPLAST
MAXIMUM INLET FLOW 6.2 CFS
(24" SUMP MIN)
FROM JB -11
INV = 872.74
P16 Q
12
INV(SE" X 12" ADS N-12 TOP MANIFOLD
ERT 12.5" ABOVE CHAMBER BASE n
E NOTES) N N
NTS
40 END CAP
5WTK WOVEN
GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS
5'(1.5 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
INSPECTION & MAINTENANCE
CARO',.,,
STEP 1)
INSPECT ISOLATOR ROW FOR SEDIMENT
CONCRETE COLLAF
A. INSPECTION PORTS (IF PRESENT)
PAVEMENT
= ; = 7365
SEAL
A.1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
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A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
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A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
8/21/17
A.4. LOWER A CAMERA INTO ISOLATOR ROW FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL)
A.5. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
B. ALL ISOLATOR ROWS
B.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW
CONCRETE SLAB
B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE
8" (200 mm) MIN THICKNESS
i) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY
ii) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE
B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
FLEXSTORM CATCH Il
PART# 6212NYFA
STEP 2)
CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESS
WITH USE OF OPEN GRATE
A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED
B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN
C. VACUUM STRUCTURE SUMP AS REQUIRED
6" (150 mm) INSERTA TEE
PART# 6P26FBSTIP'
STEP 3)
REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS.
INSERTA TEE TO BE CENTEREC
ON CORRUGATION CREST
STEP 4)
INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM.
1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS
OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS.
2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY.
TH
CONCRETE COLLAR NOT REQUIRED
FOR UNPAVED APPLICATIONS
12" (300 mm) NYLOPLAST INLINE
DRAIN BODY W/SOLID HINGED
COVER OR GRATE
PART# 2712AG61P`
SOLID COVER: 1299CGC'
GRATE: 1299CGS
6" (150 mm) SDR35 PIPE
SC -740 CHAMBER
THE PART# 2712AG61PKIT CAN BE
USED TO ORDER ALL NECESSARY
COMPONENTS FOR A SOLID LID
INSPECTION PORT INSTALLATION
SC -740 6" INSPECTION PORT DETAIL
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