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ACCEPTABLE FILL MATERIALS: STORMTECH SC-310 CHAMBER SYSTEMS
AASHTO MATERIAL
COMPACTION / DENSITY
MATERIAL LOCATION
DESCRIPTION
CLASSIFICATIONS
REQUIREMENT
FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS
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
GRADE ABOVE. NOTE THAT PAVEMENT SUBBASE
SUBGRADE REQUIREMENTS.
MATERIAL AND PREPARATION REQUIREMENTS.
MAY BE PART OF THE'D' LAYER
BEGIN COMPACTIONS AFTER 12" (300 mm) OF
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.
LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
C
STONE ('B' LAYER) TO 18" (450 mm) ABOVE THE
OR
WELL GRADED MATERIAL AND 95% RELATIVE
TOP OF THE CHAMBER. NOTE THAT PAVEMENT
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU
AASHTO M43'
DENSITY FOR PROCESSED AGGREGATE
SUBBASE MAY BE A PART OF THE 'C' LAYER.
OF THIS LAYER.
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89,
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
CLEAN, CRUSHED, ANGULAR STONE, NOMINAL SIZE
AASHTO M43'
B
CHAMBERS FROM THE FOUNDATION STONE (W
'C'
DISTRIBUTION BETWEEN 3/4-2 INCH (20-50 mm)
3, 357, 4, 467, 5, 56, 57
NO COMPACTION REQUIRED.
LAYER) TO THE LAYER ABOVE.
FOUNDATION STONE: FILL BELOW CHAMBERS
CLEAN, CRUSHED, ANGULAR STONE, NOMINAL SIZE
AASHTO M43'
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT
A
FROM THE SUBGRADE UP TO THE FOOT (BOTTOM)
DISTRIBUTION BETWEEN 3/4-2 INCH (20-50 mm)
3, 357, 4, 467, 5, 56, 57
SURFACE. 2 3
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 MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE 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
PERIMETER STONE
(SEE NOTE 6)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (300 mm) D
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
'TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED \�
INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY )% 6" (150 mm) 18„
OCCUR, INCREASE COVER TO 24" (600 mm).
_ . a� ,yam • is i,. �,... v— r
- - (450 mm)
16"
(405 mm)
34' (865 mm) �m 6" (150 mm)
JD CAP SUBGRADE SOI-310 LS (150 mm) MIN 12" (300 mm) TYP
(SEE NOTE 5)
NOTES:
1. SC-310 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-310 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" REFERS TO THE ENGINEER RESPONSIBLE FOR THE DESIGN AND LAYOUT OF THE STORMTECH CHAMBERS FOR THIS PROJECT.
5. 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.
6. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
7. 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.
COVER ENTIRE ISOLATOR ROW WITH ADS
GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE
5' (1.5 m) MIN WIDE
STORMTECH HIGHLY RECOMMENDS SC-310 CHAMBER
FLEXSTORM PURE INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
CATCH BASIN
OR
MANHOLE
24" SUMP DEPTH
12" (300 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PRE -FABRICATED END CAP
PART #: SC31OEPE12B
SC-310 ISOLATOR ROW DETAIL
NTS
INSPECTION & MAINTENANCE
STEP 1) INSPECT ISOLATOR ROW FOR SEDIMENT
A. INSPECTION PORTS (IF PRESENT)
A.1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
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
B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE
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.
STEP 2) CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESS
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
STEP 3) REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS.
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.
JRI
20"
SC-310 END CAP
VTK WOVEN
GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS
4' (1.2 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
18" (450 mm) MIN WIDTH
CONCRETE COLLAR
12" (300 mm) NYLOPLAST INLINE
DRAIN BODY W/SOLID HINGED
COVER OR GRATE
PART# 2712AG1 ON
CONCRETE SLABSOLID COVER: 1299CGC
8" (200 mm) MIN THICKNESS //��A� ///��A�' A�//��1 GRATE: 1299CGS
FLEXSTORM CATCH IT
PART#6212NYFX
WITH USE OF OPEN GRATE
10" (250 mm) INSERTA TEE a
PART#1ON12ST311P
INSERTA TEE TO BE CENTERED
ON CORRUGATION CREST
SC-310 INSPECTION PORT DETAIL
Green Lake Engineering, LLC
6045 4th Ave. NE, Seattle, WA 98115
Phone: 206-525-5332
email: bob.kehrli@greenlakeengineerinq.com
Contact : Bob Kehrli, PE
YNVCIVICIN I
NTS
10" (250 mm) ADS N-12
HDPE PIPE
SC-310 CHAMBER
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PORTION OF THE SE 1/4 , NE 1/4 SECTION 4, TWP. 23 N, RGE. 5 E., W.M.
48" D I .
CA_
6" INLET
48" D I A. TYPE 2
CATCH BASIN
6" INLET, INV=449.f
(DIVERSION STRUCTURE #1 ONL
STORMTECH DIVERSION STRUCTURES
SCALE: N.T.S.
CALL 811 BEFORE YOU
E WAS �y SURVEYED: SCALE:
° H HANSEN SURVEYING HORIZONTAL: AD 11983/1991
Q- -A DESIGNED: SCALE
N R. KEHRLI, P.E.
089 O ��� DRAWNR. KEHRLI, P.E. DATUM
ONE INCH
CHECKED: AT FULL SCALE
s/ONAL C. WILLIAMS, P.E. IF NOT ONE INCH
NO. REVISION BY DATE A P P R APPROVED: SCALE ACCORDINGLY
CITY OF
RENTON
Planning/Building/Public Works Dept.
DIG
S
)OVIDE REINFORCING, #4
@ 12" O.C. IN WEIR.
ZOUT WEIR WALL TO
OF CATCHBASIN.
J TLE T TO
FOR ROW
49.88
RECOMMENDED FOR APPROVAL
BY: DATE:
BY: DATE:
BY: DATE:
BY: DATE:
WATER MAIN EXTENSION & STORM DRAIN
TUSCANY CONSTRUCTION, LLC
STORMTECH DETAILS
3956 NE 24TH STREET
R-390205 S T
F8/10/2016
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