HomeMy WebLinkAboutAgenda 07_39 Bowdoin Street_drain detailsDSM
DSM
SAL
AS SHOWN
19145
C4.3
A
C
CIVIL ENGINEERING ASSOCIATES, INC.
E
10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403
802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com
APR. 7, 2022
NORTHEAST
TERRITORIES, INC.
20 SOUTH CREST
BURLINGTON, VERMONT
LOT 7
MEADOWLAND
BUSINESS PARK
SOUTH BURLINGTON, VERMONT
NEAGLEY & CHASE
CONSTRUCTION
66 BOWDOIN ST., STE. 100
SOUTH BURLINGTON, VERMONT
STORM MANHOLE STRUCTURE
NOTE: SEE SITE PLAN AND PLAN BELOW
FOR CONNECTION SIZES AND INVERTS
HDPE IN
HDPE OUT
FINISH GRADE
48"Ø
24"12"SUMP(MIN.)6" MIN. CRUSHED
STONE BEDDING
CAST-IN-PLACE FLEXIBLE
MANHOLE SLEEVES
(TYP. FOR ALL PIPES)
PROVIDE FROST-FREE FRAME & COVER
SUITABLE FOR H-20 LOADING, MARKED
"STORM". ADJUST TO MEET FINISH
GRADE
SET FRAME ON FULL
MORTAR BED & SEAL JOINT
ADJUST TO GRADE w/ PRECAST
RISER SECTIONS (12" MAX.)
(BRICKS SHALL NOT BE USED)
WATERTIGHT JOINT USING 1"
MIN. WODTH FLEXIBLE GASKET
(SEAL EXTERIOR JOINTS AND
LIFT HOLES w/ NON-SHRINK
GROUT)
COAT EXTERIOR OF ENTIRE
MANHOLE w/ A WATERTIGHT
SEALANT (2 COATS)
UNDISTURBED
SOIL OR ROCK
PRECAST CONCRETE w/
MONOLITHIC BASE
12"
(MIN.)
HDPE PIPE TO
ISOLATOR ROW
POLYPROPYLENE MANHOLE
STEPS @ 8" O.C.
12" HDPE
12" HDPE
NEW STRUCTURE
SEE PLAN SHEET
FOR RIM & INVERTS
13' MIN. OF AASHTO M288 CLASS 1 WOVEN
GEOTEXTILE BETWEEN BEDDING STONE
AND CHAMBER BOTTOM
13' MIN.
24" HDPE
12" HDPE
INVERT MATCHING
ECCENTRIC MANIFOLD
(BY ADS, INC.)
MAIN HEADER SIZE=12"
STUB SIZE=12"
INSTALL 5.5' WIDE STRIP OF CLASS 1 WOVEN
GEOTEXTILE FULL LENGTH OF BOTTOM OF
CHAMBER ROW. WRAP ENTIRE ISOLATOR
ROWS w/ CLASS 2 NON-WOVEN GEOTEXTILE
140 STORMTECH CHAMBERS (14 ROWS x 10 CHAMBERS) w/
34 TO 2 INCH WASHED, CRUSHED ANGULAR STONE (NO
FINES) ABOVE, BELOW AND BETWEEN CHAMBER ROWS.
TOP OF STONE @ ELEV.=345.38
BASE OF CHAMBERS @ ELEV.=343.55
BOTTOM OF STONE @ ELEV.=343.05
BOTTOM OF SAND @ ELEV.=342.05
INVERT OF 6" UNDERDRAIN @ ELEV. 341.30
BOTTOM OF STONE @ ELEV. 341.05
INVERT MATCHING
ECCENTRIC MANIFOLD
(BY ADS, INC.)
MAIN HEADER SIZE=12"
STUB SIZE=12"
13' MIN. OF AASHTO M288 CLASS 1 WOVEN
GEOTEXTILE BETWEEN BEDDING STONE
AND CHAMBER BOTTOM AT INLETS &
OUTLETS
18" HDPE
NEW MANHOLE STRUCTURE
SEE PLAN SHEET FOR RIM &
INVERTS
STORM CHAMBER
SYSTEM DETAILS
NEAGLEY & CHASE
OFFICE BUILDING
STORMTECH SC-310 CHAMBER SYSTEM
PLAN VIEW DETAIL
STORMTECH SC-310 CHAMBER SYSTEM
OPTIONAL INSPECTION PORT DETAIL18"MIN.96"MAX.STORMTECH SC-310 CHAMBER SYSTEM
TYPICAL CROSS SECTION DETAIL 7.8"5.8"3.8"6"1.9"STORMTECH SC-310 CHAMBER
END CAP DETAIL
5.8"
6.5" 12 PL
STORMTECH SC-310 CHAMBER
CORRUGATION DETAIL
PAVEMENT
FLOOR BOX FRAME & LID w/ S.S.
CAP SCREW LID CLOSURE
CLEANOUT w/ SCREW-IN CAP
CLASS "C" CONCRETE
AASHTO M288 CLASS 2
NON-WOVEN GEOTEXTILE
4" PVC RISER
SC-310 CHAMBER
START END
VALLEY 13 PL
CREST 14 PL
OVERLAP NEXT CHAMBER HERE
BUILD ROW IN THIS
DIRECTION
INSPECTION PORT TO BE
ATTACHED THROUGH
KNOCK-OUT LOCATED AT
CENTER OF CHAMBER
4" DIA.
8" DIA.
6" DIA.
12" DIA.
PAVEMENT
PAVEMENT SUB-BASE
COMPACTED FILL PER
STORMTECH'S TABLE OF
ACCEPTABLE FILL MATERIALS*
AASHTO M288 CLASS 2
NON-WOVEN GEOTEXTILE
34 - 2 INCH WASHED, CRUSHED,
ANGULAR STONE BACKFILL*
(NO FINES)
34 - 2 INCH WASHED, CRUSHED
ANGULAR STONE BENEATH &
AROUND CHAMBER BED*
(NO FINES)
SC-310 END CAP
SC-310 CHAMBER
A.ALL DESIGN SPECIFICATIONS FOR STORMTECH MC-3500 CHAMBERS SHALL BE IN ACCORDANCE WITH THE STORMTECH DESIGN
MANUAL
B.THE INSTALLATION OF STORMTECH MC-3500 CHAMBERS SHALL BE IN ACCORDANCE WITH THE LATEST STORMTECH INSTALLATION
INSTRUCTIONS
C.THE CONTRACTOR IS ADVISED TO REVIEW AND UNDERSTAND THE INSTALLATION INSTRUCTIONS PRIOR TO BEGINNING SYSTEM
INSTALLATION. CALL 1-888-892-2694 OR VISIT WWW.STORMTECH.COM TO RECEIVE A COPY OF THE LATEST STORMTECH INSTALLATION
INSTRUCTIONS
D.CHAMBERS SHALL MEET THE DESIGN REQUIREMENTS AND LOAD FACTORS SPECIFIED IN SECTION 12.12 OF THE LATEST EDITION OF
THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS
FILL MATERIAL FOR LAYER 'F' STARTS FROM
THE TOP OF THE 'E' LAYER TO THE BOTTOM
OF FLEXIBLE PAVEMENT OR UNPAVED FINISH
GRADE ABOVE. NOTE THAT PAVEMENT
SUBBASE MAY BE PART OF THIS LAYER.
FILL MATERIAL FOR LAYER 'E' STARTS FROM
THE TOP OF THE EMBEDMENT STONE ('D'
LAYER) TO 18" [457 mm] ABOVE THE TOP OF
THE CHAMBER. NOTE THAT PAVEMENT
SUBBASE MAY BE A PART OF THIS LAYER.
EMBEDMENT STONE SURROUNDING THE
CHAMBERS FROM THE FOUNDATION STONE
('C' LAYER) TO THE 'E' LAYER ABOVE.
FOUNDATION STONE BELOW CHAMBERS
FROM THE SUBGRADE UP TO THE FOOT
(BOTTOM) OF THE CHAMBER.
ANY SOIL/ROCK MATERIALS, NATIVE
SOILS, OR PER ENGINEER'S PLANS.
CHECK PLANS FOR PAVEMENT SUBGRADE
REQUIREMENTS.
GRANULAR WELL-GRADED
SOIL/AGGREGATE MIXTURES, < 35%
FINES. MOST PAVEMENT SUB-BASE
MATERIALS CAN BE USED IN LIEU OF
THIS LAYER.
N/A
3, 357, 4, 467, 5, 56,
57, 6, 67, 68, 7, 78, 8,
89, 9, 10
3, 357, 4, 467, 5,
56, 57
3, 35, 4, 467, 5,
56, 57
PREPARE PER ENGINEER'S PLANS. PAVED
INSTALLATIONS MAY HAVE STRINGENT MATERIAL
AND PREPARATION REQUIREMENTS.
BEGIN COMPACTION AFTER 12" [305 mm] OF MATERIAL
OVER THE CHAMBERS IS REACHED. COMPACT
ADDITIONAL LAYERS IN 6" [152 mm] LIFTS TO A MIN. 95%
STANDARD PROCTOR DENSITY. ROLLER GROSS VEHICLE
WEIGHT NOT TO EXCEED 12,000 lbs [53 kN]. DYNAMIC
FORCE NOT TO EXCEED 20,000 lbs [89 kN].
NO COMPACTION REQUIRED.
PLATE COMPACT OR ROLL TO ACHIEVE A 95%
STANDARD PROCTOR DENSITY².
MATERIAL LOCATION DESCRIPTION COMPACTION/DENSITY REQUIREMENTAASHTO M43
DESIGNATION¹
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. AS AN ALTERNATE TO PROCTOR TESTING AND FIELD DENSITY MEASUREMENTS ON OPEN GRADED STONE, STORMTECH COMPACTION
REQUIREMENTS ARE MET FOR 'A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9” [229 mm] (MAX) LIFTS USING TWO FULL
COVERAGES WITH AN APPROPRIATE 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.
ACCEPTABLE FILL MATERIALS: STORMTECH SC-310 CHAMBER SYSTEMS
C
D
E
F
CLEAN, CRUSHED, ANGULAR STONE,
NOMINAL SIZE DISTRIBUTION BETWEEN
3/4 - 2 INCH [19 - 51 mm]
CLEAN, CRUSHED, ANGULAR STONE,
NOMINAL SIZE DISTRIBUTION BETWEEN
3/4 - 2 INCH [19 - 51 mm]
DRAINAGE SAND: PROVIDE 12" LAYER OF
FILTER SAND ABOVE LAYER 'A'ASTM C-33
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT
SURFACE (NOTE 2 & 3)B FINE AGGREGATE CONCRETE SAND OR
EQUAL
C
D
E
F
96"MAX.18"MIN.6"MIN.16"6"6"12" MIN.34"
THE INSTALLED CHAMBER SYSTEM SHALL PROVIDE THE LOAD
FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN
SPECIFICATIONS SECTION 12.12 FOR EARTH AND LIVE LOADS, w/
CONSIDERATION FOR IMPACT AND MULTIPLE VEHICLE PRESENCE.
GRANULAR WELL GRADED SOIL/AGGREGATE MIXTURES, 35% FINES. COMPACT IN 6"
LIFTS TO 95% PROCTOR DENSITY. SEE THE TABLE OF ACCEPTABLE FILL MATERIALS
IN STORMTECH'S DESIGN MANUAL, INSTALLATION MANUAL, OR
WWW.STORMTECH.COM
FOR UNPAVED INSTALLATION WHERE
RUTTING FROM VEHICLES MAY OCCUR,
INCREASE COVER TO 24 INCHES.
AASHTO M288 CLASS 2
NON-WOVEN TEXTILE
34 - 2 INCH WASHED,
CRUSHED, ANGULAR STONE
END CAP
SC-310 CHAMBER
CHAMBERS SHALL MEET ASTM F 2418-09
"STANDARD SPECIFICATION FOR
POLYPROPYLENE (PP) CORRUGATED WALL
STORMWATER COLLECTION CHAMBERS".12"B
6" SLOTTED UNDERDRAIN
BELOW EACH ROW (HOLES
DOWNWARD) CONNECT TO
STORM FILTER TREATMENT
UNIT
DESIGN ENGINEER IS
RESPONSIBLE FOR
ENSURING SUITABILTY
OF SUB-GRADE SOILS
1/20/23 DSM REVISED STORM CHAMBER DESIGN12"A 9"A DRAINAGE STONE: PROVIDE 12" LAYER OF
DRAINAGE STONE ABOVE SUBGRADE 3, 35, 4, 467, 5,
56, 57
PLATE COMPACT OR ROLL TO ACHIEVE A 95%
STANDARD PROCTOR DENSITY².
CLEAN, CRUSHED, ANGULAR STONE,
NOMINAL SIZE DISTRIBUTION BETWEEN
3/4 - 2 INCH [19 - 51 mm]
3/1/23 DSM REVISED STORM CHAMBER DESIGN
3/7/23 DSM REVISED STORM CHAMBER DESIGN
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