HomeMy WebLinkAbout23SITE2 412MapleAve StormwaterManPlan Rec021523TH-1
TH-2
21
0
2
0
0
19
0
180
1
7
0
1
6
0
150210
200
190
180
1
70
D
OUTLET CONTROL
STRUCTURE 'OCS-1'
TF = 186.0
15" INV. IN = 176.55
6" LOW FLOW ORFICE = 179.0
WEIR ELEV. = 180.25
ADS STORMTECH MC-3500
SUBSURFACE INFILTRATION SYSTEM AREA 'A'
BOTTOM OF STONE ELEV. = 175.65
BOTTOM OF CHAMBER ELEV. = 176.40
TOP OF CHAMBER ELEV. = 180.15
TOP OF STONE ELEV. = 181.15
TOP OF PAVEMENT ELEV. (MIN REQ'D) = 183.80
TOP OF PAVEMENT ELEV. (PROVIDED) = 185.50
15" STUB INV. IN = 176.55
15" STUB INV. OUT = 178.35
33 LF x 15" HDPE
S=0.009 FT./FT.
TYPE 'C' CB-1
TF = 185.5
15" INV. = 177.0
TYPE 'C' CB-2
TF = 181.0
15" INV. OUT (NW) = 176.85
42 LF x 15" HDPE
S=0.2511 FT./FT.
FLARED END SECTION 'FES-1'
15" INV. = 166.00
STANDARD RIP RAP
188188 187
184183182181180179178177176175174
173 17118
6
187186185
186185184
183186
170169168167172166165164163162RAIN GARDEN 'A'
BOTTOM = 183.0
SPILLWAY = 185.0
TOP OF BERM = 185.3
RAIN GARDEN 'B'
BOTTOM = 156.0
SPILLWAY = 158.0
TOP OF BERM = 158.3
NEW LIMIT OF CLEARING (TYP.)
NEW BUILDING
FFE=188.5
NEW PAVEMENT MILLINGS
NEW ACCESSIBLE PARKING
WITH BOLLARD SIGN
APPROXIMATE LIMIT OF PROJECT
15
6
15
5
NEW BITUMINOUS CONCRETE PAVEMENT
NEW BITUMINOUS CONCRETE PAVEMENT - (8' WIDE TYP.)
NEW BITUMINOUS
CONCRETE LIP CURB (BCLC)
D
NEW DRAINAGE MANHOLE MH-1
TF=186.0
12" INV. IN = 176.6
12" INV. OUT = 176.55
12" INV. = 184.0
64 LF x 15" HDPE
S=0.116 FT./FT.
21 LF x 15" HDPE
S=0.021 FT./FT.
NEW 15'(L) RIPRAP SPILLWAY
NEW 15'(L) RIPRAP SPILLWAY
DESCRIPTION OF REVISIONDRAWING
SHEET NUMBER:
H HENGINEERINGASSOCIATES
232 GƂeeœőaœvijlle Aveœƞe
Sƞijte 201
MƼƊtijā, CT 06355
860-980-8008 (O)ͤ 413-579-4488 (M)
ƶƶƶ.ĮĮ-eœħijœeeƂƊ.āoő
OF
CHECKED BY:DATE:
DRAWN BY:DATE:
PROJECT NO.SCALE:DATEAPPR.REV.STAMPPREPARED FOR:PROPERTY ADDRESS:STORMWATER MANAGEMENT PLANNEW INDUSTRIAL DEVELOPMENT412 MAPLE AVENUE, UNCASVILLE-MONTVILLE, CT 06382ADVANCED ASSOCIATES, LLCP.O. BOX 164, UNCASVILLE-MONTVILLE, CT 063822022-0019 1" = 20'
SMM 11/1/2022
SMM 11/1/2022
1 2
SMP-1 1STORMWATER SYSTEM LENGTH REVISED12/6/2022SMMZ:\SHARED\H+H ENGINEERING ASSOCIATES\PROJECTS\2022\2022-0019 - P&H CONSTRUCTION - 410 & 412 MAPLE AVE, MONTVILLE\DWGS\PROPOSED CONDITIONS.DWG Tab: SWM PLAN Saved: 12/6/2022 3:44 PM Plotted: 12/6/2022 3:45 PME
N
S
W
20010
SCALE IN FEET
20
RAIN GARDEN DETAIL
NOT TO SCALE
RAIN GARDEN MAINTENANCE PLAN:
1.PORTION OF BASIN FLOOR/SIDE SLOPES THAT ARE GRASSED SHALL BE MOWED 4" TO 6" AS
NEEDED. GRASS CLIPPINGS, LEAVES AND ACCUMULATED SEDIMENT AND DEBRIS SHALL BE
REMOVED.
2.NO PESTICIDES OR NON-ORGANIC FERTILIZERS SHALL BE USED IN AREAS DRAINING TO THE
RAIN GARDEN.
3.IF THERE IS AN ACCUMULATION OF ORGANIC DEBRIS OR SEDIMENT ON THE FLOOR OF THE
BASIN OR IF PONDED WATER IS REGULARLY OBSERVED MORE THAN 48 HOURS AFTER A
RAINFALL EVENT, THE TOP 6" SHALL BE REMOVED AND THE EXPOSED SOIL SURFACE
ROTOTILLED TO A DEPTH OF 12". SEDIMENTATION SHOULD BE REMOVED WHEN IT IS
VISIBLY DRY AND READILY SEPARATES FROM THE BASIN FLOOR TO MINIMIZE SMEARING.
AFTER THIS WORK HAS BEEN DONE, THE BOTTOM OF THE RAIN GARDEN SHALL BE
RESTORED TO ITS ORIGINAL CONDITION.
RAIN GARDEN CONSTRUCTION NOTES:
1.REMOVE EXISTING TOPSOIL, SURFACE LEAF LITTER, ETC. FROM RAIN GARDEN AREA AND
STOCKPILE FOR REUSE.
2.AVOID COMPACTION OF NATURAL SOILS WITHIN BOTTOM AREA OF RAIN GARDEN BASIN BY
CONSTRUCTION EQUIPMENT.
3.SCARIFY NATURAL SOILS WITHIN THE BOTTOM OF BASIN PRIOR TO PLACING STOCKPILED
TOPSOIL.
4.ALL DISTURBED AREAS SHALL BE FINE GRADED WITH 6" TOPSOIL, RAKED, SEEDED AND
MULCHED IN A TIMELY MANNER. TOPSOIL SHALL BE PLACED IN THE BASIN USING LIGHT
EQUIPMENT. ALLOW SOIL TO SETTLE NATURALLY THROUGH RAIN EVENTS OR PRESOAK
AFTER PLACEMENT.
5.PLACE A 3-INCH LAYER OF WELL-AGED SHREDDED HARDWOOD FREE OF ROOTS, SOIL AND
WEEDS.
6.SEED BOTTOM OF BASIN, SIDE SLOPES AND TOP OF BERM WITH CONSERVATION/WILDLIFE
MIX AT 1 LB/1,750 S.F., OR EQUIVALENT. SEEDING SHALL BE QUICKLY ESTABLISHED AND
MAINTAINED TO PREVENT ANY SILT ACCUMULATION ALONG THE BOTTOM OF THE RAIN
GARDEN. MINIMUM VEGETATIVE COVERAGE OF 90% SHALL BE TARGETED AND MAINTAINED.
7.RAIN GARDEN SHALL NEVER BE USED FOR SEDIMENT CONTROL DURING AN ACTIVE
CONSTRUCTION PERIOD.
8.THE AREA OF THE RAIN GARDEN SHALL BE MARKED OFF BY APPROPRIATE FENCING TO
PREVENT THE MOVEMENT OF CONSTRUCTION VEHICLES OVER AND THE POSSIBLE
COMPACTION OF THE NATURAL SOILS.
9.DURING CONSTRUCTION, SEDIMENT SHALL BE PREVENTED FROM ENTERING THE AREAS OF
THE RAIN GARDEN. THE CONTRACTOR SHALL ENSURE THAT THE AREAS DRAINING TO THE
RAIN GARDEN ARE STABILIZED IN A TIMELY MANNER AND MAINTAINED OVER THE ENTIRE
AREA DRAINING TO THE RAIN GARDEN.
RAIN GARDEN PLANT LIST
BOTANICAL NAME COMMON NAME QUANTITIES SIZERAIN GARDEN 'A'RAIN GARDEN 'B'
CEPHALANTHUS
OCCIDENTALIS BUTTON BUSH 4 4 3'-4'
CLETHRA ALNIFOLIA SWEET
PEPPERBUSH 4 4 3'-4'
LLEX VERTICILLATA FEMALE
WINTERBERRY 10 10 3'-4'
LLEX VERTICILLATA MALEWINTERBERRY 2 2 3'-4'
NOTE: ALL PLANTINGS SHALL BE NON-INVASIVE AND NATIVE SPECIES.
SOURCE: 2004 CONNECTICUT STORMWATER QUALITY MANUAL, PREPARED BY THE CONNECTICUT DEPARTMENT OF
ENVIRONMENTAL PROTECTION
TEST PIT RESULTS
DATE: SEPTEMBER 22, 2022
RECORDED BY: RICHARD SNARSKI, CPSS
(NEW ENGLAND ENVIRONMENTAL SERVICES)
WITNESSED BY: SEAMUS MORAN, P.E.
(H+H ENGINEERING)
TEST HOLE 1
0"-46"FILL
46"-122"OLIVE GRAVELLY SANDY LOAM WITH
WEATHERED ROCK (FIRM)
MOTTLING @ 98"
NO GROUNDWATER
NO REFUSAL
TEST HOLE 2
0"-10"FILL
10"-31"DARK YELLOWISH BROWN FINE SANDY
LOAM (FRIABLE)
31"-89"OLIVE GRAVELLY SANDY LOAM WITH
WEATHERED ROCK
MOTTLING @ 87"
NO GROUNDWATER
NO REFUSAL
PERMEABILITY RESULTS
CONDUCTED BY: RICHARD SNARSKI, CPSS
(NEW ENGLAND ENVIRONMENTAL SERVICES)
SAMPLE COLLECTION DATE: SEPTEMBER 22, 2022
TESTING METHOD: THE FALLING HEAD METHOD
TEST HOLE SAMPLE DEPTH
(INCHES)
PERMEABILITY
(FT/DAY)
1 87 9.6
INSERTA TEE
CONNECTION
CONVEYANCE PIPE
MATERIAL MAY VARY
(PVC, HDPE, ETC.)
PLACE ADSPLUS WOVEN GEOTEXTILE
(CENTERED ON INSERTA-TEE INLET) OVER
BEDDING STONE FOR SCOUR PROTECTION
AT SIDE INLET CONNECTIONS. GEOTEXTILE
MUST EXTEND 6" (150 mm) PAST CHAMBER
FOOT
INSERTA TEE TO BE
INSTALLED, CENTERED
OVER CORRUGATION
SIDE VIEWSECTION A-A
A
A
DO NOT INSTALL
INSERTA-TEE AT
CHAMBER JOINTS
(X)
CHAMBER MAX DIAMETER OF
INSERTA TEE
HEIGHT FROM BASE OF
CHAMBER (X)
SC-310 6" (150 mm)4" (100 mm)
SC-740 10" (250 mm)4" (100 mm)
DC-780 10" (250 mm)4" (100 mm)
MC-3500 12" (300 mm)6" (150 mm)
MC-4500 12" (300 mm)8" (200 mm)
MC-7200 12" (300 mm)8" (200 mm)
INSERTA TEE FITTINGS AVAILABLE FOR SDR 26, SDR 35, SCH 40 IPS
GASKETED & SOLVENT WELD, N-12, HP STORM, C-900 OR DUCTILE IRON
NOTES:
·PART NUMBERS WILL VARY BASED ON INLET PIPE
MATERIALS. CONTACT STORMTECH FOR MORE
INFORMATION.
·CONTACT ADS ENGINEERING SERVICES IF INSERTA TEE
INLET MUST BE RAISED AS NOT ALL INVERTS ARE
POSSIBLE.
PART #STUB B C
MC3500IEPP06T 6" (150 mm)33.21" (844 mm)---
MC3500IEPP06B ---0.66" (17 mm)
MC3500IEPP08T 8" (200 mm)31.16" (791 mm)---
MC3500IEPP08B ---0.81" (21 mm)
MC3500IEPP10T 10" (250 mm)29.04" (738 mm)---
MC3500IEPP10B ---0.93" (24 mm)
MC3500IEPP12T 12" (300 mm)26.36" (670 mm)---
MC3500IEPP12B ---1.35" (34 mm)
MC3500IEPP15T 15" (375 mm)23.39" (594 mm)---
MC3500IEPP15B ---1.50" (38 mm)
MC3500IEPP18TC
18" (450 mm)
20.03" (509 mm)---MC3500IEPP18TW
MC3500IEPP18BC ---1.77" (45 mm)MC3500IEPP18BW
MC3500IEPP24TC
24" (600 mm)
14.48" (368 mm)---MC3500IEPP24TW
MC3500IEPP24BC ---2.06" (52 mm)MC3500IEPP24BW
MC3500IEPP30BC 30" (750 mm)---2.75" (70 mm)
NOMINAL CHAMBER SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH)77.0" X 45.0" X 86.0" (1956 mm X 1143 mm X 2184 mm)
CHAMBER STORAGE 109.9 CUBIC FEET (3.11 m³)
MINIMUM INSTALLED STORAGE*175.0 CUBIC FEET (4.96 m³)
WEIGHT 134 lbs.(60.8 kg)
NOMINAL END CAP SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH)75.0" X 45.0" X 22.2" (1905 mm X 1143 mm X 564 mm)
END CAP STORAGE 14.9 CUBIC FEET (0.42 m³)
MINIMUM INSTALLED STORAGE*45.1 CUBIC FEET (1.28 m³)
WEIGHT 49 lbs.(22.2 kg)
*ASSUMES 12" (305 mm) STONE ABOVE, 9" (229 mm) STONE FOUNDATION, 6" (152 mm) STONE
BETWEEN CHAMBERS, 6" (152 mm) STONE PERIMETER IN FRONT OF END CAPS AND 40% STONE
POROSITY.
90.0" (2286 mm)
ACTUAL LENGTH
86.0" (2184 mm)
INSTALLED
BUILD ROW IN THIS DIRECTION
NOTE: ALL DIMENSIONS ARE NOMINAL
LOWER JOINT
CORRUGATION
WEB
CREST
CREST
STIFFENING RIB
VALLEY
STIFFENING RIB
B
C
75.0"
(1905 mm)
45.0"
(1143 mm)
25.7"
(653 mm)
FOOT
77.0"
(1956 mm)
45.0"
(1143 mm)
PARTIAL CUT HOLES AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B"
PARTIAL CUT HOLES AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T"
END CAPS WITH A PREFABRICATED WELDED STUB END WITH "W"
END CAPS WITH A WELDED CROWN PLATE END WITH "C"
UPPER JOINT CORRUGATION
22.2"
(564 mm)
INSTALLED
CUSTOM PARTIAL CUT INVERTS ARE
AVAILABLE UPON REQUEST.
INVENTORIED MANIFOLDS INCLUDE
12-24" (300-600 mm) SIZE ON SIZE
AND 15-48" (375-1200 mm)
ECCENTRIC MANIFOLDS. CUSTOM
INVERT LOCATIONS ON THE MC-3500
END CAP CUT IN THE FIELD ARE NOT
RECOMMENDED FOR PIPE SIZES
GREATER THAN 10" (250 mm). THE
INVERT LOCATION IN COLUMN 'B'
ARE THE HIGHEST POSSIBLE FOR
THE PIPE SIZE.
INSPECTION & MAINTENANCE
STEP 1)INSPECT ISOLATOR ROW PLUS 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 PLUS 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 PLUS ROWS
B.1.REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR
ROW PLUS
B.2.USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS
THROUGH OUTLET PIPE
i)MIRRORS ON POLES OR CAMERAS MAY BE 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 PLUS 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.
NOTES
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.
SUMP DEPTH TBD BY
SITE DESIGN ENGINEER
(24" [600 mm] MIN RECOMMENDED)
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PARTIAL CUT END CAP PART #:
MC3500IEPP24BC OR MC3500IEPP24BW
ONE LAYER OF ADSPLUS175 WOVEN GEOTEXTILE BETWEEN
FOUNDATION STONE AND CHAMBERS
8.25' (2.51 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
CATCH BASIN
OR MANHOLE
COVER PIPE CONNECTION TO END
CAP WITH ADS GEOSYNTHETICS 601T
NON-WOVEN GEOTEXTILE
MC-3500 CHAMBER MC-3500 END CAP
OPTIONAL INSPECTION PORT
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
ELEVATED BYPASS MANIFOLD
INSTALL FLAMP ON 24" (600 mm) ACCESS PIPE
PART #: MC350024RAMP
NOTES
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.
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION VALLEY.
STORMTECH CHAMBER
CONCRETE COLLAR
PAVEMENT
12" (300 mm) MIN WIDTH
CONCRETE SLAB
6" (150 mm) MIN THICKNESS
8" NYLOPLAST INSPECTION PORT
BODY (PART# 2708AG4IPKIT) OR
TRAFFIC RATED BOX W/SOLID
LOCKING COVER
CONCRETE COLLAR NOT REQUIRED
FOR UNPAVED APPLICATIONS
4" (100 mm)
SDR 35 PIPE
4" (100 mm) INSERTA TEE
TO BE CENTERED ON
CORRUGATION VALLEY
NOTES:
1.CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS"
CHAMBER CLASSIFICATION 45x76 DESIGNATION SS.
2.MC-3500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
3.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.
4.PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
5.REQUIREMENTS FOR HANDLING AND INSTALLATION:
·TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS.
·TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3”.
·TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/FT/%.
AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS.
8'
(2.4 m)
MAX
12" (300 mm) MIN77" (1956 mm)
12" (300 mm) MIN
6"
(150 mm) MIN
6" (150 mm) MIN
PERIMETER STONE
(SEE NOTE 4)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
MC-3500
END CAP SUBGRADE SOILS
(SEE NOTE 3)
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 9" (230 mm) MIN
ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
D
C
B
A
*TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED
INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,
INCREASE COVER TO 24" (600 mm).
45"
(1143 mm)
18" (450 mm)
MIN*
ACCEPTABLE FILL MATERIALS: STORMTECH MC-3500 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 FOR 'A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 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.
4.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.
MATERIAL LOCATION DESCRIPTION AASHTO MATERIAL
CLASSIFICATIONS COMPACTION / DENSITY REQUIREMENT
D
FINAL FILL: FILL MATERIAL FOR LAYER 'D' STARTS FROM THE
TOP OF THE 'C' LAYER TO THE BOTTOM OF FLEXIBLE
PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT
PAVEMENT SUBBASE MAY BE PART OF THE 'D' LAYER
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS.
CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.N/A
PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
PREPARATION REQUIREMENTS.
C
INITIAL FILL: FILL MATERIAL FOR LAYER 'C' STARTS FROM THE
TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 24" (600 mm)
ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT
SUBBASE MAY BE A PART OF THE 'C' LAYER.
GRANULAR WELL-GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
PROCESSED AGGREGATE.
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
LAYER.
AASHTO M145¹
A-1, A-2-4, A-3
OR
AASHTO M43¹
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10
BEGIN COMPACTIONS AFTER 24" (600 mm) OF MATERIAL OVER
THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
12" (300 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
PROCESSED AGGREGATE MATERIALS.
B
EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS
FROM THE FOUNDATION STONE ('A' LAYER) TO THE 'C' LAYER
ABOVE.
CLEAN, CRUSHED, ANGULAR STONE AASHTO M43¹
3, 4
A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE
SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.CLEAN, CRUSHED, ANGULAR STONE AASHTO M43¹
3, 4 PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE.2,3
NO COMPACTION REQUIRED.
NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL
FOR A PROPER FIT IN END CAP OPENING.
12" (300 mm)
MIN SEPARATION
12" (300 mm) MIN INSERTION
12" (300 mm)
MIN SEPARATION
12" (300 mm)
MIN INSERTION
MANIFOLD HEADER
MANIFOLD STUB
STORMTECH END CAP
MANIFOLD HEADER
MANIFOLD STUB
PLAN VIEW
SIDE VIEW
OUTLET PIPE 1
WEIR MOUNTING
ANGLES
DETAIL OF MOUNTING
WEIR PLATE TO INNER
WALL OF STRUCTURE
WEIR PLATE DETAIL
2"2"
6"
4.0'*
5.0'*
6"*
10"
INLET PIPE
TOP OF PLATE
ELEV. B
OUTLET PIPE INV.
ELEV. D
INLET PIPE INV.
ELEV. C
WEIR
MOUNTING
ANGLES
TF ELEV. A
WEIR TOP OF PLATE
ELEV. B
INLET/OUTLET CONTROL STRUCTURE ELEVATION SUMMARY TABLE
STRUCTURE ID TOP OF FRAME
ELEV. A
TOP OF WEIR PLATE
ELEV. B
INLET PIPE INVERT
ELEV. C
OUTLET PIPE INVERT
ELEV. D
OCS-1 186.0 180.25 176.55 (15")179.0 (6")
NOTE:
*5' OR 6' DIA. PRECAST BASES MAY BE USED WHEN REQUIRED DUE TO SIZE OR NUMBER OF PIPES AT THE MANHOLE.
PRECAST REDUCERS WILL BE PLACED ABOVE THE 5' AND 6' BASES. WALL THICKNESS TO INCREASE 1" FOR EACH 1' OF
INSIDE DIAMETER INCREASE.
OUTLET CONTROL STRUCTURE DETAIL
NOT TO SCALE
OUTLET CONTROL STRUCTURE (OCS)
NOT TO SCALE
MC-3500 ISOLATOR ROW PLUS DETAIL
NOT TO SCALE
MC-3500 CROSS SECTION DETAIL
NOT TO SCALE
4" PVC INSPECTION PORT DETAIL
(MC SERIES CHAMBER)
NOT TO SCALE
4" PVC INSPECTION PORT DETAIL
(MC SERIES CHAMBER)
NOT TO SCALE
INSERTA-TEE SIDE INLET DETAIL
NOT TO SCALE
MC-3500 TECHNICAL SPECIFICATIONS
NOT TO SCALE
4" DIA. SMOOTH
WALL HDPE ASREQUIRED
INJECTION
MOLDED ST
90° BEND
INSERT INJECTION
MOLDED, GASKETED
SPIGOT BY BELL REDUCER
CAST IRON
DOWNSPOUT
ADAPTER
NOTES:
1.PRECAST CONCRETE CATCH BASIN COMPONENTS SHALL CONFORM TO CTDOT FORM 817 STANDARD SPECIFICATION FOR ROADS, BRIDGES AND INCIDENTAL
CONSTRUCTION AND CTDOT HIGHWAY STANDARD SHEETS HW-507_04, HW-507_07 & HW-507_08, AS AMENDED.
2.THIS DETAIL IS BASED ON CTDOT PRECAST CONCRETE TYPE "C" & "CL" CATCH BASIN COMPONENTS, (UNDER 10' DEEP SHOWN).
3.REINFORCING STEEL DEFORMED BARS ARE NOT SHOWN AND SHALL CONFORM TO LATEST CTDOT STANDARDS & SUPPLEMENTALS AND ASTM
SPECIFICATION A615, GRADE 60, MINIMUM COVER 2" UNLESS OTHERWISE NOTED.
4.METHOD OF MANUFACTURE SHALL BE WET CAST.
5.SUMP SECTION SHALL BE MONOLITHIC.
6.DESIGN LOAD SHALL BE AASHTO H-20.
REFERENCE: CT DOT HIGHWAY STANDARDS, SHEET HW_507_04, HW-507_07 & HW-507_08, CT DOT FORM 817, AND UNITED CONCRETE PRODUCTS, AUGUST 2015
SUMP INSIDE 18"
OUTSIDE 24"
5'-4" TYPE "C" & "CL" UNDER 10'
8"
12"
OUTLET/INLET
PIPES (SEE PLAN)
CORBEL HEIGHT VARIES8" & 12"
RISER
HEIGHTS VARIES
1'-0" MIN. TO
4'-0" MAX.
GRADE RING HEIGHT VARIES2", 4" & 6" (IF REQUIRED)UNDER 10 FEET TO TOP OF FRAME4'-4" TYPE "C" & "CL" UNDER 10'6'-0" FOR GREATER THAN 10 FEET
DEEP & LESS THAN 20 FEET DEEP
1'-3"11"2'-2"
3'-0"±
8"∅ K.O. FOR
UNDERDRAIN
IF REQ'D
4'-4" FOR LESS THAN 10
FEET DEEP
MORTAR JOINTS
ABOVE PIPE (TYP.)
BUTYL RUBBER
JOINTS BELOW
PIPE (TYP.)
KNOCK OUT
AS REQUIRED
6" MINIMUM
CLEARANCE
AROUND ENTIRE
O.D. OF PIPE SIZE
AT OPENING
4" MIN.
TOP & BOTTOM
REDUCER DIMENSION FOR TYPE "C"
1'-3 1/2"1'-3 1/2"2'-9"1'-4"1'-4"1'-8"REDUCER DIMENSION FOR TYPE "CL"
4'-0" TYPE "C" & "CL"3'-0" TYPE "C" & "CL"4'-0"
5'-4" FOR LESS THAN 10 FEET DEEP
5'-0" FOR GREATER THAN
10 FEET DEEP & LESS
THAN 20 FEET DEEP
8"
12"
A BPROVIDE ADEQUATE
BEDDING AS REQUIRED
BY CT DOT FORM 817
3'-0"
6'-0" TYPE "C" & "CL" OVER 10'5'-0" TYPE "C" & "CL" OVER 10'GUTTER LINE
OUTLET HOOD
IF REQUIRED
TYPE "C" AND "CL" PRECAST CONCRETE CATCH BASIN DETAILS24" MIN.PLAN
TYPICAL JOINT
BELOW PIPE INVERT
TYPICAL JOINT
ABOVE PIPE INVERT
SECTION BSECTION A
INJECTION MODED ST 45° WYE
4" DIA. SMOOTH WALL
HDPE AS REQUIRED
INJECTION MOLDED ST
45° BEND
CLEANOUT SLEEVE8"FINISHED
GRADE
CAST IRON TOP
10" SQ
DOWNSPOUT
4" DIA. SMOOTH WALL
HDPE AS REQUIRED
INJECTION MODED ST 45° WYE
NYOPLAST
CLEAN OUT
END CAP
FINISHED
GRADE
CLEAN OUT TELL-TALE
MARKER 8"x8"
LUESTONE OR CMU
DOWNSPOUT
BUILDING FACE
DOWNSPOUT
ADAPTER
ROOF DRAIN
MANIFOLD
PER PLAN
INJECTION MOLDED
WT TEE FITTING
ROOF DRAIN DOWNSPOUT CONNECTION
DOWNSPOUT CONNECTION
AND CLEANOUT FOR SIDEWALKAND PATIOS
DOWNSPOUT CONNECTIONAND CLEANOUT FOR LAWN ANDLANDSCAPE AREAS
NOT TO SCALENOT TO SCALE
1'-3 1/2"1'-3 1/2"2'-9"
FULL
MORTAR
BED
TWO ROWS
OF BUTYL
RUBBER DESCRIPTION OF REVISIONDRAWING
SHEET NUMBER:
H HENGINEERINGASSOCIATES
232 GƂeeœőaœvijlle Aveœƞe
Sƞijte 201
MƼƊtijā, CT 06355
860-980-8008 (O)ͤ 413-579-4488 (M)
ƶƶƶ.ĮĮ-eœħijœeeƂƊ.āoő
OF
CHECKED BY:DATE:
DRAWN BY:DATE:
PROJECT NO.SCALE:DATEAPPR.REV.STAMPPREPARED FOR:PROPERTY ADDRESS:STORMWATER MANAGEMENT DETAILSNEW INDUSTRIAL DEVELOPMENT412 MAPLE AVENUE, UNCASVILLE-MONTVILLE, CT 06382ADVANCED ASSOCIATES, LLCP.O. BOX 164, UNCASVILLE-MONTVILLE, CT 063822022-0019 NOT TO SCALE
SMM 11/1/2022
SMM 11/1/2022
2 2
SMD-1 1NO CHANGES TO THIS SHEET12/6/2022SMMZ:\SHARED\H+H ENGINEERING ASSOCIATES\PROJECTS\2022\2022-0019 - P&H CONSTRUCTION - 410 & 412 MAPLE AVE, MONTVILLE\DWGS\PROPOSED CONDITIONS.DWG Tab: SWM DETAILS Saved: 12/6/2022 3:47 PM Plotted: 12/6/2022 3:47 PM