HomeMy WebLinkAboutSDP200800038 Plan - Other (not approved) Stormwater Management Plan 2008-07-300
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BACKFILL COMPACTED TO
95% MODIFIED
PROCTOR DENSITY
UTILITY MARKERS AT
CORNERSNOTE: (ryp.)
PRE -TREATMENT
STRUCTURES
NOT SHOWN
15" INLET
3" (0.08 m)
PAVED
SURFACE
NOTE: FOR COMPLETE MODULE DATA, SEE
APPROPRIATE RAINTANK- SHEET (SINGLE
MODULE, DOUBLE MODULE, TRIPLE MODULE,
QUAD MODEL, OR PENTA MODEL).
GEOGRID BX-1200 (OR EQUAL)
0,91 m) MIN.
24' (0.61 m) TYP.
1_18'(OA6m)MIN.
0.30 m) I
I.RP111-i" 30"
OUTLETE
PIPE
24"(0.61 m)
RAINTANKTm UNITS WRAPPED IN Sl 801
GEOTEXTILE (OR EQUAL)
LOAD RATING: 34 PSI (MODULE ONLY)
WITH ACF COVER SYSTE M) -EM)
EXCAVATION
LINE AND
IMPERMEABLE
LINER WHEN
REQUIRED
SUITABLE STRUCTURALCTURAL
BACKFILL COMPACTED TO
95% MODIFIED
PROCTOR DENSITY
A
RAIN TANK LOAD SPECIF1 CA TIONS
Void Ration
Material 85% recycled Polypropylene + 101/6 Atlantis proprietary selected materials,
Biological & Chemical
Resistance-, Unaffected by molds and algae, soil -bourne chemicals, bacterial and bitumen,
Unconfined Crush Load 34 psi
Long -Term Unconfined creep Test: 90 Dav Dead Load Creeo Test
Metric English
Load Applied 2.85 Vrn 4,01-'i psi
Displacement (90 Days) 1.7mm
r_
0,067':
Total Strain After 90 Days 2.30% 2.3090
Creep Sustained After 90 Days 0.400/c 0.40%
Temprerature 20- 3) 66°F 37.4)
Module Width Length Length Height Height
Units) Width (mm) inches) mere) inches) 1171111111711) inches)
Mini(112) 408 16.06 685 26.97 240 9.45
Single (1) 408 16.06 686 26.97 450 17.72
Double (2) 408 16.06 685 26.97 880 34.65
Triple (3) 408 16.06 686 26.97 1310 51.57
Quad (4) 408 16.06 685 26.97 1740 68.50
Pent (5) 408 16.06 685 26.97 2170 85.43
Module Tank Tank Water Storage Water Storage Number of Plates Tank
Units) Volume (cf) Volume (gal) Volume (CO Volume (gal) Large Small Weight (Itis)
Mini (112) 2.4 17.96 2.27 17.06 4 2* 10
Single (1) 4.44 33,22 4.22 31.56 4 1 4 14
Double (2) 8.69 64.97 8.25 61.72 7 1 8 26
Triple (3) 12.93 96.72 1228 91.88 10 1 12 38
Quad (4) 17.17 128.47 113.31 122.03 13 1 16 50
Pent (5) 21.42 160.21 20.35 152.19
I
16 1 20 62
gi l 911
MAINTENANCE PORT
THIS PORT IS USED TO PUMP WATER INTO THE
SYSTEM AND RE -SUSPEND ACCUMULATED
SEDIMENT SO THAT IT MAY BE PUMPED OUT TO
THE OUTFALL BELOW THE RAIN7ANK SYSTEM.
MINIMUM REQUIRED MAINTENANCE INCLUDES
A QUARTERLY INSPECTION DURNG THE FIRST
YEAR OF OPERATION AND A YEARLY
INSPECTION THEREAFTER. FLUS-1 AS NEEDED.
6"-10" NOTCHES CUT IN
SHADED AREAS
PIPE NOTCHING
PATTERN
m8
witur MIMqpMem
Water Management for Life"
RAIN TANK WEIR & ORIFA CE DE TA IL
T
15
LINV. OF 6" STUB
PIPE= 395.97
NOT TO SCALE
15" OVERFLOW PIPE
6' LONG
0.50%
INV. IN= 397.84
INV. OUT=397.81
15" STUB PIPE
6' LONG
0.50%
INV. IN= 395.97
INV. OUT=395.94
PAIN TANK DIMENSIONS
D-RaintankO (Matnie) specifications
Mint (V2)
leSingle (1)
408
408
16.06
16.06,
685
6
26,97 240 9.45
Oouble (2)
Triple (3)
408
408:
16.06
16;06_
Say
686
26.97
26.97
880 34.85
Quad (4) 408 16.06 686 26.97 1740 68.50
Pinta (5) 408 16.0. 726.87 7 7779 4.
IF 0E , 1!115N 4 11 01-9Mlnl (
1.1Z) 2A0 I 0.01 17,961157.99 2.28 10.06 17,06/ 64.68 212 14 8.76 f197 Single (
1) 4A4 / OA3 3:3.221125.15 I
4.
22 / 0. 12 31.68, 1 47 f9 6, 4 Double (
2) 8,59/0.26 64.97 1245.94 8.251 0.23 61,72 / 233.64 7 f 8 25.99111 .79 Triple(
3) 12.93 / 037 96.721366.113 112,28 0,35 91.68 1;347. 2 2 Quad (
4) 17.1710.49 428.47)486.31 16.31 / 0.46 122,031461.93 16 50122.66 Perna (
5) 21.42 1,13.61 160.211 W.46 2CL,35 10.58. 11 '52-197 J-2 Surface
Area 9151% void Material
85% recycled Polypropylene + 1 5%a Atlantis propriety selected materials Biological &
Chemical .ftarstitance oby Moulds art0to, al tioiti-boiIrna, unaffectedbacteria -,arid, -,arid t tiumsln Service
Temperature -6'C to 55°C (-21,2°F to 131 °F) ASSEMBLY.,
All units are assembled from 4 small plates and 4 large plates. 7INso plates are clipped together to form the bcx structure. Ultimate
Loadf Unconfined Crush Testing: Side Load: Metric
Imperial Metric Imperial Crush
Load 24 t/M2. psi whd 7 b Displacement11mrn
0.433' Displacement 10mm Temperature 8-
i4°C' 46.4-57,2*F Long -Tom
Unconfined Creep Test: 90 Day Dead Load Creep Test Metric imperial
Load Appliat
285t/ Z 41 D-Raintank® (M4trig) tank module under test, Note: Counterweights, load
cell on top of the top pJlaten, Displacement (90 Days) 1.7 Trim 0,067" 00f-atiOn gauge (2 Installed), Data bgger with print out. iiotai Strain Or
Wpoy , I , 2' 2 9 Thermocouple: Thermocouple also Installed. NOtingham Trent Unliveralry, England. ROSUlts indicate
additional performance of the Creep Sustained After
90 Days 0.40% rncdvl- during duty conditions, It is considered that the Teitperattiteffects Of side
leading around the modules are minimal assuming the Modules
are placed horizontally. BACKFILL COMPACTED TO
95% MODIFIED PROCTOR
DENSITY 12"
DIA. PVC
ONTENANCE FRAME AND
COVER
REINFORCED CONCRETE COLLAR
WHERE
REQUIRED GEOGRID
BX-1200 (
OR EQUAL) GEOTEXTILE NON -CORROSIVE-/
NOTCH
BOTTOM SOLID PLATE OF
PIPE SEE
PATTERN PLASTIC,
SLATE OREQUIVALENT11F!
111111 5
111 1F NOTE: THE 15" STUB
PIPE &
THE 15" OVERFLOW PIPE OUTFALL THE RAINTANK SYSTEM INTO STR, 2.
THESE PIPES ARE AN EXTENSION OF THE RAINTANK SYSTEM. THE 15"
STUB PIPES (STR, 2A) ARE DESIGNED TO DETAIN THE POST -DEVELOPMENT
FLOW TO PRE-EXISTING CONDITIONS, SEE SHEET SWM-1 &
DP-3 FOR ROUTINGS, THE OUTFALL PIPE FROM STR, 2 IS AN 18"
PIPE, WHICH CARRIES THE FLOW AND OVERFLOW FROM THE DETENTION SYSTEM, THIS 18"
PIPE (STR. 1) IS LARGER THAN BOTH INLET PIPES (STR. 3 &
9) INTO THE DETENTION SYSTEM. Air-flyttion A. Activation
of the
Filtme unit is pet ONLY by the Supplier. Parchaser is mponsible fm Filterre inlet
protection acid subsequientclean. out cost. This process cannot commente until the project
site is fulle r stabilized and clemed (full lnidseapin& goss eover, fit I
paving and street wee*g ccrmplete4), ttegating the chance of construction materials t
ran iiaatsng the Filteire system. Quie shall 'be taban during construction not, to
damagethe protective throat and top plate's. B. kctivation includes installation of plaritt(
s) and mulch 1kyers as necessary. Maintenance A- Each correctIV installed Filterra4
umit
is to be maintained by the Stipplier, or a SurplieT approved coati actor for a
nuin' mum period of I year. The. cost of this setvi is to be- included in the
price of each Fiftem,& unit, Extended maintenance contracts are available at -Atra cost. upon
request, B. Annual mainterance consist of a
in-aximuni of (2) scheduled visits. Thevisits we scheduled seas-onally; the spring visit
aims to clean tip after winter loads includmig saN and sands- The fiU visit
helps flw-,%-y.stem layremoving excessive leaf litter. C- Eaci maintenance visit consists of the
following tasks. 1- Filter unit inspecticm 2- Foxeir-a
debris, silt.. mudch & trade
remmal 3. Filter wedia t-valuation and recharge
as necessaty 4. Plant health evaluation and pnining or
replacement as necessary 5. Replacement of mulch. 6. Disposat of
all maintemance ieflutse iteaus
7- Mainte=ucee records apdatediiind stored mports
available upon request) D. The beginning and ending date of
Supplie:ts obligation to maintain the installed system shall be detemined by the Supplier
at the time the systems is activateid, Owners must promptly notify the Supplier of any
damage to the pla-at(s), which comstitute(s) an iategf at part of the biareteation
techinclogyPage 30NID VIEW OF PIPFJFAS.RIC
CONNECTION. U
T A N 'X IN T
HE FA B Rl 10 SLIGHTLY ARGER THAN PIPE., PULL TITF FABRIC AROUND
THE PIPE TO CREATE THE'SOCT'
AND THEN SECURE WITH.A HOSE-:OkM?.
i Ix! clb r IN THE - FABRICTO
ALL0N
PIPE F-IPEITANK \-GEOTEXTILE INITERFACF
FABRIC
OPTIONAL
car
PLATE (NDS PAR
S6-BSTITUTED
EOL NON-
CORPOSJVF- HOSE CLAMP
OR TAPE USED
10 FASTEN LINER
To PIPS 70 PREVEN7 RACKFILL,
FROf.4 ENTERING STRU'uTUPE
GEOTEX OVER ff)NAL
CONNECTOR KIDS PART94
2
OR
1TUTEV EQUIVALEW) NON-
CORROSIVF HOSE CLAMP OR
TAPE USED
TO FASTEN LINER
TO PIPES rO PREVENT BA09FILL
FROM ENTERING STRUCTURE 7XTILE FABRIC
RAIMTANKTM 0z ch
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BY:
SRC DATE:
9/17/
07
PROJECT NO.
SHEET
SWM-
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WATER QUALITY SUMMARY
PRE -DEVELOPMENT DRAINAGE AREAS POST -DEVELOPMENT DRAINAGE AREAS
AC.) (AC,)
OFF -SITE TOTAL PERCENT PRE -DEVELOPMENT ON -SITE DRAINAGE OFF -SITE TOTAL PERCENT
N-SITE AREA AREA AREA IMPERVIOUS (%) Situtation PHOSPHOROUS LOADING (LB/YR) AREA AREA AREA IMPERVIOUS (%)
2.84 1.11 3.95 74% #3 0.51 - - - -
3 - 2.84 1,11 3.95 69%
Q) E STORMWATER DETENTION PLAN (2 YEAR)
30 DEVELOPMENT PRE-DEVELOPMENT'G" TIME OF PRE -DEVELOPMENT POST -DEVELOPMENT POST-DEVELOPMENT"C" POST -DEVELOPMENT POST -DEVELOPMENT PRE- PRE-DEVE
5- DRAINAGE AREA DESCRIPTION AREA (ac) VALUE CONCENTRATION (min.) FLOW {cfs) AREA (ac) VALUE UNROUTED FLOW (cfs) ROUTED FLOW (Cfs) DRAINAGE AREA DESCRIPTION DEVELOPMENT V
3 Pre -Development Str. EX4 1.11 0.9 7 4.70 Pre -Development Str. E)(4 11,11
01 Pre -Development Str. EX2 0.2 0-67 5 0.70 Prq-Deyelopment Str. 02 0 2
C: Pre-DeWopment Oberland Flow 0.03 0.45 5 0.07 Ps_-De%dopment Ovedand Flow 0.03
o P.Devdopment D.A- 2.61 0.67 11 6.99 pre -Development D.R. 2.61
1) Post -Development Unroofed Owdand Flow- 5 - 0.10 0.40 0.21 - Post -Development Unroofed O%edand Flow
c Post -Development Unrouted Str. 16 10 - 0.13 0.40 0.21 - Post -Development Unrouted Str, 16
0 Post -Development Unrouted Str. EX4 7 - 0 81 0.90 3.43 -
Post -Development Unrouted Str. EX4i__
Q Post -Development Unrouted Str. 18I 6 - 0.30 0.00 1.32 -
4 Post -Development Unrouted Str. 18
5 Post-De.dopment D.A. I 8 - 1 2.61 1 5-I Past -Development D.A.
a)
0 PRE -DEVELOPMENT FLOW (cfs) = 12.46 POST -DEVELOPMENT FLOW (cfs) - 9.72
0
0
0dC0 General construction notes for Stormwater Management clans:
STORMWATER DETENTION PLAN (10 YEAR)
NTICI ____ _-PlIF-DEVELOPM POSTDEVEI
CONCENTRATION (min.) I FLOW (c fs) AREA (a
7 6.09 -
5 0.90 -
5 0.09 -
11 9.09 -
5 - 0.10,
10 - 0.13
7 - 0.81
6 - 0.30
8 - 1 2.61
PRE -DEVELOPMENT FLOW (cfs) =: 16.18 1
C7) 0 1. All dams and constructed fill to be within 95% of maximum dry density and 2%.of optimum
a
moisture content. All fill material to be approved by a geotechnical engineer. A
n
geotechnical engineer is to be present during construction of dams.
2 2. Pipe and riser joints are to be watertight within stormwater management facilities. t
5 3. For temporary sediment traps or basins which are to be converted to permanent stormwater
1)
C management facilities; conversion is not to take place until the site is stabilized, and
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0
permission has been obtained from the County erosion control inspector. 0
0
I slightly due to an
improvement with sod)
TYPE OF TREATMENT REMOVAL PHOSPHOROUSPOLLUTANTREMOVAL REMOVAL RATE SATISFIED
PHOSPHOROUS OVAL REOUIRED REMOVAL RATE (%) FACILITY RATE REMOVED
LOADING (LBNR) Lpost-Lpre x 1 RRx 1 001Lpost
n/a
YES
0.00 0.00 I (0.12 LBSNR > 0.00
0.51
Filfterra Inlets 65% 0.12
LBSNR)
1.46ac- drains to Filters melts
VALUE UNROUTED FLOW (Cfs) ROUTED FLOW
0.40 0.27 -
0.40 0.28 -
0,90 4.45 -
0,90 1.70 -
0,00 5.92
POST -DEVELOPMENT FLOW (cfs)= 12.62
0.37+0.34+0.50+0.25)
STORMWATER DETENTION PLAN (100 YEAR)
DRAINAGE AREA DESCRIPTION DEVELOPMENT VALUE CONCENTRATION (min.) FLOW (cfs) AREA (ac) VALUE UNROUTED FLOW (Cfs) ROUTED FLOW (Cfs)
Pre,DeWopment Str. EX4 im 0,9 7 9.87
Pre-Dem4opment Str. EX2 0.2 0.67 5 1.47
Pre-Devilopment Overland Flow 0.03 0.45 5 0.15
Pra-DwAcpnnerd D.A. 2.61 0.67 11 14.86
Post_Deweiopmerrt Unrouted 0wriand Flow 5 0.10 0.40 0.35
Post -Development Unrouted Str. 16 10 . 0.13 0.40 0.46 -
Post-Duoopment Unrouted Str, EX4 7 0.81 0,90 7.20 -
Post -Development Unroofed Str. 18 6 0.30 0.90 2.80 -
Post -Development D.A. 8 2.61 0.00 9,67
N OTES:
I
1. SEE SHEET SWM-2 FOR DETAILS ON THE FILTEIRRA UNITS.
2, SEE SHEET SWM-3 FOR DETAILS ON THE RAINTANK SYSTEM.
3, SEE SHEET SWM-4 FOR RAINTANK ROUTING CALCULATIONS.
PRE -DEVELOPMENT FLOW (Cfs) = 26.35 >POST DEVELOPMEtVT FLOW (Cfs) = 20.48
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CURB INLET
FILTER
PLAN VIEW
STANDARD TRANSITION FROM ELEV'* MUST
CURB AND STANDARD TO BE HIGHERGUTTERDEPRESSED
TYP GUTTER (TYP) VTHANELE'S' SLOPE
nLTERM
THROAT CURB
R&L7 THMAT GUTTER
FLOW
GUTTER FLOW
DEPRESSED
GUTTER AT FILTERRA 13YPASS CURB INLET THROAT
OPENING (TYP) FLOWUNE ELEV'& FLOWLME EL"'W ELEVATION
VIEW INTERLOCKING
FILTERRA UNIT STORMWATER JOINT (
TYP) STRUCTURE I
t I , - C
NITLET
PIPE Z (
BY ERS) CONNECT TO
RM DRAIN SM-
35 COUPLING UNDERDIRAIN
SYSTEM CAST INTO PRECAST WALL BY
AMERICAST CROSS
SECTION DATE
08-30-05 —[DWC;- FLP— 1 woLoQ14970
FILTERRAO TYPICAL FLOWLINE AND
OULET PIPE RELATIONSHIP us
PAT 6,277.274 2
STANDARWJ
TRANSITICIN FROM CURS
AND STAND*D: TO DEPKM
MP)
OUTTER (TYP) RA
GUTTER
11,
0W GUITtER "Re CUT. Golkm twlr FLOW
DMWE WCH, OR OTHER 01
PR8SSM MY" AT FOW
OF LQKR 4EVATION FkTOMA
RYPASS RELIEF THROAT
OPEKIPIC (TYP) FLOUILM IM" A! FL*WLDK a" W j;
DPAWING
AVAILABLE IN nF FILE FOMAAT. ELEVATION VIEW FILTERRAS
TYPICAL FLOWUNE RELATIONSHIP
FOR REQUIPIED
EFFECTIPVE BYPASS a
TIT
r- - - - - — — — — — — — — — — — — — — — — — — — —
i
i
F—T--] A
I I t -
J eL&
LVIEW TREE
FRAME MwiNly .. WIZIS11111. CLEAflOff
Ciffat & GRATE AMERICAST GALVANIZED CAST
IN TOP SLAB CAST IN (NOT SHOWN ANGLE NOSING TOP
SLAB TOP SLAB FOR CLARITY) CURB
AND GUT`W,1INTERLOCKING (
EFY OTHERS) JOINT (
TYP) STREET tL
C14
DOWEL BARS 0
12 O.C. MULCH
PROVIDED By AMERICOST I INDFRDRA N SYSTEM FILTER
MEDIA PROVIDED BY AMERICAST I
BY AMERICAST SECTIQ
A —A INLET
SHAPING A (
BY OTHERS) SDR-
35 PVC COUPLING CAST
INTO PRECAST BOX WALL
BY AMERICAST OUTLET
PIPE LOCATION
VARIES) CURB (
BY OTHERS) DESIGNATION
L W, TREE
GRATE QTY &
SIZE OUTLET
PIPE
4
x 6 4--0- 6'1-
0-
1) 30 4" SDR-35 PVC 4
x 8 1) 3X3 4" SDR-35 PVC 6
X 8 61-0. 1) 4x4 4" SDR-35 PVC 6
X 10 6'-0' W-0, 1) 4x4 6' SDR-35 PVC 6
x 12 61-0. 12'--0' 2) 4X4 6- SDR- 2 WC I
DRAWING AVAILABLE IN TIF FILE FORMAT. DATE
12-22-04 DWG: FrNL-2 PRECASTnL1rERRA*
UNIT NARROW
LENOT14 CONFlrxuRA-nON Cupyiij*
0 M4 by A=dc= MID-ATLAN711C REGION US PAT 6.M,27* I
I AM 6,56%W1 PLEASE
PRINT AND FAX OR EMAIL THIS FORM AN
INTERACTIVE PDF FORM IS AVAILABLE ON THE DAKIT CD FOR EASY EMAILING Filterra@
Project Information Sheet Complete &
send to Americast by email, fax or mail. Address:
11352 Virginia Precast Road Ashland,
VA 23005 Toll
Free, (866) 349 3458 Fax: (804) 752-6838 804)
798-6068 Email: design@filterraxom A
Gmwin Idea in Stummwv rilm6an. Engineering
Contact Information Engineering
Firm: [0(1)11.4 -,f C- Current Date: 4-)4-077. Contact:
Phone: 0 o 4) ,C- 4-S- Email: _
jo#n 4D cvlblls - Fwc: C 0 -q Project
Information Project:
Name/number: Regulatory Municipality and State (city, county, etc.): R,
r, D1 'S t 0 E- e-C Filterra@
Details (Email, mail or fax plans to Americast - Acceptable formats are AutoCAD or pdf) Anna
choptq Qhould inphida arndina- drainage areas. stormwater schedules and Filterra@ details. Filterra@
Structure
ID
Internal
L
x W (R) Dimensions
Filterra@
spot
Elevations TC
Fl, Filterra@
Drainage
Area (
ac) Bypass
ID
Bypass
Spot
Elevations TC
Fl, 2.
q6 , 1 2.63 64CJ AAIIA F- Alld
f V14 37IV114
A1114 NZA TC =
Top
Curb, FL = Flow Line Ff'- Detail
on plans CGT Detail on plans FT Flan Notes shown I- 518105 www.
fifterraxein Page9
Tall Free: (
866) 349-3458 6. W—
6- tD r— — — — — — — — — —
t
INLET SHAPING
BY OTHERS)
A A
L-------------- L
I
CURB (BY OTHERS) T— SDR-
35
PVC COUPLING PLAN VIEW
CAST INTO
PRECAST BOX WALL--' OUTLET PIPE
LOCATION VARIES) PLANT AS SUPPLIED CLEAMUT BY
AMERICAST COVER r- (
NOT SHOWN CAST IN
4GA LVANIZED TREE FRAME &
GRATE FOR CLARITY) TOP SLAB
ANGLE NOSING CAST IN
TOP SLAB TOP SLAB
CURB AND
CUTTER BY OTHERS)
1y 1NTERLOCKNGJOINT (TYP) za STREET 0
DOWEL
BARS
it t
III 0 12,
O.C. FILTER MEDIA
PROVIDED 13Y AMERICAST
UNDERDRAIN S
MULCH PROVIDED
BY AMERICAST Y`STEM
BY AMERICAST
0 SECTIONA
DESIGNATION L
W TREE GRATE
OUTLET QrY & SIZE
PIPE 6 x
4 61—o. 4'-0' 1) 3X3 4' SUR-35 PVC 8 x
4 81—o. 4'—O" 1) 3X3 4" SDR-35 PVC 8 X
6 10 X
6 81-C).
io,—o"
61-0.
6l-0.
1) 4.
X4 4" SDR-35 PVC 1) 4X4
5' SDR-35 PVC 12 x
6 12'-C' 6'-0- 2) 4x4 I DRAWING AVAILABLE
IN TIF FILE FORMAT. DATE 12-
22-04 —Tom: FTNW-2 PRECAST FILTERRAO
UNIT OrL NARROW WIDTH
CONFIGURATION fiLLOR MID-ATLJOMC
REGION US PAT 6,277,274 AND 6,
5"321 Filterra Standard
Plan Notes TItterld Construction &
lustaflation
A. Each
unit shall. be constructed at the locations and elevations according to the sizes shown on
ffi-- approved drawings. -A-TiN mo(lificadons to the elevation or location shall be at
the direction of and approved by the Engineer. 13- If
the Filterra" is stored before irLstallation, the top slab must be placed cut t1v, bcw, using The
2.x4 wood pro -%id -A, to prevent any contamination from the site. All mLamal fittings supplied
ff any), must be left in place as per the delivery. C. The
urtit shall be placed on a compacted sub -grade with a minimum 6-inch gravel base matching the
firal grade of the curb line in the area of the unit. The wit to be placed such that
the unit and top slab match tit-, grade of the curb in the area of the unit Compact und-
iLstLzbed sub -grade materials to 95% of inaximuin density at -1- 2% of optimum moisture.
LTmWtable material below sub -grade shall be replaced to the site erigmceT's
approval. D. Outlet
connections shall be aligned and sealed to meet the approved drawing-s with modifications, necessary
to meet site conditions and local regulations, E. Once
the unit is set the inten -0 wooden forms and protective mesh cover must be left intact Remove
only the temporary wooden slipping blocks between the box and top Slab. Tho
fop lid should be sealed onto the box section before bact-filling, using a non - shrink grout,
W rubber or similar waterproof seal. The boards on top of the lid and boards sealed
in the unit's throat must NOT be removed The Supplier (Americast or its aurrized
dealer) will remove these soctions at flue Time of activation. Back -Filling should be
perfonried ill a careful maTmer, bringing [lie apprupiial,e fill iiiawfial up in 6- lifts
on all sides. Precast sections shall be set in a. marmer that will result in a watertight joint.
In all instances, installation of FilteTra"-` uTnt shall. conform to ASTM specification C891 "
Standard Practice for bistaUation of Ujidergroutid Precast Utility Structures", unless
directed otherwise in contract documents. F. i
urb and Rutter ooristnic-ticm (where prcsent) shall ensire that the flow -line of the Filterra!o
units is at a greater elevation than the flow -line of the bypass structure or relief (drop
inlet curb cut or similar). Failure to comply with this guideline may cause failure and/
or damage to the Filterrao em-ironmental devicc- G. Each
Filterra.® unit must receive adequate irrigation to ensure smdval of the living her. This
may be achevod through gutter flow or system duringpericdiOfdFi -T weat ffiIOUgh the
tfeC grate. 0C Y2YO5
W-WWAIlterra,com Tug Free: (ⅆ 345-3456 INLET SHAPING
A (BY
OTHERS) SDR-35
PVC COUPLING CAST INTO
PRECAST BOX WALL BY
AMERICAST (OUTLET PIPE LOCATION
VARIES) CURB (BY
OTHERS) TREE FRAME &
GRATE CAST IN
TOP SLAB i PLANT AS SUPPLIED CLEANOUT COVER
1 BY AMERICAST GALVANIZED CAST IN
TOP SLAB I -(NOT SHOWN FOR CLARITY)
ANGLE NOSING
TOP SLAB
CURB AND GUTTER INTERLOCKING III (
BY
OTHERS) JOINT (TYP)
STREET DOWEL BARS
0 12'
O.C. Z MULCH
PROVIDED
BY AMERICAST UNDERDRAIN SYSTEM FILTER MEDIA
PROVIDED ETY AMERICAST BY AMERICAST
SECTION A —
A DESIGNATION L
W TREE QTY &
SIZE
OUTLET PIPE
6
X
6 6'-0' 6'-0- 1) 3X3 4' SDR-35 PVC DRAWING AVAILABLE
IN TIF FILE FORMAT. DATE_ 12-
22-04 FIST-2 M PRECAST
FILTERRAO
UNIT STANDARD CONROURATION
LLD 'IT U1D4M0
REGION
UANDT623274 Activation fitterld A-
Acfivation of
the Filtarroo -unit is pa1brmed ONLY by the Supplier- Pufolmsef is responsible for Filterrao
inlet protection and subsequent clean out cost. This process cannot commenco until
the prQJ . cot site is fully stabilizcd and c1cancd (M landscaping, grass cover,
final paving and street sweeping , completed), negating the chance of consmetion.
materials contatninating the Filterra"' system. Care shaU be taken during construction
not to damage the protective throat and top plates. B. -ketivation includes
installation o f pl ant(s) and raule h I ayers as nec e s s ary. Maintenance A. Each
correctly
installed FilterraV unit is to be maintained by the Supplier. or a Supplier approved contractor
for a Timmum period of I ycar.Th,: cost of this sonice is to be
included in the price of each Filtenaif-o unit. Extended maintenance ckm-tracts are available at
extra cost upon request. B. Ann-ml
maintenance consists of a ma?dmum of (2) scheduled visits- The Visits are scheduled seasondly; the
spling visit aims to clean up after winter loads iiicludi-ig salts and sands,
The fall visit helps the system by removing excessive leaf litter. C. Each nrainteriwice
nisi consists of (lie following tasks. 1. Filterra", twit
inspection 2. Foreign debris,
silt, mulch & trash removal 3. Filter media
evaluation and recharge as necessary 4. Plant health
evaluation. and pruning a r.-placament as necessary 5, Replacement of
mulch 6. Disposal of
all maintenance refuse items 7. Maintenance records
updated and stored (reports available upon request) D. The beginuirig
and. ending date of Supplier's obligation to inaintain the installed system sliall be
determined by the Supplier at the time the system is activated. Owners must promptly notify
th-. Supplier of any damage to the plant.' s), which constitute(s) an integral part
of the bioret-ention technology. 062MO5 www.filtcrraxom
ail Free; 1866! 349-3458 Z 0 F
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CHECKED SRC
BY:
DATE:
9/
17/
07
PROJECT NO. S.
H."EE-
T-1. M —2 I