SW4190902_As-Built_20210225

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ARCHITECT:
JAMES E. WILKERSON, A.I.A.
WILKERSON ARCHITECTS, LLC
119 EAST TALLULAH DRIVE
GREENVILLE, SC 29605
PH: [phone] OFC
PH: [phone] CELL
FX: [phone] FAX
[e-mail]
SITE PLAN SUMMARY
PROJECT:
CIRCLE K - R&R 2723188
OWNER:
CIRCLE K STORES INC
PROJECT ADDRESS:
1065 BETHANIA-RURAL HALL ROAD, RURAL HALL, NC
PIN #:
6819-58-8592
DEED:
DB 003339 PG 01359
ZONING:
HB (HIGHWAY BUSINESS)
EXISTING USE:
CONVENIENCE STORE W/ GAS SALES
PROPOSED USE:
CONVENIENCE STORE W/ GAS SALES
FLOOD ZONE:
NOT LOCATED IN FLOOD HAZARDS AREA PER FEMA MAP
#3710681900J (EFFECTIVE 01/02/2009)
PROPOSED TRACT
1.25 ACRES (AFTER NCDOT R/W TAKING)
AREA:
DISTURBED AREA:
1.40 ACRES (AFTER NCDOT R/W TAKING)
EXISTING IMPERVIOUS
Q_79 ACRES (63.2%) AFTER NCDOT R/W TAKING
SURFACE AREA:
PROPOSED
IMPERVIOUS SURFACE
0 20 ACRES (16.0% INCLUDING 0.10 AC IMPERVIOUS CONTINGENCY)
AREA:
AFTER NCDOT R/W TAKING
TOTAL IMPERVIOUS
0.99 AC (79.2%) AFTER NCDOT R/W TAKING
SURFACE AREA:
TYPE OF BUILDING
V-B (NOWSPRINKLERED)
CONSTRUCTION:
TYPE OF CANOPY
CONSTRUCTION:
II-B
PROPOSED BUILDING
SQUARE FOOTAGE:
3,819 SF
1 SPACE PER 225 SQUARE FEET OF GROSS FLOOR AREA =
VEHICLE PARKING
3,819 SF / 225 SF = 17 SPACES REQUIRED
SUMMARY: REQUIRED
1 SPACE PER 100 SQUARE FEET OF INTERIOR RESTAURANT
SEATING AREA = 50 SF / 100 SF = 1 SPACE REQUIRED
TOTAL = 18 SPACES (1 MUST BE ADA SPACES)
VEHICLE PARKING
18 PARKING SPACES
SUMMARY: PROVIDED
1 VAN ACCESSIBLE ADA SPACE
TOTAL = 19 SPACES
STORM DRAINAG AS UILT FOR:
CIRCALE K R&R 2723188
RURAL HALL, NORTH CAROLINA 27045
OWNER:
CIRCLE K STORES INC
PO BOX 52085
PHOENIX, AZ 85072
FORSYTH COUNTY
CIRCLE K STORES INC
ANDY PRIOLO
1100 SITUS COURT
SUITE 100
RALEIGH, NC 27606
PH: [phone]
FAX: [phone]
CIVIL ENGINEER:
TIMMONS GROUP.
5410 TRI N ITY ROAD
SUITE 102
RALEIGH, NC 27607
PROJECT MANAGER:
BRIAN DOWNS
[e-mail]
PH: [phone]
ENGINEER OF RECORD:
RICK BAKER, P.E.
[e-mail]
PH: [phone]
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VICINITY MAP
NTS
GENERAL NOTES:
ALL CONTRACTORS SHALL VISIT THE PROJECT TO FAMILIARIZE THEMSELVES WITH SITE
CONDITIONS PRIOR TO BIDDING OR CONSTRUCTION. BY SUBMITTING A BID, THE CONTRACTOR
AND HIS SUBCONTRACTORS ARE CONFIRMING THAT THEY HAVE VISITED THE SITE AND HAVE
INCLUDED IN THEIR BID ANY ADDITIONAL ITEMS OF CONSTRUCTION THAT MAY BE REQUIRED
DUE TO EXISTING SITE CONDITIONS.
NO JURISDICTIONAL WETLANDS ARE PRESENT ON -SITE.
SURVEYOR:
TIMMONS GROUP
ANDY ZIEMNIAK, PLS
5410 TRINITY ROAD
SUITE 102
RALEIGH, NC 27607
P H : [phone]
[e-mail]
Sheet List Table
Sheet Number
Sheet Title
AB0.0
ASBUILT COVER SHEET
AB3.0
ASBUILT GRADING AND DRAINAGE PLAN
AB7.8
ASBUILT NOTES AND DETAILS
AB7.9
ASBUILT NOTES AND DETAILS
I, Rick Baker, PE, AS A DULY REGISTERED PROFESSIONAL ENGINEER IN THE STATE OF NORTH
CAROLINA, HAVING BEEN AUTHORIZED TO OBSERVE ( X PERIODICALLY, WEEKLY,
FULL TIME) THE CONSTRUCTION OF THE PROJECT, CIRCLE K - R&R 2723188, HEREBY STATE
THAT, TO THE BEST OF MY ABILITIES, DUE CARE AND DILIGENCE WAS USED IN THE
OBSERVATION OF THE CONSTRUCTION SUCH THAT BY MY INSPECTION OF THE CONSTRUCTED
IMPROVEMENTS AND MY REVIEW OF THE AS -BUILT SURVEY DATA, I HEREBY CERTIFY THAT THE
(1) PUBLIC IMPROVEMENTS, (2) PRIVATE IMPROVEMENTS, AND (3) PUBLIC SAFETY OF THE
ABOVE REFERENCED PROJECT AS CONSTRUCTED ARE IN COMPLIANCE WITH THE
REQUIREMENTS OF THE IMPROVEMENTS AS PRESCRIBED IN THE APPROVED. CONSTRUCTION
DRAWINGS, APPROVED DESIGN DOCUMENTS, AND/OR ANY APPROVED MODIFICATIONS,
EXCEPT AS NOTED IN RED ON THE'AS-BUILT' DRAWINGS. FURTHERMORE, I CERTIFY THAT THE
RED -NOTED EXCEPTIONS DO NOT ADVERSELY AFFECT THE REQUIRED PERFORMANCE OR
PUBLIC SAFETY ASPECTS OF THEIMPROVEMENTS:
NAME: _R;_s. k S'w e e- DATE: t�Z�o 1��2uzJ
NCPE SEAL:
ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL CITY OF WINSTON-SALEM,
FORSYTH COUNTY, NCDEQ, AND NCDOT STANDARDS, SPECIFICATIONS, AND DETAILS
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DATE
0312812019
DRAWN BY
A. MAY
DESIGNED BY
B. DOWNS
CHECKED BY
R. BAKER
SCALE
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JOB NO.
7630.02
SHEET NO.
ABO.O
79
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auu. i v , - - - - UNU: 964.bU l } f
GENERAL CONTRACTOR: I ` az ` \ , / OTHERWISE. ALL ELEVATIONS ARE BASED ON VERTICAL DATUM NAVD88.
PRIOR TO BEGINNING AN Jt ` TC: 964.90'' ��" ,. 965 "®/' r s 9. A PRE -CONSTRUCTION MEETING MUST BE SCHEDULED PRIOR TO ANY
r�
SURVEY VERIFY EXISTING GRADING IN R/W / /� FC: 965.30 % r��
RESULTING FROM NCDOT TIP PROJECT. IN CASE OF f Qa� f ' � �� TC: 965.52' , �� 4" p � � � �' l / WORK, GRADING OR INSTALLATION OF EROSION CONTROL MEASURES.
DISCREPANCY, NOTIFY ENGINEER. f G08 t VC / 10. ALL HANDICAP PARKING SPACES AND STRIPED ACCESSIBILITY AISLES ARE
r f r z TO HAVE NO MORE THAN A 1:50 (2.0%) SLOPE IN ALL DIRECTIONS. ALL
TC: 964.8' ± (ME) f f % I ° 964.50' CG01 , 965.49' CG05 ' r SIDEWALKS ARE TO HAVE NO MORE THAN A 1:20 (5.0%) SLOPE FOR THE
G08 ® INV OUT 962.95 t t
r FC: 965.30' / % LENGTH OF THE SIDEWALK AND NO MORE THAN A 1:50 (2.0%) SLOPE FOR
f / / Vv' f f / i \ \ n /�``� % THE WIDTH OF THE SIDEWALK. PROVIDE 5' X 5' MINIMUM LANDINGS AT ALL
1� l �f /'I // ` r t `� , rr ' TURNING AREAS AND TOP AND BOTTOMS OF ALL RAMPS WITH SLOPE LESS
4 PVC O A/161V�' f �Y ` THAN 2.00°!° IN ANY DIRECTION. SIDEWALKS WITHIN 5 OF ALL DOORWAYS
/ SHALL NOT EXCEED 2.00% IN ANY DIRECTION.
CG02 \
����965.40' c9 �t 964 zt,,.s' �' i rg 11. IF CONTRACTOR NOTICES ANY DISCREPANCIES IN ANY OF THESE SLOPE
r f %f r / f j %✓ ,1 f r �� .� % CG01 REQUIREMENTS, IT IS THE CONTRACTORS RESPONSIBILITY TO CONTACT
��~- i rr 96sr r' THE OWNER PRIOR TO POURING ANY CONCRETE SO THAT A SOLUTION CAN
y ' t f' j tr 964.20 G@ r G17 \ r f BE FOUND.
= �� J r r ® _ rr 12. SPOT ELEVATIONS ARE GIVEN AT THE MAJORITY OF THE MAJOR BREAK
f/ j / Q
` 4" PVC '�� ' j 'f '`�o �` r f f r f �^'° - POINTS BUT IT SHOULD NOT BE ASSUMED THAT ALL NECESSARY SPOT
64 ELEVATIONS ARE SHOWN. DUE TO SPACE LIMITATIONS, THERE MAY BE
I /
�� I r f f ° FC: 965.32' r 83 t \ - -' r r t I'.`� OTHER CRITICAL SPOTS NOT LABELED THAT SHOULD BE TAKEN INTO
/ r CONSIDERATION. THE CONTRACTOR SHALL REVIEW THE GRADING PLAN IN
r ! \ �✓ ' / r , ' f , % r / / a "� v:& ,3"'.-"-.< "
�\ 'r ' ✓t 1 e/ TC: 964.00' f t CG15
r P DETAIL AND SHALL ENSURE THAT ALL CRITICAL GRADE POINTS ARE STAKED
O at
t INV OUT 963.45
�., rr � � r,, � 965.49' �, � CG02 r � s y ,; �\ #� ` �'�� AND FOLLOWED TO PROVIDE POSITIVE DRAINAGE.
r� r j \ f / �f1 963.60 / 4 . v
-® 13, EXISTING VEGETATION WITHIN TREE PROTECTIVE AREAS SHALL REMAIN
pp '� `°Vs
'° UNDISTURBED UNLESS NOTED OTHERWISE. ANY AND ALL LANDSCAPING
® r TW: 962.10 ' h .
f G41 :fir 963.79 O FC: 965.32 t9 J BW: 9S1 10' v= .r AND EXISTING TREES & SHRUBS TO REMAIN WHICH ARE DAMAGED DURING
j - ®4 PVC �"
/� A j C 1 964.05 �� o / 1 t f �� h
f s f / DEMOLITION OR CONSTRUCTION SHALL BE REPLACED BY THE CONTRACTOR
r 4 PVC .�
G01 c��r >' i .965 r t t
\�� f j , r USING A LICENSED LANDSCAPE CONTRACTOR AT NO ADDITIONAL COST TO
G08
14. THE GRADING CONTRACTOR SHALL COMPLY WITH ALL STATE CODES IN
j THE OWNER.
f TIN: 964.50 I
1 - r 965.02 - 4
F ( 1 , r
BW: 961.00' _.., . _ OBSERVING EROSION CONTROL MEASURES BOTH ON AND OFF -SITE. THE
r / r L FC: 965.32 46
964.05' C� ° o r GRADING CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL DEVICES
r s f i G 16 \ r �!
\ \ r
f ! AFTER EACH RAINFALL EVENT OR AS DIRECTED BY THE EROSION CONTROL
,j 4 PVC / Lo�6 �r % r ! INSPECTOR OR THE ENGINEER.
Erb \ 965.02 / / \/o SURVEY NOTES 15. THE GRADING CONTRACTOR SHALL BE RESPONSIBLE FOR OFF -SITE
CG06 l2
DISPOSAL OF ALL CLEARING AND GRADING WASTE MATERIALS GENERATED
j 1. ALL DISTANCES SHOWN ON SURVEY ARE HORIZONTAL GROUND DURING CONSTRUCTION AND FOR OBTAINING ALL APPLICABLE PERMITS FOR
DISTANCES UNLESS OTHERWISE NOTED. OFF -SITE STOCKPILES AND/OR WASTE AREAS.
964.05' G r TW: 962.50' f 16. ALL CATCH BASINS MUST BE MARKED "DUMP NO WASTE DRAINS TO
JI/ �s r , 2. THIS SURVEY DOES NOT REPRESENT A TITLE SEARCH BY THIS FIRM.
r \ _ \ r r BW: 960.30' 3. BASIS OF BEARING SHOWN HEREON IS NC GRID NAD 83 (NSRS 2007). STREAM" OR EQUIVALENT.
r r 3 _ ° r %
\ \ 4" PVC ° CG05 t 14 ; r % 4. VERTICAL DATUM SHOWN HEREON IS NAVD88. 17. ALL FINISHED GRADED SURFACES SHALL SLOPE AWAY FROM BUILDING
�' CB103 !t _ 5. AS -BUILT SURVEY PROVIDED BY J. DYLAN ATKINS, PLS WITH ATKINS TOWARDS DRAINAGE OUTLETS FOR POSITIVE DRAINAGE AND TO AVOID
G40 9s� r FC: 965.32' t Jf{ / � �. r LAND SURVEYING, INC. ON 1217/2020. STANDING WATER.
TC: 962.35 \
962.44' \ 1 r c96' AL �65 r TW: 963.50'
r e 964. ,
962.69 - ME G18 r f j
962 4" PVC
°CG01 rj j '
35' TW: 963.5
965.r t
j >9 961.94 r r` 0'
O c�
`
, BW: 960.10 --
ff r
gro 964.05
D 4" PVC r f TW: 964.50'
G36 CB102 ` \ r2 Q 964.20' r f r BW: 959.50' r
f % t f \ G G08 r e fl r
f ilA f 1 r7Q16 \ } \ \ � \ \ N t/ G08 11
rn e 964.05 4- t f s
41 _ TC: 963.00'
0\ �.. TC: 960.05' ti ti \ r A 963. M r r f r jy
TC: 959.94' \ J6201
959 G42
f / f f fr ; . \ `\ TW: 961.00, . \ f
""� BW: 960 50 q, \ ti Q e , TW: 964.00
f 1' r rr ` \ ��, �� 95 \ 1 TC: 963.50 BW- 958.00' d
1 / ,� ��� v \ v� TW: 963.30 B ° r
BW: 959.50'CD
l
STORM STRUCTURE TABLE
STRUCTURE #
TOP
DESCRIPTION
CB102
'96 spa
NCDOT 840.02 CONCRETE CATCH BASIN
CB10
-"J62Z8
NCDOT 840.02 CONCRETE CATCH BASIN
JBI01
-965
5' DIA. - NCDOT 840.52 PRECAST MANHOLE
JB201
60
5' DIA. - NCDOT 840.52 PRECAST MANHOLE w/ 2' SUMP
N i 1 % r t ' EXISTING GRADES SHOWN IN ROAD A \ \ �� �� / 9g'(l �, rr iv ° J / f' NOTES:
BASED ON AS -BUILT SURVEY s \ o
r r INFORMATION RECEIVED FROM ` � TC: 963.30' 963.40' ' i `6tk ` r G44 / 1. TOP REFERS TO:
N rf r THE CONTRACTOR ON 09/15/2020. ` \ °'
\ 1.1. CATCH BASIN: TOP OF CURB
%' r r \ �1/ \ 1 ° / t r7-
/ow% r f r 1 2 YARD INLET: SILL
963.70' JB101
f GENERAL CONTRACTOR: \\� r r
m lr r PRIOR TO BEGINNING ANY
�� r
o f r rjr SURVEY VERIFY EXISTING GRADING IN R/W `� TC: 963.50' 9y6 2 TC: 964.00' r .
f RESULTING FROM NCDOT TIP PROJECT. IN CASE OF / ° r j BC: 963.50'sl'`�
/r G44 ti v v r
m� r DISCREPANCY, NOTIFY ENGINEER. 1
_V
TW:963.00' e/ ` 60: % r r TC:964.10'
f BW: 957.00' BC: 963.60' N
`� TC: 964.30'
BC:963.80' v tJ
TW: 956.00'
BW: 955.50'
GRADING PLAN KEYNOTES
NUMBER
DESCRIPTION
CG01
TAPER CURB AND GUTTER TO FULL HEIGHT OVER 10' (TYP.); SEE
DETAIL CK-135.
CG02
CONNECT ROOF DRAIN DOWN SPOUTS UNDERGROUND TO
STORM PIPE; SEE PLAN FOR SIZE (TYP.).
CG05
STORM CLEANOUT; SEE DETAIL. TO BE TRAFFIC RATED IF WITHIN
PAVEMENT (TYP.). SEE DETAIL CK-210.
CG06
ROOF DRAIN SYSTEM, SEE PLAN FOR SIZE AND MATERIAL.
MIMIMUM COVER OF 2' AND MINIMUM SLOPE OF 1.00%.
G01
EXISTING CURB INLET
G08
24" CURB & GUTTER (TYP.)
G16
ADA STALLS (MAX SLOPE 1:50)
G17
SIDEWALK (ADA ACCESS ROUTE MAX CROSS SLOPE
1:50; MAX LONG. SLOPE 1:20). TURNING AREAS AND LANDINGS AT
TOP AND BOTTOM OF RAMPS AND BUILDING ENTRANCES SHALL
NOT EXCEED 2.00% IN ANY DIRECTION.
G18
ADA RAMP (TYP.)
G27
MATCH EXISTING PAVEMENT ELEVATION
G36
LIMITS OF SAWCUT AND PAVEMENT REMOVAL
G41
EXISTING PERMANENT UTILITY EASEMENT
G42
UNDERGROUND STORMWATER SYSTEM; REFER TO DETAILS
G43
CLASS'B' RIPRAP OVER FILTER FABRIC 15' L X 5' W X 18" TH
G44
RETAINING WALL TO BE DESIGNED BY OTHERS STRUCTURAL
ENGINEER. 42" HIGH PEDESTRIAN SAFETY FENCE REQUIRED
ATOP WALL WHEREVER WALL HEIGHT EXCEEDS 30 INCHES.
G45
TEMPORARY CONSTRUCTION EASEMENT FOR NCDOT TIP R-2247
NOREPIN
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PIPE ON SAME LINE AND SLOPE �` TC: 952.0' - ME
ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL CITY OF WINSTON-SALEM,
ti FORSYTH COUNTY NCDEQ AND NCDOT STANDARDS, SPECIFICATIONS, AND DETAILS
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DATE
0312812019
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DRAWN BY
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A. MAY
DESIGNED BY
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B. DOWNS
CHECKED BY
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37630.025
SHEET NO. T a
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PROJECT INFORMATION
ENGINEERED
KELLY HEFNER
PRODUCT
704-215-0743
MANAGER:
[e-mail]
KEITH COEN
ADS SALES REP:
704 466-0135
[e-mail]
PROJECT NO:
5119442
ADVANCED DRAINAGE SYSTEMS, INC.
SiteASS�ST
D
FOR STORMTECH
INSTRUCTIONS,
■
DOWNLOAD THE
Q
INSTALLATION API
•
CIRCLE K RURAL HALL BAYFILTER STORMTECH TIMMONS
RURAL HALL, NC
SC-740 STORMTECH CHAMBER SPECIFICATIONS
IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF THE SC-740 SYSTEM
1. STORMTECH SC-740 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S REPRESENTATIVE HAS COMPLETED A
1. CHAMBERS SHALL BE STORMTECH SC-740.
PRE -CONSTRUCTION MEETING WITH THE INSTALLERS.
2. CHAMBERS SHALL BE ARCH -SHAPED AND SHALL BE MANUFACTURED FROM VIRGIN, IMPACT -MODIFIED POLYPROPYLENE
2. STORMTECH SC-740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
COPOLYMERS.
3. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP)
3. CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR AN EXCAVATOR SITUATED OVER THE CHAMBERS.
CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
STORMTECH RECOMMENDS 3 BACKFILL METHODS:
• STONESHOOTER LOCATED OFF THE CHAMBER BED.
4. CHAMBER ROWS SHALL PROVIDE CONTINUOUS, UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL SUPPORTS THAT WOULD
• 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.
IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION.
5. THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION REQUIREMENTS SHALL ENSURE
4. THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACING CHAMBERS.
THAT THE LOAD FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1)
5. JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE.
LONG -DURATION DEAD LOADS AND 2) SHORT -DURATION LIVE LOADS, BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION
FOR IMPACT AND MULTIPLE VEHICLE PRESENCES.
6. MAINTAIN MINIMUM - 6" (150 mm) SPACING BETWEEN THE CHAMBER ROWS.
6. CHAMBERS SHALL BE DESIGNED, TESTED AND ALLOWABLE LOAD CONFIGURATIONS DETERMINED IN ACCORDANCE WITH ASTM F2787,
7 EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN, CRUSHED, ANGULAR STONE 3/4-2" (20-50 mm).
"STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
LOAD CONFIGURATIONS SHALL INCLUDE: 1) INSTANTANEOUS (<1 MIN) AASHTO DESIGN TRUCK LIVE LOAD ON MINIMUM COVER 2)
8 THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIALS BEARING CAPACITIES TO THE SITE DESIGN
MAXIMUM PERMANENT (75-YR) COVER LOAD AND 3) ALLOWABLE COVER WITH PARKED (1-WEEK) AASHTO DESIGN TRUCK.
ENGINEER.
7. REQUIREMENTS FOR HANDLING AND INSTALLATION:
9• ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT" INSERTS DURING CONSTRUCTION FOR ALL INLETS TO PROTECT THE SUBSURFACE
• TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING
STORMWATER MANAGEMENT SYSTEM FROM CONSTRUCTION SITE RUNOFF.
STACKING LUGS.
• TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS
NOTES FOR CONSTRUCTION EQUIPMENT
THAN 2".
• 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 550 LBS/INAN. AND b) TO RESIST CHAMBER DEFORMATION
1. STORMTECH SC-740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73- F / 23" C), CHAMBERS SHALL BE PRODUCED FROM
REFLECTIVE GOLD OR YELLOW COLORS.
2. THE USE OF CONSTRUCTION EQUIPMENT OVER SC-740 CHAMBERS IS LIMITED:
• NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS.
8. ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. UPON REQUEST BY THE SITE DESIGN
• NO RUBBER TIRED LOADERS, DUMP TRUCKS, OR EXCAVATORS ARE ALLOWED UNTIL PROPER FILL DEPTHS ARE REACHED IN ACCORDANCE
ENGINEER OR OWNER, THE CHAMBER MANUFACTURER SHALL SUBMIT A STRUCTURAL EVALUATION FOR APPROVAL BEFORE
WITH THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
DELIVERING CHAMBERS TO THE PROJECT SITE AS FOLLOWS:
• WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".
• THE STRUCTURAL EVALUATION SHALL BE SEALED BY A REGISTERED PROFESSIONAL ENGINEER.
• THE STRUCTURAL EVALUATION SHALL DEMONSTRATE THAT THE SAFETY FACTORS ARE GREATER THAN OR EQUAL TO 1.95 FOR
3. FULL 36" (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP TRUCK TRAVEL OR DUMPING.
DEAD LOAD AND 1.75 FOR LIVE LOAD, THE MINIMUM REQUIRED BY ASTM F2787 AND BY SECTIONS 3 AND 12.12 OF THE AASHTO
LRFD BRIDGE DESIGN SPECIFICATIONS FOR THERMOPLASTIC PIPE.
USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO THE CHAMBERS AND IS NOT AN
• THE TEST DERIVED CREEP MODULUS AS SPECIFIED IN ASTM F2418 SHALL BE USED FOR PERMANENT DEAD LOAD DESIGN
ACCEPTABLE BACKFILL METHOD. ANY CHAMBERS DAMAGED BY THE "DUMP AND PUSH" METHOD ARE NOT COVERED UNDER THE STORMTECH
EXCEPT THAT IT SHALL BE THE 75-YEAR MODULUS USED FOR DESIGN.
STANDARD WARRANTY.
9. CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN ISO 9001 CERTIFIED MANUFACTURING FACILITY.
CONTACT STORMTECH AT 1-888-892-2694 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS OR WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT.
BAYSAVER BAYFILTER SPECIFICATIONS
BAYFILTER MAINTENANCE
THE BAYFILTER SYSTEM REQUIRES PERIODIC MAINTENANCE TO CONTINUE OPERATING AT ITS PEAK EFFICIENCY DESIGN. THE MAINTENANCE
PROCESS COMPRISES THE REMOVAL AND REPLACEMENT OF EACH BAYFILTER CARTRIDGE AND THE CLEANING OF THE VAULT OR MANHOLE WITH A
PRODUCTS
VACUUM TRUCK. FOR BEST RESULTS, BAYFILTER MAINTENANCE SHOULD BE PERFORMED BY A CERTIFIED MAINTENANCE CONTRACTOR. A QUICK
A.
INTERNAL COMPONENTS: ALL COMPONENTS INCLUDING CONCRETE STRUCTURE(S), PVC MANIFOLD PIPING AND FILTER CARTRIDGES,
CALL TO AN ADS ENGINEER OR CUSTOMER SERVICE REPRESENTATIVE WILL PROVIDE YOU WITH A LIST OF RELIABLE CONTRACTORS IN YOUR AREA.
SHALL BE PROVIDED BY BAYSAVER TECHNOLOGIES LLC, 1030 DEER HOLLOW DRIVE, MOUNT AIRY, MD (800.229.7283).
WHEN BAYFILTER IS INITIALLY INSTALLED, WE RECOMMEND THAT AN INSPECTION BE PERFORMED ON THE SYSTEM IN THE FIRST SIX (6) MONTHS.
B.
PVC MANIFOLD PIPING: ALL INTERNAL PVC PIPE AND FITTINGS SHALL MEET ASTM D1785. MANIFOLD PIPING SHALL BE PROVIDED TO THE
AFTER THAT, THE INSPECTION CYCLE TYPICALLY FALLS INTO A BIANNUAL PATTERN GIVEN NORMAL STORM OCCURRENCE AND ACTUAL SOLIDS
CONTRACTOR PARTIALLY PRE-CUT AND PRE -ASSEMBLED.
LOADS.
C.
FILTER CARTRIDGES: EXTERNAL SHELL OF THE FILTER CARTRIDGES SHALL BE SUBSTANTIALLY CONSTRUCTED OF POLYETHYLENE OR
WHEN BAYFILTER EXHIBITS FLOWS BELOW DESIGN LEVELS, THE SYSTEM SHOULD BE INSPECTED AND MAINTAINED AS SOON AS PRACTICAL.
EQUIVALENT MATERIAL ACCEPTABLE TO THE MANUFACTURER. FILTRATION MEDIA SHALL BE ARRANGED IN A SPIRAL LAYERED FASHION
REPLACING A BAYFILTER CARTRIDGE SHOULD BE CONSIDERED AT OR ABOVE THE LEVEL OF THE MANIFOLD.
TO MAXIMIZE AVAILABLE FILTRATION AREA. AN ORIFICE PLATE SHALL BE SUPPLIED WITH EACH CARTRIDGE TO RESTRICT THE FLOW RATE
TO A MAXIMUM OF 45 GPM.
MAINTENANCE PROCEDURES
1. REMOVE THE MANHOLE COVERS AND OPEN ALL ACCESS HATCHES.
D.
FILTER MEDIA: FILTER MEDIA SHALL BE BY BAYSAVER TECHNOLOGIES LLC AND SHALL CONSIST OF THE FOLLOWING MIX: A BLEND OF
2. BEFORE ENTERING THE SYSTEM MAKE SURE THE AIR IS SAFE PER OSHA STANDARDS OR USE A BREATHING APPARATUS. USE LOW 02, HIGH
ZEOLITE, PERLITE AND ACTIVATED ALUMINA.
CO, OR OTHER APPLICABLE WARNING DEVICES PER REGULATORY REQUIREMENTS.
3. USING A VACUUM TRUCK, REMOVE ANY LIQUID AND SEDIMENTS THAT CAN BE REMOVED PRIOR TO ENTRY.
E.
PRECAST CONCRETE VAULT: CONCRETE STRUCTURES SHALL BE PROVIDED ACCORDING TO ASTM C. THE MATERIALS AND STRUCTURAL
4. USING A SMALL LIFT OR THE BOOM OF THE VACUUM TRUCK, REMOVE THE USED CARTRIDGES BY LIFTING THEM OUT.
DESIGN OF THE DEVICES SHALL BE PER ASTM C478, C857 AND C858. PRECAST CONCRETE SHALL BE PROVIDED BY BAYSAVER
5. ANY CARTRIDGES THAT CANNOT BE READILY LIFTED CAN BE EASILY SLID ALONG THE FLOOR TO A LOCATION THEY CAN BE LIFTED VIA A BOOM
TECHNOLOGIES, LLC.
LIFT.
6. WHEN ALL THE CARTRIDGES HAVE BEEN REMOVED, IT IS NOW PRACTICAL TO REMOVE THE BALANCE OF THE SOLIDS AND WATER. LOOSEN THE
PERFORMANCE
STAINLESS CLAMPS ON THE FERNCO COUPLINGS FOR THE MANIFOLD AND REMOVE THE DRAINPIPES AS WELL. CAREFULLY CAP THE MANIFOLD
A.
THE STORMWATER FILTER SYSTEM SHALL BE AN OFFLINE DESIGN CAPABLE OF TREATING 100% OF THE REQUIRED TREATMENT FLOW AT
AND THE FERNCO'S AND RINSE THE FLOOR, WASHING AWAY THE BALANCE OF ANY REMAINING COLLECTED SOLIDS.
FULL SEDIMENT LOAD CONDITIONS.
7. CLEAN THE MANIFOLD PIPES, INSPECT, AND REINSTALL.
B.
THE STORMWATER FILTER SYSTEM'S CARTRIDGES SHALL HAVE NO MOVING PARTS.
8. INSTALL THE EXCHANGE CARTRIDGES AND CLOSE ALL COVERS.
C.
THE STORMWATER TREATMENT UNIT SHALL BE DESIGNED TO REMOVE AT LEAST 85% OF SUSPENDED SOLIDS, 65% OF TOTAL
9. THE USED CARTRIDGES MUST BE SENT BACK TO ADS FOR EXCHANGE/RECYCLING AND CREDIT ON UNDAMAGED UNITS.
PHOSPHORUS, 65% OF TURBIDITY, 40% OF TOTAL COPPER, AND 40% OF TOTAL ZINC BASED ON FIELD DATA COLLECTED IN COMPLIANCE
WITH THE TECHNOLOGY ACCEPTANCE RECIPROCITY PARTNERSHIP TIER 11 TEST PROTOCOL.
BAYFILTER INSTALLATION NOTES
D.
THE STORMWATER FILTRATION SYSTEM SHALL REDUCE INCOMING TURBIDITY (MEASURED AS NTUs) BY 50% OR MORE AND SHALL NOT
1. CONTACT UTILITY LOCATOR TO MARK ANY NEARBY UNDERGROUND UTILITIES AND MAKE SURE IT IS SAFE TO EXCAVATE.
HAVE ANY COMPONENTS THAT LEACH NITRATES OR PHOSPHATES.
2. REFERENCE THE SITE PLAN AND STAKE OUT THE LOCATION OF THE BAYFILTER VAULT.
E.
THE STORMWATER FILTRATION CARTRIDGE SHALL BE EQUIPPED WITH A HYDRODYNAMIC BACKWASH MECHANISM TO EXTEND THE
3. EXCAVATE THE HOLE, PROVIDING ANY SHEETING AND SHORING NECESSARY TO COMPLY WITH ALL FEDERAL, STATE AND LOCAL SAFETY
FILTER'S LIFE AND OPTIMIZE ITS PERFORMANCE.
REGULATIONS.
F.
THE STORMWATER FILTRATION SYSTEM SHALL BE DESIGNED TO REMOVE A MINIMUM OF 65% OF THE INCOMING TOTAL PHOSPHORUS
4. LEVEL THE SUB -GRADE TO THE PROPER ELEVATION. VERIFY THE ELEVATION AGAINST THE MANHOLE DIMENSIONS, THE INVERT
G.
(TP) LOAD.
THE STORMWATER FILTRATION SYSTEM'S CARTRIDGES SHALL HAVE A TREATED SEDIMENT CAPACITY FOR 80% TSS REMOVAL BETWEEN
ELEVATIONS, AND THE SITE PLANS. ADJUST THE BASE AGGREGATE, IF NECESSARY.
5. HAVE THE SOIL BEARING CAPACITY VERIFIED BY A LICENSED/ENGINEER FOR THE REQUIRED LOAD BEARING CAPACITY. ON SOLID
150-350 LBS.
SUB -GRADE, SET THE FIRST SECTION OF THE BAYFILTER PRE -CAST VAULT.
6. CHECK THE LEVEL AND ELEVATION OF THE FIRST SECTION TO ENSURE IT IS CORRECT BEFORE ADDING ANY RISER SECTIONS.
7. IF ADDITIONAL SECTION(S) ARE REQUIRED, ADD A WATERTIGHT SEAL TO THE FIRST SECTION OF THE BAYFILTER VAULT. SET ADDITIONAL
SECTION(S) OF THE VAULT, ADDING A WATERTIGHT SEAL TO EACH JOINT.
8. INSTALL THE PVC OUTLET MANIFOLD.
9. INSTALL THE PVC OUTLET PIPE IN BAYFILTER VAULT.
10. INSTALL THE INLET PIPE TO THE BAYFILTER VAULT.
11. AFTER THE SITE IS STABILIZED, REMOVE ANY ACCUMULATED SEDIMENT OR DEBRIS FROM THE VAULT AND INSTALL THE FLOW DISKS,
DRAINDOWN MODULES (IF APPLICABLE), AND THE BAYFILTER CARTRIDGES.
12. PLACE FULL SET OF HOLD DOWN BARS AND BRACKETS INTO PLACE.
PLAN
6"
p , / EXP.
1,' " 9"
f- B
b.
6 SEE NOTE DOWEL
SECTION Y-Y
L MANHOLE
E
C
D tf �. D
aco6 _0/ Tj
f -j'
cc LU I� i U-
�CL �y / ;
co
).54 CFOR MANHOLE COVER $ FRAME #4 BARS "A"
OPTIONAL SPACED 6"
C. TO C.
BRICK MAY BE USED
TO ADJUST FRAME 8
COVER TO SURFACE
ELEVATION MAX. 1'
PIPE
Err E OR F 1 %2"
SECTION
C-C OR D-D
GENERAL NOTES:
CHAMFER ALL EXPOSED CORNERS 1".
USE CLASS "B" CONCRETE THROUGHOUT.
OPTIONAL CONSTRUCTION - MONOLITHIC POUR, 2" KEYWAY, OR
#4 BAR DOWELS AT 12" CENTERS AS DIRECTED BY THE ENGINEER.
USE FORMS TO CONSTRUCT THE BOTTOM SLAB.
IF REINFORCED CONCRETE PIPE IS SET IN BASE SLAB OF BOX,
ADD TO BASE AS SHOWN ON STANDARD NO. 840.00.
PROVIDE ALL JUNCTION BOXES OVER 3'-6" IN DEPTH WITH STEPS
12 ON CENTERS IN ACCORDANCE WITH STD. NO. 840.66.
ADJUST THE STEEL, CONCRETE AND BRICK MASONRY QUANTITIES
TO INCLUDE THE ADDITION OF THE MANHOLE (I.E. DIAGONAL BARS
SHORTENED AROUND OPENING IN TOP SLAB, ADDITIONAL VARIABLE
HEIGHT BRICK MASONRY, OPENING IN TOP SLAB.)
MAX. DEPTH OF THIS STRUCTURE FROM TOP OF BOTTOM SLAB TO TOP
ELEVATION IS 12 FEET.
#4 BAR
r
DOWEL
DIMENSIONS AND QUANTITIES FOR CONCRETE JUNCTION BOXES
DIMENSIONS OF BOX AND PIPE
REINFORCEMENT
BARS "A"
TOP SLAB
DIMENSIONS
CUBIC YARDS
IN BOX
TOTAL QUANTITIES
BOX AND SLABS
DEDUCTIONS FOR ONE
PIPE CU.YDS.
PIPE
SPAN
WIDTH
HEIGHT
D
A
B
H
NO.
LENGTH
E
F
TOP
SLAB
BOTTOM
SLAB
WALL/
FT. OF HT.
LBS.
REINF
CU. YDS.
MIN. "H"
C.S.
R.C.
12"
2' 0"
2'-0"
2`-3"
12
2'-9"
3' 0"
3' 0"
0.167
0.167
0.185
22
0.750
0.015
0.024
15"
2'-3"
2'-3"
2'-6"
12
3'-0"
3'-3"
3'-3"
0.196
0.196
0.204
24
0.902
0.023
0.036
18"
2'-6"
2'-6"
2'-9"
14
3'-3"
3'-6"
3'-6"
0.227
0.227
0.222
30
1.065
0.033
0.049
24"
3'-0"
3'-0"
3'-3"
16
3'-9"
4'-0"
4'-0"
0.296
0.296
0.259
40
1.434
0.059
0.085
30"
3'-6"
3'-6"
3'-9"
18
4`-3"
4'-6"
4'-6"
0.375
0.375
0.296
51
1.860
0.092
0.127
36"
4'-0"
4'-0"
4'-3"
20
4'-9"
5'-0"
5' 0"
0.463
0.463
0.333
64
2.341
0.132
0.178
42'
4'-6"
4'-6"
4'-9"
22
5'-3"
5'-6"
1 5'-6"
0.560
0.560
0.370
77
2.878
0.180
0.243
48"
5' 4"
5'-4"
5' 3"
26
6'-3"
6'-4"
6'-4"
0.743
0.743
0.407
111
3.623
0.235
0.317
54"
5'-10"
5'-10"
5'-9"
28
6'-7"
6'-10"
6'-10"
0.865
0.865
0.444
126
4.283
0.297
0.401
60'
6'-6"
6'-6"
6'-3"
30
7'-3"
7'-6"
7'-6"
1.042
1.042
0.481
145
5.090
0.367
0.495
66"
7'-1"
7`-1"
6'-9"
32
7'-10"
8' 1"
8'-1"
1.210
1.210
0.518
169
5.917
0.444
0.589
z
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1840.31
6
STORMTECH SC-740 CHAMBERS
2
STORMTECH SC-740 END CAPS
6
STONE ABOVE (in)
6
STONE BELOW (in)
40
% STONE VOID
570
INSTALLED SYSTEM VOLUME (CF) (PERIMETER STONE INCLUDED)
289
SYSTEM AREA (W)
105
SYSTEM PERIMETER (ft)
PROPOSED ELEVATIONS
967.67
MAXIMUM ALLOWABLE GRADE (TOP OF PAVEMENT/UNPAVED)
961.67
MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC)
961.17
MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC)
961.17
MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT)
961.17
MINIMUM ALLOWABLE GRADE (TOP OF RIGID PAVEMENT)
960.17
TOP OF STONE
959.67
TOP OF SC-740 CHAMBER
957.18
24" ISOLATOR ROW CONNECTION INVERT
957.17
BOTTOM OF SC-740 CHAMBER
956.67
UNDERDRAIN INVERT
956.67
BOTTOM OF STONE
8.50' 7.00.
[102.00' ] (84.001
5.09' 12" INLET PIPE
[61.08"] 2.50'
[30.00]
2.18' 1.67'
(26.16"] [20.04"]
i
6" INLET PIPE
6" FLAP VALVE
24" INLET PIPE
12" OUTLET PIPE
6" INLET ORIFICE
(SEE DETAIL)
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.
• THE SITE DESIGN ENGINEER MUST REVIEW ELEVATIONS AND IF NECESSARY ADJUST GRADING TO ENSURE THE CHAMBER
COVER REQUIREMENTS ARE MET.
• THIS CHAMBER SYSTEM WAS DESIGNED WITHOUT SITE -SPECIFIC INFORMATION ON SOIL CONDITIONS OR BEARING
CAPACITY. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR DETERMINING THE SUITABILITY OF THE SOIL AND
PROVIDING THE HEARING CAPACITY OF THE INSITU SOILS. THE BASE STONE DEPTH MAY BE INCREASED OR DECREASED
ONCE THIS INFORMATION IS PROVIDED.
24" SOLID LID 36" SOLID LID
- .........
96a-56 ± 963.6
STEPS (TYP)
WEIR
- - - ------
958.26
ti
522 BAYFILTER CARTRIDGE
957.
-` 956.63
955.27
[6.00"] 3" PVC TEE W/ FLOWDISK
3` PVC OUTLET MANIFOLD
3" FLEXIBLE COUPLER
SECTION A -A
SCALE: 1/4" = 1'
52 B7-6
PBAYFILTER
BFV
11LTER
,eyk
OUTLET PIPE
WATER QUALITY VOLUME
557 CF
AIR RELEASE VALVE
O
DRAINAGE AREA
POLYMER SEAL
CARTRIDGE DESIGN VOLUME
1250 CF
# BAYFILTER CARTRIDGES
1
CAPTURED SEDIMENT -CAPACITY'
131 LBS
INLET DRAINAGE
OUTLET
MATERIAL
PATHWAY
THE BAYFILTER STORMWATER MANAGEMENT SYSTEM IS A
FLOW CONTROL
STORMWATER FILTRATION DEVICE DESIGNED TO REMOVE FINE
MEDIA SPIRAL
ORIFICE
SEDIMENTS, HEAVY METALS, AND PHOSPORUS. THE BAYFILTER
SYSTEM RELIES ON A SPIRAL WOUND MEDIA FILTER CARTRIDGE
OUTLET DRAINAGE
WITH APPROXIMATELY 45 SQUARE FEET OF FILTRATION AREA. THE
MATERIAL
FILTER CARTRIDGES ARE HOUSED IN A CONCRETE STRUCTURE
INLET PLATE
THAT EVENLY DISTRIBUTES THE FLOW BETWEEN CARTRIDGES.
THE SYSTEM IS INLINE WITH AN INTERNAL BYPASS WEIR THAT
FILTER LEG
ROUTES HIGH INTENSITY STORMS AROUND THE CARTRIDGES. THE
AF
FILTER CARTRIDGES REMOVE POLLUTANTS FROM RUNOFF BY
OUTLET
FILTRATION (INTERCEPTION.JATTACHMENT) AND ADSORPTION.
<;
COLLECTION
'SEDIMENT CAPTURE PER CURRENT NJDEP APPROVAL
MANIFOLD
(DESIGN BY ENGINEER / PROVIDED BY OTHERS)
�a
i
�a
6" INLET PIPE
INVERT - 956.67 [Pf'2APASE9}
956.63
�J
�� U4
01
957.29 24" INLET PIPE
INVERT
6" INLET ORIFICE
HOLD DOWN BAR
VERTICAL DRAIN DOWN MODULE
ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL CITY OF WINSTON-SALEM,
FORSYTH COUNTY, NCDEQ, AND NCDOT STANDARDS, SPECIFICATIONS, AND DETAILS
u
36" SOLID LID
6.00'
PLAN VIEW
SCALE: 1/4" = 1'
3AYFILTER
PAGE 4)
12" INLET PIPE
INVERT - 95�56
958.26
STEPS (TYP)
24" SOLID LID
12" OUTLET PIPE
INVERT - 955-08
9955.27
WEIR
3" PVC OUTLET MANIFOLD
W FLEXIBLE COUPLER (TYP)
3" PVC TEE W/FLOW DISK
3" PVC PLUG
522 BAYFILTER CARTRIDGE
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L

ACCEPTABLE FILL MATERIALS: STORMTECH SC-740 CHAMBER SYSTEMS
AASHTO MATERIAL
MATERIAL LOCATION
DESCRIPTION
COMPACTION / DENSITY REQUIREMENT
CLASSIFICATIONS
FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE
PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
D
TOP OF THE 'C' LAYER TO THE BOTTOM OF FLEXIBLE
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS.
N/A
INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT
CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.
PREPARATION REQUIREMENTS.
PAVEMENT SUBBASEMAY BE PART OF THE 'D' LAYER.
AASHTO M145'
BEGIN COMPACTIONS AFTER 12" (300 mm) OF MATERIAL OVER
INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM THE
GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
A-1, A-24, A-3
THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 18" (450 mm)
PROCESSED AGGREGATE.
6" (150 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
C
ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT
OR
WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
SUBBASE MAY BE A PART OF THE 'C' LAYER.
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
PROCESSED AGGREGATE MATERIALS. ROLLER GROSS
LAYER.
AASHTO M431
VEHICLE WEIGHT NOT TO EXCEED 12,000 lbs (53 kN). DYNAMIC
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10
FORCE NOT TO EXCEED 20,000 lbs (89 kN).
EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS
AASHTO M43'
B
FROM THE FOUNDATION STONE ('A' LAYER) TO THE 'C' LAYER
CLEAN, CRUSHED, ANGULAR STONE
3, 357, 4, 467, 5, 56, 57
NO COMPACTION REQUIRED.
ABOVE.
A
FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE
CLEAN, CRUSHED, ANGULAR STONE
AASHTO M43'
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE 2,3
SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.
3, 357, 4, 467, 5, 56, 57
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.
4. ONCE LAYER'C' IS PLACED, ANY SOIUMATERIAL 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.
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
PERIMETER STONE
(SEE NOTE 4)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (3001
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER) I
'TO BOTTOM OF FLEXIBLE PAVEMENT FOR UNPAVED 1 8'
INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR, , 18"
INCREASE COVER TO 24" (6W mm). (2:4 m)
(450 mm) MIN` MAX
6"
SUBGRADE SOILS (150 mm) MIN
(SEE NOTE 3)
LDEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 6" (150 mm) MIN
12" (300 mm) MIN
NOTES:
1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) 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. 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 2".
• 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 550
LBS/IN/IN. 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.
STORMTECH
UNDERDRAIN DETAIL
NTS
STORMTECH
CHAMBER
UTLET MANIFOLD
FOUNDATION STONE
BENEATH CHAMBERS
ADS GEOSYNTHETICS 601T
NON -WOVEN GEOTEXTILE
STORMTECH
END CAP
FOUNDATION
BENEATH CHAMBERS
ADS GEOSYNTHETICS 601T
NON -WOVEN GEOTEXTILE -
DESIGN ENGINEER
4" (100 mm) TYP FOR SC-310 & SC-160LP SYSTEMS
6" (150 mm) TYP FOR SC-740, DC-780, MC-3500 & MC-4500 SYSTEMS
SECTION B-B
DUAL WALL
PERFORATED
HDPE
UNDERDRAIN
SC-740 TECHNICAL SPECIFICATION
NTS
r— 90.7" (2304 mm) ACTUAL LENGTH —I
12.2"
(310 mm)
29.3" , ,
(744 mm) 0 0
�-- 45.9" (1166 mm) --I
85.4" (2169 mm) INSTALLED LENGTH
<BUILD ROW IN THIS DIRECTION
(OVER SMALL CORRUGATION)
30.0"
(762 mm)
51.0"
(1295 mm)
START END
NOMINAL CHAMBER SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH) 51.0" X 30.0" X 85.4" (1295 mm X 762 mm X 2169 mm)
CHAMBER STORAGE 45.9 CUBIC FEET (1.30 m')
MINIMUM INSTALLED STORAGE" 74.9 CUBIC FEET (2.12 m3)
WEIGHT 75.0 lbs. (33.6 kg)
ASSUMES 6" (152 mm) STONE ABOVE, BELOW, AND BETWEEN CHAMBERS A A
B
PRE-FAB STUBS AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B"
PRE-FAB STUBS AT TOP OF END CAP FOR PART NUMBERS ENDING WITH 'T' t C
PRE -CORED END CAPS END WITH "PC"
PART #
STUB
A
B
C
SC740EPE06T / SC740EPE06TPC
6" (150 mm)
10.9" (277 mm)
18.5" (470 mm)
--
SC740EPE06B / SC740EPE06BPC
-
0.5" (13 mm)
SC740EPE08T /SC740EPE08TPC
8" (200 mm)
12.2" (310 mm)
16.5" (419 mm)
---
SC740EPE08B / SC740EPE08BPC
-
0.6" (15 mm)
SC740EPE10T / SC740EPElOTPC
10" (250 mm)
13.4" (340 mm)
14.5" (368 mm)
SC740EPEIOB / SC740EPE10BPC
-
0.7" (18 mm)
SC740EPE12T / SC740EPE12TPC
12" (300 mm)
14.7" (373 mm)
12.5" (318 mm)
SC740EPE12B / SC740EPE12BPC
---
1.2" (30 mm)
SC740EPE15T / SC740EPE15TPC
15" (375 mm)
18.4" (467 mm)
9.0" (229 mm)
---
SC740EPE15B / SC740EPE15BPC
--
1.3" (33 mm)
SC740EPE18T / SC740EPE18TPC
18" (450 mm)
19.7" (500 mm)
5.0" (127 mm)
---
SC740EPE18B / SC740EPE18BPC
-
1.6" (41 mm)
SC740EPE24B`
24" (600 mm)
18.5" (470 mm)
--
0.1" (3 mm)
ALL STUBS, EXCEPT FOR THE SC740EPE24B ARE PLACED AT BOTTOM OF END CAP SUCH THAT THE OUTSIDE DIAMETER OF
THE STUB IS FLUSH WITH THE BOTTOM OF THE END CAP. FOR ADDITIONAL INFORMATION CONTACT STORMTECH AT
1-888-892-2694.
" FOR THE SC740EPE24B THE 24" (600 mm) STUB LIES BELOW THE BOTTOM OF THE END CAP APPROXIMATELY 1.75" (44 mm).
BACKFILL MATERIAL SHOULD BE REMOVED FROM BELOW THE N-12 STUB SO THAT THE FITTING SITS LEVEL.
NOTE: ALL DIMENSIONS ARE NOMINAL
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ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL CITY OF WINSTON-SALEM,
FORSYTH COUNTY, NCDEQ, AND NCDOT STANDARDS, SPECIFICATIONS, AND DETAILS
RECORD DRAWING
THIS PLAN DEPICTS THE ORIGINAL DESIGN
REVISED TO INCLUDE ALL CONSTRUCTION
PHASE REVISIONS AND AS -BUILT INFOR-
MATION PROVIDED BY THE CONTRACTOR.
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DATE
0312812019
DRAWN BY
A. MAY
DESIGNED BY
B. DOWNS
CHECKED BY
R. BAKER
SCALE
AS SHOWN
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