SW7080906_APPROVED PLANS_20090727

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION, INSPECTION
DOC DATE
7697
YYYYM M D D
d

SUBJECT PROPERTY DATA
DEVELOPER/OWNER ROANOKE PROPERTIES, LTD. HORIZONTAL LOCATION AND DIMENSIONS OF EXISTING SITE FEATURES
1 SAILFISH DRIVE ARE BASED UPON FIELD INVESTIGATIONS PERFORMED BY BISSELL
MANTEO, NC 27954 PROFESSIONAL GROUP DATED jANUARY 9, 2009.
LOT DESCRIPTION DATA : LOT: MARKETPLACE PARCELS 3A,3B & 3C TOPOGRAPHIC INFORMATION BASED ON SITE SURVEYS AND FIELD
RECORDED REFERENCE: P.C. G SL. 98 INVESTIGATIONS PERFORMED BY BISSELL PROFESSIONAL GROUP FROM
PARCEL AREA 3(A): 21,566 SO. FT. (0.50 AC.) JANUARY 2005 THROUGH AUGUST 2008.
PARCEL AREA 3(B): 20,395 SQ. FT. (0.47 AC.) ELEVATION DATUM: NGVD 1929 5
PARCEL AREA 3(C): 19,834 SO. FT. (0.46 AC.)
SURVEY DATA : LOT BOUNDARY INFORMATION BASED ON RECOMBINATION PLAT 0e
TITLED "PIRATES COVE MARKET PLACE, PARCELS 3A, 3B, 3C, & 4" yy I muNn
PREPARED BY BISSELL PROFESSIONAL GROUP, DATED 9/6/05.
RECORDED UNDER PLAT CABINET G, SLIDE 98. a
CANAL CANAL 4
I \ \ q \ q \ q \ q \ q \ q \ q
SALES CENTER I \ o \ v \ v \ y \ y \ y \ 9 \ v
li���' \ °
MARKET PLACE PARCEL 1 q
RECOMBINATION
FORMERLY ��p '? 0 9�00 0 ��� ��� n 00 n�O
ROANOKE PROPERTIES. LTD. \ O° 0 1.` \ lo�,F \ !°'¢ c4`q \ !°�`fi t'A \ !oA`� A CC, \ 10 G� \ oq t
PIN 10-979910-37-8325 ! \ O l• \ S \ \
wT cp
��'-o .� \ m �0 m �i0 �m �0 m �10 \ �0 \ m ->0 \ �0 ° z o 0
\ o \ y \ s \ s \ ti \ ti \ ti \ ti
\ \ \
SAILFISH DRIVE SAILFISH DRIVE
50' - PRIVATE 50� R/W - PRIVATE
24' ASPHALT ROADWAY 24' ASPHALT ROADWAY +
EDP � � INFILTRATION TRENCH
INFILTRATION TRENCH INFILTRATION TRENCH
EXISTING 25•0 PVC SUMP DISCHARGE LINE ° _ ' �X DRAINAGE BASIN 3A EX. DROP INLETS EX. LANDSCAPING BERM
r- ss -- , 1ACK ILLEx 190' LONG x 2.5' DEEP DRAINAGE BASIN 2A EX. OUTLET REMOVED FR M EARTHEN BERM BASE DRAINAGE BASIN to EX. LANDSCAPING BERM
---- -------- _-a____ __a..� .,1_Y_e_e r_ __-. __�___J.__x..-__-______-� a 2.35' VADEx 185' LONG x 2.5' DEEP • 4 1.75' WIDEx 201' LONG x 2.75' DEEP EARTHEN BERM BASE
(APPROXIMATE LOCATION) N 59 445 E- 114.75' ';r _ II BACKFlLATE W/WASEED GRAVEL FILL SERVICE, W/LAND OVERLAY
STONE W/LANDSCAPING STONE
• . . h '--- II. MATERIAL, (SEE DETAIL) BACKFlLLED W/WASHED GRAVEL FILL CAP OUTLETS &BACKFlLL OVERLAY BACKFILLED W/WASHED GRAVEL FILL
MATERIAL, (SEE DETAIL) W/CLEAN SAND FILL 125' LONG x 5.25' WIDE (AVG.) MATERIAL (TYPICAL) OVERLAY
,._.. p / ` • TI - OBSERVATION 143' LONG x 3.5' WIDE (A'✓G.)
.._.. o
_ u � • WELL WELL WELL
p C2q ' .. A"aq • '_y �.�. N 27'21' �� : ` 14Z•45• - N 592721' E 154.89'
C�9 zzst zt w V
V
� o HARBORPLACE
N
EX. LANDSCAPING BERM NOW OR FORMERLY
\\ PERMEABLE PAVEMENT EX. DROP INLETS PERMEABLE'PAVEMENT PERMEABLE PAVEMENT EARTHEN BERM BASE HARBORPLACE P.O.A.
36.30 - - .fAt OF
BASIN to
m • ' 1 DRAINAGE BASIN _2A W/LANDSCAPING STONE 1575 McKEE ROAD
•, m / DRAINAGE BASIN 3A EX. OUTLET REMOVED FROM -' S,952 S.f.t OF -EXISTING PARKING OVERLAY DOVER. DE 19904-1380
m : `GONG ' AB:. ',� 36.30 - / .-7,292 S,F.t OF EXISTING PARKING
a o0 m 5,952 S.F.i OF PROPOSED PARKING SERMCE, Sc. DRIVES PIN 10-9799-10-37-8190
I OR FORMERLY I v, o . a & DRIVES CAP OUTLETS &-.BACKFlLL -& DRIVES -
NOW 140• LONG z 8' WIDE (AVGJ
',.i••. CONC. S3CA(}'r, . 0 3fi.40 - U.O.F. 5-202
FUTRELL PROPERTIES, LIMITED i q 35.70 0 o W/GLEAN SAND FILL
PARTNERSHIP NO. 1 > \\ 35.80 T
1008 OAK CREEK ROAD---
j
RALEIGH, NC 27615 >
PIN 10-9799-10-36-7926 Q --
D.B. 1454 PG. 424 II ----
P.C. E SL 558
` o PIRATES COVE TOURNAMENT PAVILION
- -
-' WOOD FRAME OPEN SIDED PAMUON -� '^ '" ( ) r ( ) 1
I
PIRATES COVE MARKET PLACE PARCEL 3 B PIRATES COVE MARKET PLACE PARCEL 3 A
OVER
SLAB ERETE SLAB A FLOOR5.5FLOORo PIRATES COVE MARKET PLACE PARCEL 3(C) j� SAILFISH VILLAS CONDO, BLDG 6000 SAILFISH VILLAS CONDO, BLDG 5000
: NOW OR FORMERLY L`Tf„ NOW OR FORMERLY NOW OR FORMERLY
ROANOKE PROPERTIES, LTD. ROANOKE PROPERTIES, LTD. ROANOKE PROPERTIES, LTD.
II 1 1 SAILFISH DRIVE ' 1 SAILFISH POINT' _!� 1 SAILFISH POINT
-` I PIN
INC 27954 56 I PINMANTE , NC 27954 83 1 MANTE , INC 27954
10-97 9 10-47 01 10 97 9 1 47 12 PIN 10-97 9-10-47-3322
--�-�- 35.80 P.C. G SL. 98 �"_"'??? SSS P.C. G SL 98
-__- P.C. G SL 98 '
--- 36.30 - o-----___ _r_____ a 35.80 (EXISTING 7,013 SF BUILDING) -I (EXISTING 7,013 SF BUILDING)
(FUTURE SITE OF SAILFISH VILLAS rc=_ c nn.i rFE- 6.20t
LINE TABLE
LINE
BEARING
LENGTH
L1
N29'12'11"W
4.23'
L2
S62'47'16"W
11.85'
L3
S26'41'57"E
4.27'
L4
N29'25'26"W
4.06'
L5
S62'40'03"W
11.71'
L6
S25'46'21 "E
5.68'
L7
N29'17'50"W
4.08'
L8
S61'49'32"W
11.72'
L9
S26'54'10"E
3.93'
CURVE TABLE
CURVE
RADIUS
ILENGTH
DELTA
CHORD
Cl
175.00'
58.96'
19'18'12"
N69'03'51"W 58.68'
C2
225.00'
39.40'
1.0-02'00"
N73'41'57"E 39.35'
C2A
225.00'
29.84'
07'35'51"
N74'55'02"E 29.81'
C2B
225.00'
9.57'
02'26'09"
N69'54'02"E 9.57'
C3
225.00'
36.23'
09'13'36"
N64'04'09"E 36.19'
I
30
)l_
CJ 4
,L l f10 kjl VM aO NIOISMIC
NOI SS I N1 N'001 N 3 N G9 VNVA
lV1N3NINOHIAN7 VNI108VO HIHON
G-AA(31;ddV
_�2
O/,Yl?# -2I" I/e') _b�mfj/
; } �'vw
50k
m x
LEDGEND
----
= RIGHT-OF-WAY
= ADJOINING PROPERTY LINE
= EXISTING BASIN TOP OF BANK
- - - - -
= EXISTING BASN TOE OF SLOPE
--------- 4-------
= EXISTING GRADE CONTOUR
®
= PROPOSED INFILTRATION TRENCH
0
= EXISTING IRON ROD
' 5
= EXISTING FIRE HYDRANT
4.70,
= EXISTING GRADE SPOT ELEV.
= EXISTING CATCH BASIN
= EXISTING PARKING/DRIVE
0
= EXISTING WATER SURFACES
0
= EXISTING CONCRETE SURFACE
''.
= EXISTING LANDSCAPING STONE
®
= EXISTING WOODEN WALKWAY
= EXISTING RIP -RAP
CURVE TABLE
CURVE
LENGTH
RADIUS
1 DELTA
CHORD BEARING
CHORD
Cl
1 58.96'
I 175.00'
1 19-18'12"
1 N69'03'51"W,
58.68'
C2
1 39.40'
225.00'
1 10-02'00"
1 N73-41'57"E,
39.35'
GRAPHIC SCALE
30 60
( IN FEET )
I inch = 30 ft.
120 1
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DATE:]SCALE:
MR
1 "=30'
DESIGNED:
CHECKED:
BPG
DMR
DNawN:
nwRovED:
DMK
DMR
SHEET:
1
2
OF
CAD FILE:
3114-PAV-CR
PROJECT NO:
3357

R
0
EX. LANDSCAPING BERM INFILTRATION TRENCH
EARTHEN BERM BASE DRAINAGE BASIN 1A
W/LANDSCAPING STONE 1.75' VIDE. 201' LONG x 2.75' DEEP
OVERLAY BACKFlLLED W/WASHED GRAVEL FILL
143' LONG x 3.5' WIDE (AVG.) MATERIAL (TYPICAL)
OBSERVATION
WLLL
PIRATES COVE MARKET PLACE PARCEL 3(A)
` SAILFISH VILLAS CONDO, BLDG 5000
NOW OR FORMERLYs '
' ROANOKE PROPERTIES, LTD.
1 SAILFISH POINT
MANTEO, NC 27954
PIN 10-9799-10-47-3322
P.C. G SL. 98
(EXISTING06.20't1 BUILDING)
FFE
--,�------------------------------- C"T'lol""447
EXISTING STRUCTURE
38'-0• (TYPICAL)
51
EX. LANDSCAPING BERM
EARTHEN BERM BASE
W/LANDSCAPING STONE
OVERLAY
,140' LONG x 8' VIDE (AVG.)
-INFILTRATION TRENCH
DRAINAGE BASIN 1
8' WIDEx 38' LONG x 3.83' DEEP
BACKRUED W/CLEAN SAND FILL
MATERIAL
INCLUDING 34 LF. OF SUBSURFACE
DETENTION CHAMBER, (TYPICAL)
CHAMBER INLET LINE
FROM ROOF GUTTER
COLLECTION SYSTEM
DOWNSPOUT
il -
_II-
.O
nnI
.....
_I__I
1111L'q2�
II
II
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Ii
II
I._I
IIIII
IIII
I_I
uI•II
i
iII
INSPECTION PORT INFILTRATION TRENCH
10"0 SCH 40 PVC PIPE RISER STORMCHAMBER 38 L.F. OF CONTECH
FOR CLEANOUT (TYPICAL) 34 L.F. OF CONTECH STORMCHAMBER, (TYPICAL)
STORMCHAMBER, (TYPICAL)
EXISTING/PROPOSED INFILTRATION TRENCH DETAIL
SCALE: 1°=5' (LOCATION AS DENOTED ON PLAN)
POROUS ASPHALT
f FG ELEV.: 6.2' MSLi
STONE
STONE
NOTE: ALL PARKING AREAS IN SAILFISH VILLAS TO BE POROUS PAVEMENT HIGH WATER TABLE
ELEV = 0.50 MSL
MATERIAL THICKNESS POROSITY STORAGE
POROUS ASPHALT 2" 0.085 0.17
#78 STONE 1" 0.39 0.78
#67 STONE 5" 0.46 2_30
TOTAL: 3.25"
NOTE: THIS PAVEMENT DETAIL AND SEPARATION REQUIREMENTS SHALL
BECOME PART OF THE BID AND CONSTRUCTION DOCUMENTS FOR SAILFISH VILLAS.
THE CONTRACTOR IS RESPONSIBLE FOR MAINTAINING THESE SPECIFICATIONS
DURING INSTALLATION OF THE POROUS PAVING SYSTEM.
TYPICAL POROUS ASPHALT INSTALLATION DETAIL
NOT TO SCALE MANAGED (LOCATIONS AS DENOTED ON PLAN)
RASIN Ln. SURFACE AREAGRAVEL BASE GRASS DEPTH FACTOR RESULTING BUA
BASIN #1A
1 5.952 S.F.
6°
1 .532
2,786 S.F.
BASIN #2A
7,292 S.F.
6°
.532
3,413 S.F.
BASIN #3A
1 5,952 S.F.
6-
1 .532
1 2,786 S.F.
PERMANENT SEEDING
THE PURPOSE OF PERMANENT SEEDING IS TO REDUCE EROSION AND DECREASE
SEDIMENT YIELD FROM DISTURBED AREAS, AND TO PERMANENTLY STABILIZE SUCH
AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTS TO SITE CONDITIONS, AND
ALLOWS SELECTION
OF THE MOST APPROPRIATE PLANT MATERIALS. THESE AREAS MUST BE SEEDED OR
PLANTED WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS AFTER FINAL GRADE IS
REACHED, UNLESS TEMPORARY STABILIZATION IS APPLIED.
PERMANENT SEEDING SPECIFICATIONS
Seeding Recommendations for Summer
SEEDING DATES- April to Jul
SEEDING MIXTURE P y
Species Rate
Common bermudagrass 10/1.000 Elf (sprigs)
1-2 Ib/1,000 sf (seed)
SEEDING NOTES-
1. SPRIG OR SOD. MOISTURE IS ESSENTIAL DURING INITIAL ESTABLISHMENT. SOD
MUST BE KEPT WATERED FOR 2-3WEEKS, BUT CAN BE PLANTED EARLIER OR LATER
THAN SPRIGS.
SOIL AMENDMENTS -
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TESTS OR APPLY 3,000 LB/ACRE
GROUND AGRICULTURAL LIMESTONE AND 500 LB/ACRE 10-10-10 FERTILIZER, OR 50
LB/ACRE NITROGEN FROM TURF -TYPE SLOW -RELEASE FERTILIZER. ADD 25-50
LB/ACRE NITROGEN AT
2-3 WEEK INTERVALS THROUGH MIDSUMMER.
SPRIGGING -
PLANT SPRIGS IN FURROWS WITH A TRACTOR -DRAWN TRANSPLANTER, OR
BROADCAST BY HAND.
FURROWS SHOULD BE 4-6 INCHES DEEP AND 2 FEET APART. PLACE SPRIGS ABOUT
2 FT. APART IN A ROW WITH ONE END AT OR ABOVE GROUND LEVEL.
BROADCAST AT RATES SHOWN ABOVE, AND PRESS SPRIGS INTO THE TOP 1/2-2
INCHES OF SOIL WITH A DISK SET STRAIGHT SO THAT SPRIGS ARE NOT BROUGHT
BACK TOWARD THE SURFACE.
MULCH -NONE
MAINTENANCE -
WATER AS NEEDED AND MOW TO 3/4 TO 1-INCH HEIGHT. TOPDRESS WITH 40
LB/ACRE NITROGEN IN APRIL, 50 LB IN MAY, 50 LB IN JUNE, 50 LB IN JULY, AND
25 LB IN AUGUST.
CONSTRUCTION SEQUENCE
SCHEDULE
CONSTRUCTION ACTIVITY
SCHEDULE CONSIDERATION
Construction Access-
First land -disturbing
Construction entrance,
activity -Stabilize bare areas
construction routes, equipment
immediately with gravel &
parking areas
temporary vegetation as
construction takes place.
Sediment Traps & Barriers
Install principal basins after
Basin traps, sediment fences,
construction site is accessed.
& outlet protection
Install additional traps and
barriers as needed during
grading.
Runoff Control-
Install key practices after
Diversions, perimeter dikes,
principal sediments traps and
water bars, and outlet
before land grading. Install
protection
additional runoff -control
conveyance measures during
grading.
Runoff Conveyance System-
Where necessary, stabilze
Stabiles streambanks, storm
streambanks as early as possible.
drains, channels, Inlet & outlet
Install principal runoff conveyance
protection, slope drains
system with runoff -control
measures. Install remainder of
system after grading.
Land Clearing & Grading-
Begin major clearing and grading
Site preparation- cutting,
after principal & key
filling & grading, sediment
runoff -control measures area
traps, barriers, diversions,
installed. Clear borrow & disposal
drains, surface roughening
areas as needed. Install
additional control measures as
grading progresses. Mark trees &
buffer areas for preservation.
Surface Stabilization-
Apply ytemporary or permanent
Temporary & permanent
stabilization measures
seeding, mulching, sodding,
immediately on all disturbed
riprap.
areas where work is delayed or
complete.
Building Construction-
Install necessary erosion &
Buildings, utilities, paving.
sedimentation control practices
as work takes place.
Landscaping & Final
Stabilize all open areas, including
Stabilization-
borrow & spoil areas. Remove &
Topsoiling, trees & shrubs,
stabilize all temporary control
permanent seeding, mulching,
measures.
sodding, riprap
BASIN I.D. WIDTH DEPTH LENGTH VOLUME
BASIN #1
1 8'
1 3.83'
76' (TOTAL)
1,290 C.F.
BASIN #2
8'
1 3.83'
76' (TOTAL)
1,290 C.F.
BASIN #3
1 Er
1 3.83'
76' (TOTAL)
1,290 C.F.
FOR PAVED AREAS
ASPHALT SURFACE
PAVEMENT BASE
90% COMPACTED CLEAN
FILL OR 3/4" - 2"
CRUSHED WASHED FG ELEV.: 6.2' MSLt
STONE
m
..L ..z. :"o. ...
FILTER FABRIC ATZ
STONE/SOIL INTERF,...,
CLEAN SAND MATERIAL
CHAMBER BOTTOM EA"
TRENCH R01
L-LIGHTWEIGHT STABILIZATION
N NETTING (SUPPLIED)
UNDER ALL STORMCHAMBERS
y EX.
FOR UNPAVED AREAS
LAND GRADING CONSTRUCTION SPECIFICATIONS
1. Construct & maintain all erosion & sedimentation control practices &
measures in accordance with the approved sedimentation control plan and
construction schedule.
2. Remove good topsoil from areas to be graded and filled, and preserve it
for use in finishing the grading of all critical areas.
3. Scarify areas to be topsoiled to a minimum depth of 2 inches before
placing topsoil.
4. Clear & grub areas to be filled to remove trees, vegetation, roots, or
other objectionable material that would affect the planned stability of fill.
5. Ensure that fill material is free of brush, rubbish, rocks, logs, stumps,
building debris, and other materials inappropriate for constructing stable fills.
6. Place all fill in layers not to exceed 9 inches in thickness, and compact
the layers as required to reduce erosion slippage, settlement or other
Y q PPae9
related problems.
7. Do not incorporate frozen material or soft, mucky, or highly compressible
materials into fill slopes.
8. Do not place fill on a frozen foundation, due to possible subsidence and
slippage.
9. Keep diversions and other water conveyance measures free of sediment
during all phases of development.
10. Handle seeps or springs encountered during construction in accordance
with approved methods.
11. Provide a groundcover (temporary or permanent) on exposed slopes within
21 calender days, following completion of any phase of grading; and, a
permanent groundcover for all disturbed areas within 15 working days or 90
calender days (whichever is shorter) following completion of construction or
development.
12. Provide adequate protection from erosion for all topsoil stockpiles, borrow
9 P P P ,
areas and spoil areas.
MAINTENANCE
Periodically check all graded areas & the supporting erosion & sedimentation
control practices, especially after heavy rainfalls. Promptly remove all
sediment from diversions and other water -disposal practices. If washouts or
breaks occur, repair them immediately. Prompt maintenance of small -eroded
areas before they become significant gullies is an essential part of an
effective erosion & sedimentation control plan.
BACKFlLL W/
OBSERVATION WELL. SEE PLAN FOR LOCATION
(SEE DETAIL THIS SHEET)
MIN. OVERFLOW ELEV: 6.5' MSLt
_ EARTHEN BERM BASE
PARKING LOT o W/LANDSCAPING STONE OVERLAY
.:.:
n rv. a n'+ .F...�' f •.:._ ...:. ...... ............
TRENCH SHALL BE ENCASED
WITH GEOTEXTILE FILTER CLOTH W/A MIN.
'4" OVERLAP CLOTH SHALL BE
Geotex STYLE 601
AS MANUFACTURED BY SI Geosolutms
OR APPROVED EQUAL
SHWL 0.5' MSLt 0 '\ i����\�%�%�\�� \\%: %��i\����\ �4" CLEAN SAND BASE LAYER
INFILTRATION TRENCH INSTALLATION DETAIL
NOT TO SCALE (LOCATIONS AS DENOTED ON PLAN)
GRAVEL STORAGE LAYER SHALL CONSIST BASIN I.D. WIDTH DEPTH LENGTH VOLUME
OF CLEAN WASHED STONE DEMONSTRATING
THE FOLLOWING GRADING CHARACTERISTICS;
SIEVE % PASSING
1.5" 100%
90% COMPACTED CLEAN
FILL COVER CONTINUE
CRUSHED WASHED STONE
TO SURFACE
FG ELEV.: 6.2' MSL3
1.0"
95%
0.5" 45%
#4 <5%
BASIN #1A
1 1.75'
2.50'
1 201
352 C.F.
BASIN #2A
2.35'
2.50'
185
435 C.F.
BASIN #3A
1.85'
2.50'
190
352 C.F.
OBSERVATION WELL
W/REMOVABLE WATERTIGHT CAP
(EXTEND ABOVE FINISHED 4°0 SOLID PVC PIPE
GRADE FOR ACCESS) THROUGH
BERM SECTION
-/ 000
°000
000
0 O 4.0 PVC
0 PERFORATED PIPE
0 0
0 16 INCH LONG
Q00 1/2-INCH DIAMETER
O O/EBAR ANCHOR
FILTER FABRIC O
14 INCH X 14 INCH QOO4"0 SOLID PVC PIPE
1/8-INCH STAINLESS 0 0STEEL FOOT\TIE 000S ROUGH
0
FILTER FABRIC CUT OUT GUIDE FOR
AGAINST 6" DRAIN PIPE
TRENCH WALL
e
iv 4' X 7' HEAVYWEIGHT
STABILIZATION NETTING (SUPPLIED)
UNDER FLOW RECEIVING STORMCHAMBERS
TYPICAL STORMCHAMBER INSTALLATION
CUT OUT GUIDE
FOR 4' DRAIN PIPE
UNDISTURBED SUBSOIL
OBSERVATION WELL DETAIL
NOT TO SCALE (LOCATIONS AS DENOTED ON PLAN)
j 2'- 10"
CUT OUT GUIDE FOR 12" PIPE INSERT
TYPICAL STORMCHAMBER DETAIL
NOT TO SCALE LOCATIONS AS DENOTED ON PLAN
ENGINEERING SPECIFICATIONS FOR STORMCHAMBER
1. EACH UNIT WILL BE 34.04" HIGH, 60" WIDE AND 102.5" LONG.
2. LAY-UP LENGTH IS 97.1" (START AND END UNIT) AND 91.1" (MIDDLE UNIT).
3. EACH CHAMBER WILL BE FORMED FROM HIGH MOLECULAR WEIGHT/HIGH DENSITY
POLYETHYLENE. USE OF FILTER FABRIC BETWEEN THE SOIL AND STONE BACKFILL LAYER AND
LINING THE SIDE WALLS OF THE EXCAVATED AREA IS REQUIRED TO PREVENT INTRUSION OF
SOIL OR SILT INTO THE CHAMBERS AND SURROUNDING STONE. EACH CHAMBER HAS 14 RIBS
OF APPROXIMATELY 3.6" IN .HEIGHT, 3.8" WIDE AT THE TOP AND TAPERING TO 4.4" AT THE
BOTTOM.
4. SPACING OF THE RIBS AT THE BOTTOM OF THE CHAMBER IS APPROXIMATELY 4.9" AND
APPROXIMATELY 3.2" AT THE TOP. ONE SMALLER RIB SIZED DIMENSIONALLLY TO
EFFECTIVELY NEST UNDER AND INTERLOCK TO CONNECT UNITS IS 2.9" HIGH, 3.3" WIDE AT
THE TOP OF RIB, AND 4.1" WIDE AT THE BASE.
5. OVERALL HEIGHT TO THE INSIDE RIB IS 30.44". OVERALL HEIGHT TO THE OUTSIDE RIB IS
34.04". INVERT HEIGHT FOR 12" PIPE IS 16.49". INVERT HEIGHT FOR 10" PIPE IS 17.49".
INVERT HEIGHT FOR 8" PIPE IS 18.49".
6. EACH UNIT HAS THE ABILITY TO ACCEPT UP TO A 12" FEED PIPE IN THE UNIT'S SIDE
PORTAL. EACH UNIT IS DESIGNED TO HANDLE 10 CUBIC FEET OF STORAGE PER LINEAL FOOT,
FOR A TOTAL OF 85.42 CUBIC FEET. STONE DIAMETER WILL BE 1"- 2".
INSTALLATION OF STORMCHAMBER SYSTEMS TRENCH PREPARATION
1. DO NOT EXCAVATE TRENCH UNTIL DRY WEATHER IS FORECAST LONG ENOUGH TO ALLOW AT LEAST COVERAGE OF THE
STORMCHAMBER SYSTEM WITH FILTER FABRIC PRIOR TO RAINING.
2. EXCAVATE TO A WIDTH AND LENGTH SUFFICIENT TO ACCOMMODATE THE NUMBER OF STORMCHAMBERS PLUS A MINIMUM ONE
FOOT BORDER AROUND THE ENTIRE BED. THE BOTTOM OF THE BED MUST BE LEVEL, UNLESS OTHERWISE SPECIFIED.
3. DO NOT USE HEAVY EQUIPMENT ON THE EXCAVATED TRENCH BED IN ORDER TO AVOID SOIL COMPACTION.
4. IF USE OF HEAVY EQUIPMENT ON THE EXCAVATED TRENCH BED CAN NOT BE AVOIDED, SCARIFY THE TRENCH BOTTOM AND
BREAK UP SOIL CLUMPS AND TILL SMOOTH BEFORE ADDING THE STONE BASE.
5. LINE TRENCH WALLS WITH A 4-OUNCE NON -WOVEN FILTER FABRIC SUCH AS MIRAFI 140N OR 140NC, SYNTHETIC INDUSTRIES
401, OR AMOCCO 4545 OR 4535. OVERLAP ADJACENT FILTER FABRIC BY AT LEAST 2'. DO NOT PLACE FILTER FABRIC
UNDER THE STORMCHAMBERS.
6. UNLESS OTHERWISE SPECIFIED, PLACE 6" OF CRUSHED, WASHED, 1" TO 2" HARD STONE ON THE BOTTOM OF THE TRENCH.
THE BASE MUST BE LEVEL AND AT A ZERO GRADE.
7. IF IT BECOMES IMPRACTICAL TO LEVEL THE STONE BASE BY HAND, USE A LOW PRESSURE, TRACKED DOZER, NOT EXCEEDING
1,100 LBS/SF, MAINTAINING AT LEAST 6" OF STONE UNDER THE TRACKS AT ALL TIMES.
STORMCHAMBER INSTALLATION.
1. SEPARATE STORMCHAMBERS USING ONE OR TWO 2X4 STUDS FOR LEVERAGE. DO NOT USE ANY DAMAGED UNITS -
CONTACT HYDROLOGIC SOLUTIONS IMMEDIATELY.
2. ROLL OUT TWO ROWS OF THE LIGHT WEIGHT STABILIZATION NETTING (PROVIDED WITH THE STORMCHAMBERS) PERPENDICULAR
TO THE ROWS OF STORMCHAMBERS WHERE THE START STORMCHAMBERS WILL BE PLACED. PLACE THE EDGE OF THE SECOND
ROW OF NETTING UNDER THE FIRST ROW AND UNDERLAY 1'.
3. PLACE ONE PIECE OF THE HEAVY WEIGHT STABILIZATION NETTING (PROVIDED WITH THE STORMCHAMBERS) PERPENDICULAR TO
AND UNDER EACH STORMCHAMBER THAT WILL BE RECEIVING INLET STORM DRAIN PIPES. PLACE THE FRONT EDGE OF THE
NETTING UNDER, BUT NOT EXTENDING BEYOND, THE CLOSED END WALL OF THE STORMCHAMBER. HAVE THE NETTING EXTEND
EQUALLY BEYOND BOTH SIDES OF THE STORMCHAMBER.
4. PLACE THE START MODEL STORMCHAMBERS (COMPLETELY CLOSED AT THE SIDE PORTAL END, PARTIALLY OPEN AT THE TOP
PORTAL END), SPACED A MINIMUM OF 5' 9" APART AT THE CENTER LINE OF THE END WALLS. POSITION THE CLOSED ENDS
APPROXIMATELY 1' FROM THE TRENCH WALL.
5. CUT OPEN THE SIDE PORTALS FOR THE INFLOW STORM DRAIN PIPES (SIZE AND LOCATION SPECIFIED) AND LATERAL
CONNECTING PIPES (8" ID SCHEDULE 40 SMOOTH WALLED PVC, UNLESS OTHERWISE SPECIFIED) WITH A RECIPROCATING SAW,
ROUTER BIT ON A DRILL, OR KEYHOLE SAW ALONG THE DEFINED INDENTED CIRCLE. IF THE CUT EXTENDS MORE THAN 0.5"
BEYOND THE INDENTED CIRCLE, PLACE A PIECE OF THE FILTER FABRIC OVER THE HOLE, CUT AN X JUST SHORT OF THE
WIDTH OF THE OPENING, AND INSERT THE PIPE. THE CONNECTION DOES NOT NEED TO BE WATER TIGHT. 12" ID SMOOTH
WALLED PIPE IS THE LARGEST DIAMETER PIPE THAT CAN BE INSERTED INTO THE SIDE PORTALS.
6. MARK THE MIDPOINTS OF Q' LENGTHS OF 8" ID SMOOTH WALL PIPE AND INSERT INTO THE ADJACENT STORMCHAMBERS
WHERE SPECIFIED SO THAT THE MARKED MIDPOINT IS CENTERED BETWEEN THE TWO ADJACENT STORMCHAMBERS. IF THE
LOCATIONS ARE NOT SPECIFIED, ADD 8" PIPES ACROSS ALL ROWS DIRECTLY OPPOSITE WHERE THE INFLOW STORM DRAIN
PIPE(S) IS INSERTED. THIS WILL TYPICALLY CONNECT AT LEAST ALL THE START MODEL STORMCHAMBERS OF EACH ROW.
ADDITIONAL CONNECTIONS ACROSS ALL ROWS OF STORMCHAMBERS SHOULD BE MADE SO THAT THE TOTAL DIAMETER OF PIPE
CONNECTIONS BETWEEN ANY PAIR OF ROWS IS APPROXIMATELY EQUAL TO THE TOTAL DIAMETER OF ALL INFLOW STORM
DRAIN PIPES.
7. ROLL OUT ADDITIONAL LIGHT WEIGHT STABILIZATION NETTING, OVER -LAYING THE PREVIOUS SHEET BY 1' AND PLACE THE
FIRST RIB OF A MIDDLE MODELS (COMPLETELY OPEN AT SIDE PORTAL END, PARTIALLY OPEN AT TOP PORTAL END) OVER
A F THE TART MO THE LAST RIB OF EACH 0 E EL STORMCHAMBERS. S D
8. SCREW THE MIDDLE MODEL STORMCHAMBERS TO THE START MODELS NEAR THEIR BASE ON BOTH SIDES WITH REGULAR 2 ¢"
OR 3" DRY WALL SCREWS. THE GAP BETWEEN THE TWO STORMCHAMBERS NEAR THEIR BASE MUST BE CLOSED ENOUGH TO
PREVENT STONE FROM MIGRATING INTO THEM TO PREVENT THE POTENTIAL FOR FINISHED SURFACE SUBSIDENCE.
9. CONTINUE PLACING AND SCREWING THE REST OF THE STORMCHAMBERS, ONE AT A TIME, INSERTING ANY ADDITIONAL
LATERAL -CONNECTING 8" PIPES AS SPECIFIED (OR AS INSTRUCTED ABOVE), LEAVING AT LEAST 1' BETWEEN THE END OF THE
END MODEL (COMPLETELY OPEN AT THE SIDE PORTAL END, COMPLETELY CLOSED AT THE TOP PORTAL END) AND THE
TRENCH WALL
10. PLACE ONE PIECE OF THE HEAVY DUTY STABILIZATION NETTING UNDER EACH STORMCHAMBER THAT WILL BE INSTALLED
WITH A 10 INCH PVC RISER FOR ACCESS BY A VACUUM TRUCK FOR CLEAN OUT. EXTEND THE NETTING ABOUT 1' BEYOND
BOTH SIDES AND TOP PORTAL END WALL OF THE STORMCHAMBERS.
11. FOR PVC RISERS, CUT A HOLE IN THE TOP PORTAL FOR A 10" ID PVC RISER - ALONG THE LARGER OF THE TWO INDENTED
CIRCLES, UNLESS AN 8" PIPE IS SPECIFIED. IF THE CUT EXTENDS MORE THAN 0" BEYOND THE INDENTED CIRCLE, PLACE A
PIECE OF THE FILTER FABRIC OVER THE HOLE, CUT AN X SLIGHTLY SHORTER THAN THE WIDTH OF THE OPENING, AND
INSERT THE PIPE. USE SMOOTH WALLED SDR 35 OR PVC SCHEDULE 40 OR SIMILAR PIPE. ATTACH THREE SMALL ANGLE
IRONS EQUALLY SPACED APPROXIMATELY 1' UP FROM THE END OF THE PIPE. INSERT THE BOTTOM 1' OF PIPE INTO THE
TOP PORTAL AND BACKFlLL. ATTACH A CAP TO TOP OF PIPE TO PREVENT DEBRIS ENTRANCE AND PLACE AN ACCESS
CASTING IN A CONCRETE PAD ABOVE, ONCE ALL FILL IS PLACED.
12. DEPOSIT 1"-2" CRUSHED, WASHED, HARD STONE DIRECTLY ALONG THE CENTERLINE OF THE STORMCHAMBERS TO EVENLY
FLOWS DOWN EACH SIDE TO KEEP THE STORMCHAMBERS IN PROPER ALIGNMENT. DO NOT PLACE THE STONE DIRECTLY
AGAINST THE CLOSED END WALLS AT THE START AND END OF THE ROWS. LET THE STONE FALL IN PLACE AT THE
STORMCHAMBER END FROM PLACEMENT DIRECTLY ON THE STORMCHAMBER. ADD STONE TO AT LEAST 6" ABOVE THE
STORMCHAMBERS.
13. COMPACT THE STONE COVER WITH A VIBRATORY COMPACTOR, NOT TO EXCEED A DYNAMIC FORCE OF 10,000 LBS, OR WITH
A LOW PRESSURE, TRACKED VEHICLE NOT EXCEEDING 1,100 LBS/SF.
14. COVER THE TOP OF THE STORMCHAMBERS AND THE 1' PERIMETER AREA WITH 4 OUNCE NON -WOVEN FILTER FABRIC.
OVERLAP ADJACENT SHEETS BY AT LEAST 2'.
IMPORTANT:
IF IT IS NOT PRACTICAL TO LEVEL THE MINIMUM OF 6" OF STONE ABOVE THE STORMCHAMBERS BY HAND,
USE A LOW PRESSURE, TRACKED DOZER, NOT TO EXCEED 1,100 LBS/SF, AND DO NOT RUN DOZER ON
ANYTHING LESS THAN 6" OF STONE ABOVE THE STORMCHAMBERS. CAUTION MUST BE EXERCISED WHEN
PLACING STONE ON TOP OF THE STORMCHAMBERS SO THAT EXCESSIVE PRESSURE IS NOT APPLIED
DIRECTLY ON THE STORMCHAMBERS BY EQUIPMENT "BUCKETS".
BACKFILLING
1. BACKFlLL SOIL MUST BE FREE FROM LARGE STONES AND LARGE ORGANIC MATERIAL (E.G. TREE LIMBS AND ROOT
STUMPS), AND IS CAPABLE OF BEING COMPACTED TO AT LEAST 90% OF THE STANDARD PROCTOR TEST (AASHTO
METHOD T-99). IF NOT, CRUSHER RUN OR OTHER SUITABLE BACKFlLL MATERIAL MUST BE USED. THE STONE
SURROUNDING THE STORMCHAMBERS CAN ALSO BE EXTENDED UP TO THE PAVEMENT SUBGRADE,IF DESIRED.
2. BACKFlLL AND COMPACTION OF THE SOIL BACKFlLL MUST BE ACHIEVED IN LIFTS LESS THAT 1' HIGH. GRADING OF
LIFTS SHOULD START IN ONE CORNER OF THE SYSTEM WITH A LOW PRESSURE, TRACKED DOZER, WITH A
PRESSURE NOT EXCEEDING 1,100 LBS/SF, KEEPING AT LEAST 1' OF FILL IN FRONT OF THE BLADE AT ALL TIMES.
COMPACT LIFTS TO 90% STANDARD PROCTOR WITH TRACKED VEHICLES NOT EXCEEDING 1,100 LBS/SF, OR WITH A
HAND OPERATED COMPACTOR OR VIBRATORY ROLLER NOT EXCEEDING A DYNAMIC FORCE OF 20,000 LBS.
3. KEEP THE STORMCHAMBER SYSTEM CLOSED OR PROTECTED FROM RECEIVING SEDIMENT UNTIL SITE IS
COMPLETELY STABILIZED (GRASS GROWING AND ALL PAVEMENT PLACED).
IMPORTANT: AFTER COMPACTION OF BACKFlLL AND SETTING OF FINAL GRADE, AVOID PARKING ON OR TRAVERSING
OVER THE STORMCHAMBER INSTALLATION WITH HEAVILY LOADED TRUCKS AND HEAVY EQUIPMENT UNTIL PAVED.
IMPORTANT: THESE INSTRUCTIONS ASSUME ACCEPTED CONSTRUCTION PROCEDURES AND ASPHALT TRUCKS THAT DO
NOT EXCEED SPECIFIED DOT LOAD LIMITS. UNCUSTOMARY LOADS OR IMPROPER LOAD DISTRIBUTIONS IN VEHICLES MAY
REQUIRE ADDITIONAL COVER. CONTACT HYDROLOGIC SOLUTIONS FOR INSTALLATION UNDER ABNORMAL CONDITIONS.
INSTALLATIONS NOT IN COMPLIANCE WITH THESE INSTRUCTIONS WILL VOID THE WARRANTY.
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DATE:
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09/02/08f
NOTED
DESIGNED:
CHECKED:
BPG
DMR
DRAM
AITRCV-D:
DMK
DMR
SHEET:
2
2
OF
CAD FILE:
3114-PAV-CR
PROJECT NO:
3357