HomeMy WebLinkAboutSW7960601_APPROVED PLANS_19961223STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �Z�
DOGTYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD
�•. CL DITCH 39 Y4
INVERT (313,23) 4
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44
6RN �It
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iv i3 a� 9
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,
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9' WDE (INSIDE 70
`T 19(.Yi (INSIDE TO 9V510E)
LONG CLASS "I" V
RIP RAP APRON -SEE e `� w, A� Op0 SrREis
A9'b (DETAIL ON SHEET C1.4( / LANE
SOUS \ O. /,
{4'q ]y.26 r - jNEW 2 x 2 DROP INLET ' « -F..4 ,;,1., Vic! . BOUND tANESS S NwY l7 & . -7
TO MEET NCDOT STDS Otp C/
f` err TOP OF GRATE - 49.60 ! to I.ss \ IS H
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LEGEND -
(0.GRADING
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SPOT GRADEwWI
NEW ,SPOT GRADE ON TOP OF NEW
\Q
PAVEMENT
-000 -
EXISTNG CONTOUR LINES TO REMAIN
-� I(1^,
NEW CONTOUR LINES
ABBREVIATIONS
TW TOP OF WALK
TOW TOP Cf.VALL
TC TOP OF CJRB
FG FINISH GRADE
i 'i NEW 24" RCP I I s,, - _ tANEs
! 4
/
/ r
f 1 35.4'
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RAW' 7
VA/ � / / , ,, - 1 i Aa2s4• 4 `' � � � �'� �'� _.. ' .� a z_ \ . - __ _ _ W10TH � ES
> t ; NEW 3 x 3 JUNCTION BOX
49 a W/ M.H. & COVER TO 't '�6s7. �I : s.t: A �� �� 4< -` 49.E Ir r ���
`I MEET NCDOT STANDARD - - _
f/ h j TOP = 50-0
INV. 24" IN = 44.00 I t F.G • s_ a axat r
INV. 24' OUT = 43.90
y f C- •, 4
if,
NEW 2 x 2 DROP 1 t
i 4 . , r OP OF GRATE = 50.80 I I i / .-- z'C., :NEW CONC. HEAOW'ALL iINV. 15" OUT = 49.C5 j d s
TO MEET NCDOT STDS '' '
INV. = 43.15�:
r - it
. 43 • ( I ate__ d - - 1 i
iiiiiiiiiiiii,illt" - 4'g� I APPR^X 105 LF I
1
!APPROX. 245 L.F. - - - " s r. ..
NEW 24" R.C_P. t-� i I , i r - = ` - �g t NEW 15" RCP ! T ! / y 'a j4 d }
5 t III r 3 J
:kA
_ If
If
f f
If
IT-
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CORV�R Cr ErENT;04
POND. 1.5% SLCPE MAX- ! f' ( _ •s E `tE , '
d NEW 2 x 2 DROP INLET ;
46 -' - _ _• >j I TOP CF GRATE 51.0-
1
6 INV. 15' RCP IN = 48.30
TF INV. 10 RCP CUT = 48.25
-- I tf iii
,4
a 49 S439 C3 .� Ir r-- :7 •K^� .�1
♦.� / .ss35� 1' �ADFPDX 110 LF
NEW 15" RCP
r
if I
I COTG - INV.=48.35
s \R `NA E
D€VIDE TP Cr ifr
`APPROX. 45 L.F.
r !°ate` - .~- t •X! / a - y�• \.` \\
5NEW 8" C `4S
1.0% MIN. L'INV 47 0zt _ •t -_ -
if
NEW 3 x 3 JUNCTION BOX COTG INV.-47 r3. ``�4 t - ,1 1� _,i=t is _bad . o, _ _```'"_-�
W/ M.H. & COVER TO 51 ' '` 115" RCP � .s s4
MEET NCDOT STANDARD i C so I ' `' INV. = 47.401 5 f` \ _ *
TOP = 49.25if
(INV. 18" IN = 45.55 t rcc Tr
!INV. 247 CUT = 46.45 I r" '" 47 _73.5
i NEWOUTFLOW STRUCTURE I ,.,/` - ---44NEW 15" RCP
i
WITH TRASH RACK a _ 1�,0--- -�.s: «•.:_
SEE DETAIL SHEET C 1.4 1, I DE-TE.N?tOh f
• _ _ ( at=~ 1 # • )
44 u _ 46 r ♦ It 7 a i
51
�49 s,= i TOP OF GRATE, = 50.80 5;
ss1 I\ / J ,Q ;INV. 15" RCP 'OUT = 49.3^ ' 4\2 ; %'::,,1 i =
ug
o' , a* se FE1IDE
'4EN7 } 'F Cf.t4 _s.-.:.,.'.8
21
`.- ice_ gp<85& 4 U.
- ``-r - 1 i (1' \ter ' t 1 _-� �a `o�` �Zhlh - - \ 51 /q�'-••_-.t§- �[ 565-^ t 4. 3,i
RCP - ' ❑ r -- _ c _ a-d__'-�- ems, • .. ` '4 - t
•\ V. = 48.60
1 �� 335.3<�'Y.5,-na � ( ..� T i O •ti,� -- - - _ _. }., =.may- it
I k
S+ t I r % �) i v i� -- a _- - A_- ` ��
NOTE: SEE PLAN FOR EXACT PIPE SIZES AND LOCATIONS j
CtiS'T RON TOP Cmu
2
24e RCP,
FL'W LNE�
SEE `IrE
FLAN FOR WVEE
PLAN VIEW IT RCP
LINE OF FNI%ED CAST IPON TOP CODER
GRADE OR PAVING/ StE PLAN FOR ELEVATION
SECTION A -A
6' GRA4ULAR
FILL
(V Sff PALLS
.A F4;7OV WITH
}4Em-SIII, TTor,
Fk1R:ZOt,x & VEP.TtCJLL
NTS JUNCTION IROX
3' x 3' JUNCTION BOX
NOTE: SEE GRADING PLAN FOR EXACT
PIPE SIZES AND LOCATIONS
CAST IRON TGRATE SEE
GRADING PLAN FOR TOP ELEVATION
A A
I
15' RCP ti' b 15 RCP
7.
Y�
I PLAN VIEW
I
LIN
GRA OF FPFAV7, CAS( IPJN TOP GRATE SEE
uPA;E CR PAVIN'G CRALFNG PLAN FOR TOP ELEVATION
_ I - T GRWJLAR
II FILL
15 RC-� __
IT RCP
FLOW
f: 2
SEE SITE
r
PLAN FOR INVERT t SSE WALLS
if 3'-Cr x S AND 93TTCM WITH
/5 94PS 6 127 O.C.
4-� NvfiZOMK h VO i1CAL
SECTION A A
ws CATCH2
TYPICAL 2 x 2 DROP INLET
I
j
A� VED
NORTH .., ENVIRONMEN
MANA0901W COMMIS`
DIVISION OF "/" - �IMNTAL NIA'
Permit No. �"� 79LOGC /
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REVISIONS
2- Cf Ia/99,
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� 1G/C9/96
4.
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7.
ARCHITECT:
LE
DRAFTSMAN: RH
CHECKED BY: a1H
DATE: 04-22-9E
8'vN
Clo2,
CL DITCH 35. 94 -
@, � INVERT TOP eox(3WCUL2, �VERT (46.43)
\`
It
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9' WOE (INSE TO
�IN$OE ro 1i�
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r / FABRIC IhLET
PROTECTION
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116
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EROSION CONTROL LEGEND
RR RIP RAP
Co CONSTRUCTION ENTRANCE
PS PERMANENT SEEDING
:Io SEAL
EXISTING CONTOUR
FINISHED GRADE
PROPERTY LINE
SEDIMENT FENCE
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CONSTRUCTION ENTRANCE
FABRIC INLET PROTECTION
TEMPORARY SEDIMENT TRAP I
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REVISIONS
1. 05 30 96
2.10/09/96
3.
.
5.
6.
7.
ARCHITECT:
LE
DRAFTSMAN:
RH
CHECKED BY:
MH
DATE:
ppo4L22-96
Uq!)
f
c 1 0 3
PERSPECTIVE VIEWS
2x4WOOD
fRAWE
NOT TO SCALE
IP INLET PROTECTION
DROP A'CET
W17H GRATE
GATHER EXCESS -
AT CORIVERS
Q
QONS` RUCTu'N SpEQF"C nn
J �,'•Yi l � I�AI,,,NS
1. STONE SIZE - USE MSHA SIZE No. 2 (2-1/2` TO 1') OR AASHTO DESIGNATION -�
M3, SIZE No. 2 (2-1/27 TO 1-1/Z'). USE CRUSHED STONE.
2. LENGTH - AS EFFECTIVE, BUT NOT LESS THAN 50 FEET.
3. THICKNESS - NOT LESS THAN EIGHT (8) INCHES.
4. WIDTH - NOT LESS THAN FULL WIDTH OF ALL POINTS OF INGRESS OR EGRESS.
5. WASHING - WHEN NECESSARY, WHEELS SHALL BE CLEANED TO REMOVE SEDIMENT
PRIOR TO ENTRANCE ONTO PUBLIC RIGHT-OF-WAY. WHEN WASHING IS RECIURED,
IT SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE WHICH DRAINS
INTO AN APPROVED SEDIMENT TRAP OR SEDIMENT BASIN. ALL SEDIMENT SHALL
BE PREVENTED FROM ENTERING ANY STORM DRAIN, DITCH, OR WATERCOURSE
THROUC;H USE OF SHAD BAGS, GRAVEL, BOARDS OR OTHER APPROVED M=THODS.
6. MAINTENANCE - THE ENTRANCE SHAH BE MAiPTAINED IN A CWNTr.N 'kl-I,".^H
W'LL PRE'iFNT TRACKING OR FLOWING OF SEDIMENT ONTO Puff RIGHT-OF-WAY
THIS MAY REQI'.RE PERIODIC Tr`P DnESS•NG W 4 AM'AONAL ST' NE AS
C:kiiW,CNS DEMAND AND REPwR ANDI-GR CLEANOUT OF ANY MEICSLPES LSED TIC
'RAP SE^ W-41, ALL SO MEhT SPI.LED, U 1_'°`_^, W.SSI tEC CR TR1 XE-- 0tt70
P1LkLV RA-.L'S-QF d'A? W.�ST BE REMi-ttED j,tM A,cL"
ENOT TO SC A' L'
CE STABILIZED CONSTRUCTION ENTRANCE
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fL'L PFINJ7 70 AAC/A?4 Bfft1V Cis lVSFA:1 WE f'TC£
aa77/ c0Y94cr A0411 RA?kY f"'S" WITH 7AE GWX.AO
NOT TO SCALE _ ERG-DC1
SF1 TEMPORARY SILT FENCE
1 ROW - E HOLES PER Row
EQUALLY SPACED AROUND
PERIMETER OF RISER
f
ELEVATION
OF STAKE AND
FABRIC
ORIENTATION
STAKES
F# TERED
WATER
FABRIC
RUNOFF WATER
_
WITH SED/ME�
_
BUR/ED FABRIC V
SILT FENCE DROP INLET PROTECTION
Specific Application
This method of inlet protection is oppAcab/e where the inlet
drains a relobvely flat area (slopes no greater than 5X)
where inlet sheet or overland flows (not exceeding I cfs) are
typical. The method shall not opp/y to inlets receiving
concentrated flows, such as in street or highway medians.
ERO-DO2
50' mm.
r As
*uaed
8' ram I,y, � f�� L`r
it L'
12' min. or
I w h
Cac7se Agg�cc;e
: _ e�A.t
3e' Cwr RGER
"
TYR SPACING BETWEEN
9 7 J`E
BARS AND PLATES
^ WELD TO PLATES
1/4- STEEL PLATES -
ATTACH TO RISER USING
2'X2'X7/4' ANGLE IRON
A�,
/4' STEEL BARS (TYP.)
E36'
ETO RISER
CUP RISER -
TRASH RACK
NS
36' CUP RISER Wf ANTI -VORTEX
p 50 YR - 49-86
RISER
BARREL
PLATES & TRASH RACK. SEE
TRASH RACK DETAIL. WELD 1;4
-
p 25 YR =49.68
STEEL PLATE ON BOTTOM.
'qU7 10 YR = 49.44
TOP OF RISER
2' DIA. HOLE (T;'P)
-
ELEV. 49.00
-
INLET ELEV. 4Z00
000
CLASS B STONE
'^
Z00
COMPLETELY
SURROUNDS RISER
O
O O
BARREL
•8' CMP 0 0 VJx
(ROTATED 90- FOR CLARITY)
PERMANENT
WATER SURFACE
INVERT = 47.00
_
ELEV. = 47.00
7
" m
6' SCH 40 PVC TEE
THREADED PLUG
Q d ,\/// - #57 WASHED STONE
d
C
DRAWDOWN DEVICE-
-
-
6' GALV. STEEL PIPE
THREADED PLUG WITH
- \
& FITTINGS, ATTACH
1-3/4' DI& HOLE -
TO RISER
_
-DRILLED THROUGH
-
a
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MIN.
-
3
RIF6'
CLEARANCE 0OUTFLOW
STRUCTURE
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3 - E•
075
9'
12-
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18'
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ANTI -SEEP COLLARS
AT CL OF DAM
GRADE
EROSION & SEDIMENT
CONTROL NARRATIVE
PROJECT DESCRIPTION
AUTO PARTS RETAIL STORE
ZONED
APPROXIMATELY 1.3 ACRES OF THE SITE WILL BE GRADED
APPROXIMATELY 1,000 C.Y. OF MATERIAL WILL BE CUT AND
BALANCED ON SITE. NO MATERIAL WILL BE HAULED OFFSITE.
EXISTING SITE CONDITIONS
THE EXISTING SITE IS UNDEVELOPED. THE SITE DRAINS
PREDOMINANTLY TO THE WEST WITH AN AVERAGE OF 2%
ADJACENT SITES
THE ADJACENT PROPERTIES ARE PREDOMINANTLY SINGLE FAMILY
RESIDENCES. THERE ARE NO STREAMS ON OR ADJACENT TO
THE SITE. THERE ARE NO EXISTING STATE WATERS ON OR
WITHIN 200' OF THE SITE.
CRITICAL AREAS
NO CRITICAL AREAS ARE EXPECTED TO BE ENCOUNTERED ON THE
SITE. STANDARD EROSION CONTROL PRACTICES SHOULD PREVENT
ANY EROSION OR SEDIMENT FROM LEAVING THE SITE.
STORMWATER MANAGEMENT
THE EXISTING SITE DRAINS PREDOMINANTLY TO THE WEST.
THE PROPOSED GRADING IS DESIGNED TO MATCH THE EXISTING
DRAINAGE PATTERNS FOR ANY DRAINAGE BASIN (SEE HYDROLOGY
REPORT) DESIGN OF EROSION CONTROL MEASURES MEET 10 YEAR
24 HOUR STORM USE REQUIREMENTS.
INSTALLATION NOTE
INSTALLATION OF EROSION CONTROL MEASURES AND PRACTICES SHALL
OCCUR PRIOR TO, OR CONCURRENT WITH, LAND DISTURBING ACTIVITIES.
EROS!ON & SEDIMENT CONTROL MEASURES
Unless otherwise indicated, all vegetative and structural erosion and
sediment control practices shall be constructed and maintained according
to at least the minimum standards and specifications of the North
Carolina Erosion and Sediment Control Planning & Design Manual dated
December 1, 1993. The mirimum standards of the handbook shall be
adhered to unless otherwise waived or approved by a variance.
PLANNED EROSION & SEDIMENTATION CONTROL PRACTICES
1. Inlet Protection - Practice 6.51
Fabric inlet protection is to be placed around the inlet to be
located in the right-of-way.
2. Si't Fence Barrier - Practice 6.62
Silt fence sediment barriers will be installed down slope of areas
with minimal grades and around top soil stockpiles to filter
sediment -laden runoff from sheet flow
3 Ternp rory Ccnst-uc5on Entrance - Practice 6.06
A temporary construction entrance shall be installed as located
on the drawings. During muddy conditions, drivers of construction
vehiCies wiN be required to clean off their wheels before entering
the Mghway Runoff created during this procedure sholl pass
tfrough on approved sediment removing process.
4. Tem orory Sediment TraD - Practice 6.60
Temporary sediment traps ore to be constructed as shown on the
grading pion for this protect They are to be constructed such
that oil Site distured runoff shall concentrate in the sediment
trap before leaving the site.
5. Other practices shell be provided if determined by the Engineer
or City E&SC Admiristrator.
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MAINTENANCE
{S
1. All erosion and sediment control practices will be checked
for stability and operation following every run-off producing
rainfall but in no case less than once every week. Any
needed repairs will be made immediately to maintain all
practices as designed.
2- Sediment will be removed from the block inlet protection
device when storage capacity has been approx. 50% filled.
3. Sediment will be removed from behind the sediment fence
when it becomes about 5.0 ft. deep at the fence. The
sediment fence will be repaired as necessary to maintain
a barrier.
4. All seeded areas will be fertilized, reseeded as necessary,
and mulched according to specifications in the landscape
plan to maintain a vigorous, dense vegetative cover.
CONSTRUCTION SCHEDULE
1. Obtain plan approval & other applicable permits.
2. Flog limits of work.
3 Hold preconstruction confrence.
4. Install all required erosion control measures prior to beginning
cny grading activity.
5. Sediment troping measures will be installed as a first step in
grading and will be seeded and mulched immediately following
installation. Installation shall be complete prior to the commence-
ment of any land disturbing activity.
6. Install storm drainage including inlet protection.
7. Rough grade site and stockpile topsoil. Topsoil will be stripped
from areas to be graded and stockpiled for later use and will
be stabilized by silt fencing.
8. Finish the slopes around building as soon as rough grading is
oornplete. Leave the surface slightly roughened and vegetate
and mulch immediately.
9. Complete final grading for roads and parking and stabilize with
gravel.
10. Complete final grading for building.
11. Complete final grading of grounds, topsoil critical areas, and
permonently vegetate, landscape, and mulch.
12. Ai erosion and sediment control practices will be inspected
vekly and after rainfall events. Needed repairs will be mode
Immediately. The job superintendent shot! be responsible for the
installation and maintenance of all erosion and sediment control
p-actices.
13. Ater achieving adequate stabilization to the satisfoction of the
C. t;: E&SC Administrator, the temporary E&S controls will be
e'eaned up and removed.
14. Es ^noted time before final stabilization -- 3 months.
15. Eue to the short time frame of this project all required seeding
cn-4/or sod will be permanent and shall be maintained during
tie course of construction. All landscaped areas damaged
ehcil be repaired if possible or replaced prior to final
co-eptonce of project by owner.
16. !I required seeding shall be Hydro seeding with appropriate
fertiizer and mulch added. Slopes greater than 2.1 shall be
,^'Qed rather than seeded. All sod shall be fescue.
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SCALE: 1"
= 20' '
REVISIONS
1. 10 09 96
I
2.
3 r
,
4. {
5.
6.
7.
ARCHITECT:
LE
DRAFTSMAN: MWN
CHECKED
BY:
LE
DATE: 4
22 96
-
F I