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Engineers
Planners
Surveyors
„a &Associates, Inc. Lic. No. F-0334
Since 1918
107 East Second Street 6131 Falls of Neuse Road, Suite 300
Greenville, NC 27858 [phone] Raleigh, NC 27609 [phone]
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' ..._
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'b `1 OPERATIONS
tY `" p p EMERGENCY
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NOT THE RESULT OF A BOUNDARY SURVEY.
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p ; J ��'� .° p ty � � m __�.$w,.... 362 �`� sI GN j -`E I h �. y, ^�
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g0 I pp �� 381.20 �X -~------•-380 x �1 p1 �1 RURAL ADVANCEMENT FOUNDATION
p D.B. 716, P. 713
1 S �� EX.
COMPUTED P.B. 97, P. 135 =
1��' 0 UILDIN PARCEL NO. POINT, NO IRON Z
gyp°' Epp' h� p �� 9741-56-7545.000 FOUND OR SET
5`b �0 " pN• TOWN OF PITTSBORO
p' I D.B. 391, P. 43
'Sp p`L ppp• PARCEL N0.
kph' I 9741-56-6755.000
COUNTY OF CHATHAM
BOARD OF EDUCATION
D.B. 514, P. 163
P.B. 38, P. 13 w
J
U
DATE: 7-18-07
DRAWN BY: JPP
CHECKED BY: RLJ
NOTICE: NOTE: _
CONSTRUCTION SITE SAFETY IS THE SOLE RESPONSIBILITY THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN
0 20 40
OF THE CONTRACTOR NEITHER THE OWNER NOR THE APPROXIMATE WAY ONLY AS DISCLOSED BY AVAILABLE UTILITY COMPANY
ENGINEERHALL BE EXPECTED TO ASSUME ANY RECORDS AND HAVE NOT BEEN INDEPENDENTLY VERIFIED BY THE
co
FBK:--
RESPONSIBILITY FOR SAFETY OF THE WORK, OF PERSONS COMPANY. NO GUARANTEE IS EITHER EXPRESSED OR IMPLIED AS TO CHF:AT
ENGAGED IN THE WORK, OF ANY NEARBY STRUCTURES, OR THE COMPLETENESS OR ACCURACY THEREOF. THE CONTRACTOR SHALL
OF ANY OTHER PERSONS. DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE SCALE HOR 1"=40 FT. 07_501
COMMENCING WORK, AND AGREES TO BE FULLY RESPONSIBLE FOR ANY
VER 1"=-- FT.
AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY THE
0
CONTRACTOR'S FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND
ALL UNDERGROUND UTILITIES. THE CONTRACTOR SHALL NOTIFY THE
DESIGN ENGINEER IMMEDIATELY IF A CONFLICT IS APPARENT.
X
W
O
O
W FOR INFORMATION PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
PURPOSES ONLY: PARKING LOT MODIFICATIONS AND EXPANSION
SURVEY INFORMATION Engineers
TAKEN FROM SURVEY ]liversPlanners EXISTING CONDITIONS
BY ANC ENGINEERING, Surveyors
INC. DATED 7-18-07 Associates,Inc. Lic. No. F-0334
o Since 1918
107 East Second Street 6131 Falls of Neuse Road,Suite 300 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT N0. SHEET
0
SURVEY N/A DRAFT N/A DESIGN N/A CHECK N/A 1� = 40 N/A 2008107 Colo
4
s
V

❑ o
ll
l
0 11 BUILDING DEMOLITION NOTES:
WM
\ — — — — — — — — — _ _
_ _ �_ _ _ v _ _ _ �,�; � 1 ) CONTRACTOR SHALL OBTAIN ASBESTOS
1- - - - - - - - - - - -
\ �- - - -- - - - - - SURVEY REPORT DATED APRIL 17, 2008 PRIOR
TO DEMOLITION.
U.S. HIGHWAY 64 // /
2) CONTRACTOR SHALL REMOVE AND DISPOSE ALL
, ASBESTOS MATERIALS ACCORDING TO ALL STATE
MILL ASPHALT _ / f
4 WIDE X 1 AND FEDERAL REGULATIONS PRIOR TO DEMOLITION.
DEEP / — — —
pp qyy _• 1 3
® .- a __ E' .,., �1 .✓ � Tw .., G / \ 1
- - - - - - - ® - - - - - - - - - - - - - - - - - GENERAL DEMOLITION NOTES:
I - - -- - - M - - - - - - - - - - - - -
1 ) ALL DEMOLITION DEBRIS SHALL BE REMOVED
,,y ° FROM THE SITE, EXCEPT FOR LIGHT FIXTURES AND
RELOCATE HALL BE TURNED OVER TO THE
{I "MEMORIAL TREES di-
AS
DIRECTED BY � � ,�' SIGNAGE WHICH
OWNER.
�C OWNER
REMOVE CONCRETE • � 2) LIGHTING TO BE REMOVED SHALL BE REMOVED IN
CURB AND GUTTER 0 SUCH A WAY THAT THE REMAINING LIGHTING
F: — —TP�
z SAW CUT CLEAN REMAINS FUNCTIONAL.
� EDGE
E � REMOVE ASPHALT
PROTECT TREE DURING I �r06 PAVEMENT ;F
CONSTRUCTION
REMOVE
TREES CLEAR AND GRUB
�
TO DISTURBED AREA
REMOVE ASPHALT PAVEMENT I ze LIMITS
� P S� Z3�S
R MOVE
C CRETE
REMOVE CONCRETE I "
CURB AND GUTTER five W K CLEAR AND GRUB
`\ AND REMOVE ROCKi
r 1zi : i
i PIILE o
{ F•x E '� E REMOVE LIGHT
r� (SEE NOTES 1 & 2) ,
I £ c a
� 1
u
i
MOVE LIGHT
RE
(SEE NOTES 1 & ) REMOVE LIGHT TREE
' F F R H
REMOVE
REMOVE CONCRETE (SEE NOTES 1 & 2)
a /
CURB AND GUTTER _
�� �� _
MILL ASPHALT 4' WIDE X 1" D " fir
s£
11
LAJ
I ..._. .. ._ ,.,.
. j�� tF�e�3 S -a ...,.. .._. J1
��a�•F'�� €IT`S,�,£ ............._ .._.._..,.. ...7... .... ....� o
iI ` y _.. _
T is
.i I �� ,{ xi���_'�' i 3?, E•a13}}�f` y ri- ?' O O
REMOVES I
777
U
0 £ � � �/� GRAVEL �
' b1 <
M WALK
W
W
u I REMOVE CONCRETE
s �
'£ CURB AND GUTTER
SAW CUT CLEAN EDGE i REMOVE
/ �,. N
REMOVE ASPHALT PAVEMENT
I � E
O 0
ry
REMOVE CONCRETE CURB AND GUTTER
t
MILL ASPHALT �' W
I z' 4' WIDE X 1" DEEP 3.. _ ® C7
REMOVE FS
REMOVE CONCRETE SIDEWALK I CONCRETE /
REMOVE CONCRETE \ U
UMPSTER PAD
REMOVE 24 L.F. OF 15" RCP n //
i:4
WALK
h CONCRETE
REMOVE 15 L.F. OF 8" RCP REMOVE /
STEPS
$ „ �:- .. .-. -a.'..h`.:.•'na".ZW r4 a"Ce ...fu^C "'"f'.`i.^xa"A� _
MILL ASPHALT
,< M L
' WIDE X 1" DEEP
a,
SAW CUT CLEAN .._ _. ...
_...
....... - SAW CUT CLEAN EDGE
. EDGE
s
REMOVE CONCRETE
REMOVE DRAINAGE STRUCTURE -
� CURB AND GUTTER
SAW CUT CLEAN EDGE
+-z Yx`iiv ,w p•`k' khii31".
1 REMOVE METAL PLATE
SAW CUT CLEAN
EDGE (SEE NOTE X)
REMOVE CONCRETE CURB AND GUTTER � y "• � �
o
SAW CUT CLEAN EDGE) = '
e
_____ � � =,i MOVE NOTE.
sQ s, z �' GRAVEL PAD
.p
i •T .e ........... ........... S.9'n'+a �r;?y`Ef H.CCT•,,. ...t. '
RAV
g SEDIMENT CONTROL
{ -- EROSION AND
. _ �-__.__ _ .. • _ , . L ALL i i
STAB
REMOVE CONCRETE WALK % W
F•
{ TP ,� MEASURES PRIOR TO ANY DEMOLITION ACTIVITY.
�-
{ CLEAR AND GRUB REMOVE ASPHALT PAVEMENT ~' (SEE SHEET C 5 0 0
�.,
I I I TO DISTURBED AREA
{ ° LIMITS
PAVEMENT DEMOLITION LEGEND
I
PAVEMENT TO BE REMOVED
TP TP TP n
TP TP
FCI
S TP TP � � Y � •a
fl
,- — SMITH„
N. A® ° 1" PAVEMENT MILLING GRAPHIC SCALE
v { 30 0 I 15
30
{ CONCRETE TO BE REMOVED ( IN FEET )
a
N REMOVE CHAINLINK AND 3 STRAND
wM BARBED WIRE FENCING
O 1 inch = 30 ft.
M
. ®``'f11""° PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
CA PARKING LOT MODIFICA PONS AND EXPANSION
g
® En ineers
{ ®® � ®® Surveyors
® DEMOLITION PLAN
`— Lic. No. F-0334
Ilivel-
20744 Associates,Inc.m Since1918 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
®® Oe � 107 East Second Street
,.. 6131 Falls of Neuse Road,Suite 300
I
;:•`� Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT N0. SHEET
® Poe
A®®L•5� `®` SURVEY DRAFT PN DESIGN DB CHECK DS �� — 30 NA 2008107 C 10�
o ®»►nneve
0
C
°
U

E]
0 NOTES:
1. 10' MAXIMUM BETWEEN CONSTRUCTION JOINTS.
- - - - - - - --- 15' MAXIMUM BETWEEN CONSTRUCTION JOINTS
ON MACHINE POURS.
2. 112" EXPANSION JOINT EVERY 90',
N 717217.6084 U.S. HIGHWAY 64 3. 3000 PSI CONCRETE MINIMUM, 4" SLUMP MAXIMUM.
(70
E 1945594.3324 N 717212.7841 1-GHT--'
E 1945696.8769:�� OF-
WAY) 4. LIQUID MEMBRANE CURING COMPOUND SHALL MEET
THE REQUIREMENTS OF SECTION 1026-2 OF NCDOT
- - - - - - - - - - - - - - - - STANDARDS & SPECIFICATIONS FOR ROADS AND
STRUCTURES.
5. ALL CONSTRUCTION JOINTS SHALL BE FILLED
WITH JOINT FILLER AND SEALER IN ACCORDANCE
WITH NCDOT ROADWAY STANDARD DETAIL 846.01.
N 717145.1102
E 1945697.5850------ 24"
4f I I 1 11
+ so It 18"
4" CURB AND GUTTER
N 717110.2696
E 1945683.3439
(C)
SLoPE=1
0
0
0
4' CONCRETE WALK
50'1�BUFFER
N 71708 30'
3.5465 20
ZONE 1
E 1945656 5607 ZONE 2
24' CURB AND GUT7FR
164'
N 717054,9683 4 10 NO 'SCALE
E 1945643.9725
IDE FLUSH CURB 226'
E )ETAIL)::!
16.21'
82'
IF I )US PAV,, MENT CONCRETE CURB STOP 10' 1 24"
)ETAIL T His 12" WIDE FLUSH CURB AT FLUSH CURB (TYP.)
12" 12"
SHEE Fal (SEE DETAIL)
HANDICAP
RAMP Nx
24' CURB AND GUTTER
N 71 12.8 11 N 7170z��.3150 SLOPE-17 FT'
E 1 5642.1
El 9461 .1653
8 1
13
00
............. +
24mVALLEY TYPE GUTTER
7YI 3: NO SCALE
V)
12"
LK,
0
6', RETE
<
_17 64' +
28' 6' CONCRETE WALK
4
? 72' URBAND GU
0 C 8- -------- 82' TTER
z RAMP CMANDI'CAP PARKING SIGN
Lj EXISTING CONCRETE =64'
10'
_j
0 21,50'
0
R72'
EXIST 12' 12' 12" FLUSH CURB
24" CURB AND GL ICAP EXISTING BUILDING
JTTER HAND
RAMP < NO SCALE
LLj
EXIST. HANDICAP 0�
r-mr"NING SIGN 24" CURB AND LL_
GUTTER 0
SEE DETAIL
SHEEI W0U-__11 1 24" CURB AND
111.5 11.5' GUTTER EXISTING 12"
1 0 � 0 (D 12" FLUSH CURB
BUILDING 0 E 6" OF 1/2"
0
n
g NEW DUMPSTER PAD CRUSHED STONE
SEE DETAIL SHEET C300 FS] ry 0 AGGREGATE
5' WIDE lzx
2 " ' I".. A
CONCRETE 3" POROUS ASPHALT COURSE
AND _66iTER WALK AAA
-7- SLOTTED HDPE 2" FILTER COURSE, 1/2"
24" 4
- CURB -HANDICAP RAMP UNDERDRAIN IN CRUSHED STONE AGGREGATE
N 716828.0478 00 AND GUTTER
E 1945604.2372 L El FILTER SOCK
+
12" RESERVOIR COURSE,
1-1/2" - 3" STONE
50'�BUFFER
N 716826.4151 1 30
zu
E 1945637.3320 ZONE 1 2" FILTER COURSE, 1/2"
_7T ZONE 2 CRUSHED STONE AGGREGATE
#Qb
0
"M NON-WOVEN GEOTEXTILE
FABRIC
5 72' PERWOUS PA VEMENT SEC77ON
12" WU)E-`FCU_§pT�_URt3 WIDE FLUSH CURB NO SCALE
194.5' (6 9' (SEE DETAIL)
(SE-EDETAIL) Typ.
14' WIDE x 6' CHAINLINK 393' 198.5' DICAP PARKING 24" CURB AND,,,,,, N 716764.472J'8
FUTURE SIGN
DOUBLE SWING GATE W/3 GUTTER E 1946181
48.22' BUILDING I -----C0017CRETE-C 30.00' .101
1 114' STRAND BARBED WIRE STOP N 7167
6' CHAINLINK"FENCE AT FLUSH CURB (TYP.) Lo 42-610
77' 3 STRANDBARBED WIRE -0 Uj E 1946190.39 7 11
Z
GRAVEL PARKING 0
N 6" OF "ABC" STONE
(SEE DETAIL THIS SHEET)
�6741\4,883
- - -- - - - - ---
-- - - -- 1 51�
_j >1�
rmY5/
< FCI
"SMITH's NOTES:
FILTER FABRIC
N 716717.9kk52
N 716714.6950
E 1945690.8825 E 1945886.3N31 .....
PAVEMENT LEGEND 1. ALL DIMENSIONS AND RADII
Ln AT CURB IS TO BACK OF CURB GRAVEL PARKING SEC 7 7ON
2. ALL MANHOLES, VALVE BOXES AND
0
OTHER AT GRADE UTILITY ACCESS NO SCALE
NEW PAVEMENT
STRUCTURES SHALL BE ADJUSTED TO
FINAL FINISHED GRADE OR TOP OF
ASPHALT.
PROJECT % IMPERVIOUS PER CURRENT UDO PAVEMENT OVERLAY
TOTAL AREA=244,025 S.F. (5.60 AC.)
CHA THAM COLIN TY LA W ENFORCEMEN T CEN TER
y EXISTING IMPERVIOUS AREA 63,205 S.F. (1.45 AC.) CA PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION
U 14;1 0.
Uj I
% IMPERVIOUS=25.9% GRAPHIC SCALE 0,00 PARKING LOT MODIFICATIONS AND EXPANSION
NEW CONCRETE 0
30 0 15 30
Engineers
PROPOSED IMPERVIOUS AREA 92,452 S.F. (2.12 AC.) Planners
U J
% IMPERVIOUS=37.9% Sm Surveyors
Plivers SITE PLAN
IN FEET ) NEW PERVIOUS PAVEMENT 20744 Associates,Inc. Lic. No. F-0334
EXISTING PERVIOUS AREA= 180,820 S.F.(4.15 AC.) 1 inch 30 ft. Since 1918
00
0 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
ADDITIONAL IMPERVIOUS AREA=29,247 S.F.(0.67 AC.) 107 East Second Street 6131 Falls of Neuse Road,Suite 300
Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone]
PROJECT% IMPERVIOUS PER CURRENT UDO 16.2%
H. SCALE V. SCALE PROJECT NO SHEET
*4
------------------------- - - - - - -
'5' LSLOPE=1'
U �6,f,rpj ID L
SURVEY DRAFT PN DESIGN DB CHECK DS JO, NA 2008107 C200

--------- -- ---
------ — -- --- -- ---- --- --
--------- --- --- ----- -- -- ------ ----
-------
-——————————
—————————————-
C3 0 It
0
0
0 0
10 0
If
It It CUT EXISTING CURB AND It
11 If 11 11
11 11 t II iPROVIDE TEMPORARY ASPHALT
11 It I
ACCESS TO PHASE 1 PARKING
1L
r
F
I I I Z L - r--- I � I I I z L -- I
W It
� �, , i I !,
t
0 0 0 0
———j
-7 am
0 0
BARRICADE
NON-PARKING ACCESS SHALL 0f 0I
BE MAINTAINED FOR SERVICES It
TO REAR OF BUILDING UNTIL BARRICADE
AND AFTER OVERLAY (DURING 0
OPERATIONS
OVERLAY
OPERATIONS
f!
E ONLY) -—7
It 1 "11111. PROVIDE CONTINUOUS ACCESS
., lb
BARRICADE ROUTE TO FRONT ENTRANCE AT BARRICADE
(DURING ALL TIMES _ �❑ - ' 1
OVERLAYttf C3
t. J It
OPERATIONS R�RICAD Cr-
ONLY) is a. 0
0
-0
_j
PROVIDE CONTINUOUS ACCESS
- -- i i I , i --� - -- ----- ROUTE FROM REAR PARKING TO
FRONT ENTRANCE AT ALL TIMES
- --- --- ------
A
PHASE 4 PHAZiE 2
----------------- —----------
----------
--------- --
-- -------------- ---- --
MAINTAIN ONE LANE OF
INBOUND TRAFFIC TO REAR (:x
PARKING AT ALL TIMES. 0
iI PROVIDE FLAGMEN AND/OR
0
TRAFFIC CONTROL MEASURES 0
AS NEEDED.
1 0 0 to 0
It
It 11
All r
x f ON
It
BARRIdA—DE1 ��` \. t
it
LL 011 rilyl", it
�21
0 0 0 0 1 1 GENERAL NOTES:
1 . INSTALL ALL EROSION CONTROL
MEASURES PRIOR TO PHASE ONE
it CONSTRUCTION.
2. PROVIDE FLAGMEN TO ROUTE
TRAFFIC IN AREAS OF PARTIAL
oll % t
CONSTRUCTION WHERE CONTINUOUS
ACCESS MUST BE MAINTAINED.
3. CONTRACTOR TO PROVIDE CONES
BARRELS AND BARRICADES AS
_, I ` \ 1 I , � I I I fi , I , i
NEEDED.
FRI
A/
-_7
I I I, II
L 1 10
Ll it k
J
�44
It
—0-
it wa k I it
0 it
-0 _0 It 1. 0
Ln
Ln PROVIDE CONTINUOUS ACCESS PROVIDE CONTINUOUS ACCESS
► I I GRAPHIC SCALE
-____-� ROUTE FROM REAR PARKING TO _--�:�'ROUTE FROM REAR PARKING TO 50 0 25 50
N I I r __-_- -_---_
FRONT ENTRANCE AT ALL TIMES
FRONT ENTRANCE AT ALL TIMES - 1
1 !7119
IN FEET
------- -- I inch 50 ft.
——————— —— -
%
CHATHAM COUNTY LAW ENFORCEMENT CENTER
y PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION
PARKING LOT MODIFICA PONS AND EXPANSION
p A E ;&3 RHASE
Engineers
Planners
v ` ore PHASING PLAN
20744 (e Plivenq!ll
Z Associates,Inc. Lic. No. F-0334
Since 1918
CENTER TOWNSHIP, CHATHAU COUNTY, NORTH CAROLINA
107 East Second Street 6131 Falls of Neuse Road,Suite 300
Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE ROJECT NO. SHEET
p
----------
-------------------------
7777777L
_T
kib L tv; SURVEY DRAFT PN DESIGN DB DS C201
1 50' NA 2008107
CHECK

EXISTING CONCRETE
O F] WALK MATCH EXIST.
EXISTING 24" CURB 24" CURB AND
0 / wM AND GUTTER GUTTER
m
V
eyp,
- - - -- - - - - - - -
G
NEW 5' CONCRETE
WALK RAMP WALKING SURFACE
SHALL BE SLIP RESISTANT
1-a
U\S AND A CONTRASTING COLOR
MATCH EXIST.
Qp H WA Y '07
Hi 64 4/ TO SIDEWALK
+1 70� RIGHT-OF7-Wx" ,
0 AY)
or'
LIMITS OF
- - - - - - - EXISTING
'Ole
POWER
4-
POLE
DISTURBED AREA
'410
J-11111
0 K3Mff
E_11.
-
"N
7
Q
10
MATCH
k --------
EXISTfit i\zl ra
7.1 n
PT 13+ 61 QY_
3:
746 1 1 W
if
,,LIMITS OF
R DISTURBED AREA Uj
COL
PC 1)2+98.45
k,
380.04
STA: 10+10.24
B(ORETEN11 OFFSET: 20.43 L
48 50' 0
N�lk=x �2
BOTTOM =, 368.0
SEE SHEET C401
STA: 10+14.53
OF OFFSET: 23.00 1 '
0119
PT 1,2+60.131"
5
01 'UFFk�R
R43.00, bDl 11 30' Ao
MATCH
`II ZO�E I STA: 10+14.53
EXIST 20,
it k \ ,
CNL
2
OFFSET: 18.00 L
ui 1
STA: 10+20.64
T 24" CURB AND OFFSET: 20.93 L
/-/-388
'N'
)C
-387 GUTTER +16.09
%
STA: 10
?,86 gm OFFSET: 23.00 L
MATCH N
EXIST -maim, Nzm wo
m
-345 5 0 2.5 5 STA: 10+16.09
OFFSET: 18.00 L
V
MATCH T`384 GRAPHIC SCALE
3
N � 1V -71 73 NOTE:
IN FEET
67
k..;U STATIONING REFERS TO
�?`\ wLm.*0`)ET AIL "C"
7 70�:,!� , I/ I I I 1 1 x
/Vh 74-��/J �.372 1 inch 5 ft. SCALE: 1"=5'
11+ 53 A"= 'b�
C) 5ti7 \
9
10+ 2.7 B (0
N S \II I ( � . I / /
C�\
10_�00
\11+00
OD
hr 12+oo cA 13.86'
MATCH 11p 1, - . W­ .7:1
13 00--, �0
�0.
EXISTL 1�0 STA: 12+11.36
�b "B" I 5- BA IN til
OFFSET: 31.22 L
(0-,
386.45 14e�' V )I
4S EXISTING CURB AND
382.85
(/)J, GUTTER
y
4.)
' Zjb -V 6
u
t 0
N�
-<��b VV� V-) 11 6, 0 IN 3731---
< 38j.5.7, Ilk 1, 11-11,P1 ---------
LdO.
yl OR 24" CURB AND
INS
GUTTER
_j
/Z
C39
_ 4
s 380- - --------- 7 6" THICK POLYPROPYLENE
<
g STA: I 14-9/A22 FIBER REINFORCED CONCRETE
OFFSET: 23.37
J L.Li APRON WITH #5 REBAR 0
Ljj
;3 Z-- o.c. EACH WAY
f I V
MATCH
EXIST
LIMITS OF \a" STA: 12+17.74
�<p "I I 1 i\\1III 5 0 OFFSET: 19.89 L
-
DISTURBED AREA DISTU
P`
00%, So:. \v
SEE DETAIL 04 sx, STA: 11+95.87 0
(A u'l vA I L4�,g C,4"T (A
OFFSET: 15.50 L
m VP
0> 0,
THIS SHEET 11 �g� "!
L,El 0 (D
I <
b 4-�A
F-
461
C)
t
CONSTRUCTION
P1 Ljj JOINT
NEW DUMPSTER P I, / 0❑ l I 1 1
/ ,V, ry C)
CV) SEE DETAIL THIS SHEET 3.89
\j
7 1t. i I M �5�0 y
Q)* 'IL -3";v` 4 5^� ,�� O `� / ,
Z\j 10,
tK' E�3 %,, ­7&-­ � I
­ _N0�,"ILL
10+00.00 "A"= 11 1 D_ 1APON, _-N
it , f :V A
10+33.14 t "C" mi ir
++
'373.72,
NV 7 10 S) STA: 12+00.87
0
OFFSET: 10.50 L
I-r vvi ON V AN\
IT iz� p A , - -1 - ­`111\11'C>" �b i
7- /
4XNIL t�' i 'A *
A 1 12+00
ik
.1 1tK9 ------)I-
14+ /2T
7_7,J +00
5A 6FFE
ONE I
6g
ST
ANH LE 13�71�9 "C"7
A 12+00
19 INIS
PRI 11 _,y, \p 14t: z
7 X
-06-
N r4 I I a ON 1 .1
4D, 0(t I 'I,I 1 1 N
1K
M
0
MATCH
EXIST ro* •ZP Q)To
�%,I r-I
ti
Z
D ......... hr UU A
rri lt�
rmw&2 OR A IP%hw% A
uUmIrzi
> 10P Effm% 1p%Avnw& rmw& ET I L
IV/Al SCALE: 1"=5'
LIMITS OF
6:1
-co_ -DISTURBED 0
AREA
Ilk
x
24" CONCRETE CURB AND
lilt GUTTER
J
�7 6" THICK POLYPROPYLENE
z FIBER REINFORCED CONCRETE -7
1­1 MEN st ,Zk/_
_-F
E 4
SMIT NOTES:
"b 4
r 4-
8...........
E 373- --
•
_374-- J
-XL / i ____ _9 14-- 1. ALL MANHOLES, VALVE BOXES AND
7
380-, GRADE SWALE TO DRAIN ---375-
OTHER AT GRADE UTILITY ACCESS
N STRUCTURES SHALL BE ADJUSTED TO #5 REBAR AT 12" O.C. E.W.
377
FINAL FINISHED GRADE OR TOP OF
ASPHALT. SEC77ON A T DUMMER PAD
31',4 39
NO SCALE
y
% CHA THAM COUNTY LAW ENFORCEMENT CENTER
CA PROGRESS y 385 ESS DRAWING DO NOT USE FOR CONSTRUCTION
PARKING LOT MODIFICA PONS AND EXPANSION
Engineers
GRAPHIC SCALE
30 0 15 30 Planners
16- GRADING PLAN
Surveyors
Pliver6
20744 Associates,Inc. Lic. No. F-0334
Since 1918 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
00 IN FEET 00 0 107 East Second Street 6131 Falls of Neuse Road,Suite 300
Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone]
1 inch 30 ft. GINEAx
H. SCALE V. SCALE PROJECT NO. SHEET
ibL SNW 1 30' NA 2008107
7L7
C300
SURVEY AFT PN DESIGN DB CHECK DS
E

RIM 392.76 El
� O
DRAINAGEpC ABLE
gyp C
RIM 3- 93.39 } EXISTING C� RE ABLE
?``, �Oo s { 1 (EXISTING) El (EXISTING)INLETFES
DROP OEz DROP INLET E3 DROP INLET
s - - - _ _ _
- - - - 1 EXISTING
-----�/ TO REMAIN
e- - - - - - - - - - � { ) (TO REMAIN) (10 REMAIN) (TO(EXISTING)
IN)
- ' s / __ J- _t- - - - -C _ _ - - - 10 INV 366.50 RIM INSIDE FENCE
N 717217.6084 f - U S. '.� �--�,' !§ - - - - - - - 8" NW 369.42 12" E7370.98 AREA
E 1945594.3324 - '---- t�I��JH YVA� �� gx - - - W 36 «
N 71721 .78 - - _ " 8.36
� � -� � 12 (SEE NOTE 1)
10 < 2 41 -{ __._.7 0 R I G I T-0 F=WA--�- - - _ '} / °' �1 ` .. \ IM .. „ z4 s 368.16
E 1945696.8769 l y) -
r / - `_ � r /
�70.26 E4 DROP INLET E5 CURB INLET 6 CURB INLET
(EXISTING) O(EXISTING) O TING)(EXIS:��,:K; .. - --"� ,� } e (TO REMAIN) TO BE MODIFIED)- - - - - j.• f`° r / _----- E7 (EXISTING)INLETCURB
_ - - _ �' - �' � j 1 3 f LIMITS OF OU;TFALL STRUCTURE '' %/ � �1 -}�-�- _ r ( (TO BE DEMOLSHED) (TO BE DEMOLISHED)
- RIM W 371. RIM 379.13 RIM 379.28 RIM 381.12
DISTURBED AREA ($EE SHEET C401 r ` � ---- -c-'---- - !� 1 15 SW 375.51 8 SW
FOR DETAILS) "" / , 15„ W 371.78 8�. N
, - -- - - 18 E 371.74 15" E 374.05 15" NE 3375.93 378.84
"1✓ """`- "'s sb: 8" N 371.94 * (SEE NOTE 1) E
.,, -
_ CURB INLET
'?, ' f ;� f=� "I? ,'4` ,I, { ' f�,� ,.;'�,� :�� �" � M:._---..�,kN - •_ - - - CURB INLET E9 CURB INLET PIPE END
EXISTING )
r �� � .. - -- - - - � v { ) (EXISTING) 10 (EXISTING) EB (EXISTING)
'i
r -
N 71 145.110a - -�- - - _ - (TO REMAIN) (TO REMAIN)
' ( € f ? fF �,. c _ - - (TO REMAIN) (TO REMAIN
I� E 1945697.5 0 q f EtF ,� ry` _- - - - RIM 370.38 RIM 377.99 RIM 393.18 INV 367.78 NORTH
\. y / " 24" W 364.43 24 W 371.89 24" W 386.93 INV 367.66
24 E 386.60
F ;, r i I f _... " (CENTER
O �It � �' fil
24 E 363.88 24" E 371.50 INV 367.86(SOUTH)
' BOX�
LIMITS OF. < 1f, ',` 3 3 4 1 i EC FES ED FES EE FES FES
N 71711, 2696 r` c+i ? 1.-
\ , ; '; O(EXISTING) O(EXISTING) O(EXISTING) EF EXISTING
t DISTURBED AREA I f rf \, ( ) (TO REMAIN )E 1945683.3439�° ; � £ � r ,` rs f&• � ��, ��a fi ���`f� ;� �a t � ,,N
TO REMAIN (EXISTING)
f t t
I / �� �a v ' INV 373.85 INV 374.53) INV O 376.77(NORTH) INV 3744 REMAIN)
' . f» I i If r 1�z e
I
.'( { #� ; INV 377.27(SOUTH)
I I i I BIORETENTION BASIN I
! (SEE SHEET C401) El PIPE END PIPE END
\ f ':
DROP INLET
I f O{ ) EO EXISTING EH
v is { ) EXISTING
EXISTING
TO REMAIN ( )
A \ w w w ' i RIM 383.38) TO REMAIN
I, \ w ' 1 I { ) (TO REMAIN)
N 717083.5465 „ NO SURVEY DATA NO SURVEY DATA
E 1945656.5607 24 NE 378.68 PROVIDED PROVIDED
N 717054.9683 r'" 80 L.F. 15"RCP ` £ k t i
E 1945643.9725 � i ' ' ppp � t } � _ � 38 L.F. 18'RCP ® 0.99%
} a
1 f�,�y 1 t� ' 3 V VJ \ � - � � ti. �<. � i �
r x 387� 99 L.F. 15"RCP 0 1.71% t ; % � 1 50' BUFFER
t f ; . \u: 77 L.F. 18"RCP CAD 5.17% �'i ``, 1 � � �� <a t 11 30' � � � � � \ �M'�?3�' � �
� �
386 ' ZS,. .a -' E, is, �, �� �'7.'. 20F I,t I t• {�,[ S f Y;jS `eY \ ( \
NOTES.
ITE
\ 77 L.F. 18 RCP ® 5.35% ONEI 2 ONE 1 �� I f i \ t' 1 „
f 1. MODIFICA11ONS TO EXISTING STRUCTURE E5 ;
6 5 3 381 3$© ._ ` ` '' 4: � REMOVE EXISTING SOUTHWESTERLY 15" RCP AND
INV 386 5fi- »: 36 t
378 377 76� 1 6 6 I I ,I # i t F` \� CONNECT NEW 15 RCP FROM STRUCTURE "9" AT
3 375 36 $ �3 1` i i -� \ EXISTING INVERT (VERIFY INVERT - 375.51).
=012881'1
22 L.F. 15"RCP ® 1.37% `� � rill
ADJUST TOP TO HOOD ELEVAl10N = 379.60.
N 71t` I \ 0 37 371 r°
E 1945642.1488 / I;,N a o 0 0 0 374 3 372
�} .
E t
4 f
(3 �
- 1-10 PERVIOUS PAVEMENT 7 E ` ABLE
AND CLEAN 8S ��p W CD 22 L.F. 12"RCP ® 0.81% _ , I
INV 3i34.74 �. I - - w w w w \ \ r{ I � 1 -TYPE f- OUTS (SEE DETAIL W N w w -� FES „ „
" ) r - J w 1 O O DROP INLET C" O DROP INLET TYPE C O DROP INLET TYPE C
"C.iJ �" SHEET C200 `� ao w •£ I N 717050J814
0, 4 - w 'A 1 f N 717037.6737 N 717041.0814 N 717044.4890
Q -, E 1946023.8961 LtJ - _ w N ,, �� �� '�? � I � ' E 1945988.1451 E 1945910.8116 E 1945833.4780
. � ', INV = 368.00 (1) GRATE = 373.64 GRATE = 378.00 GRATE = 382.00
INV 386.14 N 716997.7125 l INV. E = 368.36 (A) INV. E = 372.50 1
ry1 � _
{� �y� � t� � � I �� E 1945986.3843 - I � I � � { )
INV. E = 376.50 (2)
yr" S
l I , INV. W = 368.36 (2) INV. W = 372.50 (3) INV. W = 376.75 (4)
INV 383.x Q DROP INLET "TYPE C" 5 CURB INLET "TYPE D" CURB INLET "TYPE D" FES
E 1945734.34547048. O N 717053.2615 ©N 717053.8774 ©N 717042.1474
E 1945654.2349 E 1945633.3995 E 1946060.4800
III a I I
Q O O " • I i I GRATE = 383.70 HOOD = 383.30 HOOD = 383.30f INV = 368.00 7
z _ I I � F 375 374 1 bI ' ' { ) ( )
Lil I 5 �_ 373 372 , i INV. E = 378.45 3 INV. E 382.28 (4) INV. E = 382.58 (5)
p r INV. W = 378.45 (5) INV. W - 382.28 (6)
w
INV 3IJ
s
OCURB INLET TYPE D O DROP INLET "TYPE C" 9 CURB INLET "TYPE D" 10 CURB INLET "TYPE D"
N 717023.3347 $
(DOGHOUSE) O N 716853.8002 O N 716854.6336
E 1946071.9591
~- ,- �.., I z I \ _, wA `� f I N 716780.2414 E 1945627.6713 E 1945613.6689
s sx 380 -- _-. -.. % ��M� # I t
1 1 HOOD = 371.70 E 1945853.8377 H000 = 380.00 HOOD = 382.00
Mao N"' = I I ! ' INV. N = 368.20 (B) (GRATE = 371.10 INV. E = 375.77 E5) INV. E = 376.16 9
I _
1 j a w,� _=:m�� .:.!�- �•-385�" -�n� c+�� '�'� I � I I� I I � �
INV. W = 375.77 (10)
�
(VERIFY INVERT)
LIMITS OF
DISTURBED AREA `' 1 f t i ' " l. Ll
'I a l 3 �� � I ' 0
, i
OD Iola
00
m � � � � z
{� I _ =
F1
13 L.F. 15"RCP ® 2.99% (.�.!g 25 L.F. 15"RCP @ 1.02% 3b;
37
€ 37
EV yq,;,u.:.'tia, ,d a�EM, ;»..q_,_.G./,_.., ^' l�
N 716828.0478 ,E ro .f f �.f, I v,
E 1945604.2372 t ' \
E7 Millis.
a37
sill w,
-
INV 379.46 j I 1 I 1 1
z
PORTION OF EXISTING STORM SYSTEM �_
INV 379 44 _-__ - - -
I I TO DEMOLISHED SEE SHEET C100 - _ _M `Z
7168 t # f � � 50 6FFEI7 09.6293
N 716826.4151 1945977.5772 �30'
E 1945637.332� iONE
1
�#
�
'
# 1 I I 'I ��u � ® © a»,..,__,<..,�� ���a a-� '� .✓'' Itlr.rcr»s=��x».eu - v�:.wua�s ::•:a-,znm .c es-
£ � J
j -
N ,
T o
�w ....; ,• ,rras£. .. ,.. �..,, .� � �....,.c..;rFx�rs_„... r ar...:.°:._,,,,„,,-� - -� / � j tl�
_ o
N
1 I Z
COt\ ,�Y��
it
� ,,, N�716764.4728 '
? t E I r �� - N _ t> M Ymm� _ ._..._. !�✓ LIMITS OF o m
wm . €� E 1946181.1014
I i I � �.� �,� o DISTURBED AREA o7 N 716742.6102 4 I
N E 1946190.3967 O
o /mm IN"� 66 5 � ; �} y�'e �* E � r_1 \ s 11 \
_...,, ;.--. - ter- l
t
EF�� N 716741.4
E t - - --• _ ,, M E 94 18
_. w• _
vi
0
00
I'WE !"
�4
"
I 37 ..._ .r,. �b 71671 .695Q _..., ._,,.... .µ._.. M N '6,
"� _ E 1945690 8825 �x.M _ --_-._.e-_. 3�y75- --- E � 5886.
v / ; ,
tiGRAPHIC SCALE
- _ -- 't mod?-....•. h _.,.,, _. � w I \ 30
0 15 30
�V
,
i 1;,58 4 ( IN FEET )
1 inch = 30 ft.
� 4
v J ("
w w 78 j%11111111'� '
N CA PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHA THAM COUNTY LAW ENFORCEMENT CENTER
o �; • si
PARKING LOT MODIFICATIONS AND EXPANSION
V ` i o e r
w _ ®® Engineers
0 SECPlanners O/i/ /ft GEPLAN
L Q n l
tAg1k Surveyors I�/`'1 /''1 V 1! ^/V
® 74'� = &Associates,Inc. Lic. No. F-0334
® Since1918 CENTER TOWNSHIP, CHATHAM COUNTY NORTH CAROLINA
it % 00
� ®®®®`�GI�•�®®® ®`� 107 East Second Street 6131 Fails of Neuse Road,Suite 300 �
s �"5 �`,, SURVEY GreenvIIle,NC XXX 27858 DRAFT 52-4135 XXX DESIGNe1gh,NC XXX 27609 [phone] H. SCALE V. SCALE PROJECT NO. SHEET
tnnl CHECK XXX A 2008107 C400
s

X
376 ,,,,__,_.__.,,",,.«_._ « _ _ 1 _ 376
I I —
t
t=
4 SQ. CONCRETE RISER WITH TRASH RACK __.
\ I (BEYOND). RISER STRUCTURE SHALL BE
€ _
\ j CONSTRUCTED IN ACCORDANCE WITH NCDOT 8' WIDE EMERGENCY SPILLWAY — — _ _ _ ._ � m
,
_.,,_.STANDARD.«_PRI=CASE-DRAINAG •STE2UGTl1RES _._ __«_« -- 374
\\ EXISTING GROUND ; TRASH RACK SHALL BE PEA{* STYLE AS SHOWN. ,°' (ELEV. 370.0) WITH 14' WIDE x
\ PROVIDE PRE-ENGINEERED STRUCTURAL PLASTIC
s UV RESISTANT PER ASTM D2565-99 ACF t 1 30'
LONG x 12ff THICK CLASS
"B" RIP—RAP SPILLWAY
FINISHED GRADE
t
i PROTECTION ON FILTER FABRIC w„ a 14' WIDE x 45' LONG PYRAMAT
"«
372 -«_. _. _« __.« « « .« w....«.« _.__ ._. _ __«« -.-.--- 372 UNDERDRAIN CLE r OUT (TYP.) ' _ (OR EQUAL) SPILLWAY LINING
E z
371.0 TOP OF BIORETENTION
\ 3 z, CONTAINMENT BERM i ��
� �u��=Eck "'-., a / �f.
.' 370.0 TOP Olt EMERGENCY SPILLWAY _,_.••
370 , ,, _. «.« _., _,._ _ _ _ ._,_ ___ _ __ s 370 _ a
tJ �
5l�, w
3:1 �` BMP MERGENCY SPILLWAY RIPRAP 1 '
I i 0 AY i n«
369.0 369.0 \ FUTURE F REB
€ BMP MERGENCY SPILLWAY �
71 ,�
2-4" MULCH r 3r
368.0 I E \ T PORARY 12 DIA. EROSION CONTROL # l
z #
368 3q ,
�. 0 IFICE TO BE FILLED AND SEALED DURING
CONVERSION FROM SKIMMER BASIN TO
• � � u,•�, �.
I •f r�, 3s
I � �
t 3,, s r
\ BI RETENTION BASIN; INV. 367.002 FILL SOIL MEDIA a
:1
..........
t Ns• i < xi �
t
3 3 s,
i
: :SPECS SHEET C402
CUTOFF TRENCH FOR FILL SECTIONS IN r t t •-. •. � ,, �,,<s � \.,. . =
,
�
" I f 7 } 9E•` - �' t �' .h s' 1.„c�,+rx 'i,
,
r t
E STING r h GROUND. MIN. 2 DEEP 3.€ 4 WASHED SAND L
l+
3 t X rd
I
»l, H
ui.•°
366 • ,.«,,.,,,,�-'366.0
f "- 366 r f
365.7 t f >rt 4 SQ. CONCRETE RISER
�• i :a..,.L. s .aza .Fp -� ! e,.,. „>u--... `\ .'':kz� F^a ,a r>a.., \iY„
FILTER FABRIC
WITH TRAE, f °\ Y
u / "*�� � r c t u..�r � I E� � , �� ��� a ��g; � TRASH RACK (SEE
365.01 M \ FUTURE RIP—RAP �f f t
, ..,, .. 8" #57 STONE _"_.._..____.__.____.«.«—«_w_,_a«.._«_ m",,,.�" �_�__._�-____- ,..,_.�._�. ,.�..._
'' '' SECTION A—A, THIS SHEET)
Imo- PYRAMAT (OR EQUAL) SPILLWAY LINING I CONTAINMENT BERM y 1
4" SLOTTED HDPE UNDERDR�IIN
364 � I.�,.�_�..�...«�.�_.«_,___..,_,_ .«««_.,�«««.«�_�_.�_-.«««_«.� � .�«-�_,,_ ~w~~- 364
Ah
I 363.0 i \VJ� 54 L.F. 8" HDPE @ 0.93%
•t' 62.5
..�
_ "_ _ w_ 1
362 " __." _ « " _ ___. _ _�_«__ 362 > )ww�.,• ' i
za
«_"....«�..,._«__.�,,�, ,«�_«._ ,._.___,�,«.««««_«.".�.___« i 12 THICK CONC. _�
CONC. FILL I ANTI-SEEP COLLARI
(ANTI-FLOATATION)
HDPE IAsk
€ NOTE: (BEYOND) 1
E
360
1
E ti 3
W m •
V
I 1 SOIC MEDiA SI�A�L NBT' BE PLACED UN1'IL««ALI -AREAS D RAINING
TO BIORETENTION BASIN HAVE BEEN STABILIZED AND WHEN 1 y UNDERDRAIN, SLOPE
„ �-- AUTH@RIZ-ED�-BY FIE-NCSU'-WATER-40ALI�Y GI OUP APED----- --------�--- �""- � N TO DRAIN (TYP.) _____-5�' BUFFER 30'
ENGINEER. l W �___ f 1 ZONE 1
20
358 n _ W _.. _. . i 358 \ ZO E 12 �.
CLEAN ALA ACBMU�A'BD SBC71MEN1 FROM BASIN PRIOR TO TNT« � ;. Am
PLACEMENT OF FILL MEDIA. SEE SHEET C402 FOR SOIL MEDIA
12" SANITARY SEWER I t 0
_,�__,��.RE-Q�JIRE�I�ENTS:,_�_._,�,.. ,��.�."���.�,� � --�.�..__. _.__"._.".__...�_�. _...._�.�.� « -_�." � � � �
356 q_..... 356 1 1 1
i
3' VIDE x 50' LONG CLASS "A"
j
i ""--_n --------- . -°�•• ----.--. .-„--•- a- ---�- ..—..__ � RIP-CRAP CONTAINMENT BERM ON
AM
EC
y FILT�',R FABRIC, 1 ,, HIGH"-T I(m)N A A (TOP ELEV. = 369y.0) 11
SCALE: HORIZ - 1"=20', VERT. = 1"=2' { 1vC_ i
gol
FOREBAY, 2x DEEP f <
1
(BOTTOM ELF = 366.0 c
CRAP �
F 4 WIDE x 5 LONG x
GRAPHIC SCALE GRAPHIC SCALE �
20 10 20 2 0 , 2 i
{12 THICK, CLASS Af
,,RIP—RAP DISS'IPATOR ON I z
( IN FEET ) ( IN FEET ) 2, FILTER FABRIC
f
1 inch = 2 ft. \ t
1 inch = 20 ft. � ' 6
C 36
3 7 1-1 69— 3' WIDE x 4'
B
3 �� �` LONG x 12"
0 o-
3 1 THICK, CLASS "A"
3 3 RIP—RAP j t
74 �� DISSIPATOR ON yt
FILTER FABRIC `#
I
}
w
F�7 #
Em 3 lu"0 mmm bE T E IN'T I 0"N' BASM
SCALE: 1" = 10'
GRAPHIC SCALE
10 0 5 10
t I
( IN FEET )
0
1 inch = 10 ft.
N
d'
N
a
O1
3
v
0
v
c
m
c
m
a
c
0
c
v
v
0
m
0
0 Sl's PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
PARKING LOT MODIFICATIONS TIONS AND EXPANSION
°
®®®® Sol PROGRESS
• ®�: ..- Engineers
1 BIORETENTION BASIN
lt� Planners
® 20744 Ulf = PliversSurveyors PLAN AND SECTION
Associates,Inc. Lic. No. F-0334
co % •® ® : Since 1918
107 East Second Street 6131 Falls of Neuse Road,Suite 300 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT NO. SHEET
sy��sl�jje!°�°►`` SURVEY DRAFT DAB DESIGN DAB CHECK DLS AS SHOWN AS SHOWN 2008107 C401

WoM El
O -Erosioncontrol Temporary Seeding Measures:
1. THE GROUND SURFACE SHALL BE CLEARED OF STUMPS, STONES,
ROOTS, CABLES,_ WIRE, GRADE STAKES, AND OTHER MATERIALS
THAT MIGHT HINDER PROPER GRADING, TILLAGE, SEEDING OR
�,s o �, -- - - - - - _ - -' SUBSEQUENT MAINTENANCE OPERATIONS. GRADES ON THE AREA TO
`x'' O _ _ __ _
g BE SEEDED SHALL BE MAINTAINED IN A TRUE AND EVEN CONDITION.
W`` MAINTENANCE SHALL INCLUDE ANY NECESSARY REPAIRS TO
PREVIOUSLY GRADED AREAS ALL GRADED AREAS SHALL BE
U` S HI�HW �. �
N(I
THOROUGHLY TILLED TO A DEPTH OF A T LEAST FOUR (4) INCHES
° �� ��� �'4 �� �� ,w / ~ � BY PLOWING, DISKING, HARROWING, OR OTHER APPROVED METHODS
�i s t
--�7 O R T-O�" -- -� - - `\ / ; UNTIL THE CONDITION OF THE SOIL IS ACCEPTABLE. ON SITES
/ WHERE SOIL CONDITIONS ARE SUCH THAT HIGH CLAY CONTENT AND
r EXCESSIVE COMPACTION CAUSE DIFFICULTY IN GETTING CLODS AND
—
„fy ----..,, ��'''..3` LUMPS EFFECT
_ / 3'.'� SKIMMER / l --- - EFFECTIVELY PULVERIZED, THE CONTRACTOR SHALL-------------
USE THE
- - / /(SEE DETAIL THIS � LIMITS -�---- _ ROTARY TILLAGE MACHINERY UNTIL THE MIXING OF THE SOIL /S
- - �- . ------ -----____,. `------_'_._f � OUTLET,,.CONTROL STIR-CTURE / .`
- - - - - � � - - -: --L—,4 (SEE-SHEET C401) / MITS OF - -- �.
1 - - - / / SHEET) DISTURBED AREA ----- - 4
ACCEPTABLE AND NO CLODS OR CLUMPS REMAIN LARGER THAN 1
- \\\ —t �-- -- \\ 1/2 INCHES /N DIAMETER. A FIRM AND COMPACT SEED BED IS
REQUIRED AND AFTER BEING GRADED, THE SEED BED SHALL BE
"Al �� --�� f �r r i '� --------�,_-_-�� - - � - z �t;�: � �-� =� JWW � - "�" _~. ~ �� °`�� `� ``, LIGHTLY COMPACTED WITH A LAND ROLLER, SUCH AS A
CUL TIPACKER, BEFORE AND AFTER SEEDING. LIMESTONE SHALL
� ...
` � ,1 I '� ( '� ! z�� "x,`� �� raj °-'` ,✓ ��\�„� y�� f —® "` _" — — ._ .— .— \ � ,. � t BE
t . �- �, H ., ����}��� m � N_ _.�'�.v . _ - - - MESTONE CONTAINING NOT LESS
DOLOMITICDOLOMI TIC AGRICULTURE GROUND
� � lam - - - _ THAN 10 PERCENT MAGNESIUM OXIDE. LIME SHALL BE UNIFORMLY
_ . APPL/ED A T THE RATE OF 2 TONS PER ACRE. FERTILIZER SHALL
t „ 1
BE UNIFORMLY APPLIED AT A RATE OF 500 POUNDS PER ACRE OF
- -20 ANALYSIS. THE FERTILIZER SHALL BE INCORPORATED
10 20
INTO THE UPPER THREE OR FOUR INCHES OF PREPARED SEED BED
JUST PRIOR TO THE LAST TILLAGE OPERATION, BUT IN NO CASE
LIMITS OF SHALL IT BE APPLIED MORE THAN THREE DAYS PRIOR TO
DISTURBED AREA SEEDING.
I ( \ I } t t I FERTILIZER SHALL BE USED IMMED/A TEL Y AFTER DELIVERY OR
IN A MANNER THAT WILL NOT PERMIT IT TO HARDEN OR
I I ( SF € p \ � f '` f DESTROY ITS EFFECTIVENESS.
' O . BASIN #1 c 1 1,. I 1
(`�€ S SKIMME BASI €�`;` ' 1 1 \_, = 2. WHEN HYDROSEEDING EQUIPMENT IS USED FOR SEEDING, FERTILIZER
t I O . ,
TEMORARY { ( > P I /
1 \ y t BOTT04 = 36 0 I I �� , , � SHALL BE APPLIED SIMULTANEOUSLY WI TH SEED USING THE ABOVE
,. STOCKPf E v� I , I
O h ( ? TEMPORARY 1 ��� I \ , RATES OF APPLICATION. SEED SHALL BE CERTIFIED SEED OR
, \ \ AREA � w w wiz � .a� .1 \`
0 00 € CONSTRUCTION �� SF I a,£ ( IF z ;� t 1\ EQUIVALENT BASED ON NORTH CAROLINA SEED IMPROVEMENT
0 0 �:I ENTRANCE _ s \ w .o= 1
1 4 b ASSOCIATION REQUIREMENTS FOR CERTIFICATION. ALL SEED SHALL
f2
i Iy w w w 50 BUFFE_ , # ,'
o 0 0 I ! , t ' \ �, I r ►w ? a i 30' II` ; i \ _ l BE FURNISHED /N SEALED STANDARD CONTAINERS. SEED WHICH
O of �� ww I 2 . I ZO E 1 f; ���
"� w ON 2 1 I` s _ OR OTHERWISE DAMAGED PRIOR TO
i € '`'� \ � t °i., HAS BECOME WET, MOLDY,
TEMPORARY GAFF try Qy >
' <//o
��� � LES cp ���5 � No,�► ' �. Ij �'�;� � � � �%, 1 SEEDING WILL NOT BE ACCEPTABLE.
TYP ) `a 1 ` ! # *s,„ t "A
I ; I � J. SEEDING SHALL BE ACCOMPLISHED WITH HAND PLANTERS
f F
. t ,
1
O t3 \ ,�,�' 1 POWER-DRAWN PLANTERS HAND PACKERS, OR HYDROSEED/NG
1 r ,I •O O € -:eT _;y, eau ?'s„ v IN .. �3 ' �..I *. -s \ ` _ i \ , ' i ..ta '3 CS' � ° %� \ f
�2 ` � Qtr. '
EQUIPMENT A TH
E F OWING RATES.
H OLL 0
® /
"8 a ds'`t ds F i I 1 t I
r " ° 3 6 ; , 1 I Seed/Sod Bed Preparation:
I
'� i 37b� 37 Lime - 2 tons per acre
Aff'
3
Fertilizer (10-20-20) - 500 pounds per acre
ti
., ..�
1
k, Temporary Seeding Mixture:
I
i
8 e 1 1 -
� 6 '`' ` �`; ', � � � `�� f �� �,�� f (January 1 March 31)
r ®
a ,
Common Bermuda grass (unhulled) 20 pounds per acre
LAJ „
CD`W '` v _ `` ` 3. w I N / ' (April 1 - July 31)
TEMPORARY fI -
w • ' I DIVERSION . I I tIi i Common bermudagrass (hulled 15 pounds per acre
SWALE 1 Weeping Lovegrass - 5 pounds per acre
p acre
(TYP ) I Centipede - 8 pounds per
z
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Q N ' 375 _ f ' € I I i I I Common Bermuda gross unhulled 15
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Z — I _ II 1 - 120 pounds per acre
' m 373 372
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i �� � � I� I pounds per acre
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DISTURBED AREAOUTLE -_,_ _
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(TYP.) / / , DISTURBED AREA Wo
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I ° INVERT 365.00
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END VIEW
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10
LEGEND N NOTE.
`
~ jf\
3,�•�9->..... _._ _..... M._...,. RI=., LIMITS DISTURBED AREA
m.. - TALL ALL EROSION AND SEDIMENT CONTROL
o � 4I ( � � - TP � TREE PROTECTION FENCE
MEASURES PRIOR TO ANY DEMOLITION ACTIVITY.
DISTURBED AREA — 3.96 ACRES
U =
't sF � SILT FENCE
W CHATHAM COUNTY LAW ENFORCEMENT CENTER
fi M SILTFENCE OUTLET °°°°°iaeii PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION
GRAPHIC SCALE `` ®��F' 0 PARKING LOT MODIFICATIONS AND EXPANSION
> - --► TEMPORARY DIVERSION SWALE 30 0 to 30 ' �, •• ':
I Q ` •- IN Engineers
Ul TEMPORARY CHECK DAM I �� ® �� ver TIN
Surveyors
EROSIONCONTROL PLAN
co oo
( IN FEET ) = 744 = &Associates,Inc. Lic. No. F-0334 CENTER TOWNSHIP, CHA TRAM COUNTY, NORTH CAROLINA
OUTLET PROTECTION 1 inch = 30 ft. since 191s
z ® o •®® ,(°,,G' ®® �` 107 East Second Street 6131 Falls of Neuse Road,Suite 300
•®�•i®•®®•®.•��,�w` Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT N0. SHEET
° /®L
1" = 30' NA 2008107 C500
's04soo �>„e° SURVEY DRAFT PN DESIGN DB CHECK OS
s
v_

Erosion Control Construction Sequence Erosion Control Measures: NOTE. ALL PARTIALLY COMPLETED STORM DRAINS 8' MAX. STANDARD STRENGTH FABRIC WITH WIRE FENCE
1. All work will be done in accordance with NCDENR. SHALL BE PROTECTED AT THE END OF EACH DAY I 6' MAX. EXTRA STRENGTH FABRIC WITHOUT WIRE FENCE
1. OBTAIN PLAN APPROVAL AND OTHER APPLICABLE PERMITS !N ACCORDANCE WITH THESE DETAILS
No land disturbing activity beyond that required
to install the appropriate erosion control measures may UPSTREAM END OF
2. FLAG CLEARING LIMITS INSTALL TREE PROTECTION FENCING WHERE proceed until measures are approved by the State of North Carolina. STORM DRAIN OVERFLOW
SHOWN ON PLANS.
IT
2. Following site clearing, all sediment basins, storm drainage culverts, p 14 GAUGE, 6"x 6" IVELDFD 11RE FA B IC
J. CONTACT OWNER, ENGINEER AND NCDNR TO ARRANGE A and structures shall be installed. Rock inlet Sediment Traps and Pipe Inlet ;',: �a•r; y' 1/3 PIPE j
PRECONSTRUCTION CONFERENCE AT LEAST ONE WEEK PRIOR TO Protection shall be placed around all drainage structures to collect surface DIAMETER :Z N
BEGINNING CONSTRUCT/ON ACTIVITIES OTHER THAN THE INSTALLATION OF runoff and control siltation and release water at a gradual rate. All 110.
TREE PROTECTION FENCING. easements outside the paved areas where storm pipes are installed p p "' '''' �� '':'.' ' 3/4" EXTERIOR
will be graded, seeded and mulched. " '1 j PLYWOOD
4. INSTALL GRAVEL CONSTRUCTION ENTRANCE(S) AND MOBILIZE TO SITE. 77
J. Streets shall have stone base placed on them for BURY BOTTOM 1Tf- �� - /\\\\\\\\v\\\\\\\\ \\\\\\\\�\\�\;�\��\\�\\�\\�\\�\\�\\�\ ,
RAILROAD BALLAST m �*^ i\\i;
stabilization and shoulders shall be seeded to stabilize the 2 RAILROAD
COARSE p p p OF PLYWOOD STEEL POST 1.JJ LB/LINEAR FT.
5. INSTALL TREE PROTECTION FENCING ,> � N
soil. Seed bed preparation shall be conducted according to North ( WITH PROJECTIONS TO FACILITATE
6. INSTALL ALL SILT FENCING AND SILT FENCE OUTLETS. Carolina Department of Transportation Standard Specifications for AGGREGATE) FASTENING FABRIC
Roads and Structures (D.O.T.). The ground surface shall be PLYWOOD INLET PROTECTION
7. INSTALL OUTFALL RISER AND BARREL STRUCTURE AT SKIMMER BASIN #1. cleared of stumps, stones, roots, cables, wire, grade stakes, and p 14 GAUGE, 6"x 6" WELDED WIRE FABRIC
CONSTRUCT SKIMMER BASiN #1 AND INSTALL DEVICES (DIVERSIONS, other materials that might hinder proper grading, tillage, UV RESISTANT ti
BERMS, ETC. TO DiRECT STORMWATER FLOWS TO BASIN IMMEDIATELY seeding or subsequent maintenance operations. Grades on the area STEEL FENCE UPSTREAM END OF pP
THEREAFTER. COMPLETE ONE AREA AT A TiME INCLUDING DIVERSIONS to be seeded shall be maintained in a true and even condition. J p p a O ap POST (TYP.) STORM DRAiN OVERFLOW GEOTEXTILE FABRIC
BEFORE MOVING TO THE NEXT AREA OR BEGiNING GENERAL GRADING Maintenance shall include any necessary repairs to previously ("��
COMPACTED
OPERATIONS. graded areas. All graded areas shall be thoroughly tilled to a o 1/3 PIPE
BACKFILL
depth of at least four (4) inches by plowing, disking, harrowing, Cj ;s .::: ';::".' :': DIAMETER
8. DO NOT BEGIN GENERAL GRADING OPERATIONS UNTIL ALL EROSION or other approved methods until the condition of the soil is
PP HARDWARE
CONTROL DEVICES FOR A GIVEN DRAINAGE BASIN ARE INSTALLED AND acceptable. On sites where soil conditions are such that high 6" �' " "�'`'
P g `L� ..r CLOTH GROUND LINE
FUNCTIONAL. clay content and excessive compaction cause difficulty in getting
clods and lumps effectively pulverized, the Contractor shall use � O O '<'''•''.�'� '''°•"••`'�-•: '°''�`
9. MAINTAIN ALL DEVICES THROUGHOUT THE PROJECT UNTIL DISTURBED the rotary tillage machinery until the mixing of the soil is p p p p p PLACE 12" MINIMUM OF THE
rrr = Z FAB/C ALONG THE BOTTOM AND
AREAS ARE STABILIZED WITH PERMANENT SURFACES (PAVEMENT) OR acceptable and no clods or clumps remain larger than 1 112 inches �riT�t *n�m� ^� �� SIDE OF EXCAVATED TRENCH
VEGETATION IS ESTABLISHED. in diameter. A firm and compact seed bed is required and after
being graded, the seed bed shall be lightly compacted with a land a WASHED STONE FILTER 4" MIN.
10. PROVIDE ADDITIONAL TEMPORARY SEDIMENT CONTROL DEVICES AS roller, such as a cultipacker, before and after seeding. p p p ACROSS PIPE INLET
REQUIRED. Limestone shall be dolomitic agriculture ground limestone SIT
containing not less than 10 percent magnesium oxide. Lime shall FENCE 11. CLEAN SEDIMENT TRAPS AND BASINS WHEN ONE-HALF FULL. be uniformly applied at the rate of 2 tons per acre. Fertilizer STONE FILTER INLET PROTECTION
(NOT TO SCALE)
shall be uniformly applied at a rate of 500 pounds per acre of 8' OUTLET
72. SEED AND MULCH DENUDED AREAS WITHIN 15 WORKING DAYS OR 30 10-20-20 analysis. The fertilizer shall be incorporated into the T/ / I UNLESS 0 TER WISE
CALENDAR DAYS, WHICHEVER PERIOD IS SHORTER, AFTER FIN/SHED • upper three or four inches of prepared seed bed Just prior to the NOTED
SlL T FENCE OUTLET.
GRADES ARE ESTABLISHED. SEED AND MULCH EXPOSED SLOPES WITHIN 15 last tillage operation, but in no case shall it be applied more (NOT TO SCALE) (NOT TO SCALE)
WORKING DAYS OR 21 CALENDAR DAYS, WHICHEVER PERIOD IS SHORTER, than three days prior to seeding. Fertilizer shall be used CONSTRUCTION SPECIFICATIONS
AFTER FINISHED GRADES ARE ESTABLISHED. immediately after delivery or stored in a manner that will not 2' MAX.,
permit it to harden or destroy its effectiveness. � CLOTH HARDWARE TYPICAL 1. INSTALL OUTLET IN THE LOW POINTS OF
13. DURING THE /NSTALLA TION OF UNDERGROUND UTILITIES ONLY EXCA VA TE THE SEDIMENT FENCE.
AS MUCH AS WILL BE DONE IN THE SAME DAY. AT THE END OF EACH When hydroseeding equipment is used for seeding, fertilizer ii�� ///ij GRATE SILT FENCE,
WORK DAY PROVIDE CHECK DAMS ON DOWNSLOPE SIDE AND shall be applied simultaneous/ with seed, usingthe above rates i � SEE DETAIL END SILT 2• PLACE A LAYER OF FILTER FABRIC ON THE
SEED/MULCH. of application. Seed shall be certifiedseed or equivalent based WIRE SCREEN iii����Jrij///// CURB WIRE SCREEN CONCRETE BLOCK GROUND BENEATH THE OUTLET- PLACE 6
FENCE
on North Carolina Seed Improvement Association requirements for
-/j INLET INCHES OF THE UPPER EDGE IN THE TRENCH.
14. MAINTAIN SOIL EROSION AND SEDIMENTATION CONTROL MEASURES UNTIL certification. All seed shall be furnished in sealed standard J. ALONG THE OUTLET, PLACE ADD177ONAL
PERMANENT GROUND COVER IS ESTABLISHED. containers. Seed which has become wet, moldy, or otherwise CONCRETE STEEL POSTS FOR STRENGTH. THE POSTS
MUST BE A MAXIMUM OF 2 FEET APART AND
damaged prior to seeding will not be acceptable. Seeding shall BLOCK
IN SOLID GROUND A MINIMUM OF 18
15. CALL NCDNR FOR ON-SITE MEETING TO OBTAIN APPROVAL FOR REMOVAL be accomplished with hand planters, power-drawn planters, hand �O DRIVEN
INCHES.
OF TEMPORARY EROSION CONTROL MEASURES. STABILIZE THESE AREAS packers, or hydroseeding equipment at the following rates: METAL POSTS, TYPICAL
AND INSTALL APPLICABLE PERMANENT MEASURES (RIP RAP OUTLET 4. PLACE HARDWARE CLOTH (WELDED
PROTECTION AND/OR LEVEL SPREADERS). Seed Bed Preparation (Offsite drainage easements and shoulders //�j/ GALVAN/ZED SCREEN WITH SQUARE X --
on public streets): /////j
INCH HOLES) ON THE UPHILL SIDE OF THE
POSTS TO HOLD THE WASHED STONE IN
Lime - 2 tons per acre GRAVEL FILTER ��/i //// PLACE.
Fertilizer (10-20-20) - 500 pounds per acre /�� ' ; GRAVEL FILTER UPHILL DOWNHILL 5. BURY THE BOTTOM OF THE HARDWARECLOTH, THE UPPER EDGE OF THE FILTER
FABRIC BELOW THE OU77 ET AND THE WiRE
Seeding Mixture: FENCE IN 7HE TRENCH AND COMPACT THE
Erosion Control Maintenance Plan FILL.
(January 1 - March 31) CURB & GU77ER METAL POST
ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED Common Bermuda gross (unhulled) - 20 pounds per acre 6. PLACE A FILTER OF J57 WASHED STONE
WEEKLY AND AFTER EACH RUNOFF PRODUCING RAINFALL. STRUCTURES ON THE UPHILL SiDE OF THE OUTLET. PILE
THAT SHALL BE INSPECTED INCLUDE: WIRE SCREEN CONCRETE BLOCK HARDWARE CLOTH THE STONE TO THE TOP OF THE HARDWARE
(April 1 - July 31) WIRE SCREEN CLOTH AND OVER 7NE JOINT BETWEEN THE
1. TEMPORARY SEDIMENT BASIN: RUNOFF WATER GRAVEL FILTER OU7LET AND THE SILT FENCE.
Common bermuda ross hulled - 15 pounds per acre WiTH SEDIMENT RUNOFF WATER
SEDIMENT SHALL BE REMOVED FROM THE BASIN AND THE BASIN SHALL BE 9 ( P P CONCRETE BLOCKS WITH SEDIMENT Q� MAINTENANCE
RESTORED TO ITS ORIGINAL DIMENSIONS WHEN 1.0 FOOT OF SEDIMENT HAS Weeping Lovegross - 5 pounds per acre \ 177
ACCUMULATED. THE SEDIMENT SHALL BE DISPOSED OF AND THE Centipede - 8 pounds per acre /////\\i '�' - 1. INSPECT SILT FENCE OUTLETS AFTER EACH
RAINFALL. IF EVIDENCE OF UNDERMINING OF
CON TAMINA TED PART OF THE GRAVEL SHALL BE REPLACED. THE /\\j\\jam #57 WASHED STONE
C� a< //\ \/ ,�// \ \ \ \\\�\ d THE FENCE OR OUTLET EXISTS, MAKE
1 - December 31 ° <. \ \ \�\/\/\/ \/\/\/\/
STRUCTURE SHALL BE CHECKED FOR DAMAGE AND THE SPILLWAY SHALL BE (August ) ✓ / / / � /\/\/ �\,\ \ \ .•• / / / /� N REPAIRS IMMEDIATELY.
MAINTAINED. DAMAGES SHALL BE REPAIRED IMMEDIATELY. WHEN \,,//�\/ \ //\\�� SEDIMENT
SETTLEMENT OF THE EMBANKMENT OCCURS, FILL SHALL BE PLACED SIX Common Bermuda grass (unhulled) - 15 pounds per care SEDIMENT \\,\ \\\\\\' /\\�' 2. CLEAN OUT ACCUMULATED SEDIMENT AS
INCHES ABOVE DESIGN GRADE. STONE SHALL BE REPLACED WHEN Tall Fescue - 120 pounds per acre \ '��%/%/ ` ` . //%� NEEDED TO ASSURE PROPER OPERATION OF
P P P 2"x 4" WOOD STUD \j� ; � EX/STING GRADE a THE FILTER. WHEN THE STONE FILTER
DISPLACED FROM THE FILTER. Cen ti ede - 8 pounds per acre BECOMES CLOGGED, REMOVE THE
DROP INLET WITH GRATE 1 O CONTAMINATED STONE, DISPOSE OF IT
2. TEMPORARY ROCK CHECK DAM: Seed Bed Protection. a° PROPERLY, AND REPLACE WITH CLEAN
REMOVE SEDIMENT AND RESTORE SEDIMENT STORAGE AREA TO ITS ORIGINAL �� FILTER WASHED STONE.
DIMENSIONS WHEN SEDIMENT ACCUMULATES TO THE MAXIMUM DEPTH Straw Mulch - 2 tons per acre (visual) CURB INLET FABR/C Z
ALLOWED. ADD STONE TO FILTER BERM AS NECESSARY TO MAINTAIN DESIGN Asphalt Tack - 0.03 allons er s uare and J. WHEN THE AREA ABOVE THE OUTLET HAS
P 9 P q y BEEN STABILIZED, REMOVE THE OUTLET AND
DIMENSIONS
CURB INLET DROP INLET 6" N N DISPOSE OF PROPERLY. PROPERLY STABILIZE
•
4. Seed or otherwise provide ground cover devices or structures
NOTES. THE AREA WHERE THE OUTLET WAS LOCATED.
3. SILT FENCE. sufficient to restrain erosion for all exposed slopes within 15 1. THE FOUNDA77ON SHOULD BE EXCAVATED AT LEAST 2 INCHES BELOW THE CREST OF THE STORM DRAIN. PLACE THE BOTTOM ROW OF BLOCKS AGAINST THE EDGE OF THE STORM
ANY FABRIC WHICH COLLAPSES, TEARS, DECOMPOSES OR BECOMES working days or 30 calendar days of completion of any phase DRAIN FOR LATERAL SUPPORT AND TO AVOID WASHOUTS WHEN OVERFLOW OCCURS. IF NEEDED, GIVE LATERAL SUPPORT TO SUBSEQUENT ROWS BY PLACING 2 x 4 WOOD STUDS
INEFFECTIVE SHALL BE REPLACED IMMEDIATELY. SEDIMENT DEPOSITS SHALL of grading. THROUGH BLOCK OPENINGS
BE REMOVED WHEN SEDIMENT BEHIND THE FENCE REACHES SIX INCHES.
2. CAREFULLY FIT HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1 2-INCH OPENINGS OVER ALL BLOCK OPENINGS TO HOLD GRAVEL /N PLACE. PROFILETLET
5. AlI erosion and sedimentation contra/ devices shall be /
4. STOCKPILES. inspected by the Contractor after each rainfall. When STOCKPILES SHALL BE CHECKED FOR SEDIMENTATION. AND STABILIZATION. J. USE CLEAN GRAVEL, 3 4- TO 1 2-INCH iN DIAMETER, PLACING 2 INCHES BELOW THE TOP OF THE BLOCK ON A 2. 1 SLOPE OR FLATTER AND SMOOTH /T TO AN EVEN GRADE. DOT
inspection reveals the trap to be reduced to 507. of design #57 WASHED STONE /S RECOMMENDED.
capacity or the device to be deficient in its intended IL
5.. SEEDING, FERTILIZING, AND MULCHING: purpose such as fabric deterioration for silt fences the 4. IF ONLY STONE AND GRAVEL ARE USED, KEEP THE SLOPE TOWARD THE INLET NO STEEPER THAN J. 1. LEAVE A MINIMUM 1-FT WIDE LEVEL STONE AREA BETWEEN THE STRUCTURE
SEEDED AREAS SHALL BE INSPECTED FOR FAILURE AND NECESSARY REPAIRS Contractor shall restore the device to its original AND AROUND THE INLET TO PREVENT GRAVEL FROM ENTERING INLET. ON 7HE SLOPE TOWARD THE INLET, USE STONE 3 INCHES /N DIAMETER OR LARGER. ON THE SLOPE AWAY FROM
AND RE-SEEDINGS SHALL BE MADE WITHIN THE SAME SEASON, 1F POSSIBLE. condition. THE INLET, USE 1/2 - 3/4-INCH GRAVEL (NCDOT #57 WASHED STONE) AT A MINIMUM THICKNESS OF 1 FT.
COMPACTED SOIL SEED 2' MIN. EXISTING GROUND
IMMED/A TEL Y AFTER 18" MIN. SEED IMMEDIA TEL Y
6. CONSTRUCTION ENTRANCE AND EXIT 6. All erosion and sedimentation control devices shall remain
INSPECT CONSTRUCTION ROAD SURFACE REGULARLY, MAINTAIN IN A in p CONSTRUCTION AFTER CONSTRUCTION
lace and be maintained by the Contractor until all
CONDITION TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TOP WITH ANDORAVELINLETI 3 _
seeding is established and construction areas have been _ _ADDITIONAL FLOW
ANY ACCUMULATED SEDIMENT.NE WHEN DED. SWEEP EXISTING ROADWAY TO REMOVE stabilized (NOT TO SCALE) (--III=) -
TEMPORARY BAFFLE NOTES.
7. TEMPORARY DIVERSION DITCHES:
1. GRADE THE BASIN SO THAT THE BOTTOM IS LEVEL FRONT TO BACK AND \ \ \ \ \ \\/\\\ /\ \ \�\�\/\�\�\�\�\'
REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR DIVERSION RIDGE Erosion e ' entatlon Control Provisions: SIDE TO SIDE. ///\�/ / / / /� \/%\����/�o/%\����/%/ /�\\/�\/�\/�\///\/ \ �\/�\/�\\/x\\�\\/�
AFTER EACH RAINFALL, 2. INSTALL POSTS OR SAW HORSES THE WIOTH OF THE SEDIMENT TRAP. ,///////j//j/// /i///////� /i��//�//��//�\/�//�N \�j/\ \j/\ \j/\j/\\j/\\j/��j\\/i;\//\\j/\\j/,\///�j
ROCK INLET SEDIMENT TRAP TO BE INSTALLED AROUND EACH CATCH BASIN J. STEEL POSTS SHOULD BE DRIVEN TO A DEPTH OF 24 INCHES, SPACED A BAFFLE (TYR) ��0 6'
AND DROP INLET AND ALL LOCATIONS INDICATED ON PLANS MAX/MUM OF 4 FEET APART AND INSTALLED UD THE SIDES OF 7NE BASIN E�
8. GRAVEL INLET PROTECTION: AS WELL. THE TOP OF 77-IE FABRIC SHOULD BE 6 INCHES HIGHER THAN THE EARTHEN EMBANKMENT {NOT TO SCALE)
REMOVE SEDIMENT FROM AROUND INLET AFTER EACH STORM. CLEAN OR 2 AREAS TO BE PERMANENTLY SEEDED INCLUDE STREET INVERT OF THE SPILLWAY. TOPS OF BAFFLES SHOULD BE 2 INCHES LOWER INLET ZONE
REPLACE STONE AS NEEDED. SHOULDERS, DRAINAGE EASEMENTS THAN THE TOP OF THE BERMS 357. OF SURFACE AREA 7EMPORARY DIVERSION DITCH
AND ALL DISTURBED AREAS. 4. INSTALL AT LEAST THREE ROWS OF BAFFLES BETWEEN THE INLET AND
OU7LETDiSCHARGE POINT. BASINS 20 FEET IN LENGTH MAY USE 2 BAFFLES. (NOT TO SCALE)
5. WHEN USING POSTS, ADD SUPPORT WIRE OR ROPE ACROSS THE TOP OF THE 5' CREST WIDTH
J. STOCKPILE TOPSOIL FOR USE IN BUILDING SHOULDERS AND LANDSCAPING. MEASURE TO PREVENT SAGGING.
6. WRAP POROUS MATERIAL, LIKE JUTE BACKED BY COIR MATERIAL, OVER SAW
10'-O" MAX. CENTERS 4. ALL RIP RAP SHALL HAVE FILTER CLOTH HORSES OR THE TOP W/RE. HAMMER REBAR INTO SAWHORSE LEGS FOR J WIDTH OF STONE BERM: AS REQUIRED
UNDERLINER, AND SHALL BE INSTALLED IN THE QUANTITY ANCHORING. 77-IE FABRIC SHOULD HAVE FIVE TO TEN PERCENT OPENINGS /N ( DITCH
ORANGE MESH FENCING FABRIC AND LOCATION INDICATED ON PLAN. THE WEAVE. ATTACH FABRIC TO A ROPE AND A SUPPORT STRUCTURE Wl1H \ EARTH BERM 6
AS MANUFACTURED BY TENAX OR ZIP TIES, W/RE, OR STAPLES �/\/
7. THE BOTTOM AND SIDES OF THE FABRIC SHOULD BE ANCHORED /N A TRENCH %�\��\%\\%\\/\
APPROVED EQUAL 5. ADDITIONAL EROSION CONTROL MEASURES BEYOND NCDENR //\//\//\//\//
OR PINNED WITH 8-INCH EROSION CONTROL MA T77NG STAPLES
REQUIREMENTS MAY BE REQUIRED BY THE TOWN OF P/TTSBORO. 8. DO NOT SPLICE FABRIC, BUT USE A CONTINUOUS PIECE ACROSS THE BASIN. \\/\
6. MINIMIZE CLEARING. e. /\\/\\ \\/\\/\\/\\/\\/\\\\\ 1
FIRST CHAMBER //\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\/ O�]nu
25q OF SURFACE AREA i\\j\\%\\j\\j\\j\\j\\j\\j\\ \\j\\j\\j\\j\\j\\j\\j\\j\\\\\j\ �1
co
TREE PROTECTION AREA //\//\//\//\//\//\//\//\//\/�\//\//\//\//\//\//�//\//\// \ Q
NO TRESSPASSING R 7. NO PERSON SHALL INI TIA TE LAND DISTURBING ACTIVITY PRIOR TO
RECEIPT OF NCDENR EROSION CONTROL PLAN APPROVAL. PROVIDE SUPPORT ROPE TO WIRE SECOND CHAMBER
ZONZ PROTECTORA I SUPPORT POST, 24' STAKE TO OUTLET CLASS I R/PRAP 259. OF SURFACE AREA
I COPY OF APPROVAL TO TOWN OF PITTSBORO. TO PREVENT SAGGING INTO BOTTOM OR SIDE SUPPORT WIRE
PARR LOSIBI OUTLET ZONE
20 ARBOLES/ 'N
PROHIBIDO ENTRAR X 50 X 6 159 OF SURFACE AREA
' ' " THICK COARSE AGGREGATE STONE PAD TO BE
� PROVIDED AT CONSTRUCTION ENTRANCE.
CLASS B STONE
#57 WASHED STONE
a
9. SEED OR OTHERWISE PROVIDE GROUND COVER DEVICES OR STRUCTURES
o SUFFICIENT TO RESTRAIN EROSION FOR ALL EXPOSED SLOPES WITHIN
LUIE
v ON TES.• 15 WORKING DAYS OR 30 CALENDAR DAYS (21 FOR SLOPES) OF PERSPECTIVE VIEW
COMPLETION OF ANY PHASE OF GRADING.0 TEMPORARY CHECK DAM
1. INSTALL FENCING WHERE 4' MAX. COIR MESH OR SIMILAR, (NOT TO SCALE)
SHOWN ON DRAWINGS AND V 10. CONTRACTOR SHALL INSPECT AND MAINTAIN AS NEEDED ALL EROSION STAPLED OR TRENCHED
MAINTAIN UNTIL CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH MAJOR INTO BOTTOM OR SIDE :®`®.``' �sa,o ® PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
U COMPLETION OF GRADING. WOOD POST STORM EVENT. FAILURE TO KEEP ALL EROSION CONTROL DEVICES /N .`®®®O�• •°' •••. s, PARKING LOT MODIFICATIONS AND EXPANSION
2< INSTALL SIGNS AT 50' - STEEL POST PROPER WORKING ORDER MA Y RESULT /N A STOP WORK ORDER OR ELEVATION AT BAFFLE1.
v 75' INTERVALS DO NOT CIVIL PENALTIES UP TO $5000.00 PER DAY OF VIOLATION. ® ® - Engineers
® IPlanners EROSION CONTROL DETAILS
NAIL SIGNS TO TREES. Surveyors
11. TOWN OF PlTTSBORO AND/OR NCDNR RESERVES THE RIGHT TO REQUIRE
® �7�4 2® - lliver6
Associates,Inc. Lic. No. F-0334
ADDITIONAL EROSION CONTROL TREE PROTECTION IMPLEMENTATION PROVE TO BE MEASURES SHOULD THE PLAN OR ITS INSTALLATION s ®®® ;® 107 East Second Street Since 1918 6131 Falls of Neuse Road,Suite 300 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
(NOT TO SCALE) (NOT TO SCALE) `�i� ®••.•GiNEA•°� �`� Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone]
V.
PROJECT NO. SHEET
z
LB1 % SURVEY DRAFT PN DESIGN DB CHECK DS �'„SCAL.3O' NACALE 2008107 C51 O
s
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�l :.
O \,� ;tit �; ." f1 /,•, PRUNE ONLY TO REMOVE ANY BROKEN, DEAD OR
DISEASED WOOD WHILE PRESERVING FORM AND
O ry CHARACTER OF TREE;DO NOT CUT LEADER;DO NOT
r
® ® lC± r PRUNE IN ORDER TO REDUCE CANOPY SIZE
i
— ___— - - - - - — wM - - __ _ a ^`
---- '.
_ NATURAL SOIL LINE
Q- _._ — .._-_ — — —
jµ BOO b,Y S t,h ?,Y� �--.- �� -- 7 ; \� ® -- —_ — _ J{ .w ® >s �,3'a "\F \ /,'°-. >✓
"Al 0_0to 't '\ / - - _ - -.. - - - - - T =,, y ROOT CROWN
g p
t r
i , � �",
V u
— _ TOP OF BA
- _ LL AS DUG
- s - � to
S � ®l' 6
—
f
\\ I - - - CUT AND REMOVE TOP 112 OF WIRE BASKET, TURN
7 0 R --;--
�p/q BURLAP; REMOVE AL I,,CORD> z �j f - _ \ 1 DOWN TOP 1I2 OF BUR.. P; R 1 & TWlNF..
,I -�__,-__. H T
/ 5 O F 7 VV H NONDEGRADABLE WRAP IS
f LE
�� - -- _---- -- USE REMOVE TOTALLY
rr r ,�' MBA TRUNK; 1F\ FRO SE OF T
/ \ 4 BUILT-UP EARTH SAUCER AT EDGE OF ROOT BALL
f -
-_
1'- ��: � ~ � � ' � r (OPTIONAL) IF PROVIDED,REMOVE PRIOR TO ONE YEAR
INSPECTION
— = f
2-Y SHREDDED BARK MULCH,3"MINIMUM FROM I RUNK
(DO NOT PLACE MULCH IN CONTACT WITH TREE TRUNK)
I I C k ,,.
I r3 ( ?� �`%`✓y � ' �; .�Iw.`N � UNAMENDED BACKFILL
}
i LE /` .. UP EDGE OF PLANTING P
BREAK NG
,
<
AY.
r � IT
f _ - ROOT BALL
01I}i TAMP SOIL SOLIDLY AROUND BASE OF
M 12 MIN.
LEAVING SOIL PEDESTAL UNDISTURBED
I
..... I
t I ! I O t0
2 t+�M 363 ' NOTES
<
1 i ►� i I ? '_ ( I -1I( II il'= Contractor to verify that adequate drainage
: f ;r ; I \ , I t I� II
BIORETENTION PLANTING <, i` � IIf II 11 . -.'I--:1 ,-- exists prior to planting.
r° 1 TP I ; F r r 2. Do not wrap trunk of tree.
! �. = :I-
� » ,11 SEE SHEET C601 I;I �� �( ) I t 111 I I 11, E_1_:,I I)I << 3. Staking of trees is not recommended, except on
t i \rf i t�
\`\ \ I 1 I I 11 .......__ ( ...f� windy sites or for large evergreen trees. If
t \ t \ \
11 staking is done,flexible straps-not hose and
-t.!l = III I I v .- wire-should be used and must be removed at
appropriate time. Property Owner is responsible
for repiacernent of destroyed or damaged trees.
DIG WIDE,SHALLOW PLANTING HOLE 4. All trees shall conform to the standards set forth
\ a
I € 1 � tra � l
l I j i \ \GA -� 0 1 �' J ,t ` 1 t ' `r° WIDTH= 3 X WIDTH OF ROOT BALL
1 r t- t \ t in the most recent American Standards for
s \ r w I UFFER #
5 WIDE PINE'\BARK \ \ ���o�\ + mow' Aso 30' II . ; 'lo' I / ry p y
I ( / Nurse Stack published b the American
MULCH 400 S FT. \ \ `. w t J 20,; zo(JE 1 I a 1} { Association of Nurserymen(A.A.N.).
t l i ) 5\ WIDE PINE BARK\ �� 1 o 1. 1;` €
\ C` 1 t ZONE 2 € n t 5. Trees with root flare covered b more than 15'
MULCH, (1 350 S4 FT.) l i 1
of soil will be rejected prior to installation,
! 1 e
RR 6. A root collar excavation for all trees specified
G� ? , ;, 1 ? ? ( own Arborist to ensure that
38s° \ 7 TP 8 7 8 \, 7 11 } �4 t 1 �. \ will be done by the T
2 ! trees were not planted/grown Town too deeply at the
RR t4 RR RR \ RR RR RR } t I I r P g p v I., . TP I w
I t? c3 v ! source nurse Landscape contractor shall
a6 RR "_. ; F ma P
rl { - «- 3 3$ \ i I I ' 1 I have supplier mark ground level line above
TREEPL�` �
GA � � \:
rootball. If Town Arborist determines that there
_..._ ._.__..._,. ,_,.,µ, me" ��..„_,,, 'r t i 1
,.• � � _ over root crow these trees
" S , 1 3 F<
m.r
,E
z , '� �, 367366 �' � a I � ( € t ! � I € � # �! ' L.i is excessive soil n
_._,.._._ - = , - -~•_.- " 1 i I ( r tb will be rejected,
36 Des. ___. z F }I i Ij i 1 �I I Ii 1 I I _,\ \ (NOT TO SCALE) J
` � F f t
-., M.€ IL � � If
"r ra I 1 "" '`,., c r : � o o t � ry� t ?� .W__ r�"�``37M 3 "�.. -.-.....M \ �, ,y , •.;4<�, ,.r I. � � f � � t 4 � 7 �; I \ 11
� " I:`a z G �• �[ 1 � tI �} ° 1 ` �4 r ( ) ( 1; t \� SET TOP OF ROOT BALL 1"-2"ABOVE
FINISHED GRADE
FOLD BURLAP DOWN INT
t FLUOSH WITH FINISHED
BALL
Q6. Z-3"SHREDDED BARK MULCH-DO NOT
WCR W o Wt W t w t 1'� ( I
s st W W _1 , � , GRADE
N � W (3t � � �° r t' � '{1 '§`1 7 1 t PLACE AGAINST TRUNK
Chi 1 0 W1 �`` 1 '
BACKFILL•AMEND THE TOP 6" r.
Q 1,
N € ' < r O 0 i € i 1��� BY INCORPORATING 1,,-1.:5"
CONTAINER GROWN PLANT-PULL ROOTS
W , t I ;ll 1 1-
`` t COMPOSTED GROUND BARK t1 r
1 3 i 2 48» O.C. l1 II i °`,� �/ �` j OUT OF BALL,OR CUT SIDES
i I I OR'OTHERSUITABLE '���
ORGANIC MATTER OR i y' °,t
I t5 ~1 1I FIRM PEDESTAL UNDER ROOT BALL
PINE��,�., 1 � � l; ' PROVIDE NATIVE SOIL WITH
I \ t I l y I Q I Z � _� � r t � � 't � 1 '£ � �3 I `` ' MULCH 1 �: �,�� � A MINIMUM OF 5%HUM!,
1 ,
z I \ GA t ) € MATTER
(2,600 r, i l 1'} 12"DEEP-CULTIVATE
IENTIRE PLANTING AREA
j It = LiJ L_.,._.. __ . _.._._.,..
� i
� � sQ.FT.) _
Cn 375 1 I I - WHEN
I, ,, �g
BREAK UP
I, EDGE IN PLANTING MULTIPLES
o i � 7 \ .'II T is - ,I
- _ "' 3 I € 1 PLANTING # _:.I; ._ l.s L 1_r l i {I
AS
GLE
I �_ 372___ J,� � I I 1 I�
;r.....:>.,..;- �... ,I I FORINARGERDSHRUB
Z
_... .._. � ._..��.,,,.. "--�__�.� �_� "� �, � t � ;,'_.__.._...__._,._...�__ �,��371 ��' ,> � , I � PIT i� I i l � I ��., I 1I I r I__ 1, i , I I, I {
I
-,y I �. .�."...____p_-- , ---.,„ -- 1 1 � i : I , I I :,L . I: L 1 j { i .I i I
__ � \ } \ f{ j, ( �"...�---�- ' ROOT BALLS,MAKE 4"
LJJ [� I ��,_. ..,,_ Q <,- ,:, .,' w„w,..-,.,.._�"""---- `"` ..____-•--,'\,_ ' ` \`, � ) J ,,,,,,,,,,, ,,, � t I Il II I II I 1 I " I I I I i� l �
— ~ - THAN ROOT
DEEPER
_„ I ^ � � y ,._.•=Q �_M.."._ ......, ----_ � ,... ,", ` -._. ~� Y'\ BALL)
--
�, (
�% ..-V .7J^• ,.,.,,.,... _. 2 1 t # , ( I ,t, 1 , } `i ? 1 1� ",w. h I- I € .. ". I I ( `1� t it .I., i:_... 7i NOTES
CID
1. All shrubs shall conform to the
standards set forth in the most
recent American Standards for
Li.� Nursery Stock published by the
w American Association of
Nurserymen (A.A.N.).
2. Soil analysis shall be obtained
SHRUB, Ot/� AND
i i t 1 I} t i - _ w' ` ® U R prior to planting. Soil shall be
(( t ( i ,,{ I 1 f f amended as recommended.
I. \ Ij I I II I 3. Sheet preparation of beds is
t i r # ) J\ q t 'k 4 1 ) I II I I ~ -PERENNIAL !® highly preferred to individually dug
ti cj 3 €
I �1 f I tr s f f A CA { r Cr+ a a I I n (�
t 1 I 13 ;OD 3 f j 2 I 0)t' � `` � a r �1 I� I i ® U' (NOT TO SCALE) holes.
i Tp _ -
# III
� _ . _ _ t� ;. I I I I I Ir € I I U
I= '„ \, -3 i I 1 I I ' ' 1 ! F I I; 1 W
I I1 1 I I 1 tsI i I 1 r 0
375
w ,
!J: PLANT MATERIAL LIST
� �' ' l t ��, �1 t LAN
t �� a, I I.I 1 TOTAL SYMBOL BOTANICAL NAME COMMON NAME CALIPER HEIGHTSPREAD n
`► w p s } \ , 00 COMMENT
-
If
'' ! \ TREES
'� ,,- QA '------------- . ---- ... �-°` � FF # I, �� '
'I ' 1
I I i j 50 U E
'30' �I 5 BC TAXODIUM DISTICHUM BALD CYPRESS 3" 12' - 14' B-B ---
# 2 r""'" -- =- __ -- # f ;2 f `� TONE 1 t, 9 ---
1 ,,� � . r,ZO E}2 �I I �-�� I 8 CC CERCIS CANADENSIS EASTERN REDBUD 2 8 - 10 B-B
' t i 370 r .e 4 QA QUERCUS ALBA WHITE OAK 3 12 - 14 B-B ---
1I wM 1 �< I 1 -' �� t II1 1 ---
}# QA 1 -_ _ l f ,11/ 10 TP LIRIODRENDRON TULIPFERA TULIP POPLAR 3 12 - 14 B-B ---
I
_______., _ _ o QA
10 LE ULMUS PARVIFOLIA LACE BARK ELM 3" 12 - 14' B-B
QA 1 �, N ! i r "' _,w 10 GA FRAXINUS PENNSYLVANCIA GREEN ASH 3 12 - 14-
itB-B ---
I zl01k
2 �� � \ :.._,��..�` �,\ �� ,�, _ "�-.; ----�~'' ___ _��- _�-�_.�.s� �.. -' ,�``�-��,� N ��'._.—--�` , I 1� � I
SHRUBS
v z Fri c
__ f
F ,�`i � N „' f� �. ' > > }
1 I 1 ! \ ` ;- .— (_ _ --- - ., - - --fit ww -` � - '�N I:� I i 67 RR ROSA RUGOSA RUGOSA ROSE 2 - 3 3 GAL. CONT. 4 OC
``'o' _..... ..__. ...�... ._._ _ � -3C _ � `� '� mo � J �` '� \ � i 50 SO CHASMANTHIUM LATIFOLIUM SEA OATS 2' - 3' 3 GAL. CONT. 4' OC
d " I € I ► _ ? r / ,, f. N r<" \ ;I \ 50 HT EQUISETUM FLUVIATILE HORSE TAIL 2 - 3 3 GAL. CONT. 4 OC
I I •• _ - l �----- S8 SYMPLOCOS PANICULATA SAPPHIRE BERRY 2' - 3' 3 GAL. CONT. 4' OC
_ _" \ . °\ '\ ) \ 50
,
t
r
r r
~
��`,� TREE SYMBOL LEGEND
n._ LACE BARK
_ w «.- µ
_- EXISTING BALD WHITE OAK
_._. _,,,_ ° ELM
M t G l}�� z _ - - _ TREE CYPRESS
yyg _ g
- -"
_
o �,,..
( I _
area-- PLANTING TAG
, , _""--- - -„--- GREEN ASH
EASTERN TULIP
_;78— QUANTITY POPLAR
I I \ -—-_ ?? REDBUD
PLANT IDENTIFICATION
34` I �
� (SEE TABLE THIS SHEEP)
` ,.��`� `CA ► ,, PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
30GRAPHIC SCALE 30 ® `® O •••°° •. ,,�' ® PARKING LOT MODIFICATIONS AND EXPANSION
s�
•@ Engineers
'► = ozo:lPlanners
Surveyors LANDSCAPE PLAN
J � �
IN FEET ) 20744 ®® &Associates,Inc. Lic. No, F-0334
Since 1918 CENTER TOWNSHIP, CHATHAM COUNTY, NORTH CAROLINA
00 1 inch - 30 ft. ® ,�,� ® ` 107 East Second Street 6131 Falls of Neuse Road,Suite 300
N ,®®o .;�G7®®,.. �e`.`0 Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT NO. SHEET
®�® L• SURVEY DRAFT PN DESIGN DB CHECK DS 1 " - 30' NA 2008107 C600
♦`
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1. Planting Soil __. „w 4V
w
The bioretention area shall consist of a planting soil mix that is uniform and free of stones, stumps, roots or other similar
material greater than 2 inches, brush, or any other material or substance which may be harmful to plant growth, or a F - ,; r ,a - "- "
hinderance to planting or maintenance operations. The planting soil mix shall also be free of plants or plant parts of s
Bermuda grass, Quack grass, Johnson grass, Mugwart, Nutsedge, Poison Ivy, or Canadian Thistle.
The planting soil mix shall be a homogenous soil mix of 85-88 percent by weight sand (USDA Soil Textural Classification), 8
to 12 percent fines (silt and clay)(No high shrink/swell clays), and 3 to 5 percent organic matter (such as peat moss, no -- - - /M
animal waste or compost thereof, P Index<30).
The planting soil mix shall be tested before placement and meet the following criteria:
Corrected pH 5.5 - 7.5 _.. -
Organic Matter 3% - 5%
Magnesium Minimum 32 ppm _i "..___.__ _" i
Phosphorus (P205) Not to exceed 69 ppm ; Q1 .._
Potassium (K20) Minimum 78 ppm _._m,•-
soluble salts less than 500ppm
j it cam^',...,�L.�:d^`/ ''^'`,.i�.l �i✓� ¢rp�����...L �" _ w. .,..�, .w.."...--. � .,,,,.»• ! , ly. '^-w•..,,-,..+.....,..,...� £ i t
Testing frequencies:
pH, organic Matter: 1 test per 90 cubic yards, but no less than 1 test per bioretention area.
Nm S=.
j
ft
Magnesium, Phosphorus, Potassium, soluble salts: 1 test per 500 cubic yards, but no less than 1 per bioretention area.
,t M1 ' ���:3 � �`�t �"`'��s ?r � ��`�E?i•.a 3 �^,�"� �i �� �,ws, '�•.,,F!7 ek��.„y,i, l; `l t
One rain size analysis shall be performed per 90 cubic yards of planting soil but no less than 1 test per i tt _ E �
g Y p p bioretention area. �..
Y p g � p tj I/) � ����~ .� C �Rom`, MIgg `��a,
Should the pH fall outside of the acceptable range, it may be modified with lime to raise or iron sulfate plus sulfur to
lower). The lime or iron sulfate must be mixed uniformly into the BSM prior to use in bioretention facilities. ate \ T ' 3 Z s
Should the planting soil mix not meet the minimum requirement for magnesium,
p g q g it may be modified with magnesium sulfate.
Likewise, should the planting soil mix not meet the minimum requirement for potassium, it may be modified with potash.
Magnesium sulfate and potash must be mixed uniformly into the planting soil mix prior to use in bioretention facilities.
The planting soil shall be tested to determine an actual drainage rate after placement. The permeability should fall between `
0.52 and 6 inches per hour, with 1-2 inches per hour preferred. i � 4,M
2. Mulch:
CA
Shredded hardwood bark shall consist of the bark from hardwood trees which has been milled and screened to a maximum
i�,
4 inch particle size and provide a uniform texture free from sawdust, foreign materials, and any artificially introduced � � \�, ��_., £��,�'-,
chemical compounds that would be detrimental to plant or animal life. Mulch shall be free of weed seeds, soil, roots, and
other material that is not bole or branch wood or bark. Mulch shall be well aged and uniform in color. Well aged mulch is � � (� � .✓
defined as mulch that has been stockpiled or stored for at least twelve (12) months. IN-0
5r # g
3. Placement BUFFER
30 .
�./ 5 ' i I
(� 20, i ZONE 1 ?
Prior to placing the underdrain and the planting soil mix the bottom of the excavation shall be roto-tilled to a minimum depth ` ZONE
0 r-' 12
of a 6 inches to alleviate an compaction of the basin bottom. An substitute method for roto-tilling must be a y `� "
Y p Y g approved b the � � I
engineer prior to use. Any ponded water shall be removed from the bottom of the facility and the soil shall be friable before
roto-tilling.
The planting soil mix shall be placed and graded using low ground-contact pressure equipment or by excavators and/or co `
backhoes operating on the ground adjacent to the bioretention basin. No heavy equipment shall be used within the perimeter of the bioretention basin before, during or after the placement of the planting soil mix. The planting soil mix shall
be placed in horizontal layers not to exceed 12 inches for the entire area of the bioretention basin. The planting soil mix shall ' , b._. . '.
be compacted by saturating the entire area of the bioretention basin after each lift of planting soil mix is laced until water r
p g p �
flows from the underdrain. Water for saturation shall be applied b spraying ors sprinkling. Anappropriate sediment control 'pp Y p 9•
device shall be used to treat any sediment-laden water discharged from the underdrain. If the planting soil mix becomes i
contaminated during the construction of the facility, the contaminated material shall be removed and replaced with
uncontaminated material at no additional cost to the owner. Final grading of the planting soil mix shall be performed after a
24-hour settling period. Final elevations shall be within 2 inches of elevations as shown on plans.
Once plants are in place the entire bioretention basin shall be mulched to a uniform thickness as indicated on the plans.
Excessive application of mulch can result in a situation where the plants are growing in the mulch and not the soil.
4. General Planting Specifications: 4 266
i r
- 67
3-7 7
Root Stock of the plant material shall be kept moist during transport from the source to the job site and until planted. I ;
Walls of planting pit shall be dug so that they are vertical 376 8
The diameter of the planting pit must be a minimum of 6 inches (6") or larger than the diameter of the ball of the tree or 375 369
s
shrub.
The planting pit shall be deep enough to allow
tamped by hand. '/4" of the ball to be above grade. Loose soil at the bottom of the pit shall be 3 / 1
The appropriate amont of fertilizer is to be placed at the bottom of the pit (see below for fertilization rates).
The plant shall be removed from the container and placed into the planting pit by lifting and carrying the plant by its ball
(never lift by branches or trunk).
Set the plant upright and in the center of the pit so that the top of the ball is approximately 1/" above the grade. I
Backfill the planting pit with planting soil mix.
Make sure plant remains straight during backfilling procedure. ,
Never cover the top of the ball with soil. Mound soil around the exposed ball to a depth of 1/4". I
Trees shall be braced. 4
I i�a• I � (p� �43
Fertilization: :91
Tree and shrub fertilizer shall be a 21 gram, tightly compressed, long lasting, slow release (2 year) fertilizer tablet with a
minimum guaranteed analysis of 20-10-5: (}.�
a Total Nitrogen (N): °
0 20/0 m g
o Water Soluble Organic Nitrogen: 7/°
Water Insoluble Organic Nitrogen: 13%
Available Phosphoric Acid (P205): 10%
Soluble Potash (K20): 5% GRAPHIC SCALE
NQTE: BKONRETE10"UK"A"Am tF3AE31Na" LAN E lo-" L A F 4
10 0 5 10
For containerized trees and shrubs, place the specified fertilizer tablets in the bottom of the planting pit according to the
following rates: BIORETENTION PLANTING WILL BE SCALE: 1"
( IN FEET )
PROVIDED BY AND INSTALLED BY
0
1 gallon container: 1 each 21 gram tablet ' i inch = 10 ft.
3 gallon container: 2 each 21 gram tablet NORTH CARO LI NA STATE UNIVERSITY
5 gallon container: 3 each 21 gram tablet
19
WATER QUALITY GROUP
a 7+ gallon container: 5 each 21 gram tablet ®®ee``111'p"® o®
®�'c R PROGRESS DRAWING DO NOT USE FOR CONSTRUCTION CHATHAM COUNTY LAW ENFORCEMENT CENTER
•®` �••° •, PARKING LOT MODIFICATIONS AND EXPANSION
BIORETENTION BASIN
Engineers
® - Planners
SEAL
J v ® Ai
20744 -
Plivers
Surveyors LANDSCAPE PLAN
Associates,Inc. Lic. No. F-0334
cc
Since 1918 CENTER, TOWNSHIP, CHA THAM COUNTY, NORTH CAROLINA
107 East Second Street 6131 Falls of Neuse Road,Suite 300
ew`� Greenville,NC 27858 [phone] Raleigh,NC 27609 [phone] H. SCALE V. SCALE PROJECT NO. SHEET
®r►erAsvo®e SURVEY DRAFT DAB DESIGN DAB CHECK DLS AS SHOWN AS SHOWN 2008107 C601
s
s
V
i