20180660 Ver 2_4-Wetland Impact Exhibits_20190315

GAY FAMILY LIMITED PARTNERSHIP II
104 W HORTON STREET
ZEBULON, NC 27597
BUNN EDGAR ROGER III HEIRS
436 E SECOND STREET
OCEAN ISLE BEACH, NC 28469
DEVELOPER
LGI HOMES, INC
3037 SHERMAN DR.
LANCASTER, SC 29720
CONTACT - BOBBY MACNAUGHTON
[e-mail]
Sheet
Number
Sheet Title
1
COVER
2
OVERALL IMPACT MAP
3
IMPACT AREA A-1
4
IMPACT AREA A-2
5
IMPACT AREA B
6
PRELIMINARY PHASE III IMPACTS
7
IMPACT AREA C
8
IMPACT AREA D-1
9
IMPACT AREA D-2
10
DETAIL SHEET
11EXI(I N -I"
F�,-U l l \ 1 \ LAKES S S BD1 \ SIO - PHASE 1AS 11111
1 11
%1 .B L 1.ON \C
LOCATION MAP
COPYRIGHT 2010 NAVTEQ & 2016 MICROSOFT CORPORATION
PHASE ASE III SITE DATA
SITE AREA: (AC.)
"ImaN e
WATERSHED:
FIRM MAP DATE:
FIRM MAP NUMBER
FLOODPLAIN:
PHASE II AREA:
PROPOSED # OF LOTS:
PROPOSED DENSITY:
PERCENT IMPERVIOUS: (%)
SUBDIVISION DISTURBED AREA: (AC.)
PIN# 2706615785: ±85.65 AC
PIN# 2706729236: ±22.38 AC
PIN# 2706514158: ±52.01 AC
Total = ±160.04 AC
R -13 -SU D
BEAVERDAM CREEK (NEUSE RIVER BASIN)
MAY 2, 2006
3720270600J
NOT IN FLOODPLAIN
53.74 AC
157
2.57 DUA
16.52 AC/ 61.13 AC=27%
34.25 AC
ENVIRONMENTAL IMPACT MAPS 1000 500 250 0 5/9/1SIPMA INCR162057
N 1000
D�� L�R
IENcGIING lE1ERYNNC T PLLC AUTUMN LAKESUBDIVISION PHA -
U U S -
SE 1111 1"-1000'
NCBELE P-1 132
BLVD.,
40„ WES7CHASE BLVD., SUITE 3-2 0 OLD B U N N ROAD �}�v
90
PHONE: [phone] FAX: [phone] L&K
COPTHE EDUSEDINFORMATION, FOR ANY
URPOSEWITHND CONTENT OUTHIS PRIOR N ITE PROPRIETARY AND SHALL NOT BE COVER R SHEET
COPIED OR USED FORSIG PURPOSE WITHOUT PRIOR WRITTEN PROPRIETARY
AUTHORIZATION FROM LOOTER HOME S
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BEUTILIZED FOR Z E B U L O N, N C 27597
CONSTRUCTION PURPOSES. ©BOHLER ENGINEERING, 20101 7
NIII�I I 1 UIQ Ip

1
I I
1 I
1
1
' I I
I
1
1
I
1
1
I
I I I
PERMANENT -
WETLANDS IMPAC
ERMANENT-WETLANDSIMPAC
I I
I I
I I
1
1
/ 1
1
1
1
1
/ 1
1
1
/ 1
1
1
/ 1
1
1
1
1
/ 1
1
1
1
I
1
1
1
1
I
I
1
1
I
1
1
I
I
1
I
I
Impact Type
1
A
Permanent (Rip -Rap)
0.00 AC (102.63 SF)
1
Construction/Conversion
1
�
1
1
�
\
.
1
i
,
`
I
1
I I
1 I
1
1
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1
1
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PERMANENT -
WETLANDS IMPAC
ERMANENT-WETLANDSIMPAC
I I
I I
I I
1
1
/ 1
1
1
1
1
/ 1
1
1
/ 1
1
1
/ 1
1
1
1
1
/ 1
1
1
1
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1
1
1
1
I
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1
1
I
1
1
I
I
1
I
I
1 I I
1 I 1
1 I
1 IJURISDICTIONAL
1 1
WETLANDS AREA
W PROP. 8" DIP, 45MAX
SPAN SANITARY - - - - -
. SEWER CROSSING
1 �
1
1 , ,
� I 1
1 I 1
� I 1
I I 1
S= _ _ _ S_ 1 S S
1 1
I 1
45'
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1
_ _ _
1
I
30, '
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1
1
30'
)NE 1
0 0
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ENT I
DSIMPACTI
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0
1
1 I
1
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1
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1
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1 Q
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P0' I
_ZONE2- -I- -
LEGEND
PROPERTY LINE
PHASE LINE
WETLANDS
PERMANENT IMPACT AREAS
WETLAND
CONSTRUCTION/CONVERSION
IMPACT AREAS
- WETLAND
NOTE:
MAINTENANCE CORRIDOR WIDTH IN BUFFERS
NOT TO EXCEED 10'.
Location
Impact Type
1
A
Permanent (Rip -Rap)
0.00 AC (102.63 SF)
A
Construction/Conversion
0.02 AC (1,021.81 SF)
1
.
1
1
�
,
`
I
1
I
I
1 I I
1 I 1
1 I
1 IJURISDICTIONAL
1 1
WETLANDS AREA
W PROP. 8" DIP, 45MAX
SPAN SANITARY - - - - -
. SEWER CROSSING
1 �
1
1 , ,
� I 1
1 I 1
� I 1
I I 1
S= _ _ _ S_ 1 S S
1 1
I 1
45'
I
I- 1
I I
I ,
I
1
}
I
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I
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I
I
I ,
I
1
_ _ _
1
I
30, '
I
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I
1
1
30'
)NE 1
0 0
I
ENT I
DSIMPACTI
I
I
I
O
' I D
O
I
0
1
1 I
1
1
1 I
1
1
1. I
11 I u
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1
1
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1
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1 O
1 Q
i I
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P0' I
_ZONE2- -I- -
LEGEND
PROPERTY LINE
PHASE LINE
WETLANDS
PERMANENT IMPACT AREAS
WETLAND
CONSTRUCTION/CONVERSION
IMPACT AREAS
- WETLAND
NOTE:
MAINTENANCE CORRIDOR WIDTH IN BUFFERS
NOT TO EXCEED 10'.
Location
Impact Type
Wetlands Impact
A
Permanent (Rip -Rap)
0.00 AC (102.63 SF)
A
Construction/Conversion
0.02 AC (1,021.81 SF)
N
ENVIRONMENTAL IMPACT MAPS 5/9/18 PMA NCR162057
10
®D L E R 10 5 2.5 0
IZ14GRI41EERING Pik PLLC AUTUMN LAKESUBDIVISION - PHASE 11
NCBELS P-1132 111=10'
4011 WESTCHASE BLVD., SUITE 3-2 LEj
0 OLD B U N N ROAD 0
PHONE: WEST
HASE FAX, (919) 3-2665
COPTHE IEDOR USED,RSIGN PURPOSEND ENT WITHOUTHISPLANITEPROPRIETARY AND SHALL NOTBE IMPACT
���� ���
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN PROPRIETARY
AUTHORIZATION FROM NOT BE HOMES ((��((ii��''
ENGINEERING. NSTRUCTIAPPROVED, PURPSES. 0 DSEALE ENGINESHALLERING,
01 UTILIZED FOR ZEBULON, NC 27597
CONSTRUCTION PURPOSES. ©BOHLER ENGINEERING, 2017
SHEET 3 OF 10

LEGEND
PROPERTY LINE
- PHASE LINE
WETLANDS
PERMANENT IMPACT AREAS
ZONE 1 (30')
ZONE 2 (20')
TEMPORARY IMPACT AREAS
ZONE 1 (30')
ZONE 2 (20')
PERMANENT 10' MAINTENANCE
CORRIDOR IMPACT AREAS
El ZONE 1 (30')
EMMEMO
61 1011
i-ow-o.m
CORRIDOR WIDTH IN BUFFERS NOT TO
MPACT AREAS SHALL BE ALLOWED TO
VEGETATION
Buffer Zone Impacts
Zone 1
Zone 2
0.01 AC (208.14 SF)
0.00 AC (82.12 SF)
0.01 AC (333.13 SF)
0.02 AC (760.73 SF)
0.01 AC (142.44 SF)
0.01 AC (366.60 SF)
ENVIRONMENTAL IMPACT MAPS 5/9/161PMA INCR162057
N 10 5 2.5 0 10
T'L lE
NONG NO
0
O 1ERNMERIIPLLC AUTUMN LAKESUBDIVISION -
1 "--
10'
PHASE 11
NCBELS P-1132 r
4011 WESTCHASE BLVD., SUITE 290
PHONE: [phone] FAX: [phone] LEI i 0 OLD B U N N ROAD
THE COPIEDOR USED, FOR ANY
PURPOSE ENT WITHOUTHISPLAN ITE PROPRIETARY AND SHALL NOT BE IMPACT
���� ���
COPIED IN USED FORANY PURPOSE WITHOUT PRIOR WRITTENAUTHORIZATIONHALL BE ON FROM BOHLER HOMES �p/J'1 /\/L�'
ENGINEERING.NSTRUCTIAPPROVED, SIGNED SES. 0AND SEALED ENGINEERING,
01 UTILIZED FOR ZEBULON, NC 27597
CONSTRUCTION PURPOSES. ©BOHLER ENGINEERING, 2017
SHEET 4 OF 10

I I
I
� 11
1
� 1
1
� I
` I
i
LEGEND
PROPERTY LINE
I
-
-- -- -- -- --- - - - - - - - - - - - - - ----------A.-.-. .
I
-i WETLANDS
1
1-
1
' PERMANENT IMPACT AREAS
.1
I
- - - - - - - - - - - - - - - - - - - - - - -
,
WETLAND
,
CONSTRUCTION/CONVERSION
- \--------- IMPACT AREAS
_ _ _ _ _ - - - - - - - -
`- - - - - - - - - - - -
`, WETLAND
,
\- - - - - - - - - - - .
0
_-
0
� r
/ 11 � •=,8�/ Bev / � ' — , '
Location
Impact Type
Wetlands Impact
B
Permanent (Grading)
0.10 AC (4,309.12 SF)
B
Construction/Converstion
0.01 AC (482.86 SF)
TMOTTLER ENVIRONMENTAL IMPACT MAPS N 5/9/1S�PMA�NCR162057
D 20 10 5 0 20
® ENGIINEERING NOPLLC AUTUMN LAKESUBDIVISION - PHASE 11 -
NCBELS P-1132 1 „- 20,
4011 WESTCHASE BLVD., SUITE S-2 LEj
0 OLD B U N N ROAD 0
PHONE: WESTT63000 FAX: [phone]
COPTHE EDUSEDINFORMATION, FOR ANY
PURPOSEND WITHOUT
SPLAN ITE PROPRIETARY AND SHALL NOTBE IMPACT
����
COPIED OR USED FORSIG PURPOSE ETHOFTHIS PL WRITTEN PROPRIETARY
AUTHORIZATION FROM NOT BE HOMES �Y
ENGINEERING. NSTRUCTIAPPROVED, SIGNED SES0AND SEALE ENGINESHALLERING,
01 UTILIZED FOR ZEBULON, NC 27597
CONSTRUCTION PURPOSES. ©BOHLER ENGINEERING, 20n
SHEET 5 OF 10

- - I
I
I I
r Lti IMPACT AREA C
I %' -�<�� IMPACT AREA D $�Aj .�= AFP $ F
16,070 SF
XFZACGED
NPOONZ
_WETLANDS AREA
8,144 SF
FLAGGED
10' LANDSCAPE BUFFERS P
,WETLANDS AREAS
Jj r r1 �r� ��� 28,06 SF IN I
FLAGGED I I 1 1 1
WETLANDS AREA
1/29/19 PMA NCR162057
ENVIRONMENTAL IMPACT MAPS
N 200 100 50 0 200
®D (Un iL11XC
IE14GRI41EERING Pik PILL(
NCBELS P-1132
PHONE 919)57&9900 FAX.[phone] LEil
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARY AND SHALL NOT BE HOMES
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
CONSTRUCTION PURPOSES. © BOHLER ENGINEERING, 2017
AUTUMN LAKES SUBDIVISION - PHASE IIII
0 OLD BUNN ROAD
ZEBULON, NC 27597
PRELIMINARY PH III IMPACTS
SHEET 6 OF 10

260
-------
6'
0+00 0+50
24" CULVERT PROFILE
V:1"=5'
H: 1" = 50'
F 0 00� L��
IEN GHN EIEKIING NC, IPILILC
NCBELS P-1132
4011 WESTCHASE BLVD., SUITE 290
PHONE: (919)
5789000 FAX: [phone]
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARY AND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
CONSTRUCTION PURPOSES. 0 BOHLER ENGINEERING, 2017
LEGEND
PROPERTY LINE
WETLANDS
2 - 24" RCP CULVERTS BURIED 1' BELOW EXISTING PERMANENT IMPACT AREAS
GRADE TO ENSURE AQUATIC PASSAGE
ZONE 1 (30')
' ZONE 2 (20')
TEMPORARY IMPACT AREAS
ZONE 1 (30')
----------------
D
D ,
, D
ZONE 2 (20')
7
X
260
I II ``1i I/ I II
I I
I I It
F
I
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1 �
� I
I
I �
I I
LOCATION
PF
OP. GREENWAY GRAD
ZONE1
ZONE2
PROP. HEADWP
EX. GRADE
_
0.01 AC (565.68 SF)
C
I
1
0.03 AC (1443.03 SF)
0.01 AC (643.91 SF)
C
STREAM CHANNEL (CULVERT)
44 FT
PROP. 1' BURY TO
ENSURE AQUATIC
LIFE PASSAGE
0+00 0+50
24" CULVERT PROFILE
V:1"=5'
H: 1" = 50'
F 0 00� L��
IEN GHN EIEKIING NC, IPILILC
NCBELS P-1132
4011 WESTCHASE BLVD., SUITE 290
PHONE: (919)
5789000 FAX: [phone]
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARY AND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
CONSTRUCTION PURPOSES. 0 BOHLER ENGINEERING, 2017
LEGEND
PROPERTY LINE
WETLANDS
2 - 24" RCP CULVERTS BURIED 1' BELOW EXISTING PERMANENT IMPACT AREAS
GRADE TO ENSURE AQUATIC PASSAGE
ZONE 1 (30')
' ZONE 2 (20')
TEMPORARY IMPACT AREAS
ZONE 1 (30')
----------------
D
D ,
, D
ZONE 2 (20')
7
X
260
I II ``1i I/ I II
I I
I I It
F
I
� I
1 �
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I
I �
I I
LOCATION
IMPACTTYPE
BUFFER ZONE IMPACTS
ZONE1
ZONE2
C
PERMANENT (10' GREENWAY & 2' CORRIDOR)
0.02 AC (947.81 SF)
0.01 AC (565.68 SF)
C
TEMPORARY (UTILITY EASEMENTIGRADING)
0.03 AC (1443.03 SF)
0.01 AC (643.91 SF)
C
STREAM CHANNEL (CULVERT)
44 FT
1 1
ENVIRONMENTAL IMPACT MAPS
RIK
HOMES
AUTUMN LAKES SUBDIVISION - PHASE IIII
0 OLD BUNN ROAD
ZEBULON, NC 27597
N 1/29/19 1 PMA I NCR162057
20 10 5 0 20
1 "= 20'
d!
IMPACT AREA C
SHEET 7 OF 10

260
250
0+00 0+50
(2) 48" CULVERT PROFILE
V:1"=5'
H: 1" = 50'
260 LEGEND
F�-per PROPERTY LINE
FPS
FP�FP�-FP-FP�FP-FP
�FP FP FP FPFP r WETLANDS
'ALL
ZONE 1 (30')
250
IMPACT TYPE
BUFFER ZONE IMPACTS
EX. GRADE
PR
DP. GREENWAY GRAD
PROP. HEAD
4011 WESTCHASE BLVD., BLVD., SUITE 290
0.02 AC (886.75 SF)
PROP. 1' BURY TO
ENSURE AQUATIC
LIFE PASSAGE
D
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARYAND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
HOMES
0+00 0+50
(2) 48" CULVERT PROFILE
V:1"=5'
H: 1" = 50'
260 LEGEND
F�-per PROPERTY LINE
FPS
FP�FP�-FP-FP�FP-FP
�FP FP FP FPFP r WETLANDS
'ALL
ZONE 1 (30')
250
rr
00
WA
_ - - ._ •_ .iii __/_ iJ /� N "�"•"•"•_
,► r ' iiia ���.:�_�___�---a E-
1ppI
•••••••O•/ �••••�
7 L3 0 TmTL I E HR
C) TDD)
IMPACT TYPE
BUFFER ZONE IMPACTS
ZONE1
NCBELS
Ri
4011 WESTCHASE BLVD., BLVD., SUITE 290
0.02 AC (886.75 SF)
PHONE: [phone] FAX [phone]
D
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARYAND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
HOMES
ENGINEERING. 0 L APPROVED. SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
D
CONSTRUCTION PURPOSES. © BOHLER ENGINEERING. 2017
61 FT
`i
i
i
rr
00
WA
_ - - ._ •_ .iii __/_ iJ /� N "�"•"•"•_
,► r ' iiia ���.:�_�___�---a E-
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•••••••O•/ �••••�
7 L3 0 TmTL I E HR
C) TDD)
IMPACT TYPE
BUFFER ZONE IMPACTS
ZONE1
NCBELS
Ri
4011 WESTCHASE BLVD., BLVD., SUITE 290
0.02 AC (886.75 SF)
PHONE: [phone] FAX [phone]
D
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARYAND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
HOMES
ENGINEERING. 0 L APPROVED. SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
D
CONSTRUCTION PURPOSES. © BOHLER ENGINEERING. 2017
61 FT
eel
i / �.
/
LOCATION
IMPACT TYPE
BUFFER ZONE IMPACTS
ZONE1
ZONE2
D
PERMANENT (10' GREENWAY & 2' CORRIDOR)
0.02 AC (886.75 SF)
0.02 AC (746.83 SF)
D
TEMPORARY (UTILITY EASEMENT/GRADING)
0.06 AC (2802.95 SF)
0.02 AC (952.79 SF)
D
STREAM CHANNEL (CULVERT)
61 FT
ENVIRONMENTAL IMPACT MAPS x „29„9PMANCR,62057
20 10 5 0 20
AUTUMN LAKES SUBDIVISION - PHASE IIII 1"-20'
0 OLD BUNN ROAD
IMPACT AREA D
ZEBULON, NC 27597
SHEET 8 OF 10

260
250
260 LEGEND
FPS PROPERTY LINE
F*- r
PHASE LINE
�FP�FP�-FP-FP�FP-FP
FP�FP FP FP F? WETLANDS
AFP ,r< FP ,r<
ALL
WETLAND
250
m m m m m m m
100 YR 100 YR CONSTRUCTION/CONVERSION
YRS IMPACT AREAS
A A, A, 2 - 48" CONCRETE BOX CULVERTS BURIED 1' BELOW
100 YR 100 REXISTING GRADE TO ENSURE AQUATIC PASSAGE r
100 YR � WETLAND
,ila ,ila r. \1pp r. 100 tlL. m A, m � �00 YR
Jq YR
I '
,
S S S / S; ' '-'S-
0+00
'S
0+00 0+50
(2) 48" CULVERT PROFILE ,
V:1"=5' J
H:1"=50'
i
i
J
II 11 I \I
1 1 .• i i � /
F n7
DDJ ]ENGINEERIN� L
LO
NCBELS P-1132
PHONE [phone] FAX.[phone]
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARY AND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
CONSTRUCTION PURPOSES. © BOHLER ENGINEERING, 2017
E
LEil
HOMES
NVI RON M ENTAL IMPACT MAPS
AUTUMN LAKES SUBDIVISION - PHASE IIII
0 OLD BUNN ROAD
ZEBULON, NC 27597
LOCATION
IMPACTTYPE
WETLAND IMPACT
D
PR
DP. GREENWAY GRAD
D
CONSTRUCTIONICONVERSION
PROP. HEAD
EX. GRADE
r
PROP. 1' BURY TO
ENSURE AQUATIC
LIFE PASSAGE
260 LEGEND
FPS PROPERTY LINE
F*- r
PHASE LINE
�FP�FP�-FP-FP�FP-FP
FP�FP FP FP F? WETLANDS
AFP ,r< FP ,r<
ALL
WETLAND
250
m m m m m m m
100 YR 100 YR CONSTRUCTION/CONVERSION
YRS IMPACT AREAS
A A, A, 2 - 48" CONCRETE BOX CULVERTS BURIED 1' BELOW
100 YR 100 REXISTING GRADE TO ENSURE AQUATIC PASSAGE r
100 YR � WETLAND
,ila ,ila r. \1pp r. 100 tlL. m A, m � �00 YR
Jq YR
I '
,
S S S / S; ' '-'S-
0+00
'S
0+00 0+50
(2) 48" CULVERT PROFILE ,
V:1"=5' J
H:1"=50'
i
i
J
II 11 I \I
1 1 .• i i � /
F n7
DDJ ]ENGINEERIN� L
LO
NCBELS P-1132
PHONE [phone] FAX.[phone]
THE INFORMATION, DESIGN AND CONTENT OF THIS PLAN ARE PROPRIETARY AND SHALL NOT BE
COPIED OR USED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN AUTHORIZATION FROM BOHLER
ENGINEERING. ONLY APPROVED, SIGNED AND SEALED PLANS SHALL BE UTILIZED FOR
CONSTRUCTION PURPOSES. © BOHLER ENGINEERING, 2017
E
LEil
HOMES
NVI RON M ENTAL IMPACT MAPS
AUTUMN LAKES SUBDIVISION - PHASE IIII
0 OLD BUNN ROAD
ZEBULON, NC 27597
LOCATION
IMPACTTYPE
WETLAND IMPACT
D
PERMANENT (RIP -RAP)
0.01 AC (221.64 SF)
D
CONSTRUCTIONICONVERSION
0.00 AC (0.00 SF)
N 1/29/191 PMA I NCR162057
20 10 5 0 20
1 "= 20'
0
IMPACT AREA A D
SHEET 9 OF 10

APPROVED SEDIMENT FILTERING DEVICE
(SEDIMENT FILTER BAG). PROVIDE
POSITIVE DRAINAGE FROM SEDIMENT
FILTER BAG TO STREAM.
DISCHARGE ONTO
STABLE RIPRAP
PAD TO PREVENT r
SCOUR HOLE
FLOW —
DISCHARGE HOSES
DEWATERING PUMP
P t
1
SEDIMENT INTAKE CLEAN WATER
DIKE — HOSE DIKE
I� WORK AREA LENGTH NOT TO EXCEED THAT
WHICH CAN BE COMPLETED IN ONE DAY
STREAM DIVERSION PUMP
AKE HOSE
FLOW
CSUMP—HOLE
FOR POOL
_ (12" TO 18" DEEP, 2—FT DIAMETER)
TEMPORARY PUMP AROUND SEQUENCE
1. SET UP PUMP WITH SUCTION AND DISCHARGE HOSE.
2. INSTALL UP—STREAM SANDBAG DAM.
3. INSTALL DOWN—STREAM SANDBAG DAM.
4. THE PUMP MUST RUN CONTINUOUSLY WHILE WORKING IN THE STREAM.
5. STREAMBANKS MUST BE STABILIZED AT THE END OF EACH DAY.
OTES:
SANDBAG DIKES SHALL BE SITUATED AT THE UPSTREAM AND DOWNSTREAM ENDS OF THE WORK AREA, AND STREAM FLOW
SHALL BE PUMPED AROUND THE WORK AREA. THE PUMP SHOULD DISCHARGE ONTO A STABLE VELOCITY DISSIPATER
CONSTRUCTED OF RIPRAP OR SANDBAGS.
WATER FROM THE WORK AREA SHALL BE PUMPED TO A SEDIMENT FILTERING MEASURE SUCH AS A SEDIMENT BAG OR OTHER
APPROVED DEVICE. THE MEASURE SHALL BE LOCATED SUCH THAT THE WATER DRAINS BACK INTO THE CHANNEL BELOW THE
DOWNSTREAM SANDBAG DIKE WITHOUT CAUSING FURTHER EROSION BETWEEN THE SEDIMENT FILTER BAG AND THE STREAMBA*
TEMPORARY PUMP AROUND
Smoothly V-shaped Rlprap Channel
blend contact Finished channel
area �jDesign top width --^ N cross-section
Design
Trapezoidal Rlprap Channel
— Design top width
2:i
Design depth
v
111 Jlllr_mEll! r -11111-
Fabric or filter layer
Subgrade excavation
Fitter fabric
Or aggregate filter
DETAIL No.
04000.28
SHEET 1 OF 1
Figure 6. Typical riprap-lined channel crass -sections. (Source: Ref. 1)
AF BOH LER
ENVIRO
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ENGINEERING NC, PLLC �' AUTUMN LAKES SUBDIVISION - PHASE 1111
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CONSTRUCTION PURPOSES. © BOHLER ENGINEERING. 2017
N M ENTAL IMPACT MAPS
1/29/191 PMA I NCR162057
DETAIL SHEET
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