20090735 Ver 3_Update Maps_20211027

Strickland, Bev
From: Jennifer Burdette <[e-mail]>
Sent: Wednesday, October 27, 2021 9:56 AM
To: Cohn, Colleen M
Cc: Goss, Stephanie; Norton, April R CIV USARMY CESAW (USA)
Subject: RE: [External] Corbinton East ID # 20090735 Ver 3
Attachments: image004.wmz; image006.wmz; Corbinton Impact Map Set 2021-10-27.pdf; Corbinton
PCN Revised WL Impact Page.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hi All,
Colleen, Stephanie and I conducted a site visit on Monday. Thank you both for meeting so quickly. We found that I had
missed a small amount of wetland impact below the existing culvert. Permanent Wetland Impact (W3 = 40 SF, 0.001 ac)
has been added to the revised impact map set that is attached. The attached page of the PCN with the wetland impact
table has also been revised to include this impact. A revised SOA is not necessary since the original SOA was for 0.35
riparian wetland credits. My sincere apologies for this oversight.
Thanks,
Jennifer
Jennifer Burdette
Natural Resource Consultants
10212 Creedmoor Road, Raleigh, NC 27615
[e-mail] — 919.422.3605
Natural Resource
Consultants
From: Cohn, Colleen M <[e-mail]>
Sent: Tuesday, October 19, 2021 2:01 PM
To: Jennifer Burdette <[e-mail]>
Cc: Goss, Stephanie <[e-mail]>; Norton, April R CIV USARMY CESAW (USA)
<[e-mail]>
Subject: RE: [External] Corbinton East ID # 20090735 Ver 3
Hi Jennifer,
I am reviewing the application for the above referenced project, and in order to complete the review process, additional
information is required:
1. A Notice of Violation (NOV-2009-PC-0395) is associated with this project. DWR deems that a site visit is
warranted. Please contact Colleen Cohn at 919-791-4258 or [e-mail] to set up a site visit. [15A
NCAC 02H .0502(e)]
Have a wonderful day!
1

Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Jennifer Burdette [mailto:[e-mail]]
Sent: Friday, October 1, 2021 8:19 AM
To: Cohn, Colleen M <[e-mail]>
Subject: [External] Corbinton East ID # 20090735 Ver 3
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hi Colleen,
This project has a lot of moving parts, please let me know if you have any questions about the application.
Thanks,
Jennifer
Jennifer Burdette
Natural Resource Consultants
10212 Creedmoor Road, Raleigh, NC 27615
[e-mail] — 919.422.3605
Natural Resource
Consultants
2

M:\Projects\EYC\EYC-20000\04-Production\Engineering\Exhibits\Impact Maps\EYC20000-IM1.dwg, 10/27/2021 9:12:41 AM, Tyler Probst
" I
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STORMWATER ACCESS
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7
PROJECT BOUNDARY
7
0
EXISTING PARCELS
7
GRAPHIC SCALE
75
150
1 inch = 75 ft.
PRELIMINARY DRAWING - NOT RELEASED FOR CONSTRUCTION
MC A DA M S
The John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293, C-187
CLIENT
EYC COMPANIES
ANDY SMITH, PLA, ASLA
1005 C ST. ANDREWS BLVD.
CHARLESTION, SC 29407
PHONE: [phone] x404
NTON EAST
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REVISIONS
NO. DATE
PLAN INFORMATION
PROJECT NO.
FILENAME
CHECKED BY
DRAWN BY
SCALE
DATE
SHEET
EYC-20000
EYC-20000-IM1
TEP
TEP
10.27.2021
OVERALL
IMPACTS MAP
1 OF 3

BUFFER 1M
ZONE 1 -P0
ZONE 2 T
Pf ,0POSE
i \ CUL
I S
\,
20'x2
_\
EXISTING \
WETLANDS
ACT B2
AL.= 1,512.
AL = 2,185
EQUALIZATIO
EVT (24" DIA.)
T ),g- WETLAND
SURFACE ELEV.
EXISTING
PUMP STATION
1 I I \
IMPACT LEGEND
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PERMANENT WETLAND IMPACT
(W1=0.123 AC)
TEMPORARY STREAM IMPACT
(S1=10 LF, 86 SF, 0.002 AC)
BUFFER IMPACT B1
ZONE 1 TOTAL = 4,493 SF
ZONE 2 TOTAL = 2,497 SF
RETAINING WALL
PERMANENT STREAM IMPACT [S2]
(S2=67 LF, 544 SF, 0.012 AC)
30 LF 48" HDPE CULVERT
TO BE REMOVED
RETAINING WALL
PERMANENT WETLAND IMPACT
(W3=40 SF, 0.001 AC)
PROPOSED 62 LF 84" CIRCULAR
BORE PIT CULVERTS
(WETLAND 4
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SHEET 2 OF 3
BUFFER IMPACT B3
ZONE 2 TOTAL = 255 SF
PROPOSED VELOCITY DISSIPATER
POOL
PERMANENT STREAM IMPACT (NO LOSS)
(S3=24 LF, 121 SF, 0.003 AC)
TEMPORARY WETLAND IMPACTS
(W2=1,406 SF, 0.032 AC)
PERMANENT STREAM IMPROVEMENT
(S4=200 LF, 821 SF, 0.032 AC)
BUFFER IMPACT B4
ZONE 1 TOTAL = 8,611 SF
PROPOSED RIFFLE
PROPOSED LOG SILL
0
PROPOSED LIMITS OF GRADING
EXISTING TOP OF
BANK
GRAPHIC SCALE
20 40
80
1 inch = 40 ft.
///A
ZONE 1 BUFFER IMPACT
ZONE 2 BUFFER IMPACT
TEMPORARY STREAM IMPACT
[S1]
M:\Projects\EYC\EYC-20000\04-Production\Engineering\Exhibits\Impact Maps \EYC20000-IM1. wg, 10/27/20219:12:44 AM, Tyler Probst
PERMANENT WETLAND IMPACT
TEMPORARY WETLAND IMPACT
PERMANENT STREAM IMPROVEMENT
[S4]
PERMANENT STREAM IMPACT — CULVERT
[S2]
PERMANENT —NO PERMANENT LOSS
STREAM IMPACT — RIPRAP
[S3]
MCADAMS
The John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293, C-187
www.mcadamsco.com
CORBINTON EAST
IMPACT AREA 1
718USHWY70E
HILLSBOROUGH, NORTH CAROLINA
PLAN INFORMATION
PROJECT NO.
FILENAME
CHECKED BY
DRAWN BY
SCALE
DATE
EYC-20000
EYC20000-I M 1
TEP
TEP
1"=40'
10.27.2021

d
GARHIC SCALE
0 10 "20
1 inch = 20 ft.
540
404
4
4
/IT\I � �\ I u
540
530
101
LF TOTAL STREAM IMPACT
_
li
10 LF TEMPORARY
STREAM
IMPACT
67 LF
PERMANENT
FROM CULVERT
IMPACT
24 LF PERMANENT
NO -LOSS STREAM
4
IMPACT
200 LF PERMANENTS
H
H
I.
STREAM
IMPROVEMENT
0
FINISHED
GRADE
P
B
HEADWALL
ENDWALL
530
520
MIDD
(2)
CULVERTS
84" DIA
RCP PIPE
PIPE
INV.
BTM
(BUF
�
— —
`--
_
�'
84"
CULVERT
BURIED
DIA RCP
(61
1 FT.
PIPE
LF) TO
TO ALLOW
BE
FOR
PASSAGE
AQUATIC
LIFE
—
____—
-
TEMPORARY
DAM
CHANNEL
SHOWN)
COFFER
AND DIVERSION
(NOT
EXISTING
GRADE
OUTSIDE
PIPE
INV ELEV.
84" DIA
CULVERTS
519
RCP
27
— —
—�
\
BTM ELEV.
518.27
520
515
—
'
— _
24 IN.
RAP DISSIPATOR
THICK RIP
OUTSIDE
PIPE CULVERTS
84" DIA
RCP
�—
' — _
_
_ _
_
'
— `\
PAD TO BE
INSTALLED FLUSH
WITH EXISTING
GRADE
—INV ELEV. 520.58
BTM ELEV. 519.58
--_
—
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All4'
4.
MIDDLE 84" DIA RCP PIPE
CULVERT
INV ELEV. 519.58
ELEV. 518.58
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(BURIED '
4+36.52
5+00
M:\Projects\EYC\EYC-20000\04-Production\Engineering\Exhibits\Impact Maps\EYC20000-IM1.dwg, 10/27/2021 9:12:50 AM, Tyler Probst
5+98.24
SHEET 3 OF 3
UTSIDE 84" DIA RCP
IPE CULVERTS
NV ELEV. 519.27
TM ELEV. 518.27
LE 84" DIA RCP
CULVERT
=LEV. 519.58
ELEV. 518.58
IED 1 FT)
OUTSIDE 84" DIA RCP
PIPE CULVERTS
INV ELEV. 519.27 532
BTM ELEV. 518.27
540
538
536
534
532
530
528
526
524
522
520
518
516
20 10 0 10
MIDDLE PIPE
UPSTREAM SECTION
d
4
9
r FINISHED
GRADE
OL
EXISTING
GRADE
540
538
536
534
20
" DIA RCP PIPE
518.27
517.27
FT)
530
528
526
524
522
518
GRADE
RIME
IMEIN
=EN
MrAME
VAMI
EMMA
MEM
EXISTING
GRADE
516
20 10 0 10
MIDDLE PIPE
DOWNSTREAM SECTION
d
a
540
538
536
534
532
530
528
526
524
522
520
518
516
540
538
536
534
532
530
528
526
524
522
520
518
516
d
d
MCADAMS
The John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293, C-187
www.mcadamsco.com
CORBINTON EAST
IMPACT AREA 1 CROSS SECTIONS
718 US HWY 70 E
HILLSBOROUGH, NORTH CAROLINA
PLAN INFORMATION
PROJECT NO.
FILENAME
CHECKED BY
DRAWN BY
SCALE
DATE
EYC-20000
EYC20000-I M 1
TEP
TEP
1"=40'
10.27.2021

If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
"W." will be used in the table below to represent the word "wetland".
2a. Site #*(?)
2a1 Reason*(?)
2b. Impact type*(?)
2c. Type of W.*
2d. W. name*
2e. Forested*
2f. Type of
Jurisdicition * (?)
2g. Impact
area *
W1
Fill
P
Non -Tidal Freshwater Marsh
W2
No
Both
0.123
(acres)
W2
VV3
Excavation
Fill
T
P
Non -Tidal Freshwater Marsh
Headwater Wetland
W2
W4
No
No
Both
Both
0.032
0.001 (acres)
2g. Total Temporary Wetland Impact
0.032
2g. Total Permanent Wetland Impact
0.124
2g. Total Wetland Impact
0.156
2i. Comments:
For 0.124 ac of permanent wetland impact at a mitigation ratio of 2:1, 0.25 riparian wetland credits will be required. An SOA for 0.35 wetland credits was included in the original submittal. There
was 0.020 ac of permanent wetland impact associated with the first phase of this development. If approved, the cumulative permanent wetland impact for the project would be 0.144 ac.
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites
impacted.
"S." will be used in the table below to represent the word "stream".
3a. Reason for impact*(?)
3b.lmpact type*
3c. Type of impact*
3d. S. name*
3e. Stream Type*
(?)
3f. Type of
Jurisdiction*
3g. S. width*
3h. Impact
length*
S1
Road Crossing 1
Temporary
Other
IJfto Eno River(S1)
Perennial
Both
9
Average (feet)
10
(linear feet)
S2
Road Crossing 1
Permanent
Culvert
UT to Eno River (S1)
Perennial
Both
8
Average (feet)
67
(linear feet)
S3
Road Crossing 1
Permanent
Rip Rap Fill
UT to Eno River (S1)
Perennial
Both
5
Average (feet)
24
(linear feet)
S4
Stream Enhancement
Permanent
Bank Stabilization
UT to Eno River (S1)
Perennial
Both
4
Average (feet)
200
(linear feet)
** All Perennial or Intermittent streams must be verified by DWR or delegated local government.
3i. Total jurisdictional ditch impact in square feet:
0
3i. Total permanent stream impacts:
291
3i. Total temporary stream impacts:
10
3i. Total stream and ditch impacts:
301
3j. Comments:
Of the 86 If of permanent stream impact from road widening in the first phase of the project, 36 If was for the culvert extension and 50 If was for the
riprap dissipator as shown on the attached impact inset from the original application at the end of the application. A stream channel has formed
through the riprap pad as shown in the in the photograph provided in AppendixA attached at the end of the application. Therefore, the riprap portion
of the impact did not result in a loss of stream. The permanent stream loss from the culvert extension completed previously was 294 sf.
Using natural channel design, the permanent stream impact to 200 If (S4) will enhance stream function and will not result in a loss of stream. The
riprap velocity dissipator pool will be embedded in the channel to maintain channel dimensions. Therefore, this permanent stream impact of 24 If (S3)
will also not result in a loss of stream.
Permanent stream impact from installation of the culvert for the road crossing will result in 67 If and 544 sf (S2). If approved, cumulative stream loss
from the project would total 838 sf (0.019 ac).
Other = construction access
rE. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:*