20200610 Ver 1_Impact Sheets_20200623

Strickland, Bev
From: Lauren Norris -Heflin <[e-mail]>
Sent: Tuesday, June 23, 2020 6:47 AM
To: Dailey, Samantha J CIV USARMY CESAW (USA); Goss, Stephanie
Cc: Kate Hefner
Subject: [External] RE: SAW-2017-02177 Silverstone (DWR ID 20200610)
Attachments: Silverstone -Impact Sheets 06.22.2020.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as
an attachment to [e-mail]<mailto:[e-mail]>
Good morning Sam and Stephanie,
Per the request of the USFWS, the site plans have been adjusted to better slow the velocity of flow through
the culverts at the three proposed road crossings.
Our stormwater engineering team reviewed the proposed crossings and made the below plan adjustments to
achieve this. Total permanent impacts have not changed, but an additional 88-ft of permanent, no loss stream
impact associated with dissipator pads has been added. Updated Impact Plans reflecting the adjustments are
attached.
Impact #1- reduced slope from 5.24% to 5.19%; proposed dual 48" RCPs rather than one; culvert outfall
designed with 27-ft of energy dissipator pad as permanent, no loss impact
Impact #2A - reduced slope from 2.13% to 2.10%; proposed dual RCPs of 48" and 42" rather than one 42"
RCP; culvert outfall designed with 28-ft of energy dissipator pad as permanent, no loss impact
Impact #3A - increased proposed RCP from 36" to 48"; culvert outfall designed with 27-ft of energy
dissipator pad as permanent, no loss impact
Thank you,
Lauren Norris -Heflin
Senior Environmental Scientist
Office: 919.866.4943 1 Cell: 919.607.1723
-----Original Message -----
From: Dailey, Samantha J CIV USARMY CESAW (USA) <[e-mail]>
Sent: Wednesday, June 3, 2020 3:30 PM
To: Lauren Norris -Heflin <[e-mail]>
Subject: RE: SAW-2017-02177 Silverstone
I would appreciate that!! Thank you.
1

Samantha Dailey
Regulatory Project Manager
U.S. Army Corps of Engineers
Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
[phone], Ext. 22
[e-mail]
-----Original Message -----
From: Lauren Norris -Heflin <[e-mail]>
Sent: Wednesday, June 03, 2020 3:28 PM
To: Dailey, Samantha J CIV USARMY CESAW (USA) <[e-mail]>
Subject: [Non-DoD Source] RE: SAW-2017-02177 Silverstone
Thanks for getting this out so quickly!
I forwarded this on and just had a call with the client and engineering team. They're going to look into the
logistics of if they can bring in either request from the USFWS.
I'll reach out if they have an ideas on making it work. We'll probably want to run it by you before revising the
plans.
Best,
Lauren Norris -Heflin
Senior Environmental Scientist
Office: 919.866.4943 1 Cell: 919.607.1723
-----Original Message -----
From: Dailey, Samantha J CIV USARMY CESAW (USA) <[e-mail]>
Sent: Wednesday, June 3, 2020 11:07 AM
To: Lauren Norris -Heflin <[e-mail]>
Subject: SAW-2017-02177 Silverstone
Hi Lauren,
I hope you're still doing well through all of this. The USFWS reviewed my concurrence request and provided
the following comments:
1. Two of the culverted crossings areas sloped at a very high grade. The plan drawings do not appear to show
any velocity dissipation devices. The Service recommends that the applicant be required to slow the velocity of
flow through the culverted crossings through minima lly-impactful methods, such as baffles inside the culverts.
Drop boxes may also be appropriate, depending on the location and function of the stream.
4

2. In order to avoid and minimize erosion on the project site, the Service recommends that the applicant leave
individual lots vegetated until construction on that particular lot is ready to occur.
I do ask that you provide this information to the design engineer and/or applicant. Please note that I plan to
issue the permit here in just a bit, but considering her comment/request to use velocity dissipation devises, I
will put a sentence in the verification that allows for this type of activity (simply because it is not considered a
loss). If there are any changes to the design drawings/impact lengths, please provide those so I can add the
information to our database (it will not require a new permit submittal).
Please let me know if you have any questions.
Best Regards,
Sam
Samantha Dailey
Regulatory Project Manager
U.S. Army Corps of Engineers
Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
[phone], Ext. 22
[e-mail]

C
VICINITY MAP
1" = 1000'
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-0.0 COVER SHEETNAD 83SILVERSTONE
ENVIRONMENTAL IMPACT MAPS
PANT
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POOLE RD
HW
Y

8
7
SITE
Sheet List Table
Sheet Number Sheet Title
CWI-0.0 COVER SHEET
CWI-1.0 OVERALL EXISTING CONDITIONS MAP
CWI-2.0 OVERALL IMPACT MAP
CWI-2.1 OVERALL STORM DRAINAGE
CWI-2.2 WETLAND AND STREAM IMPACTS TABLE
CWI-2.3 ENVIRONMENTAL IMPACT 1
CWI-2.4 IMPACT 1 - HEADWALL PROFILES
CWI-2.5 ENVIRONMENTAL IMPACT 2
CWI-2.6 IMPACT 2 - HEADWALL PROFILES
CWI-2.7 ENVIRONMENTAL IMPACT 3
CWI-2.8 IMPACT 3 - HEADWALL PROFILES
CWI-2.9 ENVIRONMENTAL IMPACT 4
CWI-2.10 ENVIRONMENTAL IMPACT 5 & 6
CWI-2.11 ENVIRONMENTAL IMPACT 7
CWI-2.12 ENVIRONMENTAL IMPACT 8 & 9
CWI-2.13 ENVIRONMENTAL IMPACT 10
OWNERS/SUBDIVIDER/DEVELOPER:
GLOBAL CITY DEVELOPMENT
CASSA KNIGHTDALE, LLC
801 BRICKELL AVE, STE 2360
MIAMI, FL 33131-4943
ENGINEER
TIMMONS GROUP
JIM CHANDLER
5410 TRINITY ROAD, STE. 102
RALEIGH, NC 27607
PIN = 1733-91-9712
FIRM MAP# 3720174300J & 3720173300J
TOTAL EXISTING TRACT ACREAGE = 158.58 AC
TOTAL WETLANDS = 16,337 SF
TOTAL STREAMS = 9,297 LF
SITE DATA
S
60009
205.95
SANITARY MANHOLE
C
C
60188
289.74
MB
C
60206
286.15
MB
60207
286.31
MB
60226
284.62
MB
60233
283.97
MB
60238
284.13
MB
T
W
T
T
12.2' x 8.2' SHED
ENCROACHES ONTO
SUBJECT PROPERTY
HODGE ROAD
VARIABLE WIDTH PUBLIC R/W
BULDING
RANCHESTER ROAD64' PUBLIC R/W BM 2012, PG 167WALL
EX. 30' SAN
SEWER ESMT
DB 12664, PG 998 DILLON LAKE DRIVE54' PUBLIC R/W BM 2013, PG 562EX. 30' SAN
SEWER ESMT
BM 2008, PG 1133
POND
ZONE 'AE'
ZONE 'A'
ZONE 'X'
ZONE 'X'
ZONE 'A'
ZONE 'X'HARDIN
H
ILL
LANE64' PUBL
IC
R
/W
BM
2008
,
PG
1130COR DRAINAGE ESMTBM 2008, PG 1130EX. 20' COR SAN
SEWER ESMT
BM 2008, PG 1130
EX. 20' COR SAN
SEWER ESMT
BM 2008, PG 1130
4.2'
TOWLER ROAD
FORMERLY
"ONE MORE ROAD"
(60' PRIVATE R/W AS
SHOWN ON BM 2005,
PG 1283)
N
E
U
S
E

R
I
V
E
R
HODGE ROAD
VARIABLE WIDTH PUBLIC R/W
EXISTING VARIABLE WIDTH
TEMPORARY CONSTRUCTION EASEMENT
(DB 8681, PG 1761)
(NCDOT PROJECT 8.1402205)
POSSOM TROT
ROAD
(UN-OPENED AS
SHOWN ON BM 2005,
PG 1283)NEUSE R
IVER
61327
286.13
MB
61328
286.27
MB
61329
286.44
MB
W T
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
50' RIPARIAN
BUFFER
WETLAND
WETLAND
WETLANDS
WETLAND
WETLAND
WETLAND
WETLAND
WETLAND
WETLAND
WETLAND
WETLAND
WETLAND
227-240
C
C
T
T
65242309.46EWD E
C
T
C
C
T T
T
30823293.25SHOTATBASE"
T
T
T
T
T
T
T
T
C
T C
T
T
T
DD
DD
W
W
EXISTING PERMANENT
SANITARY SEWER
EASEMENT
DB 17614, PG 1463
EXISTING PERMANENT
SANITARY SEWER
EASEMENT
DB 17614, PG 1463
EXISTING TEMPORARY
CONSTRUCTION ESMT
DB 17614, PG 1463
EXISTING TEMPORARY
CONSTRUCTION ESMT
DB 17614, PG 1463
KEMP DRI
V
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PANT
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R
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BOUL
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A
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D
ELLEN

D
R
I
V
E
HODGE ROADVARIABLE WIDTH PUBLIC R/W100 YR FLOOD PLAIN PER FEMA FLOOD
STUDY
20' ZONE 2 BUFFER LINE
30' ZONE 1 BUFFER LINE
LIMITS OF DISTURBANCE
LIMITS OF DISTURBANCE
LIMITS OF DISTURBANCE
LIMITS OF DISTURBANCE
LIMITS OF DISTURBANCE
20' ZONE 2 BUFFER LINE
30' ZONE 1 BUFFER LINE
LIMITS OF DISTURBANCE
EXISTING
CHESWICK
SUBDIVISION HAR
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IN
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L

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PANT
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LOD
LOD LOD LOD LOD LODLOD
LOD
LOD LODLODLODLODLODLODLODLODLODLOD
LOD
LOD
LODLOD
LODLODLODLODLOD
LODLOD
LODLODL
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LOD LOD LOD LOD LODLOD LOD
LODLODLOD
LODLOD
LOD
LODLOD
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DLODLODLOD
LOD LOD LODLODLODLODLOD
LOD LODLOD
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JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICENORTH CAROLINA LICENSE NO. C-165205.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE -WAKE COUNTY - NORTH CAROLINA44872
J. MACMILLAN
J. MACMILLAN
J. CHANDLER
NOTES:
1)WETLANDS WERE DELINEATED BY S & EC AND LOCATED BY TIMMONS
GROUP SURVEY.
2)THIS SITE LIES IN ZONE X, WHICH IS ACCORDING TO FLOOD INSURANCE
RATE MAP 3720074300J AND 3720173300J, WITH AN EFFECTIVE DATE OF
MAY 2, 2006. A PORTION OF THE SITE LIES WITHIN ZONE AE, WITHIN 100-YEAR
FLOODPLAIN WITH BASE ELEVATIONS OF 174-FT ABOVE MEAN SEA LEVEL.
3)ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH TOWN OF KNIGHTDALE
AND NCDOT STANDARDS AND SPECIFICATIONS.
4)BOUNDARY TAKEN FROM SURVEY BY TIMMONS GROUP.
5)TOPOGRAPHIC DATA TAKEN FROM COMBINATION OF SURVEY BY TIMMONS
GROUP AND GIS.
6)TOTAL WETLANDS = 16,337 SF
7)TOTAL STREAMS = 9,297 LF NAD 830
SCALE 1"=200'
400'200'
1" = 200'
CWI-1.0 OVERALL EXISTING CONDITIONS MAP
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120'39'40'40'40'40'40'40'40'40'40'40'40'39'120'35'40'40'40'40'40'40'40'40'40'40'40'39'
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130'53'44'44'44'44'62'20'3'134'69'62'157'94'82'166'
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169'165'60'40'60'60'70'150'22'60'60'45'46'12'13'73'73'75'0'57'73'60'60'60'150'43'60'37'150'1'19'143'
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71
78
70
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220
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314
313
316
319
318
317
321
320
324
322
328
326
330
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285
283
282
281
280
275
278
277
276
310
312
271
272
273
274
206
208
207
358
356
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218
214
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216
215
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172175176173174
331
376
377
379
359
374
329
93
88
105
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91
92
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102
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127
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121
122
126
124
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345
338
339
340
343
342
344
242
241
240
239
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243245244247246249
300301302304303
311
307309308
296
293
292
291
287
289
288
286
294
297
295
80
82
83
204
203
205
371
375
372
368
369
370
365
367
357
360
112
113
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110
111
117 116
120
114
151
152
156
154
160
155
168 171
159
157
177
165 166
161
187
170
182
189
167
181
184
185
186
180
179
169
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164
191
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193
199
198
144
150
145
149
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197
192
194
119
153
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230
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349
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350
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254 256255 257 258 260253
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381
196
123
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142
305
262
290
279
209
346
366
226
225
224
229
380
382
383
384
385
47'35'80'86'24'S
60009
205.95
SANITARY MANHOLE
C
60036
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60048
243.43
WV
60053
243.67
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C
T
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60354
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12.2' x 8.2' SHED
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200
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240
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IMPACT 3 - HEADWALL 2 PROFILE
200206217220
201
200 215220216217218219221222223224260220
24
0 243254214209
1871
9
4 199184180173180179181182
180200
171N35° 45' 31.1421" LAT
W78° 31' 19.6736" LONG
N35° 45' 38.5897" LAT
W78° 31' 14.8503" LONG
N35° 45' 40.5748" LAT
W78° 31' 24.6083" LONG
N35° 45' 34.5352" LAT
W78° 31' 30.9146" LONG
N35° 45' 30.6825" LAT
W78° 31' 37.9154" LONG
N35° 45' 31.5003" LAT
W78° 31' 57.8312" LONG
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICENORTH CAROLINA LICENSE NO. C-165205.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE -WAKE COUNTY - NORTH CAROLINA44872
J. MACMILLAN
J. MACMILLAN
J. CHANDLER
CWI-1.2
CWI-1.3
CWI-1.4CWI-1.5
CWI-1.6
CWI-1.7
CWI-1.10
CWI-1.9
CWI-1.8
NAD 830
SCALE 1"=200'
400'200'
CWI-1.1
1" = 200'
CWI-2.0 OVERALL IMPACT MAP
5
6
5
9
5
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120'39'40'40'40'40'40'40'40'40'40'40'40'39'120'35'40'40'40'40'40'40'40'40'40'40'40'39'
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290
279
209
346
366
226
225
224
229
380
382
383
384
385
47'35'80'86'24'S
60009
205.95
SANITARY MANHOLE
C
60036
245.01
LP
60048
243.43
WV
60053
243.67
MKG
C
C
T
W
60354
265.20
WELL
T
T
12.2' x 8.2' SHED
ENCROACHES ONTO
SUBJECT PROPERTY
HODGE ROAD
VARIABLE WIDTH PUBLIC R/W
BULDINGGRAVEL DR
IVE
GRAV
E
L

D
R
I
V
E
GRAV
E
L

D
R
I
V
E
GRAV
E
L

D
R
I
V
E
RANCHESTER ROAD64' PUBLIC R/W BM 2012, PG 167UV
EBWALL
DILLON LAKE DRIVE54' PUBLIC R/W BM 2013, PG 562POND
IPF
IPS
IPS
IPS
IPS
ZONE 'AE'
ZONE 'A'
ZONE 'X'
ZONE 'X'
ZONE 'A'
ZONE 'X'HARDIN
H
ILL
LANE64'
PUBL
IC
R
/W
BM
2008
,
PG
1130
4.2'
TOWLER ROAD
FORMERLY
"ONE MORE ROAD"
(60' PRIVATE R/W AS
SHOWN ON BM 2005,
PG 1283)
N
E
U
S
E

R
I
V
E
R
IPS
IPS
IPS
IPS
IPS
IPS
HODGE ROAD
VARIABLE WIDTH PUBLIC R/W
IPS
IPS
IPS
POSSOM TROT
ROAD
(UN-OPENED AS
SHOWN ON BM 2005,
PG 1283)NEUSE R
IVER
20206
269.49
B"50087
261.30
LP
W
50111
265.22
WELL
T CONCRETEDRIVE
227-240
C
C
T
T
65242309.46EWD E
C
T
C
C
T T
30823293.25SHOTATBASE"
T
T
T
T
T
T
T
T
C
T C
T
T
T
DD
DD
W
W
SPECTRU
M

D
R
I
V
E
KEMP DRI
V
EHODGE ROADVARIABLE WIDTH PUBLIC R/W2402502502502
5
0
250
250
260
260
260260260
260
270
270270270
280280280
280
280280290290300300
190190
200
200
21
0210210
210
220
220
230 230240
240
240
240
25
0
25
0
250250
250
250
260260
260
260
260
2602
7
0270270
2
7
0
2801
7
017018
0
18019
0
1901
9
0
200
21
0
220
220
2202
3
0
230
230240
240240 240240
25
0
250
250
250
1
9
0
200
200210210220
22
0
230
230240
240250
250160160160
1
6
0
170170170170170170
170180
190
200
210
220
230
2
3
0230230230
240
240240
250250250
250
260
260
180180180180180
190
200
210
220
220220230230
230
240
240240
250
250250260
270
WWWWSANS
A
N
SANSANFMFMLOD
LOD LOD LOD LOD LODLOD
LOD
LOD
LOD
LODLODLODLODLODLODLODLOD
LOD
LOD
LODLOD
LOD LODLODLODLOD
LODLOD
LODLODLODLOD LOD LOD LOD LODLOD LOD
LODLODLOD
LODLOD
LOD LODLOD
L
O
DLODLODLOD
LOD LOD LODLODLODLODLOD
LOD LODLOD
LODLOD
LOD
LOD
LOD
LOD
LOD LODLODLOD
LOD
LOD
LO
D
LO
D
LOD LODLOD
LOD
LO
D
LOD
LOD
LOD
LOD LOD
IMPACT 3 - HEADWALL 2 PROFILE
200206217220
201
200 215220216217218219221222223224260220
24
0 243254214209
1871
9
4 199184180173180179181182
180200
171N35° 45' 31.1421" LAT
W78° 31' 19.6736" LONG
N35° 45' 38.5897" LAT
W78° 31' 14.8503" LONG
N35° 45' 40.5748" LAT
W78° 31' 24.6083" LONG
N35° 45' 34.5352" LAT
W78° 31' 30.9146" LONG
N35° 45' 30.6825" LAT
W78° 31' 37.9154" LONG
N35° 45' 31.5003" LAT
W78° 31' 57.8312" LONG
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICENORTH CAROLINA LICENSE NO. C-165205.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE -WAKE COUNTY - NORTH CAROLINA44872
J. MACMILLAN
J. MACMILLAN
J. CHANDLER
SCM 6
NAD 830
SCALE 1"=200'
400'200'
1" = 200'
CWI-2.1 OVERALL STORM DRAINAGESCM 7
SCM 9
SCM 8
SCM 4 SCM 3
SCM 1
SCM 2
SCM 5
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICENORTH CAROLINA LICENSE NO. C-165205.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE -WAKE COUNTY - NORTH CAROLINA44872
J. MACMILLAN
J. MACMILLAN
J. CHANDLER
N/A
CWI-2.2 WETLAND AND STREAM IMPACTS TABLE
12''W12''W12''W12''WSSANLODLODLOD
LODLODLOD
LOD
0+000+501+00
1+5
0
1+6
0
.
8
0
0
+
0
0
0+501+001+501+56.850+000+501+001
+
5
0
1
+
5
4
.
9
6
PERMANENT
STREAM IMPACT 1
571 SF (126 LF)
BUFFER IMPACT 1
(30' ZONE 1)
8341 SF
WETLAND IMPACT 1
1797 SF
BUFFER IMPACT 1
(20' ZONE 2)
6557 SF
LIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
TEMPORARY
STREAM IMPACT 1
86 SF (12 LF)
HEADWALL 2
WETLAND
30' ZONE 1
BUFFER LINE
20' ZONE 2
BUFFER LINE
HEADWALL 1LIMITS OF
DISTURBANCE
PERMANENT - NO
PERMANENT LOSS
STREAM IMPACT 27 LF
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
ROAD CROSSING 1 PROFILE
210
215
220
225
230
235
240
245
250
210
215
220
225
230
235
240
245
250
223.6222.1220.4216.3244.35243.73-0+25 0+00 1+00 2+00
EXISTING
GRADE
PROPOSED
GRADE
RETAINING
WALL
48 inch RCP
RETAINING
WALL
5.1
9
%

S
L
O
P
E
48 inch RCP
5.1
9
%

S
L
O
P
E
12' X 32' X 2.125'
CLASS 1 RIP RAP
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI - 1 ROADWAY IMPACT
CWI-2.3 ENVIRONMENTAL IMPACT 1NAD 83SCALE 1"=50'
100'50'0
H: 1" = 50'
V: 1" = 5'
PROFILE SCALE
0
0
50
5
1.SCHEDULE A PRECONSTRUCTION CONFERENCE WITH THE
ENVIRONMENTAL CONSULTANT, PRIOR TO BEGINNING CONSTRUCTION.
OBTAIN A LAND-DISTURBING PERMIT.
2.CONTRACTOR WILL ATTEMPT TO COORDINATE CONSTRUCTION DURING
A TWO WEEK TIMEFRAME OF DRY WEATHER.
3.SANDBAG DIKE WILL BE CONSTRUCTED ON THE UPSTREAM END WITH A
PUMP AROUND USED AS NECESSARY.
4.DE-WATER WORK AREA UTILIZING A FILTER BAG.
5.WHEN PUMP AROUND IS IN USE, THE HOSE WILL BE CONTAINED IN THE
CULVERT TO AVOID CROSSING THE ROAD. AT THE END OF EACH
WORKING DAY, SITE WILL BE CLEARED OF MEASURES TO ALLOW
STREAM WATER TO FLOW NATURALLY.
6.BEGIN CLEARING AND GRUBBING, KEEP CLEARING AND EXCAVATION OF
THE STREAM BANKS AND ED, AND APPROACH TO A MINIMUM.
7.INSTALL CULVERTS/HEADWALL AND BACKFILL PROPERLY.
8.INSTALL DISSIPATER PADS AT PIPE OUTLETS.
9.STABILIZE ALL DISTURBED AREAS BEFORE REMOVING SANDBAG DIKE
UPSTREAM. WHEN CULVERT EXTENSIONS ARE COMPLETE AND AREAS
ARE STABILIZED COMPLETELY, CALL FOR AN INSPECTION BY THE
ENVIRONMENTAL CONSULTANT.
STREAM CROSSING CONSTRUCTION SEQUENCE
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 1 - HEADWALL 1 PROFILE
215
220
225
230
235
240
245
250
215
220
225
230
235
240
245
250
238.4226.1224.1232.4236.30236.86-0+25 0+00 1+00 2+00
EXISTING
GRADE
PROPOSED
GRADE
48 inch RCP
48 inch RCP
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 1 - HEADWALL 2 PROFILE
210
215
220
225
230
235
240
245
250
210
215
220
225
230
235
240
245
250
227.0222.8220.7228.7237.10234.41234.56232.83-0+25 0+00 1+00 1+85
EXISTING
GRADE
PROPOSED
GRADE
48 inch RCP 48 inch RCP
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.4 IMPACT 1 - HEADWALL PROFILESPROFILE SCALE
0
0
50
5
V: 1" = 5'
39'
1
2
'
'W
1
2
'
'W
1
2
'
'W
12
'
'
W
12''
W
S
S
S LODLODLO
D
L
O
DLODLOD
LOD
LOD
L
O
D 0+000+501+001+43.
5
3
0+00
0+
5
0
1
+
0
0
1
+
5
0
2+002+16.53-
0
+
0
0
1
+
0
0
1
+
2
1
.
8
4
SCM
PERMANENT
STREAM IMPACT 2A
403 SF (118 LF)
BUFFER IMPACT 2A
(30' ZONE 1)
7720 SF
BUFFER IMPACT 2A
(20' ZONE 2)
5083 SF
BUFFER IMPACT 2B
(30' ZONE 1)
863 SF
BUFFER IMPACT 2B
(20' ZONE 2)
840 SF
LIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
TEMPORARY
STREAM IMPACT 1A
29 SF (10 LF)
20' ZONE
2 BUFFER
LINE
30' ZONE 1
BUFFER
LINE
HEADWALL 1
HEADWALL 2
LIMITS OF
DISTURBANCE
PERMANENT - NO
PERMANENT LOSS
STREAM IMPACT 28 LF
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
ROAD CROSSING 2 PROFILE
225
230
235
240
245
250
225
230
235
240
245
250
231.5233.3231.5246.74241.77-0+25 0+00 1+00 1+75
EXISTING
GRADE
PROPOSED
GRADE
RETAINING
WALL
48 inch RCP
42 inch RCP
12' X 32' X 2.125'
CLASS 1 RIP RAP
2.10% S
L
O
P
E
2.10% S
L
O
P
E
CWI - 2A/B ROADWAY & DRAINAGE IMPACT
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.5 ENVIRONMENTAL IMPACT 2NAD 83SCALE 1"=50'
100'50'0
H: 1" = 50'
V: 1" = 5'
PROFILE SCALE
0
0
50
5
1.SCHEDULE A PRECONSTRUCTION CONFERENCE WITH THE
ENVIRONMENTAL CONSULTANT, PRIOR TO BEGINNING CONSTRUCTION.
OBTAIN A LAND-DISTURBING PERMIT.
2.CONTRACTOR WILL ATTEMPT TO COORDINATE CONSTRUCTION DURING
A TWO WEEK TIMEFRAME OF DRY WEATHER.
3.SANDBAG DIKE WILL BE CONSTRUCTED ON THE UPSTREAM END WITH A
PUMP AROUND USED AS NECESSARY.
4.DE-WATER WORK AREA UTILIZING A FILTER BAG.
5.WHEN PUMP AROUND IS IN USE, THE HOSE WILL BE CONTAINED IN THE
CULVERT TO AVOID CROSSING THE ROAD. AT THE END OF EACH
WORKING DAY, SITE WILL BE CLEARED OF MEASURES TO ALLOW
STREAM WATER TO FLOW NATURALLY.
6.BEGIN CLEARING AND GRUBBING, KEEP CLEARING AND EXCAVATION OF
THE STREAM BANKS AND ED, AND APPROACH TO A MINIMUM.
7.INSTALL CULVERTS/HEADWALL AND BACKFILL PROPERLY.
8.INSTALL DISSIPATER PADS AT PIPE OUTLETS.
9.STABILIZE ALL DISTURBED AREAS BEFORE REMOVING SANDBAG DIKE
UPSTREAM. WHEN CULVERT EXTENSIONS ARE COMPLETE AND AREAS
ARE STABILIZED COMPLETELY, CALL FOR AN INSPECTION BY THE
ENVIRONMENTAL CONSULTANT.
STREAM CROSSING CONSTRUCTION SEQUENCE
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 2 - HEADWALL 2 PROFILE
225
230
235
240
245
250
225
230
235
240
245
250
242.3239.5234.2233.3241.9242.01239.71238.81-0+25 0+00 1+00 2+00 2+25
PROPOSED
GRADE
EXISTING
GRADE
42 inch RCP
48 inch RCP
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 2 - HEADWALL 1 PROFILE
225
230
235
240
245
250
225
230
235
240
245
250
241.7235.2236.4239.75239.13-0+50 0+00 1+00 1+50
EXISTING
GRADE
PROPOSED
GRADE
42 inch RCP
48 inch RCP
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.6 IMPACT 2 - HEADWALL PROFILESPROFILE SCALE
0
0
50
5
V: 1" = 5'
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
209
80'86'8''W
8''W
6''W12''W
1
2
'
'W
12
'
'
W
12''
W
12''W
S
LOD
LODLODLODL
O
D
L
O
D
LODL
O
D
LOD 0+000+501+001+501+64.420+000
+
5
0
1+
0
0
1+501+57.46
0
+
0
0
0
+
5
0
0+
8
7
.
0
9
0+00
1
+
0
0
1+26.06PERMANENT
STREAM IMPACT 3A
122 SF (39 LF)
BUFFER IMPACT 3A
(30' ZONE 1)
4025 SF
BUFFER IMPACT 3A
(20' ZONE 2)
4476 SF
BUFFER IMPACT 3B
(30' ZONE 1)
621 SF
BUFFER IMPACT 3B
(20' ZONE 2)
431 SF
LIMITS OF
DISTURBANCE
TEMPORARY
STREAM IMPACT 3A
16 SF (5 LF)
LIMITS OF
DISTURBANCE
WETLAND IMPACT 3A
138 SF
HEADWALL 1
HEADWALL 2
WETLAND
20' ZONE 2
BUFFER
LINE
30' ZONE 1
BUFFER
LINE
PERMANENT - NO
PERMANENT LOSS
STREAM IMPACT 27 LF
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
ROAD CROSSING 3 PROFILE
215
220
225
230
235
240
245
215
220
225
230
235
240
245
232.5230.7226.1219.6242.10240.43-0+50 0+00 1+00 2+00
EXISTING
GRADE
PROPOSED
GRADE
RETAINING
WALL
RETAINING
WALL
48 inch RCP
8.98% SLOPE
12' X 32' X 2.125'
CLASS 1 RIP RAP
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI - 3A/B ROADWAY & DRAINAGE IMPACT
CWI-2.7 ENVIRONMENTAL IMPACT 3NAD 83SCALE 1"=50'
100'50'0
H: 1" = 50'
V: 1" = 5'
PROFILE SCALE
0
0
50
5
1.SCHEDULE A PRECONSTRUCTION CONFERENCE WITH THE
ENVIRONMENTAL CONSULTANT, PRIOR TO BEGINNING CONSTRUCTION.
OBTAIN A LAND-DISTURBING PERMIT.
2.CONTRACTOR WILL ATTEMPT TO COORDINATE CONSTRUCTION DURING
A TWO WEEK TIMEFRAME OF DRY WEATHER.
3.SANDBAG DIKE WILL BE CONSTRUCTED ON THE UPSTREAM END WITH A
PUMP AROUND USED AS NECESSARY.
4.DE-WATER WORK AREA UTILIZING A FILTER BAG.
5.WHEN PUMP AROUND IS IN USE, THE HOSE WILL BE CONTAINED IN THE
CULVERT TO AVOID CROSSING THE ROAD. AT THE END OF EACH
WORKING DAY, SITE WILL BE CLEARED OF MEASURES TO ALLOW
STREAM WATER TO FLOW NATURALLY.
6.BEGIN CLEARING AND GRUBBING, KEEP CLEARING AND EXCAVATION OF
THE STREAM BANKS AND ED, AND APPROACH TO A MINIMUM.
7.INSTALL CULVERTS/HEADWALL AND BACKFILL PROPERLY.
8.INSTALL DISSIPATER PADS AT PIPE OUTLETS.
9.STABILIZE ALL DISTURBED AREAS BEFORE REMOVING SANDBAG DIKE
UPSTREAM. WHEN CULVERT EXTENSIONS ARE COMPLETE AND AREAS
ARE STABILIZED COMPLETELY, CALL FOR AN INSPECTION BY THE
ENVIRONMENTAL CONSULTANT.
STREAM CROSSING CONSTRUCTION SEQUENCE
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 3 - HEADWALL 1 PROFILE
225
230
235
240
245
250
225
230
235
240
245
250
241.5234.8238.6248.9236.13-0+25 0+00 1+00 1+50
EXISTING
GRADE
PROPOSED
GRADE
48 inch RCP
HORIZ SCALE: 1"=50'
VERT SCALE: 1"=5
IMPACT 3 - HEADWALL 2 PROFILE
215
220
225
230
235
240
245
215
220
225
230
235
240
245
PROPOSED
GRADE
EXISTING
GRADE
232.5226.9231.5236.31230.64231.97-0+50 0+00 1+00 1+50
48 inch RCP
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
IMPACT 3 - HEADWALL PROFILESV: 1" = 5'
PROFILE SCALE
0
0
50
5
CWI-2.8
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
LO
D
LOD
LOD
LOD
LOD
LOD
LODLOD214
209
SCM
BUFFER IMPACT
4A (30' ZONE 1)
842 SF
BUFFER IMPACT 4A
(20' ZONE 2)
461 SF
LIMITS OF
DISTURBANCE
BUFFER IMPACT 4B
(30' ZONE 1)
891 SF
BUFFER IMPACT 4B
(20' ZONE 2)
547 SF
LIMITS OF
DISTURBANCE
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE
SCM
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.9 ENVIRONMENTAL IMPACT 4NAD 83SCALE 1"=50'
100'50'0
CWI - 4A/B DRAINAGE IMPACT
1" = 50'
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
100
69'80'80'56'
100
190
190
200
S
SSANSANLOD
LODLOD
LODLODLOD
LODBUFFER IMPACT 5B
(30' ZONE 1)
2855 SFLIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
BUFFER IMPACT 5B
(20' ZONE 2)
875 SF
TEMPORARY
STREAM
IMPACT 5B
271 SF (45 LF)BUFFER IMPACT 5A
(20' ZONE 2)
456 SF
BUFFER IMPACT 5A
(30' ZONE 1)
630 SF
30' ZONE 1
BUFFER
LINE 20' ZONE
2 BUFFER
LINE
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE
SCM
BUFFER IMPACT 5B
(20' ZONE 2)
2167 SF
223
222
22160'70'36'
150'
125'
150'74'69'223
222COR DRAINAGE ESMTBM 2008, PG 11308''W8''W8''W8''W8''W
8''W
LODLOD
LODLODLOD
LODLODLOD LOD
LOD
BUFFER IMPACT 6
(30' ZONE 1)
357 SF
BUFFER IMPACT 6
(20' ZONE 2)
416 SF
LIMITS OF
DISTURBANCE
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE
WETLAND
PERMANENT - NO
PERMANENT LOSS
STREAM IMPACT 6 LF
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.10ENVIRONMENTAL IMPACT 5 & 6NAD 83SCALE 1"=50'
100'50'0
CWI - 5A/5B DRAINAGE / SANITARY IMPACT
1" = 50'
CWI - 6 DRAINAGE IMPACT
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
80
83
81
237
239
238
8258'58'150'
74'
1
5
0
'
74'
80'60'80'60'60'53'80'53'7'80'60'60'13'44'24'71'42'3
9
'14'55'39'1
5
0
'74'81
238
80
82
83237
180 180180 180180
6''W
8''W8''W8''W8''W8''W8''W 8''W
SSSSANSANSSSSSANS
SAN
SAN
SAN LODLOD
LOD
L
O
D
LOD LOD LODLODLODLODLOD
LOD
LO
D
LOD
LOD200206220
1871
9
4
TEMPORARY
STREAM IMPACT 7B
534 SF (31 LF)
LIMITS OF
DISTURBANCE
BUFFER IMPACT 7B
(30' ZONE 1)
2293 SF
BUFFER IMPACT 7B
(30' ZONE 1)
945 SF
LIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
LIMITS OF
DISTURBANCE
BUFFER IMPACT
NON-PERPENDICULAR
CROSSING 7C
(20' ZONE 2)
638 SF
WETLAND IMPACT 7B
1029 SF
BUFFER IMPACT 7A
(20' ZONE 2)
482 SF
BUFFER IMPACT 7A
(30' ZONE 1)
676 SF
20' ZONE
2 BUFFER
LINE
30' ZONE 1
BUFFER
LINE
WETLAND
SCM
SCM
HEADWALL
HEADWALL
30'
SANITARY
SEWER
EASEMENT
BUFFER IMPACT
NON-PERPENDICULAR
CROSSING 7C
(20' ZONE 2)
2294 SF
BUFFER IMPACT
NON-PERPENDICULAR
CROSSING 7C
(20' ZONE 2)
4525 SF
BUFFER IMPACT
PERPENDICULAR
CROSSING 7B
(20' ZONE 2)
1191 SF
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.11ENVIRONMENTAL IMPACT 7NAD 83SCALE 1"=50'
100'50'0
CWI - 7A/7B/7C DRAINAGE & SANITARY IMPACT
1" = 50'
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACT
170
180
190
LODLOD
LOD
LOD
LOD
184180SCM
30' ZONE 1
BUFFER
LINE
PROPERTY
BOUNDARY
BUFFER IMPACT 8
(20' ZONE 2)
406 SF
BUFFER IMPACT 8
(30' ZONE 1)
591 SF
LIMITS OF
DISTURBANCE
20' ZONE
2 BUFFER
LINE LODLODLOD
LOD
173180179181182
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE
LIMITS OF
DISTURBANCE
BUFFER IMPACT 9
(20' ZONE 2)
428 SF
BUFFER IMPACT 9
(30' ZONE 1)
623 SF
SCM
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.12ENVIRONMENTAL IMPACT 8 & 9NAD 83SCALE 1"=50'
100'50'0
CWI - 8 DRAINAGE IMPACT
1" = 50'
CWI - 9 DRAINAGE IMPACT
PERMANENT WETLANDS - GREEN
PERMANENT - NO PERMANENT LOSS WETLANDS - YELLOW
PERMANENT STREAM - RED
TEMPORARY STREAM - BLUE
BUFFER IMPACT AREA (30' ZONE 1)
BUFFER IMPACT AREA (20' ZONE 2)
LIMITS OF DISTRUBANCE
WETLAND & STREAM IMPACT LEGEND:
LOD
PERMANENT - NO PERMANENT LOSS STREAM IMPACTSANSANSANSANFMF
MFMFM
L
O
D
LODLODLODLODLODLODL
O
D
LO
D
LODTEMPORARY
STREAM IMPACT 10A
396 SF (34 LF)
LIMITS OF
DISTURBANCE
BUFFER IMPACT 10B
(30' ZONE 1)
604 SF
BUFFER IMPACT 10A
(20' ZONE 2)
1563 SF
BUFFER IMPACT 10A
(30' ZONE 1)
2034 SF
LIMITS OF
DISTURBANCE
BUFFER IMPACT 10B
(20' ZONE 2)
403 SF
30' SANITARY
SEWER
EASEMENT
EXISTING
SANITARY
SEWER
30' ZONE 1
BUFFER
LINE
20' ZONE
2 BUFFER
LINE SCM
30'
SANITARY
SEWER
EASEMENT
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 112 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICE05.04.2020
SILVERSTONE SUBDIVISION PLANKNIGHTDALE, WAKE COUNTY, NORTH CAROLINA44872
J. MACMILLAN
J. CHANDLER
J. MACMILLAN
CWI-2.13ENVIRONMENTAL IMPACT 10NAD 83SCALE 1"=50'
100'50'0
CWI - 10A/B UTILITY & DRAINAGE IMPACT
1" = 50'