HomeMy WebLinkAbout20191628 Ver 3_DWRNo_20191268_Buffer Impact Update Package_20220602 .'000
N*M20A./�
July 8, 2020
Ref: 39080.00
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699
Re: Mingo Creek Buffer Impacts Updated Permit Drawings DWR Number 20191268
Rob Ridings,
The Town of Knightdale received a 401 Water Quality Certification for unavoidable impacts associated
with the installation of the Mingo Creek Greenway, TIP Number: C-5604HA. During the NC Division of
Environmental Quality sediment and erosion control permitting review a few changes were made to the
Neuse River riparian buffer impacts, there were no changes to stream or wetland impacts. These changes
were made based on shifting easement lines and adjusting the limits of disturbance to those new limits.
The overall impact amount decreased in Zones 1 and 2. Table 1 demonstrates the changes by Site and
Zone, with red numbers showing increases and green numbers decreases for specific sites and zones.
Table 1 Riparian Buffer Impacts Differences by Site and Zone
Site Original Original Original Revised Revised Revised
Number Zone 1 Zone 2 Total Zone 1 Zone 2 Total Impact
Impact Impact Impact Impact Impact
1 6144 4722 10866 6359 4834 11193
2 2113 2624 4737 2095 2624 4719
3 3545 1950 5495 2581 1368 3949
4 7314 5960 13274 7946 5943 13889
5 4302 5217 9519 3441 5432 8873
6 3005 4790 7795 2737 4547 7284
7 1915 5117 7032 1864 4926 6790
Totals 28338 30380 58718 27023 29674 56697
Venture 1
940 Main Campus Drive,Suite 500
Engineers I Scientists I Planners I Designers Raleigh,North Carolina 27606
P 919.829.0328
F 919.833.0034
Division of Water Resources
Ref: 39080.00
July 8,2020
Page 2 vhb
The final difference for Zone 1 was a decrease of 1,315 sq.ft. of impact and for Zone 2 a decrease of 706
sq.ft. of impact. There were no changes to the linear footage or acreage impacts for streams or wetlands.
The updated buffer permit drawings are attached. Please contact me if you have any questions or need
additional information.
Sincerely,
VHB Engineering NC, P.C.
g, /�—�
Heather Smith, LSS
Senior Environmental Scientist
hsmith@vhb.com
CC: Michael Repsch, PE
\\gbldata\projects\Raleigh\39080.00 MingoCreek Grnwy\EEData\NR\Permitting\Buffer
Impact Update Cover Letter.docx-NoPane.docx
BTAS6 8TA'1'8 P80J8C1'88P888NCB NO. 9H88T
O NO.
P
N.C. C-5604HA 1
TO)" OF KIN[IGHTDALE
STASB P801.N0. P.A.PROI.N0. D88CgVSRIH
Lock rt
°
264 b Ele ' z64 PUBLIC WORKS DEPARTMENT
BUFFER DRAWING
,�. SHEET 1 OF 6
h ry�
B GIN ,
PR JECT i 0 tg 6a R ert n t
`C 0
MINGO CREEK
GREENWAY EXTENSION _
e � N
35 N n Q
a �N
Q7
_ BILL SUMMERS JAMES ROBERSON °
z�
TOWN MANAGER MAYOR
64
VICINITY MAP PROJECT LOCATION BUFFER IMPACTS PERMIT
7,0
$ owe 9
g —MKN— KN�H�
BEGIN CONSTRUCTION a
—L1 R— STA. 14+34.42 9
5 6 : Q SITE 7 O
M/ EK PARL7—
j s �l
SITE 4 SITE 6 �6
— SITE 5
SITE 3
SITE 1
SITE 2
THIS PROJECT IS WITHIN THE MUNICIPAL
BOUNDARIES OF THE TOWN OF KNIGHTDALE.
CLEARING ON THIS PROJECT SHALL BE PERFORMED
TO THE LIMITS ESTABLISHED BY METHOD II.
THIS PROJECT IS WITHIN THE NEUSE RIVER BASIN
0 AND IS SUBJECT TO RIPARIAN BUFFER
REQUIREMENTS.
ALL CONSTRUCTION TO BE IN ACCORDANCE WITH END CONSTRUCTION
ALL TOWN OF KNIGHTDALE AND/OR NCDOT —1-6— STA. 94+13.60
STANDARDS AND SPECIFICATIONS.
Prepared by: PROJECT LENGTH
LENGTH OF ASPHALT TRAIL = 1.08 MILES
VHB Engineering NC,P.C.(C-3705) LENGTH OF CONCRETE TRAIL = 0.17 MILES
940 Main Campus Drive,Suite 500
Raleigh,NC 27606 LENGTH OF BOARDWALK = 0.04 MILES
TOTAL LENGTH OF PROJECT = 1.29 MILES
awa�.rMa„iaa.
This n desig has been reviewM by We Eagweer for the]'own ofA ghWa aadto the bestofmy knowledge and belief,it
GRAPHICSCALES —frro,w 6e�i---blished is fe Soadard Specifications afore Tawa of Kaightdale.
dy: Dee:
300 150 0 300 600 Tow Eag agar
These plans ere approvM by the T ofK ghtdale and serve as coaswcgoa pleas for-project.
PLANS By: Date
Adadwstretor
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59 60 • • • 66 69 1 1
PROJECT REFERENCE NO. SHEET NO.
m
C-5604HA 1 9
IRW BUFFER D RAW I N G ROADWAY DESIGN SHEET NO. HYDRAULICS
xxxxx ALLOWABLE IMPACTS Z E 1 SHEET 5 OF 6 ENGINEER ENGINEER
10
ALLOWABLE IMPACTS ZONE 2
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DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
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20"OAK BB 2U1 �tgSr'r'S co ww111 S. lanni"at
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CLASS B RIP RAP Q � Durhemp9o948C4e�8o4148 27701
EST.3 TONS Z INC License V-1301
EST.11 SY GEOTEXTILE saa` ENGINEERING
PAD LENGTH=8'
WIDTH AT PIPE=4'
WIDTH AT END=12' \
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BUFFER IMPACTS SUMMARY
IMPACT BUFFER
TYPE ALLOWABLE MITIGABLE REPLACEMENT
ROAD PARALLEL ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2
SITE NO. STRUCTURE SIZE/TYPE STATION (MAP ID) CROSSING BRIDGE IMPACT (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft)
1 MULTI-USE TRAIL FILL -L1 R-STA. 16+81 TO X 6359 4834 11193
STA.22+30
2 MULTI-USE TRAIL FILL -L1 R-STA.23+46 TO X 2095 2624 4719
STA.27+08
3 66"RCP -L1 R-STA.29+18 TO X 2581 1368 3949
STA.31+23 RT.
4 BOARDWALK -L4-STA.61+26 TO STA. X X 7946 5943 13889
65+97
5 MULTI-USE TRAIL FILL -L4-STA.66+04 TO STA. X 3441 5432 8873
69+00
6 MULTI-USE TRAIL FILL,30" -L4-STA.69+00 TO STA. X 2737 4547 7284
HDPE 71+70
7 MULTI-USE TRAIL FILL,30" -L4-STA.71+70 TO STA. X 1864 4926 6790
HDPE 74+12
TOTAL: 27023 29674 56697
MINGO CREEK GREENWAY
WAKE COUNTY
PROJECT: C-5604HA
7/6/2020
SHEET 6 OF 6
Rev.May 2006