BR-0139 Wetland Restoration Plan_20230727

Wetland Restoration Plan
NC 133, River Road
Brunswick County

TIP BR-0139
WBS No. 67139.1.1

July 27, 2023

The North Carolina Department of Transportation (NCDOT) will perform on-site mitigation for
wetland impacts associated with Transportation Improvement Program (TIP) BR-0139. This site
occurs within the Right-of-Way of NC 133, River Road. The restoration and enhancement
project begins at approximately Sta. 18+62 and ends at approximately Sta. 22+50. NCDOT will
restore 0.34 acre and enhance 0.16 acre of wetlands within the existing Right-of-Way.

The 0.34 acre of wetland restoration and 0.16 acre of wetland enhancement within NCDOT
Right-of-Way will mitigate for 0.34 acre of permanent impact in wetlands due to minor widening
and raising of the roadway grade in the 0.45-mile project area (see permit drawings and impact
summary for a breakdown of the project impacts). All mitigation generated by this restoration
will only be used to offset the impacts for this project. No banking of excess mitigation is
proposed.

EXISTING CONDITIONS

The project is located in Brunswick County, approximately 10 miles south of Belville, NC near
the intersection of NC 133 and Funston Road (SR 1521) . This section on NC 133 is prone to
flooding, therefore the Department is proposing to replace the existing two 36-inch RCP and one
48-inch CMP with a new 7-span 385-foot cored slab bridge at the restoration site. The adjacent
land use is primarily comprised of forested land with some low-density housing interspersed
throughout.
The area surrounding the mitigation area contains a Tidal Freshwater Marsh community. The
dominant species of this Tidal Freshwater Marsh include Saw Grass (Cladium mariscus), Soft
Rush (Juncus effusus) and Bulrush (Typha latifolia).
PROPOSED CONDITIONS
The proposed mitigation consists of the restoration of 0.34 acre and enhancement of 0.16 acre of
Tidal Freshwater Marsh (see attached restoration figure for more details). The restoration
activities will involve removal of the existing roadway fill of NC 133, River Road. This area will
be graded to match the existing adjacent reference wetland elevation as well as ripped and disked
if necessary. The enhancement will include grading of existing wetlands to the adjacent natural
and undisturbed wetland elevation. The proposed restoration will improve natural flow patterns
of the wetland system, improve water quality, and improve aquatic/wildlife habitat and passage.
The proposed restoration and enhancement within NCDOT Right-of-Way will be placed on the
Natural Environment Unit’s Mitigation Geo-Database for protection perpetuity.

The wetland restoration areas shall be fully contained by silt fence until all unsuitable fill
material has been removed and the restoration areas have been restored to the approximate
natural elevation of the adjacent, similar undisturbed wetlands and stabilized with appropriate
wetland vegetation.

The Natural Environment Unit shall be contacted to provide construction assistance to ensure
that the mitigation area is constructed appropriately.

VEGETATION PLANTING
Following the successful completion of site grading and stabilization, the restoration and
enhancement areas as well as the temporary construction and utility easement areas will be
planted with species found in Tidal Freshwater Marsh communities including: Saw Grass
(Cladium jamaicense), Soft Rush (Juncus Effusus), Duck Potato (Sagittaria latifolia) and Lizards
Tail (Saururus cernuus). The restoration area directly under the bridge (0.23 acre) will not be
planted due to sunlight restrictions caused by the low bridge height.
Native grass seeding and mulching will be performed on all disturbed areas within the wetland
restoration area for stabilization purposes according to guidance and standard procedures of
NCDOT’s Roadside Environmental Unit.

MONITORING

Upon successful completion of construction, the following monitoring strategy is proposed for
the 0.34 acre restoration and 0.16 acre enhancement within the NCDOT Right-of-Way. NCDOT
will document monitoring activities on the site in an annual report distributed to the regulatory
agencies. The vegetation component of the wetland site will be deemed successful if the targeted
wetland herbaceous species survives and has an average of 75 percent vegetation cover, not
including any invasive species.

HYDROLOGIC MONITORING

No specific hydrological monitoring is proposed for the wetland restoration area. The target
elevation will be based on the reference wetland and verified during construction. Constructing
the site at the adjacent wetland elevation will ensure the hydrology in the restored area is like the
hydrology in the reference area.

VEGETATION SUCCESS CRITERIA

NCDOT shall monitor the restoration site by visual observation and photo points for survival and
aerial cover of vegetation. NCDOT shall monitor the site for a minimum of three years or until
the site is deemed successful. Monitoring will be initiated upon completion of the planting.

4
8
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M
P
WOODED
DB 1347 PG 728
MC 118 PG 36-40
EXISTING CONSERVATION EASEMENT
WOODED
WOODEDWOODED
WOODED
EIP EIP EIP
GUY
GUY
MB18" HDPE
60" WW
60" WW
S
OIL
BOX
CODE
PANEL
SOLAR
MB
GATE
CABLE
60" WW
GATEMTL
BOX
DROP
EIP
NC 133 - RIVER RD - 24.5' BST
EXISTING R/W
EXISTING R/W
(SWAMP/MARSH AREA)
SANDHILL CREEK/POND
(SWAMP/MARSH AREA)
SANDHILL CREEK/POND
(SWAMP/MARSH AREA)
SANDHILL CREEK/POND (SWAMP/MARSH AREA)
SANDHILL CREEK/POND
(SWAMP/MARSH AREA)
SANDHILL CREEK/POND
3
6
" R
C
P
3
6
"
R
C
P
12" CMP
ORTON PLANTATION HOLDINGS, LLC
ORTON PLANTATION HOLDINGS, LLC
JOSEPH & KIMBERLY NEWMAN
ORTON PLANTATION HOLDINGS, LLC
G
R
WOODED WOODED
WOODED
INV=3.26'
INV=3.35'
INV=3.92'
INV=3.77'
THH
T
T
Atlantic Telephone Membership Corporation, 2 ", CONDUIT, F.O.
G
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B
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ORTON PLANTATION HOLDINGS, LLC
NC 133 - RIVER RD - 24.5' BST
T
H H
-L- POT Sta. 12+50.00
BEGIN PROJECT HC HC HAND CLEARING IN 404 WETLANDS (NON-GRUBBING)
HC HC HAND CLEARING IN CAMA / 404 WETLANDS (NON-GRUBBING)
HYDRAULICSROADWAY DESIGN
ENGINEER ENGINEER
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
4BR-0139
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NC License No: C-1554
Raleigh, North Carolina 27609
343 E. Six Forks Road, Suite 200
HNTB NORTH CAROLINA, P.C.
N
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CAMA / 404 WETLANDS
404 WETLANDS
Duke Duke
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Atlantic Telephone Membership Corporation, 2 ", CONDUIT, F.O.
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ROCK PLATING
ROCK PLATING
ROCK PLATING
PLATING
ROCK
( Not to Scale)
d
DETAIL DP1
GROUND
NATURAL
w
DECK DRAIN DISSIPATER PAD
GROUND
NATURAL
NOTE: PAD TO BE CENTERED UNDER DECK DRAIN
w
w
VIEW
PLAN
VIEW
PROFILE
2.8 TONS CLASS "I' Rip-Rap
5.0 SY GEOTEXTILE
2.0 CY EXCAVATIONd=1.5 FT
w=6 FT
CLASS 'I' Rip-Rap
Type of Liner=
-L- STA. 19+64 LT / RT
-L- STA. 19+79 LT / RT
-L- STA. 19+94 LT / RT
-L- STA. 20+09 LT / RT
-L- STA. 20+24 LT / RT
-L- STA. 20+39 LT / RT
-L- STA. 20+54 LT / RT
-L- STA. 20+69 LT / RT
-L- STA. 20+99 LT / RT
-L- STA. 21+14 LT / RT
-L- STA. 21+29 LT / RT
-L- STA. 21+44 LT / RT
-L- STA. 21+59 LT / RT
-L- STA. 21+89 LT / RT
-L- STA. 22+04 LT / RT
-L- STA. 22+19 LT / RT
-L- STA. 22+34 LT / RT
F F
CC
C F F
FF
C
C
C
C
C
C
C C
C C
C C C C
C
C
SHEET 2 OF 14
PERMIT DRAWING
REMOVEREMOVE
15" RCP-IV
15" RCP-IV
SEE DETAIL SLV1
SPECIAL LAT. 'V' DITCH
SEE DETAIL VBD1
BASE DITCH
VAR. WIDTH LAT.
SEE DETAIL SLV1
SPECIAL LAT. 'V' DITCH
SEE DETAIL SLV2
SPECIAL LAT. 'V' DITCH
SEE DETAIL VBD1
BASE DITCH
VAR. WIDTH LAT.
SEE DETAIL SLV1
SPECIAL LAT. 'V' DITCH
SEE DETAIL SLV1
SPECIAL LAT. 'V' DITCH
SEE DETAIL VBD1
VAR. WIDTH LAT. BASE DITCH
D
3:
1
( Not to Scale)
SPECIAL LATERAL 'V' DITCH
DETAIL SLV2
Min. D= 1.0 Ft.
Ground
Natural Slope
Ditch
Front
SEE DETAIL SLV2
SPECIAL LAT. 'V' DITCH SEE DETAIL SLV2
SPECIAL LAT. 'V' DITCH
3:1
D
3:
1
( Not to Scale)
SPECIAL LATERAL 'V' DITCH
DETAIL SLV1
Min. D= 1.0 Ft.
Ground
Natural Slope
Ditch
Front
4:1
18"
FROM -L- STA. 25+50 TO STA. 26+50 LT
FROM -L- STA. 24+50 TO STA. 26+50 RT
FROM -L- STA. 13+00 TO STA. 17+00 LT
FROM -L- STA. 12+00 TO STA. 15+00 RT
REMOVE
3:
1 D
B
( Not to Scale)
VAR. WIDTH LATERAL BASE DITCH
Flatter3:1 or
FROM -L- STA. 23+35 TO STA. 24+00 RT
FROM -L- STA. 17+50 TO STA. 18+50 LT
FROM -L- STA. 17+00 TO STA. 17+85 RT
DETAIL VBD1
B= 0 to 5 Ft.
Min. D= 0 to 1.0 Ft.
Ground
Natural
Slope
Ditch
Front
FROM -L- STA. 24+00 TO STA. 24+50 RT
FROM -L- STA. 23+35 TO STA. 25+50 LT
FROM -L- STA. 15+00 TO STA. 17+00 RT
FROM -L- STA. 17+00 TO STA. 17+50 LT
SEE DETAIL SLV2
SPECIAL LAT. 'V' DITCH
REMOVE
REMOVE
CAMA WETLANDS
FOR RECONNECTION OF
LIMITS OF BRIDGE EXCAVATION
OF EX. 36" RCP AND EX. 48" CMP
SANDHILL CREEK. OBSERVED CHANNEL BEGINS DOWNSTREAM
THERE IS NO DEFINED CHANNEL UPSTREAM OF NC133 FOR
FROM STA. -L- 21+89 TO STA. 22+34 LT/RT.
FROM STA. -L- 20+99 TO STA. 21+59 LT/RT.
FROM STA. -L- 19+64 TO STA. 20+69 LT/RT.
8" x 6" SLOTS ON 15' CENTERS
DECK DRAINS REQUIRED
FROM STA. -L- 21+89 TO STA. 22+34 LT/RT.
FROM STA. -L- 20+99 TO STA. 21+59 LT/RT.
FROM STA. -L- 19+64 TO STA. 20+69 LT/RT.
8" x 6" SLOTS ON 15' CENTERS
15" RCP-IV
15" RCP-IV
SEE DETAIL DP1
(MULTIPLE LOCATIONS)
DECK DRAIN DISSIPATOR PAD
15"
WETLAND & STREAM IMPACTS
W1
F
LEGEND
F
W3
SITE 1
F F
FILL IN 404 WETLANDS
E E EXCAVATION IN 404 WETLANDS
MECHANIZED CLEARING IN CAMA / 404 WETLANDS*
*
*
FILL IN CAMA / 404 WETLANDS
E E EXCAVATION IN CAMA / 404 WETLANDS
MECHANIZED CLEARING IN 404 WETLANDS*
*
*
HAND CLEARING IN 404 WETLANDSM = 0.013 Ac / 570 SF
HAND CLEARING IN CAMA / 404 WETLANDS = 0.032 Ac / 1399 SF
MECHANIZED CLEARING IN 404 WETLANDS = 0.009 Ac / 390 SF
EXCAVATION IN CAMA / 404 WETLAND = 0.030 Ac / 1304 SF
EXCAVATION IN 404 WETLAND = 0.025 Ac / 1086 SF
FILL IN 404 WETLANDS = 0.011 Ac / 474 SF
HAND CLEARING IN 404 WETLANDS = 0.005 Ac / 203 SF
HAND CLEARING IN CAMA / 404 WETLANDS = 0.041 Ac / 1789 SF
MECHANIZED CLEARING IN 404 WETLANDS = 0.012 Ac / 509 SF
EXCAVATION IN CAMA / 404 WETLANDS = 0.094 Ac / 4098 SF
EXCAVATION IN 404 WETLANDS = 0.011 Ac / 480 SF
FILL IN CAMA / 404 WETLANDS = 0.000 Ac / 3 SF
FILL IN 404 WETLANDS = 0.019 Ac / 845 SF
HCHC
HC