20150503 Ver 1_CAMA Application_20150514

Kimley »>Horn
April 15, 2015
Project Narrative
CAMA Major Permit Application
TIP# U -5534B
Walkway Under Heide Trask Drawbridge
Wilmington, New Hanover County
RE: TIP# U -5534B — Walkway Under Heide Trask Drawbridge
LAMA Major Permit Application Project Narrative
Project Description
The. City of Wilmington proposes to construct an 8' wide pedestrian walkway under the Heide Trask
Drawbridge in Wilmington, North Carolina. The Heide Trask Drawbridge carries US 74176
(Wrightsville Avenue) over the Atlantic Intracoastal Waterway (AIWW) and connects the City of
Wilmington to the Town of Wrightsville Beach. The proposed walkway project will be constructed
entirely within the North Carolina Department of Transportation (NCDOT) right -of -way associated with
US 74/76, and the walkway will cross beneath the Heide Trask Drawbridge between the second and
third support bents (the second span of the bridge). The eastern end of the project area begins
waterward of the mean high water line (MHW) of the AIWW, including two small coastal marsh
wetlands, and extends landward of MHW to the sandy slopes leading up to the road elevation of US
74/76, ending at the existing sidewalk on either side of US 74/76.
Proposed Work
The proposed walkway beneath the Heide Trask Drawbridge will provide safe, dedicated pedestrian
connectivity across US 74/76 (Wrightsville Avenue) connecting to the Cross City Trail, a multi -use trail
providing bicycle and pedestrian access across Wilmington. Separating bicycle and pedestrian traffic
from this busy thoroughfare will provide significant public benefit due to increased safety for
pedestrians and decreased danger and delays for vehicular traffic in the area. The proposed walkway
will also provide additional public benefit through increased recreational opportunities and improved
waterfront access with minimal environmental impacts, and the proposed walkway will meet
Americans with Disability Acts (ADA) requirements.
The proposed walkway will begin on the north side of US 74/76, tying into the existing sidewalk and
consisting of an 8' wide asphalt path outside of the 75' Area of Environmental Concern (AEC) buffer.
The paved path will continue into the AEC buffer to the 30' impervious area setback where the path
will transition to an elevated 8' -wide boardwalk constructed of drip- through Trex composite decking
and 8" timber support piles. The elevated boardwalk is proposed at 8' wide instead of the 6' wide
maximum allowed by the NC Division of Coastal Management (NCDCM) rules since the 8' width is
necessary for safe public utility as 8' is the narrowest width that allows two -way pedestrian or bicycle
traffic. The 8' width will enhance the overall public utility of this project, and will ensure the project
provides safe travel for pedestrians.
Partially within the 30' impervious area setback, the City of Wilmington proposes to construct a
covered octagonal landing to provide a rest location for Cross City Trail pedestrians and cyclists, and
to provide a public viewing deck to facilitate the enjoyment of the coastal ecosyAe(2 Eq
DCM WILMINGTON, NC
P R 7 2015
kimley horncomf 3001 -Weston. Parkway ., Cary,, NC 27513 919 677 2000

Kimley »>Horn
Page 2
from the proposed walkway. The octagonal landing extend from the will have a uniform side length of
8', and will provide 309 square feet of covered, shaded rest area beyond the 8' wide boardwalk that
crosses through the landing, with only 182 square feet of covered landing being located within the
impervious area setback zone. The octagonal landing is proposed to be covered, using cedar
shingles, in the interest or providing a safe and shaded rest location along the Cross City Trail. The
shaded area will provide a safe area for pedestrians and cyclists to rest without impeding traffic on
the walkway leading to and from the Cross City Trail. The cedar shingle covering will not concentrate
stormwater and will allow rainfall to sheet flow off the roof and onto the elevated boardwalk or the
sandy uplands adjacent to the AIWW in the project area.
The proposed elevated boardwalk will continue towards and across the MHW line from the octagonal
landing, crossing over a coastal marsh (wetland W1) and continuing beneath the existing structure of
the Heide Trask Drawbridge approach span between the second and third support bents. The
boardwalk will be elevated sufficiently such that the bottom of the decking material will be a minimum
of 3' above the substrate supporting the coastal wetland. Due to spacing requirements in the vicinity
of the existing NCDOT bridge span supports, the elevated boardwalk will utilize micropiles for support
instead of timber pilings.
The boardwalk will continue to the southwest beneath the Heide Trask approach span, crossing
above another coastal wetland (wetland W2). The boardwalk will again be elevated sufficiently that
the bottom of the decking material will remain a minimum of 3' above the substrate supporting the
coastal wetland. On the south side of the bridge, the proposed walkway will turn and slope upwards,
continuing landward from MHW out of the 30' impervious area setback zone. Once beyond the 30'
setback, the walkway will transition back to an 8' wide paved asphalt path, continuing up to US 74/76
and Airlie Road.
The project will be constructed entirely within existing NCDOT right -of -way, so calculating impervious
area resulting from the proposed project is a unique challenge, however, by applying a 20' width
along the proposed centerline of the walkway (the typical width of a multiuse path easement), the
total impervious surface area resulting from the proposed project is 27.9 %. Overall, only a minor
amount of impervious surface will be constructed by the proposed project, primarily resulting from the
asphalt spurs that tie in to existing sidewalk paths. The project will be subject to the requirements of
the North Carolina State Stormwater Permitting Program.
It is anticipated that this project will proceed with authorization from the US Army Corps of Engineers
(USAGE) General Permit No. 197800056 allowing maintenance, repair, construction, or installation of
piers, docks, and boathouses. The corresponding NCDWR Water Quality Certification No. 3883 will
also be required for the proposed project.
Overall, the proposed. project seeks to improve pedestrian safety and public utilization of this
historically disturbed area adjacent to the AIWW and US 74/76: The proposed boardwalk width of 8'
is necessary for safe public use, and is the minimum width that allows two -way traffic along the
multiuse path. Due to careful alignment selection, only minimal impacts will result to the two coastal
wetlands and jurisdictional waters of the US within the project area, solely as a result of the
placement of support pilings.
8 0Q1 Weston Parkway;,Cary, NC; 2751,3; 9,191677 2000

MATA oil w W%11111 1 1� t•
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1"IlAy 1 4 2015 It
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RECEIVED
DCM WILMINGTON, NC
A P R 17 2015

WETLAND DETERMINATION DATA FORM — Atlantic and Gulf Coastal Plain Region
Project/Site: TIP# U -55348 City/County: Wilmington /New Hanover Sampling Date: 9/11/2013
Applicant/Owner. City of Wilmington State: NC Sampling Point: W1 -UP
Investigator(s): J. Hartshorn (KHA) Section, Township, Range: Wilmington Township /W2 -UP
Landform (hillslope, terrace; etc.): Estuarine Shoreline Local relief (concave, convex, none): None Slope (%):.<I%
Subregion (LRR or MLRA): LRR T Lat: 34.218838 N Long: 77.813265 W Datum: NAD83
Soil Map Unit Name: TM - Tidal Marsh NWI classification: None
Are climatic / h drolo is conditions on the site typical for this time of year? Yes © No ❑ (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are 'Normal Circumstances' present? Yes ©No =.
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes FIT 1 No
Is the Sampled Area
Hydrlc Sol] Present? Yes No ✓ within a Wetland? Yesa No
Wetland Hydrology Present? Yes E_ No ✓
Remarks:
The uplands adjacent to W1 and W2 are sandy slopes between the Atlantic Intracoastal
Waterway and US 74/76.
HYDROLOGY
Wetland Hydrology Indicators:
Secondary
Indicators minimum of two required)
Surface Soil Cracks (B6)
Sparsely Vegetated Concave Surface (BB)
Primary Indicators (minimum of one is required: check all that aooly)
Surface Water (At) Aquatic Fauna (B13)
High Water Table (A2)
Marl Deposits (B15) (LRR U)
Drainage Patterns (1310)
Saturation (A3)
Hydrogen Sulfide Odor (Cl)
Moss Trim Lines (1516)
Water Marks (131)
Oxidized Rhizospheres along Living Roots (C3)
Dry- Season Water Table (C2)
Sediment Deposits (B2)
Presence of Reduced Iron (C4)
Crayfish Burrows (C8)
Drift Deposits (63)
Recent Iron Reduction in Tilled Soils (C6)
Saturation Visible on Aerial Imagery (C9)
Algal Mat or Crust (134)
Thin Muck Surface (C7)
Geomorphic Position (132)
Iron Deposits (135)
Other (Explain in Remarks)
Shallow Aquitard (D3)
Inundation Visible on Aerial Imagery (137)
1
1 FAC- Neutral Test (135)
Water- Stained Leaves (B9)
❑
Sphagnum moss (138) (LRR T, U)
Field Observations:
Surface Water Present? Yes _ No
Depth (inches):
Water Table Present? Yes No
_ Depth (inches): >15"
Saturation Present? Yes No
_LLL Depth (inches): >611
Wetland Hydrology
Present? Yes ❑ No
includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
The uplands adjacent to wetlands W1 and W2 are sandy slopes above the Atlantic Intracoastal
Waterway.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region — Version 2.0

VEGETATION (Four Strata) - Use scientific names of plants.
Sampling Point: W1 -UP
Absolute Dominant Indicator Dominance Test worksheet:
Tree Stratum (Plot size: 30' ) % Cover Species? Status Number of Dominant Species 1
1. none; That Are OBL, FACW, or FAC:
2
Total Number of Dominant
3.
Species Across All Strata:
4.
5.
Percent of Dominant Species
That Are OBL, FACW, or FAC:
B.
7.
Prevalence Index worksheet:
(A)
2 (B)
50016 (A/B)
8 Total % Cover of: Multiply by:
0% =Total Cover OBL species x1 =
o o o FACW species 30 x 2= 60
50 /o of total cover: ° 0 /0 20 /o of total cover: /o
0
Saolino /Shrub Stratum (Plot size: 30, ) FAC species x3=
1. raone FACU species 10 x 4 = 40
2 UPL species x5 =
3.
Column Totals: 40 (A) 100 (B)
4. Prevalence Index = WA = 2.5
5. Hydrophytic Vegetation Indicators:
1 - Rapid Test for Hydrophytic Vegetation
7.
_ 2 - Dominance Test is >50%
8. )( 3 - Prevalence Index is 53.0'
0% = Total Cover _ Problematic Hydrophytic Vegetation' (Explain)
50% of total cover: 0% 20% of total cover: 0%
Herb Stratum (Plot size. 30' )
1. Hy&ocotyle bonariensis
Z
3.
4.
5.
6.
7.
8.
9.
10.
11.
12,
30% Y FACW
'Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
height.
Sapling/Shrub.- Woody plants, excluding vines, less
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
Herb -All herbaceous (non- woody) plants, regardless
of size, and woody plants less than.3.28 ft tall.
Woody vine - All woody vines greater than 3.28 It In
height.
30% =Total Cover -
50% oft otal cover: 15% 20% of total cover: 60/0
Woody Vine Stratum (Plot size: 30' )
1, Parthenocissus quinquefblia 100/0 Y FACU
2.
3.
4.
5.
Hydrophytic
0% = Total Cover Vegetation
50% of total cover: 0% 20% of total cover. 0% Present? Yes No
Remarks: (If observed, list morphological adaptations below).
The uplands adjacent to W1 and W2 are lightly vegetated sandy slopes, primarily covered by
weedy species propagating from the maintained right -of -way.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region -Version 2.0

SOIL
on:
Sampling Paint: W1 -UP
the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type Loc Texture Remarks
0 -6" 10YR 8/1 100 % Sand
'Type: C= Concentration; D= Depletion, RM= Reduced Matrix, MS= Masked Sand Grains.
Hydrlc,Soll Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (Al)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)
Organic Bodies (A6) (LRR P, T, U)
5 cm Mucky Mineral (A7) (LRR P, T, U)
Muck Presence (A8) (LRR U)
1 cm Muck (A9) (LRR P, T)
Depleted Below Dark Surface (All)
Thick Dark Surface (Al2)
Coast Prairie Redox (A16) (MLRA 150A)
Sandy Mucky Mineral (Si) (LRR O, S)
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Stripped Matrix (S6)
_ Dark Surface (S7) (LRR P, S, T, U)
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
2Location: PL =Pore Lining, M= Matrix.
Indicators for Problematic Hydric Solls3:
Polyvalue Below Surface (S8) (LRR S, T, U) 1 cm Muck (A9) (LRR O)
Thin Dark Surface (S9) (LRR S, T, U) 2 cm Muck (A10) (LRR S)
Loamy Mucky Mineral (F1) (LRR O) Reduced Vertic (F18) (outside MLRA 150A, B)
Loamy Gleyed Matrix (F2) Piedmont Floodplain Soils_(F19) (LRR P, S, T)
Depleted Matrix (F3) Anomalous Bright Loamy Soils (F20)
Redox Dark Surface (F6) (MLRA 153B)
Depleted Dark Surface (F7) Red Parent Material (TF2)
Redox Depressions (F8) Very Shallow Dark Surface (TF12)
Marl (1`10) (LRR U) Other (Explain in Remarks)
Depleted Ochric (F11) (MLRA 151)
Iron- Manganese Masses (1`12) (LRR O; P, T) 31ndicators of hydrophytic vegetation and
Umbric Surface (1`13) (LRR P, T, U) wetland hydrology must be present,
Delta Ochric (F17) (MLRA 151) unless disturbed or problematic.
Reduced Vertic (F18) (MLRA 150A, 150B)
Piedmont Floodplain Soils (F19) (M LRA 149A)
Anomalous Bright Loamy Soils (F20) (MLRA 149A, 153C, 153D)
Hydric Soil Present? Yes il No ❑✓
Soils could not be effectively evaluated due to unconsolidated sand, however soils were bright
and dry.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region —Version 2.0

WETLAND DETERMINATION DATA FORM — Atlantic and Gulf Coastal Plain Region
Projecusite: TIP-4 U -5534B City/County: Wilmington /New Hanover Sampling Date: 9/11/2013
ApplicanvOwner: City of Wilmington State: NC Sampling Point: Wl -WET
Inves(I ator s : 1. Hartshorn (KHA ) Section, Township, Range: Wilmington Township /W 2 -WET
Landform (hillslope, terrace, etc.): Estuarine Shoreline Local relief (concave, convex, none): None Slope ( %): <1%
Subregion (LRR or MLRA): LRR T Lat: 34.218809 N Long: 77.813258 W Datum: NAD83
Soil Map Unit Name:
TM - Tidal Marsh NWI classification: E2EM1Nd
Are climatic/ h drol is conditions on the site typical for this time of year? Yes© No= (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances' present? Yes � No =.
Are. Vegetation Soil E or Hydrology naturally problematic? (if needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes ✓ _ No Is the Sampled Area
Hy, Soil Present? Yes ✓ No within a Wetland? Yesa NoJ�
Wetland Hydrology Present? Yes ZI No
Remarks:
Wetlands W1 and W2 are tidal marsh wetlands located below MHWM of the Atlantic Intracoastal
Waterway. Water is typically shallow in this area, and the wetlands are adjacent to the Heide
Trask Drawbridge approach span supports.
HYDROLOGY
Wetland Hydrology Indicators:
Secondary
Indicators (minimum of two required)
Surface Soil Cracks (B6)
Sparsely Vegetated Concave Surface (B.8)
Primary Indicators (minimum of one is required: check all that apply)
Surface Water (Al) Aquatic Fauna (B13)
High Water Table (A2)
Marl Deposits (B15) (LRR U)
Drainage Patterns (B10)
Saturation (A3) Hydrogen Sulfide Odor (C1)
Moss Trim Lines (B16)
✓
Water Marks (61)
Oxidized Rhizospheres along Living Roots (C3)
Dry- Season Water Table (C2)
Sediment Deposits (B2)
Presence of Reduced Iron (C4)
Crayfish Burrows (C8)
✓
Drift Deposits (B3)
Recent Iron Reduction in Tilled Soils (C6)
Saturation Visible on Aerial Imagery (C9)
❑
e✓
Algal Mat or Crust (84)
Iron Deposits (B5)
Inundation Visible on Aerial Imagery (137)
Water- Stained Leaves (B9)
Thin Muck Surface (C7)
Other (Explain in Remarks)
✓
❑
Geomorphic Position (D2)
Shallow Aquitard (D3)
FAC- Neutral Test (D5)
Sphagnum moss (138) (LRR T, U)
Field Observations:
Surface Water Present? Yes _ ✓ No
Depth (inches): 1-2'
Water Table Present? Yes _ No
_ Depth (inches): Surface
Saturation Present? Yes No
Depth (inches): Surface
Wetland Hydrology
Present? Yes d No
includes capillary frin e
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Wetlands W1 and W2 are tidal
marsh wetlands with permanent water surfaces. The wetlands are
on the edge of the Atlantic Intracoastal Waterway channel and subject to wave action.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region —Version 2.0

VEGETATION (Four Strata) — Use scientific names of plants. Sampling Point: W1 -WET
Absolute Dominant Indicator Dominance Test worksheet:
Tree Stratum (Plot size: 30' ) % Cover Species? Status Number of Dominant Species
1, none That Are OBL, FACW, or FAC: 2 (A)
2. Total Number of Dominant
3•1 Species Across All Strata: 2 (B)
4.
Percent of Dominant Species l00%
5. That Are OBL, FACW, or FAC: (AB)
6.
7.
Prevalence Index worksheet:
8 Total % Cover of: Multiply by:
0% =Total Cover OBL species x 1 =
0 0 o FACW species x 2=
50 /o of total cover: 0 0 /0 20 /o of total cover: /o
0
' FAC species x 3 =
Sapling/Shrub Stratum (Plot size: 30 )
1, none FACU species x 4 =
2 UPL species x 5 =
3 Column Totals: (A) (B)
4. Prevalence Index = B/A =
5. Hydrophytic Vegetation Indicators:
6. _ 1 - Rapid Test for Hydrophytic Vegetation
7. X 2 - Dominance Test is >506/o
8. 1
0% = Total Cover
50% of total cover: 0% 20% of total cover: 00/h
Herb Stratum (Plot size: 30 ) 'Indicators of hyddc soil and wetland hydrol must
1. Spartina alterniora 70% Y OBL I be present, unless disturbed or problematic. ogy
2. Salicornia SPA 20% Y
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
_ 3 - Prevalence Index is _3.0
_ Problematic Hydrophytic Vegetation' (Explain)
OBL Definitions of Four Vegetation Strata:
Tree — Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
height.
900/0 =Total Cover
50% of total cover: 45% 20% of total cover: 18%
Woody Vine Stratum (Plot size: 30' )
1, none
2.
3.
4.
Sapling /Shrub —Woody plants, excluding vines, less
than 3 in. DBH and greater than 3:28 ft (1 m) tall.
Herb — All herbaceous (non- woody) plants, regardless
of size, and woody plants less than 3:28 ft tall.
Woody vine — All woody vines greater than 3.28 ft in
height.
5.
Hydrophytic
0% =Total Cover Vegetation
50% of total cover: 0% 20% of total cover: 0% Present? Yes g No
Remarks: (If observed, list morphological adaptations below).
The coastal wetlands are permanently inundated with tidal salt water from the Atlantic
Intracoastal Waterway.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region —Version 2.0

SOIL
ribe to the depth needed to document the indicator or c
Sampling Point` W1-WET
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type Loc Texture Remarks
0 -6" 10YR 7/1 95% 10YR 4/6 S% C M Sand
'Type: C= Concentration, D= Depletion, RM= Reduced Matrix, MS= Masked Sai
Hydric Soil indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (Al)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratifled Layers (A5).
Organic Bodies (A6) (LRR P, T, U)
5 cm Mucky Mineral (A7) (LRR P, T, U)
Muck Presence (A8) (LRR U)
1 cm Muck (A9) (LRR P, T)
Depleted Below Dark Surface (A11)
Thick Dark Surface (Al2)
Coast Prairie Redox (A16) (MLRA 150A)
Sandy Mucky Mineral (S1) (LRR O, S)
Sandy Gleyed Matrix (S4)
Sandy Redox_ (S5)
Stripped Matrix (S6)
Dark Surface (S7) (LRR P, S, T, U)
trictive Layer (if observed):
Type:
Depth (Inches):
marks:
Location: PL =Pore Lining, M= Matrix.
Indicators for Problematic Hydri c Soils3:
Polyvalue Below Surface (S8) (LRR S, T, U) 1 cm Muck (A9) (LRR O)
Thin Dark Surface (S9) (LRR S, T, U) 2 cm Muck (A10) (LRR S)
Loamy Mucky Mineral (F1) (LRR O) Reduced Vertic (1`18) (outside MLRA 150A, B)
Loamy Gleyed Matrix (F2) Piedmont Floodplain Soils (1719) (LRR P, S, T)
Depleted Matrix (F3) Anomalous Bright Loamy Soils (F20)
Redox Dark Surface (F6) (MLRA 153B)
Depleted Dark Surface (F7) Red Parent Material (TF2)
Redox Depressions (F8) Very Shallow Dark Surface (TF12)
Marl (F10) (LRR U) Other (Explain in Remarks)
Depleted Ochric (Fl 1 ), (MLRA 151)
Iron- Manganese Masses (F12) (LRR O, P, T) 31ndicators of hydrophytic vegetation and
Umbric Surface (F13) (LRR P, T, U) wetland hydrology must be present,
Delta Ochric (F17) (MLRA 151) unless disturbed or problematic.
Reduced Vertic (F18) (MLRA 150A, 150B)
Piedmont Floodplain Soils (F19) (MLRA 149A)
Anomalous Bright Loamy Soils (F20) (MLRA 149A, 153C, 153D)
Hydric Soil Present? Yes No _a
Soils could not be effectively evaluated due to sand substrate within a permanently inundated
marsh wetland. The sandy soil that could be removed was low- chroma sand with redox
concentrations in the profile.
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region —Version 2.0

Pat McCrory
Governor
May 11, 2015
MEMORANDUM:
TO
a *o]17il
SUBJECT:
Applicant:
aQ=
NCDENR
North Carolina Department of Environment and Natural Resource
Karen Higgins
401 & Buffer Permitting Unit
DWR/Water Quality Permitting
IFi
r
MAY 1 4 2015
Donald R. van der Vaart
Secretary
Jonathan Howell, NC DENR -DCM Assistant Major Permits Coordinator
400 Commerce Avenue, Morehead City, NC 28557 (Courier 11- 12 -09)
CAMA Permit Application Review
City of Wilmington (Trask Bridge Walkway)
Project Location: under the Heide Trask Drawbridge (NC DOT Bridge No. 12), on US Hwy 74/76, over
the AIWW, in Wilmington, New Hanover County
Proposed Project: Applicant proposes to construct an elevated public walkway
Please indicate below your agency's position or viewpoint on the proposed project and
return this form to Jonathan Howell at the address above by June 4, 2015. If you
have any questions regarding the proposed project, contact Robb Mairs' at (910)796 -7423
when appropriate, in depth comments with supporting data is requested.
REPLY: This agency has no objection to the project as proposed.
This agency has no comment on the proposed project.
This agency approves of the project only if the recommended changes
are incorporated. See attached.
This agency objects to the project for reasons described in the attached comments.
SIGNED DATE
N.C. Division of Coastal Management
127 Cardinal Drive Ext., Wilmington, NC 28405
Phone: 910 - 796 -7215 \ FAX: 910 - 395 -3964 Internet: www.nccoastalmanagement.net
An Equal Opportunity, Affirmative Action Employer

DIVISION OF COASTAL MANAGEMENT
FIELD INVESTIGATION REPORT
I. APPLICANT'S NAME: City of Wilmington c/o Amy Beatty
PROJECT NAME' Walkway Under the Heide Trask Drawbridge (Cross, City Trail)
2. LOCATION OF PROJECT SITE: Site is located under NC DOT Bridge No. 12 (Heide Trask Drawbridge) on US HWY 74/76
adjacent to over AIWW in Wilmington, New Hanover County.
Photo Index — 2006: 22 -7424 I- L,10 -11 2000: 22.273 I- K,10 -11 1995: 22 -255 V -11
State Plane Coordinates - X: 2359016 Y: 172501
Lat:34 °13'05 "N Long: 77 148'45 "W
3. INVESTIGATION TYPE: CAMA
4. INVESTIGATIVE PROCEDURE: Dates of Site Visit — 9/11/2013 and 5/7/2015
Was Applicant Present — Yes (agent), No
5. PROCESSING PROCEDURE: Application Received — 4/17/2015 (complete)
Office — Wilmington
6. SITE DESCRIPTION:
(A) Local Land Use Plan— .Wilmington - New Hanover County
Land Classification From LUP — Residential, Conservation
(B) AEC(s) Involved: CW, PT, EW, ES
(C) Water Dependent: Yes
(D) ' Intended User Public
(E) Wastewater Treatment: Existing- Municipal Sewer
Planned- N/A
(F) Type of Structures: Existing- Bridge No. 12 US HWY 74/76(Heide Trask Drawbridge)
Planned- Elevated public walkway under bridge
7
(G) Estimated Annual Rate of Erosion: N/A
HABITAT DESCRIPTION:
[AREA]
DREDGED FILLED OTHER
(A) Vegetated Wetlands (Coastal Wetland)
(B) Non - Vegetated Wetlands (Open Water)
200 sq. ft.
(Shading)
960 sq. ft.
Fther - Highground disturbance
1,030 sq. ft.
(D) Total Area Disturbed: 2,190 sq. ft. (0.05 acres)
(E) Primary Nursery Area: No
(F) Water Classification: SB Open: NO
8. PROJECT SUMMARY: The applicant proposes to construct an elevated public walkway under the Heide Trask Drawbridge.

City of Wilmington
Page 2
PROJECT DESCRIPTION
The project site is located on the City of Wilmington side of the existing Heide Trask Drawbrige located over the Atlantic Intracoastal
Waterway (AIWW) to the Town of Wrightsville Beach, in New Hanover County. To get to the site from the Wilmington regional office
take US Hwy 74/76 towards Wrightsville Beach just before crossing the drawbridge to Wrightsville Beach. The project is located
entirely within the North Carolina Department of Transportation (NC DOT) right -of -way.
The existing bridge was constructed in 1957 and is approximately 731' in length by 69' in width. The bridge approaches have a
concrete deck supported with concrete T -Beams and concrete pilings and caps. The bascule leafs are opened and closed by a bridge
tender via electric controls located in the bridge tender house over the bascule piers on the southwest side of the channel. Several
utility lines parallel the south side of the bridge in a utility corridor located approximately 15' to 35' south of the existing bridge, which
include electric, telephone, cable TV and water lines. Sanitary sewer (Northeast Interceptor) and communications lines parallel the
north side of the bridge at approximately 50' to 100' north of the bridge. There is also an existing public sidewalk on the northern side of
US Hwy 74/76.
The project site has approximately 69' of shoreline frontage along the AIWW. Coastal Wetlands on -site consist primarily of Smooth
Cordgrass (Spartina alferniflora) and Glasswort (Salicomia spp.) in an area ranging from approximately 20' to 50'in width. Upland
vegetation consists primarily with Wax Myrtles, Cedar Trees and native grasses.
The Wilmington -New Hanover County 2006 Land Use Plan classifies adjacent waters and high ground portion of the property as
Conservation. The waters of the project area are classified SB by the Division of Water Resources. They are NOT designated as a
Primary Nursery Area (PNA) by the N.C. Division of Marine Fisheries and they are CLOSED to the harvest of shellfish.
PROPOSED PROJECT
The applicant proposes to construct an elevated public walkway under the Heide Trask Drawbridge. The proposed walkway, through
cooperation with the NC DOT, would begin on the northern side of US 74/76, which would tie into the existing sidewalk. A new asphalt
sidewalk, measuring approximately 100' in length by 8' in width would extend in an easterly direction and would be constructed up to
the Coastal Shoreline 30'Buffer. At this point a new elevated timber /composite walkway would be constructed a distance of
approximately 260' in length by 8' in width from the north side of the bridge to the south side, of which approximately 70' of the walkway
would be located under the drawbridge running parallel to the shoreline. The elevated walkway would tie into a new asphalt walkway
on the southern side of the bridge, measuring approximately 80' in length by 8' in width, which would then lead to another sidewalk,
measuring approximately 110' in length by 8' in width running along the US Hwy 74/76 and Aidie Road right -of -way. The applicant also
proposes to construct an octagonal covered platform, measuring approximately 18' in length by 17' in width, which would be located on
the northern side of the bridge and partially within the Coastal Shoreline 30' Buffer. The application states that the elevated structure
would be associated with the public City of Wilmington Cross City Trail and .would meet the Americans with Disability Acts (ADA)
requirements. The application also states the structures would be entirely within the NCDOT right -of -way requirements (See attached
sheets and Project Narrative).
10. ANTICIPATED IMPACTS
The proposed structures would incorporate approximately 960 sq. ft. of Estuarine Waters and Pubic Trust Area and shade
approximately 200 sq. ft. of coastal wetlands. The proposed structures would impact approximately 1,030 sq. ft. of highground area
within the 75' Coastal Shoreline Area of Environmental Concern. The proposed structures would not encroach into the adjacent 15'
Riparian Corridor Setback Area requirement or the USACE 80 ft. setback from the federal channel requirement. Minor increases in
turbidity should be expected during construction.
Submitted by: Robb L. Mairs Date: May 11, 2015 Office: Wilmington

APPLICATION for
NOW Development Permit MAY 1 4 2015 J�
DENR . Vvq
(last revised 12127/06) 4pj &BUFF;
North Carolina DFVWON OF COASTAL MANAGEMENT
1. Primary Applicant/ Landowner Information
Business Name
Project Name (if applicable)
City Of Wilmington
TIP# U -55346 - Walkway Under Heide Trask Drawbridge
Applicant 1: First Name
MI
Last Name
Amy
MI
Beatty
Applicant 2: First Name
MI
Last Name
n/a
n/a
n/a
If additional applicants, please attach an additional page(s) with names listed.
n/a
Mailing Address
PO Box
City
State
n/a
PO Box 1810
Wilmington
NC
ZIP
Country
Phone No.
FAX No.
28402 1810
USA
910 - 341 - 4604 ext.
910 - 341 - 7802
Street Address (if different from above)
City
State
n/a — — ext.
ZIP
305 Chestnut Street
Wilmington
NC
919 677 2050
28401-4019
Email
Street Address (if different from above)
[e-mail]
City
State
2. Agent/Contractor Information
Business Name
Kimley -Horn
Agent! Contractor 1: First Name
MI
Last Name
Jason
Hartshorn
Agent/ Contractor 2: First Name
MI
Last Name
n/a
n/a
n/a
Mailing Address
PO Box
City
State
3001 Weston Parkwy
n/a
Cary
NC
ZIP
Phone No. 1
Phone No. 2
27513 2301
919 - 678 - 4155 ext. n/a
n/a — — ext.
FAX No.
Contractor #
919 677 2050
n/a
Street Address (if different from above)
City
State
ZIP
n/a
N/A
n/a
n/a —
Email
jason.hartshom @kimley- horn.com
<Form continues on back> RECEIVED
DCM WILMINGTON, NC
- - APR 17 2015
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Form DCM MP -1 (Page 2 of 5)
APPLICATION for
Major Development Permit
3. Project Location
County (can be multiple)
Street Address
State Rd. #
New Hanover
US 74/76 (Wrightsville Avenue) at Airtie Road
n/a
Subdivision Name
City
State
Zip
n/a
Wilmington
NC
28403-
Phone No.
Lot No.(s) (if many, attach additional page with list)
n/a — - ext.
NCDOT Right -of -Way, I I ,
a. In which NC river basin is the project located?
b, Name of body of water nearest to proposed project
Cape Fear
Atlantic Intracoastal Waterway
c. Is the water body identified in (b) above, natural or manmade?
d. Name the closest major water body to the proposed project site.
®Natural ❑Manmade ❑Unknown
Greenville Sound
e. Is proposed work within city limits or planning jurisdiction?
f. If applicable, list the planning jurisdiction or city limit the proposed
®Yes []No
work falls within.
CB - Community Business District
City of Wilmington
4. Site Description
a. Total length of shoreline on the tract (ft.)
b. Size of entire tract (sq.ft.)
69.2'
9,888.2
c. Size of individual lot(s)
d. Approximate elevation of tract above NHW (normal high water) or
n /a, n /a, n /a, n/a
NWL (normal water leveq
(If many lot sizes, please attach additional page with a list)
1.1' to 1.5' NNHW or ❑ NWL
e. vegetation on tract
The project area is primarily maintained /disturbed land associated with the NCDOT right -of -way and the sandy shoreline
adjacent to the Atlantic Intracoastal Waterway (AIWW). Vegetation on the upland slopes leading to the shoreline consists of
pockets of small trees including hackberry and eastern red ceder with dense understories of greenbrier. Large expanses of
open ares are present within the project area consisting of bare beach sand, but transition zones between the forested
communities and the low marsh areas are dominated by low shrub and herbaceous plant species including seacoast marsh
elder and pennywort. Below the normal high water (NHW) mark, the project area is primarily a tidal aquatic community over
a bare sandy substrate, but two coastal wetlands are present within the project area, consisting of dense colonies or smooth
cord grass and glasswort.
f. Man -made features and uses now on tract
The project area is currently an NCDOT right -of -way associated with US 74/76 (Wrightsville Avenue) and the Heide Trask
Drawbridge structure.
g. Identify and describe the existing land uses ad'acent to the proposed project site.
Adjacent to the project is an active marina facility (to the southwest) and a private pier structure (to the northeast). The main
navigable channel of the AIWW is located southeast of the project area, crossing beneath the Heide Trask Drawbridge,
however the proposed project will cross beneath the existing bridge structure between the second span, and will be well
away from the navigable channel of the AIWW. North and west of the project corridor is primarily low- density residential
development and commercial establishments..
h. How does local government zone the tract?
i. Is the proposed project consistent with the applicable zoning?
CB - Community Business District
(Attach zoning compliance certificate, if applicable)
®Yes []No ❑NA
J. Is the proposed activity part of an urban waterfront redevelopment proposal? ®Yes ❑No
k. Hasa professional archaeological assessment been done for the tract? If yes, attach a copy. NYes ❑No ❑NA
If yes, by whom? The North Carolina Historic
Properties Office review the site
and confirmed in November 2013
252 -808 -2808 .. 1- 888- 4RCOAST :-

Form DCM MP -1 (Page 3 of 5)
APPLICATION for
Major Development Permit
that there are no recorded
archaeological sites within the
project area and an archaeological
survey is not recommended
(Documentation attached).
1. Is the proposed project located in a National Registered Historic District or does it involve a ®Yes ❑No ❑NA
National Register listed or eligible property?
<Form continues on next page>
m. (i) Are there wetlands on the site? NYes ❑No
(ii) Are there coastal wetlands on the site? Ryes ❑No
(iii) If yes to either () or (i) above, has a delineation been conducted? NYes ❑No
(Attach documentation, if available)
n. Describe existing wastewater treatment facilities.
No wastewater treatment facilities exist within the project area, and the proposed project will not generate any wastewater.
o. Describe existing drinking water supply source.
No drinking water supply sources exist within the project area, and the proposed project will not require any drinking water
supply source.
p. Describe existing storm water management or treatment systems.
No stormwater treatment facilities are present within the project area. Stormwater falling on the existing NCDOT bridge
structure is managed in accordance with the NCDOT stormwater management plan.
5. Activities and Impacts
a. Will the project be for commercial, public, or private use? []Commercial NPublic/Govemment
❑ Private/Community
b. Give a brief description of purpose, use, and daily operations of the project when complete.
The project will provide a safe and designated crossing for cyclists and pedestrian across US 74/76 (Wrightsville Avenue) on
the mainland side of the Heide Trask Drawbridge in Wlimington. It begins in the northeast quadrant of the Wrighstville
Avenue /Airlie Road intersection near the terminus of Phase IIIB of the Cross City Trail (currently in design), and ends in the
southeast quadrant of the same intersection. The walkway will provide bicycle and pedestrian access to numerous
recreational, cultural, and educational destinations in Wilmington, and will ensure safe access across US 74176.
c. Describe the proposed construction methodology, types of construction equipment to be used during construction, the number of each type
of equipment and where it is to be stored.
The proposed walkway will be 8' wide to facillitate two-way pedestrian and /or bicycle traffic, constructed of composite drip -
through decking (Trex decking) with timber support pilings for areas outside of the existing NCDOT bridge structure. Under
the existing NCDOT bridge structure, the walkway will remain 8' wide, composed of composite drip- through decking (Trex
decking), but will be supported by helical micropiles to allow sufficient clearance between the NCDOT bridge supports and
the walkway supports. The proposed walkway will be constructed along the alignment of the boardwalk, meaning that no
equipment will be within the AIWW or any water of the US at any time. Pilings will be installed from the structure as it is built
along the alignment. Equipment and material staging and construction access routes will be located in upland areas
throughout the corridor. Typical roadway and boardwalk construction equipment will be utilized, including cranes, track hoes,
back hoes, graders, dump trucks, bulldozers, and pavers.
d. List all development activities you propose.
The project will consist of a paved multi -use path for public utilization, extending towards the AIWW (connecting to the Cross
City Trail, to be constructed by others), transitioning to an 8' wide elevated boardwalk with drip - through decking crossing
beneath the existing NCDOT bridge structure carrying US 74/76 over the AIWW. On the north side of the existing NCDOT
bridge structure, the project will also construct a covered octagonal landing (309 square feet additional area beyond the 8'
wide walkway path, but of that area, only 182 square feet will be within the impervious area setback) to provide shade relief
and a rest area for members of the public using the walkway and the Cross City Trail.
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Form DCM MP -1 (Page 4 of 5)
APPLICATION for
Major Development Permit
e. Are the proposed activities maintenance of an existing project, new work, or both?
New work
f. What is the approximate total disturbed land area resulting from the proposed project?
0.18
❑Sq.Ft or ®Acres
g. Will the proposed project encroach on any public easement, public accessway or other area
[]Yes ®No
❑NA
that the public has established use of?
h. Describe location and type of existing and proposed discharges to waters of the state.
No discharges to waters of the state will result from the proposed project. The project consists of a paved asphalt walkway
and elevated boardwalk constructed with drip- through decking, and a single covered landing area. Stormwater will not be
concentrated or collected by the proposed project.
I. Will wastewater or stormwater be discharged into a wetland?
❑Yes ®No
❑NA
If yes, will this discharged water be of the same salinity as the receiving water?
❑Yes ®No
❑NA
j. Is there any mitigation proposed?
[]Yes ®No
❑NA
If yes, attach a mitigation proposal.
<Form continues on back>
6. Additional Information
In addition to this completed application form, (MP -1) the following items below, if applicable, must be submitted in order for the application
package to be complete. Items (a) — (t) are always applicable to any major development application. Please consult the application
instruction booklet on how to properly prepare the required items below.
a. A project narrative.
b. An accurate, dated work plat (including plan view and cross - sectional drawings) drawn to scale. Please give the present status of the
proposed project. Is any portion already complete? If previously authorized work, clearly indicate on maps, plats, drawings to distinguish
between work completed and proposed.
c. A site or location map that is sufficiently detailed to guide agency personnel unfamiliar with the area to the site.
d. A copy of the deed (with state application only) or other instrument under which the applicant claims title to the affected properties.
e. The appropriate application fee. Check or money order made payable to DENR.
f. A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such
owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 days in
which to submit comments on the proposed project to the Division of Coastal Management.
Name John & Eliza Blackwell, LLC Phone No.
Address 230 N Elm Street, Greensboro, NC 27401
Name Bailey and Associates, Inc Phone No.
Address PO Box 400, Jacksonville, NC 28540
Name Baker Family Holdings, LLC Phone No.
Address PO Box 163, Wrightsville, NC 28480
g. A list of previous state or federal permits issued for work on the project tract. Include permit numbers, permittee, and issuing dates.
USACE GP56, Submitted Concurrently with this Application
NCDWR WQC 3883, Submitted Concurrently with Application
h. Signed consultant or agent authorization form, if applicable.
i. Wetland delineation, if necessary.
j. A signed AEC hazard notice for projects in oceanfront and inlet areas. (Must be signed by property owner)
k, A statement of compliance with the N.C. Environmental Policy Act (N.C.G.S. 113A 1 -10), if necessary. If the project involves expenditure
of public funds or use of public lands, attach a statement documenting compliance with the North Carolina Environmental Policy Act.
252 - 808 -2808 .. 1- 888- 4RCOAST .. www.nccoastalmanagement.net

Form DCM MP -1 (Page 5 of 5) APPLICATION for
Major Development Permit
1 7. Certification and Permission to Enter on Land
I understand that any permit issued in response to this application will allow only the development described in the application.
The project will be subject to the conditions and restrictions contained in the permit.
I certify that I am authorized to grant, and do in fact grant permission to representatives of state and federal review agencies to
enter on the aforementioned lands in connection with evaluating information related to this permit application and follow -up
monitoring of the project.
I further certify th the ' nformation provided in this application is truthful to th est of my knowledge.
Date S ZUI S Print Narne J4scv�_l 1f,14 ie77r4b/f
Signature
Please indicate application attachments pertaining to your proposed project.
❑DCM MP -2 Excavation and Fill Information ❑DCM MP -5 Bridges and Culverts
®DCM MP -3 Upland Development
®DCM MP -4 Structures Information
252 -803- 213013 .. '1- 888- 4rtCilAST .. ww�v .nccoasBalEVaa��agem�n..cre4

Form DCM MP -3
UPLAND DEVELOPMENT
(Construction and /or land disturbing activities)
Attach this form to Joint Application for CAMA Major Permit, Form DCM MP -1. Be sure to complete all other sections of the Joint
Application that relate to this proposed project. Please include all supplemental information.
GENERAL UPLAND DEVELOPMENT
a. Type and number of buildings, facilities, units or structures b. Number of lots or parcels.
proposed. The project is entirely within NCDOT right -of -way.
The project will construct an 8' wide asphalt multiuse path,
transitioning to an 8' wide elevated boardwalk. An
octagonal landing with cedar shingle roof will be
constructed partially within the impervious area setback
landward of NHW (182 square feet within the impervious
setback only, out of 309 square feet total).
c. Density (give the number of residential units and the units per
acre).
0. No dwellings will be built by the project.
e. If the proposed project will disturb more than one acre of land, the
Division of Land Resources must receive an erosion and
sedimentation control plan at least 30 days before land- disturbing
activity begins.
n If applicable, has a sedimentation and erosion control plan been
submitted to the Division of Land Resources?
❑Yes ❑No ®NA
(ii) If yes, list the date submitted: n/a
g. Give the percentage of the tract within the coastal shoreline AEC to
be covered by impervious and/or built-upon surfaces, such as
pavement, building, rooftops, or to be used for vehicular driveways
or parking.
15.9%
I. Give the percentage of the entire tract to be covered by impervious
and/or built-upon surfaces, such as pavement, building, rooftops,
or to be used for vehicular driveways or parking.
27.9%
Describe proposed method of sewage disposal.
No sewage will be generated by the proposed project. The
project seeks to construct a pedestrian multiuse
pathway.
I. Describe location and type of proposed discharges to waters of the
state (e.g., surface runoff, sanitary wastewater, industrial/
commercial effluent, "wash down" and residential discharges).
No discharges will occur as a result of the proposed project.
d. Size of area to be graded, filled, or disturbed including roads,
ditches, etc.
0.18 acres.
f. List the materials (such as marl, paver stone, asphalt, or concrete)
to be used for impervious surfaces.
Asphalt, cedar shingles.
h. Projects that require a CAMA Major Development Permit may also
require a Stormwater Certification.
(i) Has a site development plan been submitted to the Division of
Water Quality for review?
❑Yes ®No ❑NA
(ii) If yes, list the date submitted: A Section 401 WQC is being
submitted concurrently with this application.
k. Have the facilities described in Item (i) received state or local
approval?
❑Yes ❑No ®NA
If yes, attach appropriate documentation.
m. Does the proposed project include an innovative stormwater
design?
[]Yes ❑No ®NA
If yes, attach appropriate documentation.
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F®riivit DCM MP -3 (Uplabod IDevellojav'aeflh, gage 2 my 2)
Stormwater will be drip through the structure or
sheetflow off of the cover landing.
m. Describe proposed drinking water supply source (e.g., well,
community, public system, etc.)
n/a
o. When was the lot(s) platted and recorded?
The project is located entirely within NCDOT right -of -way.
IS �v /S
Date
n. (i) Will water be impounded? ❑Yes NNo ❑NA
(ii) If yes, how many acres? n/a
p. If proposed development is a subdivision, will additional utilities be
installed for this upland development?
❑Yes ❑No NNA
-rfP 4 Lk - S 5 3q (3 - U.,, 0JAI /JGrec / ;AS)A
Project Name
d sore A fz-r" 140 ✓L �l GC -ti r Fc,e CITY 0 is
Appli Name
Apy scant Signature
ear.. ex
wT[.wtTvGRi� )
252 - 808 - 28013 :: 1- 368.0M64ilAS :: oEVIOMallet revised: '12 /26/06

Form DCM MP -4
STRUCTURES
(Construction within Public Trust Areas)
Attach this form to Joint Application for CAMA Major Permit, Form DCM MP -1. Be sure to complete all other sections of the Joint
Application that relate to this proposed project. Please include all supplemental information.
1. DOCKING FACILITY /MARINA CHARACTERISTICS
a. (i) Is the docking facility /marina:
❑Commercial ❑Public/Government ❑Private /Community
c. (i) Dock(s) and/or pier(s)
(ii) Number
(iii) Length
(iv) Width
(v) Floating ❑Yes ❑No
e. (i) Are Platforms included? ❑Yes ❑No
If yes:
(ii) Number
(iii) Length
(iv) Width
(v) Floating ❑Yes ❑No
Note: Roofed areas are calculated from dripline dimensions.
g. () Number of slips proposed
(i) Number of slips existing
i. Check the proposed type of siting:
❑ Land cut and access channel
❑Open water; dredging for basin and /or channel
❑Open water; no dredging required
❑Other; please describe:
k. Typical boat length:
m. (i) Will the facility have tie pilings?
[--]Yes ❑No
(i) If yes number of tie pilings?
®This section not applicable
b. (i) Will the facility be open to the general public?
❑Yes ❑No
d. (i) Are Finger Piers included? ❑Yes ❑ No
If yes:
(ii) Number
(iii) Length
(iv) Width
(v) Floating ❑Yes ❑No
f. (i) Are Boatlifts included? ❑Yes ❑No
If yes:
(ii) Number
(iii) Length
(iv) Width
h. Check all the types of services to be provided.
❑ Full service, including travel lift and/or rail, repair or
maintenance service
❑ Dockage, fuel, and marine supplies
❑ Dockage ( "wet slips ") only, number of slips:
❑ Dry storage; number of boats:
❑ Boat ramp(s); number of boat ramps:
❑ Other, please describe:
j. Describe the typical boats to be served (e.g., open runabout,
charter boats, sail boats, mixed types).
I. (i) Will the facility be open to the general public?
❑Yes ❑No
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Form DCM MP -4 (Structures, Page 2 of 4)
2. DOCKING FACILITY /MARINA OPERATIONS ®This section not applicable
a. Check each of the following sanitary facilities that will be included in the proposed project.
❑ Office Toilets
❑ Toilets for patrons; Number: ; Location:
❑ Showers
❑ Boatholding tank pumpout; Give type and location:
b. Describe treatment type and disposal location for all sanitary wastewater.
c. Describe the disposal of solid waste, fish offal and trash.
d. How will overboard discharge of sewage from boats be controlled?
e. (i) Give the location and number of "No Sewage Discharge" signs proposed.
(ii) Give the location and number of ° Pumpout Available' signs proposed.
f. Describe the special design, if applicable, for containing industrial type pollutants, such as paint, sandblasting waste and petroleum products.
g. Where will residue from vessel maintenance be disposed of?
h. Give the number of channel markers and "No Wake" signs proposed.
i. Give the location of fuel - handling facilities, and describe the safety measures planned to protect area water quality.
j. What will be the marina policy on overnight and live- aboard dockage?
k. Describe design measures that promote boat basin flushing?
I. If this project is an expansion of an existing marina, what types of services are currently provided?
m. Is the marina/docking facility proposed within a primary or secondary nursery area?
❑Yes ❑No
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Form DCM MP -4 (Structures, Page 3 of 4)
n. Is the marina/docking facility proposed within or adjacent to any shellfish harvesting area?
❑Yes [I No
o. Is the marina/docking facility proposed within or adjacent to coastal wetlands /marsh (CW), submerged aquatic vegetation (SAV), shell bottom
(SB), or other wetlands (WL)? If any boxes are checked, provide the number of square feet affected.
❑CW ❑SAV ❑SB
OWL []None
p. Is the proposed marina/docking facility located within or within close proximity to any shellfish leases? ❑Yes []No
If yes, give the name and address of the Ieaseholder(s), and give the proximity to the lease.
3. BOATHOUSE (including covered lifts) ®This section not applicable
a. (i) Is the boathouse structure(s):
❑Commercial ❑Public/Government ❑Private /Community
(ii) Number
(ii) Length
(iv) Width
Note: Roofed areas are calculated from dripline dimensions.
4. GROIN (e.g., wood, sheetpile, etc. if a rock groin, use MP -2, Excavation and Fill.) ® This section not applicable
a. (i) Number
(ii) Length
(ii) Width
5, BREAKWATER (e.g., wood, sheetpile, etc.) ®This section not applicable
a. Length b. Average distance from NHW, NWL, or wetlands
c. Maximum distance beyond NHW, NWL or wetlands
16. MOORING PILINGS and BUOYS ®This section not applicable
a. Is the structure(s):
❑Commercial ❑Public /Government ❑Private /Community
c. Distance to be placed beyond shoreline
Note: This should be measured from marsh edge, if present.
e. Are of the swing
7. GENERAL
b. Number
d. Description of buoy (color, inscription, size, anchor, etc.)
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Foam ®CM MP-4 (Structures, Page 4 of 4)
a. Proximity of structure(s) to adjacent riparian property lines
The walkway will be entirely within NCDOT right -of -way, but
will be 50' away from the northern property line and 20'
away from the southern property line.
Note; For buoy or mooring piling, use arc of swing including length
of vessel.
c. Width of water body
400', navigational channel is narrower (100' at US 74/76
bridge over the AIWW).
e. (i) Will navigational aids be required as a result of the project?
[]Yes ®No DNA
(ii) If yes, explain what type and how they will be implemented.
n/a
b. Proximity of structure(s) to adjacent docking facilities.
Structure is 60' northeast of a marina facility and 170'
southwest of a dock facility at the end of a pier.
d. Water depth at watenvard end of structure at NLW or NWL
8. OTHER El This section not applicable
a. Give complete description:
The project is entirely within NCDOT right -of -way associated with US 74/76 and the Heide Trask Drawbridge approach span.
The area is historically disturbed & large areas of the study area are regularly maintained. The project area extends over the
MHWM of the AIWW & includes the sandy fill slope of US 74/76 down to the tidal area & aquatic community of the AIWW.
Land use in the vicinity is primarily commerical or NCDOT right -of -way, with fragmented natural thickets between the AIWW
and US 74/76. The project proposes to construct a public walkway underneath the Heide Trask Drawbridge approach span to
provide a designated crossing for cyclists and pedestrians across US 74/76 (Wrightsville Avenue) on the mainland side of the
drawbridge in Wilmington, The proposed walkway will be 8' wide to facillitate two -way pedestrian /bicycle traffic, constructed of
drip- through decking with timber support pilings. Under the existing NCDOT bridge structure, the walkway will remain 8' wide,
but will be supported by micropiles to allow sufficient clearance between the NCDOT bridge supports & the walkway supports.
The walkway begins in the northeast quadrant of the Wrightsville Avenue /Airlie Road intersection near the terminus of Phase
IIIB of the Cross City Trail. It ends in the southeast quadrant, near the Bridge Tender Marina parking lot. The only impacts
proposed below the Normal High Water line of the AIWW will be from the placement of vertical support pilings. The volume of
the fill material placed will be 19.73 cubic feet (0.73 cubic yards), resulting from the placement of five 8" timber pilings driven
8' into the substrate below the water. Sixteen 2 -718" helical micropiles will be driven 8' into the substrate below the water (only
when beneath the existing NCDOT bridge structure). These fill placements total 2,47 square feet of area. Of those pilings,
ONLY four of the 8" timber support pilings will be driven 8' into the coastal wetland, & ONLY one 2 -7/8" helical micropiling will
be driven 8' into the coastal wetland substrate. This fill totals 1.44 square feet of area (this area is part of the 2.47 square feet
previously referenced). Fill material brought to the site will be limited to timber and micopile support pilings. No erosion control
will be necessary for the storage of these pilings, and no navigational aids will be required as a result of the project.
Construction equipment including backhoes /trackhoes (or other piling installation equipment) will be used to transport and
install the vertical support pilings, and no wetlands will be crossed in transporting equipment to the project site.
Applicant Name
Date
Applicant Signature
Project Name
252- 608 -280ca :: 1.888- 41RCOIAST :: vaww.neconstaimanacoejaionY.n ®t revised: 12/27106

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U -5534B Project Study Area
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Brunswick County
0 New Hanover County
Project Area
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City of Wilmington
Atlantic Ocean
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Motts Channel
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Legend
[3 Project Area New Hanover County'
Wilmington Wrightsville Beach
New Hanover County
Figure 1: Vicinity Map
Walkway Under Heidi Trask Drawbridge
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N0101-1 CAR01 INA
City of Wilmington, NC
April 2015

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Walkway Under Heidi • • •
City of • •
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Normal High Water Mark
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Figure 3: Jurisdictional Features Map
Walkway Under Heidi Trask Drawbridge
NCDOT TIP U-55346
City of Wilmington, NC
April 2015

Heidi Trask Bridge Walkway Soil Legend
Map Unit
Soil Unit Name
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Be
Bayrneade fine sand
Inclusions
TM
Tidal Marsh
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Legend
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Figure 4: NRCS Soil Survey Map
GTON (New Hanover County, 1977)
Walkway Under Heidi Trask Drawbridge
NCDOT TIP U-5534B
City of Wilmington, NC
April 2015