SW8060118_HISTORICAL FILE_20060920

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�����
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
WYYMMDD

NCDENR
North Carolina Department of Environment and Natural Resources
Michael E. Easley, Govemor
September 20, 2006
MEMORANDUM:
TO:
FROM:
SUBJECT:
Applicant:
UIVISion of Coastal Management
Charles S. Jones, Director
Linda Lewis
Stormwater
Division of Water Quality
William G. Ross Jr., Sacretary
0Co
LIP
1�
Doug Huggett, Major Permits Coordinator
CAMA / Dredge & Fill Permit Application Review
NC DOT / Second Bridge to Oak Island (R-2246)
Project Location: Between NCSR 1104 and NC Hwy 211, adjacent to the AIWW and Big
Davis Canal, between the Town of Oak Island & Midway, in Brunswick Co.
Proposed Project: To construct a roadway, known as the second bridge to Oak Island.
Please indicate below your agency's position or viewpoint on the proposed project and return
this form by October 11, 2006. If you have any questions regarding the proposed project,
please contact Jim Gregson at [phone], 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 6x�J DATE 10 16o­ ZCXto
127 Cardinal Drive Ext., Wilmington, North Carolina 28405-3845
Phone: [phone] l FAX: [phone] Internet: www.nccoastalmanagement.net
An Equal Opportunity t A€€irrnadve Action Employer — 50% Reryded 110% Post consurnec Paaer

State Stormwater Management Systems
Permit No. SW8 060118
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
NCDOT
R-2245 2"d Oak Island Bridge and Road
New Route from SR 1004 Oak Island to NC 211, Brunswick County
FOR THE
construction, operation and maintenance of an infiltration basin and StormTech (or
equivalent) underground infiltration chambers, in compliance with the provisions of 15A
NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved
stormwater management plans and specifications and other supporting data as
attached and on file with and approved by the Division of Water Quality and considered
a part of this permit.
This permit shall be effective from the date of issuance until May 15, 2016, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has-been approved for the management of stormwater
runoff as described in Sections 1.6 and 1.7 on page 3 of this permit. The
stormwa�er controls have been designed to handle the runoff from 61,630 ft2 and
14,861 ft respectively, of impervious area. Each infiltration facility must be
operated with a 50' vegetated filter.
3. The remainder of the linear road project will utilize grassed swales for treatment
of the runoff.
3. The drainage area for each proposed stormwater facility will be limited to the
amount of built -upon area indicated on page 3 of this permit, and per approved
plans.
4. All stormwater collection and treatment systems must be located within the DOT
right-of-way or in recorded easements. The final plats for the project will be
recorded showing all such required easements, in accordance with the approved
plans.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 060118
5.
0
7
The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
The infiltration basin provides treatment for the runoff from the southern half of
the larger bridge. The following design criteria have been provided in the
infiltration basin and must be maintained at design condition:
a
b.
C.
d.
e.
f.
h.
J_
k.
I.
m
n.
o.
Drainage Area, 9cres.
Onsite, ft
Offsite, ft2:
Total Impervious Surfaces, ft2:
Design Storm, inches:
Basin Depth, feet:
Bottom Elevation, FMS�:
Bottom Surface Area, ft
Bypass Weir Elevation, FMSi
Permitted Storage Volume, ft :
Type of Soil:
Expected Infiltration Rate, in/hr:
Seasonal High Water Table; FMSL:
Time to Draw Down, hours:
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body:
1.415
61,630
0
61,630
1.5
3.0
23.0
4,308
24.5
8,668
Wando Variant
64
20.5
1
Intracoastal Waterway 1 Lumber
LBR59 15-25
"SA"
The StormTech chambers provide treatment for the runoff from the smaller
bridge. The following design criteria have been provided in the Stormtech
Chamber System (or equivalent) and must be maintained at design condition:
a. Drainage Area, Acres:
Onsite, ft :
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
C. Design Storm, inched:
d. Chamber Volume, ft :
e. Bottom Elevation, FMSL:
g. Bypass Weir Elevation, FMSy
h. Permitted Storage Volume, ft :
i. Required number of StormTech units
j. Type of Soil:
k. Expected Infiltration Rate, in/hr:
I. Seasonal High Water Table, FMSL:
M. Time to Draw Down, hours:
n. Receiving Stream/River Basin:
o. Stream Index Number:
p. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
0.34
14,861
0
14,861
1.5
74.9 with 6" stone
81.6 with 12" stone
88.4 with 18"
11.75
14.25
1,765
24 with 6" stone
22 with 12" stone
20 with 18" stone
Dredge Spoil
23
<11
<1
ICWW (Davis Canal) 1 Lumber
LBR59 15-25
"SA"
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 060118
3. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
4. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
5. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
7. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
8. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of ail or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
9. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
10. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 060118
11. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame,
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the.permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or may not
be approved. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued this the 15th day of May 2006.
NORTH,E;AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
0x3
forAla"ri-W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

.r
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICI [AEL F. EASLEY LYM)o TIPPEIT
GDVER..NOR SECRETARY
13 APR 06
PROJECT NO.: 34407.1.1 (R-2245)
F.A. No.: STP-1105(6)
COUNTY: Brunswick
DESCRIPTION: New Route from SR 1004 (Beach Drive) to NC 211 (Second
Bridge to Oak Island)
MEMORANDUM TO: Linda Lewis
FROM: Ray D. Lovinggood, PE I�191
SUBJECT: Response to your e-mail, dated 7 APR 06C�g��
5;,38 a �vo 4k8 APR 18 2006
Mrs. Lewis,
Thank- you for reviewing the application for the stormwater permit for the subject project. I
regret our submission was not complete and I hope my statements contained within this memo
will adequately answer your questions.
1. Details for the splitter boxes and storm chambers are included with this memo. Also. I have
included my calculations for the required volume and a stage storage relationship for the
infiltration basin. My calculations show a storage elevation of 24.3' +/- for the design event.
2. Original signatures are now provided.
3. Plans with drainage areas delineated are provided.
4. As mentioned in No. 1, the stage storage relationship is provided. We are providing this for
the basin, but not for the storm chambers. Since we cannot select proprietary chambers. each
manufacturer may have different dimensions. Therefore, we are requiring the contractor to
meet performance goals of providing storage for 1,765 cubic feet of stormwater runoff with
the weir elevation shown on the plans.
5. The runoff for the 2" d bridge (the larger bridge that crosses the Intracoastal Waterway) is
collected and infiltrated only for the southern half of the bridge. Runoff from the northern
half of the bridge is discharged at —L- Sta 65+90 Lt where it will infiltrate into the dredged
material that the roadway is built upon. The infiltration rate for this material has been
measured at 81.69 inches per hour.
If you have any questions; please call me at 1.919.250.4100
MAILING ADDRESS: TELEPHONE: [phone] LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone] CENTURY CENTER COMPLEX
HYQRAUUCS UNIT BUILDING B
1590 MAIL SERVICE CENTER WESSITE: WWW.DON.DOT.STATE.NC.US 1020BIRCHRIDGE DRIVE
RALEIGH NC 27699-1590 RALEIGH NC

STORMWATER MANAGEMENT PLAN
R-2245, State Project 34407.1 Date: 6 APR 05
Brunswick County
Hydraulics Project Manager: Max S. Price, Ph
ROADWAY DESCRIPTION
The project constructs a new, second, route to Oak Island. It begins by widening the
existing two lane Middleton Avenue on Oak Island and runs north, crossing the Atlantic
Intracoastal Waterway with a new high rise bridge. continuing on a new route on the
mainland. It terminates at the intersection of NC-21 1 and SR 1500, Midway Road. The
overall length of the project is 4.52 miles with 0.92 miles on Oak Island and the
remaining 3.60 miles on the mainland.
Starting near the ocean, the initial 1,700 feet of the project maintains two lanes, but
widens the road from 20 feet to 22 feet and adds 4 foot wide paved shoulder to both
sides. The road then begins a taper, widening to provide 5 lanes up to the southern end of
the bridge over the hitracoastal Waterway. From this point to the northern terminus, the
road provides two lanes in each direction with a raised median separating the traffic.
On the island, the roadway crosses Davis Canal. The project will cross the canal at the
same location, but with a new bridge. The roadway will be closed during construction of
the new bridge.
The majority of the roadway uses open shoulders. Gutters are used only on approaches to
the two bridges.
On the mainland portion of the project, the 17.5 foot wide median is raised, with concrete
curb and gutter bordering the mounded, grassy median. The typical section shows the
pavement slopes away from the median, draining to the grass shoulders and fill slopes.
All fill slopes are 3:1 or flatter except in wetland areas where they are held to 3:1.
A third major stream crossing occurs on NC-21 1, approximately 540 feet east of the
intersection with SR 1500. There, an existing box culvert will be removed and replaced
with a larger culvert.
ENVIRONMENTAL DESCRIPTION
Land Use
Beach homes dominate the project area on Oak Island while the corridor on the mainland
remains undeveloped. Not far off the mainland corridor; development of the St. James
community continues, pushing towards the project route. Alon- NC-21 1, at the northern
end of the project, only one small business and one small home exist now, but the
addition of a sanitary sewer line; currently underway, will undoubtedly bring growth.
Topography and Water Resources
The project is located in the Lumber River Basin in the Coastal Plain Physiographic
Province. Elevations in the project area range from a low of near seven feet to a high of

R-2245 SMP
6 APR 05
approximately 63 feet. The minimum elevation occurs on Oak Island near the ocean and
the maximum elevation occurs between the two largest Carolina Bays in the central
portion of the project area. North of the apex. the elevation drops to about 45 feet at the
intersection of the —L- line with NC-211, creating a slope of about 2 percent. South of
the apex, the elevation drops to sea level at the Atlantic Intracoastal Waterway, giving a
slope of about 8 percent. Descending the scarp to the Quaternary -aged deposits largely
accounts for the steeper slope. Soils in the southern portion of the project area are better
drained than in the northern part.
The project —L- line crosses three jurisdictional surface waters: Davis Canal on Oak
Island: the Atlantic Intracoastal Waterway which separates Oak Island from the
mainland; and, a small, unnamed tributary on the mainland. NC-211 (-Y7-) crosses
"River Swamp" with an existing box culvert. Both Davis Canal and the Intracoastal
Waterway are SA waters. The unnamed tributary, an intermittent channel through a
wetland, is not classified, but it drains to the Intracoastal waterway. This channel will be
carried under the —L- line by two 60" diameter concrete pipes, both set one foot below
natural ground level. Approximately 207 feet of this stream will be permanently
impacted due to the crossing and about 0.010 acres of permanent surface water impacts
will also result from the crossing. We estimate temporary surface water impacts at this
site will measure 0.002 acres.
River Swamp has been classified as C and Sw water. Currently, water runs through a
culvert of two different sizes; it appear to have been built with an initial size of 6'wide by
4' high, then extended on both ends with a size of 6' wide by 5' high. The extensions,
each measuring about 7 feet in length, maintain the same top slab elevation, but use
bottom slabs that drop one foot below the central, smaller portion. The project will
replace this multi -sized culvert with one 10' wide by 8' high box culvert. The larger size
will convey stormwater runoff expected from the developing area. Estimated impacts
include: 0.009 acres surface water (permanent impact); 0.011 acres surface water
(temporary impact); 34 feet of channel impact (permanent); and; 61 feet of channel
impact (temporary.) .
29 wetland sites will be crossed by the project with fill sections, impacting the wetlands
with permanent roadway fill and mechanized clearing. One small wetland area, located
in the southwest quadrant of the —L- line intersection with NC-21 1 will require a roadway
ditch. There is an existing ditch, presently within the wetland; running along the south
side of NC-21 1 and the project will require this ditch to be pushed out from 10 to 15 feet
further into the wetland.
Total impacts to wetlands caused by pernnanent fill are estimated at 18.643 acres.
BEST MANAGEMENT PRACTICES AND MAJOR STRUCTURES
Best Management Practices (BMPs) and measures used on the project are an attempt to
reduce the stormwater impacts to the receiving streams due to erosion and runoff. The
primary BMP is the use of grassed shoulders, as opposed to a curb and gutter roadway
drainage system. Rip rap lined ditches are used only near the stream under NC-211.
There, the stream banks are lined with rip rap where the two roadside ditches flow down
2

R-2245 SNIP
6 APR 05
the banks and into the channel. On the mainland, the outside shoulders and fill slopes are
grass, requiring no stormwater collection system. Along the median in the curves, inlets
intercept storm water and pipe it to the toe of slope. There, the stormwater will infiltrate
into the existing soils. Rip rap pads are used at each outlet to aid in energy attenuation
and flow dispersal. Most inlets are single inlets, collecting small areas of roadway
runoff, and discharging the small flow to the adjacent land. The largest system on the
mainland consists of three inlets and one outlet. This design was used to keep the outlet
outside of a wetland area.
The one jurisdictional stream crossing on the mainland by the —L- line will be made by
using two 60" concrete pipe culverts. These culverts will be placed one foot below
natural ground level.
In the wetland areas. 48" concrete pipes are placed across the —L- line to promote
equalization of water levels. Typical spacing is 200 feet and, as for the pipe culvert,
these pipes will be placed one foot below natural ground level.
The new bridge crossing Davis Canal will carry stormwater in the shoulder area to inlets
off of the bridge on the northern end. From there, the water will be conveyed to a
"splitter box", dividing the first flush to "infiltration chambers." The first flush,
consisting of the runoff from the first 1.5 inch of rainfall, will enter the buried chambers
and infiltrate into the sandy soil. The bypass flow will be diverted away from the
infiltration chambers and will flow through a grass swale to the Davis Canal. The Swale
length is greater than 170'.
The new bridge crossing the hitracoastal Waterway will carry stormwater in the shoulder
area, just like the Davis Canal bridge. And as with the Davis Canal bridge, no deck
drains will be allowed. Off the southern end of the bridge, storm water will be collected
in a series of inlets and piped to a splitter box, similar to the one for the Davis Canal.
Here, the runoff from the first 1.5 inch of rainfall will be directed to an infiltration basin.
Bypass flows will be directed to an infiltration channel, located along both sides of the
fill slopes for the southern approach to the bridge. Based on the topography and sand -
soils, bridge deck storm water runoff will not enter SA waters except during large rainfall
events, probably exceeded the 100 year event.
Stormwater from the northern end of the bridge collects in inlets off of the bridge deck
and is piped to an outlet on the west side of the fill slope. At this location, the roadway is
built atop of a sandy spoil pile created by construction and dredging of the Intracoastal
Waterway. A soil boring and resultant testing show a high rate of infiltration will occur.
Therefore, no additional devices, such as the "storm chambers" used on the Davis Canal
or the infiltration basin used for the southern half of the Intracoastal Waterway bridge,
are necessary. During large storm events, if the runoff does not infiltrate, it will sheet
flow towards a non jurisdictional pond within the spoil pile area, located approximately
350' west from the pipe outlet.
3

Re: SW8 060118 R-2245 2nd Bridge to Oak Island
i
Subject: Re: SW8 060118 R-2245 2nd Bridge to Oak Island
From: "Max S. Price, P.E." <mpricc@dot. state. nc.us>
Date: Wed, 26 Apr 2006 15:48:27 -0400
To: Linda Lewis <[e-mail]>
Linda
I will try to help with the confusion if I can.
Yes , a splitter box is a junction box with a weir.
Davis Canal Bridge
The detail on the letter size page that is
labled splitter box is a detail that was included in the
submittal to show the relationship of the splitter box
(traffic bearing junction box ) to the storm chamber,
the chamber volume and stone base. This detail
references the traffic bearing junction box detail for
dimensions and materials.
The ledger size detail labled "Detail of Traffic Bearing
Junction Box" is being modified today to show the
splitter box and the chamber in one detail. The title will
be changed to " Detail of Traffic Bearing Splitter Box."
Intracoastal• Waterway Bridge
The ledger size detail labled "Detail of Junction Box" is.being
modified also. The title will be "Detail of Splitter Box".
We are unable to use just one detail since the pipe orientations
are different and because the splitter box at the Davis Canal site
must be beefed up as a result of its proximity to traffic.
I will Fedex two revised detail sheets tommorrow.
Sorry for the confusion.
Max Price
Hydraulics
Linda Lewis wrote:
Max:
I'm a little confused. is a splitter box the same as a junction box?
You've provided details for both a splitter box and a junction box, but
both details show a weir. There should be only one inlet structure to
the basin and the "stormchamber" type system with a weir. Please be
consistent in labeling the details and matching them up to the plans.
Please remove references to either the splitter box or to the junction
box and just have one structure and one detail with a weir.
If the inlet structures for the Chamber system and the basin are
similar, you can use a typical detail and list the pertinent elevations
for each system below the detail. If the inlet structures are not
similar, please provide separate details for each inlet structure
labeled as either a splitter box or a junction box for the basin or for
the Chamber system.
1 of 2 4/26/2006 5:28 PM

Re: SW8 060118 R-2245 2nd Bridge to Oak Island
Linda
Max S. Prise, P.E. wrote:
I Hello Linda
I was just checking in to see if ya'll recieved the
additional information that was FEDXed
on 4/I7/06 for the subject project. And to see
if any additional information is required.
Not trying to bug ya but people here keeping asking
me.
Max Price
Hydraulics
2 of 2 4/26/2006 5:28 PM

SW8 060118 (R-2245 2nd Oak Island Bridge)
Subject: SW8 060118 (R-2245 2nd Oak Island Bridge)
From: Linda Lewis <[e-mail]>
Date: Fri, 07 Apr 2006 11:58:54 -0400
To. "Max S. Price" <mprice@dot. state. nc.us>
CC: Melba McGee <[e-mail]>
Max:
I've reviewed the information you sent me on March 24, 2006. I have a few
questions/requests for information:
1. Please add details for the splitter box and storm chamber. The splitter box
detail should show the weir elevation corresponding to the 1.5" storage elevation
in the basin, currently indicated as 23.6. 1f the required 1.5" design volume is
7,600 cubic feet, as reported on the supplement, then the corresponding storage
elevation will be much higher than 23.6. Based on my preliminary calculations using
the basin areas scaled from the plans, the storage elevation would be somewhefe
around 24.3.
2. Please provide documents with original signatures. I can't accept photocopies.
3. Please delineate the drainage area for the infiltration basin and the
infiltration storm chamber.
4. Please provide detailed calculations of how the required design volumes were
determined and a table of the elevations, surface areas, incremental volumes and
accumulated volumes for the infiltration basin and storm chamber.
For example, the supplement for the infiltration basin reports that the design
volume is 7600 cubic feet, however, I am unable to find how this was determined,
since no drainage area information was provided and the calculations are
incomplete. what was the method of calculating this volume? Our BMP Manual offers a
"simple method" for calculating runoff volume, which is the method we use.
5. is the runoff from all of the 2nd bridge collected and treated? This question
should be answered by the delineation of the drainage area for each infiltration
facility.
Linda
of 1 4/7/2006 1 1:54 AM

P
NC DEPARTMENT OF TRANSPORTATION
Transmittal Slip
Date:3 1l D
To: Mrs. Linda Lewis
NCDENR
Courier: 04-16-33
From: Ray Lovinggood, P.E.
NCDOT Hydraulics Unit
TIP: R-2245 BRUNSWICK CO.
The following is transmitted for your use. If you have any questions
or comments, please contact me at 250-4100.
i—i Drainage Plans (cadd files)
I ] Drainage Plans (redlines)
r Bridge Reports
i Culvert Reports
I -a Detour Bridge Reports
I i Construction Sequence (box culverts)
r, Pipe Data Sheets
1 i Structure Survey Recommendations
r Pipe Material Recommendations
r Permit Action Letter (cc)
ri Drainage Structure & Grate Summary
G Other
Comments:
Davis Canal and ICWW
Set of roadway plans
Roadway plans consists of:
Title Sheet, sheets 1-B, 2, 2-A, 2-B, 2-C, 2-D
An unnumbered sheet showing detail of infiltration basin and swales near ICWW bridge
Plan sheets 4-26
Profile sheets 27-38

J
lid L= L%�Z—� Ili 1 U= M= C=1 R.w"'I!"3D E!
S&ME
"IN -SITU" CONSTANT HEAD I'MMEAMETER
Ua te: 9/16/2004
Location: Ksat 6
Horizon: C
Client: NCDO'r
Project Name: Oak Island NCDOT Project
Project 4: 1051-04-188
Ksat = CQI(2Pile)
C = sinit'r (111r) - 1(r111)1 + I I" + r/ll
Hole De the
1.83
Feet
Hole Radius (r):
0.09
Feet
Bubble Tube to Surface:
0.25
Feet
Reference Tube to Bole Bottom 1) :
2.08
Feet
Water Depth in hole 11 :
0.16
Feet
CIIT Tubc(s) Setting (1h):
L92
Feet
Chamber Used: 0.11 - I t�
Initial Waterin hole: 0.16 Fcct
Final Water in hole: 0.16 beet
sink` = inverse hyperbolic sin of a number
I1 = I[eight of water in hole (cm)
r = radius of hole (cm)
Q — Constant Flow Rate (GaUday)
= Cross Sectional Area of Resevior x Length of Drop in Water Column over Time
r — 0.08 ft
Time
Drop in Water Column (ft)
11= 0.16 ft
0-5 min.
0.492 'rime (min) = 5
5 - 10 min.
0.705
C = 0.83
12 - 17 min.
0.837
Q = 187.49 Gallons/Day
17 - 22 min.
0.754
23 - 28 train.
0.902
28 - 33 min.
0.722
34 - 39 min.
0.840
39 - 43 min.
0.748
Avg.
0.770
Cross Sectional Area = O.l l fl,
Length of Drop in Water Column = 221.76 ft/day
Ksat = 062.85 Gallons/Day/ft2
Inches/flour= 64.36
Note: Ksat calculations are based on average drop in Water Column (ft) after equilibrium is reached.
Prepared by: 5&Mt:. Inc.
Martin Mahe
adjustable
rur tube
constant -head
tube
flow measuring
ht
• reservoir
J
h
reference level
d
constant water level I)
H�
rz2
u. rarEurnx
Page 6 9120104

S&ME, INC.
SOIL PROFILE DESCRIPTIONS 1 C W W SITE
Client:
North Carolina DOT
Date:
9-16-04
Project Name:
Oak Island
Project No.
1051-04-188
County:
Brunswick
State
NC
Location:
Oak Island, NC
Site/Field No.
Ksat-6
Soil Series:
Wando Variant
Apparent Water Table:
>72 Inches
Seasonal High Water Table:
>72 Inches
Vegetation:
Pines & Oaks
Slope:
0-1 %
Boring Terminated at
72 Inches
Horizon
Depth
Matrix
Mottles
Texture
Structure
Consistence
Boundary
O
2-0
-
-
sl
-
-
cs
A
0-5
10YR 7/1
-
s
sg
ml
gw
C 1
5-8
10YR 7/4
-
s
sg
ml
gw
C2
8-17
2.5Y 7/6
-
s
sg
m1
gw
C3
17-25
2.5Y 6/6
-
s
sg
ml
gw
C4
2546
2.5Y 7/3
-
s
sg
ml
gw
C5
46-72+
2.5Y 8/2
-
s
sg
ml
-
COMMENTS: LEGEND: Attached at the end of logs
DESCRIBED BY: Rob Willcox DATE 9-16-04

Date: 9/ 17/2004
Location-. Ksat 3
Horizon. C
Client: NCDOT
Project Name: Oak Island NCDOT Project
Project4: 1051-04-188
OMM - 'Plum 1. 1=11 R'MWJ MM71 1 81 U t
S&ME
"IN -SITU" CONSTANT1IIsAD PERNW,AMETER
Hole Ile the
2.08
Feet
Hole Radius (r):
0.08
Feet
Bubble Tube to Surface:
0.25
Feet
Reference Tube to Itole Bottom U :
2.33
Fcel
Water De th in Hole 11 :
0.16
Fee!
CRT Tubc(s) Setting (IN):
2.17
Feet
Chamber Used:
0•11 V
PtZ
Ksat = CQ/(2Pile)
Initial Water in hole: 0.16 Feet
Final Water in Hole: 0,16 Feet
C = sinh-I (ll/r) - l(r/11)2 + I]" + r/11
sinli t = inverse hyperbolic sin of a number
11 = Height of water in hole (cm)
r = radius of hole (cm)
Q = Constant Flow Rate (Gal/day)
= Cross Sectional Area of Resevior x Length
of Drop in Water Column over Time
r= 0.08 ft
Time
.Drop in Water Column (ft)
H = 0.16 ft
0-5 min.
0.269 Time (min) = 5
5 - 10 min.
0.259
C = 0.83
10 - 15 min,
0.311
Q = 67.77 Gallons/Day
15 - 20 min.
0.262
20 - 25 min,
0.262
Avg.
0.278
Cross Sectional Area = 0.11 ft2
Length of Drop in Water Column = 80.16 May
Ksat = 348.04 Gallons/Day/ft2
Inches/Ilaur= 23.26
Note: Ksat calculations are based on average drop in Water Column (ft) after equilibrium is reached.
Prepared by; MME, Inc,
Martin Mabe
adjustable
wr tube
constant -brad
tube
hI
t
(]ow measuring
reSerVnif
h2
atetence level
constant water level
b
]t
. s
n.IefaMEABce IAvex
Page 3 9RD/04

Client:
Project Name:
County:
Location:
Soil Series:
Apparent Water Table:
Vegetation:
Boring Terminated at
S&ME, INC. SOIL PROFILE DESCRIPTIONS DAV 15 CAWAL
North Carolina DOT Date: 9-17-04 -
Oak Island Project No. 1051-04-18 8
Brunswick State NC
Oak Island NC Site/Field No. _ Ksat-3
Fill
>72 Inches Seasonal High Water Table: >72 Inches
R/W
72 Inches
Slope: 1-2 %
Horizon
Depth
Matrix
Mottles
Texture
Structure
Consistencea
Boundary
Fill
0-10
1OYR 6/3
-
s
sg
ml
cw
Fill
10-21
10YR 5/6
-
s
sg
ml
gw
Fill
21-27
10YR 3/3
-
s
sg
ml
gw
C1
27-35
2.5Y 616
-
s
sg
ml
gw
C2
35-43
2.5Y 6/4
-
s
sg
ml
gw
C3
43-72+
2.5Y 6/6
-
s
sg
MI
-
CONE'v=S:
LEGEND: Attached at the end of logs
DESCRIBED BY: Rob Willcox DATE 9-17-04

& STATE OF NORTH CAROLINA SUBJECT ti if'q A M 5 @Z- PROJECT
DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
HIGHWAY BUILDING
P. O. BOX 25201
K--NEIGH. NORTH CAROLINA 27611
COUNTY
PREPARED BY ��DL DATE 2 Z ijo'/ STATION
CHECKED BY M(p . DATE - STR NO SHEET- OF-
SO-01

R2245 Weir and Infiltration -Coupled Type 11124-hr WQV Rainfall= 1. 70"
Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net
�H droCAD® 7.00 sln 000000 © 1986-2003 Applied Microcomputer Systems 11 /22/2005
Hydrograph for Pond 2P: Infiltration Basin, South
Time
Inflow
Storage
Elevation
Outflow
Primary
Secondary
(hours)
(cfs)
(cubic -feet)
(feet)
(cfs)
(cfs)
_ (cfs)_
0:00
0.00
0
23.00
0.00
0.00
0.00
1.00
0.00
0
23.00
0.00
0,00
0.00
2.00
0.00
0
23.00
0.00
0,00
.0.00
3.00
0.00
2
23.00
0.00
0.00
0.00
4.00
0.01
17
23,00
0.00
0,00
0.00
5.00
0.01
40
23.01
0.01.
0.01
0.00
6.00
0.02
70
23.01
0.01
0.01
0.00
7.00
0.03
110
23.02
0.02
0.02
0.00
8.00
0.04
168
23.04
0.02'
0.02
0.00
9.00
0.07
256
23.05
0.04
0.04
0.00
10.00
0.10
388
23.08
0.06
0.06
0,00
11.00
0.16
588
23.12
0.09
0.09
0.00
12.00
1.64
1,689
23.35
0.25
0.25
0.00
13.00
0.20
2,898
23.59
0.42
0.42
0.00
14.00
0.13
2,136
23.45
0.32
0.32
0.00
15.00
0.10
1,556
23.33
0.23
0.23
0.00
16.00
0.07
1,136
23,24
0.17
0,17
0.00
17.00
0.05
831
23,17
0.12
0.12
0.00
18.00
0.04
618
23.13
0.09
0.09
0.00
19.00
0.04
469
23.10
0.07
0.07
0.00
20.00
0.03
371
23.08
0.05
0.05
0.00
21,00
0.03
304
23.06
0.05
0.05
0.00
22,00
0.03
258
23.05
0.04
0.04
0,00
23.00
0.02
222
23.05
0.03
0.03
0,00
24.00
0.02
194
23.04
0.03
0.03
0.00
25.00
0.00
117
23.02
0.02
0.02
0.00
26.00
0.00
69
23.01
0.01
0.01
0.00
27.00
0.00
40
23.01
0.01
0.01
0.00
pR Q W D D t r N C
r� 28.00
0.00
24
23.00
0.00
0.00
0.00
29.00
0.00
14
23.00
0.00
0.00
0.00
30.00
0,00
8
23.00
0.00
0.00
0.00
31.00
0.00
5
23.00
0.00
0.00
0.00
32.00
0.00
3
23.00
0.00
0.00
0.00
33.00
0,00
2
23.00
0,00
0,00
0.00
34.00
0.00
1
23.00
0.00
0,00
0.00
35.00
0.00
1
23.00
0.00
0.00
0.00
36.00
0.00
0
23.00
0,00
0,00
0.00
37.00
0.00
0
23.00
0.00
0,00
Q.00
38.00
0.00
0
23.00
0.00
0.00
0.00
39.00
0.00
0
23.00
0.00
0.00
0.00
40.00
0.00
0
23.00
0.00
0.00
0.00
41.00
0.00
0
23.00
0.00
0.00
0.00
42.00
0.00
0
23.00
0.00
0.00
0.00
43.00
0.00
0
23.00
0.00
0.00
0.00
44.00
0.00
0
23.00
0.00
0.00
0.00
46.00
0.00
0
23.00
0.00
0,00
0.00
47,00
0.00
0
23.00
0.00
0.00
0.00
} 48.00
0.00
0
23.00
0.00
0,00
0.00
M

STG1RMWATER MANAGEMENT PLAN
R-2245, State Project 34407.1 Date: 6 APR 05
Brunswick County
Hydraulics Project Manager: Max S. Price, PE
ROADWAY DESCRIPTION
The project constructs a new, second, route to Oak Island. It begins by widening the
existing two lane Middleton Avenue on Oak Island and runs north, crossing the Atlantic
Intracoastal Waterway with a new high rise bridge; continuing on a new route on the
mainland. It terminates at the intersection of NC-211 and SR 1500, Midway Road. The
overall length of the project is 4.52 miles with 0.92 miles on Oak Island and the
remaining 3.60 miles on the mainland.
Starting near the ocean, the initial 1,700.feet of the project maintains two lanes, but
widens the road from 20 feet to 22 feet and adds 4 foot wide paved shoulder to both
sides. The road then begins a taper, widening to provide 5 lanes up to the southern end of
the bridge over the Intracoastal Waterway. From this pointtothe northern terminus, the
road provides two lanes in each direction with a raised median separating the traffic.
On the island, the roadway crosses Davis Canal. The project will cross the canal at the
same location, but with a new bridge. The roadway will be closed during construction of
the new bridpae.
The majority of
the two bridges.
the'roadway uses open shoulders. Gutters are used only on approaches
On the mainland portion of the project, the 1'7.5 foot wide median is raised, with conerei
curb and gutter bordering the mounded, grassy rnedian. The typical section shows the`
pavement slopes away from tlieinedian, draining to the grass shoulders and fill slopes.
All fill slopes are 3:1 or flatter except in wetland areas where they are held to 3:1.
A third major stream crossing occurs on NC-211, approximately 540 feet east of the
intersection with SR 1500. There, an existing box culvert will be removed and replaced
with a larger culvert.
ENVIRONMENTAL DESCRIPTION!
Land Use
Beach homes dominate the project area on Oak Island while the corridor on the mainland
remains undeveloped. Not far off the mainland corridor, development of the St. James
community continues, pushing towards the project route. Along NC-211, at the northern
".. ?: r• r:,i,-sr^.;':•`l
Topography and Water Resources
The project is located in the Lumber River Basin in the Coastal Plain Physio-raphic
Province. Elevations in the project area range from a lo',v of near seven feet to a high of

R-2245 BMP's
6 APR 05
approximately 63 feet. The minimum elevation occurs on Oak Island near the ocean and
the maximum elevation occurs between the two largest Carolina Bays in the central
portion of the project area. North of the apex, the elevation drops to about 45 feet at the
intersection of the —L- line with NC-211, creating a slope of about 2 percent. South of
the apex, the elevation drops to sea level at the Atlantic Intracoastal Waterway, giving a
slope of about 8 percent. Descending the scarp to the Quaternary -aged deposits largely
accounts for the steeper slope. Soils in the southern portion of the project area are better
drained than in the northern part.
The project —L- line crosses three jurisdictional surface waters: Davis Canal on Oak
Island; the Atlantic Intracoastal Waterway which separates Oak Island from the
mainland-, and, a small, unnamed tributary on the mainland. NC-211 (-Y7-) crosses
"River Swamp" with an existing box culvert. Both Davis Canal and the Intracoastal
Waterway are SA waters. The unnamed tributary, an intermittent channel through a
wetland, is not classified, but it drains to the Intracoastal waterway. This channel will be
carried under the —L- line by two 60" diameter concrete pipes, both set one foot below
natural ground level. Approximately 247 feet of this stream will be permanently
impacted due to the crossing and about 0.009 acres of permanent surface water impacts
will also result from the crossing. We estimate temporary surface water impacts at this
site will measure 0.002 acres.
River Swamp has been classified as C and Sw water. Currently, water runs through a
culvert of two different sizes; it appear to have been built with an initial size of 6'wide by
4' high, then extended on both ends with a size of 6' wide by 5' high.- The extensions,
each measuring about 7 feet in length, maintain the same top slab elevation, but use
bottom slabs that drop one foot below the central, smaller portion. The project will
replace this multi -sized culvert with one 10' wide by 8' high box culvert. The larger size
will convey stormwater runoff expected from the developing area. Estimated impacts
include: 0.010 acres surface water (permanent impact); 0,010 acres surface water
(temporary impact); 40 feet of channel impact (permanent); and, 58 feet of channel
impact (temporary.)
3 i weuand sites wiii be crossed by the pt-oject With 1,111 sections, impacting the wetlands
with permanent roadway fill and mechanized clearing. One small wetland area, located
in the southwest quadrant of the —L- line intersection with NC-211 will require a roadway
ditch. There is an existing ditch, presently within the wetland, running along the south
side of NC-211 and the project will require this ditch to be pushed out from 10 to 15 feet
further into the wetland.
Total impacts to wetlands caused by permanent fill are estimated at 17.808 acres.
b1161-1�3fxd\i�5:(ri�l�'.. i A A _� . _ ES AND l`'LriJ:;� STRUCTURES -
Best Management Practices (BMPs) and measures used on the project are an attempt to
primary BMP is the use of grassed shoulders? as apposed to a curb and gainer raadway
drainage system. Rip rap fined ditches are used only near the stream under ITC-211.
There, the stream banks are lined with rip rap where the two roadside ditches flow down

R-2245 SMP's
6 APR 05
the banks and into the channel. On the mainland, the outside shoulders and fillslopesare
grass; requirtng no stormwater collection systerr�. Along the median in the curves, inlets'
�v_
intercept stornz water and pipe it to the toe of slope There, the stormwater will infiltrate
into the existing soils. —Rip ap pads are used at each outlet to aid in energy attenuation
and flow dispersal. Most.inlets are singlT inlet cset ollecting small areas of roadway
runoff, and discharging the small flow to the adjacent land. The largest system on the
mainland consists of three inlets and one outlet. This design was used to keep the outlet
outside of a wetland area.
The one jurisdictional stream crossing on the mainland by the —L- line will be made by
using two 60" concrete pipe culverts. These culverts will be placed one foot below
natural ground level.
In the wetland areas, 48" concrete pipes are placed across the —L- line to promote
equalization of water levels. Typical spacing is 200 feet and, as for the pipe culvert,
these pipes will be placed one foot below natural ground level.
The new bridge crossing Davis Canal will carry stormwater in the shoulder area to inlets
off of the bridge on the northern end. From there, the water will be conveyed to a
"splitter box", dividing the first flush to "infiltration chambers." The first flush,
consisting of the runoff from the first 1.5 inch of rainfall, will enter the buried chambers
and infiltrate into the sandy soil. The bypass flow will be diverted away from the
infiltration chambers and will flow through a grass swale to the Davis Canal. The swale
length is greater than 170'.
The new bridge crossing the Intracoastal Waterway will carry stormwater in the shoulder
area, just like the Davis Canal bridge. And as with the Davis Canal bridge, no deck
drains will be allowed. Off the southern end of the bridge, storm water will be collected
in a series of inlets and piped to a splitter box, similar to the one for the Davis Canal.
Here, the runoff from the first 1.5 inch of rainfall will be directed to an infiltration basin.
Bypass flows will be directed to an infiltration channel, located along both sides of the
fill slopes for the southern approach to the bridge. Based on the topography and sandy
soils, bridge deck stornl water runoff will not enter SA waters except during large rainfall
events, probably exceeded the 50 year event.
Stormwater from the northern end of the bridge collects in inlets off of the bridge deck
and is piped to an outlet on the west side of the fill slope. At this location, the roadway is
built atop of a sandy spoil pile created by construction and dredging of the Intracoastal
Waterway. A soil boring and, resultant testing sl,;ow a ii!`5i"i 'E.-r' 3 -;m!h—atlon will occur,
Therefore, no additional devices, such as the "storm chambers" used on the Davis Canal
or the infiltration basin used for the southern half of the Intracoastal Waterway bridge,
are necessary. During large storm events, if the runoff does not infiltrate, it will sheet
flow towards anon -jurisdictional pond within the spoil pile area, located al)proximate]v
350' west from the pipe outlet.'

. 10
STA&
aT"
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
Stormwater Section
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405
ATTN-. Linda Lewis
Dear Madam:
LYNDO TIPPETT
SECRETARY
December 29, 2005 Xe
S
r� 2
Subject: Stormwater Permit Application, Second Bridge to Oak Island from SR 1104 (Beach Drive)
to NC 211, Brunswick County, TIP No. R-2245, State Project No. 8.2231201. $420.00 Debit
work order 8-2231201, WBS Element 34407.1.1
The North Carolina Department of Transportation (NCDOT) proposes to construct a second bridge to
Oak Island on new location from SR 1104 to NC 211 in Brunswick County- The NCDOT will be
applying for a Section 404, 401, and CAMA permits in the near future.
Please find enclosed a stormwater permit application form, stormwater management narrative, infiltration
supplements, and one copy of the project plans. Please review this project for authorization by your
section of NCDWQ. If you have any questions regarding this project or need additional information,
please contact Mr. Max Price of NCDOT Hydraulics Unit at [phone], or Mr. Brett Feulner of
NCDOT Project Development and Environmental Analysis Branch at [phone].
Sincerely,
�� ?c 14Q�c
Gregory J. Thorpe, Ph.D., Environmental Management Director
Project Development and Environmental Analysis Branch
W/out attachment
Dr. David Chang, Hydraulics
Mr. Dave Timpy, USACE, Washington
RECEIVED
Mr. Brian Wrenn, NCDWQ
Mr. Steve Sollod, NCDCM
JAN 0 6- 2006
Mr. Bill Arrington, NCDCM
Mr. Joseph Qubain, PDEA
File
MAILING ADDRESS:
TELEPHONE: [phone]
NC DEPARTMENT OF TRANSPORTATION
FAX: [phone] -
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
1598 MAIL SERVICE CENTER WEBSITE. WWWDON.DOT.STATE.NC.US
RALEIGH NC 27699-1598
LOCATION:
2728 CAPITOL BOULEVARD
PARKER LINCOLN BUILDING, SUITE 168
RALEIGH NC 27699

r
JUSTIFICATION FOR CERTAIN REQUIREMENTS ON
. REQUIRED ITEM CHECKLIST NOT BEING MET
R-2245, State Project 34407.1 Date: 14 NOV 05
Brunswick County
Hydraulics Project Manager: Max S. Price, PE
DAVIS CANAL BRIDGE
Item h. System is not sited on or in fill material or DWQ approval has been
obtained.
The location for the infiltration chambers was discussed with regional DWQ staff.
Item n. A pretreatment device (filter strip, grassed swale, sediment trap, etc.) is
provided.
The proposed drainage area is comprised entirely of bridge deck and paved shoulder.
Sedimentation should not be a problem, and large debris will be prevented from entering
the system by the bridge deck drain size and grated inlets.
Item o. Trench bottom is covered with a layer of clean sand to an average depth of
4 inches.
The storm chambers will be bedded on a minimum of six inches of washed no. 57 stone.
Item r. Side to bottom ratio is less than 4:1.
The storm chambers are buried in a trench that will have vertical walls and backfilled
with native, sandy material. There will not be an open trench or swale providing
infiltration with this installation.
INTRACOASTAL WATERWAY BRIDGE
Item 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed
swale or sediment trap is provided.
The proposed drainage area is comprised entirely of bridge deck and paved shoulder.
Sedimentation should not be a problem, and large debris will be prevented from entering
the system by the bridge deck drain size and grated inlets.

R-2245 Stormwater Management Permit Application
Item n. Vegetated filter is provided for overflow and detail is shown on plans
(Requred minimum length is 50 feet for SA waters, 30 feet for other waters).
The proposed design provides for infiltration of the overflow and does not convey the
overflow to any receiving channel or body of water. The overflow "swales" are similar
to the main infiltration basin, but uses side slopes of 4:1 rather than the 6:1 in the main
basin. The steeper sides were required to fit the swales in the available space.

NOR TH CAROLINA
BRUNSWICK
COUNTY
PROJECT
LOCATION
NCDOT
®`L � � � ®� DIVISION OF HIGHWAYS
sRUNSWICK COUNTY
PROJECT 34407.1.1 (R-2245)
MAPSECOND BRIDGE TO
OAK ISLAND
SHEET OF

SITE
AP
I Of l<
Q BOT-liffiffl)11
DIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 34407.1.1 (R-2245)
NEW ROUTE FROM SR 1104
(BEACH DR) TO NC 211
(SECOND BRIDGE TO OAK ISLAND)

NCD®T
SITEDIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 34407.1.1 (R-2245)
MAP NEW ROUTE FROM SR 1104
(BEACH DR) TO NC 211
2 (o 4 (SECOND BRIDGE TO OAS. ISLAND)
SHEET OF

NCI@OT
SITEDIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 34407.1.1 (R-2245)
MAP NEW ROUTE FROM SR 1104
(BEACH DR) TO NC 211
3 ®f 1 (SECOND BRIDGE TO OAK ISLAND)
SHEET OF

DIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 54407.1.1 (R-2245)
NEW ROUTE FROM SR 1104
(BEACH DR) TO NC 211
(SECOND BRIDGE TO OAK ISLAND)

PARCEL
PROPERTY E11 TY
NAMES AND
NO. NAMES
OWNERS
ADDRESSES
ADDRESSES
5
BOBBY A. LONDON
129 HELEN AVE.
BESSEMER CITY, NC 28013
7
OAK ISLAND
EAST DOLPHIN DRIVE
ELKS LODGE #2769
OAK ISLAND, NC 28465
8
JAMES A. FERRELL
(no address)
9
HOBOKE, INC.
P.O. BOX 433
-
OAK ISLAND, NC 28465
11
ROBERT ROBBINS
119 SE 1st STREET
OAK ISLAND, NC 28465 _
104
MAS PROPERTIES
131 OCEAN BLVD. WEST
LLC
HOLDEN BEACH, NC 28462
106
LADANE WILLIAMSON
130 N. FRONT STREET, STE 201
WILMINGTON, NC -28401
NCDOT
DIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 54407.1.1 (R-2245)
SECOND BRIDGE TO
OAK ISLAND
SHEET OF

PARCEL
PROPERTY
NAMES AND
NO. NAMES
OWNERS
ADDRESSES
ADDRESSES
(not
BRUNSWICK ELEC
P.O.'BOX 826
numbered) MEMBERSHIP
SHALLOTTE, NC 28459
107
CBS LLC
36 RICHMOND PLAZA HWY 74
ROCKINGHAM, NC 28379
109
YOUNGS GAS
P.O. BOX 14
& GROCERY OF
WINNABOW, NC 28479
WINNABOW INC.
NCDOT
DIVISION OF HIGHWAYS
BRUNSWICK COUNTY
PROJECT 34407.1.1 (R-2245)
SECOND BRIDGE TO
OAK ISLAND
SHEET OF

WETLAND PERMIT IMPACT SUMMARY
WETLANDiMPACTS SURFACE WATERIMPACTS
Site
No.
Station
(From/To)
Structure
Size / Type
Permanent
Fill In
Wetlands
ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac
Mechanized
Clearing
in Wetlands
ac
Hand
Clearing
in
Wetlands
ac)
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
(ft
Existing
Channel
Impacts
Temp.
ft
Natural
Stream
Design
ft
7
ACCESS ROAD 2
CLEARING FOR
0.009
13+65 to 14+05 +1-
FENCE
8
82+10 -L- +1- to
ROADWAY FILL
0.046
0,020
0.014
83+00 -L- +1- LT
"
9
85+95 -L- +/- to
ROADWAY FILL
0.099
0.007
86+65 -L- +/- RT
10
1 88+05 -L- +/- to
ROADWAY FILL
0.108
0.029
0.035
89+75 -L- +/- LT
11
92+65 -L- +/- to
ROADWAY FILL
1.203
0.204
0.151
0.010
0.002
207
52
97+50 -L- +/-
12
108+20 -L- +/- to
ROADWAY FILL
1.013 11
0.159
0.055
112+65 -L- +1-
13
120+85 -L- +1- to
ROADWAY FILL
1 0.029
0.041
0.015
123+05 -L- +1- LT
14
122+85 -L- +1- to
ROADWAY FILL
0.669
0.081
0.023
126+55 -L- +/-
TOTALS, This Sheet:
3,167
0.541
1 0.302
0.010
To-521
207
1 52
R,vl,ed MV05

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size 1 Type
Permanent
Fill In
Wetlands
ac
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
(ac)
Permanent
SW
impacts
(ac
Temp.
SW
impacts
ac
Existing
Channel
Impacts
Permanent
(ft)
Existing
Channel
Impacts
Temp.
(ft
Natural
Stream
Design
(ft
15
127+23 -L- +1- to
ROADWAY FILL
0.003
0.007
0.014
127+85 -L- +1- RT
16
136+35 -L- +1- to
ROADWAY FILL
0.231
0.045
138+30 -L- +1- RT
17
144+25 -L- +1- to
ROADWAY FILL
0.325
0.040
0.030
146+10 -L- +/- LT
18
153+40 -L- +1- to
ROADWAY FILL
0.105
0.042
0.035
155+25 -L- +1- LT
19
159+25 -L- +1- to
ROADWAY FILL
1.070
0.091
163+65 -L- +1-
20
164+55 -L- +1- to
ROADWAY FILL
0.142
0.026
165+70 -L- +1- LT
21
173+70 -L- +1- to
ROADWAY FILL
2.388
0.385
0.125
182+40 -L- +/-
TOTALS, This Sheet:
4.264
0.636
0.204
M Revived 3131105

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(FromlTo)
Structure
Size 1 Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fiilln
Wetlands
ac
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
ac
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
(ft)
Existing
Channel
Impacts
Temp.
(ft)
Natural
Stream
Design
(ft)
22
184+50 -L- +1- to
ROADWAY FILL
1.313
0.243
0.222
191 +85 -L- +l-
23
197+05 -L- +l- to
ROADWAY FILL
0,161
0.021
0.008
197+70 -L- +!-
24
198+55 -L- +l- to
ROADWAY FILL
2.889
0.456
0.089
209+30 -L- +1-
25
208+60 -L- +I- to
ROADWAY FILL
2.497
0.411
0,167
219+90 -L- +/-
26
218+65 -L- +1 to
ROADWAY FILL
0.013
220+45 -L- +1- LT
27
222+25 -L- +1- to
ROADWAY FILL
0.004
0.021
0.007
223+65 -L- +1- RT
28
225+20 -L- +1- to
ROADWAY FILL
0.002
225+65 -L- +1- LT
29
229+50 -L- +1- to
ROADWAY FILL
0.682
0.123
0.019
u-
235+30 -L- +/-
TOTALS, This Sheet:
7.546
1.275
1 0.527
1 -177-7
R-1.ed 3/3V05

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size 1 Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
(ac)
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
ft)
Existing
Channel
Impacts
Temp.
(ft)
Natural
Stream
Design
(ft)
30
229+15 -L- +1- to
ROADWAY FILL
0.687
0.297
0.091
242+45 -L- +1-
31
236+55 -L- +1- to
ROADWAY FILL
0.073
0.015
237+60 -L- +1- LT
`32
SOUTH WEST
ROADWAY FILL
0.514
0.166
CORNER OF -L-
and NC-211
`Drawdown Effect
0.671
33
SOUTH EAST
ROADWAY FILL
0.047
0.050
CORNER OF -L-
and NC-211
34
24+00 -Y7-
10' w x 8' h RCBC
0.009
0.011
34
61
N C-211
35
ACCESS ROAD 2
HAND CLEARING
0.006
15+65 +1- to
FOR
16+45 +1-
RIGHT OF WAY FENCE
TOTALS, This Sheet:
1.992
0.166
0.312
0.147
0.009
0.011
34
61
NOTE: Area of drawdown as a result of moving existing roadway ditch: 0.671 Acres
R-1-d aniroe

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size / Type
Permanent
Fill In
Wetlands
ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
ac
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac
Existing
Channel
Impacts
Permanent
ft
Existing
Channel
Impacts
Temp.
ft
Natural
Stream
Design
ft
*1
16+00-L- +/- to
ROADWAY FILL
0.099
0.039
19+80 -L- +1- LT
"2
15+40 -L- +/- to
ROADWAY FILL
0,162
0.047
19+80 -L- +/- RT
3
20+70 -L- +/- to
CLASS H RIP RAP FILL
0.04.4
0.001
21+20 -L- +/-.
SLOPE PROTECTION
& TEMP. WORK BRIDGE
-4
21+75 -L- +/- to
CLASS II RIP RAP FILL
0.018
0.005
0.001
22+35 -L- +/-
SLOPE PROTECTION
& MECH. CLEARING
5
56+40 -L- +/- to
BRIDGE OVER
60+70 -L- +/-
INTRACOASTAL
0.013
WATERWAY
6
75+40 -L- +/- to
ROADWAY FILL
1,395
0.142
0,075
83+00 -L- +/-
TOTALS, This Sheet:
1.674
0.142
0.161
0.049
0,015
* NOTE: Wetlands at Sites 1, 2, and 4 are Coastal Wetlands
Total impacts to Coastal Wetlands:
Permanent Fill in Coastal Wetlands: 0.279 acres
Hand Clearing in Coastal Wetlands: 0.086 acres
SPECIAL EROSION CONTROL FENCE (TEMPORARY FILL) WILL BE PLACED IN SOME AREAS OF MECH,
CLEARING.
R,M..d 3131105

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From(To)
Structure
Size / Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
ac
Mechanized
Clearing
in Wetlands
ac
Hand
Clearing
in
Wetlands
ac
Permanent
SW
impacts
ac
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
ft
Existing
Channel
Impacts
Temp.
ft
'
Natural
Stream
Design
ft
36
ACCESS ROAD 2
HAND CLEARING
0.040
20+55 +/- to
FOR
21+95 +/-
RIGHT OF WAY FENCE
TOTALS, This Sheet:
0.040
PROJECT TOTALS: 18.643 0.166 2.906 1.381 0.068 0.028 241 113
Revised M1105