20040092 Ver 2_401 Application_20080102

US Army Corps of Engineers
Raleigh Regulatory Field Office
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
Subject:
Application for Nationwide Permit 14 for the Proposed Edwards Mill Road
Extension, Wake County, North Carolina. United States Army Corps of Engineers
(USAGE) Action ID Nos. 200520178 and 200520179; North Carolina Division of
Water Quality (NCDWQ) Project No. 040092.
Dear Sir/Madam:
The City of Raleigh proposes to extend Edwards Mill Road from Trinity Road to NC
54 (Chapel Hill Road). The project was previously authorized under USAGE
Nationwide Permit 14 (Action ID Nos. 200520178 and 200520179). NCDWQ
Section 401 Water Quality Certification and Riparian Buffer Certification were also
issued (NCDWQ Project No. 040092). These authorizations expired on March 17,
2007.
Details of the project that relate to streams, wetlands, and riparian buffers have not
changed since the issuance of the referenced authorizations. The project will impact
Richland Creek through the installation of a 72-inch reinforced concrete pipe culvert
(RCPC) and the extension of an existing 42-inch RCPC, for a total impact of 176
linear feet. There are no jurisdictional wetlands in the project area. Approximately
31,211 square feet of Neuse River riparian buffer will be impacted by the project.
Detailed project information, including proposed mitigation is provided in the
enclosed pre-construction notification form (PCN) and attached design drawings.
The City of Raleigh hereby requests that this project be re-authorized under the
appropriate permits and certifications. If you should have any questions, please feel
free to call me at 919-890-3030.
Sincerely, <
/~
Jed Niffenegger, PE
City of Raleigh
Public Works Department
.JAN 2 2008
Copies:
Len Hill, PE - ARCADIS
file
t; %~~p f+r9gS A1dO ST~ORIYry A E AF2ANCF~

Page 1 of 2
Powell, Donetta
. __
From: Niffenegger, Jed
Sent: Tuesday, November 20, 2007 1:29 PM
To: Powell, Donetta
Subject: FW: DWQ check
~~- DDq ~ y 2
Jed Niffenegger, PE, Project Engineer
City of Raleigh's Public Works Department
Office [phone]
Fax [phone]
ied.niffenegger~ci. raleigh. nc. us
From: Fisher, Laura [mailto:[e-mail]]
Sent: Tuesday, November 20, 2007 12:12 PM
To: Niffenegger, Jed
Subject: FW: DWQ check
Will this work?
From: Riddick, Lindsey
Sent: Tuesday, November 20, 2007 10:19 AM
To: Fisher, Laura
Subject: RE: DWQ check
The following comes from page 2 of 12 of the Pre-construction Notification Form Application Form.
401 Water Quality Certification or Buffer Rules -All information is required unless otherwise stated as
optional. Incomplete applications will be returned. Submit seven collated copies of all USACE Permit
materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center, Raleigh, NC, 27699-
1650. 1f written approval is required or specifically rciluested fora 401 Certification, then anon-refundable
application lee is required. In brief, il~ project imparts include less than one acre of cumulative Weiland/water
impacts and less than 150 feet cumulative impacts to streams, then a fee of $200 is required. If either of these
thresholds is exceeded, then a fee of $47~ is required. A check made out to the North Carolina Division of
~~'ater Quality, ~~ith the specific name ol~ihe proiect or applicant identified, should be stapled to the front of the
application package. For more information, see the DWQ website at
http://h2o.ehnr.state.nc.us/ncwetlands/fees.html. The fee must be attached with the application unless the
applicant is a federal agency in which case the check may be issued from a separate office. In such cases, the
project must be identifiable on the U.S. Treasury check so that it can be credited to the appropriate project. If
written approval is sought solely for Buffer Rules, the application fee does not apply, and the applicant should
clearly state (in a cover letter) that only Buffer Rule approval is sought in writing. Wetlands or waters of the
U.S. may not be impacted prior to issuance or waiver of a Section 401 Water Quality Certification. Upon
receipt of a complete application fora 401 Certification, the Division of Water Quality has 60 days to prepare a
written response to the applicant. This may include a 401 Certification, an on-hold letter pending receipt of
additional requested information, or denial.
From: Fisher, Laura
Sent: Tuesday, November 20, 2007 10:05 AM
l l /20/2007

Office Use Only' Form Version March OS
USACE Action ID No. DWQ No. O ~' ~ ~ o g a V a~-
(lf any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 14
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here:
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ^
II. Applicant Information ®~~~~ D
1. Owner/Applicant Information SAN ~, 200
Name: City of Raleigh __ ~ ~yaTEa~lui~Ulnnr~y~lcti;
Mailing Address: Public Works Department/Engineerin~ ,~„~,r-~~st~®~~~"4~__
Attn: Mr. Jed Niffenegger, PE
P.O. Box 590
Raleigh NC 27602
Telephone Number: [phone] Fax Number: [phone]
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Lindsey Riddick
Company Affiliation: ARCADIS G&M of North Carolina, Inc.
Mailing Address: 801 Corporate Center Drive, Suite 300
Raleigh NC 27607-5073
Telephone Number: [phone] Fax Number:~,919) 854-5448
E-mail Address: Lindsey.riddick(c~arcadis-us.com
Updated 11/1/2005
Page 5 of I S

III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Edwards Mill Road Extension
2. T.I.P. Project Number or State Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN): 0784133348
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number):
Directions to site (include road numbers/names, landmarks, etc.): From the RBC Arena,
travel south on existing Edwards Mill Road until it dead ends. The stream crossing is
approximately 700 feet south of where existing Edwards Mill Road dead ends.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.789 °N 78.72317 °W
6. Property size (acres): 127.91
7. Name of nearest receiving body of water: Richland Creek
8. River Basin: Neuse
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Subject property is forested land approximately 50 years old
with a small cleared area on the western side.
Updated 1 ]/1/2005
Page6of15

10. Describe the overall project in detail, including the type of equipment to be used: The
northern portion of the pro,Lct will consist of widening the existing road. The southern half
of the project consists of approximately 0 25 mile of new location roadway with one stream
crossing The equipment required will be heav~ghway construction equipment, including
dozers with~ans for gradin a crane and track hoes will be used for installation of the
culvert and construction of the footings associated with the culvert. Additionally, standard
grading equipment including backhoes and motor graders paving equipment including
pavers and rollers and a pile driver for guardrail posts will be used.
11. Explain the purpose of the proposed work: To extend Edwards Mill Road from Trinity
Road to NC 54 (Chapel Hill Road)
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. A USACE NWP #14 was issued March 4, 2004 under Action ID
20040558 It was subsequently determined that the project could not be constructed and
maintained as designed The permit was rescinded. The new design was authorized on March
17 2005 by NWP 14 under Action IDs 200520178 & 200520179. NCDWQ Water Quality and
Riparian Buffer Certification (Proiect No 040092) was issued on March 23, 2005. Mitigation
for 176 linear feet of stream and 33,970 ft2 (17 540 ft2 zone 1 and 16 430 ft2 zone 2) of riparian
buffer mitigation was purchased from the NCEEP 'for $114 075.20. The NWP 14 and
accompanying NCDWQ certifications expired on March 17 2007. This application is a request
to re-issue the NWP 14 and accompanying NCDWQ certifications.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
VI. Proposed Impacts to Waters of the United States/Waters of the State
Updated 11/1/2005
Page 7 of 15

It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: One hundred and fifty-six (156
feet of jurisdictional stream channel Richland Creek, is proposed to be impacted by the
road crossing. A 72-inch reinforced concrete pipe (RCP) will be used to convey the
stream under the proposed road. At that location (Sta. 23+25), the proposed crossing is a
4-lane undivided highway and sidewalks. In addition, 20 feet of jurisdictional channel,
Richland Creek will be impacted by the extension of an existing 42-inch RCP (Sta. -Y-
12+60). The existing_pipe conveys Richland Creek under NC 54. Finall ~~approximately
15 718 ft2 (0 36 ac) of forested land within zone 1 and 15 493 ft2 (0.356 ac) of forested
land within zone 2 of the designated Neuse River riparian buffers will be impacted. The
buffer impacts are associated with the proposed stream crossing, extension of the existing
culvert and encroachment in other locations. There are no jurisdictional wetlands
associated with the project area• therefore there are no jurisdictional wetland impacts.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
cenarately list impacts clue to hcth stn~cture and flncdin~_
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
(yes/no) Distance to
Nearest
Stream
(linear feet) Area of
Impact
(acres)

Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property:
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
Updated 11/1/2005
Page 8 of 15

walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
mnct he included_ Tn calculate acrea¢e_ multiply length X wdth_ then divide by 43.560.
Stream Impact
Number
(indicate on ma)
Stream Name
Type of Impact Perennial or
Intermittent? Average
Stream Width
Before Im act Impact
Length
(linear feet) Area of
Impact
(acres)
1 Richland Creek 72-inch RCP Perennial 10 156 0.036
2 Richland Creek 42-inch RCP Perennial 5 20 0.002

Total Stream Impact (by length and acreage) 176 0.038
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill excavatinn_ drerluins~_ flnndin¢_ drainage_ hnikheads_ etc_
Open Water Impact
Site Number
(indicate on map) Name of Waterbody
(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc.) Area of
Impact
(acres)

Total Open Water Impact (acres)
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres): 0.038
Wetland Impact (acres): 0.0
Open Water Impact (acres): 0.0
Total Impact to Waters of the U.S. (acres) 0.038
Total Stream Impact (linear feet): 176
7. Isolated Waters
Do any isolated waters exist on the property? ^ Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USAGE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands
Updated 11/1/2005
Page 9 of 15

Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Proposed use or purpose of pond (e.g., livestock watering,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
irrigation, aesthetic, trout pond,
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. Due to the linear nature of the
project and relatively narrow area available for the project impacts to jurisdictional resources
can only be completely avoided b~plementation of a no-build scenario.
In order to remain within the property currently owned by the State of North Carolina and within
the City of Raleigh's permanent easement it is necessary to make a road crossing of Richland
Creek The location of the crossing was chosen such that a perpendicular crossing could be
made while keeping the proposed roadway as strai h~ t as possible Due to the alignment of
Richland Creek and one of its unnamed tributaries it is not possible to reali ng the proposed road
without creating, anon-perpendicular crossing of the creek(s). Perpendicular crossings minimize
the impacts to the stream.
The extension of the existing culvert on Richland Creek under NC 54 is necessary to
accommodate improvements to NC 54 at the proposed intersection with Edwards Mill Road.
The road cannot be realigned to the east to avoid impacts associated with the culvert extension,
since this would create an off-set intersection with a future road proposed for construction south
of NC 54. An off-set intersection could potentiallygenerate unsafe driving conditions.
At the proposed stream crossing there are unavoidable riparian buffer impacts. The buffer
impacts at the stream crossing have been minimized by designing an undivided highway from
the existing Edwards Mill Road terminus south through the riparian buffer at the Richland Creek
crossing. South of the buffer the proposed road will be a divided highway. A preformed scour
hole at the discharge of a stormwater pipe will be located in the riparian buffer just south of the
stream crossing. Due to the topography and need to maintain a perpendicular stream crossing, it
is not possible to relocate the proposed outfall to another location or outside of the riparian
buffer.
There are also buffer impacts along NC 54 which are associated with the need for the culvert
extension as described above Buffer impacts have been minimized through the use of 2:1 fill-
slopes where the road is proposed for widening. The widenin /gimprovements to NC 54 include
the relocation and upgrades to the existing road-side ditch on the south-side of NC 54. The ditch
is currently undersized for its drainage area and is severely eroded. The new ditch will consist of
Updated 11/1/2005
Page 10 of 15

arip-rapped channel and will be located at the base of the proposed fill-slope. Due to the
volume of water that will flow in the ditch steepness of slope, and limited area available for
construction it is not feasible to create alevel-spreader or retention structure prior to the ditch
entering the riparian buffer.
Riparian buffer will be impacted immediately south of the existing Edwards Mill Road terminus.
At this location Richland Creek parallels existing Edwards Mill Road and the proposed extension
along_the road's eastern edge. To avoid impacts to the riparian buffer, all proposed widening of
the existing road is planned to the west side away from Richland Creek. The proposed road
extension cannot be relocated further west because of potential impacts to existing housing and
the narrow approach corridor available to create the proposed perpendicular crossing of Richland
Creek Also changes in the proposed alignment to avoid riparian buffer impacts while
maintaining the perpendicular crossing of Richland Creek are unacceptable, since it would create
a sharp curve that could generate potentially unsafe driving conditions according to national and
state safety_guidelines. A stormwater outfall will be located in the riparian buffer near Sta.
27+50 The outfall will consist of a riprapped ditch leading to Richland Creek. Due to the
topography it is not feasible to relocate the outfall and there is not enough area available for the
construction of apreformed scour hole.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina (see DWQ website for most current
version.).
Updated 11/1/2005
Page 11 of 15

1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
As noted in Section IV, mitigation for 176 linear feet of stream and 33,970 ft2 (17,540 ft2
slightly less than the 33 970 ft that was previously mitigated for. Actual impacts are 15,718
ft2 of forested land within zone 1 and 15 493 ft2 of forested land within zone 2 for a total of
31.211 ft2. At 3:1 mitigation to impacts in_zone 1 and 1.5:1 mitigation to impacts in zone 2,
zone 1 and 16 430 ft2 zone 2) of r~arian buffer impact was purchased from the NCEEP for
$114 075 20 Stream impacts and proposed mitigation remain unchanged from the time of
the on ig nal permit issuance Actual proposed riparian buffer impacts for the project are
2
the City of Raleigh proposes to utilize 70 393 5 ft` of the previously purchased riparian
buffer mitigation to compensate for riparian buffer impacts These impacts have not changed
since the issuance of the original permit issuance in March 2005 however, the NCDWQ
water quality and riparian buffer certification contained incorrect impact totals and therefore
remiirerl adrlitinnal mitigation_ The City of Raleigh will request a refund from the NCEEP in
the amount of $10.417.44 to cover 10,851 ft` of unnecessary buffer mitigation.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the .applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http•//www nceep net/pages/inlieureplace.htm. If use of the NCEEP is proposed,
please check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): 176 (previouslypurchased)
Amount of buffer mitigation requested (square feet): 70 393.5 ft2 (previously purchased)
Amount of Riparian wetland mitigation requested (acres): 0.0
Amount ofNon-riparian wetland mitigation requested (acres): 0.0
Amount of Coastal wetland mitigation requested (acres): 0.0
IX.
Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ^
Updated 11/1/2005
Page 12 of 15

2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ^ No
X.
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^
Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ^
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact Multiplier Required
(s uare feet) Miti ation
1 15,718 3 (2 for Catawba) 47,154
2 15,493 1.5 23,239.5
Total 31,211 70,393.5
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
XI.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. Miti atg ion proposed is the same as was
provided previously. but never used due to unexpected delays in the design and construction
process. A copy of NCEEP acceptance and Check No. 00577769 is included as proof of
mitigation.
Stormwater (required by DWQ)
Updated 11/1/2005
Page 13 of 15

Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. The project corridor is approximately 3,900 feet
in length with an average width of 150 feet resulting in an area of about 13 acres. The existing
impervious area consists of an existing three lane roadway, about 1,800 feet in length, 40 feet in
width, and about 1.7 acres in area and is located in the northern portion of the site. The
remainder of the corridor is wooded and undeveloped. The proposed roadway will consist of four
travel lanes, divided and undivided, with a grass median where divided, a sidewalk on one side,
and a paved bike path on the other side. This will result in an additiona13.5 acres of impervious
area.
The existing roadwa~is parallel to Richland Creek, which is located approximately 350 feet to
the east. The existing roadway includes an under round pipe storm drainage system that
discharges either directly into the stream or into ditches that flow directly to the stream. The
proposed storm drainage system for the widening/improvements in this section of the project will
tie to the existin doge system and will not include any additional discharge locations.
The southern half of the project is a new road located approximately 150 feet east of Richland
Creek. The proposed storm drainage system will consist of curb inlets with individual discharge
points located upstream of the riparian buffers along Richland Creek. These dischar eg s will
include a preformed scour hole to reduce flow rates and thus erosion and flooding_potentials.
The preformed scour hole will also function to spread out the water flow prior to reaching the
riparian buffer. Uptake of nutrients b~plants in the riparian buffer will attenuate any nutrient
loading. Due to limitations from topography, large size of drainage area, anticipated rate of
flow, and land available for construction, one outfall on the new location road and the relocated
ditches along NC 54 will either not havepreformed scour holes and drain directly into the creek
and a third discharge will have its preformed scour hole located within the riparian buffer. A
minimum amount of flow as possible will be handled by these structures. The drainage system,
in general, will be as small as possible to minimize the concentration of flow at the discharge
locations. Temporary sediment traps, silt fence, and temporary diversion ditches may also be
utilized during construction.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
No wastewater is expected to be generated.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Updated 11/1/2005
Page 14 of 15

Is this an after-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
htt~://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
/ ~ ..~,..
Applicant/Agent's Signatu><
(Agent's signature is valid only if an
-/y-u~
Date
from the applicant is provided.)
Updated 11/1/2005
Page 15 of 15

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