20110098 Ver 1_401 Application_20110111

WILDLANllS
January 24, 2011
Ms. Cyndi Karoly
NC DENR
Division of Water Quality, Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
20110098
Subject: Pre-Construction Notification Pursuant to Nationwide Permit No. 27
and Water Quality Certification No. 3689
Double Oaks Stream Improvement Project
Charlotte, North Carolina
PA f
Dear Ms. Karoly:
Please find enclosed five copies of our PCN package for the subject project. We have included the
following supporting data:
• Nationwide Permit No. 27 memo,
• PCN form,
• vicinity, USGS, soil, and site maps, D
• photo log, and ?? r ??„
• 11" x 17" copy of the 60% plan set. 1? W-WATERQUAW,
MWMTER BRA M
The goals of the project are to
• restore and enhance appropriate in-stream and terrestrial habitat,
• improve water quality by reducing nutrient levels and sediment deposition,
• stabilize the stream banks with native vegetation, and
• excavate a floodplain bench.
This same information has been submitted to the Asheville Regulatory Field Office of the US Army Corps
of Engineers. If you have any questions, please call me at [phone].
Sincerely,
MPWS
Environmental Scientist
Enclosure
cc: Mr. Steve Chapin
US Army Corps of Engineers
vViI ?1 . L I'I t,in .ri lly, ir!C +1. 4 0..:? d,h Hi ?re et + ite a. I hair I ot,te, .`,!(. ,_820
Double Oaks Stream Improvement Project
Unnamed Tributary to Irwin Creek
Existing Conditions and Design Summary
Wildlands Engineering is working with LandDesign to develop construction documents for a
stream enhancement project in Charlotte, NC, on an unnamed tributary to Irwin Creek from
Statesville Avenue to a point approximately 1,025 feet downstream. This memorandum provides a
summary of the
1. watershed characteristics,
2. existing geomorphic conditions, and
3. proposed design parameters for the project reach.
1. Watershed & Land Use
The project reach is located in central Mecklenburg County just north of uptown Charlotte as
shown on the attached Vicinity Map (Figure 1). The headwaters of Little Sugar Creek drain the
area east of I-77 and south of I-85, as shown on the Vicinity Map and the attached USGS
Topographic Map (Figure 2). The headwaters of this unnamed tributary drain an area
approximately 105 acres in size located east of the project between Statesville Avenue and North
Graham Street. Downstream of the project site, the unnamed tributary flows west through a large
residential area to its confluence with Irwin Creek, east of Interstate 77. The project site is located
in the Catawba River Basin, HUC 03050103.
The UT to Irwin Creek watershed is located in a highly developed urban setting; approximately
90% of the land in the watershed has been developed. Approximately 56% of the land surface is
impervious. The land uses within the watershed include
• residential (34%),
• industrial (61%), and
• commercial (5%).
The City of Charlotte lies in the Charlotte Belt, which is a geologic zone comprised of
predominantly metavolcanic and plutonic rock types. The geology of the project area is Devonian
and Ordovician age granodiorite rock. The granodiorite is medium-grained, massive to weakly
foliated, and is comprised mainly of plagioclase and quartz (Goldsmith, 1984). Bedrock knick
points were observed in the stream bed downstream of Woodward Avenue and within portions of
the channel bed throughout the remainder of the project corridor.
As shown on the attached Soils Map (Figure 3), the soils found within the project site include
Urban land complex (Ur) and Cecil sandy clay loam soils (CeB2). Urban soils are typically, areas
that have been greatly disturbed and are covered with impervious structures including buildings,
parking lots, and roads. Cecil soils are typically very deep and well-drained upland soils that
formed in residuum from felsic rock. The surface layer of the soil is loamy and the subsoil is
clayey.
Wildlands Engineering, Inc. Page 1
Double Oaks Stream Improvement Project
- r?
2. Existing Stream Conditions
This unnamed tributary to Irwin Creek has historically been straightened and dredged in an attempt
to control flooding and to accommodate adjacent development. The creek banks along this reach
are heavily eroding and vegetation has been consistently managed through clear cutting.
The project reach converges with a section of Irwin Creek that has been listed on the North
Carolina Division of Water Quality's (NCDWQ) 303(d) list since 1998. Section 303(d) of the
Clean Water Act (CWA) requires states to develop a list of waters not meeting water quality
standards or which have impaired uses. The NCDWQ 303(d) list includes violations of impaired
biological integrity, high fecal coliform concentrations, copper, lead, zinc, and turbidity for the
creek.
The project extents are shown on the attached Site Map (Figure 4). The project includes:
• approximately 260 LF of channel between Woodward Avenue and Benson Street culverts
and
• new stream alignment from the Benson Street culvert extending downstream to the
adjacent, existing stormwater BMP (765 LF).
This reach currently classifies as a Rosgen B4c channel. The channel substrate is dominated by
coarse gravel and cobble substrate with bed rock outcrops located throughout the project reach.
These bed rock outcrops provide substantial grade control, preventing further vertical degradation
in portions of the project reach. However, due to the channel's urban setting and lack of suitable
riparian vegetation, the channel exhibits few areas of overwidening along with considerable bank
erosion throughout the project reach. An absolute Rosgen stream classification of urban streams
such as UT to Irwin Creek is difficult due to possible historical channel modification and the
limited ability of the channel to freely adjust to channel-forming flow.
Table 1 summarizes the existing geomorphic conditions of the project reach. Overall, the stream
channel is heavily incised and exhibits overwidening at areas of bed rock outcrops. The bank
height ratio is high throughout the project reach, ranging from 2.2 to 2.9, indicating the incised
condition with a channel separated from its floodplain. The project reach consists of steep well-
developed riffles consisting of gravel to cobble sized substrate. Few deep, well-formed pools were
found along the project reach. The stream banks are heavily eroding and lack suitable stabilizing
vegetation. Typical riparian vegetation includes glossy privet (Ligustrum lucidum), English ivy
(Hedera helix), pawpaw (Asimina triloba) and invasive species of Chinese privet (Ligustrum
sinense) and Japanese honeysuckle (Lonicera japonica). Several mature tree species are present
including tulip tree (Liriodendron tulipifera), black walnut (Juglans nigra), sycamore (Platanus
occidentalis), black gum (Nyssa sylvatica), and red maple (Acer rubrum).
Bankfull Indicators
The bankfull stage indicator along the project reach of UT to Irwin was identified in the field as a
break in slope on a flat depositional feature. This indicator is consistent with other NC urban
Piedmont streams. Bankfull data for the project reach was compared with the NC Piedmont
regionalcurve. Both of the project's riffle cross-sectional areas (X2 and X4) plot at or just below
the NC piedmont urban regional curve data within the scatter of the curve data. This data location
indicates that bankfull stage was adequately selected within acceptable limits.
Wildlands Engineering, Inc. Page 2
Little Troublesome Creek Mitigation Project
The surveyed cross-sections overlaid with the NC regional curve are shown in the attached Figure
5. Manning's equation was used to calculate an approximate bankfull discharge using the cross-
sectional area and overall channel slope for the project reach. These approximate bankfull
discharges are shown overlaid with the NC regional curve in the attached Figure 5.
3. Design Parameters
The Double Oaks stream restoration project consists of three significant sub reaches separated by a
culvert approximately one third down the length of the channel. The stream restoration project will
include adjusting the channel dimension, profile, and pattern. The project will include sections of
Priority 1 and Priority 2 restoration. Portions of the downstream sub-reaches of the channel are
located adjacent to and on top of a sanitary sewer line; so relocating that portion of the channel
away from the sewer line was a priority. The channel also crosses the sanitary sewer near the
downstream extent of the project.
The first sub-reach begins at a culvert outlet at Statesville Avenue and runs to the culvert crossing
under Benson Road. This is a steeper channel with an average slope near 3%. Much of this reach
has limited access to the floodplain with the high right bank being stabilized with old construction
debris. Treatments for this reach include a stable cross-section with an adjacent excavated bankfull
bench. Additional work will include removing the debris, re-grading the slope to a stable angle,
removing the invasive plants, re-grading the channel cross section, and excavating a floodplain
bench. The constructed bankfull bench will be built where possible, and will range in width from
5 feet to 15 feet on one or both sides of the channel. Table 2 summarizes the design parameters for
this reach. In-stream boulder-cobble structures will be used to establish bedform diversity with
riffles and pools. Riparian plants native to the piedmont of NC will be planted on the banks, bench
and floodplain to stabilize the stream corridor and add terrestrial habitat. Additional work adjacent
to the stream includes a greenway trail. One pedestrian bridge crossing is proposed on this reach.
On the second sub-reach extends from the Benson Road culvert approximately 3001f downstream.
This reach will be restored as a Priority 1 channel with the existing ground serving as the
floodplain. Restoration will include changes to the pattern, dimension and profile. In-stream
cobble and boulder structures will be used to establish bedform diversity, improve channel
hydraulics, and to protect the stream banks. The old channel will be completely filled and will
serve as the new floodplain bench for the restored channel. Portions of this reach will be relocated
away from the existing sanitary sewer line which was laid in the bedrock which dominates the
existing channel bed. Invasive species on both banks will be removed through grading with the
entire area being replanted with native seed, live stakes, and bare root plants in the floodplain.
Additional work adjacent to the left bank of the stream includes a proposed greenway trail.
The third sub-reach is the remaining channel from the end of sub-reach two to the end of the
project, restoration of the channel for this sub-reach will be completed as a Priority 1. Restoration
will include changes to the pattern, dimension and profile. In-stream boulder structures will be
used to establish bedform diversity, control grade changes, and to protect the stream banks. The
new channel will be built on top of the old channel in some places due to the topographic
constraints of the site. This reach will also be relocated away from the existing sanitary sewer line
where possible but will cross it perpendicular near the bottom of the project. Invasive species on
Wildlands Engineering, Inc.
Little Troublesome Creek Mitigation Project
Page 3
tf ' l
both banks will be removed through grading with the entire area being replanted with native seed,
live stakes, and bare root plants in the floodplain. Additional work includes a proposed greenway
trail with one pedestrian crossing located near the bottom of the reach.
Wildlands Engineering, Inc. Page 4
Little Troublesome Creek Mitigation Project _
Tn
Table is UT to Irwin Creek Existino Conditions
Notation Units min max
stream type B4c
drainage area DA mi 0.16
NC Urban Regional Curve 97
NC Rural Regional Curve 24
Q _ NFF regression 136
USGS extrapolation 67 114
Mannin s 49 61
bankfull design discharge /?
Qbkf cfs 65
Cross-Section Features
bankfull cross-sectional area Abkf SF 14.7 15.9
averse velocity during bankfull event wbkf fps 4.2
width at bankfull wbkf feet 12.4 13.9
maximum depth at bankfull d ax feet 1.3 1.8
mean depth at bankfull dbkf feet 1.1 1.3
bankfull width to depth ratio wbkddbkf 9.6 13.2
depth ratio d../dbkf 1.2 1.4
low bank height 2.9 5.3
bank height ratio BHR 2.2 2.9
flood prone area width wf feet 18 28
entrenchment ratio ER 1.3 2.3
Sinuosity
valle sloe S',,, feet/ foot 0.0293
channel slope S?h-el feet/ foot 0.0193
sinuosity K 1.3
Riffle Features
riffle slope Same feet/ foot 0.007 0.114
riffle slope ratio S,;ffle/SehBMe 0.4 5.9
Pool Features
of slope s p-, feet/ foot 0.0006 0.0102
pool slope ratio S „1/Seh.-I 0.0 0.5
pool-to-pool spacing L feet 20 72
pool spacing ratio /wbkf 1.6 5.2
maximum of depth at bankfull o, feet 2.6 3.0
pool depth ratio dp..I/dbkf 2.4 2.3
pool width at bankfull w i feet 13.8 15.8
of width ratio w i/wbkf 1.1
of cross-sectional area at bankfull o, SF 22.7 243
pool area ratio A f Abkf 1.5
Pattern Features
belt width wbh feet NA
meander width ratio wbh/wbkf NA
meander length L,,, feet NA
meander length ratio I-hn/Wbkf NA
radius of curvature R feet NA
radius of curvature ratio R./ wbkf NA
Sediment
Particle Size Distribution from Reachwide Count
d50 Very Coarse Gravel
d16 mm 9.7
d35 mm 27.6
d5o mm 42.0
d84 mm 180.0
d95 mm 3068.5
d99 mm >2048
Particle Size Distribution from Pavement Analysis
d,6 mm 6.1
d35 mm 12.0
d5o mm 15.6
ds4 mm 71.1
d95 mm 115.0
d,00 mm 180.0
Particle Size Distribution from Sub vement Analysis
d16 mm NA
d35 mm NA
d5o mm NA
d84 mm NA
d94 min NA
d99 min NA
Notes
NAB: Channel pattern was not assessed due to historical dredging and straightening (Rosgen B-type channel).
NA2: Subpavement samples have not been post-processed.

Table 2: Double Oaks Restoration Geomorp hic Parameters
Double Oaks Reach 1 Double Oaks Reach 2 Double Oaks Reach3 Stable Channel
Notation Units min max min max min max Design Ratios
stream type B3 133c 63 B4
rainage area DA sq mi 0.16 0.16 0.18
design bankfull discharge Qbkf cis 65.00 65 65 65 70 70
bankfull cross-sectional area Abkf SF 14.4 15.0 14.4 15.0 14.4 15.0
average velootty during bankfull
vent vbkr fps 4.5 4.3 4.5 4.3 4 9 4:7 3.5-5.0
m width at bankfull Wbkf feet 14.0 15.0 14.0 15.0 14.0 15.0
IA-
c maximum depth at bankfull d,r,ax feet 1:5 1.5 1.50 1.50 1:60 1.50
3
t; mean depth at bankfull dbkf feet 1.0 1.0 1.0 1.0 1.0 1.0
bankU width to depth: ratio wbk1Jdyu Me 15.0 13.6 15.0 13.6 15.0 12.0-18.0
w depth ratio dmax/dbkf 1.5 1.5 1.5 1.5 1.5 1.5 1.2-1.4
O
rj
bank height ratio
BHR
1.0
1.0
1.0
1.0
1.0
1.0-1.1
floodprone area width Wfpa feet 30 45 30 45 30 75
entrenchment ratio ER 2.1 3.0 2.1 3.0 2.1 5.0
.9 valley slope Salley feet/ foot 0.0310 0.0144 0.0352

c channel slope Sehanw feet/ foot 0.0305 0.0121 0.0330
rn sinuosity K 1.02 1.19 1.07 1.1-1.2
a
.2 riffle slope sm. feet/ foot 0.0336 0.0550 0.0151 0.0212 0.0350 0.0470
y
cal ii
riffle slope ratio
SrlfBe/Schanael
1.1
1.8
1.2
1.8
1.1
1.4
1.1-1.8
pool sloes Spool feet/ foot 0.0000 0.0122 0.000 0.005 0.000 0.0132
pool slope ratio SpoollSchamel 0.0 0.4 0.0 0.4 0.0 0.4 0.0-0.4
pool-to-pool spacing Lp.p feet 21 70 21 45 21 55
H pool spacing ratio Lp_p/Wbkf 1.5 4.7 1.5 3.0 1.5 3.7 1.5-5.0
m

m maximum pool depth at bankfull dpool
feet
2.1
3.0
2.1
3.5
2.10
3:00
u pool depth ratio dpool/dbkf 2.0 2.9 2.0 3.5 2.0 3.0 2.0-15
o pool width at bankfull wpool feet 16.0 17.0 16.0 17.0 16.0 17.0
pool width ratio `/'pool/Wbkf 1.1 1.1 1.1 1.1 1.1 1.1 1.1-1.5
pool cross-sectional area a
bankfull Apool SF 24.0 30.0 24.0 30.0 24.0 30.0
pool area ratio Apoo*bkf 1.7 2.0 1.7 2.0 1.7 2.0 1.7-2.0
belt width wbk feet NA NA NA NA NA NA
m meander width ratio W
/W
bk
bkf

a;
fi
meander length
Lm
feet
NA
NA
NA
NA
NA
NA
E
m
a
meander length ratio
Lm/Wbkf
radius of curvature Ro feet NA NA NA NA NA NA
radius of curvature ratio Rd Wbkf

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Project Corridor Streams
?T- Figure 1. Vicinity Map
Project Watershed Irwin Creek Subbasin Double Oaks Stream
E` E Hydrologic Unit Code (14) Improvement Project
WILDLANDS 0 0.5 1 Miles
I t l i l Mecklenburg County, NC

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Project Corridor Figure 2. USGS Map
Streams Double Oaks Stream
Improvement Project
A '.°°° 2,000 ft
WILDLNDS I it i_JI Mecklenburg County, NC
Proposed Stream Alignment
?T Figure 3. NRCS Soils Map
((? Streams Double Oaks Stream
Tax Parcels Improvement Project
100 200 ft
WILDLANDS 1 I i t I Mecklenburg County, NC
+ Proposed Steam Alignment 4 v ` ? `
1,025 LF
• ??L KC?LERAVE

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Figure 4. Site Map
Streams Double Oaks Stream
Tax Parcels Improvement Project
WILDLANDS 0 100 200 ft
I I I I I Mecklenburg County, NC
North Carolina Piedmont Regional Curve: Bankfull Area
1000
d
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to 100
d
Q ._
u d
v w
10
M
m
1
0.1 1 10 100 1000
Drainage Area )square miles)
? Rural Data • Urban Data ? X2 Riffle
• X4 Riffle -Power (Urban Data) -Power (Rural Data)
North Carolina Piedmont Regional Curve: Discharge
10000
1000 ? i ??
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e 100 I = Y 305.25x` _
u =_ :.! I -j R- = 0.9449 {
89.039x'
10 R- 0.9069
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0.01 01 1 10 100 1000
Drainage Area (square miles)
? Rural Data • Urban Data 4USGS 1.5 yr 4USGS 1.8 yr
? X2 Q-Mannings • X4 Q-Mannings -Power (Urban Data) -Power (Rural Data)
WiLDLANDS
Figure 5. Regional Curve Data
Double Oaks Stream
Improvement Project
Mecklenburg County, NC
20110098
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the

Corps:
®Section 404 Permit ? Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: No. 27 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps? ? Yes ® No
1d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ? Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
? Yes ® No For the record only for Corps Permit:

? Yes ® No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program. ? Yes . ® No
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: Double Oaks Stream Improvement Project
2b. County: Mecklenburg
2c. Nearest municipality / town: Charlotte
2d. Subdivision name: N/A
2e. NCDOT only, T.I.P. or state
project no:
3. Owner Information
3a. Name(s) on Recorded Deed: Double Oaks Development, LLC
3b. Deed Book and Page No. Deed Bk. 22947, pg. 090; Deed Bk. 22805, pg. 464
3c. Responsible Party (for LLC if
applicable): Double Oaks Development, LLC
3d. Street address: 4601 Charlotte Park Dr., Suite 350
3e. City, state, zip: Charlotte, NC 28217
3f. Telephone no.: 704-342-0933
3g. Fax no.: 704-342-2745
3h. Email address:
Page 1 of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ® Other, specify: Financier - Housing Partnership
4b. Name: Steven Cartee
4c. Business name
(if applicable): The Housing Partnership
4d. Street address: 4601 Charlotte Park Drive, Suite 350
4e. City, state, zip: Charlotte, NC 28217
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name: Matt L. Jenkins, PWS
5b. Business name
(if applicable): Wildlands Engineering, Inc.
5c. Street address: 1430 South Mint Sreet, Suite 104
5d. City, state, zip: Charlotte, NC 28203
5e. Telephone no.: 704-332-7754
5f. Fax no.: 704-332-3306
5g. Email address: [e-mail]
Page 2 of 11
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): Linear project includes: 07510537, 07510530, 07511307,
07510529
1 b. Site coordinates (in decimal degrees): Latitude: 35.249678° Longitude: 80.836281 °
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: N/A - linear project
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to Irwin Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: Class C
2c. River basin: Catawba 03050103
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The project is located in an urbanized, fully developed area of the city of Charlotte. Land uses adjacent to the project
corridor include large industrial developments, a cemetery, and a few residential areas. The land use within the project
corridor includes existing roadways, maintained lawns, and narrow thinly wooded stream buffers.
3b. List the total estimated acreage of all existing wetlands on the property:
No jurisdictional wetlands are located within the project area.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
Approximately 1,025 linear feet of perennial stream channel within the project corridor.
3d. Explain the purpose of the proposed project:
The primary goal for the project is to reclaim portions of the natural and beneficial functions of the floodplain and in-
stream structure within the unnamed tributary to Irwin Creek through enhancement and restoration activities.
3e. Describe the overall project in detail, including the type of equipment to be used:
Grading and planting bank slopes with native riparian species, excavation of floodplain bench, excavation of riffle and pool
bedform features, and installation of in-stream boulder structures. A trackhoe will be used for in-stream work.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
®Yes ? NO ? Unknown
Comments: Yes, jurisdictional verification of UT to Irwin
Creek was received along with a previous permit application
for the roadway realignment at this location.
4b. If the Corps made the jurisdictional determination, what type
? Preliminary ED Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Wildlands Engineering
Name (if known): Matt Jenkins, PWS Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
The permit application for the Double Oaks Road Realignment at this location was received January 25, 2010 (Action Id.
SAW-2009-00048).
5. Project History
5a. Have permits or certifications been requested or obtained for ? Yes ® No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
No permit application has been submitted for the proposed stream restoration by the Charlotte Housing Partnership. A
Nationwide Permit No. 12 (Action Id. SAW-2009-00048) was approved for a roadway realignment at this location for
Woodward Avenue between Statesville Avenue and Double Oaks Road, by Double Oaks, LLC.
Page 3 of 11
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 4 of 11
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
? Wetlands ® Streams - tributaries ? Buffers
? Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary T
W1 ? P ? T ? Yes ? Corps
? No ? DWQ
W2 ? P ? T ? Yes ? Corps
? No ? DWQ
W2 ? P ? T ? Yes ? Corps
? No ? DWQ
W3 ? P ? T ? Yes ? Corps
? No ? DWQ
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - or
(PER)
(Corps - 404, 10
stream
length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ®T Restoration/
Enhancement UT to Irwin Creek ® PER
? INT ® Corps
® DWQ g 1,025
S2 ? P ? T ? PER ? Corps
? INT ? DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
3h. Total stream and tributary impacts 1,025
3i. Comments: All impacts to on-site streams include temporary enhancement and restoration activities.
Page 5 of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individuall list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number - (if applicable) Type of impact Waterbody type Area of impact (acres)
Permanent (P) or
Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose (acres)
number of pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1
P2
5f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ? No if yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
? Neuse ? Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number - Reason Buffer Zone 1 impact Zone 2 impact
Permanent (P) or for Stream name mitigation (square feet
(square feet)
Temporary T impact required?
B1 ?P?T ?Yes
? No
B2 ?P?T ?Yes
? No
B3 ?P?T ?Yes
? No
6h. Total buffer impacts
6i. Comments:
Page 6 of 11
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The project constitutes a positive impact, enhancing and restoring stream function and habitat by improving bed features
in the streams and establishing flood storage. Biodegradable coir fiber matting and native vegetation will be used to
stabilize the newly graded banks throughout the project corridor.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Construction practices will follow guidelines from the NC Erosion and Sediment Control Planning and Design Manual.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State? ? Yes ® No
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps

2c. If yes, which mitigation option will be used for this
project? ? Mitigation bank

? Payment to in-lieu fee program
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) Type Quantity
3c. Comments:
4. Complete if Making a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ? Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d. Buffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 7 of 11
PCN Form - Version 1.3 December 10, 2008 Version
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation? ? Yes ® No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.

Zone 6c.
Reason for impact 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 8 of 11
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
? Yes ? No
Comments:
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 0%
2b. Does this project require a Stormwater Management Plan? ? Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: This project involves the restoration and
enhancement of on-site jurisdictional stream channels, no increase in impervious cover will result from the construction of
this project.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
? Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project?
? Phase fl
3b. Which of the following locally-implemented stormwater management programs ? NSW
? USMP
apply (check all that apply): ? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No
attached?
4. DWQ Stormwater Program Review
? Coastal counties

4a. Which of the following state-implemented stormwater management programs apply ? HQW
? ORW
(check all that apply): ? Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ? No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No
Page 9 of 11
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal/state/local) funds or the ? Yes ® No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ? Yes ? No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.) ? Yes ? No
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
This is a stream restoration project and will not cause an increase in development nor will it negatively impact
downstream water quality.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
Page 10 of 11
PCN Form - Version 1.3 December 10, 2008 Version
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes
No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
i ® Yes ? No
mpacts?
5c. If yes, indicate the USFWS Field Office you have contacted. F-1 Raleigh
® Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
Utilized the NC Natural Heritage Program's element occurrence GIS data layer as well as contact the USFWS Asheville
office for any additional information on the presence of endangered or protected species or critical habitat. Inquiries to
these agencies were submitted with the previously approved Nationwide No. 12 road realignment permit (Action Id. SAW-
2009-00048) at this location. Agency correspondence letters have been enclosed.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
USFWS
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
t
t
N
i
? Yes ®No
s
a
us (e.g.,
at
onal Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The NC State Historic Preservation Office (SHPO) was contacted regarding the presence historic properties or cultural
resources within the project area. Because of the previous road realignment project's proximity to the Double Oaks
Elementary School and Ford Motor Company, a copy of the proposed construction plans were sent to SHPO on October
13, 2009 for further review (see enclosed letter from previously approved permit for this location Action Id. SAW-2009-
00048).
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? FIRM Panel 4555; Map Number 3710455500J
,
effective date March 2, 2009
?aft,It;tL 6

Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant
is rovided.
Page 11 of 11
Wildlands Engineering Page 1
Double Oaks Stream Improvement Project
Wildlands Engineering Page 2
Double Oaks Stream Improvement Project

r ?
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North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue Dee Freeman
Governor Secretary
September 28, 2009
Mr. Matt L. Jenkins
Wildlands Engineering, Inc.
1430 South Mint Street, Suite 104
Charlotte, NC 28203
Subject: Double Oaks Road Realignment Project; Charlotte, Mecklenburg County
Dear Mr. Jenkins:
The Natural Heritage Program has no record of rare species, significant natural communities, significant
natural heritage areas, or conservation/managed areas at the site nor within a mile of the project area.
Although our maps do not show records of such natural heritage elements in the project area, it does not
necessarily mean that they are not present. It may simply mean that the area has not been surveyed. The
use of Natural Heritage Program data should not be substituted for actual field surveys, particularly if the
project area contains suitable habitat for rare species, significant natural communities, or priority natural
areas.
You may wish to check the Natural Heritage Program database website at www.nenhp.org for a listing of
rare plants and animals and significant natural communities in the county and on the quad map. Our
Program also has a new website that allows users to obtain information on element occurrences and
significant natural heritage areas within two miles of a given location:
<http://nhpweb.cnr.state,nc.us/nhis/public/gmap75_niain.phtml>. The user name is "public" mid the
password is "heritage". You may want to click "Help" for more information.
NC OneMap now provides digital Natural Heritage data online for free. This service provides site
specific information on GIS layers with Natural Heritage Program rare species occurrences and
Significant Natural Heritage Areas. The NC OneMap website provides Element Occurrence (EO) ID
numbers (instead of species name), and the data user is then encouraged to contact the Natural Heritage
Program for detailed information. This service allows the user to quickly and efficiently get site specific
NHP data without visiting the NHP workroom or waiting for the Information Request to be answered by
NHP staff. For more information about data formats and access, visit <www.nconcmap.co n>. then click
on "FTP Data Download", and then "nheo.zip" [to the right of "Natural Heritage Element Occurrences"]
You may also c-mail NC OneMap at <dataq(ii ncmail.net= for more inrormation.
Please do not hesitate to contact me at 919-715-8697 if you have questions or need further information.
Sincerely,
Harry E. LeGrand, Jr., Zoologist
Natural Heritage Program
1601 Mail Service Center, Raleigh, Noah Carolina 2769q- I 6'1
Ooe
Phone 919-7?3-4984 1 FAX [phone] ?niernet vdwr P^, state rc us Noali /C/?)jrol ltia
,I.oj al0ppc•Iun;ty',A.Kirmatrve cr?rr,picae 501Recyc,vi, t, ros ;onssr^4,napg• ??,?atLIL? Lly

1
Na STA7p a
Vuw
North Carolina Department of Cultural Resources
State Historic Preservation Office
Peter B. Sandbeck, Administrator
Beverly Eaves Perdue, Governor Office of Archives and t isto-y
Linda A. Carlisle, Secretan? Division of I listorical Resources
Jeffrey 1. Crow, Deputy Secretary David Brook, Dircc[tu
November 2, 2009
Matt Jenkins
Wildlands Engineering, Inc.
1430 South Mint Street
Suite 104
Charlotte, NC 28203
Re: Double Oaks Road Realignment Project, Charlotte, Mecklenburg County, FR 0' -23$4
Dear Mr. Jenkins:
'Thank you for your letter of October 13, 2009, providing plans for the proposed realignment. It appears that
the road work will not adversely affect the historic school.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
gdvisoiy Council on Historic Preservation's Regulations for Compliance -xith Section 1016 codified at 36 CFR
Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the above comment,
please contact Renee Gledhill-Earley, environmental review coordinator, at 919-807-6579. In all future
communication concerning this project, please cite the above-referenced tracking number.
cc: Charlotte-'T'MecIdenburg Historic Landmarks Commission
Sincerely,
Peter Sandbeck
Y.
1
i`
Location. 109 E;tiq,t a Szm-t, Raleigh N : 27601 Mailing Address, 461', NIA Sc ,ce 0nrc., Ra igh M 2-6'1 9-461-, Telephoac jl=aa

Z
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Asheville Field Office
160 Zillicoa Street
Asheville, North Carolina 28801
January 27, 2010
Mr. Matt Jenkins
Wildlands Engineering, Inc.
1430 South Mint Street, Suite 104
Charlotte, NC 28203
Dear Mr. Jenkins:
Subject: Species Assessment for the Double Oaks Road Realignment Project, in
Charlotte, Mecklenburg County, North Carolina
On September 25, 2009, we provided comments to your September 23, 2009 scoping
letter regarding the subject project site. In that letter we recommended that survey be
conducted for the federally endangered Schweinitz's sunflower (Helianthus schweinitzii).
On January 7, 2010, we received correspondence from you that included a response to
our comments, results from the Schweinitz's sunflower survey, and a copy of the Pre-
Construction Notification form. We have reviewed the information you presented and
are providing the following comments in accordance with the provisions of the Fish and
Wildlife Coordination Act, as amended (16 U.S.C. 661-667e), and section 7 of the
Endangered Species Act of 1973, as amended (16 U.S.C. 1531-1543) (Act).
Federally Listed Species - After reviewing the information that you provided, we
concur with your conclusion that no listed species occur on the site. We do not believe
any endangered or threatened species will be affected by the proposed project; therefore,
the requirements under section 7 of the Act are fulfilled. However, obligations under
section 7 of the Act must be reconsidered if: (1) new information reveals impacts of this
identified action that may affect listed species or critical habitat in a manner not
previously considered, (2) this action is subsequently modified in a manner that was not
considered in this review, or (3) a new species is listed or critical habitat is determined
that may be affected by the identified action.
We appreciate the opportunity to provide these comments. If we can be of assistance or
if you have any questions, please do not hesitate to contact Mr. Bryan Tompkins of our
staff at 828/258-3939, Ext. 240. In any future correspondence concerning this project,
please reference our Log Number 4-2-09-431.

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