20030869 Ver 1_COMPLETE FILE_20070831

NNWN A ? . March 21, 2004Michael F. Easley, Governor
O
O 4G
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
`
0 Cam' Alan W. Klimek, P. E. Director
j Division of Water Quality
p -? Coleen H. Sullins, Deputy Director
Division of Water Quality
April 4, 2004
Mr. Glenn Harrell
Town of Cary
Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
Dear Mr. Harrell:
RE: Davis Drive widening
Wake County
DWQ # 03-0869
Thank you for your letter of March 29, 2004 (received March 30, 2004) concerning
additional information for the above-mentioned project. This information is sufficient to satisfy
Condition 3 of the 401 Water Quality Certification issued to the Town of Cary on March 2, 2004
for sites 3, 5, and 6 for this project.
I can be reached at 919-733-9646 if you have any questions.
Sincerely yours,
rn
CC: Raleigh Field Office US Army
Central files
File copy
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [phone]
Engineers (with'enclosure)
b
Wbffv
Customer Service
1-877-623-6748

DATE: March 29, 2004
TO: John Dorney, DWQ
FROM: Glen Harrell, TOC
ENGINEERING DEPARTMENT
,-Ad,iES CS<;oUp
MAR 3 0 2004
J ea ?exNl? 4
SUBJECT: DWQ No. 03-0869 - Additional Culvert Information required per Conditional
Approval dated March 2, 2004 - Sites 3, 5, & 6.
You issued approval for the Davis Drive Widening Project conditioned upon our
providing details adequate to indicate that the current stability of the streams will be
maintained or enhanced for the four culvert installations included in the project. We
provided the additional information for Site 2, which was approved by you on March 21.
This additional information is being provided for Sites 3, 5, and 6 and is in the same
format as that provided for Site 2. Again, a copy of the Culvert Survey and Hydraulic
design report for each of the applicable culverts is provided in the Appendix for reference
if required.
Site 3. The Site 3 upstream and downstream areas are shown in Figure 1. Figure 2 is
a photograph of the downstream channel. Figure 3 details (A) the longitudinal profile of
the stream, cross sections of the (B) downstream channel and (C) upstream channel,
and (D) cross section of the proposed culvert. The proposed 8'x 9' box culvert will be
installed with the invert 1 foot below the channel bed. Various water surface elevations
shown are based on headwater calculations included in the appendix.
The existing 96" W x 65" H CMP arch is undersized to prevent the 50 and 100 yr storm
events from overtopping the roadway. For the 1.5 year runoff, the proposed culvert will
function very similarly to the existing culvert in that the widths of both culverts are the
same at the 1.5 yr water surface elevation.
The profile of the stream through the proposed culvert shows the estimated water
surface elevation and velocity at various locations during the 1.5-yr storm event. The
transitioning hydraulic conditions through this area after this culvert installation will not
decrease the stability of the stream from the current conditions.
The proposed culvert installation will also enhance the potential for aquatic life
movement. Figure 4 shows the discharge end of the existing culvert, which was
installed around 1995 by NCDOT. The invert of the proposed culvert will be buried one
foot below the stream bed.
Site 5. The Site 5 upstream and downstream areas are shown in Figure 5. Figure 6
shows the downstream side of the existing bridge and the downstream channel. Figure
TOWN of CARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
te1919-469-4030 • fax [phone] • www.townofcary.org
7 details (A) the longitudinal profile of the stream, cross sections of the (B) downstream
channel and (C) upstream channel, and (D) cross section of the proposed culvert. The
proposed triple 8' x 8' box culvert will be installed with the invert 1 foot below the channel
bed. Various water surface elevations shown are based on headwater calculations
included in the appendix.
Replacement of the existing bridge was scheduled by NCDOT (TIP B-3526) and was
added to this roadway project. A Categorical Exclusion document was prepared for the
bridge replacement and approved by the FHWA.
The profile of the stream through the proposed culvert shows the estimated water
surface elevation and velocity at various locations during the 1.5-yr storm event. The
transitioning hydraulic conditions through this area after this culvert installation will not
decrease the stability of the stream from the current conditions. The total width of the
three culverts approximates the bankfull width of the downstream channel and the
culvert exiting velocities are lower than those in the downstream channel.
The proposed culvert installation will not diminish the potential for aquatic life movement.
The invert of the proposed culvert will be buried one foot below the stream bed.
Site 6. The Site 6 upstream and downstream areas are shown in Figure 8. Figure 9
shows the downstream channel. Figure 10 details (A) the longitudinal profile of the
stream, cross sections of the (B) downstream channel and (C) upstream channel, and
(D) cross section of the proposed culvert. The existing double 104" (w) x 64" (h) will be
extended upstream and downstream due to the road widening. Various water surface
elevations shown are based on headwater calculations included in the appendix.
The profile of the stream through the proposed culvert shows the estimated water
surface elevation and velocity at various locations during the 1.5-yr storm event. The
total width of the two culverts approximates the bankfull width of the downstream
channel and the culvert exiting velocities are lower than those in the downstream
channel. The transitioning hydraulic conditions through this area after this culvert
installation will not decrease the stability of the stream from the current conditions and
should mimic the current conditions. Those current conditions are not degrading to the
stream as evidenced in Figure 9.
As in the hydraulic conditions, the proposed culvert installation will not diminish the
potential for aquatic life movement, but mimic the current potential.

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March 21, 2004Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality

March 21, 2004
Mr. Glenn Harrell
Town of Cary
Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
Dear Mr. Harrell:
RE: Davis Drive widening
Wake County
DWQ # 03-0869

Thank you for your letter of March 15, 2004 (received March 18, 2004) concerning
additional information for the above-mentioned project. This information is sufficient to satisfy
Condition 3 of the 401 Water Quality Certification issued to the Town of Cary on March 2, 2004.
Please submit the information for sites 3, 5 and 6 at one time in order for DWQ to review and
approve these plans most efficiently.
I can be reached of 919-733-9646 if you have any questions.
Sincerely yours,
CC: Raleigh Field Office US Army
Central files
File copy
rDor ey
of Engineers (with en losure)
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [phone]
AMPA
Customer Service
1-877-623-6748
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APPENDIX
Project Description SITE 3 Upstream
Worksheet Trapezoidal
Channel-1
Flow Element Trapezoidal
Channel
Method Manning's Formula
Solve For Channel Depth
Input Data
Mannings 0.030
Coefficient
Slope 0.026 ft/ft
000
Left Side Slope 1.50 H : V
Right Side Slope 1.50 H : V
Bottom Width 3.00 ft
Discharge 120.0 cfs
0
Results
Depth 2.12 It
Flow Area 13.1 ft2
Wetted 10.64 It
Perimeter
Top Width 9.36 ft
Critical Depth 2.49 ft
Critical Slope 0.013416 ft /ft
Velocity 9.17 fUs
Velocity Head 1.31 ft
Specific 3.43 ft
Energy
Froude 1.37
Number
Flow Type Supercriti
cal
Project Description SITE 3
Downstream
Worksheet Trapezoidal
Channel -1
Flow Element Trapezoidal
Channel
Method Manning's
Formula
Solve For Channel Depth
Input Data
Mannings 0.030
Coefficient
Slope 0.009 ft/ft
000
Left Side Slope 1.50 H
V
Right Side Slope 1.50 H
V
Bottom Width 7.00 It
Discharge 120.0 cfs
0
Results
Depth 2.02 It
Flow Area 20.2 ftz
Wetted 14.28 ft
Perimeter
Top Width 13.05 It
Project Engineer: Tec Ser

APPENDIX
Results
Critical Depth 1.82 It
Critical Slope 0.013057 Wit
Velocity 5.93 fUs
Velocity Head 0.55 ft
Specific 2.56 ft
Energy
Froude 0.84
Number
Flow Type Subcritical
Solve For: Headwater Elevation
Culvert Summary SITE 3 CULVERT
Allowable HW Elevation 7.00 ft Headwater Depth/Height 0.42
Computed Headwater Elevation 332.95 It Discharge 120.00 cfs
Inlet Control HW Elev. 332.56 It Tailwater Elevation 330.00 It
Outlet Control HW Elev. 332.95 ft Control Type Entrance
Control
Grades
Upstream Invert 329.60 ft Downstream Invert 328.00 It
Length 140.00 ft Constructed Slope 0.011429 ft/ft
Hydraulic Profile'
Profile Comp
ositeS Depth, Downstream 2.00 It
S
Slope Type Steep Normal Depth 1.26 ft
Flow Regime N/A Critical Depth 1.91 ft
Velocity Downstream 7.50 ftfs Critical Slope 0.003341 Wit
Section
Section Shape Box Mannings Coefficient 0.013
Section Material Concrete Span 8.00 ft
Section Size 8 x 8 ft Rise 8.00 It
Number Sections 1
Outlet Control Properties
Outlet Control HW Elev. 332.95 ft Upstream Velocity Head 0.96 It
Ke 0.50 Entrance Loss 0.48 It
Inlet Control Properties
Inlet Control HW Elev. 332.56 It Flow Control Unsubmerge
d
Inlet Type 18 to 33.7° Area Full 64.0 ft2
wingwall
flare,
d=0.0830
K 0.48600 HDS 5 Chart 9
M 0.66700 HDS 5 Scale 2
C 0.02490 Equation Form 2
Y 0.83000
Project Engineer: Tec Sen

APPENDIX
Solve For: Headwater Elevation
Culvert Summary SITE 3 Check Existing
CULVERT
Allowable HW Elevation 340.00 ft Headwater Depth/Height 2.82
Computed Headwater Elevation 345.40 It Discharge 600.00 cfs
Inlet Control HW Elev. 341.84 ft Tailwater Elevation 333.54 It
Outlet Control HW Elev. 345.40 It Control Type Outlet
Control
Grades
Upstream Invert 329.64 ft Downstream Invert 328.97 ft
Length 100.00 ft Constructed Slope 0.006700 ft/ft
Hydraulic Profile
Profile CompositeM Depth, Downstream 5.17 ft
2PressurePr
ofile
Slope Type Mild Normal Depth N/A ft
Flow Regime Subcritical Critical Depth 5.17 ft
Velocity Downstream 17.65 ft/s Critical Slope 0.047369 ft/ft
Section Shape Arch Mannings Coefficient 0.028
Section Material Steel and Span 7.92 ft
Aluminum 18
In or less CR
3x1
Corrugations
Historic
Section Size 95 x 67 inch Rise 5.58 It
Number Sections 1
Outlet Control Properties
Outlet Control HW Elev. 345.40 It Upstream Velocity Head 4.57 ft
Ke 0.20 Entrance Loss 0.91 ft
Inlet Control Properties
Inlet Control HW Elev. 341.84 It Flow Control Submerged
Inlet Type 18 inch CR Area Full 35.0 W
structural
plate, 33.7°
bevels
K 0.00300 HDS 5 Chart 35
M 2.00000 HDS 5 Scale 3
C 0.02690 Equation Form 1
Y 0.77000
Solve For: Headwater Elevation
Culvert Summary
Allowable HW Elevation 340.00 It Headwater Depth/Height 2.50
Computed Headwater Elevation 343.58 It Discharge 550.00 cfs
Inlet Control HW Elev. 340.57 ft Tailwater Elevation 333.54 ft
Outlet Control HW Elev. 343.58 It Control Type Outlet
Control
Project Engineer: Tee Sen
` APPENDIX
Grades
Upstream Invert 329.64 ft Downstream Invert 328.97 ft
Length 100.00 ft Constructed Slope 0.006700 ft/ft
Hydraulic Profile
Profile CompositeM Depth, Downstream 5.04 ft
2PressurePr
ofile
Slope Type Mild Normal Depth N/A ft
Flow Regime Subcritical Critical Depth 5.04 ft
Velocity Downstream 16.41 ft/s Critical Slope 0.040080 ft/ft
Section Shape Arch Mannings Coefficient 0.028
Section Material Steel and Span 7.92 ft
Aluminum 18
In or less CR
3x1
Corrugations
Historic
Section Size 95 x 67 inch Rise 5.58 ft
Number Sections 1
Control Properties
Outlet Control HW Elev. 343.58 ft Upstream Velocity Head 3.84 ft
Ke 0.20 Entrance Loss 0.77 ft
Inlet Control Properties
Inlet Control HW Elev. 340.57 ft Flow Control Submerged
Inlet Type 18 inch CR Area Full 35.0 ftz
structural
plate, 33.7°
bevels
K 0.00300 HDS 5 Chart 35
M 2.00000 HDS 5 Scale 3
C 0.02690 Equation Form 1
Y 0.77000
Project Engineer: Tee Ser

f
APPENDIX
Project Description Site 5
Downstream
Worksheet Trapezoidal
Channel - 1
Flow Element Trapezoidal
Channel
Method Manning's
Formula
Solve For Channel Depth
Input Data
Mannings 0.030
Coefficient
Slope 0.003 ft/ft
000
Left Side Slope 1.50 H
V
Right Side Slope 1.50 H
V
Bottom Width 7.00 it
Discharge 164.0 cis
0
Results
Depth 3.19 it
Flow Area 37.7 ft2
Wetted 18.52 ft
Perimeter
Top Width 16.58 it
Critical Depth 2.19 it
Critical Slope 0.01254 ft/ft
9
Velocity 4.35 ftts
Velocity Head 0.29 it
Specific 3.49 it
Energy
Froude 0.51
Number
Flow Type Subcritic
al
Project Description Site 5 Upstream
Worksheet Trapezoidal
Channel-1
Flow Element Trapezoidal
Channel
Method Manning's
Formula
Solve For Channel Depth
Input Data
Mannings 0.030
Coefficient
Slope 0.005 Wit
000
Left Side Slope 1.50 H
V
Right Side Slope 1.50 H
V
Bottom Width 12.00 it
Discharge 164.0 cis
Results
Depth 2.18 it
Flow Area 33.2 ft2
Wetted 19.85 it
Perimeter
Top Width 18.53 it
Project Engineer: Teo Sen
APPENDIX
Results
Critical Depth 1.67 ft
Critical Slope 0.01258 Wit
9
Velocity 4.94 ft/s
Velocity Head 0.38 ft
Specific 2.55 It
Energy
Froude 0.65
Number
Flow Type Subcritic
al
Solve For: Headwater Elevation
Culvert Summary SITE 5 Culvert
Allowable HW Elevation 309.00 It Headwater Depth/Height 0.45
Computed Headwater Elevation 304.59 ft Discharge 164.00 cfs
Inlet Control HW Elev. 304.50 It Tailwater Elevation 304.50 It
Outlet Control HW Elev. 304.59 ft Control Type Outlet
Control

Grades
Upstream Invert
Length 301.00 It
132.00 It Downstream Invert
Constructed Slope 300.50 It
0.003788 Wit

Hydraulic Profile
Profile
Slope Type
Flow Regime
Velocity Downstream S1
Steep
Subcritical
1.71 ftfs Depth, Downstream
Normal Depth
Critical Depth
Critical Slope 4.00 It
1.08 ft
1.13 It
0.003294 ft /ft

Section
Section Shape
Section Material
Section Size
Number Sections Box
Concrete
8 x 8 ft
3 Mannings Coefficient
Span
Rise 0.013
8.00 ft
8.00 It

Outlet Control Properties
Outlet Control HW Elev.
Ke 304.59 It
0.50 Upstream Velocity Head
Entrance Loss 0.06 ft
0.03 It
Inlet Control Properties
Inlet Control HW Elev. 304.50 ft Flow Control Unsubmerge
d
Inlet Type 45° wingwall Area Full 192.0 ft2
flare,
d=0.0430
K 0.51000 HDS 5 Chart 9
M 0.66700 HDS 5 Scale 1
C 0.03090 Equation Form 2
Y 0.80000
Project Engineer: Tee Sen
4

•
APPENDIX
Project Description Site 6
Downstream
and Upstream
Worksheet Trapezoidal
Channel - 1
Flow Element Trapezoidal
Channel
Method Manning's
Formula
Solve For Channel Depth
Input Data
Mannings 0.045
Coefficient
Slope 0.006 ft/ft
000
Left Side Slope 1.00 H
V
Right Side Slope 1.00 H
V
Bottom Width 6.00 ft
Discharge 22.00 cfs
Results
Depth 1.24 ft
Flow Area 8.9 ft2
Wetted 9.50 it
Perimeter
Top Width 8.47 ft
Critical Depth 0.72 ft
Critical Slope 0.03778 ft/ft
0
Velocity 2.46 ft /s
Velocity Head 0.09 ft
Specific 1.33 it
Energy
Froude 0.42
Number
Flow Type Subcritic
al
Solve For: Headwater Elevation
Culvert Summary Site 6 Culvert
Allowable HW Elevation 308.00 ft Headwater Depth/Height 0.15
Computed Headwater Elevation 305.66 ft Discharge 22.00 cis
Inlet Control HW Elev. 305.57 it Tailwater Elevation 305.20 It
Outlet Control HW Elev. 305.66 ft Control Type Outlet
Control
Grades
Upstream Invert 304.76 It Downstream Invert 304.00 ft
Length 130.00 ft Constructed Slope 0.005846 ft/ft
Hydraulic Profile
Profile M1 Depth, Downstream 1.20 ft
Slope Type Mild Normal Depth 0.77 It
Flow Regime Subcritical Critical Depth 0.61 It
Velocity Downstream 1.46 ftfs Critical Slope 0.015652 ft/ft
Section
Section Shape Arch Mannings Coefficient 0.028
Project Engineer: Tec Ser
p
Section
APPENDIX
Section Material Steel and Span 8.58 ft
Aluminum 18
In or less CR
3x1
Corrugations
Historic
Section Size 103 x 71 Rise 5.92 ft
inch
Number Sections 2
Outlet Control
Outlet Control HW Elev. 305.66 ft Upstream Velocity Head 0.11 ft
Ke 0.20 Entrance Loss 0.02 ft
Control Properties
Inlet Control HW Elev. 305.57 ft Flow Control Unsubmerge
d
Inlet Type 18 inch CR Area Full 80.2 ft2
structural
plate, 33.7°
bevels
K 0.00300 HDS 5 Chart 35
M 2.00000 HDS 5 Scale 3
C 0.02690 Equation Form 1
Y 0.77000
APPENDIX
Project Engineer: Tec Sen
7
CQ
WAT9
QG
Cam"
March 21, 2004Michael R Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
March 21, 2004
Mr. Glenn Harrell
Town of Cary
Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
Dear Mr. Harrell:
RE: Davis Drive widening
Wake County
DWQ # 03-0869
Thank you for your letter of March 15, 2004 (received March 18, 2004) concerning
additional information for the above-mentioned project. This information is sufficient to satisfy
Condition 3 of the 401 Water Quality Certification issued to the Town of Cary on March 2, 2004.
Please submit the information for sites 3, 5 and 6 at one time in order for DWQ to review and
approve these plans most efficiently.
I can be reached at 919-733-9646 if you have any questions.
ly yours,
CC: Raleigh Field Office US Army
Central files
File copy
n Qor of E
ngineers (with en losure)
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [phone] Customer Service
1-877-623-6748

ENGINEERING DEPARTMENT
WETLANDS 1401 GROUP
P
DATE: March 15, 2004 MAR 1 8 2004
TO: John Dorney, DWQ
FROM: Glen Harrell, TOC
SUBJECT: DWQ No. 03-0869 - Additional Culvert Information required per Conditional
Approval dated March 2, 2004 - Site 2.
One of the conditions listed in your approval of the Davis Drive Widening Project is that
we provide details adequate to indicate that the current stability of the streams will be
maintained or enhanced for the four culvert installations included in the project. You
indicate that the details should include existing stream dimensions (including the cross
section dimensions, pattern, and longitudinal profile) above and below each culvert.
The four culvert locations are designated Site 2, Site 3, Site 5, and Site 6 in previous
submittals. This additional information is being provided for Site 2 with this submittal to
ensure that this format is acceptable. The additional information will be submitted for
Sites 3, 5, and 6 subsequent to your review of Site 2. A copy of the Culvert Survey and
Hydraulic design report for each of the applicable culverts is provided in the Appendix for
each submittal.
Site 2. The Site 2 upstream and downstream areas are shown in Figure 1. Figure 2 is
a photograph of the downstream channel. Figure 3 details (A) the longitudinal profile of
the stream, cross sections of the (B) upstream channel and (C) downstream channel,
and (D) cross section of the proposed culvert. Both 103"W x 71 "H arch pipes will be
installed with the invert 1 foot below the channel bed. Various water surface elevations
shown are based on headwater calculations on double 95" x 67" arch pipes to mimic the
hydraulics of the 103x71 pipes with one foot of earth inside.
The existing 36" culvert is greatly undersized and the roadway has frequently
overtopped in the past. The upstream channel frequently overtops its banks and floods
the area west of Davis Drive and south of the entrance to the subdivision. This channel
overtopping will not change with this project, however, the increased culvert size will
prevent the roadway from overtopping and the swales parallel to Davis Drive will channel
the runoff back to the culvert inlet.
The profile of the stream through the proposed culvert shows the estimated water
surface elevation and velocity at various locations during the 1.5-yr storm event. The
transitioning hydraulic conditions through this area after this culvert installation will
greatly increase the stability of the stream from the current conditions due to the more
uniform stream bed and to the more uniform velocities through the transition area.
TOWN Of CARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
te1919-469-4030 9 fax [phone] www.townofcary.org
??
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Figure 2 - Site 2 Downstream Channel
(looking downstream)

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Project Description SITE 2
Worksheet Trapezoidal
Channel - 1
Flow Element Trapezoidal
Channel
Method Manning's
Formula
Solve For Channel Depth
Input Data
Worksheet
Mannings 0.035
Coefficient
Slope 0.013000 ft/ft
Left Side Slope 1.00 H : V
Right Side Slope 1.00 H : V
Bottom Width 5.00 Ft
Discharge 200.00 Cfs
Results SITE 2
Depth 3.26 Ft
Flow Area 27.0 ft2
Wetted 14.23 Ft
Perimeter
Top Width 11.53 Ft
Critical Depth 2.99 Ft
Critical Slope 0.018067 ft/ft
Velocity 7.41 ft/s
Velocity Head 0.85 Ft
Specific 4.12 Ft
Energy
Froude 0.85
Number
Flow Type Subcritical
Solve For: Headwater Elevation
Culvert Summary SITE 2
Allowable HW Elevation 5.00 ft Headwater Depth/Height 0.55
Computed Headwater Elevation 346.86 ft Discharge 200.00 cfs
Inlet Control HW Elev. 346.66 ft Tailwater Elevation 344.00 ft
Outlet Control HW Elev. 346.86 ft Control Type Entrance
Control

Grades SITE 2
Upstream Invert 343.80 ft Downstream Invert 341.65 ft
Length 122.00 ft Constructed Slope 0.017623 ft /ft
Hydraulic Profile SITE 2
Profile ComposilteS
IS2 Depth, Downstream 2.35 ft
Slope Type Steep Normal Depth 1.86 ft
Flow Regime N/A Critical Depth 2.03 ft
Velocity Downstream 6.25 ft /s Critical Slope 0.013083 ft /ft
Section SITE 2
Section Shape Arch Mannings Coefficient 0.028
Section Material Steel and
Aluminum 18 Span 7.92 ft
In or less CR
Project Engineer. Tec Sen
r ? P r. F
Worksheet
Section SITE 2
3x1
Corrugations
Historic
Section Size 95 x 67 inch Rise 5.58 It
Number Sections 2

Outlet Control Properties SITE 2
Outlet Control HW Elev. 346.86 ft Upstream Velocity Head 0.85 ft
Ke 0.20 Entrance Loss 0.17 ft

Inlet Control Properties SITE 2
Inlet Control HW Elev. 346.66 It Flow Control Unsubmerged
18 inch CR
Inlet Type structural plate, Area Full 69.9 ft2
33.7° bevels
K 0.00300 HDS 5 Chart 35
M 2.00000 HDS 5 Scale 3
C 0.02690 Equation Form 1
Y 0.77000
Project Engineer: Tec Sen
r
??F WATF9p Michael F. Easley, Governor
William G. Ross Jr., Secretary
?0 G North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
March 2, 2004
Wake County
DWQ Project #: 03-0869
APPROVAL of 401 Water Quality Certification with ADDITIONAL CONDITIONS,
Ecosystem Enhancement Program and Neuse River Buffer Rules .
Town of Cary Engineering Department
C/o Mr. John Glen Harrell
318 North Academy Street
Cary, NC 27511
Dear Mr. Harrell:
You have our approval, in accordance with the attached conditions and those listed below, to impact
0.18 acres of wetlands, 374 linear feet of streams, and 0.86 acre of stream buffers for widening of Davis
Drive (SR 1613) from SR 3014 to Farm Pond Road in Wake County as you described in your
application dated July 11, 2003 as modified on October 13, 2003 December 16, 2003 and February 25,
2004. After reviewing your application, we have decided this fill is covered by General Water Quality
Certification Number 3404. This certification allows you to use Nationwide Permit Number 14 when
the Corps of Engineers issues it. This approval is also valid for the Neuse River buffer rules. (15.A
NCAC 2B .033) In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal
Stormwater, Non-Discharge and Water Supply Watershed regulations. This approval will,expire C.
when the accompanying 404 or CAMA permit expires unless otherwise specified in the General,.
Certification.
This approval is only valid for the purpose and design that you described in your application except as
modified below. If you change your project, you must notify us and you may be required to send us a
new application. If the property is sold, the new owner must be given a copy of this Certification and
approval letter and is thereby responsible for complying with all conditions. If total wetland fills for
this project (now or in the future) exceed one acre, compensatory mitigation may be required as
described in 15A NCAC 2H.0506 (h) (6) and (7). This approval shall expire when the corresponding
Nationwide Permit expires or as otherwise provided in the General Certification. For this approval to
be valid, you must follow the conditions listed in the attached certification and any additional
conditions listed below. Deed notifications or similar mechanisms shall be placed on all remaining
jurisdictional wetlands and waters to notify the state in order to assure compliance for future wetland
and/or water impact. These mechanisms shall be put in place within 30 days of the date of this letter or
the issuance of the 404 Permit (whichever is later).
Conditions of Certification:
1. An additional condition is the stormwater management plan in the application and its
modifications, shall be.implemented. Also, before the roadway is opened to traffic, the
stormwater management facilities, as approved by this Office, shall be constructed and
operational, and the stormwater management plan, as approved by this Office, shall be
implemented.
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
NORTH CAROLINA-DIVISON OF WATER QUALITY
401 WATER QUALITY CERTIFICATION
SUMMARY OF PERMITTED IMPACTS AND MITIGATION REQUIREMENTS
In accordance with 15A NCAC 2 H.0500, Town of Cary has permission as outline below
for the purpose(s) of proposed Davis Drive (SR 1613) widening. All activities associated
with these authorized impacts must be conducted with the conditions listed in the attached
certification transmittal letter. THIS CERTIFICATION IS NOT VALID WITHOUT THE
ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENT WETLAND RESTORATION
PROGRAM
LOCATION Davis Drive widening from SR 3014 to Farm Pond Road
COUNTY: Wake
BASIN/SUBBASIN 030402
As required by the US Army Corps of Engineers, you are required to compensate for
the impacts to streams through the restoration, creation, enhancement or preservation of
streams as outlined below prior to conducting any activities that impact or degrade the
waters of the state.
Note: Acreage requirements proposed to be mitigated through the wetland Restoration
Programs must.be rounded to one-quarter acre increments according to 15 2R .0503(b)
acres of Class WL wetlands
acres of riparian wetland
acres of non-riparian wetlands
acres of Class SWL wetlands
406 linear feet of streams as required by the US Army Corps of Engineers
(other)
One of the options you have available to satisfy the compensatory mitigation
requirements is through the payment of a fee to the Ecosystem Enhancement Program per
NCAC 2R .0503. If you choose this option, please sign this form and mail it to the
Ecosystem Enhancement Program at the address listed below. An invoice for the
appropriate amount of payment will be sent to you upon receipt of this form. PLEASE
NOTE, THE ABOVE IMPACTS ARE NOT AUTHORIZED UNTIL YOU RECEIVED
NOTIFICATION THAT YOUR PAYMENT HAS BEEN PROCESSED BY THE
ECOSYSTEM ENHANCEMENT PROGRAM.
Signature
Date
ECOSYSTEM ENHANCEMENT PROGRAM
DIVISON OF WATER QUALITY
1619 Mail Service Center
RALEIGH, N.C. 27669-1619
[phone]

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
Wetlands/401 Unit
Street Address:
Mailing Address:
Contact Information:
Fax To:
Company:
Number of pages including cover
Notes or special instructions:
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
1650 Mail Service Center
Raleigh, NC 27699-1650
Phone #: [phone]
Fax #: [phone]
Fax #: -7 q S
Date: d

1•
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 276042260 (Location)
[phone] (phone), 919-733-6893 (fax), (httpJ/h2o.enr.state.nc.us/ncwetlands
ENGINEERING DEPARTMENT
WETLANDS 1401 GROUP
Mr. John Dorney, DWQ
1617 Mail Services Center
Raleigh, NC 27699-1617
February 27, 2004
FEB 2 7 2004
WATER QUALITY SECTION
Subject: Davis Drive (SR1613) Widening DWQ # 03-0869
Dear Mr. Dorney:
I am attaching a copy of your latest review comments dated February 19, 2004
along with our submittal to address those remaining comments.
We appreciate the consideration given to our previous understanding as
expressed in your letter. We understand that this action does not set a precedent for
future projects submitted to DWQ.
If there are any remaining comments after reviewing this submittal, please call
me at 460-4933 to discuss. Again, we appreciate all of your help in this matter.
ince ely,
John G r II, P , PLS
Cc: Tim Bailey (via email) ^4?n
Tom Horstman (via email)
Matt Flynn (via email)
File ST1047
TOWN Of GARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
tel [phone] • fax [phone]• www.townofcary.org
?dlCd .l by Aleo.y Al.pvin.
ENGINEERING DEPARTMENT
WET,ANDS 1401 CROUP
DATE: February 25, 2004 FEB 2 1 2004
TO: John Dorney, DWQ c?
WATER (?URI?t?1' ?ECTi`Cw
FROM: Glen Harrell, TOC
SUBJECT: DWQ No. 030869 - February 19, 2004 Comments
I have provided a response to your comments dated February 19, 2004. We feel that
this response addresses the remaining concerns expressed in your letter.
1- Site 2 - stream bankfull width, depth, and cross section are still needed.
The following response was provided with the Dec 16 submittal:
Proposed stream cross section is shown on the permit drawings, which is
similar to the existing stream cross section.
am also attaching a copy of sheets 3, 4, and 13 which were previously
submitted. In addition to that information, I am attaching sheet 13A which
shows a profile along the proposed culvert, and a photograph of Site 2
upstream of the culvert. The existing channel at the point where the
excavation will start is 3' wide (top and bottom) and 1.5' deep (at this time
the flow is approximately 0.3' deep).
John Hennessy's comments dated Jan 5 also asked for the drainage area to the
site. 0.29 sq.mi. or 186 Ac.
2- Site 4 - stream bankfull width, depth, and cross section are still needed.
The following comment was included in John Hennessy's comments dated Jan 5.
cite 4
In your response dated Deeertther 16.2003 you clarified the direclio€t drainate. Thanks for the clWif"icadon.
However, now that we urAlomand the direction of drainage is away from the wrdand and not to it, we have
gwst oas about the dal of the drainage structure draining the wgdand. M we pmm ide a cross sectior€ that
shuts. the invert elevation of the dtai€tage structure relative to natural ground;
I have attached Sheet 7 of the Dec 16 submittal with the existing drainage pipes
from the golf course added. The pocket wetland was created by a past golf
course drainage project discharging at an elevation lower than the existing
culvert under Davis Drive. I have also attached Sheet 7A showing the project
cross sections with the drainage profile added (See stations 158+50 and
159+00).
TOWN of CARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
tel [phone] • fax [phone] • www.townofcary.org
3- Site 5 - Topographic information still needed.
John Hennessy's comments dated Jan 5 are as follows:
• In discussing tho out fall structure located on the northeast corner of the site, you indicate that the topography of
the site is such that water does not drain toward the sttearn. As such, you indicate that a flow spreader will not
work. It has been our experictow that water typically drains toward a stream. However, if this site is somehow
tuna at l in. that regardl we request a topographic trap (survey) of the sib-, to assess the situation. Another
alternative could be to have Ow requoted rr ting in the fwd drat v could a,css the situation and assist
with the developinent of € esign solutions.
I have attached Sheet 17 of the Dec 16 submittal along with sheet 17A that
shows the existing contour lines. I have also attached an aerial photograph of
the area with contours that shows the northeast corner of Site 5 is basically a
"delta" between two unnamed tributaries of Crabtree Creek. This topographic
information shows the difficulty of designing a level spreader to function properly
in this area.
4- Site 6 - Topographic information still needed.
John Hennessy's comments dated Jan 5 are as follows:
• In discussing the outran structure locsatetiors the south "t corner of Mesita. you inidicato that the toposraphy of
the site is such that water does not drain toward the sham. As such, you indicate that a flow spreader will not
work. It has been out experience that water typic"y drains toward :a strew. However. if this site is souse tow
unusual in that regd, we request a topogra&c map (survey) of the site to assess the situation. Another
alternative could be to have the mquested nweting in the field so that we could assess the situation and assist
with die developinont of design solutions.
I have attached Sheet 18 of the Dec 16 submittal along with sheet 18A that
shows the existing contour lines. The aerial photograph discussed in item 3
above also shows the southwest corner of Site 6 is similar to Site 5 regarding the
difficulty of designing a level spreader to function properly.
N ?
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CLASS B RIP RAP =
WITH FILTER FABRI
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SURFAirE-V7ATERS
a ,

----- TBJB ?-RE AIN
W/ MHC
90+00 91+00 REMOVE 92+00
REMOVE EXIST. 36_' GONC PIPE REMOVE XIST. E.O.P.
REPLACE WITH DOUBLE
1031 x 71' METAL PIPE ARCHES CB ¦?i
15' RCP - 1-- CB i

?.
` TODD D. & i-
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SARA S. CLIFTON
-- -------- ------------- -- --- FILL IN _
0 O
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WITH FILTER FABRIC
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50 25 0 50 100 PERMIT DRAWING
PLAIN VIEW
TOWN OF CARY
WAKE COUNTY

rd, 0' GROU
FED r P WETLAND
2004
PROJECT: T.O.C. 99 - 040
?ECTI? DAVIS DRIVE WIDENING
a SHEET --3 - OF DATE 13L&1=0
1 360
89+00
EXISTING ROADWAY=
350
90+00
SAG & OVERTOPPING LOCATION
STA 91+07.73 -L-
? EL = 352.67
GUTTER EL = 351.97
PROPOSED ROADWAY
91+00
100 YR 50 YR
35119 WSEL - 350.81
_ -------?z ----------s -- - - - --- -
PVI 89+70.00
EL. 351.75
335' V.C.
` 1.0' SILL
-- --_EST. DDE:
55 CU. YDS.
II'
?IIE, 2'
8' - 20'CHANNEL INLET DETAIL
INV. IN = 342.80
INV. OUT = 340.65
REPLACE SINGLE 3G' RCP
................ ....
WITH DOUBLE 103' w x 71' h
STEEL PIPE ARCH CULVERTS
LOOKING UPSTREAM
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5 0 2 5 0 1 0 0 PERMIT DRAWING
PROFILE VIEW
HORIZONTAL
?E A? TOWN OF CARY
51401 GiRoU WAKE COUNTY
10 5 0 10 20 FEB 2 7 2004 SITE 2
VERTICAL WATER PROJECT: T.®.C.99 - 040
DAVIS DRIVE WIDENING
SKEET i- ®F_ 119 DATE-Li

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r Alan W. Klimek, P.E., Director
Division of Water Quality
t Coleen H. Sullins, Deputy Director
Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
Wetlands/401 Unit
Street Address: 2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center
Raleigh, NC 27699-1650
Contact Information: Phone #: [phone]
In _,., , Fax #: [phone]
Fax To:
Company:
Number of pages including cover
Notes or special instructions:
e I' Fax #:?
Date:
Z
f,

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax),.(http://h2o.enr.state.nc.us/ncwetlands
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
February 19, 2004
Mr Glen Harrell
Town of Cary
Engineering Department
318 North Academy St.
Cary, NC 27513
Dear Mr. Harrell;
RE: Davis Drive (SR 1613) widening
DWQ # 03-0869
Wake County
DWQ staff have reviewed your response dated January 9, 2004 (received January 13,
2004) regarding issues raised in DWQ's on-hold letter dated January5, 2004 (and reiterated in
our letter of January 29, 2004). With respect to the fundamental issue that you raised with
respect to stormwater treatment, DWQ will only require treatment of the net increase in
impervious surfaces for this project. However the following issues still need to be addressed for
this project from our January 5 letter. Once these issues are addressed, DWQ will be able to
issue the required approvals for this project. Until that time, this project shall remain on hold as
incomplete.
1. Site 2 -stream bankfull width, depth and cross-section are still needed.
2. Site 4 - stream bankfull width, depth and cross-section are still needed.
3. Site 5 - topographic information still needed.
4. Site 6 - topographic information still needed.
Finally, we understand that you were relying on the advice of DWQ staff with respect to
the need to treat only the new impervious surface from the road. Please be aware that DWQ's
agreement to only require treatment for the new impervious surface for this Davis Drive project
does not set precedent for future DWQ permitting actions with similar circumstances. DWQ staff
plan to review the generic issue with respect to treating stormwater from roads with respect to
the Neuse and Tar-Pamlico River Riparian Protection Rules but believe that withholding action
on this project would not be warranted given your previous understanding with DWQ staff.
Please call me at 919-733-9646 if you have any questions.
Cc: Ray Lovinggood, TransSystems
27606
Tim Bailey, Town of Cary
File copy
Central files
orney
917 Waters Edg Drive, Suite 235, Raleigh, NC
John Hennessy, DWQ
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [phone]
?E=
Customer Service
1-877-623-6748
DATE: January 9, 2004
ENGINEERING DEPARTMENT
WIRILANDS / 401 GROUP
TO: John Hennessy, John Dorney, WQ
JAN 13 2004
FROM: Glen Harrell, TOC vaf? WATER QUALITY Ci°60N
SUBJECT: DWQ No. 030869 - January 05, 2004 Comments
I have provided a response to your comments. I agree that a meeting would be very
beneficial to resolve some lingering issues.
?i+3n2f:;i?. ?_i!t1ttT"ttnts
011t pi1};e I o p ":U], 01-rober 44, 2 3 ye_T"se, and y?: jmr Decc:tnbcr €+ 2!:03 ,s€tbrrriit€ s inditare that, "_.,not all
pmts cif d : haT c c.in br.fillCd • lLh k 1!h41', but uhcre p.1 si }It, t it;curF r ?Re l rAP's...". As c4c:
CV40LJs,Y rPAt:x?€Cd, f,tllurc a trro,4d : storniv,'Uff trratmtnt.;cu:r ti. t ,ti"s€11 rY'c Ncw-c Rv.?el Riparian t mff
I4oln- 15A NC AC 213 .02333 preclude cis t1 nrr r :alii r y ,;;E rtyue.Ftt? ?yprovitls. Y 4,,ur:;"bmi€laL prorc s: s
surnminlp all Ih-- nitrot,.on -i-d3lcrs incuirce- arms Ilse enlirL pf"jrrr, L=ira usrrl that (o Allow di:.Uil:rrgrs to
arc. ) that do ni,l in ?rl1o ate. stc)rrvLv,*cr t3MP"' . 'I lie, f "Ur c K;vor kip,iriari fiuitcr RLLIC';t 00 nut p rrnit this
type2 of Jtsrzs-lrlt' Wit, ?Vhfl1,, .tie r nd(,r5tx-id the dirt:C1111v 317tlwlilllcs Illco'ptir.ijlflt storniwatcf lfurttlle.l?t 11110 a
rot.l widenillp P11_set t, we are ;:c•t ,:blt to approve the-SC: tiru,6CCts tutlefS t41cy pf-o vidc appropyiatc sionnWater
ics t:;n. 1'leasa ra4ise our sL r1u:tLLter desikl us drz:.riF nil L?lis`4 Lu adlicie to €lie Ncusc Ri+cr Ripari_m Rubs.
It y )u rcyuirc i5s.isl n?a i d .tl >piri, dtesirpris to mutt the r_,?uirc:me:n±s, tivt are tvillinp. to mccl tit disi uss
den€g n (Tpri )ns avarl.lbltt m VOIL We F- it.-W sr,;IPV t rojei S tbT0U_hf)111 ILK! s9a1e, an(' such, hati•c(1cvch)c'd
[hit 7113 ' No i1f a isista3ic c. ikf?c.r T'?'?1?.?•119g th? inYS',Fgif?iG?iii£ ZSChj'3i'? ',S'k: rC?Otu r71?7ilA'1 ?$.
YnBCi1nL to dl,.'wu s 6hu s4c*nwato- &Sign [.mill. proprc,,pls.?-isc- wnt,£i.t obfiB6 nncssh , A 919-733-5694,
rr1'r?kelrll ?+4????3,?;C*=4i.
This appears to be the fundamental issue with most of your remaining comments. It
certainly has been the direction provided in previous meetings with Todd St. John that
the project would only be required to treat the net increase in impervious surface. We
respectfully request that you reconsider this issue. If we are now required to treat 100%
of the impervious surface of the entire finished project, including all existing impervious
surfaces, we will need to undertake a substantial re-design.
Another point that we feel is relevant here is that the Town of Cary requires
developments to treat the runoff from any impervious areas added since 1997, including
adjoining roadways, with their on-site BMPs. There are two major developments that
have recently received PUD approval within this corridor and other large tracts that will
likely be developing very soon that will be providing onsite treatment stormwater runoff
from Davis Drive.
Our response to the following comments is dependent upon your willingness to
reconsider this issue. Please advise how we should proceed.
TOWN of CARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
te1919-469-4030 • fax [phone] • www.townofcary.org
rte. 'W
4 Oii pag,% 3 M'4 4 rlf 4-o' w dated December K 29113. @%iJ ind-Icat4 tli.lt the hairdo st-ucture located at
5taron ft € r 53 t Lm nc>t E?2..lesici d to adhere to the si r?9a ttrer Bhfl' design c€ iteria. AS such, €ae de igtt would
taut u >nibrln with ? to requir4:me2?is iti the Neuse liver Rilm,ian Buffer Rriles {15A tiC.AC 213
csnn::t issuC aulhorit.turm4 for pmjecl designs that Liz no! rYdhLFC €0 tht' ntltti. At this pivot, you havo two
r, dti t1s ,': ui.a:?1c wi rc?i- lve the sittratii7n. One, } cm can rufc.ign the. collecti n gystr i and (,-aafah JQ'AlO W
rring 0,w -csip i.:t +.rT1('it3ni'z>, Or fwi: , you cin €oqucSt a varit¢n,,x fr):rn the rijk:S tram 1f c NC. Enviro7]Yi]enrai
i41 ta,d?tmt.t€[ Coniui['sion, t)!uur icy eritrit ng a V quc_?te l f tri; lice rite EMC -vould first retauirc
r.xj}?hnlLicn of alteta?.ta? Spina v, ttel dey:kn oj)nui,s, ' e9efott, wtf re4uUe%t a nittetin F to dkcus:s these Optiolus,
Sir.! II
•?On F4 3 ut -S oi`w rr t:..; f,rsn c thatcd C_iecc rnber 16, 200. you iadic.irc that the! oa lct. strut, WrS lug ;Cod 5t
ni,)r1 t3f," t{7, , nn G tr. t: igrrt;ri t,, .t.ltiel`c ctnrm,valer lMP do i{ n c:rittrifk, Asstwh,thede-de-Agrii vooul€i
no; CQflfi'?rm v itlt the requirs,•;mtnt: in the Nv wt e Rjt•cr R:pari;m huffit r Fnlcs (1 ?,A AX+.:.AC 2B T_3), We
Ca[,110L issue t ti1Cr1Z?31tt3?tCC ptar?fct 1i:StEn5 t11:tt lu not atlhCratCi tht rules. t'w e.I?RbaSta arrc?titt? lCkr3t';tu.tis
ihi., irisuc.
Site 6
M On page (if } of, ()Ln rC[piir s? it.ttc l 11C:;c nFrCr 1t7,y;?u intl :ttc that Lllc ,-t,tlct S1rUCture IoCCtt^d it
statirm 09+111o i infu)t L,e dcsFgn ,,i `(? c,dtttrt'. ti.. tk4e Sts; 7r m vcr 111 ,f l1 .sifm chtc.rui, As such, the design would
not e.Nnform wilt the requtrtniont; in th rcv.; R vcr Kij7anan BU11fCT Rul. S (1' rA NVAU, 2B -10'231j. We
vannetissue ;tuitr??ti2-1Lat?tu'1, 1 giro}ec§ derrpn? th.tt do ntit adbere. in tLie ralei. tiV?: recjnem?t a meoJgg tc) diScuss
thlti5 iM1s"e.
will be working on providing the information that you requested in the following comments, and
will have that information by the first of next week if we can schedule a meeting that quickly.
Site2
In €i-Lr ?mcsih nd tr a dated Cho verrt6? r'(2001 we rrtiue ctiitit uni.ttiitrMtin tht-stream b-ATI f LIL Width,
Lth lt?d.-r z4 . Gti< n Your rc r:)nsa dirt ntit Fr idc her ,uisir m('tirmtt ?,n,. Your resr rnsc- rctoenced
(tie li. !p. scd sIreartt v jdull. dc.p h, argil d:rnenslon ; Io irvcr, t f:.flc-d to -ro ide. rbc requestcd httnkfull
sPec.1ic:iti0n5 ML:AsC pruVidc th, request i19f'ormatiGn. Also, please provide thedrainage, wea io the site:.
>l a
s in ynsrrs(tiimcdltEalt4lcr:'a r16,70J3 rnilailft.dth- dueeCictt€it4lna,TEttlksf3N'the tl<ri€t utwtr>
1`14•.5 Cti fC, nfn 5i ttl nt `xc 11 filcra.n!)?J the direr 1L.)n of ur aanag t} dvea-y fnon1 the'?6•COAR4 atad kL A by it, wC have
q-UeStu.)[b at+cut the: l:O(entiid cat the drattiage sttet?t_Lire tsrwnang ttio v,,11 and Please. provide a cross-section that
,La ,?,N the iriw r1 !11- ' rtiUn Of the drail tge StrUCtUt't t'elatiVc. tat uatatirl •rt nutttf,
I will also be working on resolving these final two comments, but if we can schedule the meeting
in the field, we would welcome your assistance.
€.it 5
e In disc to mriv the cititfall struttu e Ioc ed On tare t r=taelst ourner of the si.to,'ma indtcat'', that[ the u,p;tftt'aFjhy of the sue is sett rr thw at & --es not €1r:rin to n-d the slrcnut t As -,Lich, }xru in 3s-rtt? thi t n flrii sPresdcr will not wean,. It hrti Leiur[ uitr cvpt'ticrict that uam ty, icatf4 drain, 1atva1C1 r stream. it 111i5 sit4 4:" 50ttliehOW
ttaau ual in that regard, .vc rt.luc t u tup(7grap+hit i a i:; erwcvl of 014! silt tcr.us? s the t!uatit+n. nr5ttter
altcrnttiv cr'uld h tat ImNe tttc requested mating in tht• 1°ielci U141 *-? ea'ruld n-.sess tht mtuutt+all 411d Assist
with the de:•elupttacnt t-)f design sc[utton ,
In di n q€,' the ulfalE gar lour 4wa6c i on 1h sa?uthive+L rutnc ,ai [ft six, }uu irdiGa(c tfi31 thG c'?aT3 t1C
tin: tu_ that vt at t cftics nQt t4 ain ttswa,ttd the stye-m. A,s t Qn ind[o_ x that 'a ffncr sere:*r will rant.
wo,k. k ho-,, beer, our e?x ielwt that ua+,ei' ty l?ic:itt4' draw S tc)tt.trd a strcam, Ht 4vcc•e.r, it thi; site is sttiriel:ic
.unusual its that regard, we requ t a t:zpogratijc M p (survey) +,?f the sitc, to assess the situation. An-,. ftr
aliernu.ive could hC to iluve the ro?uest:dl meeting in tktz 11t;id st, baii we could asses the situ 6c)n W niSt
with the dc,?Lcktp cnr Of deign St)Iuti yns.

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PERMIT. DRAWINGS,
TOWN OF CARY
WAKE COUNTY
DAVIS DRIVE WIDENING
SITE MAP
,?a;n `l PROJECT: T.O.C. 99 - 040
R
SHEET OF DATE
a
0
0
?n
0
i
O
N
NCO
o,
TOWN OF CARY
WAKE COUNTY
SITE I
WETLAND
PROJECT: T.O.C. 99 - 0410
DAVIS DRIVE WIDENING
SHEET OF DATE
5 0 215 0 510 10 0 PERMIT i)RA WING
PLAN VIEW
Michael F. Easley, Governor
Of ?AT?iQ William G. Ross Jr., Secretary
?? `OCR QG North Carolina Department of Environment and Natural Resources
C7 ?. Alan W. Klimek, P.E. Director
j Division of Water Quality
Coleen H. Sullins, Deputy Director
ww Division of Water Quality
January 29, 2004
Glen Harrell, P.E., Engineering Services
Town of Cary Engineering Department
318 North Academy Street
Cary, NC 27511
Re: Permit Application for the proposed widening of Davis Drive in Wake County
DWQ No. 030869
Dear Mr. Harrell:
The Division of Water Quality has reviewed both your original, your revised submittal dated October 14, 2003, and
your submittal dated December 16, 2003, and your latest submittal dated January 9, 2004 for a 401 Water Quality
Certification for the aforementioned project. Review of your application revealed it lacking necessary information
required for making an informed permit decision. The permit application was deficient in the following areas:
General Comments
• Your submittal failed to address many of the comments we presented in our January 5, 2004 correspondence.
However, we have agreed to meet on site in February 2004 to resolve the remaining issuing associated with this
project. While we anticipate resolution to the various issues at that time, we must place the project on hold until
we receive the necessary information to make a final permitting decision.
Therefore, pursuant to 15A NCAC 2H.0507(a)(5), we will have to place the permit application on hold until we are
supplied the necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request.(by copy of this letter) that the US Army Corps of Engineers place the permit application on
hold.
Hopefully, we can work together to expedite the processing of your permit application. If you have any questions or
require additional information, please contact John Hennessy at 919-733-5694.
Sincerely,
Alan W. Klimek, P.E.
Director
cc: DWQ Wilmington Regional Office
US Army Corps of Engineers Wilmington Field Office
File Copy
Ray Lovinggood, TransSystems Corp.
C:\ncdot\Davis Drive\correspondence\030869hid4.doc
LIE
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
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TOWN OF CARY
WARE COUNTY
SITE 2
WETLAND
PROJECT: T.O.C.99 - 040
DAVIS DRIVE WIDENING
SKEET OF DATE
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EXISTING ROADWA'
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GUTTER EL = 351.97
PVI 89+70.00
EL. 351.75
335' V.C.
PROPOSED ROADWAY
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WSEL = 351.19 y WSEL = 350.81
----- ---------- ----___--_ _
INV. IN = 342.80
INV. OUT = 340.65
`1.0' SILL
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---WITH-DOUBLE-10'.w- x - 71'h STEEL PIPE ARCH CULVERTS
PERMIT DRAWING
PROFILE VIEW
TOWN OF CARY
WADE COUNTY
SITE 2
PROJECT: T.O.C. 99 - 040
DAVIS DRIVE WIDENING
SHEET OF DATE

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50 25 50 100 PERMIT DRAWING
PROFILE VIEW
HORIZONTAL _
TOWN OF CARY
10 5 0 10 20 WADE COUNTY
SITE 3
VERTICAL PROJECT: T.®.C.99 - 040
DAVIS DRIVE WIDENING
SHEET OF DATE
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rMON.- '1'
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
January 5, 2004
Glen Harrell, P.E., Engineering Services
Town of Cary Engineering Department
318 North Academy Street
Cary, NC 27511
Re: Permit Application for the proposed widening of Davis Drive in Wake County
DWQ No. 030869
Dear Mr. Moore:
The Division of Water Quality has reviewed both your original, your revised submittal dated October 14, 2003, and
your latest submittal dated December 16, 2003 for a 401 Water Quality Certification for the aforementioned project.
Review of your application revealed it lacking necessary information required for making an informed permit
decision. The permit application was deficient in the following areas;
General Comments
One page 1 of your October 14, 2003 response, and your December 16, 2003 submittals indicate that, "...not all
points of discharge can be fitted with a BMP, but where possible, we incorporated BMP's...... As we
previously indicated, failure to provide stormwater treatment consistent with the Neuse River Riparian Buffer
Rules (15A NCAC 2B .0233) precludes us from issuing your requested approvals. Your submittal proposes
summing all the nitrogen reduces incurred across the entire project, and using that to allow discharges to
streams that do not incorporate stormwater BMPs. The Neuse River Riparian Buffer Rules do not permit this
type of assessment. While we understand the difficulty sometimes of incorporating stormwater treatment into a
road widening project, we are not able to approve these projects unless they provide appropriate stormwater
design. Please revise your stormwater design as described below to adhere to the Neuse River Riparian Rules.
If you require assistance in developing designs to meet the requirements, we are willing to meet to discuss
design options available to you. We review many projects throughout the state, and as such, have developed
many design techniques that may be of assistance. After reviewing the information below, we recommend a
meeting to discuss the stormwater design for this project, please contact John Hennessy at 919-733-5694, or
myself at 919-733-9646.
Site 2
• On page 3 of 4 of your response dated December 16, 2003, you indicate that the outlet structure located at
Station 91+53 cannot be designed to adhere to the stormwater BMP design criteria. As such, the design would
not conform with the requirements in the Neuse River Riparian Buffer Rules (15A NCAC 2B .0233). We
cannot issue authorizations for project designs that do not adhere to the rules. At this point, you have two
options available to resolve the situation. One, you can redesign the collection system and outfall location to
bring the design in compliance. Or two, you can request a variance from the rules from the NC Environmental
Management Commission. However, prior to granting a requested variance the EMC would.first require
exploration of alternative stormwater design options. Therefore, we request a meeting to discuss these options.

N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
4

W ATF9
QG
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
• In our correspondence dated November 20, 2003, we requested information on the stream bankfull width,
depth, and cross-section. Your response did not provide the requested information. Your response referenced
the proposed stream width, depth, and dimension. However, it failed to provide the requested bankfull
specifications. Please provide the requested information. Also, please provide the drainage area to the site.
Site 3
• On page 3 of 4 of your response dated December 16, 2003, you indicate that the outlet structure located at
Station 130+00 cannot be designed to adhere to the stormwater BW design criteria. As such, the design would
not conform with the requirements in the Neuse River Riparian Buffer Rules (15A NCAC 2B .0233). We
cannot issue authorizations for project designs that do not adhere to the rules. We request a meeting to discuss
this issue.
Site 4
• In your response dated December 16, 2003 you clarified the direction drainage. Thanks for the clarification.
However, now that we understand the direction of drainage is away from the wetland and not to it, we have
questions about the potential of the drainage structure draining the wetland. Please provide a cross-section that
shows the invert elevation of the drainage structure relative to natural ground.
Site 5
• In discussing the outfall structure located on the northeast corner of the site, you indicate that the topography of
the site is such that water does not drain toward the stream. As such, you indicate that a flow spreader will not
work. It has been our experience that water typically drains toward a stream. However, if this site is somehow
unusual in that regard, we request a topographic map (survey) of the site to assess the situation. Another
alternative could be to have the requested meeting in the field so that we could assess the situation and assist
with the development of design solutions.
Site 6
• In discussing the outfall structure located on the southwest corner of the site, you indicate that the topography of
the site is such that water does not drain toward the stream. As such, you indicate that a flow spreader will not
work. It has been our experience that water typically drains toward a stream. However, if this site is somehow
unusual in that regard, we request a topographic map (survey) of the site to assess the situation. Another
alternative could be to have the requested meeting in the field so that we could assess the situation and assist
with the development of design solutions.
• On page 4 of 4 of your response dated December 16, 2003, you indicate that the outlet structure located at
Station 209+00 cannot be designed to adhere to the stormwater BUT design criteria. As such, the design would
not conform with the requirements in the Neuse River Riparian Buffer Rules (15A NCAC 2B .0233). We
cannot issue authorizations for project designs that do not adhere to the rules. We request a meeting to discuss
this issue.
Therefore, pursuant to 15A NCAC 2H.0507(a)(5), we will have to place the permit application on hold until we are
supplied the necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers place the permit application on
hold.
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
0? W A TAR
?O? QG
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Hopefully, we can work together to expedite the processing of your permit application. If you have any questions or
require additional information, please contact John Hennessy at 919-733-5694.
cc:
DWQ Wilmington Regional Office
US Army Corps of Engineers Wilmington Field Office
File Copy
Ray Lovinggood, TransSystems Corp.
C:\ncdot\Davis Drive\correspondence\030869hld4.doc
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
Sincerely,
TZ 4 1 VSVsTEA4S
CGY2P0/?AT/O/V /,fly
4917 Waters Edge Drive, Suite 235
Raleigh, North Carolina 27606
[phone] Fax: [phone]
MEMORANDUM
TO: John Dorney
John Hennessy
FROM: Brian Wiles, P.E.
SUBJECT: Comments from DWQ
Town of Cary Project 99-040
DWQ No. 030869
Wake County
DATE: 16 DEC 03
GENERAL:
WETLANDS/ 401 GROUP
DEC 1 7 2003
WATER QUALITY SECTION
At a meeting in March of 2003 with Todd St. John, Glen Harrell and Tom
Horstman with the Town of Cary and Ray Lovinggood and myself, this project
was discussed on how we could meet the Neuse River buffer requirements. At
this meeting both level spreaders and grass swales were discussed as possible
water quality treatment options. At this meeting Todd St. John stated that either
_ -grass swales or level spreaders could be used to treat the stormwater discharge.-___
Todd also stated that the project would be required to treat the net amount of
new impervious area in the Neuse River basin. The project could not treat the
stormwater discharge at all outlet locations, because of the topography or nearby
structures.
The amount of impervious areas, amount of treatment required and proposed for
the project is listed in the following table:
Impervious Area
Existing Pavement 16.65 Acres
Proposed Pavement 31.46 Acres
Net additional pavement 14.81 Acres
Amount of treatment
provided 17.29 Acres
The project treats more impervious area in the Neuse River Basin than the
amount which the project increases the impervious area.
Page 1 of 4
Widen Davis Drive
Response to 20 NOV 03 DWQ letter
Location of proposed water quality treatment on project:
Location Total Drainage Length of Length of Nitrogen
Area Grass Swale Level Reduction
Spreader
Sta 85+50 to 4.77 Ac 480' 30.9 Ibs
90+00 Lt
Sta 116+65 to 0.75 Ac 80' 4.9 Ibs
117+50 Lt
Sta 129+00 Rt 1.97 Ac 200' 12.8 Ibs
Sta 135+50 to 2.52 Ac 260' 16.3 Ibs
138+00 Lt
Sta 186+92 to 1.47 Ac 212' 9.5 Ibs
187+25 Rt
Sta 191+20 to 0.95 Ac 116' 6.2 Ibs
192+22 Rt
Sta 196+60 to 0.58 Ac 60' 3.8 Ibs
197+39 Lt
Sta 200+60 to 0.90 Ac 108' 5.8 Ibs
202+00 Lt
Sta 203+00 Rt 0.67 Ac 50' 4.3 Ibs
Sta 204+40 Rt 0.49 Ac 60' 3.2 Ibs
Sta 205+00 Lt 0.63 Ac 70' 4.1 lbs
Sta 208+50 Lt 1.10 Ac 110' 7.1 Ibs
(Treatment
Len th
Sta 208+35 Rt 0.49 Ac 40' 3.2 Ibs
Total 17.29 Ac 1756' 90' 112.1 Ibs
Our responses to your comments as stated in the letter dated 20 NOV 03 are as
follows:
1. SITE 1: Stormwater discharge into an existing wetland.
The permit drawing has been revised with data for the outfall. The 10
year velocity has been calculated to be 1.4 ft/sec. Outlet protection is
provided by the NCDOT standard, number 876.02, "Guide for Rip Rap at
Pipe Outlet."
2. SITE 2: Multiple discharges using grassed swales through the buffer.
The topography prevented the use of structural level spreaders, the
ground slope in the area of the level spreader would is in the range of 10
Page 2 of 4
Widen Davis Drive
Response to 20 NOV 03 DWQ letter
to 15%. Also, the length of the level spreader would need to be 260;
The level spreader would follow the stream alignment, the stream gains
three to four feet in elevation upstream from where the level spreader
would began. The permit drawing for this site provides flow data for the
swales.
The outlet at Sta 91+53 Lt. is loo close to the buffer for either a grass
swale or level spreader. This location does not allow any treatment
because of topography and existing structures, but the project overall
treats the required amount of discharge. The storm drain outlet, which
extends an existing storm drain system. The outlet is at an elevation
below the ground elevation at the buffer limits, dictating the need to place
a grass lined ditch through the buffer.
Question concerning sill height.
Proposed stream cross section is shown on the permit drawings, which
is similar to the existing stream cross section.
3. SITE 3: Multiple discharges using grassed swales through the buffer.
Grass swale is provided in southeast corner, the ground slopes toward
the buffer at a rate near 10% in a forested area dictating the use of a
grass swales. The grass swale is 200' long, the riprap or impervious
section of the channel is in addition to grass swale section of the channel
and is used to direct the flow through the buffer without erosion.
Treatment was not provided right of station 130+00, due to the
steepness of the topography and the proximity of nearby structures. A
riprap channel was provided to minimize the erosion from the system
outlet to the stream. The overall project treats the required amount of
impervious area.
4. SITE 4: Stormwater discharge into existing wetland.
The water flows from the existing wetland area into the drainage system.
5. SITE 5: Multiple discharges using grassed swales through the buffer.
• Southwest corner the existing ground is generally around 15%,
which is too steep for a level spreader to be used.
Page 3 of 4
Widen Davis Drive
Response to 20 NOV 03 DWQ letter
• Northwest corner grass swale was used to keep the roadway
drainage separate from the offsite flow. The terrain did not allow the
roadway drainage system to cross over or under the bypass swale.
• Southeast corner grass swale replaced with a level spreader of 50'
in length.
• Northeast corner existing ground generally flows away from the
stream, so a grass swale was incorporated to direct the flow to the
stream after it was treated in the swale.
Question concerning sill height.
Proposed stream cross section is shown on the permit drawings.
6. SITE 6: Multiple discharges using grassed swales through the buffer.
• Southwest corner the existing ground slopes away from the stream
bank, because of stream flooding and siltation and some probable
stream bed cleanout in the past. A grass swale was used to direct
the flow to the stream after the needed length of grass swale for
treatment.
• Southeast corner grass swale replaced with a level spreader of 40'
in length.
• Northeast corner the Q10 and drainage area are too large for any
standard BMP's to be constructed. The majority of the impervious
area flowing out of this storm drain system was previously flowing
in grass lined ditches. Also, portions of this drainage area are
being developed,-which wil a cftliis system.
Please contact us if you have further questions.
Page 4 of 4
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TOWN OF CARP
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PROJECT: T.O.C. 99 - 040
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PROJECT: T.O.C. 99 ° 040
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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
Novemb? 20, 2003
Joseph Moore II, P.E., Engineering Services Manager
Town of Cary Engineering Department
318 North Academy Street
Cary, NC 27511
Re: Permit Application for the proposed widening of Davis Drive in Wake County
DWQ No. 030869
Dear Mr. Moore:
The Division of Water Quality has reviewed both your original and your revised submittal for a 401 Water Quality
Certification for the aforementioned project. Review of your application revealed it lacking necessary information
required for making an informed permit decision. The permit application was deficient in the following areas:
General Comments
One page 1 of your October 14, 2003 response, you indicate that, "...not all points of discharge can be fitted
with a BMP, but where possible, we incorporated BMP's...... While we understand the difficulty sometimes of
incorporating stormwater treatment into road widening project, we are not able to approve these projects unless
they provide appropriate stormwater design. Please revise your stormwater design as described below to adhere
to the Neuse River Riparian Rules. If you require assistance in developing designs to meet the requirements, we
are willing to meet to discuss design options available to you. We review many projects throughout the state,
and as such, have developed many design techniques that may be of assistance. After reviewing the
information below, if you desire a meeting to discuss the stormwater design for this project, please contact John
Hennessy at 919-733-5694, or myself at 919-733-9646.
Site 1
• At present, the information to approve this site appears to be present. However, since no design for the site was
submitted with your revised application, it is not clear if the design submitted in your original application is
what is still being proposed, or if a new design is being proposed. Please provide a revised drawing or further
clarification.
Site 2
• Your correspondence states, "The topography prevented the use of structural level spreaders and we opted to
use grassed swales". What was the topographic constraint that required use of a grassed swale? We agree that
discharges out of flow spreaders on slopes greater than 6 percent do not generally provide diffuse flow at non-
erosive velocities. However, your submittal does specify the percent slope at the proposed discharge location.
Please provide that information for each discharge outfall located at Site 2.
• Your correspondence states, "The outlet structure located at Station 91+53 is too close to the buffer to allow a
standard sized grassed swale or level spreader. The proposed design does not adhere to the stormwater
requirements of the Neuse River Riparian Buffer Rules. Please provide a design that uses a flowspreader to
provide diffuse flow at non-erosive velocities, or alternative stormwater design that provides at least a 30
percent reduction in nitrogen prior to discharging to surface waters.
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
f+....a........ Q......:..... 1 or%r% aO2_77A Q
W
4G
?r
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
N
Our previous correspondence requested that you provide the stream bankfull width, depth, and cross-section for
the stream at this location. The requested information was not provided. Please provide the requested
information.
Site 3
• Assuming that a flowspreader is not possible due to topographic constraints (see comments on Site 2), the
proposed grassed swale located at Station Number 130+00 (Southeastern Corner), is 200 feet for an anticipated
drainage area of 1.97 acres. While this is within our design parameters, review of the design typical reveals that
a portion of the 200 feet of swale will have an impervious base. Thus, the actual length of swale treating the
stormwater will be less then the proposed 200 feet. Please change the grassed swale design typical to allow the
section of the swale to function, or develop an alternative design for this site.
Assuming that a flowspreader is not possible due to topographic constraints (see previous comment), the
proposed grassed swale located at Station Number 130+00 (Northeast Comer), does not provide any treatment
of stormwater of discharge of stormwater as diffuse flow at non-erosive velocities.
Site 4
• Our previous correspondence, requested that you provide information to demonstrate that the proposed
stormwater discharge in wetlands would occur at velocities below 2 feet per second for a 10-year storm event.
The requested information was not provided.
Site 5 & 6
• None of the requested information in our previous correspondence was provided for these sites. Please provide
the requested information. As a reference we have included our previous comments for these sites in italics
below:
Site S
• The present design shows multiple discharges of stormwater using grassed swales through the protected
riparian buffer. While this method of treating discharge is allowed under the Neuse River Riparian Buffer
Rules, the use of flowspreader devices to discharge the stormwater outside the protected riparian buffer and to
promote diffuse flow at non-erosive velocities through the protected buffers must first be examined. If an
analysis of the design constraints demonstrates that flow spreaders cannot be used, then the use of a grassed
swale to treat the stormwater and then discharge through the buffer and directly in to the stream may be
allowed Please redesign your project to include the use of flow spreaders, or provide a discussion that dictates
the design constraints that prohibits their use.
• The information presented should indicate the anticipated flow spreader design, exit velocities (to demonstrate
non-erosive velocities), and the hydraulic design information.
• It is unclear if the proposed culvert sill is located at a height that closely proximates stream bankfull depth.
Please provide information that includes the bankfull width, depth, and cross-section for the stream at this
location, and design the culvert sills to closely mimic the stream bankfull cross-section.
Site 6
• The present design shows multiple discharges of stormwater using grassed swales through the protected
riparian buffer. While this method of treating discharge is allowed under the Neuse River Riparian Buffer
Rules, the use of flowspreader devices to discharge the stormwater outside the protected riparian buffer and to
promote diffuse flow at non-erosive velocities through the protected buffers must first be examined. If an
analysis of the design constraints demonstrates that flow spreaders cannot be used, then the use of a grassed
swale to treat the stormwater and then discharge through the buffer and directly in to the stream may be
allowed. Please redesign your project to include the use of flow spreaders, or provide a discussion that dictates
the design constraints that prohibits their use.
• The information presented should indicate the anticipated flow spreader design, exit velocities (to demonstrate
non-erosive velocities), and the hydraulic design information.
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
Am-
? A
00.
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Therefore, pursuant to 15A NCAC 2H .0507(a)(5), we will have to place the permit application on hold until we are
supplied the necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers place the permit application on
hold.
Hopefully, we can work together to expedite the processing of your permit application. If you have any questions or
require additional information, please contact John Hennessy at 919-733-5694.
Sincerely,
cc:
DWQ Wilmington Regional Office
US Army Corps of Engineers Wilmington Field Office
File Copy
Ray Lovinggood, TransSystems Corp.
C:\ncdot\Davis Drive\correspondence\030869hld3.doc
N. C. Division of Water Quality 1650 Mail Service Center
Customer Service: 1 800 623-7748

Raleigh, NC 27699-1650 [phone]
T
CC?2PG7/?AT/ON Am:.
4917 Waters Edge Drive, Suite 235 WETLANDS 1401 GROUP
Raleigh, North Carolina 27606
[phone] Fax: [phone]
NOV 1 7 2003
MEMORANDUM
WATER QUALITY SECTION
TO: John Dorney
FROM: Ray Lovinggood, P.E. &
SUBJECT: Comments from DWQ
Town of Cary Project 99-040
DWQ No. 030869
Wake County
DATE: 14 OCT 03
GENERAL:
This project widens the existing Davis Drive from the existing two-lane roadway
to a four-lane curb and gutter roadway. Treatment for the additional impervious
area draining to the Neuse River Buffers is provided by means of n0s??--
swales. Due to the to o r h and space constraints, of all points of discharge
e fitted with a BMP device but where possible, we incorporated BMP's
grasse swales and the total area they treat exceeds the additional impervious
areas draining to the buffers. ilke,R+rG"-
Our responses to your comments as stated in the 3 SEP 03 letter are as follows:
1. We have corrected Pages 9 and 10 of the Preconstruction Notification
Form to show the impacts to the Neuse River Riparian Buffers. The
corrected pages are attached to this memo. We have also found and
corrected errors on pages 6 and 7.
nJ? 2. SITE 1: Stormwater discharge into an existing wetland.
p?
The permit drawing has been revised with data for the ouf?The . year velocity has been calculated to be 1.4 ft/sec. Outlet protection is
P? provided by the NCDOT standard, number 876.02, "Guide for Rip Rap at
Pipe Outlet."
Page 1 of 2
Widen Davis Drive
Response to 3 SEP 03 DWQ letter
v? k
Question concerning sill height.
The two-year storm easily overtops the banks in this stream system.
The one foot sill is augmented by the inlet channel design which adds an
additional foot of blockage. The sill will maintain the flow through one
barrel for the low flow conditions, but it won't take much of a storm event
to cause the stream to overflow its banks.
3. SITE 2: Multiple discharges using grassed swales through the buffer.
?y ?ad r
The topography prevented the use of structural level spreaders and we
opted for the use of grass swales. The Town of Cary also prefers grass
swales to level spreaders. The permit drawing for this site provides flow
data for the swales.
The outlet at Sta 91+53 Lt. is too close to the buffer to allow a standard C /d5, sized grass swale or level spreader. The designer did provide a swale to 13z r''
the extent possible before the water enters the stream. 473
GIs°? ?sr?
r,,u, ?l ?vvn?c j tW 4
4. SITE 3: Multiple discharges using grassed swales through he buffer.
J -en
Grass swales are provided here feasible nd the data for the swales ?
are shown on the 11 "x 1 " cawing. We designed an innovative{ °
"cascade" swa/e, shown near Sta 136+00 Lt, which provides the
5t°'" required treatment along the toe of slope and does not encroach
4 r drastically into the adjacent property '00/
r' Along with pages 6,7, 9, and 10 of the PCN form, I'm including the following:
?o`9 a. Revised "Buffer Impacts Summary" sheet and "Wetland Permit Impact
Summary" sheet S.-
?J b. 11 x 17 buffer permit drawing sheets for:
6? • Site 2 (two sheets) a?,? ?
• BMP Sta 117+00 LT ?07 ?k
u 1 • Site 3
° • BMP's Sta 188+00 Rt and 192+00 Rt
, • Site 5
. Site 6
8.5 x 11 wetland permit drawing for
ran , rML • Site 1
• Site 2 f6-
?s 4 • Site 6
I will send a copy of this letter to Eric Alsmeyer.
?a? cod Please contact us if you have further questions.- i?tN \
Page 2 of 2

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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. Wetland Impacts
Wetland Impact
Site Number
(indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
yes/no Distance to
Nearest Stream
linear feet
Type of Wetland***
1 Fill 0.0649 N 500 Wet Shrub
1 Mech. Clearing 0.0213 N 500 Wet Shrub
2 Excavation 0.0039 N <50 Forested Wetland
2 Mech. Clearing 0.0187 N <50 Forested Wetland
4 Fill 0.0190 N 200 Wet Shrub
4 Mech. Clearing 0.0098 N 200 Wet Shrub
5 Fill 0.0072 Y <50 Shrub/Emergent (West)
Forested (East)
5 Excavation 0.0062 Y <50 "
5 Mech. Clearing 0.0243 Y <50 "
* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://www.femagov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.)
List the total acreage (estimated) of existing wetlands on the property:
Total area of wetland impact proposed: 0.1753 acre
2. Stream Impacts, including all intermittent and perennial streams
Stream Impact
Site Number
indicate on ma
Type of Impact* Length of
Impact
linear feet
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
leasespecify)
2 Fill 97.0 UT Turkey Creek loft P
3 Fill 21.1 UT Turkey Creek 18 ft I
5 Fill 133.9 UT Crabtree Creek 15 ft P
6 Fill 121.6 UT Crabtree Creek 11 ft P

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, 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 must be included.
Page 6 of 12

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** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.tppozone.com,
www.mapauest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 373.6 feet
3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U.S.
Open Water Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Name of Waterbody
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
4. 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
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, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
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.
Impacts will occur within right-of-wav limits alone existine highwav corridor rather than on new
location. Roadway side slopes at jurisdictional locations are 3:1 or less. Drainage will be
directed through grassy swales before entering ditches and channels where feasible. Culverts
with be countersunk with sills on multi-barrel culverts to control low flow.
Page 7 of 12
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.gaLv rn/index.htm. If
use of the NCWRP is proposed, please check the appropriate box on page three and provide
the following information:
Amount of stream mitigation requested (linear feet): 252.0
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federaUstate/local)
land?
Yes ® No ?
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
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
X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only)
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.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water. Supply Buffer Requirements), or other (please identify Neuse )?
Yes ® No ? If you answered "yes", provide the following information:
Page 9 of 12
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
(square feet Multiplier Required
Mitigation
1 24,634.7 3
2 12,948.4 1.5
Total 37,583.1 N/A
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.
Linear transportation project. Each iurisdictional crossing considered "sinele and complete"
project. Impacts at individual sites less than 150 feet. No mitigation is required (per John
Hennessey, DWQ, personal communication 2/29/00).
XI. Stormwater (DWQ Only)
Describe impervious acreage (both 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.
Roadside drainage will be directed through 2rassv swales before entering ditches and channels
where feasible.
XII. Sewage Disposal (DWQ Only)
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.
XIII. Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application?
Yes ? No
Page 10 of 12
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A7FR
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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
_q Coleen H. Sullins, Deputy Director
Division of Water Quality
rur?
September 3, 2003

Joseph Moore II, P.E., Engineering Services Manager
Town of Cary Engineering Department
318 North Academy Street
Cary, NC 27511
Re: Permit Application for the proposed widening of Davis Drive in Wake County
DWQ No. 030869
Dear Mr. Moore:
The Division of Water Quality has reviewed your submittal for a 401 Water Quality Certification for the
aforementioned project. Review of your application revealed it lacking necessary information required for making
an informed permit decision. The permit application was deficient in the following areas:
General Comments
• On Page 9 of the Preconstruction Notification Form, information is not presented for the proposed impacts to
the Neuse River Riparian Buffers. Please provide the necessary information.
Site 1
• At present, the project design shows a stormwater discharge into an existing wetland. However, the application
does not present any information to demonstrate that the discharge will occur at non-erosive velocities. Please
provide information to demonstrate that the stormwater will discharge at this site at velocities below 2 feet per
second for a 10-year storm event.
Site 2
• The present design shows multiple discharges of stormwater using grassed swales through the protected riparian
buffer. While this method of treating discharge is allowed under the Neuse River Riparian Buffer Rules, the use
of flowspreader devices to discharge the stormwater outside the protected riparian buffer and to promote diffuse
flow at non-erosive velocities through the protected buffers must first be examined. If an analysis of the design
constraints demonstrates that flow spreaders cannot be used, then the use of a grassed swale to treat the
stormwater and then discharge through the buffer and directly in to the stream may be allowed. Please redesign
your project to include the use of flow spreaders, or provide a discussion that dictates the design constraints that
prohibits their use.
• It is unclear if the proposed culvert sill is located at a height that closely proximates stream bankfull depth.
Please provide information that includes the bankfull width, depth, and cross-section for the stream at this
location, and design the culvert sills to closely mimic the stream bankfull cross-section.
Site 3
• The present design shows multiple discharges of stormwater using grassed swales through the protected riparian
buffer. While this method of treating discharge is allowed under the Neuse River Riparian Buffer Rules, the use
of flowspreader devices to discharge the stormwater outside the protected riparian buffer and to promote diffuse
flow at non-erosive velocities through the protected buffers must first be examined. If an analysis of the design
constraints demonstrates that flow spreaders cannot be used, then the use of a grassed swale to treat the
stormwater and then discharge through the buffer and directly in to the stream may be allowed. Please redesign
your project to include the use of flow spreaders, or provide a discussion that dictates the design constraints that
prohibits their use.
N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748

TRRNSYSTEMS
ID:919-233-1841
JUL 17'03 7:40 N0.002 P.01
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
J
Alan W. Klimek, P.E. Director
Hopefully, we can work together to expedite the processing of your permit application. If you have any questions or
require additional information, please contact John Hennessy at 919-733-5694.
Sincerely,
c
cc: DWQ Wilmington Regional Office
US Army Corps of Engineers Wilmington Field Office
File Copy
C:\ncdoADavis Drive\con espondence\030869hld2.doc

N. C. Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699-1650 [phone]
Customer Service: 1 800 623-7748
EcoScience Corporation
Raleigh, North Carolina 919-828-3433
EcoScience
LETTER OF TRANSMITTAL 49 0.
Date: 7/14/03 Job #: 99-033
Attn: Mr. John Hennessey
N.C. Division of Water Oualitv
WE ARE SENDING YOU:
X Document Change Order
Data Plans
Copy of Letter Samples
X Maps Specifications
Prints
No. of
Copies Description
7 404 Nationwide Permit A liciation, 401 Review and Neuse Buffer Review - Davis Drive, Ca
C 46? 211

AVVIANDSIW Anj GGgoor,
JU 4 M n.
THESE ARE TRANSMITTED as checked below:
X For approval Approved as submitted
For your use Approved as noted
As requested Returned for corrections
J'VATERQUALIIYSECTIQN
Resubmit Copies for approval
Submit Copies for distribution
Return Corrected prints
REMARKS:
COPY TO: SENDER SIGNATURE: /,
RECEPIENT SIGNATURE:
T wowmms
COlr2P0/?AT/ON
9?D?sa
July 11, 2003
NET US/ 1 GAROUp
JUL 1 4 2003
Mr. Eric Alsmeyer
U.S. Army Corps of Engineers
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
Re: Davis Drive Widening
Dear Mr. Alsmeyer:
INATER QUALITY SECT(ON
The Town of Cary proposes multi-lane improvements (widening) tca. approximately 3.85
miles of Davis Drive (SR 1613) in Wake County. The portion of the existing facility
proposed for improvements extends approximately 1000 feet north from the junction of
Davis Drive and Morrisville-Carpenter Road (SR 3014) to Farm Pond Road in Wake
County (Sheets 1 and 2 of 24, attached). This portion of Davis Drive currently exists
primarily as a two-lane facility with limited sections containing a third, center turning
lane. Widening of Davis.0rive is proposed to expedite automobile traffic flow into and
out of Research Triangle Park, and the towns of Cary and Apex.
Environmental studies, including jurisdictional delineations of wetlands and strearns,
were conducted along the aligmment in the fall of 1999 by EcoScience Corporation
(ESC). ESC discussed jurisdictional concerns and permitting with Mr. Eric Alsmeyer,
U.S. Army Corps of Engineers, on February 1, 2000, and delineations were confirmed in
the field by Mr. Alsmeyer on February 11, 2000. Six jurisdictional areas will be
impacted by roadway improvements (Sheets 5 and 6 of 24). A total of 0.1634 wetland
acre and 294.3 linear feet of stream channel will be affected by roadway expansion.
Impacts at individual jurisdictional crossings have been minimized (site specific impacts
are less than 133.9 feet of stream channel encroachment [Site 5] and. 0.0649 acre of
wetland infringement [Site 1]; see Sheet 6 of 24 for summary of impacts), allowing for
each site to be considered a single and complete project for permit purposes. Because of
the type of project (linear highway corridor improvements) and the limited nature of the
impacts (less than 0.50 acre impact on waters of the U.S.), use of Nationwide Permit
(NWP) #14 (Linear Transportation Projects) is proposed under Section 404 of the Clean
Water Act. Subsequent approval for 401 Water Quality Certification is also being sought
from the N.C. Division of Water Quality (DWQ) under General Permit #3375.
Every effort has been made to avoid or minimize jurisdictional impacts when feasible.
Construction will be focused within existing right-of-way limits along an established
highway alignment eliminating the need for new alignment development. Side slopes at
4917 Waters Edge Drive, Suite 235 • Raleigh, North Carolina 27606 • Phone: [phone] • Fax: [phone]
/?A
AAI
individual wetland or stream crossings have been reduced to 3:1. Best Management
Practices have been employed throughout the corridor, including the use of grass swales
to capture and impede storm water runoff entering area streams and tributaries (see
individual site details on attached sheets). Box culverts have been countersunk with sills
on multi-barrel culverts to control low flows. Construction staging areas will be
positioned so as to avoid impacts to wetlands and streams. Exposed soils will be rapidly
re-seeded following construction as part of the erosion and sediment control program.
Mr. Alsmeyer as requested mitigation at three stream sites (Sites 2, 3, and 5 - see
attached Sheet 6 of 24 for summary and subsequent sheets for site specific details; impact
areas labeled as Sites 2, 6, and 8 on ESC schematics) deemed to exhibit important aquatic
functions. Total impact requiring mitigation is 202.6 feet. The Town of Cary proposes
payment to the N.C. Wetland Restoration Program (NCWRP) for mitigation of project
related impacts. The NCWRP has agreed to provide needed mitigation (see attached
confirmation from NCWRP).
All stream systems within the proposed corridor are subject to buffer protection under the
Neuse River Riparian Area Rule (15A NCAC 2B.0233). However, a linear road project
impacting less than 150 feet of buffer at any designated stream represents an allowable
use and mitigation is generally not required. ESC reviewed this project with Mr. John
Hennessey, DWQ, on February 29, 2000. Mr. Hennessey concurred with the findings of
this study and. confirmed that mitigation would not be required for Neuse Buffer
approval.
In summary, the Town of Cary requests approval for use of NWP #14 for impacts to a
total of 0.1634 acre of wetland and 294.3 linear feet of stream channel at six locations
along the Davis Drive improvement corridor. Mitigation for 202.6 linear feet of stream
impact will be provided through payment to the NCWRP. By copy of this letter, we are
also requesting 401 Water Quality Certification review under General Permit #3375 and
compliance with the Neuse River Riparian Area Rule.
We would appreciate your attention to this matter at your earliest possible convenience.
Please feel free to call me at the number listed above if you have any questions or require
additional information.
Sincerely,

Brian A. Wiles, P.E.
Project Manager
DEVELOPMENT SERVICES DEPARTMENT
NOTICE TO PROCEED
DATE: September 15, 1999
TO: TranSystems Corporation
4917 Waters Edge Drive, Suite 235
Raleigh, NC 27606
PROJECT: Davis Drive Widening
PROJECT NO.: 99-040
You are notified that the Contract Time under the above contract will commence to
run on September 15, 1999. By that date, you are to start performing your
obligations under the Agreement. In accordance with Section 4.2 of the Agreement,
the date of Final Completion is July 15, 2000.
TOWN OF CARY
BY
Tim Bailey, P.E.
Engineering Director
TOWN Of CARY
318 North Academy Street • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005
te1919-469-4030 • fax [phone]• www.townofcary.org

OF WATER
QG
r_
Pre-Construction Notification (PCN) Application Form
For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401
General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules
This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE)
Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or
Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's
(DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any
project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water
Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401
Water Quality Certification. The USACE Individual Permit application form is available online at
http://www.saw.usace.army.mil/wetlands/Perm anu.htm.
The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide,
Regional or General permits, and to determine which permit applies to your project, please go to the
USACE website at hqp://www.saw.usace.army.miVwetlands/re2tour.htm, or contact one of the field
offices listed at the end of this application. The website also lists the responsible project manager for
each county in North Carolina and provides additional information regarding the identification and
regulation of wetlands and waters of the U.S.
The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant
which 401 Certification will apply until the 404 Permit type has been determined by the USACE.
Applicants are encouraged to visit DWQ's 401/Wetlands Unit website at
http://h2o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality
Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The
applicant is also advised to read the full text of the General Certification (GC) matching the specific 404
Permit requested. In some cases, written approval for some General Certifications is not required,
provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the internet
should contact DWQ's Central Office in Raleigh at [phone].
Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources
Commission (NCWRC) is also required for projects occurring in any of North Carolina's twenty-five
counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC
regional coordinator (listed by county on the last page of this application).
Page 1 of 12
CAMA Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on
the last page of this application) the applicant should also contact the North Carolina Division of Coastal
Management (DCM) at [phone]. DCM will determine whether or not the project involves a
designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency.
In such cases, DCM will require a Coastal Area Management Act (LAMA) Permit and will coordinate
the 404/401 Permits.
USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms,
photos, etc. to the applicable USACE Regulatory Field Office (addresses are listed at the end of this
application). Upon receipt of an application, the USACE will determine if the application is complete as
soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant
to address information needs for all USACE Nationwide, Regional or General permits, as well as
information required for State authorizations, certifications, and coordination. Fully providing the
information requested on this form will result in a complete application for any of the USACE
Nationwide, Regional or General permits. To review the minimum amount of information that must be
provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 65 Fed.Reg. 12893
(March 9, 2000), available at http://www.saw.usace.army.miI/wetiands/nnfinalFedRegpdf.
Processing times vary by permit and begin once the application has been determined to be complete.
Please contact the appropriate regulatory field office for specific answers to permit processing periods.
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. If written approval is required or specifically requested for a 401
Certification, then a non-refundable application fee is required. In brief, if project impacts include less
than one acre of cumulative wetland/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 $475 is
required. A check made out to the North Carolina Division of Water Quality, with the specific name of
the project 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.htm1. 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
for a 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.
Page 2 of 12
Office Use Only: Form Version April 2001
USACE Action ID No. DWQ No.
If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than
leaving the space blank.
L Processing
I . Check all of the approval(s) requested for this project:
® Section 404 Permit
? Section 10 Permit
® 401 Water Quality Certification
® Riparian or Watershed Buffer Rules
2. Nationwide, Regional or General Permit Number(s) Requested: N W P #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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (see section VIII - Mitigation), check here:
IL Applicant Information
Owner/Applicant Information
Name: Town of Cary Engineering Department
Mailing Address: 318 North Academy Street
Cary, North Carolina 27511
Telephone Number: 919-469-4030 Fax Number: 919-460-4935
E-mail Address:
2. Agent 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: Attn: Mr. Ray Lovinggood, P.E.
Company Affiliation: TranSystems Corporation
Mailing Address: 4917 Waters Edge Drive, Suite 235
Raleigh, North Carolina 27606
Telephone Number: 919-233-8125 Fax Number: 919-233-1841
E-mail Address: rdloving oodC&transystems.com
Page 3 of 12
111. 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: Davis Drive Widening
2. T.I.P. Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN):
4. Location
County: Wake Nearest Town: Cary
Subdivision name (include phase/lot number):
Directions to site (include road numbers, landmarks, etc.):
South of Park village Dire to north of Morrisville Carpenter Road (SR-3014)
5. Site coordinates, if available (UTM or Lat/Long): See attached
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Describe the existing land use or condition of the site at the time of this application:
Linear highway corridor; adjacent land use is mixed rural, residential, and commercial
7. Property size (acres): 3.85 miles
Nearest body of water (stream/river/sound/ocean/lake): Turkey Creek, Crabtree Creek,
Lake Crabtree
9. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at hqp://h2o.enr.state.nc.us/admin/maps/.)
Page 4 of 12
10. Describe the purpose of the proposed work: Widening of existing two lane roadway
facility to multi-lane highway
11. List the type of equipment to be used to construct the project:
Roadway construction equipment
12. Describe the land use in the vicinity of this project: Mixed rural, residential, and
commercial
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.
Jurisdictional determinations discussed with Mr. Eric Alsmeyer, COE on February 1, 2000 and
confirmed in the field with Mr. Alsmeyer on February 1], 2000.
Matters related to 401 Water Quality Certification and Neuse Buffer determinations discussed
with Mr. John Hennessey on February 29, 2000.
V. Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application: Improvements to Davis Drive are occurring in sections. Improvements to other
Davis Drive segments will be forthcoming.
VI. Proposed Impacts to Waters of the United States/Waters of the State
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. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
Page 5 of 12
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. Wetland Impacts
Wetland Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
(es/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
1 Fill 0.0649 N 500 Wet Shrub
1 Mech. Clearing 0.0213 N 500 Wet Shrub
2 Excavation 0.0059 N <50 Forested Wetland
2 Mech. Clearing 0.0248 N <50 Forested Wetland
4 Fill 0.0190 N 200 Wet Shrub
4 Mech. Clearing 0.0098 N 200 Wet Shrub
5 Fill 0.0072 N <50 Shrub/Emergent (West)
Forested (East)
5 Excavation 0.0007 N <50 "
5 Mech. Clearing 0.0098 N <50 "
* List each impact separately and identify temporary impacts. Impacts include, but arc not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.)
List the total acreage (estimated) of existing wetlands on the property:
Total area of wetland impact proposed: 0.1634 acre
2. Stream Impacts, including all intermittent and perennial streams
Stream Impact
Site Number
(indicate on tna)
Type of Impact* Length of
Impact
(linear feet)
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent'?
specify)
2 Fill 0.0035 UT Turkey Creek 47.6 ft P
3 Fill 0.0027 UT Turkey Creek 21.1 ft I
5 Fill 0.0301 UT Crabtree Creek 133.9 ft P
6 Fill 0.0251 UT Crabtree Creek 91.7 ft P

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, 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 must be included.
Page 6 of 12
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps arc available through the USGS at 1-800-358-9616, or online at
www.ust:s.eov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.toyozone.com,
www.maRguest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 294.3 feet
3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U.S.
Open Water Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Name of Waterbody
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
4. 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
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, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
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.
Impacts will occur within right-of-wav limits alone existing hivhwav corridor rather than on new
location. Roadway side slopes at jurisdictional locations are 3:1 or less. Drainage will be
directed through grassy swales before entering ditches and channels where feasible. Culverts
with be countersunk with sills on multi-barrel culverts to control low flow.
Page 7 of 12
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 March 9, 2000, 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 NCWRP 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, available at
hM2://h2o.enr.state.nc.us/ncwetlands/strmgide.htm1.
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.
Mitigation was requested for three stream systems by Mr. Eric Alsmeyer on 2/11/00. The
three systems are labeled Sites 2, 3, and 5 on the attached mapping. Total impact at these
three sites is 202.6 linear feet. The Town of Cary proposes payment to the N.C. Wetland
Restoration Program (WRP) for project related impacts. WRP has agreed to provide needed
mitigation (see attached letter).
DWQ has indicated that no mitigation would be required due to the linear nature of the
project and the fact that impacts at any "single and complete" project location are less than
150 feet.
Page 8 of 12
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrv/index.htm. If
use of the NCWRP is proposed, please check the appropriate box on page three and provide
the following information:
Amount of stream mitigation requested (linear feet): 202.6
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federal/state/local)
land?
Yes ® No ?
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
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
X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only)
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.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ® No ? If you answered "yes", provide the following information:
Page 9 of 12
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
(square feet) Multiplier Required
Mitigation
1 3
2 1.5
Total 202.6 N/A
Zone 1 extends out 30 tect perpendicular trom near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or.0260.
Linear transportation project. Each jurisdictional crossinu, considered "single and comnlete"
project. Impacts at individual sites less than 150 feet. No mitigation is required (per John
Hennessey, DWQ, personal communication 2/29/00).
XI. Stormwater (DWQ Only)
Describe impervious acreage (both 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.
Roadside drainage will be directed through grassy swales before entering ditches and channels
where feasible.
XI1. Sewage Disposal (DWQ Only)
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.
N/A
XIII. Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application?
Yes ? No
Page 10 of 12
XIV. 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 Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
US Army Corps of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office Alexander Cherokee Iredell Mitchell
US Army Corps of Engineers Avery Clay Jackson Polk
151 Patton Avenue Buncombe Cleveland Lincoln Rowan
Room 208 Burke Gaston Macon Rutherford
Asheville, NC 28801-5006 Cabanas Graham Madison Stanley
Telephone: [phone] Caldwell Haywood McDowell Swain
Fax: [phone] Catawba Henderson Mecklenburg Transylvania
Raleigh Regulatory Field Office Alamance Durham Johnston Rockingham
US Army Corps Of Engineers Alleghany Edgecombe Lee Stokes
6508 Falls of the Neuse Road Ashe Franklin Nash Surry
Suite 120 Caswell Forsyth Northampton Vance
Raleigh, NC 27615 Chatham Granville Orange Wake
Telephone: [phone] Davidson Guilford Person Warren
Fax: [phone] Davie Halifax Randolph Wilkes
Washington Regulatory Field Office Beaufort Currituck Jones
US Army Corps Of Engineers Bertie Dare Lenoir
Post Office Box 1000 Camden Gates Martin
Washington, NC 27889-1000 Carteret* Green Pamlico
Telephone: [phone] Chowan Hertford Pasquotank
Fax: [phone] Craven Hyde Perquimans
Wilmington Regulatory Field Office Anson Duplin Onslow
US Army Corps Of Engineers Bladen Harnett Pender
Post Office Box 1890 Brunswick Hoke Richmond
Wilmington, NC 28402-1890 Carteret Montgomery Robeson
Telephone: [phone] Columbus Moore Sampson
Fax: [phone] Cumberland New Hanover Scotland
Pitt
Tyrrell
Washington
Wayne
Union
Watauga
Yancey
Wilson
Yadkin
*Croatan National Forest Only
Page 1 1 of 12
US Fig
US Fish and Wildlife Service
Raleigh Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Telephone: [phone]
,h and Wildlife Service / National N
US Fish and Wildlife Service
Asheville Field Office
160 Zillicoa Street
Asheville, NC 28801
Telephone: [phone]
larine Fisheries Service
National Marine Fisheries Service
Habitat Conservation Division
Pivers Island
Beaufort, NC 28516
Telephone: [phone]
North Carolina State Agencies
Division of Water Quality
401 Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Telephone: [phone]
Fax: [phone]
Division of Water Quality
Wetlands Restoration Program
1619 Mail Service Center
Raleigh, NC 27699-1619
Telephone: [phone]
Fax: [phone]
CAMA and NC Coastal Counties
State Historic Preservation Office
Department Of Cultural Resources
4617 Mail Service Center
Raleigh, NC 27699-4617
Telephone: [phone]
Fax: [phone]
Division of Coastal Management Beaufort Chowan Hertford Pasquotank
1638 Mail Service Center Bertie Craven Hyde Pender
Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans
Telephone: [phone] Camden Dare Onslow Tyrrell
Fax: [phone] Carteret Gates Pamlico Washington
NCWRC and NC Trout Counties
Western Piedmont Region Coordinator Alleghany Caldwell Watauga
3855 Idlewild Road Ashe Mitchell Wilkes
Kernersville, NC 27284-9180 Avery Stokes
Telephone: [phone] Burke Surry
Mountain Region Coordinator Buncombe Henderson Polk
20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford
Waynesville, NC 28786 Clay Macon Swain
Telephone: [phone] Graham Madison Transylvania
Fax: [phone] Haywood McDowell Yancey
Page 12 of 12
North Carolina
Department of Environment and Natural Resources
Michael F. Easley, Governor
William G. Ross Jr., Secretary
July 8, 2003
Jerry McCrain, President
EcoScience
1101 Haynes Street, Suite 101
Raleigh, NC 27604
Subject: Project: Davis Drive Widening
County: Wake
e?A
NCDENR
The purpose of this letter is to notify you that the North Carolina Wetlands Restoration Program (NCWRP) is
willing to accept payment for stream impacts associated with the subject project. Please note that the decision by
the NCWRP to accept the mitigation requirements of this project does not assure that this payment will be
approved by the U.S. Army Corps of Engineers and the N.C. Division of Water Quality Wetlands/401 Unit. It is
the responsibility of the applicant to contact these agencies to determine if payment to the NCWRP for impacts
associated with this project is appropriate.
This acceptance is valid for six months from the date of this letter. If we have not received a copy of the issued
404 Permit/401 Certification within this time frame, this acceptance will expire.
Based on the information supplied by you in a letter dated July 7, 2003 the stream restoration that is necessary to
satisfy the compensatory mitigation requirements for this project is summarized in the following table. The
maximum amount of mitigation that the NCWRP will accept for this project is also indicated in this table.
Stream
linear feet) Wetlands Riparian
(acres) Riparian Buffer
(ftz)
Impacts 203
Mitigation Maximum 406
The stream mitigation will be provided as specified in the 401 Water Quality Certification and/or Section 404
Permit for impacts associated with the subject project in Cataloging Unit 03020201 of the Neuse River Basin.
The mitigation will be performed in accordance with the Memorandum of Understanding between the N.C.
Department of Environment and Natural Resources and the U.S. Army Corps of Engineers dated November 4,
1998.
If you have any questions or need additional information, please contact Carol Shaw at [phone].
Sincerely, n
ge,,? X I /%
Ronald E. Ferrell,
Program Manager
cc: Cyndi Karoly, Wetlands/401 Unit
Andrea Wade, USACOE-Raleigh
Steve Mitchell, DENR Regional Office-Raleigh
file
Wetlands Restoration Program 1619 Mail Service Center
[phone]
Raleigh, NC 27699-1619
Fax: [phone]
SIT:
VICINITY
MAP
WETLAND AND SURFACE
WATERS PERMIT
TOWN OF CARY
WAKE COUNTY
DAVIS DRIVE WIDENING
PROJECT; T.O.C. 99 - 020
DAVIS DRIVE WIDENING
SHEET 1 OF AL DATE
NORTH CAROLINA.
.wi.11240wei
S
A.1
PROJECT C)--Il=c.
qz
CORRIDOR
'7
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top
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1:126.720
Source: 1990 USGS 30x60 Quadrangle Map (Raleigh, NC)
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EcoScience
PROJECT CORRIDOR LOCATION
Davis Drive
Wake County, North Carolina
Dwn. by: MAF
FIGURE
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Date:
Dec 1999
1Project
a 1 90-033
Sheet—z--g

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L
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DENOTES FILL IN
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PROPERTY OWNERS
NAMES AND ADDRESSES
PARCEL NO. NAMES ADDRESSES
13 JIHAD L. LIBBUS P.O. BOX 350
MORRISVILLE, NC 27560-0350
100 CSX TRANSPORTATION 4901 BELFORT ROAD SUITE 130
JACKSONVILLE, FL 32256

16 JUINN JER LIN & 222 LOCHWOOD DRIVE W
FANG CHIH CHEN LIN CARY, NC 27511-9737
27 TODD D. & - 100 HIDDEN ROCK COURT
SARA S. CLIFTON CARY, NC 27513-8309

42 GEORGE L. COUNCIL 2412 DAVIS DRIVE
MORRISVILLE, NC 27560-9584
49 GEORGETOWNE HOMEOWNERS 3815 BARRETT DRIVE
ASSOCIATION, INC. RALEIGH, NC 27609

80 PRESTONWOOD 300 PRESTONWOOD PARKWAY
COUNTRY CLUB, INC. CARY, NC . 27513-5635

114 HUBERT E. HATCHER . 1609 MORRISVILLE CARPENTER ROAD
MORRISVILLE, NC 27560-8639

115 MILLARD FERRELL 3524 DAVIS DRIVE
MORRISVILLE, NC 27560-8806
116 KAMAL MANSOUR & P.O. BOX 349
RICHARD A. BIRGEL CAROLINA BEACH, NC 28428

TOWN OF CARY
WARE COUNTY
WETLAND AND SURFACE
WATERS PERMIT
PROJECT T.O.C. 99 - 020
DAVIS DRIVE WIDENING
SHEET z. q. OF z,y DATE 30 AP?2 o,3
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