20110906 Ver 1_401 Application_20111011

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October 11, 2011
Ian McMillan
North Carolina Department of Environmental and Natural Resources
Division of Water Quality
401 /Wetlands Unit
1650 Mail Service Center ~
Raleigh, NC 27699-1650
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OCT 1 1 2011
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RE: Pre-Construction Notification (PCN) Application
Crabtree Creek Stream Restoration (Tributary of Mine Creek)
Project Location: 8000 Block of Old Deer Trail, NC 27615
Dear Mr. McMillan,
Enclosed are five copies of the completed "Pre-Construction Notification (PCN)
Application Form" and five sets of plans (two sets of full size plans and three 11 x 17 inch
copies) for the referenced project. In addition, I have attached a check for $570.00 for the
permit fee. I am submitting one copy of this application to the United States Army Corps
of Engineers.
Thank you for your assistance in processing this application. If you need additional
information, please contact me at [phone].
Sincerely,
Robert Kirkpatrick
Project Engineer
Public Works Department
Stormwater Management Division
222 West Hargett Street, Suite 301
Post Office Box 590
Raleigh, North Carolina 27602-0590
www.raleighnc.gov [e-mail]

919.996.3940 Office
Enclosures Robert Kirkpatrick 919.996.4028 Direct
Project Engineer 919.278.6475 Mobile
cc: Danny Bowden, P.E.
Mark Senior, P.E.
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590, RALEIGH, NORTH CAROLINA 27602
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the Corps: ?X Section 404 Permit ? Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: NW 27 or General Permit (GP) number:
1 c. Has the NWP or GP number been verified by the Corps? 7 - ?X Yes ? No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
?X 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express NX Riparian Buffer Authorization
le. Is this notification solely for the record
because written approval is not required? For the record only for DWQ
401 Certification:
? Yes ?X No For the record only for Corps Permit:

? Yes ?X No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in-lieu fee program.
N Yes ?X No
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 In
below. N Yes 0 No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes 0 No
2. Project Information
2a. Name of project: Crabtree Creek Stream Restoration/Stabilization - Old Deer Trail Site
2b. County: Wake
2c. Nearest municipality / town: City of Raleigh
2d. Subdivision name: N/A p9i k!&'
2e. NCDOT only, T.I.P. or state project no: N/A orl-r
3. Owner Information a i 20,?
3a. Name(s) on Recorded Deed: City of Raleigh DENR-WATERQUAL11Y
3b. Deed Book and Page No. N/A TER BRANCH
3c. Responsible Party (for LLC if
applicable): N/A
3d. Street address: 222 West Hargett Street
3e. City, state, zip: Raleigh, NC 27607
3f. Telephone no.:
3g. Fax no.:
3h. Email address:
Page 1 of 10
PCN Form - Version 1.4 January 2009
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ? Other, specify:
4b. Name: Carl Dawson, PE. Public Works Director
4c. Business name
(if applicable): City of Raleigh / Public Works Department / Stormwater Utility Division
4d. Street address: 222 West Hargett Street, Room 301
4e. City, state, zip: Raleigh, NC 27602
4f. Telephone no.: 919-996-4028
4g. Fax no.: 919-996-7633
4h. Email address: [e-mail]
5. Agent/Consultant Information (if applicable)
5a. Name: Ron Johnson
5b. Business name
(if applicable): AECOM
5c. Street address: 701 Corporate Center Drive, Suite 475
5d. City, state, zip: Raleigh, NC 27607
5e. Telephone no.: 919-854-6210
5f. Fax no.: 919-854-6259
5g. Email address: [e-mail]
Page 2 of 10
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): 1707783479
1 b. Site coordinates (in decimal degrees): Latitude: 35.887723 Longitude: -78.638099
1c. Property size: 5.45 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project: unnamed tributary to Mine Creek
2b. Water Quality Classification of nearest receiving water: C, NSW
2c. River basin: Neuse River Basin
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
See attached sheet for additional information.
3b. List the total estimated acreage of all existing wetlands on the property: 0
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 1,400
3d. Explain the purpose of the proposed project:
To stabilize the existing channel and remove a source of sediment to the Mine Creek Drainage
3e. Describe the overall project in detail, including the type of equipment to be used:
See attached sheet for additional information.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past? ? Yes ?X No ? Unknown

Comments: No wetlands are present
4b. If the Corps made the jurisdictional determination, what type
of determination was made? ? Preliminary ? Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known): Agency/Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
N/A
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past? ?Yes ?X No ? Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project? ? Yes ?X No
6b. If yes, explain.
The City of Raleigh, as part of the Honeycutt Greenway Project, proposes to construct a greenway trail on this property after channel restoration is
complete. The current greenway trail design places the trail along the eastern side of this channel restoration.
Page 3 of 10
PCN Form - Version 1.4 January 2009
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
? Wetlands ?X Streams -tributaries ?X Buffers ? Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T 2b.
Type of impact 2c.
Type of wetland 2d.
Forested 2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other) 2f.
Area of
impact
(acres)
W1 Choose one Choose one Yes/No -
W2 Choose one Choose one Yes/No -
W3 Choose one Choose one Yes/No -
W4 - Choose one Choose one Yes/No -
W5 Choose one Choose one Yes/No -
W6 Choose one Choose one Yes/No -
2g. Total Wetland Impacts:
2h. Comments:
No wetland impacts are anticipated.
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T) 3b.
Type of impact 3c.
Stream name 3d.
Perennial (PER) or
intermittent (INT)? 3e.
Type of
jurisdiction 3f.
Average
stream
width
(feet) 3g.
Impact
length
(linear
feet)
S1 P Stabilization UT to Mine Creek PER Corps 8 361
S2 Choose one
S3 Choose one _
S4 Choose one -
S5 Choose one
S6 Choose one
3h. Total stream and tributary impacts 361
3i. Comments:
Structures will be placed in the stream to stabilize banks. Three meander bends will be regraded to eliminate a sharp bend, to avoid the removal of
large trees, and to reduce sediment input into the stream.
Page 4 of 10
PCN Form - Version 1.4 January 2009
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individual) list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T 4b.
Name of waterbody
(if applicable) 4c.

Type of impact 4d.

Waterbody
type 4e.

Area of impact (acres)
01 Choose one Choose
02 Choose one Choose
03 Choose one Choose
04 Choose one Choose
4f. Total open water impacts
4g. Comments: No open water impacts are anticipated
5. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
5a.
Pond ID number 5b.
Proposed use or
purpose of pond 5c.
Wetland Impacts (acres) 5d.
Stream Impacts (feet) 5e.
Upland
(acres)
Flooded Filled Excavated Flooded Filled Excavated
P1 Choose one
P2 Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required? ? Yes ? No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin? ?X Neuse ? Tar-Pamlico ? Catawba ? Randleman ? Other:
6b.
Buffer Impact
number-
Permanent (P) or
Temporary T 6c.
Reason for impact 6d.
Stream name 6e.
Buffer
mitigation
required? 6f.
Zone 1
impact
(square
feet 6g.
Zone 2
impact
(square
feet
131 T Stream stabilization UT to Mine Creek No 15,454 5,908
B2 Yes/No
B3 Yes/No
B4 Yes/No
B5 Yes/No
B6 Yes/No
6h. Total Buffer Impacts: 15,454 5,908
6i. Comments:
Buffers to be reestablished after stabilization is complete.
Page 5 of 10
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Buffer impacts minimized by not accessing or disturbing north side of stream bank.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
All work will be performed in the dry. Flow will not be directed into the new channel until the banks are stabilized with coir matting or vegetation. Strict
erosion control measures will be in place.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State? ? Yes ?X No
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps

2c. If yes, which mitigation option will be used for this

project? ? Mitigation bank

? Payment to in-lieu fee program

? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:

3b. Credits Purchased (attach receipt and letter) Type: Choose one
Type: Choose one
Type: Choose one Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Makin a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ? Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: Choose one
4d. Buffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments: N/A
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Project is to restore an unstable stream system. Mitigation is not required.
Page 6 of 10
PCN Form - Version 1.4 January 2009
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires Yes OX No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
6c. 6d. 6e.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet) (square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
Buffers that are disturbed during construction will be replanted with trees. Additionally, some areas currently maintained as residential lawn will be
planted with trees and shrubs.
6h. Comments: Stream stabilization activities are listed as Exempt.
Page 7 of 10
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified
within one of the INC Riparian Buffer Protection Rules? ?X Yes ? No
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
No increase in impervious surface - no stormwater will be generated by the project
? Yes ?X No
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? %
2b. Does this project require a Stormwater Management Plan? ? Yes ?X No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? City of Raleigh

3b. Which of the following locally-implemented stormwater management programs
apply (check all that apply): ?x Phase II
0 NSW
? USMP
? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ?X No
4. DWQ Stormwater Program Review

4a. Which of the following state-implemented stormwater management programs apply
(check all that apply): ?Coastal counties
?HQW
?ORW

?Session Law 2006-246
?Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ? No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No
Page 8 of 10
PCN Form - Version 1.4 January 2009
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
I a. Does the project involve an expenditure of public (federal/state/local) funds or the Yes ? No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ? Yes ?X No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.) ? Yes ? No
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ?X No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ?Yes 0 No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes E9 No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
The project will not generate any wastewater.
Page 9 of 10
PCN Form - Version 1.4 January 2009
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes ?X No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ? Yes ?X No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted. -
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
USFWS web site, NC Natural Heritage Program database (GIS), and site visit by qualified biologists.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes Q No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Wake is not a coastal County, and none of the streams can provide spawning areas for anadromous fish species.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation ? Yes ?X No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
Review of GIS data layers from NC Onemap.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ?X No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination?
Review of NC Flood mapping and Wake County mapping.

?r
Applicant/Agent's Printed Name Applicant/Agent's S ature ?} Date
(Agent's signature is valid only f n authorizatidif
letter from the applicant is rovided.
Page 10 of 10
Additional Information for PCN
Crabtree Creek Watershed Stream Stabilization - Old Deer Trail Site
B. Project Information and Prior Project History
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of
the project at the thime of this application:
The Old Deer Trail site is located on the south side of Old Deer Trail between Running Cedar
Trail and Clear Brook Drive. The site is owned the the City of Raleigh and is undeveloped.
However, adjacent landowners tend to maintain and mow the property up to the stream banks.
Residential areas are located to the east and west of the tract. A public sewer main is present on
the property on the west side of the stream. A narrow band of trees is present along the west
bank of the stream. More trees are present along the east bank.
To the north of Old Deer Trail the stream is relatively stable and contains a large amount of
bedrock that appears to help maintain that stability. The stream passes through a culvert beneath
Old Deer Trail. At this point the stream becomes incised with tall steep eroding banks. The
stream flows in a southerly direction for about 370 feet before taking a sharp bend to the west.
The stream is incised and downcut below the roots of the existing trees. The banks are either
vertical or undercut. Significant erosion is noted in a number of locations. It is estimated that the
streambanks in the project area are contributing about 84 tons of sediment per year to the Mine
Creek watershed (see attached worksheet).
3e. describe the overall project
The project will stabilize the stream channel within its existing channel, with some realignment
of the existing channel where needed to preserve trees. Bankfull benches will be constructed to
allow for flooding. Rock structures consisting of grade control vanes will be constructed to help
control grade and assist with stability. Vegetation will be used to stabilize the banks.
Vegetative buffers will be reestablished adjacent to the channel. Equipment to be used will
consist of backhoes, front end loaders, and other typical construction equipment. The attached
design plans show the project in detail.
Worksheet 5-10. Summary form of annual streambank erosion estimates for various study reaches.
Stream: Mine Creek, Reach - Old Deer Trail Location: Off Old Deer TH., Raleigh, NC
Graph Used: NC Erodibility Total Bank Length (ft): 471 Date: 6/12/2008
Observers: IJ, KL Valley Type: Stream Type: C/Cb
1 2 3 4 5 6 7 8
Station (ft) BEHI rating
(Worksheet
5-8)
(adjective) NBS rating
(Worksheet
5-9)
(adjective) Bank
erosion
rate (Figure
5-38 or 5-
39) (ft/yr) Length of
bank (ft) Study bank
height (ft) Erosion
subtotal
[(4)x(5)x(6)]
(ft3/yr) Erosion
Rate
(tons/yr/ft)
{[(7)/27] x
1.3/(5))
1. 0-28 (L) Moderate Moderate 0.060 28 4.3 7.224 0.01
2. 28-66 (L) Moderate Moderate 0.060 38 8 18.24 0.02
3. 30-75(R) High High 0.200 45 6.5 58.5 0.06
4. 75-107(R) High High 0.200 30 6.5 39 0.06
5. 66-127(L) High High 0.200 61 6.5 79.3 0.06
6. 107-170(R) Moderate High 0.140 63 7 61.74 0.05
7. 127-159(L) High High EO.200 32 7.8 49.92 0.08
8. 170-261 (R) Moderate Moderate 91 8 43.68 0.02
9. 159-235(L) High High 0.200 76 7 106.4 0.07
lo. 261-381(R) Very High Very High 1.200 120 7 1008 0.40
11.279-346(L) High High 0.200 67 6.2 83.08 0.06
12. 381-426 (R) High High 0.200 45 7 63 0.07
13. 346-401 (L) Moderate Moderate 0.060 55 2 6.6 0.01
14. 426-471 (R) High Extreme 0.380 45 7 119.7 0.13
15.235-279(L) Low Low 0.005 44 2.5 0.55 0.00

Sum erosion subtotals in Column (7) for each BEHI/NBS combination Total
erosion
ft3/yr)

1744.9

Convert erosion in ff/yr to yds3/yr {divide Total erosion (R/yr) by 27} Total
erosion
ds3/yr)

64.6
Convert erosion in ydg/yr to tons/yr {multiply Total erosion (yd? yr) by

1.3} Total
erosion
(tons/yr)

84.0
Calculate erosion per unit length of channel {divide Total erosion
(tons/yr) by total length of stream (ft) surveyed} Total
erosion
(tons/yr/ft)

0.2
Copyright © 2006 Wildland Hydrology WARSSS page 5-81
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