19980591 Ver 1_COMPLETE FILE_19980701

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WOOLPERT
WOOLPERT LLP
4141 Rosslyn Drive
Cincinnati, OH 45209-1183
513.272.8300
Fax: [phone]
www.woolpert.com

August 4, 2000 y? GROUP ,
?Y SECTIM,
Mr. John Dorney
Department of Environment and Natural Resources
Water Quality Lab
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
RE: City of Raleigh, Big Branch Stream Stabilization, 98-0591
Dear Mr. Dorney:
On the behalf of the City of Raliegh, we would like to request that the review for the Section
401 application for the referenced project be initiated. We have completed the North Carolina
Environmental Policy Act review and have included copies of these letters to you.
Please let me know if you require any additional information by contacting me at
513.272.8300 or email [e-mail].
Sincerely,
%OAA?-- . 14.
Warren C. High
Senior Environmental Scientist
Enclosures
cc: Danny Bowden, City of Raleigh
Flint Holbrook, Woolpert
= o?y
North Carolina
Department of Administration
James B. Hunt, Jr., Governor
March 13, 2000
Ms. Gloria Putnam
NC Dept. of Env. & Nat. Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Putnam:
Katie G. Dorsett, Secretary
Re: SCH File # 00-E-4300-0352: Environmental Assessment/Finding of No Significant Impact
Proposed 1600 LF of Streambank Stabilization for Bing Branch Located in the Citv of Raleigh
The above referenced environmental impact information has been reviewed through the State
Clearinghouse under the provisions of the North Carolina Environmental Policy Act.
No comments were made by any state/local agencies in the course of this review. Therefore, no further
environmental review action on your part is required for the compliance with the Act.
Best regards.
Sincerely,
lvls, Chrys Baggett
Environmental Policy Act Coordinator
Attachments
cc: Region J

s
116 West Jones Street Raleigh, North Carolina 27603-8003 Telephone [phone]
An Ggasl Oppununity / AtTnn:liNQ Action Gmpluyer
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
NT JR +
Warren C. High
Woolpert LLP WOOLPERT LLP
4141 Rossyln Drive
Cincinnati, Ohio 45209-1183
Re: SCH File #00-E-4300-0352; DENR Project #1028
Big Branch Stream Improvements, City of Raleigh, Wake County
F. ?71
March 15, 2000
Y
MAR 2 0 2000
Dear Mr. High: V
On March 13, 2000, the State Clearinghouse deemed the North
Carolina Environmental Policy Act review on the above project complete (see
attached letter from the Clearinghouse). It is now acceptable to proceed with
your permit applications through the Division of Water Quality for the
proposed project. No further actions on the Environmental Assessment are
required. ,
If there is anything I can assist you with, please do not hesitate to give
me a call at [phone], ext. 567.
Sincerely,
Gloria F. Putnam
Environmental Specialist
enclosure (SCH ltr)
cc: John Dorney, Wetlands Unit
Ken Schuster, Raleigh Regional Office
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617
website: h2o.enr, state. nc. us PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE 49TI53N EMPLOYER - 50% RECYCLEO/10% POST-CONSUMER PAPER

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt,',Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Awn %woo-ftftwoom
NCDENR.
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
August 7, 2000
Wake County
DWQ Project #: 980591
APPROVAL OF 401Quality Certification and ADDITIONAL CONDITIONS and Neuse River Buffer Rules
Mr. Danny Bowden
Dept of Stormwater Management
City of Raleigh
Post Office Box 590
Raleigh, NC 27602
Dear Mr. Bowden:
You have our approval, in accordance with the attached conditions and those listed below, to fill material in 1,600 linear
feet of streams for the purpose of conducting stream bank stabilization efforts at the Big Branch project, as you described in your
application dated June 23, 1998 and Environmental Assessment (SCH File #00-E-4300-0352). After reviewing your application,
we have decided that this fill is covered by General Water Quality Certification Number 3258. This certification allows you to use
Nationwide Permit Number 13 when the Corps of Engineers issues it. This approval is also valid for the Neuse River buffer rules
(15A 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 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 he 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.
1. Stormwater shall be directed to flow at non-erosive velocities across the entire protected stream buffers.
2. If this work is contemplated to be used as compensatory mitigation, then additional written approval from DWQ (including
monitoring) is needed.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act
within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter
150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh. N.C. 27611-
7447. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone John Dorney at 919-733-9646.
Sind
Kerr T. Stevens S
Attachment cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
File copy W259
Central Files
Raleigh D;visicn of Land Rescurccs
Warren High; Woolpert LLP
Division of Water Quality • Wetlands/401 Unit
1621 Mail Service Center Raleigh NC 27669-1621 Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer
50% recycled/10% post consumer paper
Z8/04/00
10:13 05132728301
August 4, 2000

wOOLPMT
WOOLPERT LLP
4141 ROfflyn DNVe
Gnannad, OW 45209-1 1 8 3
Mr. John Dorney
Department of Environment and Natural
Water Quality Lab
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
CINTI
9002/004

RE: City of Raleigh, Big Branch Stream tabilization, 98-0591
Dear Mr. Dorney:
On the behalf of the City of Raliegh, we wot
401 application for the referenced project be
Environmental Policy. Act review and have i;
Please let me know if you require any
513.272.8300 or email warren.hiehC&.
513.272.8300
FAX; $13.272.5301
wwwwadpert.com Sincerely,
Warren C. High
Senior Environmental Scientist
Enclosures
cc: Danny Bowden, City of Raleigh
Flint Holbrook, Wool ert
t>n L
? r
?j
like to request that the review for the Section
tiated. We have completed the North, Carolina
ailed copies of these letters to you.
information by contacting me at
Poe
00.-II P
wre-
08/04/00 10:13 *05132728301
WOOT.PIPID7' f'TNTI
0003/004
:North Carolina
Department of Admit istration
James B.'Hunt, Jr., Governor Katie G. Dorsett, Secretary
March 13, 2000
Ms. Gloria Putnam
NC Dept. of Env. & Nat. Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Putnam:
Re: SCH File # 00-E-4300-0352; Environmental Asscssrnet/Finding of No Significant Impact
Proposed 1600 LF of Streambank, Stabilization for Bid= ranch Located in the City of Raleigh
The above referenced environmental impact information has be fn reviewed through the State
Clearinghouse under the provisions of the North Carolina Cnvi nmental Policy Act.
No comments were made by any state/local agencies in the couise of this review. Therefore, no further
environmental review action on your part is required for the compliance with the Act.
Best regards.
1
Sincerely,
h
1vls. tr hrys Daggett
Environmental Policy Act Coordinator
Attachments
cc: Region J
116 West Jones Street Raleigh, North Carolina 37603-8Q03 Telephone [phone]
Ad Cgeol OppunUOY / Ani1urUi%d Aomit Eu?p10yer
I •
F

Q8/04/00 10:13 $5132728301

Warren C. High
Woolpert LLP
4141 Rossy1n Drive
Cincinnati, Ohio 45209-1183
w00LPERt CINTI 11004/004
NORTH CAROLINA DEPARTMENT OF
ENV[ ONMENT AND NATURAL RESOURCES
DIVISION or WATER QUALITY
March 5, 2000
MAR 2 0 2000
WOOLPER7 LLP
Re: SCH File #00-P,-4300.0352;
Big Branch Stream Improv
Dear Mr. High: I '
Project #1028
City of Raleigh, Wake County
On March 13, 2000, the State Clearinghouse deemed the North
Carolina Environmental Policy Ac" .as the above project complete (see
attached letter from the Clearinghouse It is now acceptable to proceed with
your permit applications through the Division of Water Quality for the
proposed project. No further actions o the Environmental Assessment are
required. ,
If there is anything I can assist ou with, please do not hesitate to give
me a call at [phone], ext. 567.

oria P. Putnam
1r vironmental Specialist
enclosure (SCH Itr)

cc: John Dorney, Wetlands Unit
Ken Schuster, Raleigh Regional, Office
1617 MAIL ERVICE CENTER, RALi1GM, NORTH CAROt.INA 37899-1817
wabsite: h2o. nnstate.mus PHONE [phone] PAX 919.733.9919
AN EQUAL OPPORTUNITY / AP/IpMATIVS ACTIO EMPLAYER - SO% RECYCLED/10% POST-CONSUMER PAPER
- ?k
i?z?ys
O ?o
67
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
A
101W IT 1 ? •
A 2
AM ! NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
December 20, 1999
Wetlands/401 Unit
Regional Wetlands contacts
FROM: \ John Dorney
RE: Legation of signing authority
During my abs ce from Decemb 22 to December 31, 1999, the following
persons are hereby dele ted my sic g authority for 401 Water Quality Certifications
and approvals under the N se Riv Buffer rules. They will also handle my duties as
supervisor of the Wetlands/40 it with consultation with Dennis Ramsey as he believes
appropriate.
Decembe/22 Todd St. JN
DecembeEric Fleek
DecembeEric Fleek
Decem r29 Cyndi Bell
Dece er 30 Todd St. John
Auth.
Cc;/ Dennis Ramsey
Coleen Sullins
Laverne Meeks
Todd St. John
?'?'
0-
.y
N
Non-Discharge Branch Wetlands/401 Unit 1621 Mail Service Center aleigh, North Carolina 27669-1621
Telephone [phone] # 733-9959
An Equal Opportunity Affirmative Action Employer 50tX
cled/10% post consumer paper
a?
a

City Of 6i aleigh
North Carolina
November 15, 1999
Mr. John Dorney
NCDENR
Division of Water Quality
4401 Reedy Creek Road
Raleigh, NC 27607

Y y
RE: Big Branch Channel Project - 401 Water Quality Certification
Dear Mr. Dorney:
In follow-up to your letter of October 22, 1999, Woolpert, our consultant for this project,
has provided a response to your letter of April 29, 1999. We wish for you to continue
the review of this project as the environmental assessment and revisions to it were
submitted to your office sometime back.
Please give me a call at 890-3030 if you have questions or need additional information.
Sincerely,

99;1xC41_J_0_____
Danny Bowden, PE
Stormwater Engineering Manager
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602
Recycled Paper
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11/11/99 16:31 00513 272 8301 WOOLPERT CINTI IM 002/009
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WOOLPERT
November 11, 1999
Mr. Eric Fleek
Department of Environment and Natural Resources
Division of Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
RE: Improvements to Big Branch, DWQ# 12355 Raleigh, Wake County, North Carolina
Dear Mr.Fleek:
This letter concerns our telephone conversation on November 9, 1999 concerning our response to
your letter dated April 20, 1999. For some reason, our letter dated June 3, 1999 did not get to you and
due to this, no action has been taken on this project since that date. This letter has this previous
correspondence attached.
We hope that this long awaited information meets with your approval. We are sending you a large-
scale drawing by overnight express to assist you in the review. Should you require additional
information or have any questions, contact me at 513.272.8300 or at warren.hiahawoolpert.com.
Sincerely,
%Va-o. C-114
Warren C. High
Environmental Scientist
Enclosures
wch
cc: Flint Holbrook, Woolpert
Danny Bowden, City of Raleigh
John Dorney, DENR
WOOLPERT LLP
4141 i2osslyn Drive • Cincinnati, Ohio 45209-1183
513.272.8300 • Fax: [phone] • www.woolpert.com
11/11/99 16:31 8`513 272 8301 WOOLPERT CINTI U003/009
M
ok"
hil?j
WOOLPERT
June 3, 1999
Mr. Eric Fleck
Department of Environment and Natural Resources
Division of Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
RE: Improvements to Big Branch, DWQ# 12355
Raleigh, Wake County, North Carolina
Dear Mr.Fleek:
This letter is in response to your correspondence dated April 20, 1999 to Gloria Putnam in response
to the Environmental Assessment that we have provided for the referenced project. Our response to
your comments is addressed in the order presented in your letter.
1. We recognize that Streamco and Banker's dwarf willows are not native to this region and in
response to your comments, we have substituted a list of grasses, shrubs, and trees that are native
to the region and specifically adapted for this type of application. This list is attached. It is our
goal that grasses and shrubs will be planted together in the coir although property owner input
may influence the final design.
2. Within the project area, we are not proposing to riprap the full extent of any banks, although
there are already portions of the stream where this has occurred. We are proposing to add
vegetative stakes or posts to these existing areas to provide canopy and riparian cover. The
amount of bank that will be riprapped at the toe and vegetated will be 635 feet long. The amount
of bank that will have bioengineering performed is approximately 2905 feet in length. The
amount of bank where selective tree removal and planting will occur is highly variable based on
changing site conditions. The entire length of stream is targeted for the planting of trees to
improve the riparian corridor and tree removal will be based on the potential for clogging the
stream. We have included a revised figure that shows the limits of each stabilization measure, a
table showing the length of each stabilization measure by bank, and figures depicting each
stabilization measure. These revisions have been incorporated into the revised environmental
assessment and await your review and concurrence.
3. We understand that this project will require a variance of the Neuse Buffer Rules and we will
complete the required application.
WOOLPERT LLP
409 East Monument Avenue @ Dayton, Ohio 45402-1261
937.461.5660 • Fax: [phone] www.woolpert.com
11/11/99 16:32 0513 272 8301 WOOLPERT CINTI Q004/009
Mr. Eric Fleck
June 3, 1999
Page 2
We hope that these measures meet with your approval. Should you require additional information or
have any questions, contact me at 937.341.9259 or at [e-mail].
Sincerely,
Warren C. High
Environmental Scientist
Enclosures
wch

i
11/11/99 16:32 ^C 513 272 8301 w00LPERT CINTI
Q005/009
/ 13
Dzz- O o ? o
L7 °a CD
a0 a CZ7
rl
Riparian shrubs ! ! ! ! ! O /?
Sato channel
ements
Bidf?- ered `rLJ-- Imo- Jl h?f // /
No ` ! I ?,•-~ L7 1`_r / \/ O 4
Proposed top of bank a tie ft F*V toe
Fxisiing top of bank ' b
Well Existing toe of skgre
Fg1JA of lank ?J
Popapofhank Ri ra tcewgh
? _raa. ?. Plan with npa n 1 r ? ?
W-Weir Ae'v swa End improvements
" • ? ?? t; a C\/I
a
ad how Q?J CD Ta?liontaeaistng
?
side slope forena] Prapo of
Existingdprap
Tk-wwGhChannellapmvemenis(- isft top of bank
cehertaddiiastobemaslmctedIn l1 II fI ;J Z?/> yM ~ Existing toe of slope
Proposed Culvert ?'?` have
Wlhlar
Improvements // ? O
ELI ED ED
CZ1
0 C:3
n 'D
Figure 4
Preferred Alternative
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Gra hic Scale in Feet
North
0 200 400 800
Source: Woolpert LLP, 1998.
11/11/99 16:32 00 513 272 8301 WOOLPERT CINTI
9006/009
PLANT RIPARIAN TREES
10' O.C. AS NEEDED
INSTALL COIR =1BER EROSION
MAT (OR EQUAL) AND PLANT
RIPARIAN SHP.UBS
i
SEE ANCHOR PATTERN
DETAIL Sf ` j
4
VARIES '
2 -3'
EXISTING BANK
2'
WRAP FABRIC
AROUND BASE
3'
i'
- I=1 11=1 f =1 I??, !!?r?
I I I=1 11=1 I I-III-III-I 11=1 !?%/ ; i
CL I RIP-RAP Wj FILTER FABRIC
LINER AT ALL ROCK/ SOIL INTERFACES;
SLOPE AT 2:1
1. SHAPE SLOPE TO DESIGN GRADE, REMOVING ALL CLODS,
CLUMPS, ROCKS, AND OTHER MATERIAL OF SIGNIFICANT
SIZE TO PREVENT THE MATTING FROM LYING FLUSH TO
THE SURFACE CONTOUR.
CONTRACTOR SHALL USE WOODEN STAKES TO SECURE FABRIC
AS RECOMMENDED BY FABRIC MANUFACTURER.
Figure 6
R.iprap Toe with
Vegetated Bank
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: Woolpert LLP, 1996.
11/11/99 16:33 '&513 272 8301 WOOLPERT CINTI IM007/009
PLANT RIPARIAN TREES -
AT 10' O.C. AS NEEDED
PLANT UPPER 2/3 OF BANK
WITH GRASS MIX AND LIVE
EXISTING TOP OF BANK STAKES/SAPLINGS ON UPPER
2/3 OF BANK J
EXISTING BANK _ \
PLANT LOWER 1/3 I
OF BANK WITH AQUATIC \ - ---___ _ ------ ' --- -- 6----
PLANT MIX
BIOLOG STAKED AND
PLANTED WITH AQUATIC
PLANT I.
EXISTING TOE WOOD STAKES
OF BANK SPACED AT 3' O.C.
PROPOSED BANK
(3.5H:'1V)
12 W NATURAL FIBER EROSION CONITROL BLANKET
SECURE WITH DEAD STAKES SPACED IN ACCORDANCE
WITH MANUFACTOPS RECOMMENDATIONS
WOOD STAKES NOTE:
SPACED AT 3' O.C. SEE PLANTING PLAN FOR
12'• SPACING/DENSITY REQUIREMENTS
PROPOSED BANK
LIVE STAKES/RIPARIAN SHRUBS--7 \ GRASS MIX
v v v v w w w w w w w '4'
w ® w ? v ® ®w w® ® w ? w ® w
w w w w w w J w v w
w® w ®w w w® w ® w® w ®J. w
w ® w® w w® w ®w w® .v G
w w w w w w w w w w w w
----------------------------------------------
EXISTING TOE OF BANK / i
BIOLOG
-AQUATIC PLANT MIX
Figure 7
Bioengineered Bank
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: WoolpertLLP, 1998-
11/11/99 16:33 $513 272 8301 WOOLPERT CINTI IM 008/009
12'-18' TTP.
TIE STRUCTURE
INTO BANK 2'
SECTION A-A
SECTION B-B
?B
A Ay
EXISTING TOE yy, __I FLOW
CLASS 11 RIPRAP
30'-4S'
(TYP.)
TIC S7RUCTUR
WT0 BANK 2'-3" D
B
PLAN
Figure 9
J-Weir
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Gra hic Scale in Feet
North MMM
0 1000 2000 4000
Source: Woolpert LLP.1998,
11/11/99 16:34 V513 272 8301 WOOLPERT CINTI
0009/009
NOTES: 11 CLUSTERS ARE COMPRISED OF 3-5 BOULDERS.
21 A MINIMUM OF 3 CLUSTERS SHOULD BE USED PER
FISH ENHANCEMENT STRUCTURE.
3) THE CLUSTERS SHOULD BE TRIANGULAR AND
PLACED IN THE DOWNSTREAM HALF OF A LONG
RIFFLE OR GLIDE.
h) EXI5TING BOULDERS SHOULD BE USED, IF AVAILABLE.
IF NONE ARE AVALABLE. USE CLASS II RIP-RAP.
5) CLUSTERS SHOULD BE PLACED AT LEAST I/3 OF THE
STREAM WIDTH APART
USE EXISTING BCU IF NOT
AVAILABLE, USE C-S II RIP-RAP.
_B
FLOW
W/3
EXISTING TOE W L? C)O
O
CLASS II RIPRAP
I ~.g
PLAN
Figure 10
W-Weir
SECTION B-B
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Graphic Scale in Feet
North
1 0 1000 2000 4000
FLOW-
NORMAL WATER-
SURFACE
"
CHANNEL 801TOM-,?
TYPE "A" ROCK `
SECTION A-A
I
I
I u,rc wr« a _,
I
Source: WoolpertLLP, 1998.

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Dirt E I V E D
NTW'A
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
OCT 2 7 1999 October 22, 1999
Danny Bowden
Stormwater EngineOIEAL ENGINEERING
City of Raleigh
PO Box 590
Raleigh NC 27602
Dear Mr. Bowden:
Big Branch Stabilization Project
WQC Project # 980591
Wake County
On June 25, 1998 you requested a 401 Water Quality Certification from the Division
of Water Quality for your project located near Big Branch in Wake County. We wrote
you on July 28, 1998 to place the project on hold until an Environmental Assessment was
done to satisfy the State Environmental Policy Act (SEPA). We wrote to you on April
29, 1999 discussing concerns that we have regarding the Environmental Assessment for
the Big Branch stream Improvements project and placing it on hold until those concerns
are addressed. As of today, we have not received a response to our earlier letter. Unless
we receive a written response from you by November 15, 1998, we will consider that you
have withdrawn this application and are not interested in pursuing the project at this time.
Please call me at 919-733-9646 if you have any questions or would like to discuss
this matter.
J11fn R. Ddrfie
ater Quality
cc: Raleigh DWQ Regional Office
Central Files
File Copy
Raleigh Field Office Army Corps of Engineers
Program
980591.clr
Division of Water Quality • Non-Discharge Branch
1621 Mail Service Center Raleigh, NC 27699-1621 • Telephone [phone] • FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
11/11/99 16:31 %2513 272 8301 WOOLPERT CINTI 1J001/009
Woolpert Fax
WOOLPERT If you do not receive the number of pages listed below,
please call sender or Woolpert at 513.272.8300
To: Danny Bowden
Company: City of Raleigh
Dept of Stormwater Mgmt
Fax Number: 919-890-3832
Pages Sent: 9
(including cover page)
From: Warren C. High
Department: Water Resources
Order Number: 55263.05.074
Date: November 11, 1999
Notes:
Danny, Attached is the package that we sent to Eric Fleek and John Dorney.
WOOLPERT LLP
4141 Rosslyn Drive • Cincinnati, Ohio 45209-1183
513.272.8300 • Fax 513.272,8301 - www.woolpertmrn
f
DIV WATER QUALITY Fax:[phone]
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
David C. Dister
Woolpert LLP
409 East Monument Avenue
Dayton, Ohio 45402-1261
Dear Mr. Dister,
Oct 19 '99 1002 P.02
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
April 29, 1999
The Division of Water Quality (Division) has completed its review of the April
1999 Environmental Assessment (EA) for the Big Branch Stream Improvements project
located in Raleigh, North Carolina. The ,attached comments received from Eric Fleek of
the 'Wetlands Group need to be addressed before the EA can proceed to the next step of
review. Note that only the comments numbered one and two need to be addressed at this
time. -
With respect to Mr. Fleek's third comment, it is recognized that your EA
identifies, on page 10, the need for a variance from the Environmental Management
Commission (EMC) from the Neuse Buffer Rules in order to implement the preferred
alternative. In order for the EMC to consider this variance, the EA review of this
proposal will have to be concluded, and a Finding of No Significant Impact will need to
be reached: • Therefore, -no additional-information regarding-the variance-needs -to -be
included in the EA. For your reference, I am forwarding a copy of the FMC's 1999
ineeting schedule,
In addition to addressing Mr. Fleek's comments, the EA cover sheet needs to be
modified to include Division contact information. Enclosed please find an example cover
sheet with this information.
When a response to the Division's comments have been addressed to our
satisfaction, and the EA is revised accordingly, eight copies of the document should be
P.O. Box 29635, Raleigh. North Carolina 27626-0535 Telephone 919.733-soa3 FAX # [phone]
An Equal Opportunity Affirmative Action Employer 50% recycledtl 00/, post consumer paper
DIV WATER QUALITY Fax:[phone] Oct 19 199 1002 P.03
forwarded to me for review at the Departmental level. Please contact Mr. Fleck directly
to resolve his concerns, and copy me on any written correspondence. Noto that I will also
need written verification for my records that Mr. Fleck is satisfied with your response to
his concerns. If possible, this letter should also be included in the EA_
For your planning efforts, be aware that that there are two more reviews which
need to be completed. First, there will be the Departmental review (three weeks) and
subsequently, the State Clearinghouse (SCH) review (30 calendar days)...
Please contact me at [phone], ext. 567 if you have any questions.
Sincerely,
Gloria F. Putnam
Environmental Specialist
Cc: Eric Fleek, Wetlands Group

DIV WATER QUALITY Fax:[phone]
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
April 20, 1999

LO_* Gloria Putnam
THROUGH. John Dorney
FROM: Eric Fleek
Oct 19 '99 10:03 P.04
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NawURAt_ RESOURCES
, .._ ,MCT: Big Branch Channel Improvements (DWQ# 12355)
Based on a review of the EA, the following comments and recommendations for
inclusion in the FONSI are offered:
Under 2.4 (Page 3) it is stated that woven coir netting vegetated with "grass or
shrubs" will be installed above the riprapped bank toe. Figure 6 notes that the coir
mat is to be planted with "Streamed and Banker's Dwarf Willows" (Sarix pururea,
and S. cottettx)- These Salix species are not native to NC (Radford 1968). Please
remove them from the planting list and substitute them with native NC species. In
addition, please clarify the language. Will "grass or shrubs" be planted in the coir
material (as noted on Page 3) or will Salix also be planted (as noted in Figure 6)?
2. Figure 4 seems to depict two reaches on the east bank receiving bioengineering. The
west bank is depicted as receiving bioengineering in three reaches. Is all the distance
between areas receiving the riprap toe with vegetated bank treatment to be
bioengineered, or just a small portion of the reach? Please provide data regarding the
following: 1) Length of bank to be fully riprapped, 2) Length of bank in which only
the toe is to be riprapped and vegetated with coir matting, 3) Length of bank
bioengineered, 4) Estimated length of bank revegetated with trees (including those
areas where existing trees are to be removed for improved flow or bank integrity
reasons).
WetlandV401 Unit 4401 Reedy Q=k Road Raleigh, NorM Carolina 27607
Telephone [phone] PAX 9 733-9959
An Equal opportunity Affumaave Achoa Employer 50% ngde&10% post oonsaww paper
DIV WATER QUALITY Fax:[phone] Oct 19 199 10.03 P.05
3- As noted in NCDW Q's march s, 1999 letter this project will likely require a variance
from the Neuse Buffet Rules. This variance can only be granted froin the EMC. rf not
already completed, the enclosed form should be filled out and sent to the appropriate
address to schedule a hearing before the EMC.
If there are any further questions regarding this matter please feel free to contact 3& Eric
Fleek at [phone] or at eri"[e-mail]

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ENVIRONMENTAL ASSESSMENT
BIG BRANCH STREAM IMPROVEMENTS
RALEIGH, NORTH CAROLINA
3 DECEMBER 1999
Lead Agency Contact:
Ms. Gloria Putnam
North Carolina Division of Water Quality
P.O. Box 29535
Raleigh, North Carolina 27626-0535
[phone] ext. 567

City of Raleigh Contact:
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Project Engineer:

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Mr. Danny Bowden, PE
Department of Stormwater Management
P.O. Box 590
Raleigh, North Carolina 27602
[phone]
K. Flint Holbrook, PE, PH
Woolpert LLP
8731 Red Oak Blvd., Suite 101
Charlotte, North Carolina 28217
[phone]
Environmental Consultant:
Mr. Warren High
Woolpert LLP
4141 Rosslyn Drive
Cincinnati, Ohio 45402-1261
[phone]
CNL1t---
1111?.

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TABLE OF CONTENTS
Section Page
1.0 Purpo se and Need .................................................................................................... 1
2.0 Alternatives .............................................................................................................. 2
2.1 Alternative l: Do-Nothing .......................................................................... 2
2.2 Alternative 2: Modify Banks and Place Riprap along Entire Reach.......... 2
2.3 Alternative 3: Modify Banks and Stabilize Using Bioengineering
along Entire Reach .................................................................................... 3
2.4 Alternative 4: Selected Clearing and Stabilization (Preferred Alternative) 3
3.0 Existing Environment .............................................................................................. 6
3.1 Topography/Geology .................................................................................. 6
3.2 Soils ............................................................................................................ 6
3.3 Vegetation and Wetlands .......................................................... 7
4
3 ..................
Surface Waters and Flood
lai
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3.5 Groundwater ............................................................................................... 8
3.6 Land Use ..................................................................................................... 8
4.0 Environmental Consequences ............................................................. 10
.....................
4.1 Changes in Land Use .................................................................
.

4.2 .
...............
Forest Resources .........................................................................................
10
4.3 Wetlands ......................................................................................
. 10
4
4 .
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Prime or Uni
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4.5 Public Lands ............................................................................................... 11
4.6 Scenic and Recreational Areas .............................................. 11
4
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Areas of Archaeolo
ical
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a
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4.8 Air Quality .................................................................................................. 11
4.9 Groundwater Quality .................................................................................. 12
4.10 Noise Level ............................................................................ 12
4
11 .....................
Surface Water Su
lies
. pp
.......................................................................... 12
4.12 Shellfish, Fish; and Their Habitats ............................................. 13
4
13 ................
Wildlife and Their Habitats
. ........................................................................ 13
4.14 Introduction of Toxic Substances ............................................... 14
4.15 ................
Eutrophication of Receiving Waters
.......................................................... 14
5.0 Mitigative Measures ................................................................................................ 15
6.0 References ................................
............................................................................... 16
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TABLE OF CONTENTS (CONTINUED)
Appendix
• DENR, Division of Water Quality, SEPA Letter, August 10, 1998
• DENR, Division of Water Quality, Water Quality Certification Letter, July 28, 1998
• U.S. Army Corps of Engineers, Raleigh Field Office Fax, March 1, 1999
• North Carolina Department of Cultural Resources Letter, March 1, 1999
• DENR, Division of Soil and Water Conservation Letter, March 3, 1999
• DENR, Division of Forest Resources Letter, February 26, 1999
• DENR, Division of Water Quality, Water Quality Certification Letter, March 8, 1999
• DENR, Division of Parks and Recreation Letter, March 12, 1999
• DENR, Division of Water Quality, Wetlands Restoration Program Letter, March 22, 1999
• City of Raleigh, Letter from Danny Bowden to Gloria Putnam, March 24, 1999
• DENR, Division of Water Quality, EA Review Memorandum, April 20, 1999
• DENR, Division of Water Quality, EA Review Letter, April 29, 1999
• DENR, Division of Water Quality, EA Review Telecommunication, November 16, 1999
• Tree Planting Plan
• Grass Seed Specification
• Photographs along Big Branch
LIST OF TABLES
Table 1 - Summary of Proposed Stream Improvements, Alternative 4 (Preferred Alternative)
Table 2 - Big Branch Creek Macroinvertebrates (collected August 13, 1998)
LIST OF FIGURES
Figure 1 - Regional Map
Figure 2 - Vicinity Map
Figure 3 - Study Area Map
Figure 4 - Preferred Alternative
Figure 5 - Full Rip-Rap Bank
Figure 6 - Riprap Toe with Vegetated Bank
Figure 7 - Bio-Engineered Bank
Figure 8 - High Flow Swale
Figure 9 - J-Weir
Figure 10 - W-Weir
Figure 11 - Soils Map
Figure 12 - Vegetation Map
Figure 13 -100-Year Modeled Floodplain Map
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1.0 PURPOSE AND NEED
' Big Branch is a 4-square-mile watershed situated on the north side of the City of Raleigh
' North Carolina (hereafter referred to as the City) that drains southward directly into Crabtree
Creek. The location of the watershed is shown on Figure 1 and the Study Area is shown in
Figure 2. The near build-out conditions that currently exist have contributed to drainage
problems throughout the watershed and have led to a gradual degradation of the channel
' conveyance systems. The City had a comprehensive watershed master plan developed
(Woolpert LLP, 1998) to identify ways to mitigate water quantity and quality problems. This
plan contained a number of recommendations to improve the drainage system and reduce
' flooding. This document is an environmental assessment (EA) of the selected recommendation
for structural improvements for storm water management within the watershed and is being
prepared under the guidelines of the North Carolina Administrative Code, Title 1, Department
of Administration, Chapter 25, North Carolina Environmental Policy Act, Sections .0100
through .0500. The lead agency is the North Carolina Department of Environment and Natural
Resources (NCDENR), Division of Water Quality (DWQ).
' The selected recommendation was to improve a 1,900 linear-foot section ofthe Big Branch
stream from Hardimont Road to the confluence of Tributary C, near Eastgate Park (see Figure
' 3). The channel in this area is in a residential neighborhood of single family homes built in the
late 1950's and 1960's. The channel in this section is meandering and is exhibiting signs of an
urbanized watershed and a disturbed riparian zone. Many of the trees in the riparian zone have
' exposed roots and are unstable. The channel banks show signs of severe erosion along the
outsides of bends and near obstructions such as trees that have fallen into the stream (see
Photographs in Appendix). The channel is adjusting to the urbanized watershed and in doing
so, it is impacting residential land use, property values, infrastructure, aesthetics, and water
quality, and aquatic habitat. The overbanks on both sides are back yards of residential property.
In general, the overbank areas can be classified as lightly wooded. In several locations,
property owners have attempted to control the channel bank erosion and migration with riprap
and timber retaining walls with varying degrees of success. Flooding along this section is
extensive and ranges from frequent nuisance flooding to less frequent severe structural
' flooding. The flooding problems on this reach will be discussed further in Section 3.4, Surface
Waters and Floodplains.

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2.0 ALTERNATIVES
The watershed master plan for Big Branch determined that improving the storage capacity of
six major detention facilities (i.e. ponds) upstream of the study area was not a feasible approach
due to insufficient additional storage volume and concerns over flooding houses adjacent to
these ponds. The acquisition and removal of flooded properties was also discussed and the
community impacts would be negative and significant in nature. This left instream solutions as
the only feasible approach to the existing problems. An onsite meeting was held and the
following alternatives were discussed with the City of Raleigh, the NCDENR, and the U.S.
Army Corps of Engineers.
2.1 Alternative 1: Do-Nothing
The Do-Nothing Alternative would provide no channel improvements. If no channel
improvements (such as installing riprap or bio-engineering) were made along this reach, the
improvements to the existing culvert at Hardimont Road would provide some measure of flood
reduction. Furthermore, no highflow channels adjacent to major meanders or straightening of
Big Branch would be constructed to increase stream capacity. With this alternative, houses
would continue to flood, property values would be impacted, the stream banks will continue to
erode, and habitat will continue to be degraded. A larger problem of no action is that property
owners will likely take action on their own. While it is illegal to modify the stream and the
riparian corridor, that is precisely what is occurring. There are already segments of the stream
where all the trees have been removed, the channel shaped, and lined with riprap. This
alternative does not fulfill the purpose or the need for the project and will likely result in more
negative impact in the long term.
2.2 Alternative 2: Modify Banks and Place Riprap along Entire Reach
This alternative calls for removing some of the stream meanders to increase hydraulic
efficiency and to increase cross sectional area to increase hydraulic efficiency and storage
capacity. Under this alternative, the existing bottom width would generally remain the same. In
some areas, the toe could be re-aligned to improve hydraulics or to avoid fences, large trees, or
other obstructions during construction. The existing banks will be sloped back to a 2:1 side
slope and Class I riprap will be placed on the banks at a thickness of 18". In some areas (i.e.
outside of bends, near sewer crossings) Class II riprap may be required. In the overbank areas,
trees removed during construction would be replaced as necessary to maintain the existing
canopy.
Additional measures such as high flow weirs (to improve hydraulic capacity under high flow
conditions in areas where the channel makes S-meanders), weirs to minimize unwanted
sediment deposition, isolated hard improvements (to protect banks subject to severe erosion),
fish enhancement structures (such as boulder clusters and riffle pools), and other techniques
could be used as required.
' There are several advantages to this alternative, the most important of which is that it fulfills
many of the needs of the project. Under high velocities and along the outsides of bends, riprap
and stable slope geometry is important to long term stability and erosion reduction. Where
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property owners are impacting the stream with riparian clearing, debris disposal, and
herbicides, this alternative is the only one that will succeed. At certain locations, the
modification of the channel to reduce constrictions will reduce erosion, reduce scour, reduce
localized flooding, and prevent hydraulic jumps.
There are also negative impacts due to this alternative. This alternative would disturb the
riparian buffer along the stream and natural banks would be replaced with riprap. Aquatic
habitat would be lost and water quality would be degraded. In the long term, this alternative
would require maintenance as the stream proceeded to aggrade and degrade to reach
equilibrium. Due to the impacts of this alternative on a tributary of the Neuse River, it would
be very difficult to permit.
While this alternative has advantages, the difficulty of obtaining a Section 401 permit is
considered a fatal flaw. For the purposes of this document, we will only discuss this alternative
as a comparison as appropriate. This is a non-preferred alternative.
2.3 Alternative 3: Modify Banks and Stabilize
Using Bio-Engineering along Entire Reach
This alternative would require the selective clearing of trees and snags, selective channel
modification to reduce down-valley migration, bank modification to create a stable slope, and
the soft armoring of banks using bio-engineering techniques. Instream measures such as
bendway weirs, j-weirs, and w-weirs would modify the direction and force of high flows.
Stream banks would be protected at the toe of the slope with riprap and the faces would be
reinforced with woven coir fabric and selective plantings of native riparian trees and shrubs and
staking. High flow swales would be constructed to carry storm water across the inside bends,
thus creating greater channel capacity without affecting the channel forming bankfull event.
The advantage of this approach is that it is the most natural approach possible. It will increase
and improve the riparian habitat as well as the aquatic habitat. The construction of this
alternative would have the fewest construction impacts because the equipment is smaller and it
is more labor intensive. This method becomes stronger and more stable over time.
The disadvantage of this alternative is the high cost due to intensive labor requirements,
contractors are unfamiliar with the construction practices, and plant materials cost more than
rock. The bio-engineered banks would be more prone to failure if a large storm event occurred
immediately after construction. There are several places along the outsides of banks where bio-
engineering would fail due to excessive velocities. Bio-engineering is especially susceptible to
impacts due to property owners disposing of yard waste, cutting, mowing, and herbicide
application. Due to these problems, there are several locations where bio-engineering simply
will not work. Due to this fatal flaw, an alternative that consists strictly of bio-engineering is
not preferred.
' 2.4 Alternative 4: Selected Clearing and Stabilization (Preferred Alternative)
This alternative is a combination of all of the alternatives along this stream segment. Bio-
engineering is proposed where it is feasible and riprap is located along the stream where
velocities exceed what is recommended for bio-engineering. At other locations intermediate
methods for bank stabilization are used and at some locations no action is taken.
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Under this alternative, the selective removal of trees that present obstruction to flow and/or
appear to be unstable will be performed to maintain hydraulic capacity. Where trees are
removed the bank will be reshaped and stabilized. Trees that are removed from the channel
banks will be replaced with a similar species in the overbank area adjacent to the location at
which the tree was removed. There is a list of acceptable tree species provided in the Appendix.
The various methods for stabilizing the stream banks are described below:

• Full Rip-Rap Bank - A full riprap bank is recommended on the outsides of bends where
water velocity exceeds 8 feet per second (fps), where there is infrastructure that must be
protected, or where the property owner has impacted the bank. (See Figure 5.)
• Rip-Rap Toe with Vegetated Bank - In this method, the stream bank is pulled back to
make the slope less steep. The bank is then covered with a biodegradable material such as
coir netting and vegetated with grass or shrubs. There is a list of acceptable grasses and
shrubs in the Appendix. Rip-rap is then used to secure the toe of the bank. (See Figure 6.)
• Bio-Engineered Bank - The bio-engineered bank is used where velocities do not exceed 6
fps. At these locations, the stream bank is pulled back to make the slope less steep, biologs
are installed at the toe and the slope is covered with a coir fabric and planted with live
stakes or shrubs. There is a list of acceptable live stakes and shrubs in the Appendix. (See
Figure 7.)
• Grassed Swales - Where point bars and strong meanders have formed, the best solution to
maintain a bankfull flow while allowing a large storm to pass, is through the use of
reinforced, grassed swales. There is a list of acceptable grasses for use in these swales in
the Appendix. (See Figure 8.)
• J-Weirs and W-Weirs - This alternative also calls for in-stream measures to redirect flow.
' These measures will include J-weirs (Figure 9) and W-weirs (Figure 10). These weirs are
intended to maintain the bankfull event, relocate the thalweg, redirect flows away from
sensitive areas, erode point bars, increase velocities selectively, and provide aquatic
habitat.

The locations and length of each of these types of stream improvement measures proposed for
Alternative 4, the Preferred Alternative, are depicted in Figure 4 and tabulated in Table 1. It is
noted, that although proposed locations are shown in Figure 4, the exact locations of these
measures will be based on property owner permission, field conditions at the time of
construction, and how the stream reacts to the in-stream measures. This alternative presents a
mix of methods that are best suited for each location. This approach will also serve as a
demonstration where different methods placed side by side can be compared. Based on the
advantages of this alternative, it is the Preferred Alternative.
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Table 1- Summary of Proposed Stream Improvements,
Alternative 4 (Preferred Alternative)
East Bank West Bank In-Stream TOTAL
Improvement* Length (feet) or No.
Bio-Engineered Bank 1,250 1,655 0 2,905
Rip-Rap Toe with Vegetated Bank 85 550 0 635
Flood Flow Swale 1 1 0 2
W-Weir 0 0 2 2
J-Weir 4 4 0 8
* The locations of the proposed improvements are shown on Figure 4.
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3.0 EXISTING ENVIRONMENT
This section summarizes the existing environments within and adjacent to the study area.
3.1 Topography/Geology
The topography of the study area consists of undulating/rolling terrain within the Piedmont
physiographic province. As this region occurs near the southern edge of the Piedmont, it may
be more appropriate to characterize the study area as being within the transition zone, or "fall
zone," between the Piedmont and Coastal Plain physiographic provinces. The geologic strata
underlying the study area consists largely of metamorphic biotite gneiss and schist, intruded by
numerous sills and dikes of granite, pegmatite, and aplite (NC Geological Survey, 1985).
Mineral resources of economic importance such as coal, gas, oil, gravel, and dimension stone
do not occur within the study area. Soils within the area are typically high in sand content, but
not sufficient for industrial mining.
3.2 Soils

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The above mentioned bedrock substrate serves as the parent material in the formation of soils
typical of the Cecil soil association. Within the study area there are 11 soil types representing 5
soil series (Figure 11). Following much of the Big Branch channel are the poorly drained
Wehadkee and Bibb soils. (These two soils are very similar and are treated as one soil type.)
These soils consist of sandy clay loam and sandy loam having moderate to moderately rapid
permeability, and are subject to frequent flooding of long duration. The seasonal high water
table (HWT) is near the surface. Extensive areas of well drained Appling sandy loam, on slopes
of 2 to 15 percent, are mapped east of Big Branch. This soil type has moderate permeability
and the seasonal HWT is typically greater than 10 feet below the surface. The well drained
Cecil sandy loam, on slopes of 2 to 15 percent, is dominant west of Big Branch. This soil type
also has moderate permeability and its seasonal HWT is greater than 10 feet below the surface.
The well-drained Wilkes soils, on slopes of 10 to 20 percent, occur as a large lobe at the
southeast corner of the study area. These sandy loam/clay loam/silt loam soils have moderate
permeability and a perched water table of short duration. Bedrock is generally 2 to 4 feet below
the surface. Lastly, a small lobe of poorly drained Worsham sandy loam is mapped at the
northwest corner of the study area. This soil has moderately slow permeability and a seasonal
HWT near the surface (Cawthorn, 1970).
According to 7 Code of Federal Regulations Part 658.2, land already committed to urban
development (i.e. having 30 or more structures per 40 acres) is not included as prime farmland.
Consequently, as land within the study area is zoned single-family residential and has a density
of structures exceeding 30 per 40 acres, prime and unique farmland does not exist within the
study area. In a letter dated March 3, 1999 (see Appendix), the NCDENR, Division of Soil and
Water Conservation concurs that there is no prime or unique farmland within or adjacent to the
study area.
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1 3.3 Vegetation and Wetlands
' This region of the country is classified as the Southeastern Mixed Forest Province within the
Subtropical Division of the Humid Temperate Domain (Bailey, 1980). This area was
characterized by original forests of broadleaf deciduous and needleleaf evergreen trees such as
loblolly pine (Pinus taeda), shortleaf pine (Pinus echinata), various oaks (Quercus spp.) and
hickories (Carya spp.), sweetgum (Liquidambar styraciflua), black gum (Nyssa sylvatica), red
maple (Ater rubrum), and winged elm (Ulmus alata). The understory was typified by species
' such as flowering dogwood (Corpus florida), various viburnums (Viburnum spp.) and
blueberries (Vaccinium spp.), American beautyberry (Callicarpa americana), yaupon holly
(Ilex vomitoria), and numerous woody vines (Bailey, 1980).

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Currently, the majority of the study area is developed with residential properties, though a
narrow riparian and upland wooded corridor surrounds the channel of Big Branch (Figure 12).
The plant community here is classified as Mesic Mixed Hardwood Forest, best represented
locally at Umstead State Park six miles to the west (Schafale and Weakley, 1990). Canopy
trees present in the undeveloped areas include American beech (Fagus grandifolia), willow oak
(Quercus phellos), sycamore (Platanus occidentalis), pines (Pinus spp.), and tulip poplar
(Liriodendron tulipifera), while understory plants include hop hornbeam (Ostrya virginiana),
grapes (Vitis spp.), and giant cane (Arundinaria gigantea).
The National Wetland Inventory (NWI) map of the region (USFWS, 1995) indicates a 6-acre
palustrine forested wetland occurring along Big Branch between Hardimont Road and
Interstate 440 (mostly south of St. Albans Drive). However, during the site investigation, the
stretch between St. Albans Drive and Hardimont Road revealed a small (< 0.01 acre) palustrine
emergent marsh wetland located less than 200 feet north of St. Albans Drive and more than 30
feet southwest of Big Branch. No other wetland areas were noted adjacent to Big Branch or
within the study area.
3.4 Surface Waters and Floodplains
The principal stream within the study area is Big Branch, a tributary of Crabtree Creek,
approximately 1.0 mile south of St. Albans Drive. Further downstream to the southeast
Crabtree Creek joins the Neuse River east of Raleigh. The channel of Big Branch averages 15
to 20 feet in width (with an average width of 18 feet), has a soil and sand substrate, and has
several smaller tributaries within the study area. Tributary C denotes the end of improvements
for the proposed project. Channel erosion along the Big Branch mainstream is significant along
some stretches, with undercut steep banks and exposed root systems of mature trees evident
(see Photographs in Appendix). Bank height varies from approximately 2 to 6 feet, with an
average of height of 3 feet. The side slopes of the banks range from nearly vertical to 2:1. The
typical bank slope is 1:1. Individual property owners have installed large sized riprap along
some sections of the channel to reduce erosion and loss of property.
The 100-year modeled floodplain map of the study area (Woolpert LLP, 1997) indicates a
width that varies from 200 to 500 feet along Big Branch within the study area (Figure 12). The
modeled floodplain also indicates that many houses occur within the 100-year floodplain
limits. The proposed project is designed to reduce the extent and duration of flooding on Big
Branch during storm events.
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g Branc
s a small headwater tributary of the
Neuse River. The watershed is approximately
4 square miles in size. There is not a USGS gauging station on this tributary and there has not
been any sampling for water quality or fish. Aquatic macroinvertebrates were sampled at 2
stations within the study area. A visual inspection of the stream under high flow conditions
showed a well-developed stream that was approximately 20 feet in width. The stream has a
well-developed series of pool/riffle/run complexes. The substrate at riffle areas was generally
1 bedrock outcrops of schist and gneiss. Pools had a substrate composed of sand and gravel.
Streambanks were lined with trees except where they were eroded out or the property owners
had removed them and riprapped the banks. There was abundant aquatic habitat in the stream
including large rocks, vegetation, logs, root wads, and other natural structures.
This stream has a classification of "Nutrient Sensitive Waters" and has an unrated use support
designation according to the NCDENR.
' The aquatic macroinvertebrates were collected from two stations within the project segment.
The results of this sampling are shown in Table 2. Based on the species composition and
abundance, it was determined that water quality in the Big Branch is probably fair. At both
stations, there was a paucity of both species and specimen. The organisms that were collected
were generally tolerant of moderate amounts of pollution.
1 3.5 Groundwater
According to Cawthorn (1970), soil types along Big Branch within the study area typically
have seasonal high water tables (HWTs) near the surface, while upland soils either side of Big
Branch usually have seasonal HWTs greater than 10 feet below the surface.
3.6 Land Use
Land use within the study area is largely residential with a narrow wooded riparian corridor
following Big Branch. Houses within the study area typically occur at distances between 75
and 150 feet from Big Branch. The riparian corridor varies in width from 100 to 200 feet
through most of the study area, depending on the extent to which residents have cleared trees
and underbrush along their backyards facing Big Branch. In the region between St. Albans
Drive and Hardimont Road, the riparian width is approximately 400 feet.

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Table 2 - Big Branch Macro i nverte b rates (collected August 13, 1998)
Station 1 Station 2
Taxa -Abundances Taxa Abundance
Insecta Insecta
Ephemeroptera Heptageniidae
(Stenonema sp.) Abundant Ephemeroptera Heptageniidae
(Stenonema sp.) Abundant
Trichoptera Hydropsychidae
(Hydropyche bettenii) Abundant Ephemeroptera Baetiidae
(Baetis sp.) Rare
Coleoptera Gyrinidae
(Gyrinus marginellus) Rare Trichoptera Hydropsychidae
(Hydropyche bettenii) Abundant
Coleoptera Ehnidae
(Ancyronyx variegatus) Rare Odonata Aeshinidae
(Boyeria vinosa) Rare
Diptera Chironomidae
(Ablabesmyia sp.) Common Diptera Chironomidae
(Ablabesmyia sp.) Common
Diptera Chironomidae
(Polypedilum sp.) Common Diptera Chironomidae
(Polypedilum sp.) Common
Diptera Simuliidae (Simulium
sp.) Common Diptera Simuliidae (Simulium
sp.) Common
Diptera Tipulidae (Antocha sp.) Rare Diptera Tipulidae (Antocha sp.) Rare
Gastropoda
Physidae (Physella sp.) Common
Total Taxa 9 Total Taxa 8
(Abundance: Rare: 1-2 specimens
Common: 3-9 specimens
Abundant: 310 specimens.
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4.0 ENVIRONMENTAL CONSEQUENCES
This section addresses the impact of the Preferred Alternative 4 compared to Alternative 1, the
No Build as it applies to various environmental parameters within the proposed study area.
4.1 Changes in Land Use
The proposed project would not result in any changes in land use or require residential takes by
the preferred alternative. The Do-Nothing Alternative would not impact land use or require
residential takes. Under the Do-Nothing Alternative, property values will continue to decrease
due to flooding and erosion impacts.
1 4.2 Forest Resources
The Preferred Alternative would have the lowest impact to riparian vegetation of all the build
alternatives. Removal of riparian vegetation along Big Branch would be replaced with similar
riparian tree and shrub species through bio-engineering of banks and/or the use of hard
improvements (i.e. riprap, etc.). The Preferred Alternative would also involve the construction
of highflow channels between existing riparian trees and would selectively remove trees along
the channel that obstruct flow or appear unstable. One of the goals of this project is to increase
' the quality of the riparian buffer zone by increasing the number of trees in the buffer, increase
the diversity of trees in the buffer, and protect the existing trees by reducing erosion.
In a letter dated February 26, 1999, the NCDENR, Division of Forest Resources states that this
area is not an important buffer for a tributary to the nutrient sensitive Neuse River. That is a
correct statement, but any buffer at all should be considered important and improving that
buffer should be encouraged. The second point is that they support the concept of the project
and the establishment of bottomland hardwoods. The final point is that the tree species selected
should be native to the state and region, and grown from seed obtained regionally. The city of
Raleigh concurs with this request and will specify both trees species and vendor sources that
are native as much as practical and based on availabilit
y.
The Do-Nothing Alternative would not impact riparian or upland vegetation within the study
area. There would be a continual loss of riparian trees due to accelerated erosion in the study
area. Worse than this is the impact of individual property owners that are selectively removing
the riparian vegetation to protect existing fences, sheds, and property and replacing the trees
with riprap. While these actions are illegal, they are small, isolated acts that are impossible to
enforce. In the long term, the Do Nothing Alternative will have the greatest impact on the
forest resources.

In summation, removal of riparian trees would be greatest by the Preferred Alternative and
least by the Do-Nothing Alternative.

I Environmental Assessment 10 12199
CITY OF RALEIGH
4.3 Wetlands
The Preferred Alternative would not impact the existing small palustrine emergent marsh
wetland located just west of Big Branch and less than 200 feet north of St. Albans Drive. The
Do-Nothing Alternative would not impact jurisdictional wetlands within the study area. In a
letter dated March 2, 1999, the NCDENR, Division of water Quality's Wetlands Restoration
Program had no comments to offer.
4.4 Prime or Unique Agricultural Lands
In a letter dated March 3, 1999 (see Appendix), the NCDENR, Division of Soil and Water
Conservation states that there will be no impact to prime or unique farmland within or adjacent
to the study area.
4.5 Public Lands
' According to Section 4(f) - 49 USC 303 and 23 USC 138, federally-funded projects that
propose to use land from a publicly owned park, recreation area, wildlife or waterfowl refuge,
or any significant historic site must demonstrate that there is no feasible and prudent alternative
to the use of the land from the property.
There are no public lands, refuges, or historic sites within the study area and therefore no
impact such resources. In a letter dated March 12, 1999, the NCDENR, Division of Parks and
Recreation confirms that no such sites are likely to be affected.
4.6 Scenic and Recreational Areas
' There are no scenic or recreational areas within the proposed study area. In a letter dated March
12, 1999, the NCDENR, Division of Parks and Recreation confirms that no such sites are likely
' to be affected. Therefore, none of the build alternatives or the Do-Nothing Alternative would
impact such areas.
4.7 Areas of Archaeological or Historic Value
All publicly funded projects must comply with Section 106 of the National Historic
Preservation Act of 1966, as amended and implemented by the "Procedures for the Protection
and Enhancement of Historic and Cultural Properties" (36 CFR 800). In a letter from the North
Carolina Department of Cultural Resources dated March 1, 1999, there are no resources in the
study area. Should archaeological materials be uncovered during construction of the proposed
project, the state historic preservation office would need to be contacted.
4.8 Air Quality
As the study area consists of residential housing and a wooded riparian corridor, the air quality
can be expected to be locally good. The construction of any of the build alternatives would
Environmental Assessment 11 12199
u

result in a minimal and short-term increase in air quality degradation as a result of clearing and
grubbing of riparian vegetation and emissions from construction equipment operations. As part
of the control of air pollution during construction, no open burning of construction wastes
would be allowed. The Do-Nothing Alternative would not affect air quality within the study
area.
4.9 Groundwater Quality
The Preferred Alternative and the Do-Nothing Alternative would not be expected to impact
groundwater resources within the proposed study area.
4.10 Noise Level
Existing noise levels within the study area are considered moderate and typical of a residential
neighborhood. There would be a minimal and short-term increase in noise during construction
of the build alternative. Construction would be limited to day light hours and would be short in
duration. The Do-Nothing Alternative would not affect noise levels within the study area.
1 4.11 Surface Water Supplies

1

As a tributary of the Neuse River, this creek is afforded special protection under 12:6 North
Carolina Regulations 462-467, Neuse River Nutrient Sensitive Waters Management Strategy
Rules, which restricts the impacts that can occur to a tributary in the watershed. Any measures
that reduce flooding will need to follow these rules.
As the proposed project would impact greater than 500 linear feet of streambed, the project has
been issued a Section 404 permit from the U.S. Army Corps of Engineers under Nationwide
Permit 13 on July 13, 1998. A Section 401 Water Quality Certification through the NCDENR
is required and this document is in response to this permitting action.
In a letter dated March 8, 1999, the NCDENR, DWQ, Water Quality Certification Program
states that the project is not a stream restoration, but rather a stream bank stabilization. It is the
intent of the city that this project contain as many elements as possible to restore the natural
functions and values as possible to increase the water quality and riparian buffer. Within a
densely developed urban environment, the measures that are practical are sharply limited. The
definitions of stabilization and restoration can also be interpreted in many ways and elements
of both are found in this project. The second point in this letter is that the Neuse River Buffer
Rules require the protection of 50-feet of vegetative buffer. The existing vegetative buffer in
the study area is very degraded or non-existent. The Preferred Alternative calls for the
improvement of the riparian zone with the planting of numerous native trees and shrubs. The
City of Raleigh will prepare a variance request from for this project. The final point was a
request for photographs documenting the range and magnitude of erosion and thereby the need.
These photographs are included in the appendix. It is also important to note that a part of the
need for this project is the flooding of 19 homes and that the Preferred Alternative will reduce
this problem.
The Preferred Alternative would impact the instream channel and floodplain of Big Branch by
creating erosion in the short term and reducing erosion in the long term. The size and elevation
CITY OF RALEIGH
Environmental Assessment
12
12199
CITY OF RALEIGH
of the 100-year floodplain would be reduced as would the flooding in adjacent residences. The
build alternative would not impact jurisdictional wetlands. There would not be an increase in
nutrients due to the build alternative. The Do-Nothing Alternative would not impact
jurisdictional wetlands, the instream channel of Big Branch, or affect the 100-year floodplain.
4.12 Shellfish, Fish, and Their Habitats
Only aquatic macroinvertebrates in the stream were sampled. The results of this sampling
showed that water quality under low flow conditions is probably negatively impacted by yard
waste, fertilizer, herbicides, and pet feces. Other times of the year when more flow is present,
the stream is probably inhabited and used as spawning and nursery habitat by fish of the Neuse
River Basin.
The Preferred Alternative would create temporary increases in erosion and siltation by any of
the build alternatives, thus negatively impacting aquatic organisms and their critical habitats
during the construction phase of the project. However, long-term improvements to critical
aquatic habitats are expected by stabilizing the banks (minimizing erosion and siltation) and
installing fish enhancement structures by all of the build alternatives. The Do-Nothing
Alternative would not impact aquatic organisms or their critical habitats.
4.13 Wildlife and Their Habitats
M Wildlife diversity is expected to be rather limited in this residential area enclosing a degraded
riparian corridor. Mammals inhabiting the more natural riparian woodlands may include
1 adaptable species such as common raccoon (Procyon lotor), eastern fox squirrel (Sciurus
niger), eastern gray squirrel (Sciurus carolinensis), opossum (Didelphus marsupialis), and
long-tailed weasel (Mustela frenata). Common species of reptiles and amphibians expected in
such areas include five-lined skink (Eumeces fasciatus), eastern garter snake (Thamnophis
sirtalis), southern two-lined salamander (Eurycea cinigera), Fowler's toad (Bufo woodhousii
fowleri), and green frog (Rana clamitans). Resident species of birds may include mourning
dove (Zenaida macroura), downy woodpecker (Picoides pubescens), blue jay (Cyanocitta
cristata), Carolina chickadee (Parus carolinensis), and Carolina wren (Thryothorus
ludovicianus). The European starling (Sturnus vulgaris) and house sparrow (Passer
domesticus) may occur in residential areas as well.
The Preferred Alternative would create short-term noise disturbance to resident wildlife, some
of which would be temporarily displaced to adjacent riparian habitats. The long-term impacts
as a result of riparian tree removal would be mitigated by replacement with both tree and shrub
species suitable to the riparian habitat. Displaced wildlife would re-inhabit the disturbed
(audibly and physically) project site once construction ceases and new vegetation matures. The
restored riparian zone should provide more diversity and vegetative species.
The potential for rare, state listed, or federal listed flora and fauna within the study area is
considered minimal as a consequence of the degraded and fragmented nature of the narrow
riparian corridor along Big Branch. Additionally, much of the woodland bordering the stream
has been cleared of underbrush by individual landowners, and thus provides habitat only for the
more adaptable plants and animals native to the region. In a letter March 12, 1999 from the
DENR, Division of Parks and Recreation, it states that there is a record for the star-nose mole
Environmental Assessment 13 12199
1
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0

CITY OF RALEIGH
(Condylura cristata), a species of Special Concern, from along the Big Branch. A survey was
not performed for this species when biologists studied the project area. The star-nose mole is at
the southeastern edge of it's range in Raleigh. It is most often associated with wetlands and
bogs although it is reported along streams. Predators of the star-nose mole include cats and
dogs. It is probable that the study area offers marginal habitat at best. In the event that any star-
nose moles are in the study area, they would likely exhibit escape behavior during construction
and be displaced during construction. Once the project is complete, the habitat would be the
same or slightly better for this species.
The Preferred Alternative is not expected to affect species of rare, state listed, or federal listed
flora and fauna within the study area. The Do-Nothing Alternative would not affect rare, state
listed, or federal listed flora and fauna within the study area.
4.14 Introduction of Toxic Substances
Based upon the residential character of the study area, it is unlikely that significant hazardous
material sites occur within the study area. In the event that suspected hazardous materials are
uncovered during construction, the appropriate state agencies would be contacted. The
Preferred Alternative would not be expected to impact hazardous material sites within the study
area. The Do-Nothing Alternative would not impact upon hazardous material sites within the
study area.
4.15 Eutrophication of Receiving Waters
The Preferred Alternative would not be expected to increase nutrients (and thereby aid
' eutrophication) into the receiving waters of Big Branch during the construction phase of the
proposed project. However, there could be some temporary increase in petroleum products
entering the creek by the Preferred Alternative due to the use of construction equipment
adjacent to the channel for bank stabilization. The Do-Nothing Alternative would not
contribute to eutrophication of Big Branch, nor release petroleum products into the stream.

L

I Environmental Assessment 14 12199
CITY OF RALEIGH
5.0 MITIGATIVE MEASURES
Best Management Practices would be used for improvements to Big Branch by the Preferred
Alternative. Newly vegetated overbank areas would be covered with a layer of straw (or hydro-
mulched) to minimize surface erosion while herbaceous and woody plants become established.
Construction equipment would be required to minimize impacts to the channel of Big Branch
while re-shaping and stabilizing bank slopes by the build alternative. The work would begin at
the downstream segment and proceed upstream. Only a small segment of stream would be
disturbed at any one time. Restoration would be required before disturbance of a new segment
could occur. Using this method, only a small segment of stream of stream would ever be
disturbed.
Construction of this project would occur primarily from the stream. Work would be performed
during low flow and would use mostly small rubber tire equipment. If there is any base flow
during construction, impacts can be minimized by pumping water past the area of disturbance.
' The Do-Nothing Alternative would not require mitigative measures, but would not address the
purpose and need of the proposed project. Severe periodic flooding would continue along this
reach of Big Branch, causing economic loss to residents within and outside the study area.
n

J

n
1 Environmental Assessment 15 12199
u

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CITY OF RALEIGH
6.0 REFERENCES
American Birding Association. 1996. "ABA Checklist: Birds of the Continental United States
and Canada." 5th Edition, Colorado Springs, Colorado.
Bailey, Robert G. 1980. "Descriptions of the Ecoregions of the United States." U.S.
Department of Agriculture, Forest Service, Misc. Publ. No. 1391.
Burt, William H. 1980. "A Field Guide to the Mammals: North America North of Mexico." 3rd
Edition, Peterson Field Guide Series, Houghton Mifflin Co., New York, New York.
Cawthorn, Joel W. 1970. "Soil Survey of Wake County, North Carolina." U.S. Department of
Agriculture, Soil Conservation Service.
Conant, Roger and Joseph T. Collins. 1991. "A Field Guide to Reptiles and Amphibians:
Eastern and Central North America." 3rd Edition, Peterson Field Guide Series, Houghton
Mifflin Co., Boston, Massachusetts.
L]

Cowardin, Lewis M., Virginia Carter, Francis C. Golet, and Edward T. LaRoe. 1979.
"Classification of Wetlands and Deepwater Habitats of the United States." FWS/OBS-
79/31. U.S. Department of the Interior, Washington, D.C.
North Carolina Geological Survey. 1985. "Geologic Map of North Carolina."

0

Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. 1968. "Manual of the Vascular Plants
of the Carolinas." The University of North Carolina Press, Chapel Hill, North Carolina.
Schafale, Michael P. and Alan S. Weakley. 1990. "Classification of the Natural Communities
of North Carolina, Third Approximation." North Carolina Natural Heritage Program,
Division of Parks and Recreation, Department of Environment, Health, and Natural
Resources, Raleigh, North Carolina.
U.S. Fish and Wildlife Service. ND. "National Wetland Inventory Map: Raleigh East, North
Carolina 7.5-minute quadrangle."
U.S. Fish and Wildlife Service. 1995. "National Wetland Inventory Map: Raleigh West, North
Carolina 7.5-minute quadrangle."
U.S. Geological Survey. 1987. "Raleigh East, North Carolina 7.5-minute topographic
quadrangle."
U.S. Geological Survey. 1987. "Raleigh West, North Carolina 7.5-minute topographic
quadrangle."
Woolpert LLP. 1997. "Big Branch Storm Water Master Plan." Charlotte, North Carolina.
Environmental Assessment
16
12199
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CITY OF RALEIGH
FIGURES
'
• Figure 1-Regional Map
• Figure 2-Vicinity Map
• Figure 3-Study Area Map
• Figure 4-Preferred Alternative
• Figure 5-Full Riprap Bank
• Figure 6-Riprap Toe with Vegetated Bank
• Figure 7-Bio-Engineered Bank
• Figure 8-High Flow Swale
• Figure 9-J-Weir
' • Figure 10-W-Weir
• Figure 11-Soils Map
• Figure 12-Vegetation Map
' • Figure 13-100 Year Modeled Floodplain Map
I I

u

F
Environmental Assessment
12199

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41
Regional Map
hlacellonia ` R9 Big Branch Channel Improvements
City of Raliegh, Wake County,
r
YKS.oa? YiM Rr'U,r North Carolina
sr IL-
a Not to scale
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Figure 2
Vicinity Map
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Gra hic Scale in Feet
North MME1
1 0 1000 2000 4000
Source: USGS 7.5 Minute Series Topographic Quadrangle, Raleigh East and
Raleigh West, North Carolina, 1987.

Compton oad
Q o
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o End
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d ° o o b
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Figure 3
Study Area Limits
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Graphic Scale in Feet
North
0 200 400 800
Source: Woolpert LLP, 1998.

i
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00
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lob 1998
Proposed Culvert °A ° + toe wM
Improvements W-W*
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Preferred Alternative
- Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Graphic Scale in Feet
North 4
0 200 400 800
Source: Woolpert LLP, 1998.

SEED & MULCH
DISTURBED GROUND
/ GRADE TO DRAIN
EXISTING CHANNEL BANK----____? 18° CLASS I
/ FILTER FABRIC
CREEK BED 1' 3
N
WRAP FABRIC
AROUND BASE
Figure 5
Full Riprap Bank
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: Woolpert LLP, 1998.

PLANT RIPARIAN TREES
10' O.C. AS NEEDED
!NSTALL COIR FIBER EROSION
MAT (OR EQUAL) AND PLANT
RIPARIAN SHRUBS
SEE ANCHOR PATTERN
DETAIL S#
VARIES ?
2-3' \ i //
EXISTING BANK
2
3'
I -1 i I-i -III ! i l-III-1 L !;i- -
CL I RIP-RAP W/ FILTER FABRIC
WRAP FABRIC III-III-i 1-1 LINER AT ALL ROCK/SOIL INTERFACES:
AROUND BASE I-I . i-III-1 SLOPE AT 2: t
. SHAPE SLOPE TO DESIGN GRADE, REMOVING ALL CLODS,
CLUMPS. ROCKS, AND OTHER MATERIAL OF SIGNIFICANT
SIZE TO PREVENT THE MATTING FROM LYING FLUSH TO
THE SURFACE CONTOUR.
2. CONTRACTOR SHALL USE WOODEN STAKES TO SECURE FABRIC
AS RECOMMENDED BY FABRIC MANUFACTURER.
Figure 6
Riprap Toe with
Vegetated Bank
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: Woolpert LLP, 1998.

PLL%,^ -; RIPARIAN TREES -
AT O.C. AS NEEDED
- PLANT UPPER 2/3 OF BANK
WITH GRASS MIX AND LIVE J7??
STAKES SAPLINGS ON UPPER
EXISTING TOP OF BANK \ ( 2/3 OF BANK
EXISTING BANK
PLANT LOWER 1/3
OF BANK WITH AQUATIC /' - ------ --- -- ----
PLANT MIX 6'
BIOLOG STAKED AND \\
PLANTED WITH AQUATIC
D STAKES
EXISTING TOE SPAOCE
D AT 3 O.C.
OF BANK ` (f1p,
?- PROPOSED BANK
(3.5H:1 V)
\-- .NA,TU=': FIBER EROSION CONTROL BLANKET
12 SECUR= WITH DEAD STAKES SPACED IN ACCORDANCE
WITH ','ANUF.ACTORS RECOMMENDATIONS
NOOD STAKES NOTE:
SPACED AT 3 O.C. SEE PLANTING PLAN FOR
12° SPACING/DENSITY REQUIREMENTS
PROPOSED BANK
`
LIVE STAKES/RIPARIAN SHRUBS-,
GRASS MIX
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Jl y L L Ji L W W •L ?v
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----------------------------------------------
E i
XISTING TOE OF BANK = \
BIOLOG
-AQUATIC PLANT MIX
Figure 7
Bioengineered Bank
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: Woolpert LLP. 1998.

PROPOSED TOP OF BANK
PROPOSED BANK
EXISTING TOE
OF BANK
MAIN
CHANNEL
i
i
12" MIN-36" MAX
Figure 8
High Flow Swale
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Source: Woolpert LLP, 1998.
VARIES
PLANT RIPARIAN TREES
10' O.C. AS NEEDED
FLOOD FLOW
CHANNEL
10'-0" WIDE
V
12" MIN RIPRAP-?
D50= 91,
INSTALL CONTINUOUS FILTER FABRIC
UNDER RIPRAP PER MANUFACTORS
RECOMMENDATIONS
i
i
12'-18' TYR
SECTION A-A
n'E .STRUCTURE
INTO BANK 2"
SECTION B-B

EXISTING TOE
PLAN
Figure 9
J-Weir
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Gra hic Scale in Feet
North
0 1000 2000 4000
Source: Woolpert LLP. 1998.

0

n

NOTES: I CLUSTERS ARE COMPRISED OF 3-5 BOULDERS.
2) A MINIMUM OF 3 CLUSTERS SHOULD BE USED PER
FISH ENHANCEMENT STRUCTURE.
3) THE CLUSTERS SHOULD BE TRIANGULAR AND
PLACED W THE DOWNSTREAM HALF OF A LONG
RIFFLE OR GLIDE.
4) EXISTING BOULDERS SHOULD BE USED. IF AVAILABLE.
IF NONE ARE AVAILABLE. USE CLASS II RIP-RAP.
51 CLUSTERS SHOULD BE PLACED AT LEAST 1/3 OF THE
STREAM WIDTH APART

USE EXISTING BOULD RS. IF NOT
AVAILABLE. USE C'S 11 RIP-RAP.
F
LOW
\
J Wi3 I
EXISTING TOE--/
I .

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J
,W
I PIPRAP VO
C
ASS
L
I
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PLAN
FLOW
NORMAL WATER-
SURFACE
CHANNEL SOTTO

/
TYPE A" ROCK i
7i
SECTION A-.A
i
nw smuv
SECTION B-B
Figure 10
W-Weir
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Gra hic Scale in Feet
North
0 1000 2000 4000
Source: Woolpert LLP. 1998.

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ap4?
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Legend Figure 11
ApB2 Applying sandy loam, 2 to 6 percent slopes, eroded Soils Map
ApC2 Applying sandy loam, 6 to 10 percent slopes, eroded
ApD Applying sandy loam, 10 to 15 percent slopes Bl Branch Channel Improvements
g
CeC
CeC2 Cecil sandy loam, 6 to 10 percent slopes
Cecil sandy loam, 6 to 10 percent slopes, eroded City of Raleigh, Wake County,
CeD Cecil sandy loam, 10 to 15 percent slopes North Carolina
Wo Wehadkee and Bibb soils
Graphic Scale in Feet
North
0 200 400 800
Source: WoolpertLLP. 1998.

Q o o aQ
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d 00.
a t7
o?
0 0
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0 0 Q
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Legend
Riparian Woodland
D Upland Woodland
0
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D
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a a
a?
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o ?
Figure 12
Vegetation Map
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
*11111* Graphic Scale in Feet
North MON9
0 200 400 800
Source: Woolpert LLP, 1998.

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o
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LJ ? Q
?QO C31
? ? oQ as a ?
gazdimont R
Q '
?C
C3 C:?
lu?
d 0 D am
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Figure 13
100-Year
Floodplain Map
Big Branch Channel Improvements
City of Raleigh, Wake County,
North Carolina
Graphic Scale in Feet
North 0 200 400 800
1
Source: Woolpert LLP. 1998.

r

CITY OF RALEIGH
APPENDIX
• DENR, Division of Water Quality, SEPA Letter, August 10, 1998
• DENR, Division of Water Quality, Water Quality Certification Letter, July 28, 1998
• U.S. Army Corps of Engineers, Raleigh Field Office Fax, March 1, 1999
• North Carolina Department of Cultural Resources Letter, March 1, 1999
• DENR, Division of Soil and Water Conservation Letter, March 3, 1999
• DENR, Division of Forest Resources Letter, February 26, 1999
• DENR, Division of Water Quality, Water Quality Certification Letter, March 8, 1999
• DENR, Division of Parks and Recreation Letter, March 12, 1999
• DENR, Division of Water Quality, Wetlands Restoration Program Letter, March 22, 1999
• City of Raleigh, Letter from Danny Bowden to Gloria Putnam, March 24, 1999
• DENR, Division of Water Quality, EA Review Memorandum, April 20, 1999
• DENR, Division of Water Quality, EA Review Letter, April 29, 1999
• DENR, Division of Water Quality, EA Review Telecommunication, November 16, 1999
• Tree Planting Plan
• Grass Seed Specification
• Photographs along Big Branch
' Environmental Assessment 12199
WATER QUALITY PLANNING Fax:919-?15-56157

1
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
August 10, 1998
1

MEMORANDUM
To: Warren High
From: Ed Buchner. DWQ SEPA Coordinator
Hug 10 '98 10:10 1-1.021UZ)
091W?A
NCDENR.
Subject: Comments on EA Scoping #Stream Restoration Project
The Division of Water Quality (DWQ) requests that the following topics be discussed in the
EA/EIS document:
A. Identify the streams potentially impacted by the project. The current stream
classifications and use support ratings for these streams should be included. This
information is available from DWQ through the following contacts:
t
572
919
733
5083
ifi
i
.
-
-
, ex
cat
ons -
Liz Kovasekitz - Class
PW,M4-tz - Use Support Ratings - 919-733-5083, ext. 5a S-71
Q
?'"
.v?A1reA Ids ira-
' B . Identify the linear feet of stream channelization/relocations. If the original stream
banks were vegetated, it is requested that the channchzcd/relocated stream banks be

' revegetated.
C . Identify the number of stream crossings.
D. Will permanent spill catch basins be utilized? DWQ requests that these catch basins
be placed at all water supply stream crossings. Identify the responsible patty for
maintenance.
E. Identify the stormwater controls (permanent and temporary) that will be used
F. Please ensure that sediment and erosion control measures are not placed in
' wetlands.
G . Wetland Impacts
' i) Identify the federal manual used for identifying and delineating jurisdictional
wetlands.
iii) Have wetlands been avoided as much as possible?
?
' iii) Have wetland impacts been minimized
iv) Mitigation measures to compensate for habitat losses.
V) Wetland impacts by plant communities affected.

' P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
WH(ER QUHLiIY r'LHNN1N6 f aX?yly-rl?-?b?r HU9 W 'J6 1U;14 r.UJ/UJ

' Quality of wetlands impacted.
vi) vii) Total wetland impacts.
' viii) List the 401 General Certification numbers requested from DWQ.
H. Borrow/waste areas should avoid wetlands to the maximum extent practicable.
Prior to the approval of any borrow/waste site in a wetland, the contractor shall
obtain a 401 Certification from DWQ.
I. Please provide a conceptual wetland mitigation plan to help the environmental
review. The mitigation plan may state the following:
1. Compensatory mitigation will be considered only after wetland impacts have
' been avoided and minimized to the maximum extent possible.
2. On-site, in-kind mitigation is the preferred method of mitigation. In-kind
mitigation within the same watershed is preferred over out-of-kind mitigation.
' 3. Mitigation should be in the following order: restoration, creation, enhancement,
and lastly preservation.
J. The EA should discuss in detail project alternatives.
DWQ is also concerned about secondary and cumulative impacts that may be caused by
construction, development or any significant change made to the environment. For
' example, a project may cause or increase stormwater runoff or induce further development
of an area. The EA/EIS should give particular attention to secondary and cumulative
impacts.
Written concun•nce of 401 Water Quality Certification may be required for this project.
Applications requesting coverage under our General Certification 14 or General Permit 31
(with wetland impact) will require written concurrence. Please be aware that 401
Certification may be denied if wetland or water impacts have not been avoided and
minimized to the maximum extent practicable.
' etb:1# , Scoping

1
P

State of North Carolina
' Depirtment of Environment
and Natural Resources
' Division of Water Quality
James B. Hunt, Jr,, Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
duly 2J, 1998
Mr. Danny Bowden
Stormwater Engineering Manager
City of Raleigh
W9
222 1
t Hargett Street
Raleigh, NC 27602
Dear Mr. Bowden:
Re: 401 Water Quality Certification
Big Branch channel
' ak County
DWQ # 980591
On June 25. 1998, you wrote to the Division of Water Quality (DWQ) requesting a 401 Water Quality
Certification for your project to impact about 800 linear feet of stroatn for stream ehannolization work on
Big Branch in Raleigh in Wake County. We believe that this project will require review by the State
Clearinghouse under the State Environmental Policy Act (SEPA). DWQ cannot issue the 401 Certification
until the project has received a Finding of No Significant Impact (FONSI) or Record of Decision (ROD)
from the State Clearinghouse in accordance with NCAC 15A; 01C.0402. Therefore. I must hereby place
this project on indefinite hold until the State Clearinghouse has issued the PONSI or ROD. However we
will continue to review the project and make you aware of any concerns. We recommend that you notify us
that the NEPA/SEPA process is complete so we can reactivate the project. In addition, by copy of this
latter, I am also notifying the U.S. Autry Corps of Engineers that this project should be placed an hold.
Please contact me at 919-733-1766 for information regarding the SEPA application process.

1
NC ENP*
NORTH CAROLINA DLPARTMENT OR
ENVIRONMENT AND NATURAL RE$oui%cEB
If you believe that this decision is in error, please call me at 919-733-1786 to discuss the matter.
ttoo1n Dorny
Quality Comfica n Program
cc: Raleigh DWQ Regional Office
U-S. Army Corps of Engineers Wilmington District Office
Central Files
Raleigh Field Office US Army Corps of Engineers RECEIVED
AUG OG 1998
CENTRAL ENGINEERING
RECEIVED
AUG 0 7 1998
WOOLPERT LLP
98059I .noeert
Wetlands/401 Unit 4481 Reedy Creek Road Raleigh, North Carolina 27607
Telephone [phone] FAX it 733.99S9
An Equal OpporWnlty Afnrmetive Action 8inployer S0% recycled/10% post consumer poper
MAR.01'1999 13:38

#0148 P.001l003
U.S. Army Corps of Engineers
Raleigh Regulatory Field Offlce
6508 Falls of the Neuse Road
Suite 120
Raleigh, North Carolina 27615
Phone: [phone]
Fax: [phone]
FAX COYER SHEET
Date: A e I '532
5
Message to: zwta
x'37 ?i{,{ o7H?
From: f oDD u C?cy? Q
Lt.l
rn
Total number of pages including cover page: 3 LLJ o j
If all pages are not received, please call $76-8441. Q_
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Remarks:
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P beginning immediately north of the Hardimont Road crossing, in Raleigh, Wake County, NC.
MAR.01'1999 13:38
60148 P.002/003
CC) Q ?? ?...J
U.S. ARMY CORPS OF ENGINEERS
Wilmington District
Action ID: 199821013 County: Wake
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property
Owner Citv of Raleitzh
Attn: Stewart J. Sykes
Address P.O. Box 590
Raleigh., 27602
Telephone Number 919-890-3030
Authorized
Agent
Address
Telephone Number
Size and Location of Pr0per1X (waterhody, Highway name/number,?town. etc.):
The casement is approximately 1900 feet in length and 2.5 acres in. size and is located along Big Branch,
Description of Activity:
Work authorized by the permit includes mechanized landcleari.ng and excavation by small rubber-tired
backhoes and laborers, and the placement of fill (including soil backfill, ri.prap, fiber erosion control
bIanl(ets, etc.) associated with bank stabilization. activities along Big Branch. Impacts will be limited to
' approximately 1.2 acres of waters of the U.S. (to include both sides of 1900 feet of channel).
Applicable Law: X Section 404 (Clean Water Act, 33 USC 1344) only.
Section 10 (River and Harbor Act of 1899) only.
' Authorization: Regional General Permit Number
13 Nationwide Permit Number
Any violation of the conditions of the Regional General or. Nationwide Permit referenced above may
subject the permittee to a stop work order, a restoration order, and/or appropriate legal action.
This Department of the Army Regional General Permit or Nationwide Permit verification does not
relieve the permittee of the responsibility to obtain any other required Federal, State, or local
approvals/permits. The permittee may need to contact appropriate State and local agencies before
beginning work. - If you have any questions regarding the Corps of Engineers regulatory program,
' please contact Todd Tuawell at telephone number (919) 876 - 8441 extension 26
Regulatory Project Manager Signature
Date Jul 13 1998 Expiration Date July I3 2000
SURVEY PLATS, FIELD SKETCH, WETLANI) DELINEATION FORM., ETC., MUST ICE ATTACHED
TO THE VELLOW (FILE) COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
CF: City of Raleigh Inspections

1

1

I

1

11

1

MAR.01'1999 13:39 #0143 P.003/003
C Fo-)Y.??
U.S. ARMY CORPS OF ENGINEERS
Wilmington District
Action ID: 199820476 County: Wake
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property
Owner City of Raleigh
Attn: Danny Bowden.
Address P.O. Box 590
Raleigh. 27602
Telephone Number 919-890-3030
Authorized
Agent
Address
Telephone Number
Size and Location of Property (waterbody, Highway name/number.-town, etc.):
The site is located approximately 100 feet west of the intersection of Hardimont Road and Quail Hollow
Drive in, Raleigh, Wake County, NC. The culvert to be improved is crossing Big Branch in the Neuse
River Basin.
Description of Activity:
Mechanized iandcl.eari.n.g, excavation, filling, and the placement of pipes and r.prap associated with the
construction of Big Branch / Hardimont Road culvert. lrnpacts associated with the project include 0.03
acre of waters of the U.S., including wetlands. Two 7 foot by 8 foot reinforced concrete box culverts will-
be added to the existing culverts, and the channel immediately upstrearn and downstream of the crossing
will be realigned and riprap will be placed as required by the additional culverts.
Applicable Law: X Section 404 (Clean Water Act, 33 USC 1344) only.
Section 10 (River and Harbor Act of 1899) only.
Authorisation: Regional General Permit Number
14 Nationwide Permit Number
Any violation of the conditions of the Regional General or Nationwide Permit referenced above may
subject the perm.ittec to a stop work order, a restoration order, and/or appropriate legal action.
This Department of the Army Regional General Permit or Nationwide Permit verification does not
relieve the permittee of the responsibility to obtain any other required Federal, State, or local
approvals/permi.ts. The perm.ittee may need to contact appropriate State and local agencies before
beginning work. If you have any questions regarding the Corps of Engineers regulatory program,
please contact Todd Tugwell at telephone number (919) 876 - 8441 extension 26
Regulatory Project Manager Signa
Date J June, 1998 Expiration Date 1 June. 2000
SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACHED
TO THE YELLOW (FILE) COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
CF: City of Raleigh Inspections

u

7

?ptwvom?
North Carolina Department of Cultural Resources
James B. Hunt Jr., Governor
Betty Ray McCain, Secretary
March 1, 1999
David C. Dister
Environmental Scientist
Woolpert LLP
409 East Monument Avenue
Dayton OH 45402-1261
Re: Improvements to Big Branch, Raleigh,
Wake County, ER 99-7095
Dear Mr. Dister:
Division of Archives and History
Jeffrey J. Crow, Director
Thank you for your letter of February 18, 1999, concerning the above project.
We have conducted a review of the project and are aware of no properties of architectural,
historic, or archaeological significance which would be affected by the project. Therefore,
we have no comment on the project as currently proposed.
The above comments are made pursuant to Section 106 of the National Historic Preservation
Act and the Advisory Council on Historic Preservation's Regulations for Compliance with
Section 106 codified at 36 CFR Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the
above comment, please contact Renee Gledhill-Earley, environmental review coordinator, at
919/733-4763.
Sincerely,
ow?
David Brook
Deputy State Historic Preservation Officer
DB:slw
RECEIVED
MAR 0 5 1999

WOOLPERT LLP
109 East Jones Street • Raleigh, North Carolina 27601-2807

NCDENR
JAMES B. HUNTJR.
GOVERNOR
l
' WAYNE MCDEVITr
SECRETARY
G. DEWEY BOTTS
DIRECTOR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF SOIL AND WATER CONSERVATION
MEMORANDUM:
TO: Melba McGee
FROM: David Harrison _;eorw1
March 3, 1999
SUBJECT: Improvements to Big Branch, Raleigh, Wake County, NC
The City of Raleigh proposes to stabilize a 2,300 foot length of Big
Branch from Albans Drive to About 550 feet south of Compton Road. Works of
improvement include replacing the culvert at Hardmont Road, selective removal
of trees and stabilization with riprap and vegetation. The Environmental
Assessment is being prepared by Woolpert LLP.
Stream bank stabilization within a city will have no impacts to Prime and
Important Farmland.
cc: David C. Dister
RECEIVED
MAR 0 8 1999
WOOLPEPT LLP
SOIL & WATER
P.O. BOX 27687, RALEIGH. NORTH CAROLINA 2761 1 -7687 ?
PHONE [phone] FAX [phone] CON?S,EERV??ATIIOONNt
AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - SO,o RECYCLED/1056 POST-CONSUMER PAPER N

NCDENR
' JAMES B. HUNT JR.
GOVERNOR
David C. Dister
Woolpert LLP
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF FOREST RESOURCES
2411 Old US 70 West
Clayton, NC 27520
February 26, 1999
409 East Monument Ave.
' WAYNE MCDEVtTT Dayton, Ohio 45402-1261
SECRETARY
Dear Mr. Dister:
STANFORD M. ADAMS The North Carolina Division of Forest Resources has reviewed the scoping letter for the
DIRECTOR proposed Big Branch stream improvement project in Raleigh NC. Our comments
concerning impacts to forest resources are listed below.
1. The proposed project is located in a densely populated urban residential community.
As such the riparian buffer is fragmented and of little timber value. It does serve as
an important buffer for a tributary of the nutrient sensitive Neuse River.

' 2. We support the concept of the stream improvement project and encourage the
establishment of bottomland hardwoods along its banks as part of the project
particularly in those areas cleared to provide access for heavy equipment.
3. Tree species selected for planting should be native to NC and grown from seed
suitable for NC. Ideally seedlings should be grown from a seed source within eastern
NC.
'
We appreciate the opportunity to comment on the project and look forward to further
correspondence. I can be contacted at 919-553-6178 if you have any questions.

Sincerely,
r
Bill Pickens
Staff Forester-Environmental Documentation
CC Warren Boyette R E C E I V E D
1 Melba McGee
MAR 0 2 1999
r WOOLPERT LLP
P.O. BOX 29581, RALEIGH, NC 27626-058e'vi-1001bi
PHONE [phone] FAX [phone] AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - SO% RECYCLED/10% POST-CONSUMER PAPER
State of North Carolina
Department of Environment 00
and Natural Resources 46
Division of Water Quality !if 2
James B. Hunt, Jr., Governor NCDENR
Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 8, 1999
David Dister
Woolpert, LLP
409 East Monument Ave.
Dayton, Ohio 45402-1261
SUBJECT: BIG BRANCH CHANNEL IMPROVMENETS
Raleigh, North Carolina
Dear Mr. Dister:
In response to your February 18, 1999 letter requesting our input regarding this project
we offer the following:
' 1) Based on the supporting documentation, it appears that the channel in question is not ditched
or channelized but is eroding. Your proposal mainly indicates various instream, bio-
engineered measures to slow and/or prevent stream bank erosion. As the stream has typical
' stream geometry for the area, and therefore no restoration of the stream channel itself is
needed (e.g., restoring sinuosity to a ditched or channelized stream) we believe that your
project is not stream restoration but rather is better defined as "stream bank stabilization".
' 2) This project is occurring in the Neuse Basin. There are currently regulations that require the
protection of 50' of vegetative buffer on both sides of intermittent and perennial streams (as
measured from top of bank). Your project as planned will require a variance from the Neuse
River Buffer Rules since your project is not stream restoration (which is exempt from the
rules). This variance can only be granted by the Environmental Management Commission
(EMC) and to this end you must fill out the enclosed variance request form.
1 3) Please include photography documenting the range and magnitude of streambank erosion
along the proposed enhancement reach. These photos should serve to demonstrate the need
for the project (i.e., document actively eroding streambanks).
If you have any questions regarding this matter please feel free to call Mr. Eric Fleek or myself
' at [phone].
)ncerely,
Dorney ?j EC E P,
V E D
r Quality Certification Program MAR 16 1999
Cc: Ron Ferrel, WRP 1r r? J_
Danny Smith. RRO, DWQ v 1/ V I-'? i\ L L P
' Wetlands/401 Unit 4401 Reedy Creek Road Raleigh, North Carolina 27607
Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post consumer paper
7 !
AM
%
I.NCDENR.
I JAMES B. HUNTJR.
GOVERNOR xa
VAAYNE MCDEVITT
' SECRETARY
DR. PHILIP K. McKNELLY
DIRECTOR: -
r
j
,r
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF PARKS AND RECREATION
March 12, 1999
David C. Dister
Woolpert LLP
409 East Monument Avenue
Dayton, Ohio 45402-1261
Re: Stream Modification, Big Branch, Raleigh
Dear Mr. Dister
The Division has reviewed the proposed project for potential impacts to State Parks
and Recreation Areas, Wild and Scenic Rivers, Dedicated State Nature Preserves,
Registered Natural Heritage Areas, and Priority Natural Heritage Areas. No such sites
are likely to be affected. According to the Natural Heritage Program database, no
federal listed species of plants or animals have been recorded from the vicinity of the
project site. There is, however, a record for star-nose mole (Condylura crlstata), state
listed as Special Concern, from along Big Branch. This species is restricted to
bottomland forests and is likely to be affected by the proposed project.
Thank you for the opportunity to comment on this project.
Sincerely,
Stephen P. Hall
Environmental Review Specialist/Invertebrate Zoologist
/sph
P FE C E D
f-1AR 19 1999
1 nT LLP
P.O. Box 27687, RALEIGH NC 2761 1-7687 PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST-CONSUMER PAPER
' State of North Carolina
Department of Environment
' and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
' David C. Dister
Woolpert LLP
409 East Monument Avenue
Dayton. Ohio 45402-1261
I March 22, 1999
160
DEN R
' Dear Mr. Dister,
The scoping letter submitted for the proposed improvements to Big Branch in Raleigh,
North Carolina has been reviewed by the Division of Water Quality's Wetlands Restoration
Program (WRP). The WRP has no comments to offer at this time.
r

Sincerely,
Gloria F. Putnam
DWQ SEPA Coordinator
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper

U..f/Z4/VV 11 -•JI .rAA Vol 4UI U140

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HUULrGAl LLr
eqy Of q?$leigh
9yorth Carolina
March 24, 1999
LijUUL
Ms. Gloria Putman
NCDENR
Division of Water Quality
Planning Branch
PO Box 29535
Raleigh, NC 27626-0535
Dear Ms. Pumam: .
a
Enclosed are two copies of the environmental assessment for the Big Branch Stream
improvements for your completeness review. The Raleigh City Council approved this
project. We have previously submitted preconstruction notifications to the Corps of
Engineers (Todd Tugwell) and the Division of Water Quality group (John Domey) for
the 404 permit and the 401 water quality certification,
Please feel free to call me at 890-3030 should you have questions or need additional
information. Thank you in advance for. your assistance with this matter.
cerely,
C?
Danny Bowden, PE
Stormwater Engineering Manager
Cc Mr. David C. Dister
Woolpert, LLP
409 East Monument Avenue
Dayton, Ohio 45402-1261
City Engineer
Project File
.h=

State of North Carolina
Department of Environment APP 26
and Natural Resources • WATER Division of Water Quality PLANNING RRP"
James B. Hunt, Jr., Governor NC ENR
' Wayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF
A. Preston Howard, Jr., P.E., Director ENVIRONMENT AND NATURAL RESOURCES
F

April 20, 1999
' MEMORANDUM
TO: Gloria Putnam

THROUGH: John Dorney
FROM: Eric Fleek
SUBJECT: Big Branch Channel Improvements (DWQ# 12355)
' Based on a review of the EA, the following comments and recommendations for
inclusion in the FONSI are offered:

1. Under 2.4 (Page 3) it is stated that woven coir netting vegetated with "grass or
"
shrubs
will be installed above the riprapped bank toe. Figure 6 notes that the coir
mat is to be planted with "Streamed and Banker's Dwarf Willows" (Salix pururea,
and S. cottetti). These Salix species are not native to NC (Radford 1968). Please
remove them from the planting list and substitute them with native NC species. In
addition, please clarify the language. Will "grass or shrubs" be planted in the colr
' material (as noted on Page 3) or will Salix also be planted (as noted in Figure 6)?
2. Figure 4 seems to depict two reaches on the east bank receiving bioengineering. The
' west bank is depicted as receiving bioengineering in three reaches. Is all the distance
between areas receiving the riprap toe with vegetated bank treatment to be
bioengineered, or just a small portion of the reach? Please provide data regarding the
' following: 1) Length of bank to be fully riprapped, 2) Length of bank in which only
the toe is to be riprapped and vegetated with coin matting, 3) Length of bank
bioengineered, 4) Estimated length of bank revegetated with trees (including those
areas where existing trees are to be removed for improved flow or bank integrity
reasons)
.
' Wetlands/401 Unit 4401 Reedy Creek Road Raleigh, North Carolina 27607
Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post consumer paper

' 3. As noted in NCDWQ's March 8, 1999 letter-this project will likely require a variance
from the Neuse Buffer Rules. This variance can only be granted from the EMC. If not
' already completed, the enclosed form should be filled out and sent to the appropriate
address to schedule a hearing before the EMC.
' If there are any further questions regarding this matter please feel free to contact Mr. Eric
Fleek at [phone] or at [e-mail]

fl
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U-4/3U/k!! la:14 rem Vif 401 U140
WATER QUALITY PL"ING Fax=919-715-5637
State of North Carolina
' Department of Environment
and Natural Resources
Division of Water Quality
' James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director

11UU1_r ZP.1 LLl
'+ I.IIAl\LV 11L +_.j VVJ
Apr 30 '99 1008 P. 02/02
NCDENR
EmviRONMEPIT AND N^TuRAL REsousr- S
April 29, 1999

David C. Dister
' Woolpert LLP
409 East Monument Avenue
Dayton, Ohio 45442-1261

Dear Mr. Dister,
' The Division of Water Quality (Division) has completed its review of the April
1999 Environmental Assessment (EA) for the Big Branch Stream Improvements project
located in Raleigh, North Carolina. The attached comments received from Eric Fleek of
' the Wetlauds Group need to be addressed before the EA can proceed to the next step of
review. Note that only the comments numbered one and two need to be addressed at this
time.
With respect to Mr. Fleck's third comment, it is recognized that your EA
identifies, on page 10, the need for a variance from the Environmental Management
Comunission (EMC) from the Neuse Buffer Rules in order to implement the preferred
- - alternative. In order for the EMC to consider this variance, the EA review of this
proposal will have to be concluded, and a Finding of No Significant Impact will need to
' be reached. Therefore, no additional information regarding the variance needs to be
included in the EA. For your reference, I am forwarding a copy of the FMC's 1999
meeting schedule.
be
d
t
h
t
h
EA
'
o
nee
s
cover s
ee
s comments, t
e
In addition to addressing Mr. Fleck
modified to include Division contact information. Enclosed please find an example cover
' sheet with this information.
When a response to the Division's comments have been addressed to our
satisfaction, and the EA, is revised accordingly, eight copies of the document should be
PLO, Box 29635, Raleigh, North Carolina 27626-0635 Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer 50% recyaled1l0% post consurner paper

II
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U4/30/99 15:1.5 tAl 937 4bl UI-IJ !iuuLrnxl LLr -+ k aAALUllc CUU4
WATER QURLITY PLANNING Fax'919-715-5637 Apr 30 '99 1004 P.03/05

forwarded to me for review at the Departmental level. Please contact Mr. Fleck directly
to resolve his concerns, and copy me on any written correspondence. Note that I will also
need written verification for my records that Nft. Fleek is satisfied with your response to
his concerns. If possible, this letter should also be included in the EA.
For your planning efforts, be aware that that there are two more reviews which
need to be completed. First, there will be the Deparnnental review (three weeks) and
subsequently, the State Clearinghouse (SCH) review (30 calendar days).
Please contact me at [phone], ext. 567 if you have any questions,
Sincerely,
Gloria F. Putnam
Environmental Specialist
Cc: Eric Fleck, Wetlands Group
i
i
Telephone Record
WOOLPERT
Date of Call: November 16,1999
Order Number: 55263.05.074
Submitted By: Warren C. High
Copies To: Flint Holbrook
Danny Bowden
EA File
Subject: Response to co
Remarks:
Phone Number: [phone]
Conversation With: Eric Reek
Company Name: Dept. of Environment
and Natural Resources
Project: Big Branch Channel
Improvements
(DWQ#12355)
mments dated April 20, 1999
I received a call from Eric Fleek. He had reviewed our response letter dated June 3, 1999
along with revised drawings and stated that he was satisfied with the project. He further
stated that we should resubmit the Environmental Assessment and submit the Neuse River
Variance Request Form.
WOOLPERT LLP
4141 Rosslyn Drive • Cincinnati, Ohio 45209-1183
513.272.8300 - Fax [phone] • www.woolpert.com

t Tree Planting Plan: Proposed Channel Improvements on Big Branch from Hardimont
Road to Tributary C
Trees cleared from the overbank areas of the project site will be replaced at a ratio of three re-planted
trees to every one tree removed during construction. The following table summarizes the list of
species and minimum size requirements for this project:

I?
1?

F

D
u

Trees
Scientific Name Common Name Type/Size
Quercus phellos Willow Oak 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Tilia americana American Linden (Basswood) 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Platanus occidentalis American Sycamore 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Quercus lyrata Overcup Oak 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Quercus michanxii Swamp Chestnut 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Nyssa sylvatica Sour Gum / Blackgum 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Liriodendron tulipifera Tulip Tree 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Acer rubrum Red Maple 2 gallon container, minimum 3-ft.
tall, 10-ft. centers
Shrubs
Scientific Name Common Name Type/Size
Alnus serrulata Tag Alder 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Corpus amonum Silky Dogwood 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Corpus Stolonifera Red-Osier Dogwood 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Cephalanthus occidentalis Buttonbush 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Itea virginica Virginia Willow 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Sambucus canadensis Elderberry 1 gallon container, minimum 24-in.
tall above roots, 3-ft. centers
Stakes
Scientific Name Common Name Type/Size
Salix exigua Sandbar Willow 2-ft. centers
Salix nigra Black Willow 2-ft. centers

11
L
Grass Seed Specification: Proposed Channel Improvements on Big Branch from
Hardimont Road to Tributary C

7
Fl

1?

Grasses
Scientific Name Common Name Quantities
Cinna arundinacea Wood Reed 6 pounds per acre
Elymus virginicus Virginia Rye 12 pounds per acre
Sorghastrum nutans Indian Grass 10 pounds per acre
Festuca rubra sp. Creeping Red Fescue 20 pounds per acre
Panicum virgatum Prairie Smith Grass 2 pounds per acre

1

L

1
Photo 1: View downstream of bank erosion behind houses bordering Hardimont Road

I
11,

1

P,

Photo 2: Upstream of Photo 1 and looking upstream at tree obstruction in channel

1

5

I Photo 3: Bank erosion at a bend further upstream of Photo 2

i

7

C
r.

L

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Danny Bowden
Stormwater Engineering
City of Raleigh
PO Box 590
Raleigh NC 27602
Dear Mr. Bowden:
Big Branch Stabilization Project
WQC Project # 980591
Wake County
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
October 22, 1999
On June 25, 1998 you requested a 401 Water Quality Certification from the Division
of Water Quality for your project located near Big Branch in Wake County. We wrote
you on July 28, 1998 to place the project on hold until an Environmental Assessment was
done to satisfy the State Environmental Policy Act (SEPA). We wrote to you on April
29, 1999 discussing concerns that we have regarding the Environmental Assessment for
the Big Branch stream Improvements project and placing it on hold until those concerns
are addressed. As of today, we have not received a response to our earlier letter. Unless
we receive a written response from you by Novemberl5, 1998, we will consider that you
have withdrawn this application and are not interested in pursuing the project at this time.
Please call me at 919-733-9646 if you have any questions or would like to discuss
this matter.
V ''
ey
ater Quality Certific ion Program
cc: Raleigh DWQ Regional Office
Central Files
File Copy
Raleigh Field Office Army Corps of Engineers
980591.clr
Division of Water Quality • Non-Discharge Branch
1621 Mail Service Center Raleigh, NC 27699-1621 • Telephone [phone] • FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
1A ORANDUI(M?
TO. orney
No Discharge Branch
Regional Contact: ,
WQ Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Ciit of Raleigh - Bi Branch Stabilization
Project Number 98 0591
Recvd From APP 0
Date 7/1/98 Recvd By Region
Received
Project Type stream stabilization
Certificates
Permit Wetland
Type,. Type
18
County Wake
County2'
Region Raleigh
Stream
Class Acres Feet
Wetland Wetland' Stream Basin Req. Req.
Impact Score Index Prim. Supp.
5y O N ?- 27-34-11 C_ NSW 0 l?102
r--_ ?-- Q Y O N F I i t
Mltig n Wetland
MtigatianType Type Acres Feet

is Mitigation required? O Y ON
Did you request more info? O Y N
is Wetland Rating Sheet Attached? O Y P(N
Have Project Changes/Conditions Been Discussed With Applicant? O Y *
Recommendation: 0 Issue Issue/Coed O Deny
Comments: 22?
Page Number 1
n- -.innol r)ffir'P.
City of Raleigh Big Branch Stabilization Project:
On August 13, 1998 I conducted a site visit at the proposed project with the City of Raleigh and
their consultants.
Items of concern:
- A SEPA document may be appropriate. Please note: the City proposes to increase the capacity
of the culvert crossing at Hardmont Street (by 100%), in order to accommodate high flow events.
Additionally, debris and other flow encumbrances are also being proposed to be removed. That
is, they plan on pulling back the stream bank to a 3:1 slope and stabilizing it with bio-
engineering techniques.
-Require the City to demonstrate how canopy cover will be reestablished.
-While this stream is located in an urban setting. Having said that, is clear that the riparian zone
provides function. Reestablishment of riparian plant community and minimal activity to adjacent
soils and plant community is recommended (and perhaps required as per NBR).
-Avoid impacts to stream banks and riparian community, where banks that are stable and their
alteration would achieve no or minimal enhancement to the flow.
Please call me if you have any questions/.
/ds
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Iffl?WAA
'9461 0
low
AMIIII
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
July 28, 1998
Mr. Danny Bowden
Stormwater Engineering Manager
City of Raleigh
222 West Hargett Street
Raleigh, NC 27602
Dear Mr. Bowden:
Re: 401 Water Quality Certification
Big Branch channel
Wake County
DWQ # 980591
On June 25, 1998, you wrote to the Division of Water Quality (DWQ) requesting a 401 Water Quality
Certification for your project to impact about 800 linear feet of stream for stream channelization work on
Big Branch in Raleigh in Wake County. We believe that this project will require review by the State
Clearinghouse under the State Environmental Policy Act (SEPA). DWQ cannot issue the 401 Certification
until the project has received a Finding of No Significant Impact (FONSI) or Record of Decision (ROD)
from the State Clearinghouse in accordance with NCAC 15A: 01C .0402. Therefore, I must hereby place
this project on indefinite hold until the State Clearinghouse has issued the FONSI or ROD. However we
will continue to review the project and make you aware of any concerns. We recommend that you notify us
that the NEPA/SEPA process is complete so we can reactivate the project. In addition, by copy of this
letter, I am also notifying the U.S. Army Corps of Engineers that this project should be placed on hold.
Please contact me at 919-733-1786 for information regarding the SEPA application process.
If you believe that this decision is in error, please call me at 919-733-1786 to discuss the matter.
i cerel
in J n R. Dorney
ter Quality Cert Program
cc: Raleigh DWQ Regional Office
U.S. Army Corps of Engineers Wilmington District Office
Central Files
Raleigh Field Office US Army Corps of Engineers
980591.nocert
Wetlands/401 Unit 4401 Reedy Creek Road Raleigh, North Carolina 27607
Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post consumer paper

PRE-DISCHARGE NOTIFICATION PCN
T0: National Marine Fisheries Service
FAX [phone]
Divers Island, NC
US Fish Wildlife SBXvEA [phone]
Ralelghr NC
State Historic ppaservation Office
Raleigh, NC yAX ?1)3
NC Division of Water Quality
Raleigh, NC FAx (9is)-M-9959
NC Wildlife Resources Copmmis9 9)o s_ss3s
Creedmoor, NC
1. ACTION ID: 1990201013
2. APPLICANT: city of Raleigh/-Big Branch Channel.
3. DATE OF TRANSMITTAL: 7/6/98
98059,1
4. RESPONSE DFADLINE(5 days from transmittal): 7110/98
5. COMMENT DEADLINE(10 days from response deadline): 7/20/98
6. SEND COMMENTS TO. RALEIGH REGULATORY FIELD OVFICE
RALEIGH,
ATTN : Todd Tu9WG11
FAX [phone]
We are also forwarding the attached RCN to the Fish and Wildlife
Service and the National M1naffectetveanyehrea tefor nedroriew and
comment concerning any likely es or their critical habitat within those
endangered speci
,gencies, jurisdiction.
i0'd 02:91 8661'T0'L0 (%8oiuin938 H8131UN W08J
9 895 91 -
June 25, 1998
City Of 6Raleigh
,North Caarolina e
Attention: Mr. John Dorney
Wetlands-401 Unit
Division of Water Quality
NCDENR
4401 Reedy Creek Road
Raleigh, NC 27607
Reference: City of Raleigh
Big Branch Channel Stabilization
Dear Mr. Dorney:
Please find enclosed the following information:
-Seven copies of the pre-construction notification application
for nationwide permits
-Seven copies of the plans and vicinity map
The proposed plans are consistent with the general conditions
required under nationwide permit 18.
The enclosed package is also being sent to Mr. Todd Tugwell with
the US Army Corps of Engineers.
Please feel free to give me a call at 890-3030 if you have
questions. My fax number is 890-3832 if you prefer to fax your
findings to me. Thank you in advance for your assistance.
Sincerely,
Danny Bowden, PE
Stormwater Engineering Manager
c Mi.,. Todd Tugwell - USACOE - Regulatory Branch

OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602
Recycled Paper
9805 91
City Of 6Raleigh
5Vorth (3arohna
June 25, 1998
Attention: Mr. Todd Tugwell
Raleigh Regulatory Field Office
US Army Corps of Engineers
6508 Falls of the Neuse Road
Raleigh, NC 27615
Reference: City of Raleigh
Big Branch Channel Stabilization
Dear Mr. Tugwell:
Please find enclosed the following information:
?S
C 119%
-One original and one copy of the pre-construction notification
application for nationwide permits
-Two copies of the plans and vicinity map
The proposed plans are consistent with the general conditions
required under nationwide permit 18.
The enclosed package is also being sent to Mr. John Dorney with
the North Carolina Division of Water Quality.
Please feel free to give me a call at 890-3030 if you have
questions. My fax number is 890-3832 if you prefer to fax your
findings to me. Thank you in advance for your assistance.
Sincerely,
?del
Danny Bowden, PE
Stormwater Engineering Manager
cc Mr. John Dorney - NCDENR - Division of Water Quality
Project File
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602
Recycled Paper
980591
June 25, 1998
City Of 6Paleigh
5Vorth G3arolina
Attention: Mr. David Brook
State Historic Preservation Office
NC Division of Archives and History
109 East Jones Street
Raleigh, NC 27601
Dear Mr. Brook:
? ,
T ?M f
JUG - 11988 ?
I am submitting a copy of the 404/401 permit for a channel
improvement project at Converse Drive and Quail Hollow Drive to
you to ascertain if any historic properties are present in the
permit area. We are also submitting the permit to the Corp of
Engineers as well as the Division of Water Quality.
Please feel free to give me a call at 890-3030 if you have
questions. My fax number is 890-3832 if you prefer to fax your
findings to me. Thank you in advance for your assistance.
Sincerely,
Danny Bowden, PE
Stormwater Engineering Manager
cc Mr. Todd Tugwell - US Army Corps of Engineers
Mr. John Dorney - NCDENR - Division of Water Quality
Project File
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602
0--1-4 Donor
980591
June 25, 1998
City Of 6Raleigh
.North (3arohna
Attention: Mr. John Hefner
US Fish and Wildlife Service
Raleigh Field Office
PO Box 33726
Raleigh, NC 27636-3726
Dear Mr. Hefner:
JUC ? l l
JR
1111 --.al-
I am submitting a copy of the 404/401 permit for a channel
improvement project at Converse Drive and Quail Hollow Drive to
you to ascertain if any federally listed or proposed for listing
endangered or threatened species or critical habitat are present
in the permit area. We are also submitting the permit to the
Corp of Engineers as well as the Division of Water Quality.
Please feel free to give me a call
questions. My fax number is 890-3832
findings to me. Thank you in advance
Sincerely,
I
Danny Bowden, PE
Stormwater Engineering Manager
at 890-3030 if- you have
if you prefer to fax your
for your assistance.
cc Mr. Todd Tugwell - US Army Corps of Engineers
Mr. John Dorney - NCDENR - Division of Water Quality
Project File
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602

DEM ID cam.
NATIQ,iiDE PERMIT REQUESTED
CORPS ACTION ID:
(PROVIDE NATIONWIDE PERMIT #):
PRE. CJ148TRUCTION
r ?.
NOTIFICATION AP
FOR NATIONWIDE PERMITS THAT REQUIRE:
1) NOTIFICATION TO THE CORPS OF ENGINEERS
2) APPLICATION FOR SECTION 401 CERTIFICATION
3) COORDINATION WITH THE NC DIVISION OF COASTAL
SEND THE ORIGINAL AND (1) COPY OF THIS COMPLETED FORM TO THE APPROPRIATE
FIELD OFFICE OF THE CORPS OF ENGINEERS (SEE AGENCY ADDRESSES SHEET). SEVEN
(7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT
(SEE AGENCY ADDRESSES SHEET). PLEASE PRINT.
1. OWNERS NAME:
2. MAILING ADDRESS: IAAE?E l T S-tt_ee_i C70. f?&x. X5E
SUBDIVISION NAME: N
CITY: _ Lr- STATE: LIL ZIP CODE: 0? I or),
PROJECT LOCATION ADDRESS, INCLUDING SUBDIVISION NAME (IF DIFFERENT FROM
MAILING ADDRESS ABOVE) : 3 i(iV C gA
r
3. TELEPHONE NUMBER (HOME) : (WORK) : I h
4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS,
PHONE -NUMBER: 5t SL-w CL?
As
5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC
MAP OR AERIAL PHOTOGRAPHY WITH SCALE):
COUNTY: IAgr- NEAREST TOWN OR CITY:
A
UPS-1 Cc?AN?
1
.. 7 , 7
10a. NUMBER OF ACRES OF WETLANDS--IMPACTED BY THE.PROPOSED PROJECT BY:
FILLING:
EXCAVATION:
FLOODING: OTHER:
DRAINAGE: TOTAL ACRES TO BE IMPACTED:
10b. (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF
RELOCATED, PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION)
LENGTH BEFORE: i? FT AFTER: FT
WIDTH BEFORE (based on normal high water contours): VALES FT
WIDTH AFTER: VALA6LE-' IN f R-----E N1LL. AVLQ5ACCC-_ IO FT
AVERAGE DEPTH BEFORE: ML, WN v C'. FT AFTER: NU Ca"C- FT
(2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY)
OPEN CHANNEL RELOCATION: PLACEMENT OF PIPE IN CHANNEL:
CHANNEL EXCAVATION: CONSTRUCTION OF A DAM/FLOODING:
OTHER: iJAN1C 1Mi'K[?y?A?lydV11 11'
?11N1 µA L- 'Fo1_L SAN IL RIP t2 A IP
11. IF CONSTRUCTION OF A POND IS
WATERSHED DRAINING TO THE POND?
RIPAR?A. N T toN . l M9Q2 NE a
PROPOSED, WHA H SIZE OF THE
N/ A
11cf-)
WHAT IS THE EXPECTED POND SURFACE AREA? . N to
X12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF
MECHANICAL EQUIPMENT TO BE USED (ATTACH PLANS: 8 1/2" X 11" DRAWINGS
ONLY) : '61 6Ei AGINCL-_ ? R4(A1L -AN11.Cfj\-At? Ll?lC 1N-13 &ASL
AQo'kn (LztS MAX GtA
nU tANL 290 CL. = cY - .
cry
CAM6-C) III ?AN? 11 ET?TIV _ YIAt?Tf S 12 P P I DqO 5Y yE -TAll
7a cY ???- : 3 F15r? v? r uz? ?k? N QbN cmN\fi;
13. PURPOSE OF PROPOSED WORK: espy- A, EXISTI -:1
lt\Aft_ 1?-Nv ipftL?E i" 5 'to Pal ;? II?f-F o -?
CMACII`( . QF ,NNT-L To &E
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AQL . /A? P-o X1l?Jl,4-??? 3 AN[) ?1 i>?LA?N C-_FAULAC.4k0"Zi
18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF
PROPOSED ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OR FILL MATERIAL
INTO WETLANDS:
a. WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES
AND PONDS ON THE PROPERTY (FOR NATIONWIDE PERMIT NUMBERS 14, 18, 21, 26,
29, AND 38). ALL STREAMS (INTERMITTENT AND PERMANENT) ON THE PROPERTY
MUST BE SHOWN ON THE MAP. MAP SCALES SHOULD BE 1 INCH EQUALS 50 FEET OR 1
INCH EQUALS 100 FEET OR THEIR EQUIVALENT.
b. IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE
IMPACTED BY PROJECT.
C. IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA
SHEETS RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE.
d. ATTACH A COPY OF THE STORMWATER MANAGEMENT PLANF RF¢UI,RED.
e. WHAT IS LAND USE OF SURROUNDING PROPERTY? I" lCV II
f. IF APPLICABLE, WHAT IS PROPOSED METHOD OF SEWAGE DISPOSAL? ';? o

g. SIGNED AND DATED AGENT AUTHORIZATION LETTER, IF APPLICABLE..
NOTE: WETLANDS OR WATERS OF THE U.S. MAY NOT BE IMPACTED PRIOR TO:
1) ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
2) EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF
ENVIRONMENTAL MANAGEMENT (WATER QUALITY) CERTIFICATION, AND
3) (IN TRE TWENTY COASTAL COASTAL COUNTIES ONLY) , A LETTER FROM THE
NORTH CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED
ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT
PROGRAM.
Z3
'S/AG 'S GNATURE DAT
(AGENT'S SIGNATURE VALID ONLY
IF AUTHORIZATION LETTER FROM
THE OWNER IS PROVIDED (18g.))
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Figure 1
Regional Map
Big Branch Channel Improvements
City of Raleigh
Wake County, North Carolina
I
Figure 2
Source: Raleigh East and Raieigh West, North Carolina 7.5 Minute USGS
Tcpographic Cuacrangle, 1987.
Scale in Feet
0 1000 2;00 4000 North
Vicinity Map
Big Branch Channel Improvements
City of Raleigh,
Wake Countv. North Carolina
Tree Planting Plan: Proposed Channel Improvements on Big Branch from Hardimont
Road to Tributary C
Trees cleared from the overbank areas of the project site will be replaced at a ratio of 3 re-planted
trees to every one tree removed during construction. The following table summarizes the list of
species and minimum size requirements for this project:
Trees
Scientific Name Common Name Type/Size
Quercus phellos Willow Oak 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Tilia americana American Linden (Basswood) 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Platanus occidentalis American Sycamore 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Quercus lyrata Overcup Oak 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Quercus michanxii Swamp Chestnut 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Nyssa sylvatica Sour Gum / Blackgum 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Liriodendron tulipifera Tulip Tree 2 gallon Container, Min. 3 feet
tall, 10 foot centers
Acer rubrum Red Maple 2 gallon Container, Min. Yfeet
tall, 10 foot centers
Shrubs
Scientific Name Common Name Type/Size
Salix Pururea `Streamco' Streamco Willow 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Cornus amonum Silky Dogwood 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Cornus Stolonifera Red-Osier Dogwood 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Lindera benzoine Spice Bush 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Cephalanthus occidentalis Buttonbush 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Salix Cottetti Bankers Dwarf Willow 1 gallon container, minimum
24" tall above roots, 3 foot
centers
Tree Planting Plan: Proposed Channel Improvements on Big Branch from Hardimont
Road to Tributary C (continued)
Stakes
Scientific Name Common Name Type/Size
Salix exigua Sandbar Willow 1 gallon container, 2 foot
centers
Salix nigra Black Willow I gallon container, 2 foot
centers
Revegetation Plan: Proposed Channel Improvements on Big Branch from Hardimont
Road to Tributary C
Grass Mix (to be used on upper third of bioengineered slope and vegetated portion of
combination lining slope):
Aquatic Plant Mix (to be used on the lower third of the bioengineered slope):
Other Grassed Areas:
Grasses
Scientific Name Common Name Quantities
Cinna arundinacea Wood Reed 6 pounds per acre
Elymus virginicus Virginia Rye 12 pounds per acre
Sorghastrum nutans Indian Grass 10 pounds per acre
Festuca rubra sp. Creeping Red Fescue 20 pounds per acre
Panicum virgatum Prairie Smith Grass 2 pounds per acre
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WOOLPERT LLP
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CHANNEL INPROVEMENTS PROJECT NO.
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.' Charlotte, NC 28217-3958
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NOR i:-I CAROLINA DATE 6/10/9
704.525.6284 SCALE NTS
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WOOLPERT PERM!T DRAWINGS SHT. #9
Minutes of Meeting Held at Big Branch, Vicinity of Hardirnont Road, February 4, 1998
Purpose: The meeting was held to bring key personnel together from regulatory agencies, the
design engineer and the City of Raleigh to discuss proposed improvements to the Big Branch
channel in Raleigh, NC. The channel improvements were proposed as part of the Big Branch
Watershed Stormwater Masterplan prepared for the City of Raleigh by Woolpert, LLP in July,
1997.
Attendees:
Anne Lupo City of Raleigh, Stormwater Department
John Dorney NCDENR, DWQ Raleigh Office
Ray Cox NCDENR, DWQ Raleigh Office
Todd Tugwell US Army Corps of Engineers, Raleigh Regulatory Office
Owen Anderson North Carolina Wildlife Resources Commission
Mike Brennan Woolpert, LLP, Charlotte Office
Warren High Woolpert, LLP, Dayton Office
Minutes:
1. Mike Brennan and Warren High began the meeting by describing the watershed, the existing
flooding problems and the modelling and master-planning process used to develop
stormwater management alternatives. Mike discussed specific problems in the area in which
the channel improvements are proposed, detailed other alternatives that were analyzed to
alleviate these problems and described the four alternatives that the City had elected to go
with.
2. John Dorney discussed some nevv developments/requirements that we may not be aware of
New Nuese River Basin regulations were finalized and signed on January 22, 1998. John
will get a copy of these regulations sent to us.
Because the project involves public funds and will require a Corps permit, a state
environmental assessment (SEPA document) will have to be prepared. John told Mike
and Warren to contact Michelle Suverkrube at 733-5083 to get the format for the
document and to answer any questions.
3. A field walk of the site was performed. During this walk, isolated erosion problems and
conveyance problems were noted. The problems Woolpert and the City of Raleigh hope to
address with the proposed improvements can be summarized as follows:
Improve the conveyance capacity of the creek by removing large diameter trees that are
growing in the channel, remove tree stumps (including roots) on the channel banks,
laying the stream bank back to a 2:1 or 3:1 side slope and stabilizing the resulting slope
to prevent further erosion or migration of the channel bed.
Improve the hydraulic capacity of the creek by adding high flow weirs at the sharp S-
turns that will allow high flow to negotiate these turns with decreased resistance to flow,
while maintaining the meandering nature of the stream under low flow conditions.
Minutes
Page 2
• Stabilize eroding streambanks. Areas of sever erosion are primarily located at the shaper
bends in the creek and in areas where large obstruction have blocked the main channel
(large trees in creek).
Mike stressed that the City had specific objectives with this project and that flood reduction
was the primary consideration. The City will not construct the project unless flood reduction
benefits from the project justify the cost of the project. Factors that will reduce the benefit
with respect to flood control are: higher "n" values associated with some types of bio-
engineering versus "hard" improvements and the ability to increase channel size (by laying
back channel banks) without impacting too many trees in the overbank areas.
4. Mike asked the agencies to provide input to The City and Woolpert on what would be
required for different scenarios of bank treatments. The following summarizes the responses
received:
John Dorney, DENR: For Section 401 certification, DWQ will not require mitigation of
stream impacts if the following conditions are met. 1.) Bioengineering techniques are
used to stabilize the stream banks. 2.) Equipment use in the stream bottom is minimized
during construction. 3.) Reforestation of the channel banks and overbank areas occurs.
Channel bank forestation may include small diameter trees that will help maintain lower
"n" (roughness) values. The state will require monitoring (see below). If hard
improvements are used (riprap), the state will require mitigation as follows: 1:1 per
linear foot of stream impact at a cost of $125 per foot. The state will not consider soft
improvements downstream of Hardimont Road as a mitigating factor for hard
improvements upstream of Hardimont Road (Mike asked this question of John).
Todd Tugwell, USACOE: For 404 permit, a nationwide permit would be the likely route
if bioengineering techniques are used. The nationwide 18 permit would be the one that
could be used. Todd stated that they (the Corps) have latitude with the 500 foot limit on
Nationwide permits depending on the impact to the stream. If the impact is minimal (i.e.
bio-engineering) then this project can be permitted under a nationwide permit.
Owen Anderson, NCWRC: The Wildlife Resources Commission is most concerned with
preserving habitat for aquatic species and other wildlife that inhabit the stream corridor.
Owen will require a reforestation plan to replace trees on the channel banks and in the
overbank areas that are removed during construction. Owen also asked that the SEPA
document and permit applications address the City's efforts to manage watersheds and
flooding problems throughout the City.
5. Warren asked about stream water quality monitoring requirements. John stated that
monitoring would be required before construction to establish baseline conditions and for
three years after construction. Warren asked if monitoring data from Marsh Creek, also in
Raleigh, could be used as baseline conditions for Big Branch. John said no. Warren
discussed availability of plant species with Owen Anderson. It was recommended that the NC
State university be contacted concerning possible nurseries.
6. Anne asked if any mitigation credit could be claimed for bioengineering work performed by
the City elsewhere, citing Oakwood Cemetery as an example. John and Todd both said no
because the work is being performed in a different watershed- but indicated that, if the work
was performed in the same watershed, it might be possible to get some credit, depending on
the situation.
Minutes
Page 3
7. The regulatory agencies would also like to see the results of the benefit to cost analysis
performed by Woolpert for the Watershed Master Plan, to include finished floor flooding
summaries and estimated annual damages.
Documentation of Existing Flooding Problems along Big Branch from Hardimont
Road to Compton Road
Source: Big Branch Stormwater Masterplan, August 5, 1997
1. Summary of Existing Flooding Problems
The following table describes the flooding of structures along this section of Big Branch.
The information shown is based on the modeling results from the HEC-RAS model that
was used for the Master Plan and surveyed finished floor elevations for every house (48
houses) along this reach. The numbers shown represent flooding with future flows
(built-out conditions).
Table 1. - Summary of Number of Structures Flooded
Existing Improved:
Bioengineered
@ 3.5:1
# Flooded (ave
Depth) # Flooded (ave
Depth)
2-Year Flooding
Houses 5(0.97) 1 (1.61)
Garages/Storage 4(0.69) 1 (0.43)
10-Year Flooding
Houses 7(l.79) 6(l.22)
Garages/Storage 5(l.67) 2(l.30)
25-Year Flooding
Houses 10(l.89) 6(2.01)
Garages/Storage 9(l.61) 6(l.11)
50-Year Flooding
Houses 13(l.81) 8(1.90)
Garages/Storage 13(l.45) 6(l.64)
100-Year Flooding
Houses 19 (0.11) 13 (0.07)
Garages/Storage 13 (0.09) 11 (0.06)
II. Summary of Estimated Flood Damage
Annual Damage, Existing Conditions: $82,250
Annual Damage, Improved: $43,500
Annual Benefit: $38,750
Attached to this summary are spreadsheets showing the calculations that support
the above numbers and the section of the Masterplan Report that describes the
method used to calculate annual flood damages.
them of their home location and flood plain surveys of residents and property owners (such as that
carried out by the Urban Observatory) forewarn and inform owners to possible hazards and may
induce some to purchase flood insurance.
Public Education/Involvement
Public education, through slide shows, pamphlets, use of the press, programs or flood plain
surveys (such as that carried out by the Urban Observatory), alert owners to possible flood hazards.
Self help warning systems also aid in public awareness. A program of offering technical aid for
those owners wishing to flood proof their homes or businesses also provides positive results.
Post Flood Programs
The short time period just after a flood has occurred is the most opportune time to implement flood
hazard mitigation programs. At this time rebuilding (requiring permits) begins, clean-up activities
are ongoing, funds from various sources may be available and flood victims and political leaders
have their attention focused on the problem of flooding. A well conceived post-flood mitigation
strategy can achieve great progress in the 30 to 60 day period following a major flood event. For
example, studies have shown that nearly 70% of all floodproofing by homeowners takes place in
this short time period. After this time period the memory of the flood has faded and propem-
owners have turned their attention to other things.
A post-flood program should include many of the non-structural topics covered previously.
Property owners are usually interested in information on clean up and financial assistance. This
information can be used as a lead which car be followed by information that communicates the
mitigation message. Self-help manuals, slide or video shows available from FEMA, door-to-door
flyers or visits, public meetings, Disaster Application Centers (DAC) and news releases are all
applicable. The State of Illinois and the Association of State Floodplain Managers (ASFPN11) have
been leaders in the use of DAC Tables for post-flood assistance and have many useful publications
on the subject.

A_?'L16
The methodology used to perform the cost benefit analysis in this study is based on depth-damage
and elevation frequency curves developed by the Flood Insurance Agency (FIA). The method is
outlined in "Significance of Location in Computing Flood Damage" (Johnson, 1980. The
procedure used for this analysis was as follows:
1. The construction costs, land purchase costs and annual maintenance costs associated
with each improvement option were estimated. The land costs were based on reviews
of tax values of selected properties. Construction cost estimates were based on Means
Heavy Construction Cost Data (Means, 1996) and recent Bid Tabulations for
Big Branch Stormwater Master Plan City of Raleigh
July, 1997 Page 7-5
W'OOLPEFT
Funding sources for disaster assistance are numerous and, often confusing. A FEMA Public
Assistance Officer is available to assist community preparation for a disaster and in locating
funding for post-disaster assistance. Funds from the FEMA Individual and Family Grant and
Small Business Administration Disaster Loan programs provide assistance to private propem
owners.
"'7.1.3 Cost-Benefit Analysis Procedure
construction work done in the Raleigh area.
2. Finished floor, basement, garage, carport and storage shed elevations were obtained for
127 properties. These elevations were used to evaluate the extent of flooding under
existing, future and improved conditions.
The HEC-RAS and XP-SNVM1v1 models were run for 9 scenarios: existing land-use
conditions, future land-use conditions, and each of seven alternatives (using future
land-use conditions for peak flows). It should be noted that the difference in water
surface profiles between existing and future land-use conditions is very small. The
model results were exported to a spreadsheet table, which compared water surface
elevations for different flood events with the surveyed finished floor, lower level,
crarage, carport, and storacre building elevations for each structure. It should be noted
that some structures only had a finished floor surveyed (i.e. a one story ranch with no
garage or carport) while other structures had more than one surveyed elevation (i.e. a
split level with a garage and storage shed). The spreadsheet computed a depth of
flooding in each surveyed structure (or part of a surveyed structure) for each flood
event based on this information.
4. The frequency of the flood event at which the modeled water surface elevation is equal
to or greater than the surveyed elevations (i.e. finished floor, basement, garage, etc.) of
each structure was determined from the output results of the HEC-RAS or XP-SNN-MM
model. The model output reported 2-, 10-, 25-, 50- and 100- year flood frequency
event elevations. For this analysis, interpolation was used to estimate 5-, 15-, 20-. and
30-year events as well. Based on the depth in the lowest modeled flood frequency
event, a determination was made to round down to an un-modeled flood frequency or
to set the flood frequency at the lowest modeled event. The depth threshold for
interpolation was set at 0.47 feet (this number was determined based on the average
difference between profiles in the ranges over which interpolation was to occur. The
result is a somewhat conservative estimate, rounding to a lower flood frequency more
often than not). For example, if the 50-year modeled flooding depth was .89 feet, the
flood frequency was set at the 30-year event. If the 50-year modeled flooding depth
was 0.45 feet, the flood frequency was set at the 50-year. For the interpolation between
the 25- and the 10-year event, the depth threshold was set at 0.47 or greater for the 20-
year and 1.0 feet or greater for the 15-year.
The structures for which surveyed information was obtained were assigned a structure
type. Since the watershed does not contain any homes with true basements (i.e. the
basement floor is lower than the lowest point on the surrounding ground), all homes
were assigned a "one story-no basement" structure type. Lower level elevations were
considered to be finished living areas that walked out to ground elevation (these are
typically in the rear of a sloping lot).
6. A flood hazard factor (FHF) was determined for each surveyed elevation at each
structure. The FHF is the difference in water surface elevation between the 10-year
and 100-year flood frequency events.
7. Based on the FHF and the flood frequency event at which flooding first occurs, each
structure was assigned a percent annual damage expected. Table 7-1 below was used
Big Branch Stormwater Master Plan City of Raleigh
July, 1997 ? Page 7-6
WOOLPERT
to assign a percent damage based on this data:
Table 7-1. -- Total Expected Percent Annual Damage (Structure and Contents)
,Flood Hazard .
Factor One Storv (No
Basement) One Story (With ' .:
Basement)
2-yr Event at First Floor
1.0 9.4 17.7
2.0 10.4 18.3
4.0 13.2 20.2
8.0 17.6 23.1
12.0 19.4 24.7
16.0 20.6 26.2
20.0 19.5 25.6
5-vr Event at First Floor
1.0 4.3 13.5
2.0 4.2 11.9
4.0 5.2 10.4
8.0 6.9 9.6
12.0 8.0 10.2
16.0 8.5 10.6
20.0 8.4 10.8
10-yr Event at First Floor
1.0 2.4 11.4
2.0 2.1 8.4
4.0 2.5 5.4
8.0 3.4 4.8
12.0 4.1 5.2
16.0 4.6 5.6
20.0 4.7 5.8
Big Branch Storinwater Master Plan City of Raleigh
July, 1997 ? Page 7-7
WOOLFERT

Flood Hazard
Factor. One Story (No
Basement) One Story (With.
Basement)
15-yr Event at First Floor
1.0 1.8 10.5
2.0 1.5 6.9
4.0 1.6 3.7
8.0 2.2 3.1
12.0 2.8 3.4
16.0 3.1 3.7
20.0 3.2 3.9
:20-yr Event at First Floor , .
1.0 1.4 9.8
2.0 1.1 5.8
4.0 1.2 2.8
8.0 1.7 2.3
12.0 2. i , 2.5
16.0 2.3 2.8
20.0 2.5 2.9
25-yrEvent at First Floor:
1.0 1.1 9.3
2.0 0.9 5.1
4.0 0.9 2.3
8.0 1.3 1.9
12.0 1.6 2.0
16.0 1.8 2.2
20.0 2.0 2.3
30-yr Event at First Floor, .
1.0 1.0 8.9
2.0 .7 4.5
Big Branch Stormwater Master Plan City of Raleigh
July, 1997 ? Page 7-3
SUO PERT
Flood Hazard
Factor One Story (No .
Basement) One Story.(NVith
`Basement)
4.0 .8 1.9
8.0 1.1 1.6
12.0 1.3 1.6
16.0 1.5 1.8
20.0 1.7 2.0
50-yr Event at First Floor .
1.0 0.6 7.8
2.0 0.4 3.2
4.0 0.5 1.2
8.0 0.6 0.9
12.0 0.8 0.9
16.0 0.8 1.0
20.0 1.0 1.1
100-N-r Event at First Floor
1.0 0.3 6.5
2.0 0.2 1.9
4.0 0.2 0.6
8.0 0.3 0.4
12.0 0.3 0.4
16.0 0.3 0.4
20.0 0.4 0.4
Source: Johnson, 1985
8. A value (structure and contents) was assigned to each structure. The values assigned
were based on average retail values of homes in the watershed. This information was
obtained from a local realtor familiar with this area. In addition, tax values of homes
were checked to corroborate the realtor's value estimates. The following values were
assigned to the different structure types:
House (2 story or ranch) $150,000
Split Level House (Lower Level Floods only) $75,000
Bic Branch Stormwater Master Plan City of Raleigh
July, 1997 M . Pace 7-9
R'OOLpE.QT
Garage $20,000
Carport $12,000
Storage Building $6,000
The commercial and industrial properties which are at risk for flooding in this
watershed are primarily located in the southern part of the watershed. Tile flooding of
these structures is caused by backwater from Crabtree Creek. Because none of our
alternatives had an impact on these properties, they were assigned a value of $150,000
for consistency. The true value of these structures is unknown.
The total annual damage for the existing and future land-use conditions and for each of
the alternatives was computed by multiplying the percent damage assessed for each
structure by the structure value. The sum of these individual damages equaled the total
annual damage for that run. The annual benefit of each alternative was computed by
subtracting the total annual damage for the alternative from the total annual damage for
the future land-use condition.
10. Using an annual rate of return of 7.5% and a design life of 30 years, the total present
cost and total present benefit of each alternative was computed using an annualized
series with payments made at the beginning of each year. The benefit was then divided
by the cost to arrive at a Benefit/Cost Ratio for each alternative.
The results of the alternative analyses can be found in Appendix G.
7.2 BIG BRANCH WATERSHED IMPROVEMENT OPTIONS FOR QC' ;:^;TI": CO\TROL
Early in the process of examining alternatives, it became apparent that single improvements in this
watershed would not have a significant impact on flooding. A combination of improvements in
different areas of the watershed was required to obtain an appreciable flood reduction benefit.
These strategic combination of several improvements formed Storm Water Management
Alternatives. Table 7-2 below identifies the 14 separate improvement options which were used to
create Storm Water Management Alternatives. A more complete description can be found in
Section 7.6. Map 7-1 identifies the location of each of the proposed improvements.
Big Branch Stormwater ,Master Plan City of Raleigh
July, 1997 ? Page 7-10
a'ootPERT

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July, 1997 Page G-36
WOOLPERT
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AL
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NCDENR
JAMES B. HUNT JR.
GOVERNOR
BILL HOLMAN
SECRETARY
KERRT. STEVENS
DIRECTOR

?y
Warren C. High
Woolpert LLP
4141 Rossyln Drive
Cincinnati, Ohio 45209-1 1 83
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 15, 2000
DIVISION OF WATER QUALITY
Re: SCH File #00-E-4300-0352; DENR Project #1028
Big Branch Stream Improvements, City of Raleigh, Wake County
Dear Mr. High:
On March 13, 2000, the State Clearinghouse deemed the North
Carolina Environmental Policy Act review on the above project complete (see
attached letter from the Clearinghouse). It is now acceptable to proceed with
your permit applications through the Division of Water Quality for the
proposed project. No further actions on the Environmental Assessment are
required.
If there is anything I can assist you with, please do not hesitate to give
me a call at [phone], ext. 567.
Sincerely,
Gloria F. Putnam
Environmental Specialist
enclosure (SCH ltr)
MAR 1 7 2000
fVOS GRO P
tJ-" SECTION!
cc: John Dorney, Wetlands Unit
Ken Schuster, Raleigh Regional Office
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617
website: h2o.enr.state.nc.us PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST-CONSUMER PAPER
a

North Carolina
Department of Administration
James B. Hunt, Jr., Governor
Katie G. Dorsett, Secretary
March 13, 2000
Ms. Gloria Putnam
NC Dept. of Env. & Nat. Resources
Division of Water Quality
1617 Mail Service Center
Raleigh. NC 27699-1617
Dear Ms. Putnam:
Re: SCH File # 00-E-4300-0352; Environmental Asscssment;'Finding of No Significant Impact
Proposed 1600 LF of StreambanL Stabilization for BiL,.z Branch Located in the City of Raleigh
The above referenced environmental impact information has been reviewed through the State
Clearinghouse under the provisions of the North Carolina Environmental Policy Act.
No comments were made by any state/local agencies in the course of this review. Therefore, no further
environmental review action on your part is required for the compliance with the Act.
Best rerards.
Sincerely,
lkls. C.'hrvs Bat,«ett
Environmental Policy Act Coordinator
Attachments
cc: Region J
MAR 1 72000
^,f?a7S GkOUE'
;TV SFCTtf?P:
116 West Jones Street Raleigh, North Caroling 27603-3003 Telephone [phone]
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