20001303 Ver 1_Complete File_20001011

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 1••
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
November 3, 2000
Cherokee County
DWQ Project # 001303
APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS
Mr. Cliff McNeill, NCDot
Post Office Box 25201
Raleigh, NC 27611-3201
Dear Mr. McNeill:
You have our approval, in accordance with the attached conditions and those listed below, to place fill material 510 linear feet of streams
for the purpose of stabilizing a stream bank at Andrews Rest Area (NC 19 and SR 1388) as described in your application dated October 6,
2000. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3257. This
certification allows you to use Nationwide Permit Number 27 when the Corps of Engineers issues it. 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 Water shed 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 be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this
approval to be valid you must follow the conditions listed in the attached certification and any additional conditions listed below.
1. Deed notifications or similar mechanisms shall be placed on all remaining jurisdictional wetlands and streams to notify the state in order
to assure compliance for future wetland and/or water impact. These mechanisms shall be put in place within 30 days of the date of this
letter or the issuance of the 404 Permit (whichever is later).
2. If this project is proposed to be utilized for compensatory mitigation, then detailed, technical answers must be provided to DWQ's letter
of October 23, 2000.
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 Domey at 919-733-9646.
Sin
R r
Steve
Attachment
cc: Corps of Engineers Asheville Field Office
Asheville DWQ Regional Office
File copy
Central Files
Mickey Henson; Appalachian Environmental Services
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
,,.W . '"
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
DWQ Project No.:
Annlirant•
/••
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
County:
Project Name:
Date of Issuance of 401 Water Quality Certification:
Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules,
and any subsequent modifications, the applicant is required to return this certificate to the 401/Wetlands Unit,
North Carolina Division of Water Quality, 1621 Mail Service Center, Raleigh, NC, 27699-1621. This form may
be returned to DWQ by the applicant, the applicant's authorized agent, or the project engineer. It is not
necessary to send certificates from all of these.
Applicant's Certification
I, , hereby state that, to the best of my abilities, due care and diligence
was used in the observation of the construction such that the construction was observed to be built within
substantial compliance and intent of the 401 Water Quality Certification and Buffer Rules, the approved plans
and specifications, and other supporting materials.
Signature: Date:
Agent's Certification
I, , hereby state that, to the best of my abilities, due care and diligence
was used in the observation of the construction such that the construction was observed to be built within
substantial compliance and intent of the 401 Water Quality Certification and Buffer Rules, the approved plans
and specifications, and other supporting materials.
Signature: Date:
Engineer's Certification
Partial Final
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project,for
the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of
the construction such that the construction was observed to be built within substantial compliance and intent of
the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other
supporting materials.
Signature Registration No.
Date
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
Appalachian Environmental Services
Streams, Rivers, Lakes & Wetlands - Design, Restoration & Construction
October 26, 2000
Todd St. John
NC Division of Water Quality
Wetlands/401 Unit
4401 Reedy Creek Road
Raleigh, NC 27607
2000
RE: NC DOT Andrews Rest Area Streambank Stabilization
Cherokee County
DWQ #001303
Mr. St. John,
This letter is in response to your comments dated October 20, 2000 enclosed in the letter
from Cyndi Karoly dated October 23, 2000 concerning the streambank stabilization
projects at the North Carolina Department of Transportation (NC DOT) Andrews Rest
Area. This project was designed for the purpose of stabilizing the streambank and is not
proposed for mitigation credit.
Sincerely,
I
Mickey B. Henson
Principal Hydrologist
Appalachian Environmental Services
Post Office Box 52
72 John Allman Lane
Webster, NC 28788-0052
828.586.1973 Phone
828.631.0343 Fax
[e-mail]
www.appalachianenvironment.com
10/26/2000 14:58 8286310343 APPALtCHIAN ENVIRO PAGE 02
Appalachian Environmental Services
Streams, Rivers, Lakes & Wetlands - Design, Restoration &
October 26, 2000
Todd St. Jolts
Wetlands/401 Unit
4401 Reedy Creek Road
Raleigh, NC 27607
RE: NC DOT Andrews Rest Area Streambank
Cherokee County
DWQ #001303
Mr. St. John,
This letter is in response to your comments dated Oa
from Cyndi Karoly dated October 23, 2000 concernit
projects at the North Carolina Department of Trausp(
Area. This project was designed for the purpose of s
proposed for mitigation credit.
oer 20, 2000 enclosed in the letter
the streambank stabilization
ation (NC DOT) Andrews Rest
tilizine the streambank and is not
Sincerely, /o a
Mickey B. Henson ?j
Principal Hydrologist
Vic
awl
P nn r ?i ,, f
Appalachian EnviFonirmW
ce Box Box icta
Foal Office 52 2 /,C--
72 `\ ?
John Adman
Lane Webster, NC 28788-W52
828.586.1973 Phone Cs(,,L9'L(>
828.631.0343 fax ?
watcr(a?appalachianenvi com
www.appalaohim>environmen corn
Cl _ D ?
10/26/2000 14:58 8286310343
Appalachian Environmental Services
Streams, Rivers, Lakes & Wetlands - Design, Restoration &
Facsimile Cover
Date: October 26, 2000
To: Todd St. John, NC DWQ - W
From: Mickey Henson, Appalachian
Re: NC DOT Andrews Rest Area
Cherokee County
DWQ #001303
Pages: 2 (including cover sheet)
Attached is the letter per our discussion, stating the I
is a streambank stabilization. If you have any questi
1973_ Thanks for the assistance.
Attachment: Confirmation Letter
ENVIRO PAGE 01
1 Unit
yntal Services
k Stabilization
DOT Andrews Rest Area Project
I may be reached at 828-586-
AppWuhian Favironnld"
Post Office Box 52
72 John Allman Lane
Webster, NC 2878&00:
323.586.1973 Phone
$23.631.0343 Fax
e_wn
NCDENR
DIVISION OF WATER QUALITY
October 20, 2000
Memorandum To: John Dorney, Cyndi Karoly
From: Todd St. John
Subject: NC DOT - Andrews Rest Area
Cherokee County
DWQ# 001303
I recommend that we need the following specific language requesting information
to complete the review process:
1) There is not enough information in the submittal dated October 9, 2000 to show that
stream restoration (as defined in General Water Quality Certification No. 3257) is
needed or would be achieved. Please be advised that, in addition to the requested
information, field verification of the above by the Division of Water Quality's
Asheville Regional Office shall be necessary.
2) Please complete the attached morphological measurements table. All of the
information is necessary to begin the review process.
3) Please provide a detailed, specific explanation of how dimension, pattern, and profile
of the existing stream has been altered or is unstable. Please provide detailed, specific
information on the reference reach on which the restoration is based. Please provide
specific and detailed explanation of how the restored channel's dimension, pattern
and profile will be changed to a stable form. At a minimum this information must
include the following:
a) The specific, marked, exact location of the reference reach used on a 1:24000
USGS TOPO map.
b) A plan view of the reference reach that clearly demonstrates pattern, including
belt width and pool and riffle locations. A scaled longitudinal profile of the
reference reach that indicates bankfull and channel bottom elevations as well as
pool and riffle locations at a minimum. A scaled example pool and an example
riffle cross section of the reference reach showing thalweg, bankfull and flood
prone area elevations. The location of the bankfull indicators must be provided.
c) A scaled plan view of the channel proposed for restoration that clearly overlays
the existing and proposed, restored channel. Additionally, the cross sections
provided of the restored reach do not appear to specify pools or riffles and do not
indicate bankfull elevations. It is not clear how the dimension of the cross section
?0 J-6'k?
profile will be adjusted. All of the parameters in item 3(b), above, must be shown
on the cross section.
d) The raw dat e pebble cou alysis for the reference reach and reach
propose o restoration must be prove d. Also a cumulative plot of the data
must ovided.
e) A co ete sediment transport analysis inclu ing the specific calculations and
dat ed that clearly demonstrates that the pro osed restored reach can achieve
dy aequilibri?Youdemonstrate
th channel 84 se iment size will be
th t no excessive?shear stresses are predicted
f) A y regional curve used to verify bankfull di
ar a for the restored reach and the reference i
4) A det ed planting plan that shows the extent, sl
The exa t, scaled extent of the planting must be
25 foot ri ' an area as measured from each ban]
necessary shear stress to move
ved. You must also demonstrate
could result in down cutting.
rge and bankfull cross sectional
i must be provided.
s and nature of the plantings.
n, including the density, and the
5) The detail f the vanes does not appear to ovide adequate protection for the stream
bed or bank. 1. of diameter rocks 1kely too small. The detail does not indicate
adequate footing or d?ep??lders. The detail also shows the angle of
inclination to be too steep. The vanes also do not appear to extend far enough up the
bank. Additionally, the detail does not agree with the narrative describing the vanes
on pages 4 and 5 of the submittal. Please refer to the Draft Internal Technical Guide
for Stream Work in North Carolina, August 2000, pages 32 and 33, for additional
information.
6) A physical monitoring plan must be provided that includes the establishment of a
permanent riffle and pool cross sections and longitudinal profile measurements. The
measurements must include, at a minimum, the parameters indicated in item 3(b),
above. The locations of the above must be indicated on the plan view. Pebble counts
for each of the above must also be performed and reported annually. Additionally,
tree survival rate must be monitored in a manner that demonstrates a survival rate of
320 trees per acre. The method for the survival rate measurement must be provided.
7) A permanent easement or similar form of protection must be provided for the stream.
All of the above information shall be necessary to establish that restoration can be
achieved. If any of the information indicates that restoration will not be achieved, this
Office will consider the re-submitted information for enhancement credit. In any event,
insufficient information was provided to conclude whether or not enhancement or
restoration is needed or would be provided.
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
Mr. Mickey Henson
Appalachian Environmental Services
Post Office Box 52
Webster, NC 28788-0052
Dear Mr. Henson:
11 LI?W'A
0 !09 ?Ll
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
October 16, 2000
DWQ # 001303
Cherokee County

On October 9, 2000 the Division of Water Quality (DWQ) was notified by receipt of
applications regarding your plan to restore 510 feet of streams for the purpose of stream
restoration in Cherokee County. Approval from DWQ is required to disturb this area. The
enclosed application needs to be completed and returned to us with 7 copies of the
application, supporting maps and documentation. In particular as described in 15A NCAC
2B .0502, we will require you to locate all streams and ponds on th Please show
these on maps of suitable scale (for instance =100 fe can be-' gitit rmine
your projects' compliance with 15A NCAC 2H .050 - d r Langua e c
Please call me at [phone] if you have a ions or would require copies o
our rules or procedural materials. This project will remain o hold as incomplete in accordanc
with 15A NCAC 2H .0505(c). The processing time for this a plication will begin when this
information is received. If we do not hear from you by writi within three (3) weeks we 1
assume you no longer want to pursue the project and will co sider it withdrawn.

cc: Asheville DWQ Regional Office
Asheville Corps of Engineers
File Copy
Central Files
Li??ac SSnkd rni?
5?,°"? ?
CIS n
?wvr
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

Appalachian Environmental Services
Streams, Rivers, Lakes & Wetlands - Design, Restoration & Construction
MEMORANDUM
Date: October 10, 2000
r
2000
To: Rob Riding, NC DWQ
From: Mickey Henson, Appalachian Environmental Services
Re: Permit Review Fee for NC DOT - Andrews Rest Area
003®3
Enclosed please find the check for the 401 permit review for the NC DOT - Andrews
Rest Area Riverbank Restoration. If you have any questions I may be reached at
828.586.1973 (day) and 828.631.1464 (evening). Talk to you soon.
P4?pME 7
RECEIVED
Appalachian Environmental Services
Post Office Box 52
72 John Allman Lane
Webster, NC 28788-0052
828.586.1973 Phone/Fax
[e-mail]
www.appalachianenviroment.com
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
Mr. Mickey Henson
Appalachian Environmental Services
Post Office Box 52
Webster, NC 28788-0052
Dear Mr. Henson:
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
October 23, 2000
DWQ # 001303
Cherokee County
On October 9, 2000 the Division of Water Quality (DWQ) was notified by receipt of
applications regarding your plan to restore 510 feet of streams for the purpose of stream
restoration in Cherokee County. Approval from DWQ is required to disturb this area. The
enclosed application needs to be completed and returned to us with 7 copies of the
application, supporting maps and documentation. In particular as described in 15A NCAC
2B .0502, we will require you to locate all streams and ponds on the property. Please show
these on maps of suitable scale (for instance 1" =100-feet) so we can begin to determine
your projects' compliance with 15A NCAC 2H .0500.
Please call me at [phone] if you have any questions or would require copies of
our rules or procedural materials. This project will'remain on hold as incomplete in accordance
with 15A NCAC 2H .0505(c). The processing time for this application will begin when this
information is received. If we do not hear from you by writing within three (3) weeks we will
assume you no longer want to pursue the project and will consider it withdrawn.
Sincerely,
Jo (n R. Domey
cc: Asheville DWQ Regional Office
Asheville Corps of Engineers
File Copy
Central Files
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
ewA
NCDENR
DIVISION OF WATER QUALITY
October 20, 2000
Memorandum To: John Domey, Cyndi Karoly
From: Todd St. John
Subject: NC DOT - Andrews Rest Area
Cherokee County
DWQ# 001303
I recommend that we need the following specific language requesting information
to complete the review process:
1) There is not enough information in the submittal dated October 9, 2000 to show that
stream restoration (as defined in General Water Quality Certification No. 3257) is
needed or would be achieved. Please be advised that, in addition to the requested
information, field verification of the above by the Division of Water Quality's
Asheville Regional Office shall be necessary.
2) Please complete the attached morphological measurements table. All of the
information is necessary to begin the review process.
3) Please provide a detailed, specific explanation of how dimension, pattern, and profile
of the existing stream has been altered or is unstable. Please provide detailed, specific
information on the reference reach on which the restoration is based. Please provide
specific and detailed explanation of how the restored channel's dimension, pattern
and profile will be changed to a stable form. At a minimum this information must
include the following:
a) The specific, marked, exact location of the reference reach used on a 1:24000
USGS TOPO map.
b) A plan view of the reference reach that clearly demonstrates pattern, including,
belt width and pool and riffle locations. A scaled longitudinal profile of the
reference reach that indicates bankfull and channel bottom elevations as well as
pool and riffle locations at a minimum. A scaled example pool and an example
riffle cross section of the reference reach showing thalweg, bankfull and flood
prone area elevations. The location of the bankfull indicators must be provided.
c) A scaled plan view of the channel proposed for restoration that clearly overlays
the existing and proposed, restored channel. Additionally, the cross sections
provided of the restored reach do not appear to specify pools or riffles and do not
indicate bankfull elevations. It is not clear how the dimension of the cross section
profile will be adjusted. All of the parameters in item 3(b), above, must be shown
on the cross section.
d) The raw data of the pebble count analysis for the reference reach and reach
proposed for restoration must be provided. Also a cumulative plot of the data
must be provided.
e) A complete sediment transport analysis including the specific calculations and
data used that clearly demonstrates that the proposed restored reach can achieve
dynamic equilibrium. You must demonstrate that necessary shear stress to move
the active channel D84 sediment size will be achieved. You must also demonstrate
that no excessive shear stresses are predicted that could result in down cutting,
f) Any regional curve used to verify bankfull discharge and bankfull cross sectional
area for the restored reach and the reference reach must be provided.
4) A detailed planting plan that shows the extent, species and nature of the plantings.
The exact, scaled extent of the planting must be shown, including the density, and the
25 foot riparian area as measured from each bank.
5) The detail for the vanes does not appear to provide adequate protection for the stream
bed or bank. 1.5 foot diameter rocks are likely too small. The detail does not indicate
adequate footing or depth of the boulders. The detail also shows the angle of
inclination to be too steep. The vanes also do not appear to extend far enough up the
bank. Additionally, the detail does not agree with the narrative describing the vanes
on pages 4 and 5 of the submittal. Please refer to the Draft Internal Technical Guide
for Stream Work in North Carolina, August 2000, pages 32 and 33, for additional
information.
6) A physical monitoring plan must be provided that includes the establishment of a
permanent riffle and pool cross sections and longitudinal profile measurements. The
measurements must include, at a minimum, the parameters indicated in item 3(b),
above. The locations of the above must be indicated'on the plan view. Pebble counts
for each of the above must also be performed and reported annually. Additionally,
tree survival rate must be monitored in a manner that demonstrates a survival rate of
320 trees per acre. The method for the survival rate measurement must be provided.
7) A permanent easement or similar form of protection must be provided for the stream.
All of the above information shall be necessary to establish that restoration can be
achieved. If any of the information indicates that restoration will not be achieved, this
Office will consider the re-submitted information for enhancement credit. In any event,
insufficient information was provided to conclude whether or not enhancement or
restoration is needed or would be provided.
Appendix B Morphological Measurement Table
Variables Existing
Channel Proposed
Reach USGS Station Reference Reach
1. stream type
2. drainage area
3. bankfull width
4. bankfull mean depth
5. width/de th ratio
6. bankfull cross-sectional
area
7. bankfull mean velocity
8. bankfull discharge, cfs
9. bankfull max depth
10. width of flood prone area
11. entrenchment ratio
12. meander length
13. ratio of meander length to
bankfull width
14. Radius of curvature
15. Ratio of radius of curvature
to bankfull width
16. Belt width
17. Meander width ratio
18. Sinuosity (stream
len th/valle length)
19. Valle Slope
20. Average sloe -
21. Pool slope
22. Ratio of pool slope to
average slope
23. Maximum pool depth
24. Ratio of pool depth to
average bankfull depth
25. Pool width
26. Ratio of pool width to
bankfull width
27. Pool to pool spacing
28. Ratio of pool to pool
spacing to bankfull width
Draft Technical Guide for Stream Work in NC 19
A '

Appalachian Environmental Services
Streams, Rivers, Lakes & Wetlands - Design, Restoration & Construction
October 6, 2000
Robert Johnson pgY?'1F/?J
U.S. Army Corp of Engineers j T
Asheville Regulatory Field Office FQ
151 Patton Avenue, Room 208
Asheville, NC 28801-5006 1?ssUFOy
Dear Mr. Johnson,
9 2000
Wifa," 4th G€ 0UP
VNATFF? F? ..^.I s : SEO'C`,
001303
On behalf of the North Carolina Department of Transportation (NC DOT)
enclosed please find the application for Nationwide Permit Number 27 (Attachment A -
Pre-Construction Notification) for the purposes of restoring 510 lineal feet of riverbank.
The NC DOT has retained Appalachian Environmental Services to provide design,
permitting and restoration services for this project. The proposed construction project is
located at the Andrews Rest Area (South of the intersection of Highway 19 and State
Road 1388) on 510 lineal feet of the Valley River in Cherokee County, North Carolina
(Attachment B - Topographic Site Map; Attachment C - Photographs). The project will
consist of bioengineering, rock veins and root wads, please see the enclosed Project Plan.
The riparian area will be restored using native vegetation. This project is a continuation
Appalachian Environmental Services
Post Office Box 52
72 John Allman Lane
Webster, NC 28788-0052
828.586.1973 Phone/Fax
[e-mail]
www.appalachianenvironment.com
A;
of the restoration project started last year at the Rest Area (COE Action Id #200030290
and NC DWQ Project # 991315).
SCOPE
The objective of this stream restoration project is to improve the water quality,
riparian quality and stability of the river. Stabilizing the riparian area with native
vegetation and installing rock veins to redirect the flow during storm events will
accomplish long-term stabilization. Specific objectives for the project are as follows:
1. Restore a river reach based upon reference reaches.
2. Construct rock veins and root wads to redirect flow during storm events.
3. Stabilize the bankfull elevation along the reach.
4. Slope and vegetate the riverbanks so they are more resistant to flooding.
5. Plant native trees, bushes and ground cover that will stabilize the streambanks, shade
the stream, and provide wildlife cover and food.
CHANNEL RESTORATION TECHNIQUES
Meander Design
The approach used results in an average channel slope being determined by
meander geometry (meander wavelength, meander arc length, average width at bankfull,
meander amplitude, radius of curvature and arc angle). These approaches are based on
the assumption that the controlling factors in the channel (water and sediment inputs, bed
material gradation, and bank erosional resistance) will be similar to those in a selected
reference reach (either the restoration reach before disturbance or undisturbed reaches).
If the reach targeted for restoration is closely bounded by undisturbed meanders,
NC DOT - Andrews Rest Area - Valley River Restoration
Page 2
dimensions of these undisturbed reaches may be studied for use in the restored or created
reach.
Bankfull Determination
Visual identification of bankfull flow on large streams and rivers in alluvial
bottoms is relatively easy. However, rivers and streams in the Southern Appalachians
rarely have alluvial bottoms. Some rivers seldom develop distinctive topographic breaks
between the bank and the floodplain common in larger streams and rivers. Therefore,
bankfull flow was estimated by observing vegetation, bare rock, washed root lines, and
changes from a steep to gentle bank slope.
We have experienced that the best indicators of bankfull flow in the Southern
Appalachians tend to be signs of repeated erosion and cleansing of banks and deposition
on point bars. Storms larger than bankfull can erode the banks and mask the indicators.
In the Southern Appalachians, the vegetation line is probably the most difficult indicator
to use to determine bankfull depth. Riparian vegetation in the mountains withstands high
flows and may even revegetate quickly into the bankfull area. This is especially true with
certain types of mosses. Some of the problems of determining reliable indicators of
bankfull flow stem from the banks being undercut and caving in.
Particle Size Distribution (Dso)
Particle size data are usually reported in terms of D;, where I represents some
nominal percentile of the distribution and Di represents the particle size, usually
expressed in millimeters, at which i percent of the total sample by weight is finer. For
example, 50 percent of the total sample would be finer than the D50 particle size. For
estimating size distribution in steep mountain streams or rivers with substrate much
NC DOT - Andrews Rest Area - Valley River Restoration Page 3
coarser than the medium-gravel limitations of Federal Interagency Sedimentation Project
(FISP) samplers, a pebble count, in which at least 100 bed material particles are manually
collected from the streambed and measured, is used to measure particle size. At each
sample point along the cross section, a particle is retrieved from the bed, and the
intermediate axis is measured. The measurements are tabulated as to number of particles
occurring within predetermined size intervals, and the percentage of the total number in
each interval is then determined. Again, the percentage in each interval is accumulated to
give a particle size distribution, and the particle size data are reported as described above.
CHANNEL RESTORATION
In-Stream Restoration
To restore this portion of the river it is recommended that the toe of the riverbank
be rebuilt, rock veins constructed and root wads installed. The riverbank will be sloped
to stable slopes and revegetated. This restoration wi T'Slow storm event velocities an
dissipate energy of the flows that erode the streambanks. The rock structures and toe
protect' n reduce stress in the near bank region and are constructed at locations that need
bank protection. Rock veins should be constructed from boulders that are larger than the
rocks normally moved by the stream. Rock veins point upstream and will increase the
stage on the near bank and move flows toward mid-stream. Veins are built at a 20° to
30° angles from the near bank Veins slope from the streambank into the bed of the stream
at a 5 to 10% slope. The length of the vein is dependent on the bankfull stage. For this
reach the largest boulder needed is 6'x5'x4' (embedded 30%) and the smallest is
3'x3'x3' (embedded 30%). Above the toe protection, the streambank will be stabilized
using bioengineering.
NC DOT - Andrews Rest Area - Valley River Restoration Page 4
Root wads are installed at a 30° angle and the footer log should be installed 1.5
feet below the invert elevation. Anchor footer log rocks to be placed on the downstream
end of each footer log so that it is leaning against the log on the side away from the
channel. When backfilling over and around bottom footer logs, pack rock and logs in
between all wads to firmly secure all gaps.
Streambank Stabilization
Above the bankfull elevation the streambank will be sloped to the top of the bank
and vegetated. This feature benefits the stream by slowing water velocity during high
water events. This in turn reduces the amount of erosion occurring on the streambanks.
This process will increase cross-sectional area. Coconut blankets will be pinned into the
bank for short-term (4-years) stabilization. The blankets will stabilize the streambank
long enough for the vegetation to root and stabilize the stream for the long-term.
Riparian Restoration
After the streambank has been sloped it will be seeded with native herbaceous and
woody plant seeds described on the following native plant list. Seeded sections of the
bank will be covered with coconut fiber blankets. These blankets will protect the area
from the streambed to the top of the streambank and be stapled to the ground using metal
landscape staples. Low growing woody species such as Henry's Garnett, Silky
Dogwood, and Buttonbush will be planted. These species will be planted as bare root
stock, potted stock or B&B during the next dormant season. As much as possible trees
that are on site will be avoided as the streambanks are altered. On the upper banks we
will plant taller growing trees that provide shade, stable banks and wildlife cover and
NC DOT - Andrews Rest Area - Valley River Restoration Page 5
food. The desires of the landowner will be incorporated into the planting plans whenever
possible.
The riparian restoration component of this project was broken down into a three-
zone approach. The species selected were chosen to be aesthetically pleasing and to
benefit wildlife by providing food or habitat. We are also supporters of the Southern
Appalachian Native Plant Initiative (SANPI), so we will only be using native species to
revegetate the riparian zone. A selection of the following species will be used at this site:
Henry's Garnett (Itea virginica), Dog Hobble (Leucothoe fonianesiana), Bushy St.
Johnswort (Hypericum densiflorum), Buttonbush (Cephalanthus occidentalis), Silky
Dogwood (Corpus amomum), Baldcypress (Taxodium distchum), Black Walnut (Juglans
nigra), Green Ash (Fraxinus pennsylvanica), Red Maple (Acer rubrum), Sycamore
(Platamus occidentalis) and Yellowroot (Xanthoriza simplicissima). All bush species 4-8
feet apart and trees will be planted 10-15 feet apart.
Sincerely,

Mickey B. Henson
Principal Hydrologist
Enclosures: Attachment A - Pre-Construction Notification
Attachment B - Topographic Site Map
Attachment C - Photographs
Restoration Plan
NC DOT - Andrews Rest Area - Valley River Restoration Page 6
Cc: Mr. John Dorney, NC Division of Water Quality
Mr. Owen Anderson, NC Wildlife Resources Commission
Mr. Richard Moore, NC Division of Land Resources
Mr. Cliff McNeil, NC Department of Transportation
Mr. Ed Ingle, NC Department of Transportation
NC DOT - Andrews Rest Area - Valley River Restoration Page 7
DWQ ID:
CORPS ACTION ID:
NATIONWIDE PERMIT REQUESTED (PROVIDE NATIONWIDE PERMIT #)
PRE-CONSTRUCTION NOTIFICATION APPLICATION
FOR NATIONWIDE PERMITS THAT REQUIRE:
1. NOTIFICATION TO THE CORPS OF ENGINEERS
2. APPLICATION TO NC DIV. OF WATER QUALITY FOR SECTION 401 CERTIFICATION
3. COORDINATION WITH THE NC DIVISION OF COASTAL MANAGEMENT
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 MUST
BE SENT TO THE NC DIVISION OF WATER QUALITY, ATTN: JOHN DORNEY, 4401 REEDY CREEK
ROAD, RALEIGH, NC 27607. PLEASE PRINT OR TYPE.
OWNER'S NAME: North Carolina Department of Transportation
MAILING ADDRESS: P.O. Box 25201
SUBDIVISION NAME :
CITY: Raleigh STATE: NC ZIP CODE: 27611-5201
PROJECT LOCATION ADDRESS, INCLUDING SUBDIVISION NAME (IF DIFFERENT FROM
MAILING ADDRESS ABOVE):
NCDOT Rest Area - Andrews, NC
3. TELEPHONE NUMBER: (HOME)
(WORK) 919-733-2920
4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS,
PHONE NUMBER: Cliff McNeill, NC DOT, P.O. Box 25201, Raleigh, NC 27611-5201 POC:
Mickey Henson, Principal Hydrologist, Appalachian Environmental Services, P.O. Box 52, Webster, NC
28788(828-586-1973)
5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC
MAP OR AERIAL PHOTOGRAPHY WITH SCALE):
COUNTY: Cherokee NEAREST TOWN: Andrews
SPECIFIC LOCATION (INCLUDE ROAD NUMBERS, LANDMARKS, ETC.) Just South of the
intersection of Highway 19 and State Road 1388 in Andrews, NC.
6. IMPACTED OR NEAREST STREAM/RIVER: Valley River RIVER BASIN: Hiwassee
7. (a) IS PROJECT LOCATED NEAR WATER CLASSIFIED AS TROUT, TIDAL SALTWATER, (SA),
HIGH QUALITY WATERS (HQW), OUTSTANDING RESOURCE WATERS (ORW), WATER
SUPPLY (WS-I OR WS-II)? YES f NO ? IF YES, EXPLAIN: This portion of river is classified
Trout Waters.
(b) IS THE PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISION OF COASTAL
MANAGEMENT AREA OF ENVIRONMENTAL CONCERN (AEC)? YES II NO M
(c) IF THE PROJECT IS LOCATED WITHIN A COASTAL COUNTY (SEE PAGE 7 FOR LIST OF
COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESIGNATION? N/A
(a) HAVE ANY SECTION 404 PERMITS BEEN PREVIOUSLY REQUESTED FOR USE ON THIS
PROJECT? YES II NO M IF YES, PROVIDE ACTION I.D. NUMBER OF PREVIOUS PERMIT
AND ANY ADDITIONAL INFORMATION (INCLUDE PHOTOCOPY OF 401 CERTIFICATION):
9.
10.
(b) ARE ADDITIONAL PERMIT REQUESTS EXPECTED FOR THIS PROPERTY IN THE
FUTURE? YES ? NO M IF YES, DESCRIBE ANTICIPATED WORK:
(a) ESTIMATED TOTAL NUMBERS OF ACRES IN TRACT OF LAND: 1.0
(b) ESTIMATED TOTAL NUMBER OF ACRES OF WETLANDS LOCATED ON PROJECT SITE:
0
(a) NUMBER OF ACRES OF WETLANDS IMPACTED BY THE PROPOSED PROJECT BY:
FILLING: N/A EXCAVATION: N/A
FLOODING: N/A OTHER : N/A
DRAINAGE: N/A TOTAL ACRES TO BE IMPACTED: 0
(b) (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF RELOCATED,
PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION:
LENGTH BEFORE: 510 FT AFTER: 510 FT
WIDTH BEFORE (based on normal high water contours): FT
AVERAGE DEPTH BEFORE: FT AFTER: FT
11
(b) (2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY)
OPEN CHANNEL RELOCATION: N/A PLACEMENT OF PIPE IN CHANNEL: N/A
CHANNEL EXCAVATION: N/A CONSTRUCTION OF A DAM/FLOODING: N/A
OTHER: Geotextile mat placement with grass for stabilization. Boulders used for rock vanes.
IF CONSTRUCTION OF A POND IS PROPOSED, WHAT IS THE SIZE OF THE WATERSHED
DRAINING TO THE POND? N/A WHAT IS THE EXPECTED POND SURFACE AREA? N/A
12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF MECHANICAL
EQUIPMENT TO BE USED? (ATTACH PLANS; 81/2 BY I 1 DRAWINGS ONLY)
Trackhoe and rubber tired loader for stabilization of streambank.
13. PURPOSE OF PROPOSED WORK: To stop and prevent erosions of streambank.
14. STATE REASONS WHY IT IS BELIEVED THAT THIS ACTIVITY MUST BE CARRIED OUT IN
WETLANDS (INCLUDE ANY MEASURES TAKEN TO MINIMIZE WETLAND IMPACTS)
N/A
15. YOU ARE REQUIRED TO CONTACT THE US FISH AND WILDLIFE SERVICE AND/OR
NATIONAL MARINE FISHERIES SERVICE REGARDING-THE PRESENCE OF ANY
FEDERALLY LISTED OR PROPOSED FOR LISTING ENDANGERED OR THREATENED
SPECIES OR CRITICAL HABITAT IN THE PERMIT AREA THAT MAY BE AFFECTED BY THE
PROPOSED PROJECT. DATE CONTACTED: N/A
16. YOU ARE REQUIRED TO CONTACT THE STATE HISTORIC PRESERVATION OFFICER
(SHPO) REGARDING THE PRESENCE OF HISTORIC PROPERTIES IN THE PERMIT AREA
WHICH MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED: N/A
17. DOES THE PROJECT INVOLVE AN EXPENDITURE OF PUBLIC FUNDS OT THE USE OF
PUBLIC (STATE) LAND? YES E] NO M (IF NO, GO TO 18)
(a) IF YES, DOES THE PROJECT REQUIRE PREPARATION OF AN ENVIRONMENTAL
DOCUMENT PURSUANT TO THE REQUIREMENTS OF THE NORTH CAROLINA
ENVIRONMENTAL POLICY ACT? YES II NO ?
2
rvt_lJu1 Koaasiae tnvir. rax:yly-r,5.5-?k-:U UCt 4 'UU 1t>:29 P.04/04
10/04/2000 07:24 82858bl'J(j
(b) IF YES, HAS THE DOCUMENT BEEN REVIEWED THROUGH THE NORTH CAROLINA
DEPARTMENT OF ADMINISTRATION STATE CLEARINGHOUSE7 YES CI NO D
IF ANSWER 17b 15 YES, THEN SUBMIT APPROPRIATE DOCUMENTATION FROM THE STATE
CLEARINGHOUSE WITH THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT.
QUESTIONS REGARDING THE STATE CLEARINOHOUSE REVIEW PROCESS SHOULD BE
DIRECTED TO MS, CHRYS BA00ET1', DIRECTOR STATE CLbARJNGHOUS£, NORTH
CAROLINA DEPARTMENT OF ADMINISTRATION, 116 WEST JONES STREET, RALEIGH,
NORTH CAROLINA 27603-8003, TELEPHONE [phone].
18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF PROPOSED
ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OF FILL MATERIAL INTO
W ETLAND5:
(a) WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES, AND
PONDS ON THE PROPERTY (FOR NATIONWIDE PER,MJT NUMBERS 14,18,21, 26, 29,
AND 38). ALL. STREAM (INTERMITTENT AND PERMANENT) ON TIME PROPERTY MUST
BE SHOWN ON THE MAP. MAP SCALES SHOULD BE I INCH EQUALS 30 FEET OF 1 INCH
EQUALS 100 FEET OF THEIR EQUIVALENT.
(b) IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE IMPACTED BY
PRODUCT.
(c} IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA SHEETS
RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE.
(6) ATTACH A COPY OF THE STORMWATER MANAGEMENT PLAN IF REQUIRED.
(e) WHAT ISLAND USE OF SURROUNDING PROPERTY? __
(o IF APPLICABLE, WHAT IS PROPOSED METHOD OF SELVAGE DISPOSAL? N/A
(g) SIGNED AND DATED AGENT AUTI4ORI,ZATION LETTER, IF APPLICABLE.
NOTE- WETLANDS OR WATERS OF THE US MAY NOT BE IMPACTED PRIOR TO:
1. ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
1 EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF WATER QUALITY
CERTIFICATION, AND
3. (IN THE TWENTY COASTAL COUNTIES ONLY)r A LETTER FROM THE NORTH
CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED
.ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT
PROGRAM.
OWNEWSiAGENT"S 5 NATURE TE`
(AGENT'S SIGNATURE VALID ONLY IF AUTHORIZATION LETTER FROM THE OWNER I$
PROVIDED).
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