20051395 Ver 1_Complete File_20070825

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Michael F. Easley, Governor

William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources

Alan W. Klimek, P.E. Director
Division of Water Quality

August22,2005

DWQ Project # 05-1399
Yancey County

Michele Lawhern, County Manager
Yancey County
Room 11, Courthouse
Burnsville, NC 29714

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AUG 3 1 2005

Subject Property:

~NR - WATER QUALITY
South Toe River EWP (DSR 2004-44) DSANDSTORMWATERBRANCH

Approval of 401 Water Quality Certification with Additional Conditions

Dear Mrs. Lawhern:

You have our approval, in accordance with the attached conditions and those listed
below, to place fill within or otherwise impact 900 feet of streams for the purpose of
streambank stabilization at the subject properties, as described within your application
received by the N.C. Division of Water Quality (DWQ) on July 25,2005. After reviewing
your application, we have decided these impacts are covered by General Water Quality
Certification Number(s) 3376 (3376). The Certification(s) allows you to use Nationwide
Permit(s) 37 when issued by the US Army Corps of Engineers (USACE). In addition,
you should obtain or otherwise comply with any other required federal, state or local
permits before you go ahead with your project including (but not limited to) Erosion and
Sediment Control, Non-discharge, and stormwater regulations. Also, this approval to
proceed with your proposed impacts or to conduct impacts to waters as depicted
in your application shall expire upon expiration of th.e 404 or CAMA Permit.

This approval is for the purpose that you described in your application. If you change
your project beyond this approval, 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 letfer and is thereby responsible for complying with all
conditions. If total fills for this project (now or in the future) exceed one acre of wetland
or 150 linear feet of stream, compensatory mitigation may be required as described in
15A NCAC 2H .0506 (h). This approval requires you to follow the conditions listed in
the attached certification and any additional conditions listed below.

The Additional Conditions of the Certification are:

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401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone]/ FAX [phone]/lntemet htto:/lh2o.enr.state.nc.us/ncwetlands

An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper

Yancey County:
Page 3 of6
August 22, 2005

4. No Sediment & Erosion Control Measures wIn Wetlands or Waters

Sediment and erosion control measures shall not be placed in wetlands or waters
to the maximum extent practicable. If placement of sediment and erosion control
devices in wetlands and waters is unavoidable, they shall be removed and the
natural grade restored within six months of the date that the Division of Land
Resources has released the project.

5. 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 the attached certificate of completion to the 401/Wetlands Unit,
North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC,
27699-1650.

6. Construction in this creek and disturbance within a 25-foot trout buffer should be
avoided during the January 1 to April 15 rainbow trout spawning period to avoid
adverse effects of sediment on eggs and larvae. However, Wildlife Resources
Commission will not object to construction of Natural Resources Conservation
Service "urgent and compelling" sites during the spawning period provided these
projects are, to the extent appropriate and practical, constructed by: (1) using flow
diversion structures such as sand bags, (2) placing large-sized rock toes and filter
cloth backing for stabilization sites before backfilling, and (3) excavating new
channel alignments in dry areas. Construction at the other non-"urgent and
compelling" sites should not occur during the spawning period to minimize the
potential adverse effects of multiple construction activities on trout resources in this
creek.

7. Sediment and erosion control measures must be implemented prior to construction
and maintained on the sites to minimize sediment in downstream areas. Seeding for
a temporary cover of wheat, millet, or similar annual grain or permanent herbaceous
cover should occur on all bare soil within five (5) days of ground disturbing activities
to provide long-term erosion control. The projects should be accomplished in stages
instead of leaving large tracts exposed to further storm events. Erosion control
matting should be used in conjunction with appropriate seeding on disturbed soils in
steep slope and riparian areas. Matting should be secured in place with staples,
stakes, or, wherever possible, live stakes of native trees. Straw mulch and tall
fescue should not be used in riparian areas. In addition, because of an anticipated
difficulty in establishing ground cover during the winter, reseeding should be
conducted, as necessary, in the spring-time with a native annual and perennial seed
mix with a temporary nursery crop of wheat, millet or other grain.

Yancey County:
Page 5 of6
August 22, 2005

14.lf pasture along the stream is to be used for grazing, a fence must be constructed
outside of the riparian zone and the stream to prevent livestock from entering these
areas.

15. Diffuse Flow

All constructed stormwater conveyance outlets shall be directed and maintained
as diffuse flow at non-erosive velocities through the protected riparian zones
such that it will not re-concentrate before discharging into a stream. If this is not
possible, it may be necessary to provide stormwater facilities that are considered
to remove nitrogen. This may require additional approval from this Office.

16. Riparian Zone Replanting

Replanting of vegetation within disturbed areas located within 30 feet of the
streambank associated with any land disturbing activity, repair, replacement
and/or maintenance must be done in a manner consistant with the Guidelines
for Riparian Buffer Restoration immediately following construction. (Please
see attached.)

45. Deed Notifications

Deed notifications or similar mechanisms shall be placed on all retained
jurisdictional wetlands, waters and protective woody riparian zones in order to
assure compliance for future wetland, water and buffer impact. These
mechanisms shall be put in place prior to impacting any wetlands, waters and/or
buffers approved for impact under this Certification Approval and Authorization
Certificate. A sample deed notification can be downloaded from the
401/VVetlands Unit web site at http://h20.enr.state.nc.us/ncwetlands. The text of
the sample deed notification may be modified as appropriate to suit to this
project.

17. Turbidity Standard

The turbidity standard of 10 NTUs (Nephelometric Turbidity Units) shall not be
exceeded as described in 15 A NCAC 28. .0200. Appropriate sediment and
erosion control practices must be used to meet this standard.

18. No Sediment and Erosion Control Measures in Wetlands

Sediment and erosion control measures shall not be placed in wetlands or waters
to the maximum extent practicable. If placement of sediment and erosion control
devices in wetlands and waters is unavoidable, they shall be removed and the
natural grade restored within six months of the date that the Division of Land
Resources or locally delegated program has released the project.

Triage Check List

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To:

Kevin Barnett, Asheville Regional Office

Project Name: Yancey County EWP
South Toe River, DSR 2004-44
DWQ #:05-1399
County: Yancey

Date: 07/28/05

60-day Processing Time: 7/25/05 to 9/23/05

From: Cyndi Karoly Telephone: [phone]

The file attached is being forwarded to you for your evaluation.
Please call if you need assistance.

D Stream length impacted
D Stream determination
D Wetland determination and distance to blue-line surface waters on USFW topo maps
Minimization/avoidance issues
D Buffer Rules (Neuse, Tar-Pamlico, Catawba, Randleman)
D Pond fill
D Mitigation Ratios
Ditching
D Are the stream and or wetland mitigation sites available and viable?
D Check drawings for accuracy
D Is the application consistent with pre-application meetings?
Cumulati ve impact concern
D
D
D

Comments: As per our discussion regarding revision of the triage and delegation processes,
please review the attached file. Note that you are the first reviewer, so this file will need to be
reviewed for administrative as well as technical details. If you elect to place this project on hold,
please ask the applicant to provide your requested information to both the Central Office in
Raleigh as well as the Asheville Regional Office. As we discussed, this is an experimental, interim
procedure as we slowly transition to electronic applications. Please apprise me of any
complications you encounter, whether related to workload, processing times, or lack of a "second
reviewer" as the triage process in Central had previously provided. Also, if you think of ways to
improve this process, especially so that we can plan for the electronic applications, let me know.
Thanks!

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I, Processing

1. Check all of the approval(s) requested for this project:
I:8J Section 404 Permit 0
o Section 10 Permit 0
I:8J 401 Water Quality Certification

Riparian or Watershed Buffer Rules
Isolated Wetland Permit from DWQ

2. Nationwide, Regional or General Permit Number(s) Requested: Nationwide 37

3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: 0

4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal ofPCN), complete
section VIII and check here: 0

5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: 0

II. Applicant Information

1. Owner/Applicant Information
Name: Michele Lawhem, County Manager
Mailing Address: 110 Town Square
Yancey County Courthouse, Room 11
Burnsville, NC 28714

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JUL 2 5 2005

DENR - WATER QUALITY
W'ETtANDS AND STORMWATER BRANCH
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: [e-mail]

2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Stuart A. Ryman
Company Affiliation: Altamont Environmental, Inc.
Mailing Address: 50 College Street, Asheville, NC 28801
Telephone Number: [phone] Fax Number: [phone]
E-mail Address:[e-mail]

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Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application:

Land use in the vicinity of the proposed project site consists of residential forestland and
agricultural uses. . This area of South Toe River was heavily impacted during Tropical
Storms Frances and Ivan. Severe streambank erosion threatens the stability of adjacent
properties and structures. In work area one the South Toe River has moved approximately
30 feet to the southeast and is threatening to breach two ponds. A tributary (Neal's Creek)
enters the South Toe River just upstream of work area one. In work area two, Neal's Creek
has breached its banks and is flowing overland, through a spring which serves as the
primary drinking source for a residential household, into the ponds, and is overflowing over
the extremely unstable bank of the pond into the South Toe River.

8. Describe the overall project in detail, including the type of equipment to be used:

This Pre-Construction Notification (PCN) form addresses two areas of EWP repair activities on
the South Toe River (see Figure 1) within the area known as DSR 44. Additional repairs within
DSR 44 will be addressed in a separate submittal.

The two areas are: (1) South Toe River (Figures 4 and 5) and (2) Neal's Creek (Figures 6 and
7). The specific issues and constraints of each element are discussed below.

Area 1: South Toe River

The South Toe River has migrated approximately 30 feet from its pre-jlood location. The inside
of the meander bend has accumulated significant amounts of rock. The outside of the meander
bend has eroded approximately 30 horizontal feet of bank. The eroded bank is approximately
15 feet high and separates the South Toe River from existing ponds. The ponds are in imminent
danger of breaching the bank.

In order to stabilize the bank and protect the threatened ponds, the South Toe River will be
moved back to its pre-jlood location. This will be accomplished using the following steps.

1. Install temporary sediment and erosion control.

2. Construct a temporary stream crossing.

3. Stage large boulders in a staging area at least 30 feet off the streambank.

4. Excavate a channel in the approximate location of the pre-jlood channel location and turn
the river into the constructed channel.

5. Place large boulders at the toe of the eroding slope.

6. Continue placement of large boulders to approximately 30feetfrom the base of the
streambank.

7. Build streambank at an angle of repose at maximum 2: 1 slope, with a target slope of 3: 1.

8. Construct rock vanes to reduce near bank stress.

9. Cover rock with topsoil and erosion control matting seed and plant.

3

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Equipment used to accomplish the above tasks includes: one or more 15 ton dump trucks, one
or more hydraulic track mounted excavators with thumb, one or more dozers with a six-way
blade; and chainsaws.

At all areas the work will proceed from downstream to upstream to reduce sediment loading.
All staging areas will be less than half an acre in size. Work will proceed as follows at each
work area (as applicable):

1. Flag the work limits.

2, Mark live trees and shrubs to be protected.

3. Construct temporary construction entrance/exits, where necessary.

4. Construct temporary stream crossing to access the north bank of the South Toe River.

5. Install sediment fence around staging areas.

6. At the end of each workday install temporary erosion control fabric or matting on exposed
soil and secure using removable stakes or sandbags.

7. During construction, place targe boulders at the toe of repaired streambanks where
necessary.

8, Fill and compact behind boulders. Cover with topsoil, install erosion control mat, and seed.
Permanent erosion control mats will be constructed of fiber or a coir fiber mixture fabric
for maximum erosion protection, vegetation establishment assistance, and for minimal
impact on wildlife.

9. Inspect and maintain repairs.

A site-specific engineering design based on a specific storm event was not completed because
the EWP program is not intended to fund stream restoration design or construction work.
Rather, the EWP program is designed to quickly stabilize eroding stream banks to prevent on-
going erosion, sedimentation and possible loss of property or life. Because natural channel
design methods are beyond the scope of the EWP program, published literature values were
consulted in order to specify the bank stabilization and erosion control materials and methods
described in this document. For example, we have specified that filter cloth will be placed
behind large rock usedfor streambank stabilization or for in-stream structures to increase the
stability of the repair measures and minimize sediment loading to the stream. Clean, large,
angular rock, coir logs, large woody material, and natural fiber erosion control mats will be
used for streambank stabilization.

Once site construction has ceased, the banks of the stabilized channel will be seeded with a
native floodplain seed mix and the high stress areas will be lined with erosion control (EC)
matting to ensure bank stability. Furthermore, sod matting will be grubbed on-site and used
(when available) to line the near bank regions of the constructed/stabilized channel to provide
immediate stability. Live stakes and matting staples will be used to secure the EC fabriclsod-
matting in these high stress areas. Broadcast seeding rates will be as specified from the local

5

v. Future Project Plans

Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.

No

VI, Proposed Impacts to Waters of the United States/Waters of the State

It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.

1. Provide a written description of the proposed impacts:

Proposed impacts include stream bank stabilization. Precautions will be taken to keep heavy
equipment out of the stream channel except where absolutely necessary to install bank
stabilization measures. Work will be conducted in the dry to the extent practicable. Sediment
and erosion control measures, including sand bags, silt fences and reseeding, will be utilized to
minimize sedimentation.

2. Individually list wetland impacts below:

There will be no wetlands impacted at this site.

Wetland Impact Area of Located within Distance to
Site Number Type of Impact* Impact lOO-year Floodplain** Nearest Stream Type ofWetland***
(indicate on map) (acres) (yes/no) (linear feet)

*

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.

7

*

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.

5. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): 0 uplands 0 stream 0 wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): N/A

Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A

Size of watershed draining to pond: N/A

Expected pond surface area: N/A

VII. Impact Justification (Avoidance and Minimization)

Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.

On behalf of Yancey County, Altamont will provide contractors engaged in the implementation of
this work both written and verbal instructions of all impact avoidance statements provided below.
All heavy equipment will be kept out of the stream channel during stream bank stabilization and
stream relocation work, except where absolutely necessary to install bank stabilization measures.
Disturbance of channel bottom and banks and equipment access areas shall be held to the
minimum necessary to allow for bank stabilization and debris removal sufficient to restore the
hydraulic capacity of the stream channel. Temporary grass cover shall be planted on all bare soil
within 5 days of ground disturbing activities. Provided landowners give permission, herbaceous
and woody shrub and tree vegetation will also be installed on the riverbank upon completion of
bank stabilization work Yancey County will provide a site manager to routinely inspect and
supervise contractor work to help ensure impact avoidance instructions are beingfollowed

VIII. Mitigation

DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to.
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.

9

Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ~ No D

If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEP AlSEP A)?
Note: If you are not sure whether a NEPAlSEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes D No ~

If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEP A or SEP A final approval letter.
Yes D No D

x. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)

It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.

Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify)?
Yes D No ~ If you answered "yes", provide the following information:

Identify the square feet and acreage of impact to each zone of the riparian buffers. Ifbuffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.

Zone* Impact Multiplier Required
(square feet) Mitigation
I 3
2 1.5
Total

*

Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.

If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property,. Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.

11

YANCEY COUNTY

Michele P. Lawhem, Count;y Manager

John Renfro, Chairman
Dean Hicks, Commissioner
Blaine Whitson, Commissioner

* County Courthouse, Room 11 · Bumsville, North Carolina 28714
PHONE: [phone] · FAX: [phone] . EM AIL: [e-mail]

November 10, 2004

Altamont Environmental, Inc.
50 College Street
Asheville, North Carolina 28801

Stu,

At the regular monthly meeting ofthe Yancey County Board of Commissioners last
evening, the enclosed contract for professional services was executed, relative to EWP
Section 216 work. Pursuant to, or in the spirit of the further intent of this contract, this
Yancey County Local Government hereby authorizes Altamont Environmental, Inc. to
sign and execute all necessary permits and coordinate communications with said
regulatory agencies.

Ifthere should be any questions about the above, please feel free to call me at any time.

mielY,

V "~~hern

Yancey County Manager
Work: 828/682-3971; Cellular 828/284-0746

TABLE 1
AFFECTED PARCELS
SOUTH TOE RIVER
DSR 2004-44 SPARKS

YANCEY COUNTY, NC

MAPID '. PIN . OWNER propert '\ ADDRESS CITY STATE ZIP exigency? ,CHANNEL ' .STEAMBANK ROCK, WOODY
........ yS~~ RELOCATION STABILIZATION DEBRIS DEBRIS
I.... .,., "
", . . (acres) . .' I . . ..... . .. .' ... REMOVAL REMOVAL
56 74400636316000 SPARKS PHIL HOWARD & RENEE lINDENAUX 0.76 1978 SOUTH TOE RIVER BURNSVILLE NC 28714 Y . . . .
7 74400635341000 MCNEILL BARBARA 0.5 P O. BOX 674 MARION NC 28752 Y . . . .
8 74400623994000 WILSON ROBY M ETUX ETAL 4,91 11978 STATE HWY 80 S BURNSVILLE NC 28714 y . . . .
10 74400636045000 BOYLE VIRGINIA & JEAN 0.42 6 EDWIN PLACE ASHEVILLE NC 28801 Y . . . .
11 74400637036000 CASSIDY JEAN M & VIRGINIA A BOYLE 0.66 6 EDWIN PLACE ASHEVILLE NC 28801 Y . . . .
12 74400627922000 ELLIS HAROLD D & SANDRA S 0.4 116 CAROLINA AVE BURNSVILLE NC 28714 Y . . . .

NVIRONMENTAL, ,
ONTE

Property Boundary
", . Surface Water
~ Roads

Figure 2

South Toe River DSR 2004-44 Sparks

EWP Project Area

Yancey County, North Carolina
200 0 200 Feet

I I

ALTAMONT ENVIRONMENTAL, INC.

I ENGINEERING & HYDROGEOLOGY I

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] F AC. 828.281.3351
www.altamontenvironmental.com

01-15-05

Legend

Figure 3 .

South Toe River DSR 2004-44 Sparks

EWP Project Area

Yancey County, North Carolina
200 0 200 Feet

I I

ALTAMONT ENVIRONMENTAL, INe,

Property Boundary

I ENGINEERING & HYDROGEOLOGY I
50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAC.828.281.3351
www.altamontenvironmental.com

,'''~ /~ Surface Water

.~ Roads

01-15-05

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Figure 4
Work Area 1
South Toe River
DSR No. 2004-44 Sparks
Yancey County, North Carolina

ALTAMONT ENVIRONMENTAL, INC.

ENGINEERING & HYDROGEOLOGyl

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAC.828.281.3351
www.altamontenvironmental.com

ALTAMONT ENVIRONMENTAL, INC.

IENGINEERING I!c HYDROGEOLOGYI
50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] F AC.828.28 1.335 1
www.altamontenvironmental.com

DRAWN BY: PAUL Dow
PROJECT MANAGER: STUART RYMAN
CLIENT: YANCEY COUNTY
DATE: 07/15/05

NOT TO SCALE

PROPOSED BANK
REPAIRS
SOUTH TOE RIVER-AREA I
EWP 2004-44 SPARKS
YANCEY COUNTY, NC

'"

4a

FILE PATH: P:\YANCEV-EWPIDSRsIDSR 44 - SOUTH TOEISPARKS\ 44-SPARKS CONCEPTUAL DESIGN.DWO

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Figure 5
Work Area 1
South Toe River
DSR No, 2004-44 Sparks
Yancey County, North Carolina

L TAMONT ENVIRONMENTAL, INC.

ENGINEERING & HYDROGEOLOGyl

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAC.828.281.3351
www.altamontenvironmental.com

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DRAWN BY: PAUL Dow
PROJECT MANAGER: STUART RYMAN
CLIENT: YANCEY COUNTY
DATE: 07/15/05

NOT TO SCALE

PROPOSED BANK
REP AI RS
SOUTH TOE RIVER-AREA I
EWP 2004-44 SPARKS
YANCEY COUNTY, NC

FIGURE

ALTAMONT ENVIRONMENTAL, 1Ne.

(ENGINEERING & HYDROGEOLOGYI
50 COLLEGE STREET, ASHEVILLE, NC 2880 I
TEL. [phone] F AC. 828.28 1.3351
www.altamontenvironmental.com

5a

FILE PATH; P;\YANCEy-EWP\DSRs\DSR 1.1. - SOUTH TOE\SPARKS\ I.I.-SPARKS CONCEPTUAL DESIGN.DWG

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Figure 6
Work Area 2
South Toe River
DSR No. 2004-44 Sparks
Yancey County, North Carolina

ALTAMONT ENVIRONMENTAL, INC.

ENGINEERING & HYDROGEOLOGyl

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAc.828.281.3351
www.aItamontenvironmental.com

ALTAMONT ENVIRONMENTAL, INC.

IENGINEERING de HYOROGEOLOGYI
50 COLLEGE STREET. ASHEVILLE, NC 28801
TEL.[phone] FAC.828.281.335I
www.altarnontenvironmental.com

DRAWN BY: PAUL Dow
PROJECT MANAGER: STUART RYMAN
CLIENT: YANCEY COUNTY
DATE: 07/15/05

NOT TO SCALE

"

PROPOSED BANK
REPAIRS
SOUTH TOE RIVER-AREA 2
EWP 2004-44 SPARKS
YANCEY COUNTY, NC

FIGURE

6a

FILE PATH: P:IYANCEY-EWPIOSRsIOSR 44 - SOUTH TOEISPARKSI 44-SPARKS CONCEPTUAL OESIGN.OWG

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Figure 7
Work Area 2
South Toe River
DSR No. 2004-44 Sparks
Yancey County, North Carolina

ALTAMONT ENVIRONMENTAL, INC.

ENGINEERING & HYDROGEOLOGyl

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAC.828.281.3351
www.altamontenvironmental.com

ALTAMONT ENVIRONMENTAL, INC.

IENGINEERING & HYDROGEOLOGYI
50 COLLEGE STREET, ASHEVILLE, NC 2880\
TEL.[phone] F AC.828.281.335\
www.a1tamontellvironmental.com

DRAWN BY: PAUL Dow
PROJECT MANAGER: STUART RYMAN
CLIENT: YANCEY COUNTY
DATE: 07/15/05

NOT TO SCALE

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PROPOSED BANK
REPAIRS
SOUTH TOE RIVER-AREA 2
EWP 2004-44 SPARKS
YANCEY COUNTY, NC

FIGURE

7a

FILE PATH: P:IYANCEY-EWPIDSRsIDSR 44 - SOUTH TOEISPARKSI 44-SPARKS CONCEPTUAL DESIGN.DWG

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24" FIELDSTONE
BOULDERS

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<C
f

5' MIN.

ILL MUST BE TIED IN TO
~ BANKFULL ELEVATION
FOOTER

TYPICAL J HOOK AND
CROSS VANE DETAILS

EMERGENCY WATERSHED PROTECTION

SOURCE: APPLIED ECOLOGICAL SERVH

YANCEY COUNTY, NC

FIGURE

8

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Practice Standards and Specifications

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Stone over
filter cloth

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Surface flow
diversion

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Filter cloth

Temporary access

Figure 6.70a A well constructed ford offers little obstruction to flow while safely handling heavy loadings.

Design Criteria

In addition to erosion and sedimentation control, structural stability, utility, and
safety must also be taken into consideration when designing temporary stream
crossings. Bridge designs, in particular, should be undertaken by a qualified en-
gineer.
The anticipated life of a temporary stream crossing structure is usually
considered to be 1 year or less. Remove the structure immediately after it
is no longer needed.

As a minimum, design the structure to pass bankfull flow or peak flow,
whichever is less, from a 2-yr peak storm, without over topping. Ensure
that no erosion will result from the lO-yr peak storm.

Ensure that design flow velocity at the outlet of the crossing structure is
nonerosive for the receiving stream channel (References: Outlet Protec-
tion).

. Consider overflow for storms larger than the design storm and provide a
protected overflow area.

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Erosion and Sediment Control Planning and Design Manual by the North Carolina Department of Environment and Natural Resources
6.70.3

AL TAMONT ENVIRONMENTAL, INC.

ENGINEERING & HYDROGEOLOGyl

50 COLLEGE STREET, ASHEVILLE, NC 28801
TEL. [phone] FAC.828.281.3351
www.altamontenvironmental.com

Ms. Cyndi Karoly
Division of Water Quality
401 Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650

20051399

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JUL 2 5 2005

July 21,2005

OENR - WATER Q~~~rWK:H
WETlANDS N-lO STQRMV.'A '

Subject:

Yancey County EWP Project Pre-Construction Notification Applications for Exigency
Site South Toe River DSR 44-Sparks

Dear Ms. Karoly:

Enclosed is the South Toe River DSR 44-Sparks EWP exigency site application for Section 404
nationwide permit 37, and corresponding DWQ 401 water quality certification. Exigency work applied
for in this permit includes streambank stabilization and debris removal. Mr. Stuart Ryman has signed the
application as an authorized agent for Yancey County. A letter of authorization is included.
Additionally, we have sent one copy of the enclosed permit application directly to Mr. Kevin Barnett in
the Swannanoa office, Mr. Scott McLendon of the U.S. Army Corps of Engineers, Mr. Brian Cole in the
Asheville U.S. Fish and Wildlife Service office, and Mr. Dave McHenry in the Waynesville N.C.
Wildlife Resources Commission office.

Altamont appreciates your assistance with this application. If you would like additional information,
please contact the undersigned.

Sincerely,

-

Enclosures:

PCN - South Toe River DSR 44-Sparks
Letter of Authorization

CC:

Michele Lawhern - Yancey County Manager (transmittal letter only)
Cliff Vinson - District Conservation Officer NRCS (transmittal letter only)
Kevin Barnett - NCDENR Division of Water Quality (with attachments)

P:\Yancey-EWP\Correspondence\DWQ pennit cover letter-Karoly-DSE 44-Sparks.doc