HomeMy WebLinkAbout20061830 Ver 1_401 Application_20061106k
MULKEY
ENGINEEi2S & CONSULTANT'S
PO Box 331 27
RALEIGH, NC 27636
PHONE: 91 9-851 -1 91 2
FAx: 9 1 9-8 5 1- 1 9 1 8
LETTER OF TRANSMITTAL
To: NCDENR Division of Water Quality Date: November 21, 2006
Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Re: ATTN: Mr. Ian McMillan
Job No.: 2006232.00
Hooker Falls -Little River Stream
Restoration Project: Permitting
I am sending you the following item(s):
COPIES DATE NO. DESCRIPTION
5 11/22/06 - Section 401/404 Permit Application Package Cover Letter
5 - - Figure No. 1 Project Vicinity
5 - - Figure No. 2 Jurisdictional Waters of the U.S.
5 - - Figure No. 3 Transylvania County Soil Survey Map
5 - - Pre-Construction Notification (PCN) Application Form
5 11/15/06 - 11" x 17" Permitting Plans
5 11/09/06 - Hooker Falls -Little River Stream Restoration Project Erosion
Control Narrative and Construction Sequence
These are transmitted as checked bel
® As requested
® For approval
® For review and comment
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Remarks:
Copy to: File (Mulkey)
File (NCDFR)
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NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Tom Gerow, Jr.
N.C. Reg.For.# 1510
BMP Forester
Forestry NonPoint Source Unit
"C / /l~fiL.~~(
North Carolina Division of
Forest Resources
1616 Mail Service Center
Raleigh, NC 27699-1616
Office: (919) 733-2162 ext. 246
Cell: (919) 218286
Fex:(919)715.6317
E-mail: Tom.A.Gerow~ncmail.net
www.dfr.state.nc.us
z131cs fns
NFES 1336
PERSON RECEIVING GENERAL MESSAGE KEEPS THIS COPY
DENR-OC2 DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
11/6/97 JOURNAL ADJUSTMENT CODE SHEET Page
DGCUMENT ID: 'I 6 2 5 BATCH TOTAL: $
1 of
ENTRY TYPE: BUDGET CODE: 1 4 3 0 0
JOURNAL VOUCHER ~ APP CODE: m DEPOSIT NO.
CASH TRANSFER x^ TOTAL DEBITS: $ 4 7 5 0 0
BUDGET CREATION ~ GL EFFECTIVE DATE: 1 1 2 2 0 6 TOTAL CREDITS: $
ENCUMBRANCE ADJ ~ (current month)
COMMITMENT ADJ ~ DATA TYPE CODE: ~ CLOSED PERIOD ADJUSTMENT:
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D
COMPANY ACCOUNT CENTER AMOUNT
#
CR DESCRIPTION RULE
1 16 0 2 4 3 5 1 0 0 0 9 5 2 3 4 1 4 7 5; 0 0 CR
2 16 0 1 5 3 3 9 0 0 1 2 1 0 2 4 2 6 4 7 5; 0 0 DR
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JUSTIFICATION: This is fora 401 Wetlands Certification Application to DWQ from DFR Prepared by: V.Tillotson ~ Date: ~~ 0
to support the Hooker Falls Stream Restoration Project Approved by: ~~~p'~ Date: (~ oL
INSTRUCTIONS: Preparer must complete the following: Type of Entry, Page, Budget Code, Deposit No. (if applicable), Total Debits, Total Credits, Line Number, Company,
Account, Center, Amount, DR/CR, Description (cannot exceed 30 characters), Prepared By, Date and Justification. All forms must be reviewed and approved by authorized individu
in the preparer's division. Every line must be valid and funds must be available prior to submitting the entry to be keyed. Combine similar Company, Account, and Centers on
one line.
'Hold Date Release Date "Unavailable Funds Override Approval Entered By: Date
P~SYME~~T
RECEIVED ~ ~..~ ~- K E Y
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US Army Corps of Engineers ~1 j~ ~ ~j
Asheville Regulatory Field Office p ~ ~j '~'
151 Patton Avenue, Room 208 ~ ZQ~~
Asheville, North Carolina 28801-5006 ~~~ `~+
ATTENTION: Ms. Lori Beckwith DE~~psY~~R~ RCN
USACE Transylvania County Regulatory Representative
DATE: November 22, 2006 2 0 0 6 1 8 3 0
SUBJECT: Hooker Falls Stream Stabilization and Restoration, Transylvania County,
North Carolina
Please find attached the Pre-Construction Notification (PCN) Application Form for
the referenced project. The North Carolina Division of Forest Resources (NCDFR) has
proposed a stream stabilization and restoration project within the DuPont State Forest along
the Little River in Transylvania County. This project is located approximately 6.5 miles from
Brevard and consists of two distinct areas on the river. The first area is located
approximately 0.10 mile upstream of Hooker Falls at the site of an existing natural gas line
easement. The second area is located at the base of Hooker Falls. This work will result in
398 linear feet (7,772 square feet) of unavoidable impacts to the Little River. The anticipated
let date for this project is the end of Apri12007.
The purpose of this proposed project is to cease the continued erosion along the
banks of the Little River. These two locations were chosen because of the severe nature of
erosion at these locations due primarily to significant public use. The first site is a very
popular location for fishing, sun bathing, and picnicking due to its open nature and relatively
shallow water because of a large rock outcropping. The right bank has witnessed severe
erosion from pedestrian traffic along the natural gas easement which provides easy visitor
access to this area from Hooker Falls Road. Armoring of the right bank through use an
engineered modified single wing deflector is necessary. Also proposed at this location is a
"J-hook rock vane" structure which will protect the left bank while providing habitat for
existing trout populations. The second site is perhaps an even more popular location for
visitors to the DuPont Sate Forest due to its position immediately downstream of Hooker
Falls. Uses of the shoreline at this location include photography, fishing, sun-bathing, and
picnicking. The heavy foot traffic along with severe storms during the past five years has
caused severe erosion and the loss of a significant portion of shoreline. There are no
indications that the current rate of erosion is slowing; therefore, a large modified single wing
deflector has been proposed along the right bank. This structure will cease the erosion, as
well as providing an area that can be walked on and enjoyed by the many park visitors. The
left bank at this location has an extremely steep slope and will not require bank stabilization
or stream restoration structures.
The existing Hooker Falls Road currently used exclusively for foot traffic will
provide the necessary equipment access to these two locations. Though the NCDFR
currently does not allow vehicular traffic on this road, the access road is a 10 foot gravel
road which can handle the equipment traffic necessary to construct the proposed stream
structures. This equipment traffic will involve a bucket excavator and dump trucks. It
MULKEY INC. 6750 TavoN Rono CARY, NC 27511 PO Box 33127 RALEIGH. NC 27636 PH: 919-851.1972 Fox: 919-851-7978 WWW.MULKEVINC.COM
should be noted that a significantly steep area along Hooker Falls Road near the Hooker
Falls overlook has been paved. The portion of the access road immediately beyond the
Hooker Falls overlook will need to be upgraded to support the proposed equipment traffic.
All disturbed areas will be planted with temporary and permanent seeding, and will also be
mulched. In addition, restored sections of the stream channel will be further stabilized
through the installation of coin fiber erosion control matting. Native vegetation (both
seedlings and live staking) will be installed immediately following construction
The project is located within the French Broad River subbasin 04-03-01. There is
only one jurisdictional stream within the project study area, the Little River. The Little River
is depicted on the Brevard, NC topographic quadrangle map and the Transylvania County
soil survey. The Little River flows into Cascade Lake approximately 0.5 mile northwest of
the project area. NCDWQ has assigned a best usage classification of "C; Tr" to the Little
River and a stream index number is 6-38-(1). The USGS hydrologic unit is 06010105. There
is another small perennial unnamed tributary (UT) to the Little River that empties into the
Little River near the J-hook structure at the natural gas easement site. This stream is not
proposed to be directly impacted. Laurel Creek located approximately 1 mile west of
Hooker Falls has been classified by NCDWQ as high quality waters (HQW); however, this
stream empties into Cascade Lake approximately 0.75 miles downstream of Hooker Falls.
There are no outstanding resource waters (ORW), high quality drinking water supply waters
(WS-I and WS-II), or 303(d) listed streams within aone-mile radius of the project study area.
The United States Fish and Wildlife Service (USFWS) has identified five Endangered
(E) species (Carolina northern flying squirrel, Appalachian elktoe, oyster mussel, mountain
sweet pitcherplant, and spreading avens), two Threatened (I~ species (small whorled pogonia
and swamp pink), and one species Threatened due to a similarity of appearance (T[S/A])
(bog turtle) fox which occurrences have been recorded in Transylvania County. The land
that will be impacted as a result of this project consists of a perennial mountain stream, with
an existing maintained natural gas line easement, and a gravel access road. Suitable habitat is
present for Appalachian elktoe, oyster mussel, and small whorled pogonia.
Suitable habitat fox the Carolina northern flying squirrel (Glaucomy.c .cabrinu.r coloratu.r)
consisting of forested areas above 4,500 feet msl is not present in the project study
area. NCNHP does not list any occurrences of the Carolina northern flying squirrel
within a one mile radius of the project area. This species will not be impacted as a
result of project construction.
• The bog turtle (Clemmyc muhlenbergia) is listed as T (S/A) due to its similarity of
appearance to another rare species that is listed fox protection. T (S/A) species are
not subject to Section 7 consultation of the Endangered Species Act. A biological
conclusion for this species is not required. In addition, suitable habitat consisting of
mountain bog areas is not present within the project study area.
• Suitable habitat for the Appalachian elktoe (Ala.rmidonta raveneliana) consisting of
shallow, medium-sized creeks and rivers with cool, well-oxygenated; moderate to fast
flowing water is present in the project study area. The main stem of the Little River
from Cascade Lake Power Plant, downstream to its confluence with the French
Broad River has been designated as critical habitat for the Appalachian elktoe.
However, NCNHP does not list any occurrences of the Appalachian elktoe within
the Little River drainage basin above the Cascade Lake dam, nor does NCNHP list
the freshwater mussel within a one mile radius of the project area.
• Suitable habitat for the oyster mussel (Epioblarma cap.raeforrni.r) consisting of fast
flowing water less than 3 feet deep at riffles with a sand and gravel substrate is
present within the project study area. NCNHP does not list any occurrences of the
oyster mussel within a one mile radius of the project area.
• Suitable habitat for the mountain sweet pitcherplant (Sarracenia rubra .crp. jone.riz)
consisting of depression bogs and cataract bogs in the Southern Appalachian
Mountains is not present within the project study area. NCNHP does not depict any
occurrences of the mountain sweet pitcherplant within a one mile radius of the
project study area. Proposed project construction will not impact this species.
• Suitable habitat for the small whorled pogonia (Lrotria medeoloide.r) consisting of open,
dry deciduous woods with acid soils and rich cove hardwoods is present in the
project study area. NCNHP does not list any occurrences of the small whorled
pogonia within a one mile radius of the project area.
• Suitable habitat for spreading avens (Geum radiatum) consisting of high-elevation
cliffs, outcrops, steep slopes, and on grassy balds near summit outcrops which are
exposed to full sun is not present in the project study area. NCNHP does not list
any occurrences of spreading avens within a one mile radius of the project area.
Proposed project construction will not impact this species.
Suitable habitat for swamp pink (Helonia.r bullata) consisting of Appalachian mountain
bogs, swampy forests bordering small streams, wet meadows and spring seepage
areas is not present in the project study area. NCNHP depicts one population of
swamp pink approximately one mile south of the project study area. This population
is located along an unnamed tributary to the Little River immediately downstream of
a large pond associated with the DuPont Forest Power Plant. The proposed project
will not impact this species.
Following your review and concurrence with the proposed action, please issue a
NWP 27 that will authorize construction activities associated with stream stabilization and
restoration activities at the Hooker Falls site. If you have any questions or comments
concerning the project, please contact me at (919) 858-1804. Thank you fox your assistance.
Sincerely,
`~J~~~
Harold M. Brady
Staff Scientist
Mulkey, Inc.
Attachments
PCN
Figure 1 Project Vicinity
Figure 2 Jurisdictional Waters of the U.S. (w/ aerial overlay)
Figure 3 Transylvania County Soil Survey Map
Permit Drawings
Erosion Control Narrative and Construction Sequence report
cc: (5 copies)
Mr. Ian McMillan, NCDWQ-Wetlands Unit
(single copies)
Mr. Kevin Barnett, NCDWQ -Asheville Regional Office
Mr. Tom Gerow, Jr., Division of Forest Resources
Mr. Scott Hunt, Mulkey, Inc.
d ~ ~ __
[~~.~;EIVEU 2 0 0 6 1 8 3 0
Office Use Only: Form Version March OS
USAGE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ^ Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested:
NWP 27
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ^
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: ^
II. Applicant Information
1. Owner/Applicant Information
Name: North Carolina Division of Forest Resources
Forestry Non-Point Source (NPS) Unit
Contact: Tom Gerow, Jr.,~roject manager
Mailing Address: 1616 Mail Service Center
Ralei~h_ NC 27699-1616
Telephone Number: (919) 733-2162 ext. 246 Fax Number: (919) 715-6317
E-mail Address: tom.a. eg row cnr,ncmail.net
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:
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 1 of 9
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Hooker Falls -Little River Stream Restoration Project
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): North Carolina Forest Service (DuPont State
Forest)• PIN# 9513-39-6248-000.
4. Location
County: Transylvania Nearest Town: Brevard
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.):
From Asheville take I-26 East/US-74 East to Exit 40. Follow NC-280 South toward Brevard
for approximately 16.0 miles. Turn left onto US-64 and continue on US-64 for
approximately 4.0 miles. Make a right onto Crab Creek Rd. toward Little River community.
Turn right onto DuPont Rd. and travel for approximately 3.0 miles to the Hooker Falls
visitors parking lot (located immediately before the bridge over the Little River). Follow the
Hooker Falls trail approximately 0.10 mile to the gas line crossing and continue for another
0.15 mile to the falls.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35° 12' 06.26" °N 82° 37' 24.52" °W
6. Property size (acres): 4,042 acres
7. Name of nearest receiving body of water: Little River
8. River Basin: French Broad
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
Page 2 of 9
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The property is currently forested with a natural a
easement traversing the property. There is a maintained one-lane paved/gravel access road
that is blocked for traffic and used as a major trail to Hooker Falls. A large ravel parking
area is located along DuPont Road and serves as the trail head. There are several areas of
picnicking and recreation facilities on the property, especially near the Hooker Falls Road.
Undeveloped forest land adjoins the subject property in all directions. Cascade Lake is
present approximately 1 mile northwest and downstream of Hooker Falls and a substation is
present approximately 1 mile south and upstream of Hooker Falls.
10. Describe the overall project in detail, including the type of equipment to be used: Stream
restoration and riverbank stabilization are proposed at two locations along the Little River
near Hooker Falls. The first area is located at a natural gas line easement near an old fiord.
Work within this area will involve construction of a "J-hook" stream restoration structure
along the left bank and a modified sin lg e wing deflector alon tg_ he right bank. The second
area is located immediately downstream of large pool at the base of Hooker Falls. Work in
this area will involve the construction of a modified sin lg e wing deflector alon tg he right
bank. Standard stream restoration construction equipment including an excavator and a dump
truck or front-end loader will be used to convey the rock to the stream and construct the
structures in the stream.
11. Explain the purpose of the proposed work: To stabilize and reinforce the stream banks that
have demonstrated severe erosion and direct the flow of the water within the stream channel
by use of natural channel design. This will avoid any continued erosion along the stream
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. There have been no previous environmental permits (applied for or
otherwise) associated with the Little River within the subject property that the North Carolina
Division of Forest Resources has any knowledge of.
Page 3 of 9
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 future stream restoration activities are antic~ated to occur once this proposed work is
completed.
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. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should 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: These proposed stream restoration
and bank stabilization activities will impact 398 linear feet of channel and will disturb
7,772.0 square feet of stream channel.
2. Individually list wetland impacts. Types of 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.
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
(yes/no) Distance to
Nearest
Stream
(linear feet) Area of
Impact
(acres)
Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property: None within the
project study area.
Page 4 of 9
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Stream Impact
Number
(indicate on ma)
Stream Name
Type of Impact
Perennial or
Intermittent? Average
Stream Width
Before Im act Impact
Length
(linear feet) Area of
Impact
(acres)
1 Little River Stabilization Perennial 60 feet 100 0.12
2 Little River Stabilization Perennial 100 feet 298 0.06
Total Stream Impact (by length and acreage) 3981inear
feet 0.18
acres
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact
Site Number
(indicate on ma)
Name of Waterbody
(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc.) Area of
Impact
(acres)
Total Open Water Impact (acres)
6. List tl
ie cumulative impact to all Waters of the U.~. resulting from the project
Stream Impact (acres):
Wetland Impact (acres):
Open Water Impact (acres):
Total Impact to Waters of the U.S. (acres):
Total Stream Impact (linear feet): 398
7. Isolated Waters
Do any isolated waters exist on the property? ^ Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
Page 5 of 9
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
Size of watershed draining to pond:
Expected pond surface area (permanent pool):
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.
The reach of the Little River associated with the project experiences a large volume of
pedestrian traffic throughout the year. Both areas where the proposed stabilization and
restoration are planned have experienced relatively severe bank erosion during storms associated
with recent major hurricanes. The maiority of the streambank erosion has occurred along the
right banks at both sites. This accelerated erosion is apparently attributed to the lack of sufficient
existin riparian vegetation at these locations. The bulk of the pedestrian traffic is limited to the
existing_gravel access road, Hooker Falls Road, adjacent to each of the sites. Both sites, however
are, popular access points for various activities, including fishing, kayakin ,photography,
sunbathing, and swimming. Without these stabilization and restoration activites these areas will
continue to erode as well as the relatively undisturbed areas immediately upatream and
downstream of these locations.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
Page 6 of 9
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strm~ide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, .conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
(919) 715-0476 to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount ofNon-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
No compensator mitigation is required for a NWP 27.
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ^
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at (919) 733-5083 to review current thresholds for environmental documentation.
Yes ^ No
Page 7 of 9
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (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.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ^ No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
I 3 (2 for Catawba)
2 1.5
Total
* Zone 1 extends out 30 feet perpendiculaz from the [op of the neaz bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. This proposed project is not located within
a river basin that requires basinwide NCDWQ stream buffers.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
Stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level.
There is currently no impervious surface within the proposed DuPont Forest site. No
permanent impervious surface is anticipated to be generated from the construction for these
stream structures.
Page 8 of 9
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
No wastewater is anticipated to be produced from this proposed stream stabilization and
restoration project
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Isthis anafter-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http:/lh2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
No negative cumulative impacts are anticipated to occur as a result of this proposed stream
restoration project. The goal of this project is to improve water quality along the Little River.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
Best mana eg ment practices and construction moratoriums concerning trout waters will be
strictly followed. NCWRC construction moratoriums are from October 15 to April 15.
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
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_AMULI~E~`
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Hooker Falls -Little River Stream Restoration Project
DuPont State Forest
Transylvania County, NC
Erosion Control Narrative
And Construction Sequence
Mulkey Project Number: 2006232.00
Project Engineer: William Scott Hunt, III P.E.
Date: 11 /09/06
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Hooker Falls -Little River Stream Restoration Project
DuPont State Forest
Transylvania County, NC
General Description
The proposed Hooker Falls -Little River Stream Restoration Project (project) is located
entirely within the limits of the DuPont State Forest in Transylvania County, near Brevard,
North Carolina. Mulkey, Inc. (Mulkey) was contracted through the North Carolina
Department of Environment and Natural Resources, Division of Forest Resources (DFR) to
provide engineering services for this project, including design and construction management.
The proposed design for this project is based on natural channel design methodologies and
is intended to correct or stabilize several areas of existing streambank erosion.
The project is located along the Little River at two non-contiguous sites: the Gas Line Site,
which is upstream of Hooker Falls, in the vicinity of the existing PSNC subterranean utility
crossing; and the Hooker Falls Site, which is located immediately downstream of Hooker
Falls. The drainage area at the Hooker Falls Site is approximately 35.5 square miles. The
reach of the Little River associated with the project sites experiences a large volume of
pedestrian traffic throughout the year. Both sites have experienced relatively severe bank
erosion during storms associated with recent major hurricanes. The majority of the
streambank erosion has occurred along the right banks at both sites. This accelerated
erosion is apparently attributed to the lack of sufficient existing riparian vegetation at these
locations. The bulk of the pedestrian traffic described above is limited to the existing gravel
access road, Hooker Falls Road, adjacent to each of the sites. Both sites, however are,
popular access points for various activities, including fishing, kayaking, photography,
sunbathing, and swimming.
Goals and Objectives
The DFR has the following goals and objectives for this stream restoration project:
• Correct or stabilize the areas of existing streambank erosion at the sites utilizing natural
channel design methodologies;
• Reduce the rate of streambank erosion at the sites, consequently improving water quality;
• Improve in-stream habitat;
• Strategically control some of the pedestrian access at both sites; and
• Provide an opportunity within the DuPont State Forest to educate the general public
about stream restoration.
Proposed Restoration
As noted above, the proposed restoration design for both sites is based on natural channel
design methodologies. The right bank at both the Gas Line Site and the Hooker Falls Site
will be restored through the construction of modified single wing deflectors. These
deflectors will be modified through construction of rock sills to create "cells". These cells
are intended to prevent washout or failure of the structure during large storm events. The
cells will also be arranged to permanently facilitate and direct equipment and pedestrian
access at both sites. Future equipment access will be facilitated and directed by terracing the
deflectors down naturally to the right edge of water. Pedestrian access will be facilitated and
directed by raising some of the cells slightly to encourage traffic within desired corridors
across the structure. All of the rock cells will be backfilled to final grade with gravel tailings.
The raised cells adjacent to the pedestrian access areas will ultimately be planted with
permanent native species vegetation by the DFR after construction. These raised cells will
be backfilled to within two feet of final grade with gravel tailings, with the remaining backfill
to grade consisting of topsoil excavated on site during construction. A rock j-hook will be
constructed along the left bank at the Gas Line Site. This structure is proposed to repair the
minor erosion along the left bank, to prevent future erosion at this location, as well as to
provide additional in-stream habitat. All of the rock and gravel tailings used for the
construction of the in-stream structures for this project will come from on-site or will be
supplied from one or both of the quarries owned by the DFR and located within the
DuPont State Forest.
Erosron Control
Erosion control during construction operations will be provided through the use of silt
fence, tree protection fence, a gravel construction entrance, the existing gravel access roads,
Holly Road and Hooker Falls Road, as well as the existing DFR equipment staging area at
Holly Road. A gravel construction entrance will be installed at the entrance to the existing
gravel parking lot at Staton Road (SR 1593). All construction access will utilize the existing
gravel access roads, Hooker Falls Road and Holly Road. The section of Hooker Falls Road
at the east end of the project will be improved to a ten-foot wide gravel section by the DFR
prior to the beginning of construction. All construction materials will be staged at the
existing DFR equipment storage area at Holly Road. The proposed area of disturbance is
0.85 acre, and is limited to the actual work areas where the in-stream structures will be
installed, the spoil areas at these locations, and the staging area at the existing DFR
equipment storage area. Silt fence will be installed at the down slope end of the Hooker
Falls Site, as well as surrounding the staging area. A stream pump around system is not
proposed because of the large drainage area (approximately 35.5 square miles). Mature
vegetation outside of channel construction is to be left undisturbed, to the maximum extent
practicable. All disturbed areas will be planted with temporary and permanent seeding, and
will also be mulched. In addition, restored sections of the stream channel will be further
stabilized through the installation of coin fiber erosion control matting.
As described above, the project has been divided up into two separate sites or work
locations. Construction of the project will be carried out in four phases to ensure adequate
implementation of erosion and sedimentation controls, minimization of sedimentation,
channel stability, and maximum vegetation survival. The proposed construction sequence
outlining these four phases is included below:
PHASE I
1. Staging areas, stockpile areas, the construction entrance, limits of silt fencing, and existing
access roads will be identified and located as shown in plans.
2. Install the construction entrance.
3. Contractor will begin stockpiling materials in designated staging areas.
4. Install silt fencing to the limits shown on the plans. Silt fencing will be installed around
the limits of the staging/stockpile areas.
5. Install tree protection fencing as directed by the Designer. Flag all vegetation to be
transplanted.
PHASE II
HOOKER FALLS SITE
1. Proposed structure locations will be staked by the contractor.
2. Remove all transplants and stockpile and maintain in accordance with the construction
documents.
3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with
the contract documents.
4. Perform required clearing and grubbing.
5. Segregate and stockpile topsoil and other soil material in accordance with the contract
documents.
6. Boulders and materials used for stream structures will be delivered through the primary
construction entrance and stockpiled in appropriate areas at the site.
7. Stream banks will be reconstructed and structures installed. Perform all topsoil
replacement, vegetation transplanting, and seeding.
8. Stream banks will have permanent and temporary seed, straw, soil amendments, and
erosion control matting applied to them as work progresses and by the end of each day.
Erosion control matting will be installed on top of the seeded, amended, and mulched
stream banks according to Construction Documents.
f. 'p
9. Any excavated soil materials not utilized will be stockpiled and maintained according to
the Construction Documents.
10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or
mulched according to the Construction Documents.
11. Live staking and vegetation transplanting can begin on the completed section of channel
if criteria outlined in the Construction Documents for live staking and transplanting are
met.
PHASE III
GAS LINE SITE
1. Proposed structure locations will be staked by the contractor.
2. Remove all transplants and stockpile and maintain in accordance with the construction
documents.
3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with
the contract documents
4. Perform required clearing and grubbing.
5. Segregate and stockpile topsoil and other soil material in accordance with the contract
documents.
6. Boulders and materials used for stream structures will be delivered through the primary
construction entrance and stockpiled in appropriate areas at the site.
7. Stream banks will be reconstructed and structures installed. Perform all topsoil
replacement, vegetation transplanting, and seeding.
8. Stream banks will have permanent and temporary seed, straw, soil amendments, and
erosion control matting applied to them as work progresses and by the end of each day.
Erosion control matting will be installed on top of the seeded, amended, and mulched
stream banks according to Construction Documents.
9. Any excavated soil materials not utilized will be stockpiled and maintained according to
the Construction Documents.
10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or
mulched according to the Construction Documents.
11. Live staking and vegetation transplanting can begin on the completed section of channel
if criteria outlined in the Construction Documents for live staking and transplanting axe
met.
PHASE IV
1. Complete minor grading and sub-soiling of the site to create microtopographic features
adjacent to the stream channel.
2. After all construction requiring heavy equipment is complete; remove silt fence and tree
protection fence.
3. Begin removal of remaining staging area(s), construction entrance, and any remaining
associated materials.
4. Remove and dispose of all trash, metal, and debris from the site according to County and
State of North Carolina Regulations.
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VICINITY MAP
NDT TO SCALE
TRANSYLVANIA COUNTY
HOOKER FALLS-
LITTLE RIVER STREAM RESTORATI011t PROJECT
LOCATIDN:WPOh7 STATE FOREST i// /~
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INDEX OF SHEETS
SHEET NUMBER SHEEP
I TITLE SHEET
lA LEGEND
Z GENERAL NOTES
2A - 2C DETAILS
2D MORPHOLOGICAL TA9LE5
O CON51RlIC110N SEQUENCE
1 - 5 PLAN AND PRORLE
b EROSION CONTROL PLANS
XSC-I CRO55 SECTIONS
DISTURBED AREA = +/- .85 ACRES
REVISIONS
DESCA~anoR SCALE
AS SHDWN PLANS PREPARED BY:
MULKEY PROJECT MANAGER PROJECT ENGINEER
sc~RATk DESGN DATE: II/5/D6 WILLIAM SCOTT HUNT, III, PE
FNAL DESIGN DESIGNED: wSH • M U L K E Y
PEAwrnNGiwiDDicO DRAwk JTL
ENGINEERS & C[SN BLI LT
NT MULKEY SENIOR ENGINEER
00 ROY tl4E FOR 60RSTAOCII
CHECXED: wSN A
S WILLIAM SCOTT HUNT, III, PE
APPADVED, WSH PC BGX 33127
RALEIGH: N.C. 27636
(9191851.1912 MULKEY SENIOR SCIENTIST
(9191 851-1918 (FAXI
w x X PADI cr iuR A www.MULKEnNC.caM THOMAS BARRETT, RF
zooGZaz.DD
NCFS PROJECT MANAGER
TOM A. GEROW, JR.
zoos,$3o
NOT TO SCALE
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PLANS PREPARED FOR
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TITLE SHEET
SHEET
OF
NOTE: NOT TO SCALE ,~~"``" "'''~~;
Not all s bols used in lans LEGEND `'~~ °~~~ c~~RO~' ~~"'
Ym P ~~ ~.~~~tiss~~y~ti9
BOUNDARIES AND PROPERTY.•
State Line - -
County line - - - -- - --
Township Line - - - -------
City Line - - - . - - ..... ---- -
Reservafion Line - - - - - - - - - - - -
Properfy line - - - - - - - -
Existing Iron Pin - - - - - -
Property Corner - - - - - - - - -
Property Monument - - - - - - - - -
Temporary Fence - - - - - - - - - -xx-x-
Proposed Woven Wire Fence - - e
Proposed Chain Link Fence - - - - ~-
Proposed Barbed Wire Fence - - - - - - ~--
Tree Protection Fence - - - - - - - - - - - - - - - ~--0
Existing Wetland Boundary - - - - - - ----~~~----
Proposed Wetland Boundary - - - - - - - ns
Proposed Conservation Easement - -
Construction Limits - - - - - - ---------------
LimitsOfDisturbance ---------- ----------------
Gate - ----- - --- - -- -- ~--~
L ~-J
Benchmark------------------------- .
BUILDINGS AND OTHER CULTURE.•
Sign - -_- ... --- ---- -
Well - ----- - ----- - -- -- °
W
Foundation --- ----- - - - --- ~
Area Outline--- - ------- - --- 0
Recreational Structure - - - - - - - - ----- -----------
Building - - - .. - - - - - u
School - ---- - - - --- -----
Church - ----- - - - ----
HYDROLOGY.•
Stream or Body of Water - - - - - - - - - - . - - .- ...-
Hydro, Pool or Reservoir - - - - - - - - - - - - - - ~
` ----~
-J
River Basin Buller------------------- F„-
Flow Arrow - - - - - - - - - - ..~ ...-...-
Disappearing Stream - - - - - - - - - - - - - - - - - ...-._-
Spring -- - - ----- -- -- -o'- ..~~
Tholweg - - - - - - - - - --- -
Top Of Bank- - - - - - - - - - - - - -- ------
Swamp Marsh-- --------------- ~
P
d L
f
l
T
il
H
d Dit
h ~
ropose
a
era
,
,
ea
a
c
- - - - - - - -
RAILROADS.•
Standard Guage - - - - ~ •L~~'
csx rawsvoArumn~
RR Si nal Mile ost ''
9 P - uncaosT 3s
Switch -..- - ..... ..---- ~
SW11CN
RR Abandoned --- -- - --
RR Dismantled - - - - -- -
ROADS AND RELATED FEATURES.•
Existing Edge of Pavement - - - -----
Existing Curb - - - - - - - - - .. -----
Existing Metal Guardrail - - - - - -~--'--'-
Existing Cable Guiderail - - - - -b--~-~-
l~'GETATION.•
Single Tree - - - - - - - - - - ~ Q
Single Shrub - - - - - - - - - o
Hedge - - - - - - . . ......... ..„-,..„r„r~
Woods Line - - - - - - - - 1,,, ~,.,"n„"„
Orchard - ------ --- Q 4 4 4
Vineyard - - - - - - - - - - - -~ _ ~~°°y°~d - 1
EXISTING STRUCTURES.•
MAJOR:
Bridge, Tunnel or Box Culvert - - - - - co~,~c
Bridge Wing Wall, Head Wall and End Wall ~ cant Ww
MINOR:
Head and End Wall - - - - - - - - - cant ew
Pipe Culvert - - - - - - - - - - - -
Footbridge ....... - - - - - ~- --~
Drainage Box: Catch Basin, DI or JB - - - - - ~ce
Paved Difch Gutter - - - - - - - -- ---
Storm Sewer Manhole-------------- 0
Storm Sewer - - - - - - - - - - s
UTILITIES.•
POWER:
Existing Power Pole------------ -- -
Existing Joint Use Pole - - - - ~-
Power Manhole - - - - - - - - -
Power Line Tower - - - - - -
Power Transformer - - - - - - - - - - ~
lLG Power Cable Hand Hole - - - NN
H-frame Pole - - - - - - ~-+
Recorded LVG Power Line - - - P
GAS:
Gas Valve - - - ------ Q
Gas Meter - - - - - - - - o
Recorded lbG Gas Line - - - - - - - - -
Above Ground Gas Line - - - - "" `°'
-. I~
2967 ~ ~;
fz'
~ l.2a s,
TE%EPnONE: ,''~~i/~(~~/'SCVf +y~~J~~,, +
s g Telephone Pole ~rrr-
Telephone Manhole - - - - - - - 0
Telephone Booth ~ - - - - - - D
Telephone Pedestal - - - - - - - ~
Telephone Cell Tower - - - - - - - - - - ~
USG Telephone Cable Hand Hole - - - ~
Recorded WG Telephone Cable - -
Recorded LbG Telephone Conduit - - - - '~
Recorded lYG Fiber 0 tics Cable - - - ' ~°-
P
WATER:
Water Manhole - - ~ - - - - - - -
Water Meter - - - - - - - - - - o
Water Valve - - - - - - -
Water Hydrant - - - - - - - ~
Recorded WG Water Line - - - - - - -
Above Ground Water Line - - - arc W0~eY
N:
N Satellite Dish ------------ - CC
N Pedestal - - - - ... - - -
N Tower ------... ---- -- - ~~
lVG N Cable Hand Hole - - - - "H
Recorded lbG N Cable - - - - - - - - ~~
Recorded Wti Fiber Optic Cable - - ~~ ~°
MISCELLANEOUS:
Utility Pole ----------------------- ~
Utility Pole with Base ---------------- ^
Utility Located Object - - - - - - - - - - - - - - - - o
Utility Traffic Signal Box - - - - - - - - - - - - - -
Utility Unknown lLG Line - - - - - - - - - - - - ~~~~
U-G Tank; Water, Gas, Oil ----------.- 0
ArG Tank; Water, Gas, Oil ------------
Abandoned According to Utility Records - - - AATUR
End oflnformation ------------------ E.0.1.
SANITARY SEWER:
Sanitary Sewer Manhole - - - - - - - - S
(Located By Others)
Sanitary Sewer Cleanout - - - - - - - - - - - - - - 0
lYG Sanitary Sewer Line--------------
(Located By Others)
Above Ground Sanitary Sewer - - - - - - - - - bit 5°^.,°~~ seWe~
Recorded SS Forced Mam Line- - - - - - - - - - ~~s
PROPOSED STREAM WORK.•
STREAM STRUCTURES:
Rock Crossvane - - - - - -
RockVane-~~ --- ~ ---
JHookRockVane----------------
Single Wing Deflector - - - - - - - - - - - - - -
Double Log Drop -----------------
Rock Step Pool e- ------------
Constructed Riffle - - - - - - - - - -
Root Wad-- ..-- ----
Structure Number ---------------
STREAM FEATURES:
Bankfull -- -- ----- ..
Vernal Pool - - - - - - - - - -
Headwall----------------------
CulvertPipe ---------------------
EROSION CONTROL FEATURES•
Temporary Stream Crossing - - - - - - - - -
Temporary Construction EntrancdExit - - - -
Silt Fence -------------------- ---
Staging Area --------------------
Impervious Dike- - - - - - - - - - - -
Maintenance Road ----------------
Stone Outlet Sediment Trap - - . - - - - - - .
Impervious Stream Channel Plug - - - -
Natural Rock Energy Dissipator Basin Pad- -
PLANTING ZONES.•
Stream Banks - - - - ~ - - -
Riparian Buffer------------------
Vemal Pool ......................
Wetland - - - - - -
Upland Buffer------------------
Maintained Area/Existing - - - - - - -
0
O
~..__~
)T(
fad
~W~
v
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GENERAL NOTES
1
+~
1. This plan is based on the principles of natural channel design.
2. Proposed constructed stream features and structures shown on these plans are shown
in their approximate location and shall be field located and dimensioned to insure
proper channel dimension.
3. All elevations shown on these plans are referenced to an assumed datum.
4. The location of all equipment and material staging areas, haul roads and access points
to be located as noted on these plans. Limits of tree protection fencing, silt fencing,
construction staging areas and construction access roads shown approximate on plans.
Limits and locations to be coordinated with the designer.
5. Rock will be staged in construction staging areas upon delivery. Existing rock will
also be utilized in formation of structures where feasible.
6. Construction activities shall progress downstream, unless otherwise noted on these
plans or as directed by the designer.
7. Equipment will remain outside of channel for the majority of construction. Minimal
in-stream work is anticipated for successful placement of structures and channel
excavation.
8. All mechanized equipment operated in or near the stream or its tributaries shall be
inspected regularly and maintained to prevent contamination of stream waters from
fuels, lubricants, hydraulic fluids or other toxic materials. Any equipment repairs,
maintenance or refueling activities shall not be done while the equipment is in the
stream or its tributaries.
9. Contractor to dispose of all waste material offsite in accordance with all federal, state
and local regulations.
10. All appropriately sized on-site trees removed during the stream restoration
construction to beused on-site as rootwads, footer logs, etc., where feasible and as
directed by the designer.
11. All rootwads shall be installed by driving or pushing them into the streambank, when
driving is not feasible, installation through excavation maybe acceptable if directed
by the Designer.
12. All disturbed areas to be seeded immediately as specified in the project specifications.
13. Apply temporary and permanent seed and erosion control fiber matting to bankfull
bench and cut banks daily as excavation progresses. Erosion control fiber matting
will be keyed into the top of slope and at the ends of each mat to prevent undercutting
from sheetflow. Additional silt fencing will be installed as directed by the designer.
14. Unless otherwise directed by the Designer or noted on these plans, a 50-foot
minimum width permanently vegetated buffer shall be planted.
15. Use rootwads, topsoil and transplant vegetation generated on-site for the proposed
stream construction as close as possible to the existing location from where these
items are removed in order to minimize hauling distance and storage duration.
16 Unless otherwise directed by the designer, and where feasible, when beginning
construction on a given reach, where clearing is required, use the following sequence:
A. Remove transplant vegetation and stockpile as specified on the plans.
B. Remove larger trees that can be used on-site for rootwads, footer logs, log vanes
or floodplain habitat structures and stockpile as specified on the plans.
C. Remove remaining vegetation and dispose of or stockpile as specified on the
plans.
D. Remove topsoil and stockpile as specified on the plans.
E. Remove remaining soil materials as required and stockpile as specified on the
plans.
17. Existing non-native vegetation within the proposed limits of construction to be
removed as specified in the project specifications.
18. Contractor to provide temporary plant bedding area on site for temporary storage of
vegetation transplants. Transplants to be kept watered, mulched and shaded at all
times as specified in the project specifications.
19. Construction staging areas to be of adequate size to provide safe and organized
storage for rock, rootwads and logs to be used for in-stream structures, mulch, topsoil
and other soil material, temporary plant beds for vegetation transplant material, as
well as all other related construction materials and equipment.
20. Construction personnel should park all vehicles within the limits of the designated
construction staging areas. All other construction equipment and vehicles should be
parked within the construction staging areas when not in use.
21. Contractor to be responsible for repairs to any damage to existing utilities, including
but not limited to, overhead and underground utilities, curb and gutter, pavement,
sidewalks, storm drainage systems, sanitary sewer systems, access roads, or fencing.
Any required repairs to be made in accordance with any and all applicable state and
or local municipality standards. The Contractor shall consult with the "Call Before
You Dig" Toll Free Number 800-632-4949, Mr. Ryan Green at PSNC Energy at 828-
273-7256, and the NC ONE Call Center at least 48 hour prior to beginning any
earthwork activities.
22. Contractor shall keep all topsoil stockpiled on site separately from other soil
materials.
23. Rock vanes may be installed in lieu ofj-hook vanes at the direction of the Designer.
24. Contractor may conduct minimal hand pruning of overhanging limbs along Hooker
Falls Road to facilitate equipment access and to prevent damage to existing
vegetation. Such pruning may be performed only with direct supervision of the
designer and the NCFS. No other vegetation removal is permitted unless specifically
approved by the designer and the NCFS.
25. The Contractor is advised to use caution and to follow the contract documents as well
as all applicable regulations with regards to pedestrian and bystander safety.
26. Al] tree and shrub plantings to be performed by NCFS after the completion of
construction.
,``~,~t~ruuurt rl~ri
r,
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=~~ 2ass7
~~`~ SCOTS ~;;.~`' ,
nrirrrr-~
DETAILS
NOT TO SCALE
J-HOOK ROCK VANE
CUT OFF
BANKFULL _ SILL
FOOTER
ROCK ~,-i o
GAP/5P~ 1NG= ~
ROCK QDIAMETER ~
SECTION A-A
B
CUTOFF SILL AT END OF -' `"~.~
"J"EXTENDS UP TO AN ,~ ;_~
ELEVATION OF 0.5 BANKFULLL
'.
'•
BANKFULL ~~ i
~ SCOUR! ,
I HOLE!I
A ~.
PLANTINGS ~'i i
BANKFULL ' ',
~,
0.9 dma ~ '
- ~ _ _~ o
SECTION B-B
FLOW->
GRAVEL ~~~~~~ ~~"~~~~~
TAILINGS ~ MIN STREAM BED
GEOTEXTILE
FABRIC
B
PLaNrwcs~
BANKFULL
0.9 d 2' - ' r
SECTION C-C
BANKFULL
H 3H FOR COBBLE/GRAVEL,
~', a2O°-30° 6H FOR SAND
j , i SCOUR
GAPS FOOTER HOL
ROCK
~ F-1 VANE LENGTH--I
~ (MAX DEPTH AT 0.9
~~ GEOTEXTILE OF VANE LENGTH)
~;! FABRIC
a
SECTION D-D
,~ T
NOTES:
I. ROCKS SHOULD BE NATIVE OUARP,IED ROCK
OR LOCALLY SHOT ROCK,AfJGULAR AND OBLONG.
SEE THE PROJECT SPECIFICATIONS FOR ROCK SIZE.
2. ROCKS SHOULD FIT TIGHTL'( WITH MINIMAL SPACES.
3. THE TOP OF FOOTER ROCKS SHOULD BE BURIED TO
A MINIMUM OF 3 TIMES 'H' IN GRAVEL/COBLE BED
STREAMS AND 6 11MES 'H' IIV SAND BED STREAMS,
WHERE 'H' IS THE DISTANCE FROM THE STREAM
BED TO THE TOP OF THE HEADEP ROCK, OR AS
DETERMINED BY THE DESIG~JEP,. H MUST BE A
MINIMUM OF 3'.
4, GEOTEXTILE FABRIC SHOULD BE PLACED ON THE
UPSTREAM SIDE OF ROCKS. FABRIC SHOULD BE
OVERLAIN ON EXPOSED ROCKS AND BURIED TO A
MINIMUM DEPTH OF 2 FT.OR AS DIRECTED BY THE
DESIGNEP,. FABP.IC SHOULD EXTEND UPSTREAM A
MINIMUM LENGTH OF 6 FT, OR AS DIRECTED 8Y THE
DESIGNEP,. FABRIC SHOULD BE BACKFILLED WITH
NATIVE BED MATERIAL OR GRAVEL TAILINGS.
~~+~ ~ GEOTEXTIEE
FABRIC
5. AT THE DIRECTION OF THE DESIGNER, THE STRUCTURE
APMS MA1' BE CONSTRUCTED UP TO AND TIED IN TD
AIV ELEVATION LESS THAN BANKFULL IIV ORDER TO
ACHIEVE THE CORRECT STRUCTURE ARM SLOPE.
~ti~tinuUUl
~~~`0,~~~ ~~ ~~~~
~`~~.~~'rESS/p~ ~'yy
,,•~~
_~.. _
..
~~y$ 2967 ; -c
~ ~.
~,~~,4,/SCrO~Y1~,,,y.
AT UPSTREAM END, KEY WING IN TO
BANK A MINIMUM OF 5' AT AN
ELEVATION EQUAL TO STREAM BED
BANKFULL BANIKFULL
i WIDTH i WIDTH i
a
a
FLOW
' J
J
C Y
z
a
m
A
BANKFULL -,
HEADER ROCK, TYP
i
BACKFILL,
TYP.
GRAVEL TAILINGS
MIN ML
EXCAVATED TRENCH FOR
SINGLE WING DEFLECTOR
CONSTRUCTION
~',Z~O O TAILINGS
~, ~~, FILTER
HRAODKR ~ ~.~ FABRIC
~`
SET HEADER ROCK BACK
- A MINIMUM OF I/3
WIDTH OF FOOT R ROCK
--- €--
'ABED
FOOTER ROCK, TYP.
ROCKS IN DEFLECTOR ARM SHOULC
NOT BE GAPPED OR HAVE ANY
SIGNIFICANT SPACES
FILTER FABRIC, TYP,
SECTIOf~J A-A
KEY WING IN TO BANK
AT A~ ELEVATION EQUAL
TO /Z OF BANKFULL
HEADER
BANKFULL ROCKS
~FLOW'q/ TO 10% SLOPE
BED
SECTION B-B
`-FOOTER
ROCKS
ROCKS IN DEFLECTOR
ARM SHOULD NOT BE
GAPPED OR HAVE ANY
SIGNIFICANT SPACES
FOOTER J u°~'
ROCK
AT DOWNSTREAM END
KEY WING IN TO BANK
A MINIMUM OF AT BANKFULL HEADER
AN ELEVATION EQUAL TO ROCKS
/3 TO ~/z OF BANKFULL
~ FLOW
PLAN VIEW - ~ -__ oz SLOPE ---
BED BED
FOOTER ROCKS,
TYP.
NOTES: ROCKS IN DEFLECTOR ARM SHOULD
L CLASS "A" STOIJE CAIJ BE USED TO P,EDUCE VOIDS NOT BE GAPPED OR HAVE ANY
BETWEEN HEADERS AND FOOTERS. SIGNIFICANT SPACES
2. COMPACT BACKFILL TO EXTENT POSSIBLE OR AT THE p
DIRECTION OF THE DESIGNER. SECTION C-C CX D-D
SINGLE WING DEFLECTOR
DETAILS
NOT TO SCALE
TEMPORARY CONSTRUCTION ENTRANCE/EXIT
L6~~ MIN ~ ~ ~~r ,~
~ 0
ABOVE / ; ~ ~ '~
EX. GRADE
2"to 3" WASHED STONE
GEOTEXTILE FABRIC
NOTES:
I. 2"TO 3"WASHED COARSE AGGREGATE STONE SAALL
BE USED. PAD TO BE 50' L X 20' W X 6" D AT A MINIMUM.
2. RADII TO BE SUFFICIENT TO ACCOMMODATE TURNING
RADII RE(IUIPED BY LARGE TRUCKS.
3. ENTRANCE(S) SHOULD BE LOCATED TO PP,OVIDE FOR
MAXIMUM UTILITY BY ALL CONSTRUCTION VEHICLES
4. MUST BE MAINTAIfJED IN A CONDITIOf~I WHICH WILL
PREVENT TPACKING OR DIRECT FLOW OF MUD ONTO
STREETS. PERIODIC MAINTENAI~ICE, II~ICLUDING TOPDRESSING
WITH STONE WILL BE NECESSARY.
,~~~``OP~~ CAS w~~y,~~~
:~` ~j~pFtiSS70~tiy
. Q
SEAL
?fy= 22967 ;~`
,~ ~ ~~ , S C 0 T ~ t ~ ~J ~ ~ ``
TYPICAL MATTING LOCATION
COIR FIBER MATTING
FROM TOE OF CHANNEL
TO I FT. BEYOND BANKEULL o
J
PROPOSED BANKEULL
' c'>
PROPOSED ~ ~
CHANNEL TOE
NOTES:
COIR FIBER MATTING SHALL BE PLACED ALONG THE
OUTSIDE BANK OF ALL BENDS AND ALONG BOTH SIDES OF
THE CHANNEL IIV TANGENT AREAS,
5. ANY SOIL MATEP,IAL TRACKED OhJTO THE ADJ011'JING
ROAD SHALL 8E CLEANED UP IMMEDIATEL'f.
DETAILS
NOT TO SCALE
SILT FENCE
8' MAX.
wiR~ ~~~
JIL I I LIV~.L I HUI\I1.
SILT FENCE FABRIC
AND WIRE BACKING
COMPACTED FILL
FLOW _ ~
8.. ;III-- I ._
NOTES:
I, WIPE SHALL BE A MINIMUM OF 32" IN HEIGHT.
2, SILT FEIvICE FABRIC SHALL BE A MINIMUM OF 36" 1N
HEIGHT AMID SHALL BE ADEQUATELY FASTENED
TO THE wIPE AS DIRECTED BY THE DESIGNER,
L °
'STEEL POST - 2'-0" DEPTH
~9~; ;WOOD POST - 3'-0" DEPTH
EXTENSION OF FABRIC AND
WIRE INTO TRENCH
```~~utiu~u~~~r/~
~,
~~`~~p~'(K ~AR~1j ~~'~,
'a~.~~f~SS%p~;~y '~
~''~
_ _ SEAL
= 22967 ;~;
= fz
~;
.,~~,~SC01"~ 11~~,~
TREE PROTECTION FENCE
8' MAX,
W000 OR
METAL POST
fSEE PROJECT
SPECIF1CATfONS7 M1N. 4'
EXISTING
GRADE
I
RRRNT VIEW
UI~ i,
MORPHOLOGICAI. TABLES
+i
Little River at Hooker Falls
Variables Existing Channel
1. Stream Type Cq
2. Drainage Area (sq. mi) 35.5
3. Bankfull Width (Wbkf) ft Mean: 114.70
Minimum: N1A
Maximum: WA
4. Bank(ull Mean Depth (dbkf) ft Mean: ' 2.71
Minimum: NIA
Maximum: WA
5. WidtlUDepth Ratio (Wbkftdbkf) Mean: 42.32
Minimum:. .. WA
Maximum: N1A
6. Bankfull Cross-Sectional Area: (Abkf) sq fl,' Me9n: 310.84
Minimum: N1A
Maximum: NIA
7: BankffiII Mean Velocity (Vbkf) fps Meam _ N1A
Minimum: NIA
Maximum: N(A
8. Bankfi,ll Discharge (Qbkf)cfs Mean: WA
Minimum:` NIA
Maximum! NIA
9: Maximum Bankfull Depth (dmax) ft Mean: 3.59
Minimum: 3.02
Maximum: 4.01
10. Ratio of Low Bank Height to Maximum Mean: 1.32
Bankfull ~pth (Ibhldmax)
Minimum: _.
1.02
Maximum:- 173
11. Width of Rlood Prone Area (Wfpa) ft Mean: 277.93
Minimum: NIA
Maximum: NIA
12. Entrenbhment Ratio (WfpalWbkf) Mean: 2.42
Minimum: NIA
Maximum:. NIA
13= Meander Length (Lm) ft Mean: NIA
Minimum: NIA
Maximum: NIA
14: Ratio of Meander Length to Bankfull Width Mean: NIA
(LmlWbkf) Mirnmum: NIA
Maximum: NIA
15. Radius of Cuneture (Rc) ft Mean: NIA
Minimum: NlA
Maximum: NIA
i6. Ratio of Rad'ws of Cun2ture to Bankfull Mean: NIA
Wldth(RclWbkf)
Minimum, _
~NlA
Maximum: __
N!A
17. Belt Width (Wbll) ft Mean: NIA
Minimum. WA
Maximums NIA
18. Meander Width Ratio (WblflWbkf) Mean: NIA
Minimum NIA
Maximum: NIA
19. Sinuosity (Stream lengthlvalley distance) Mean: 1.13
{K) Minimum, N1A
Maximum: N1A
20.Valley Slope (ftlft) Mean: 0,0103
Minimum N1A
Maximum: N1A
21. Average Water Surface Slope Mean: 0.0091
for Reach (Sang) Minimum NIA
Maximum: NIA
22. Pool Slope (Spoof) tUfl Mean: 0.00258
Minimum, D.OD198
Maximum: 0.00317
23. Ratio of Pool Slope to Average Slope Mean 0 28
(Spool'Savg) Minimum:: 0 22
Maximum: 0.35
24. Maximum Pool Depth (dpool) ff Mean: 5.40
Minimum: 5.37
Maximum: 5.43
25. Ratio of Maximum Pool Depth to Bankfull Mean: 1.99
Mean Depth (dpoolldbkf) Minimum: 1.98
Maximum: 2.00
26. Pool Width (Wpod) ft Mean: NIA
Minimum: N!A
Maximum: NIA
27. Ratio of Pool Width to Bankfull Width Mean: WA
(Wpod/Wbkf) Minimum: NIA
Maximum: NIA
28. Bankfull Cross-sectional Area at Pod Mean.:: NIA
(Apool) sq ft Mmimum: NIA
Maximum: NIA
29. Ratio of Pool Area to Bankfull Area Mean:' N1A
(ApoollAbkO Minimum' NIA
Maximum: N1A
30. Poolio Pool Spacing (p-p)ft' Mean: 93.53
Minimum: WA
Maximum: NIA
31. Ratid of Pobl-to-Pod Spacing to Bankfull Mean: 0.82
Witlth (p-plWbkf) . Minimum- N1A
Maximum: NIA
32, Pool Length (LpJ,ft Mean: 43.89
Minimum: 37.56
Maximum: 50.21
33 Ratio of PocLLength td Bank(ull Width Mean: 0.38
(Lp/Wbkf) Minimum: 0.33
Maximum:: 0.44
34. Riffle Slope.(Sriif) ftlft ' Mean. 0.05989
Minimum, 0.00401
Maximum. 0.11577
35. Ratio of Riffle Slope to Average Slope Mean: 6.55
(SnftlSaug) Minimum 0.44
Maximum: 12.67
36. Maximum Riffle Depth (dnfn ft Meaa 3.59
Minimum. 3.02
Maximum: 4.01
37 Ratio of Maximum Ri~e'Depth to Bankfu0 Meaa. NIA
Mean Depth (dnffldbkf) Minimum: NIA
Maximum. NfA
38. Run Slope (Sruri) ftlft Mean: 0.00835
M'mimum: 0.00763
Maximum'. 0.00907
39. Ratio of Run Slope to Avemge Slope Mean: 0.91
(Srun/Savg) Minimum: 0.83
Maximum: 0.99
40. Maximum Run Depth (drun} ft Mean: 4.39
Minimum: NIA
Maximum: NiA
~1. Ratio of Run Depth to Bank(ull Mean Depth Mean: 1.00
(druNdbkf) Minimum: NlA
Maximum: N1A
42. Slope of Glide (Sglide) ftlft Mean: 0.003D3
Minimum: D.OD000
Maximum: O.DD605
43. Ratio o(Glide Slope to Average Water Mean: 0.33
Slope (SglidelSavg) Munmum ~ p.Op
Maximum: 0.66
44. Maximum Glide Depth (dglide) ft Mean: 4.60
Minimum: 4.21
Maximum:. 4.99
45. Ratio of Glide Depth to Bankfull Mean Depth Mean: 1.70
(dglideldbkQ Minimum: 1.55
Maximum: 1.84
Materials:
Particle Size Distribution of Channel
D16 1.29 mm
D35 16 mm
D5g 52.6 mm
~+ 262.5 mm
D95 Bedrock
,`~~.tttuy n ttn~aJ~,~/
.! Q~ ~9.
c¢~ 2567 ~ :~=
~/~~ houN°4 J ti~~
~~~~''SG r~'t~'`~y4
CONSTRUCTION SEQUENCE
T'
PHASEI
1. Staging areas, stockpile areas, the construction entrance, limits of silt fencing, and
existing access roads will be identified and located as shown in plans.
2. Install the construction entrance.
3. Contractor will begin stockpiling materials in designated staging areas.
4. Install silt fencing to the limits shown on the plans. Silt fencing will be installed
around the limits of the limits of the staging/stockpile areas.
5. Install tree protection fencing as directed by the Designer. Flag all vegetation to be
transplanted.
PHASE II
HOOKER FALLS SITE
1. Proposed structure locations will be staked by the contractor.
2. Remove all transplants and stockpile and maintain in accordance with the
construction documents
3. Remove any appropriate trees to be used as rootwads and stockpile in accordance
with the contract documents
4, Perform required clearing and grubbing.
5. Segregate and stockpile topsoil and other soil material in accordance with the contract
documents.
6. Boulders and materials used for stream structures will be delivered through the
primary construction entrances and stockpiled in appropriate areas at the site.
7. Stream banks will be reconstructed and structures installed. Perform all topsoil
replacement, vegetation transplanting, and seeding.
8. Stream banks will have permanent and temporary seed, straw, and soil amendments
and erosion control matting applied to them as work progresses and by the end of
each day. Erosion control matting will be installed on top of the seeded, amended,
and mulched stream banks according to Construction Documents.
9. Any excavated soil materials not utilized will be stockpiled and maintained according
to the Construction Documents.
10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or
mulched according to the Construction Documents.
11. Live staking and vegetation transplanting can begin on the completed section of
channel if criteria outlined in the Construction Documents for live staking and
transplanting are met.
PHASE Ill
GAS LINE SITE
1. Proposed structure locations will be staked by the contractor.
2. Remove all transplants and stockpile and maintain in accordance with the
construction documents
3. Remove any appropriate trees to be used as rootwads and stockpile in accordance
with the contract documents
4. Perform required clearing and grubbing.
5. Segregate and stockpile topsoil and other soil material in accordance with the contract
documents.
6. Boulders and materials used for stream structures will be delivered through the
primary construction entrances and stockpiled in appropriate areas at the site.
7. Stream banks will be reconstructed and structures installed. Perform all topsoil
replacement, vegetation transplanting, and seeding.
8. Stream banks will have permanent and temporary seed, straw, and soil amendments
and erosion control matting applied to them as work progresses and by the end of
each day. Erosion control matting will be installed on top of the seeded, amended,
and mulched stream banks according to Construction Documents.
9. Any excavated soil materials not utilized will be stockpiled and maintained according
to the Construction Documents.
]0. All remaining disturbed areas at the site are to be amended, seeded, matted and/or
mulched according to the Construction Documents.
11. Live staking and vegetation transplanting can begin on the completed section of
channel if criteria outlined in the Construction Documents for live staking and
transplanting are met.
PHASE IV
1. Complete minor grading and sub-soiling of the site to create microtopographic
features adjacent to the stream channel.
2. After all construction requiring heavy equipment is complete, remove silt fence and
tree protection fence.
3. Begin removal of remaining staging area(s), construction entrance, and any remaining
associated materials.
4. Remove and dispose of all trash, metal, and debris from the site according to County
and State of North Carolina Regulations.
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ROCK SILL TIED TO J -HOOK 1
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REVISION I PROJECT ENGINEER
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MODIFIED SINGLE WING DEFLECTOR. ACTUAL
I NUMBER AND LAYOUT OF ROCK SILLS AND CELLS
TO BE DETERMINED BY THE DESIGNER DURING
CONSTRUCTION. DEFLECTOR TO BE 'TERRACED DOWN
NATURALLY TO THE RIGHT SIDE OF WATER TO FACILITATE
FUTURE EQUIPMENTACCESS AT THE PSNC ENERGY
TRANSMISSION PIPELINE RIGHT OF AWAY,INCLUDING
THE ABILITY OF SUCH EOUIPMENT TO CROSS THE
IL-3 STREAM AT THE RIGHT OF WAY.
TBM EL= 2021.356)( ASSUMED)
if _RAILROAD SPIKE IN 15 WHITE OAK
PROPOSED ACCESS, SILLS IN SHADED AREA TO BE LOWERED SLIGHTLY
J<; TO FACILITATE AND DIRECT EQUIPMENT AND PEDESTRIAN ACCESS.
1 1 \
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PSNC ENERGY TRANSMISSION'
PIPELINE' RIGHT OF WAY
ROCK CELLS TO BE BACKFILLED TO FINAL GRADE
1 WITH GRAVEL: TAILINGS. SELECTED ROCK CELLS THAT
ARE TO BE PLANTED WITH NATIVE SPECIES VEGETATION
)SHALL'. BE BACKFILLED TO WITHIN 2 FEET OF FINAL GRADE
USING GRAVEL .TAILINGS, WITH THE REMAINING BACKFILL
1 \"TO GRADE 'CONSISTING OF. TOPSOIL EXCAVATED ON SITE
\ \ \ DURING CONSTRUCTION. ROCK CELLS TO BE PLANTED',
\ \ WILL BE IDENTIFIED DURING CONSTRUCTION BY THE
DESIGNER AND NCFS.
1
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PROJECT REFERENCE NO. SHEET NO.
HOOKER FALLS 1 4
PLAN & PROFILE
4-oMUL-KEY
ENGINEERS G CONSULTANTS
20 0 40
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HOOKER FALLS 5
PLAN f~ PROFILE
X9P UUE IDU CUXUPXUCYIUX
~MULKEY
ENGINEE125 S CON9ULTANT3
?0 0 40
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PROPOSEp ACCESS, SILLS IN SHADED AREA 70 BE LOWERED SLIGHTLY
TO FACILITATE AND DIRECT EQUIPMENT AND PEDESTRIAN ACCESS.
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MODIFIED SfNGLE WING DEFLECTOR. ACTUAL
NUMBER AND LAYOUT OF ROCK SELLS AND CELLS
TO BE DETERMINED BY THE DESIGNER DURING
CONSTRUCTION. DEFLECTOR TO BE `TERRACED'DOWN
NATURALLY TO THE RIGHT SIDE OF WATER.
r~I' ~ ;'1 ", '• ROCK CELLS TO BE BACKFILLED TO FINAL GRADE
\ " ROCX SILLS TO BE KEYED ~~Y WffH GRAVEL TAILINGS. SELECTED ROCK CELLS THAT
INTO EXlSTJNG TOE OF SLOPE
ARE TO BE PLANTED WITH NATNE SPECIES VEGETATION
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TOE OF r } I ~~ SHALL BE BACKFlLLED TO WITHIN 2 FEET OF FINAL GRADE
EXISTING SLOPE ~ USING GRAVEL TAILINGS,WITH THE REMNNING BACKFILL
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DURING CONSTRUCTION. ROCK CELLS TO 8E PLANTED
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_____ _ __ _____ - TBM EL- 1997.90 (ASSUMEDI
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- EXISTING SECTION Of HOOKER FALLS SD1L ROAD NNL IN 10'YELLOW POPLAR
_ .. TO BE IMPROVED TO 10 FODT WIDE GRAVEL ACCESS
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EXISTING SOIL SECTION OF HOOKER FALLS RDAD
TO BE IMPRO/ED TO 10 F00T WIDE GRAVEL ACCESS EXISTING ERODED AREA
ROAD BY NCFS PRIOR TO BEGINNING OF CONSTRUCTION
WOODS
CONTRACTOR SHALL STAGE FJl CONSTRUCTION
MATERIALS AND EQUIPMENT WITHIN THE LIMITS OF THE
f815T1NG NCFS f0U1PMENT STORAGE AREA AT HOLLY ROAD
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NOTE: THE PROJECT SITE 1S LOCATED EMIRELY WITHIN THE OMITS
OF THE WPOM STATE FOREST !NORTH CAROLINA FOREST SER/1CE1