20070349 Ver 1_401 Application_20070207

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A S S O C I A T E S
February 22, 2007
Mr. Tom Walker,
Asheville Regulatory Field Office Chief
Asheville Regulatory Field Office
US Army Corps of Engineers
151 Patton Avenue
Room 208
Asheville, NC 28801-5006
PAYMENT
RECEIVED
20070349
Ms. Cyndi Karoly, Supervisor
401 Oversight and Express Permits Unit
1650 Mail Service Center
Mail Service Center
Raleigh, NC 27699-1650
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Dear Mr. Walker and Ms. Karoly:
Re: 404/401 Permit Application for the
Stream Stabilization/Restoration
River Walk Subdivision
Town of Highlands
Macon County, North Carolina
Attached please find the 404/401 permit application for the River Walk subdivision
located in the Town of Highlands in Macon County. The information included with this
application has been developed in conjunction the Army Corps of Engineers, Asheville Office,
DWQ's Asheville Regional Office, the NC Wildlife Resources Commission and the Town of
Highlands. The package addresses the issues noted in response item #5 of DWQ's NOV letter
dated September 26, 2006. The River Walk subdivision is located on an unnamed intermittent
stream that discharges to Mirror Lake which is part of the Cullasaja River. We have carefully
developed this application and have considered all potential impacts and benefits of this work.
It is important that the construction for this urgent stabilization/restoration work be conducted
as soon as possible. We look forward to quick regulatory action and approval of this repair
plan so this important work can be accomplished.
We have made every effort to effectively address each and every concern related to this
mitigation plan and the need to protect this area's water resources. We believe that the
Engineering ~ P l a n n i n g • F i n a n c e
McGill Associates, P.A. P. O. Box 2259, Asheville, NC 28802 SS Broad Street, Asheville, NC 2880!
828-252-0575 Fnx: 828-252-2518

Mr. Tom Walker and
Ms. Cyndi Karoly
February 22, 2007
Page 2 of 2
stabilization/restoration plan developed for this site is comprehensive and represents well
thought-through consideration of the existing water quality problems and will result in effective
management of any "short term" impacts during the construction phase.
We are looking forward to being able to proceed with this work as soon as possible.
Please let myself or Forrest Westall, of our office, know of any issues or consideration that
needs to be addressed to secure approval for this planned work. In accordance with the contact
we've made with North Carolina Department of Water Quality regional 401 contact, Mr.
Kevin Barnett, we have submitted directly to him his copy of this stabilization/restoration plan
and application. We have also submitted a copy of the plan directly to Mr. David McHenry
with the North Carolina Wildlife Resource Commission. Thank you for your attention to these
applications.
Sincerely,
McGILL ASSOCIATES, P.A.
i
J. P. JOHNS, P.E.
Enclosure
cc: Mr. David McHenry, NCWRC
Mr. Roger Edwards, DWQ Asheville
Mr. Kevin Barnett, DWQ Asheville
Forrest Westall P.E., McGill Associates

401/404 PERMITTING PACKAGE
STREAM STABILIZATION RESTORATION FOR
RIVER WALK SUBDIVISION
MACON COUNTY, NORTH CAROLINA
McGill
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ASSOCIATES, P. A.

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STREAM STABILIZATION/RESTORATION
FOR
RIVER WALK SUBDIVISION
20070349
TOWN OF HIGHLANDS, NORTH CAROLINA

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Prepared for
NC DIVISION OF WATER QUALITY
February 22, 2007
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1. PROJECT PURPOSE & DESCRIPTION
In response to notices issued by the NC Division of Water Quality, McGill Associates has
developed a remediation project plan for impacts to streams within the River Walk Project The
purpose of this project is to restore/stabilize two (2) stream reaches, Reach A and Reach B (as
shown in Appendix B), of an unnamed tributary of the Cullasaja River flowing through the River
Walk Subdivision located in Highlands, North Carolina. The River Walk Subdivision impacted
these tributary reaches during development of the site. This plan submittal has been discussed
numerous times with the NC DWQ, NC Wildlife Resources Commission, and the Army Corps of
Engineers, and during at least one site visit with the agencies. The restoration/stabilization of the
two (2) stream reaches is part of a mitigation plan as required by NC DWQ. In the mitigation
plan, deposited sediment will be removed in anon-destructive manner in both reaches. Both
reaches will also be restored with a natural channel design philosophy and consist of grade
control structures strategically placed throughout. An existing gravel roadway and asphalt
driveway will also be demolished and restored to a natural state with the use of native vegetation.
An eighteen (18) inch culvert will also be removed in that process opening up a section of Reach
A.
Another portion of the site not included within the NC DWQ mitigation requirement will
incorporate restoration stabilization measures. This portion of the site is located upstream of
Laurel Terrace Road and discharges into Reach A. The purpose for these measures is a direct
result of a significant amount of stormwater flowing off of Hwy 64 down a draw onto the River
Walk Subdivision. The off-site' water is currently causing a significant impact on the area of
proposed mitigation stated above. Several stormwater water quantity control ponds will be
designed and installed to control the peak runoff flow rates of the off-site drainage and to offer
water quality enhancement.
All work in or near the designated surface waters will be supervised by trained personnel from
McGill Associates, P.A.
2. SITE DSCRIPTION
River Walk subdivision is located approximately three (3) miles north on Hwy 64 from the
central business district of the Town of Highlands, North Carolina. The total project area under
consideration is approximately 2-acres, with the area related to the streams identified by NC
DWQ being approximately 1.1 acres. Refer to the design plans for photographs, mapping, and
details of the existing site conditions.
Reach A is approximately 200-feet in length. Significant sediment deposition has taken place in
this Reach as a result of on-site land disturbing activities. There are several established hemlock
trees and a significant amount of mountain laurel surrounding this Reach. Reach A is currently
piped underneath Laurel Terrace with an 18-inch culvert. Design calculations show that this 18-
inch CPP should be replaced with a 36-inch RCP to effectively pass the 25-year 24-hour storm
event.
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Reach B is approximately 200-feet in length. Significant sediment deposition has taken place in
this Reach as a result of on-site land disturbing activities. Reach B is currently piped underneath
Laurel Terrace with an 18-inch culvert. Design calculations show that this 18-inch CMP should
~~ be replaced with a 24-inch RCP to effectively pass the 25-year 24-hour storm event.
' Design calculations show that two (2) 36-inch RCP should be installed at River Walk Drive to
pass the 25-year 24-hour storm event.
The upper portion of the project area located upstream of Laurel Terrace Road is approximately
350-feet in length. The majority of this drainage channel was excavated to serve as a stormwater
conveyance channel for two (2) eighteen (18) inch culverts flowing underneath Hwy 64. The
storm water conveyance channel is surrounded by a mix of young and old hardwoods and
hemlocks as well as a few thick patches of mountain laurel. The project area for this portion of
the site is 0.9 acres.
Access to the site location will not be an issue since most of the roads for the subdivision have
already been graded. Utilities will be located and marked by a contractor prior to any
construction. The total disturbed project area under consideration is approximately 0.7-acres.
The approximate disturbed area for the area related to the streams identified by NC DWQ is 0.40
acres. This area requires permitting from the U.S. Army Corps of Engineers, (Section 404) and
NC Department of Environment and Natural Resources, Division of Water Quality (Section 401
Water Quality Certification). The approximate disturbed area for the area not related to the
streams identified by NC DWQ is 0.32 acres.
3. TECHNICAL DESCRIPTION
~ On September 22, 2006 members of the McGill Associates design team visited the River Walk
Subdivision to meet with staff of NC DWQ, NC WRC and the Army Corps of Engineers. At this
meeting, conceptual design techniques were discussed to resolve the violations concerning the
stream Reach impacts. In January of 2007 members of the design team made several site visits
to investigate potential design options for the mitigation plan required by NC DWQ. While on
site, the team members observed the existing channel banks, topography of the area, and specific
locations where the majority of sediment had been deposited. Photos were taken of the project
site and field notes were prepared for use in the design process.
McGill Associates Surveyors conducted an updated detailed survey of the stream Reach corridor.
The survey consisted of stream channel cross-sections, point elevations, and the location of
existing roads, pipes, and structures. The survey was used to generate an accurate representation
of the stream and surrounding topography.
Using the above data and information, the design team developed the Proposed
Restoration/Stabilization Plan including a plan view, typical repaired cross-section, construction
details for typical site features, technical construction specifications, and planting
recommendations for stabilization.
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The stream section located downstream of River Walk Drive was also evaluated. Specific
measures were taken in the design process to reduce the potential for erosion at the base of the
rock wall. A rock step pool was designed to dissipate the energy of the flow discharged from the
two (2) 36-inch RCP culverts, and to direct the flow away from the existing adjacent
fence/property line.
4. DESIGN CONSIDERATIONS
1 A range of possible restoration/stabilization alternatives were available for the Reaches.
Considering the site conditions, and topography of the area, the design team utilized natural
channel design techniques as well as some urban design. In the design development, the team
strived to utilize techniques that would be simple and understandable to a "typical" general
contractor, and techniques that could be easily modified or refined in the field by the designer (or
contractor) based on site conditions encountered during construction. It was also the intent of the
design to incorporate materials that are commonly used and readily available on-site.
The River Walk Subdivision site is in the mountainous region of North Carolina and a significant
amount of rock has been excavated and moved on-site. The site is steep with an average slope of
10-15%, therefore; several grade control structures were implemented in the design to help
dissipate the energy associated with water flowing on such a slope. A slight meander was put
into the design of Reach A to help decrease the velocity of the water.
Several water quantity control ponds are proposed in the design to help control the peak flow
rates through Reach A. The ponds were designed to detain up to the 10-year 6-hr storm event
and release the detained volume at a rate of 4.0 cfs. The 4.0 cfs flow rate results in a flow depth
less than Bankfull stage of the typical designed channel cross-section. A planting plan utilizing
coir mat and native vegetation was designed to prevent erosion that would occur at Bankfull
,# stage of the typical cross-section:
"' Based on site investigations, Reach A was utilized as the reference reach for the design. Reach A
represents a natural meandering stream consisting of several natural step pools. The individual
characteristics of Reach A were utilized in the design of Reach B. These characteristics included
channel dimension, channel slope, step pool size and location, riparian vegetation type and
location.
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Along with the reference reach information obtained from Reach A, other design options were
implemented in the design of Reach B. It was brought to our attention by NC DWQ that there is
a lack of natural amphibian (i.e. Frog, Salamander, etc.) habitat available in the area. Therefore a
rock lined step-channel was developed to help provide this habitat. The idea being that with
time, algae and moss will grow in the channel attracting the amphibians. The rock step-channel
will also help with grade control and alleviate erosive forces of the water moving through the
channel. Two cascading waterfalls were included in the design because there is a significant
grade drop at the junction of the two Reaches. The cascading waterfalls will help dissipate the
energy of the flow from the two Reaches before flowing through the two (2) 36-inch RCP
culverts at Riverwalk Dnve.
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5. PROPOSED RESTORATION/STABILAZATION PLAN
Sediment Removal
All deposited sediment will be removed from areas designated on the plans with a minimal
impact to existing stream banks. The primary means of removing deposited sediment will
incorporate hand-labor of shovels, buckets, and wheelbarrows. The removal of sediment in areas
with significant deposition maybe conducted with the use of a backhoe as long as the use of the
mechanical equipment does not disturb existing trees, shrubs, and natural growth along stream
channel banks.
Sediment removal management will be provided by a qualified engineer to ensure the existing
sediment removal process does not cause damage to the existing stream bank structure and
adjacent vegetated areas.
Channel Alignment
The proposed channel alignment of Reach A will be beneficial to the existing vegetation. The
design stream channel varies from the existing location in order to save several large Hemlock
trees that exist through the stream corridor. The existing stream alignment was causing severe
root damage to the existing trees and the design team felt that moving the stream by creating
some meander bends would not only alleviate the pressure on those trees but help slow flow
velocities through the area. The meanders also create a desirable habitat for macroinvertebrates
and amphibious creatures.
The proposed channel alignment of Reach B will create a more hydraulically effective channel
eliminating the current 90° bend. This will not only create a stable channel section but will also
create a desirable habitat for macroinvertebrates and amphibious creatures.
Grade Control Structures
Rock Step Pool
The rock step pools designed for Reach A were field located by the design team on-site. They
were placed where there are existing natural drops in the Reach or where the design team
determined they would help with grade control as well as protect surrounding vegetation. The
locations of the rock step pools designed for Reach B were based on the locations of the step
pools in reference Reach A.
The rock step pools will be constructed with boulders found on-site and non-woven geotextile
fabric will be placed on the upstream face of the structure to prevent water from piping through
the structure. The rock step pool will help establish a natural pool riffle sequence and the
creation of habitat suitable for macroinvertabrates.

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Cascading Water Fall
The cascading waterfalls were field located by the design team on-site. They were placed at
existing drops in both Reach A and Reach B. The cascading waterfalls will alleviate erosive
forces caused by high flow velocities along with providing water quality enhancement. Flow
velocities will be dissipated by the vertical fall of water and the water quality enhancement will
be provided by allowing oxygen to mix in the water through turbulent flow.
Rock Step-Channel
The rock step-channel was placed in Reach B due to a lack of specific habitat for a salamander
indigenous to the area. The rock step-channel will also provide energy dissipation and water
quality enhancement through oxygenation. The rock step-channel will be built with boulders
located on-site and non-woven geotextile fabric will be placed underneath each boulder to
prevent piping underneath or through the structure which could lead to failure.
Water Quantity Control Ponds
The water quantity control ponds were designed to help alleviate the flow velocity of off-site
water moving through the site. These structures were designed to detain and release stormwater
' runoff at a manageable rate so that all design stream alignments and channel cross-sections do
not overtop during the 10-year, 6-hour storm event. The design maximum release rate for the
10-year, 6-hour storm event will. be 4.0 cfs, which will flow at a depth less than Bankfull for the
designed cross-section at 10% slope through Reach A. Storm events greater than the 10-year, 6-
hour storm event will not be controlled by the water quantity ponds and will flow through the
riparian vegetative areas to inhibit erosive velocities.
1 Ve etated Buffer
A vegetated buffer will be established along the restored Reaches and stormwater conveyance
channel. The buffer will be seeded and planted with the appropriate native riparian vegetation
and will provide channel and overbank stability and treatment of surface waters traveling
laterally through the buffer.
Species will consist primarily of native shrubs. The repaired bank will be planted with the
appropriate channel bank species in the form of bare-root seedlings (and/or container plants), and
transplants where available. Native shrubs that are available elsewhere on-site will be removed
with as much of the root ball intact and transplanted adjacent to the restored channel. The
majority of the planting efforts (with the exception of site transplants) should be conducted by
locally identified plant sources or purchased from local, reputable nurseries. Other sources,
outside of the local area, may be used depending on the availability of plant material and as
approved by the engineer.
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Shrub species will be planted at a spacing of 6 ft. by 6 ft. to achieve a desired planting density of
approximately 1,200 shrubs per-acre in order to improve potential for the desired 5-year
survivability. The planting plan must include a minimum of three (3) of the seven (7) shrubs
listed in the plating schedule.
A representative from McGill Associates will be on site to observe and direct planting efforts
associated with the buffer restoration. The engineer must approve substitution of shrub species
in advance.
Temporary and/or permanent seeding measures will be applied to areas disturbed during grading
operations to allow for localized stabilization while riparian species establish themselves.
Technical Specifications are attached in Appendix A. Construction Drawings for the proposed
Stream Restoration/Stabilization Plan are attached in Appendix B and include proposed stream
alignments, typical cross-section, proposed structures, structure details, erosion and sediment
control details, and a planting schedule and details are attached.

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APPENDIX A
TECHNICAL SPECIFICATIONS
FOR
STREAM REPAIRS & BANK STABILIZATION PROJECTS
Prepared for:
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STREAM STABILIZATION/RESTORATION
FOR
RIVER WALK SUBDIVISION
Town of Highlands, NC
FEBRUARY 22, 2007

TECHNICAL SPECIFICATIONS TABLE OF CONTENTS
TITLE PAGE
TABLE OF CONTENTS
SECTION 1 - GENERAL REQUIREMENTS 1
1.1 SECTION INCLUDES 1
1.2 SUMMARY OF WORK 1
1.3 WORKFORCE EXPERIENCE 1
1.4 SPECIFIC EQUIPMENT REQUIREMENTS 1
1.5 MEASUREMENT AND PAYMENT 1
SECTION 2 - TEMPORARY FACILITIES 1
2.1 SECTION INCLUDES ~1
2.2 MEASUREMENT AND PAYMENT 1
2.3 TEMPORARY SANITARY FACILITIES 1
2.4 BARRIERS 1
2.5 TRAFFIC CONTROL 1
2.6 STAGING AREA 1
2.7 COORDINATION WITH OWNER AND OTHER
CONTRACTORS 2
2.8 PROTECTION OF EXISTING FACILITIES,
STRUCTURES, AND SERVICES
2
2.9 PROTECTION OF INSTALLED WORK 2
2.10 PROGRESS CLEANING & WASTE REMOVAL 2
2.11 EROSION CONTROL 2
2.12 FINAL CLEANING 2
SECTION 3 - QUALITY CONTROL 3
1 3.1 SECTION INCLUDES 3
3.2 MEASUREMENT AND PAYMENT 3
3.3 REFERENCES 3
3.4 CONSTRUCTION OBSERVATION 3
1 3.5 PLANTING OBSERVATION 3
SECTION 4 - SITE PREPARATION 4
f 4.1 SECTION INCLUDES 4
4.2 MEASUREMENT AND PAYMENT 4
4.3 UTILITY LOCATION AND PROTECTION 4
4.4 SEDIMENTATION AND EROSION CONTROL 4
4.5 CONSTRUCTION LAYOUT 4
4.6 CLEARING, GRUBBING, AND STRIPPING 4
4.7
N DEWATERING
EXCAVATION 4
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SECTIO
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5. ] SECTION INCLUDES 5
5.2 MEASUREMENT AND PAYMENT 5
5.3 REFERENCES 5
5.4 PREPARATION 5
6.4 FILL MATERIALS
6.5 PREPARATION
6.6 BACKFILLING, FILLING, AND SURFACE
PREPARATION
6.7 COMPACTION AND QUALITY CONTROL
6.8 PROTECTION OF FINISHED WORK
6.9 TOLERANCES
SECTION 7 -CHANNEL PROTECTIVE LININGS AND IN-
STREAM STRUCTURES
7.1 SECTION INCLUDES
7.2 MEASUREMENT AND PAYMENT
7.3 REFERENCES
7.4 GENERAL
7.5 MATERIALS
7.6 IN-STREAM STRUCTURES & TOE
STABILIZATION
7.7 CHANNEL PROTECTIVE LININGS
7.8 SLOPE PROTECTION
SECTION 8 -STREAM BANK PLANTING
8.1 SECTION INCLUDES
8.2 MEASUREMENT AND PAYMENT
8.3 REFERENCES
8.4 GENERAL
8.5 LIVE STAKES
8.6 PLANT SUBSTITUTION
8.7 PLANTING PREPARATION
8.8 STREAM BANK PLANTING
8.9 PLANTING PERIODS
8.10 REMOVAL OF NUISANCE VEGETATION
8.11 WATER FOR PLANTINGS
8.12 SUBMITTALS
SECTION 9 -BUFFER PLANTING
9.1 SECTION INCLUDES
9.2 MEASUREMENT AND PAYMENT
9.3 REFERENCES
9.4 GENERAL
9.5 CONTAINER GROWN PLANTS
9.6 BARE ROOT PLANTS
9.7 PLANT SUBSTITUTION
9.8 PLANTING PREPARATION
9.9 PLANTING PERIODS
9.10 REMOVAL OF NUISANCE VEGETATION
9.11 WATER FOR PLANTINGS
9.12 SUBMITTALS
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5.5 EXCAVATING 5
5.6 PLANTING PREPARATION 5 SECTION 10 -PERMANENT SEEDING 13
5.7 TOLERANCES 5
10.1 SECTION INCLUDES 13
SECTION 6 -FILLING, BACKFILLING AND COMPACTION 6 10.2 MEASUREMENT AND PAYMENT 13
10.3 REFERENCES 13
6.1 SECTION INCLUDES 6 10.4 GENERAL 13
6.2 MEASUREMENT AND PAYMENT 6 10.5 SEEDBED PREPARATION 13
6.3 REFERENCES 6 10.6 SEEDING 13
10.7 SEEDING DATES 13

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' 10.8 SOIL AMENDMENTS 13 11.5 SILT FENCE 14
10.9 MULCH 13 11.6 TEMPORARY SEEDING 14
SECTION 11 -SEDIMENT & EROSION CONTROL 14 SECTION 12 -SITE MAINTENANCE 15
11.1 SECTION INCLUDES 14 12.1 SECTION INCLUDES 15
11.2 MEASUREMENT AND PAYMENT 14 12.2 MEASUREMENT AND PAYMENT 15
11.3 REFERENCES 14 12.3 EXECUTION 15
11.4 MATERIALS ] 4

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SECTION 1 -GENERAL REQUIREMENTS SECTION 2 -TEMPORARY FACILITIES

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1.1 SECTION INCLUDES
General requirements and information related to the work including,
summary of work, measurement and payment, and reference to
SPECIAL CONTRACT PROVISIONS.
1.2 SUMMARY OF WORK
The Watauga County Stream Repairs and Bank Stabilization project
consists of the earthwork construction of repaired and stabilized
channel banks, in-channel structure installation, toe stabilization,
and/or planting of the repaired channel banks and surrounding buffer
area. Refer to the Construction Drawings and to these Specifications
for project details.
1.3 WORKFORCE EXPERIENCE
The Contractor is required to have the appropriately experienced
personnel on-site to operate equipment and insure that the construction
sequence and installation procedures are followed as determined by the
Engineer. Contractor personnel should be familiar with stream repair
and bank stabilization techniques and the correct method of installing
in-stream structures (i.e. rock cross-vanes).
1.4 SPECIFIC EQUIPMENT REQUIREMENTS
The Contractor is required to have at a minimum two excavators with
hydraulic thumbs during the entire course of construction unless
otherwise approved by the Engineer. The hydraulic excavators must be
of sufficient size to lift, manipulate, and install boulders larger than 5-
foot by 4-foot by 3-foot (a maximum of 6 tons).
1.5 MEASUREMENT AND PAYMENT
All measurement and payment for services performed shall be as
indicated in the SPECIAL CONTRACT PROVISIONS. As such, they
are not defined in these technical Specifications.
END OF SECTION
' Stream Stabilization/Restoration
River Walk, Highlands NC
Page 1
2.1 SECTION INCLUDES
Required temporary facilities including site access, temporary sanitary
facilities, barriers, traffic control, construction staging area, Contractor
coordination, protection of existing facilities and installed work,
erosion control measures, and general site cleaning.
2.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
2.3 TEMPORARY SANITARY FACILITIES
Provide and maintain required sanitary facilities and enclosures. No
permanent sanitary facilities exist at the project site.
2.4 BARRIERS
Provide barriers to prevent unauthorized entry to construction areas, to
allow for Owner and Engineer access to site, and to protect existing
structures and adjacent properties from damage due to construction
operations.
2.5 TRAFFIC CONTROL
Provide traffic control as required to protect the public safety.
Conform to all requirements of State, County, City, or local laws and
requirements for traffic control. Conformance with Contract '
Documents does not relieve the Contractor from responsibility for
public safety. Construction operations maybe underway on adjoining
portions of the site.
2.6 STAGING AREA
The Owner will designate an area for staging of Contractor's
equipment and construction materials for the duration of construction.
This area shall be maintained so as to provide a sightly appearance and
a safe working environment. No other area shall be used for this
purpose without the approval of the Owner.
Storage of oil or fuel shall be confined to the construction staging area.
Refueling of all vehicles and equipment shall occur only in the staging
area. Refueling ofnon-mobile equipment located outside of the staging
area will be allowed with Owner approval. No refueling shall occur
within fifty feet of the channel or any other surface water or wetland.
The Contractor shall take appropriate measures to ensure safe fueling
procedures are followed.
Contractor shall provide appropriate spill prevention measures. The
Contractor shall provide a spill containment plan for both the staging
area and the construction area. The plan shall include prevention,
containment, and control of fuel or oil spillage from equipment storage,
refueling, maintenance, and operation on-site. The plan shall address
both mobile and non-mobile equipment used during construction.
Emergency spill cleanup equipment for oil and fuel spills shall be
stored on-site. The Contractor shall notify the Owner and all
applicable agencies within 24 hours of any spill.
Technical Specifications
February 22, 2007

i 2.7 COORDINATION WITH OWNER AND OTHER
CONTRACTORS
Perform coordination with Owner and schedule work to ensure limited
disruption of daily operations. Obtain approval from Owner prior to
the disruption of any access to site utilities, structures, or locations.
Coordinate the disruption of any utility services without regard to
duration. Provide continuous representation/point of contact for
Owner during all site activities. Access to construction-site shall be
limited to the entrance designated on the plans. Only access points
1 approved by the Owner shall be used during construction.
2.8 PROTECTION OF EXISTING FACILITIES, STRUCTURES,
AND SERVICES
i The project vicinity, including existing access routes, will continue to
be used for daily operations by Owner and other contractors throughout
the duration of the construction. T'he Contractor shall protect existing
facilities, structures, and services throughout the duration of
construction and provide special protection where specified in
individual specification sections. Provide temporary and removable
protection for existing structures and services.
Control activity in immediate vicinity of facilities, structures, and
services to prevent damage. Any facility, structure, or services
disturbed or damaged, either intentionally or unintentionally, shall be
removed and reinstalled or repaired to the Owner's satisfaction.
Repairs to or replacement of facilities, structures, or services shall be
performed at the expense of the Contractor. Repairs and/or
replacement shall occur without additional cost to the Owner.
2.9 PROTECTION OF INSTALLED WORK
Protect installed work and provide special protection where specified in
individual specification sections. Provide temporary and removable
protection for installed work and products. Control activity in
immediate work area to prevent damage. Any installed work disturbed
1 or damaged, shall be removed and reinstalled or repaired to the
Engineer's satisfaction. Repairs to or replacement of installed work
shall be performed at the expense of the Contractor. Repairs and
replacement shall occur without additional cost to the Owner.
2.10 PROGRESS CLEANING AND WASTE REMOVAL
Maintain areas free of waste materials, debris, and rubbish. Maintain
site in a clean and orderly condition. Collect and remove waste
materials, debris, and rubbish from site daily and dispose off site.
Remove temporary utilities, equipment, facilities, and materials prior to
Final Application for Payment inspection. Restore existing facilities
used during construction to original condition.
2.11 EROSION CONTROL
Contractor shall be responsible for preventing erosion on the site and
sedimentation off the site. Methods shall be employed as
recommended in the North Carolina Erosion and Sediment Control
Planning and Design Manual, latest edition.

2.12 FINAL CLEANING
Execute final cleaning prior to final project assessment. Clean site and
all installed work. Remove waste and surplus construction materials,
rubbish, and construction facilities from the site.
END OF SECTION
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 2
Technical Specifications
February 22, 2007

SECTION 3 -QUALITY CONTROL Section 9 (Wetland and Buffer Planting) of these Specifications.

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3.1 SECTION INCLUDES
Observation of construction operations and buffer and stream bank
planting.
3.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS. Unless indicated
otherwise, the Owner will arrange and pay for initial planting
observation for quality assurance. Re-observation testing required
because ofnon-conformance to plans or Specifications shall be charged
against any money owed to Contractor. Contractor is encouraged to
perform quality control checks and testing at Contractor's expense to
reduce the possibility of rejected work.
3.3 REFERENCES
For products or workmanship specified by association, trade, or other
consensus, comply with requirements of the standard, except when
more rigid requirements are specified or are required by applicable
codes.
Conform to reference standard by date of issue on date of Contract
Documents, except where a specific date is established by code.
Section 6 (Filling, Backfilling, and Compaction) of these
Specifications.
Section 8 (Stream Bank Planting) of these Specifications.
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 3
3.4 CONSTRUCTION OBSERVATION
The Owner has engaged the Engineer to observe construction
operations as required in these Specifications. Reports (either verbal or
written) shall be submitted concurrently to the Owner and Contractor,
indicating observations and indicating compliance ornon-compliance
with Contract Documents.
Observation of construction operations does not relieve Contractor of
obligation to perform work to contract requirements. The Contractor
shall allow observation personnel access to materials and the
construction-site as required.
3.5 PLANTING OBSERVATION
The Owner has engaged the Engineer to observe stream bank and
buffer planting as required in these Specifications. Reports will be
submitted concurrently to the Owner and Contractor, indicating
observations and indicating compliance ornon-compliance with
Contract Documents.
Observation of planting operations does not relieve Contractor of
obligation to perform work to contract requirements. The Contractor
shall allow observation personnel access to materials (see stream bank
plantings specified in Section 8) and the construction-site as required.
END OF SECTION
Technical Specifications
February 22, 2007

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SECTION 4 -SITE PREPARATION
4.1 SECTION INCLUDES
Site preparation shall consist of utility location and protection, clearing,
grubbing and stripping of the work area, and construction of any
required temporary construction access routes and temporary sediment
and erosion control measures.
4.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
4.3 UTILITY LOCATION AND PROTECTION
The Contractor shall locate all existing utilities and mark them for
identification. Contractor shall provide means for protecting utilities
from any damage during site work. Repair of damaged utilities shall be
at the Contractor's expense. Coordination should be made with Owner
to locate and mark site specific utilities. NC ONE CALL (1-800-632-
4949)
4.4 SEDIMENTATION AND EROSION CONTROL
Contractor shall be responsible for preventing erosion on the site and
sedimentation off the site. Methods shall be employed as
recommended in the North Carolina Erosion and Sediment Control
Planning and Design Manual, latest edition.
The Contractor shall control sedimentation runoff with methods
approved by the Engineer during the course of construction of this
Project. Depending on the magnitude of the clearing and grubbing
associated with the project, an Erosion Control Plan may be required
Temporary erosion and sediment control measures shall be installed as
described in Section 11 (Sediment & Erosion Control). The Contractor
shall conform to all the rules, regulations, laws, and ordinances of the
State of North Carolina, and of all other authorities having jurisdiction.
4.5 CONSTRUCTION LAYOUT
The construction layout may include, but will not necessarily be limited
to, channel disturbance limits, earthwork limits, and appropriate
grading values. The Contractor is responsible for the construction
surveying and layout. The Contractor is required to have a laser level
or other equivalent equipment available on-site during the entire period
of construction.
4.6 CLEARING, GRUBBING, AND STRIPPING
Conform to applicable codes for environmental requirements, disposal
of debris, and erosion and sedimentation control as described above.
Coordinate clearing work with utility owners and operators as
described above. Establish a schedule for daily removal of debris from
the site. Debris may not be stockpiled on-site. Clear areas required for
access to site and execution of work. Remove trees, stumps, other
wood, metal, or rubble debris within work areas.
Remove stumps, main root ball, and all roots with a diameter greater
than 2 inches. Leave area in a clean and neat condition. Grade site
surface daily to control the direction of channelized flow and prevent
free standing surface water.
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 4
In areas where bank repairs will be implemented, the existing top six
inches of soil should be removed and stockpiled prior to excavation,
construction, or reconstruction efforts.
4.7 DEWATERING
Comply with all rules, regulations, laws, and ordinances of the State of
North Carolina, and of all other authorities having jurisdiction.
Provide, without additional cost to the Owner, all labor, materials,
equipment, and services necessary to make the work comply with such
requirements. Install all barriers, erosion and sedimentation control
devices, silt fences, and other measures as required to prevent off-site
sedimentation.
Grade and ditch the site as necessary to direct surface runoff away from
open excavations and subgrade surfaces. All water drained from the
Work shall be disposed of in a manner that will not result in undue
interference with other work or damage adjacent properties, other
surfaces, structures, and utilities. All water due to the dewatering
operation shall be legally disposed of in accordance with all applicable
State and federal regulations and other applicable regulations.
Under no circumstances shall fill be placed in excavations containing
standing water without approval of the Engineer.
END OF SECTION
Technical Specifications
February 22, 2007
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SECTION 5 -EXCAVATION
5.1 SECTION INCLUDES
Provide all necessary equipment and labor to excavate for channel
restoration without damage or interruption of utility service.
5.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
5.3 REFERENCES
Occupational Safety and Health Administration -Construction
Standards for Excavations, 29 CFR Part 1926.650-.652.
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
5.4 PREPARATION
Locate, identify, and protect utilities from damage as described in
Section 4.3. Notify utility companies and coordinate for and/or install
protection of utilities.
5.5 EXCAVATING
Protect all utilities and structures that maybe damaged by excavating
work.
In areas where stream and floodplain grading will be implemented, the
existing top six inches of soil should be removed and stored prior to
construction or reconstruction efforts.
Perform Work in accordance with Occupational Safety and Health
Administration (OSHA) -Construction Standards for Excavations, 29
CFR Part 1926.650-.652. Provide trench and excavation protection as
required. Slope banks with machine to stable slope or flatter until
shored. Grade top perimeter of excavation to prevent surface water
from draining into excavation. Where required to protect utilities,
perform excavation by hand.
Remove subsoil, boulders, and rock as directed by the Engineer.
Notify Engineer if subsurface conditions require excavation of larger
subsoil, boulders, and rock, and discontinue Work. Engineer may
direct adjustment in construction elevations. Adjustment of elevations
shall not be a basis for additional payment.
Correct areas over excavated in accordance with Section 6 (Filling,
Backfilling, and Compaction) and as shown in the Construction
Drawings. Stockpile select excavated material on-site for re-use in
backfill. Stockpile location shall be subject to Owner approval.
5.6 PLANTING PREPARATION
In areas where buffer planting will be implemented, the stockpiled
topsoil and/or off-site topsoil (as required), should be distributed in
preparation for restoration planting operations as described in
SECTION 7 (Channel Protective Linings and In-stream Structures) of
these Specifications. The Contractor is ultimately responsible for
establishing a suitable planting medium with a minimum depth of six
(6) inches.
Stream Stabilization/Restoration Page 5
River Walk, Highlands NC
All areas where topsoil is distributed' shall be disked or harrowed to
ensure soil aeration and to increase the surface roughness prior to
planting.
5.7 TOLERANCES
Top surface of channel protective lining (where applicable): Plus or
minus one inch from required elevations.
Top surface of fill, backfill, and topsoil: Plus or minus one inch from
required elevations.
END OF SECTION
Technical Specifications
February 22, 2007

SECTION 6 -FILLING, BACKFILLING AND COMPACTION place. Backfill with ordinary fill material and compact to density equal
to or greater than requirements for subsequent fill material.

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6.1 SECTION INCLUDES
Provide all necessary equipment and labor to perform filling,
backfilling, and compaction necessary for construction of repaired
channel banks, and other site work as shown on the Drawings without
damage or interruption of utility service.
Replacement of removed topsoil shall be as described in SECTION 5.6
(Planting Preparation) of these Specifications.
6.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
6.3 REFERENCES
ASTM D698 -Test Methods for Moisture-Density Relations of Soils
and Soil-Aggregate Mixtures, Using 5.5 lb. Rammer and 12-inch Drop.
ASTM D1556 -Test Method for Density of Soil in Place by the
Sand-Cone Method.
ASTM D2922 -Test Methods for Density of Soil and Soil-Aggregate
in Place by Nuclear Methods (Shallow Depth).
ASTM D3017 -Test Methods for Water Content of Soil and Rock in
Place by Nuclear Methods (Shallow Depth).
ASTM D2487 -Classification of Soils for Engineering Purposes.
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
6.4 FILL MATERIALS
Soil excavated during construction and stockpiled maybe re-used as
fill provided that it can be conditioned and compacted as specified.
Supplement or replace excavated soils with channel bed material or
ordinary fill as shown on the Drawings and as needed to complete
work. Fill for Lower-Bank Zone shall consist of channel bed material
from an approved borrow source. Ordinary fill for Mid-Bank and
Upper-Bank Zones shall be any soil classified as SM, SC, SP-SM, SP-
SC, SC-SM, SP, or SW under ASTM D2487 unless otherwise directed
by the Engineer.
If soil excavated during cut operations is not re-used, it shall be
removed from the site to an appropriate disposal facility at no
additional charge to Owner. The Contractor shall be responsible for
the payment of al] fees associated with transportation and disposal of
unusable materials.
Suitable borrow material maybe available within the vicinity of the
project site but must be identified by the Contractor and approved by
the Engineer.
6.5 PREPARATION
Compact subgrade to density requirements for subsequent backfill
materials. Cut out soft areas of subgrade not capable of compaction in
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 6
6.6 BACKFILLING, FILLING, AND SURFACE PREPARATION
Backfill areas to contours and elevations with unfrozen materials. Do
not backfill over porous, frozen, or spongy subgrade surfaces. Employ
a placement method that does not disturb or damage other work.
Make gradual grade changes. Blend slope into level areas. Place
backfill and fill in loose level lifts not to exceed six inches in thickness
before compaction. Make gradual grade changes. Blend slope into
level areas.
Earth fill in repaired channel banks and other structures shall be placed
so as to meet the following additional requirements:
a. The distribution of materials throughout each zone shall be
essentially uniform and the fill shall be free from lenses, pockets,
streaks, or layers of material differing substantially in texture or
gradation from the surrounding materials.
b. Backfill areas to contours and elevations with unfrozen materials.
Do not backfill over porous, frozen, or spongy subgrade surfaces.
Employ a placement method that does not disturb or damage other
work. Place backfill and fill in loose level lifts not to exceed six
inches in thickness before compaction. Make gradual grade
changes. Blend slope into level areas.
c. If the surface of any layer becomes too hard and smooth for proper
bond with the succeeding layer, it shall be scarified parallel to the
axis of the fill to a depth of not less than 2 inches before the next
layer is placed.
d. The top surfaces of embankments shall be maintained
approximately level during construction, except that a crown or
cross-slope of not less than 2% shall be maintained to insure
effective drainage, and except as otherwise specified for drain fill
zones.
e. Repaired channel banks shall be constructed so that the slope of
the bonding surfaces between embankment in place and
embankment to be placed is not steeper than 1 feet horizontal to 1
foot vertical, unless otherwise specified on the Contract Drawings.
New embankment material shall be benched into existing slope as
shown on the plans. Short bench levels shall be formed to a slope
of 1 H:1 V or flatter, based on existing slope conditions as
determined by the Engineer at the time of construction, unless
otherwise specified on the Contract Drawings. Benching shall be
constructed in such a fashion as to inhibit the formation of
preferential planes of slope failure. The bonding surface of the
embankment in place shall be stripped of all loose material, and
shall be scarified, moistened and recompacted when the new fill is
placed against it as needed to insure a good bond with the new fill
and to obtain the specified moisture content and density in the
junction of the in-place and new fill. Any variation to this method
of tying new fill into the existing filled bank shall be determined
in the field at time of construction by the Engineer.
6.7 COMPACTION AND QUALITY CONTROL
For backfill operations, compaction shall be performed using tracked
equipment as directed by the Engineer. Compaction greater than that
provided by tracked equipment maybe deemed necessary by the
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February 22, 2007
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Engineer based on-site or soil conditions. Provide compaction as
directed by the Engineer. Lift thickness shall not exceed 6".
6.8 PROTECTION OF FINISHED WORK
Protect finished work. Reshape and re-compact fills subjected to
vehicular traffic or damaged by erosion.
6.9 TOLERANCES
Top surface of channel protection lining (where applicable): Plus or
minus one inch from required elevations.
Top surface of fill, backfill, and topsoil: Plus or minus one inch from
required elevations.
Top surface of floodplain (where applicable): Plus or minus one inch
from required elevations.
END OF SECTION
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 7
SECTION 7 -CHANNEL PROTECTIVE LININGS AND IN-
STREAM STRUCTURES
7.1 SECTION INCLUDES
Temporary and permanent channel erosion protective linings and in-
stream rock and log structures.
7.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
7.3 REFERENCES
The following specifications and methods form a part of this
Specification:
ASTM C88 -Standard Test Method for Soundness of Aggregates by
Use of Sodium Sulfate or Magnesium Sulfate
ASTM C127 -Standard Test Method for Specific Gravity and
Absorption of Coarse Aggregate
NCDOT -Standard Specifications for Roads and Structures.
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
7.4 GENERAL
A Channel Protective Lining has been selected along channel banks.
In-stream Structures will be installed to provide additional bank
protection where shown on the Drawings. Materials to be used in
Channel Protective Linings and the In-Stream Structures are specified
in this section.
Channel erosion protection linings shall be constructed of the materials
specified in this section and as shown on the Drawings. Linings shall
be laid true to the grade shown on the Drawings. Linings shall make a
smooth interface with the surrounding grade. Any portion of the lining
which has its grade or surface disturbed after placement shall be
repaired. Any portion thereof already in place which is found to be
defective or damaged shall be repaired or replaced, as directed by the
Engineer, without additional cost to the Owner.
The in-stream structures shall be constructed of the materials specified
in this section and as shown on the Drawings. Any portion of the
structure which is disturbed after placement shall be repaired. Any
portion of the structure found to be defective or damaged shall be
repaired or replaced, as directed by the Engineer, without additional
cost to the Owner.
7.5 MATERIALS
Materials include excelsior and coir fiber matting manufactured
especially for erosion control, Eco-Stakes, wire staples, nonwoven
geotextile, boulders, channel bed material, NCDOT Coarse Aggregate
Size #57, NCDOT Class A Erosion Control Stone, NCDOT Class B
Erosion Control Stone, NCDOT Class 1 Rip Rap (RipRap), and
NCDOT Class 2 Rip Rap (RipRap).
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February 22, 2007

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Matting for erosion control in areas other than stream banks with mild
slopes shall be excelsior matting. Excelsior matting shall consist of a
machine produced mat of curled wood excelsior that is a minimum of
47 inches in width. The mat shall weigh 0.975 pounds per square yard
with a tolerance of plus or minus 10 percent. At least 80 percent of the
individual excelsior fibers shall be 6 inches or more in length. The
excelsior fibers shall be evenly distributed over the entire area of the
blanket. One side of the excelsior matting shall be covered with an
extruded plastic mesh. The mesh size for the plastic shall be a
maximum of 1" x 1" square. Matting for erosion control shall not be
dyed, bleached, or otherwise treated in a manner that will result in
toxicity to vegetation. Other acceptable material manufactured
especially for erosion control maybe used when approved by the
Engineer in writing before being used.
Erosion control matting for stream banks shall be CF 7 coir matting.
Matting shall be 100% coir fiber. Minimum Specifications for coir
matting as follows:
Weight 20.6 oz/yd2 (700 g/mZ) ASTM-D3776
Thickness 6.34 mm
Water Velocity 10 ft/s
Grab/Elongation (Dry) 115.81bs/23.9% MD ASTM-D4594
54.1 lbs/33.5% XD
Manning's n 0.0294
Max Shear Stress 4.46 lb/ft2
Nonwoven Geotextile: Geotextile shall be a nonwoven fabric with a
minimum weight of 12 ounces per square yard (ASTM D3776), a
minimum grab strength in either direction of 180 pounds (ASTM
D4632), a minimum puncture resistance of (ASTM D4833) of 85
pounds, and permeability of (ASTM D4491) greater than 0.2 cm/sec.
Fabric meeting these Specifications shall still be subject to approval or
rejection by the Engineer. At the time of installation, the fabric will be
rejected if it has defects, rips, holes, flaws, deterioration, or damage
incurred during the manufacture, transportation, or storage.
NCDOT Coarse Aggregate Size #57: Shall conform to gradation
requirements of Table 1005-1, NCDOT Specifications.
NCDOT Class A Erosion Control Stone: 2 to 6-inch, widely graded,
durable, crushed stone conforming to applicable NCDOT standards
(No more than 5% of the material furnished can be less than the
minimum size specified, nor more than 10% of the material can exceed
the maximum size specified). Concrete rubble shall not be used.
NCDOT Class B Erosion Control Stone: 5 to 12-inch, widely graded,
durable, crushed stone conforming to applicable NCDOT standards
(No more than 5% of the material fumished can be less than the
minimum size specified, nor more than 10% of the material can exceed
the maximum size specified). Concrete rubble shall not be used.
NCDOT Class 1 Rip Rap (RipRap): 5 to 17-inch, widely graded,
durable, crushed stone conforming to applicable NCDOT standards.
The stone shall vary in weight from 5 to 200 pounds with 30%
weighing a minimum of 60 pounds each and 10% weighing a minimum
of 15 pounds each. (No more than 5% of the material furnished can be
less than the minimum size specified, nor can more than 10% of the
material exceed the maximum size specified). The rock fragments shall
be angular to subrounded in shape. Concrete rubble shall not be used.
NCDOT Class 2 Rip Rap (RipRap): 9 to 23-inch, widely graded,
durable, crushed stone conforming to applicable NCDOT standards.
The stone shall vary in weight from 25 to 250 pounds and 60% shall
weigh a minimum of 100 pounds each. (No more than 5% of the
material furnished can be less than the minimum size specified, nor can
more than 10% of the material exceed the maximum size specified).
The rock fragments shall be angular to subrounded in shape. Concrete
rubble shall not be used.
Boulders (Toe Stabilization and Footer Rocks): Boulders of
approximate dimension 6' x 3' x 2' shall be individually picked by
Contractor from the quarry or the on-site stockpile for use in in-stream
structure construction. Boulders as small as 4' x 2' x 2' maybe used;
however, they shall not constitute more than 30% of the total boulders.
Boulders shall be relatively flat on either side in the same dimension,
preferably the long dimension and must have smooth ends.
7.6 IN-STREAM STRUCTURES & TOE STABILIZATION
The work covered by this section consists of the construction of in-
stream structures including J-hooks, cross-vane structures, and rock toe
stabilization.
The quantity of in-stream structures and length of toe stabilization to be
constructed will be affected by actual conditions that occur during the
construction of the project. The type and quantity of structures maybe
increased or decreased at the direction of the Engineer. Such variations
in quantity will not be considered as alterations in the details of
construction or a change of character of the work.
A tracked hydraulic excavator with a thumb of sufficient size to move
specified boulders is required for this item. Precise placement of
structures will be determined during construction by the Engineer and
may not reflect the construction Drawings. In-stream structures and toe
stabilization installed must be inspected and approved by the Engineer.
Excavation for the purpose of installation is incidental and is covered
by this line item.
The excavation of the subgrade and installation will be consecutive and
continuous. Once the installation procedure has been initiated, it will
be completed before the end of the workday. Any incidental/accidental
discharge of sediment accumulation as a result of the installation
procedure will be removed or integrated into the designed bedform.
Excavation shall terminate at bedrock if contacted prior to the design
grade. Bedrock will be excavated only if it is determined to be rippable
and necessary by the Engineer.
Install toe stabilization as shown on the Drawings and as directed by
the Engineer. Grade area where toe stabilization is to be constructed.
Surface shall be free of obstructions, debris, and pockets of soft or low
density material. Unless otherwise directed by the Engineer, the stone
shall be placed on the slope and/or angle as indicated on the plans. The
stone shall be graded so that the smaller stones are uniformly
distributed throughout the mass. The Contractor may place the stone
by mechanical methods provided that when the work is completed, it
forms a properly graded, dense, neat layer of stone.
Place J-hooks and cross-vanes as shown on the Drawings. Footer rocks
shall be installed to define shape of in-stream rock structures. Footer
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 8
Technical Specifications
February 22, 2007

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rocks shall be installed such that their long dimension is oriented in the
direction of flow. No gaps shall be left between footer rocks.
Minimum footer rock depth below the proposed ground surface of the
stream bed shall be 4 feet. Rock sills shall extend a minimum of 3 feet
beyond bankfull (perpendicular to stream flow) as indicated on plans.
Geotextile shall be placed over structures and backfilled with aggregate
as shown on plans.
7.7 CHANNEL PROTECTIVE LININGS
Grade the area to be lined. Surface shall be free of obstructions, debris,
and pockets of soft or low density material. The rock weir structures
shall be completed prior to installation of the channel protective
linings.
Cover area with all available on-site stockpiled topsoil to a preferred
minimum depth of 4 inches. Final grade with topsoil shall be as shown
on Drawings. Topsoil shall be prepared with fertilizer and lime, and
seeded as described in Section 10 (Permanent Seeding) of these
Specifications. The Contractor is ultimately responsible for
establishing a suitable planting medium with a minimum depth of six
(6) inches.
Install CF-7 erosion control matting perpendicular to the axis of the
stream. The matting shall be laid smooth and free from tension, stress,
folds, wrinkles and creases. Horizontal overlaps shall be a minimum of
12 inches with the upper matting overlapping the lower matting.
Vertical overlaps in matting shall be a minimum of 12 inches with the
upstream matting overlapping the downstream matting.
The top (crest) edge of the matting shall be anchored in a trench at least
12 inches deep, as shown on the Construction Drawings, to prevent
undercutting of the matting. The trench should be located a minimum
of 12 inches from the top of bank, and shall not alter channel or
floodplain grade. Matting trench and Eco-Stakes® shall be installed as
shown on Drawings. Matting shall be anchored utilizing Eco-stake®
brand stakes installed not more than 3 feet apart (3' on centers) and
staggered, with a minimum of 3 stakes per square yard of matting over
the entire lined area. 24-inch Eco-stakes® shall be used along the toe
of the channel and 12-inch stakes shall be used within the field and top
edge of the matting as detailed on the Construction Drawings. Along
all laps (both vertical and horizontal) in the matting, install a common
row of staples at the seam, installing staples on 1 foot (12 inch) centers.
Along the toe, 24 inch Eco-Stakes® shall be spaced not more than 2
feet All stakes shall be driven perpendicular to the axis of the stream as
shown on Drawings. Care shall be taken to avoid damage to matting
material.
In the event that the matting is displaced or damaged during
installation, the matting shall be repositioned or replaced. This will be
done at no additional cost to the Owner.
7.8 SLOPE PROTECTION
Grade area to be lined. Surface shall be free of obstructions, debris,
and pockets of soft or low density material.
Cover area with all available on-site stockpiled topsoil to a preferred
minimum depth of 4 inches. Final grade with topsoil shall be as shown
on Drawings. Topsoil shall be prepared with fertilizer and lime, and
seeded as described in Section 10 (Permanent Seeding) of these
Specifications. The Contractor is ultimately responsible for
establishing a suitable planting medium with a minimum depth of six
(6) inches.
Install excelsior matting perpendicular to slope. Matting shall be
unrolled with netting material on top and blanket material in contact
with the soil. (Note: some excelsior matting has netting on both sides.)
The matting shall be laid smooth and free from tension, stress, folds,
wrinkles and creases. Horizontal overlaps shall be a minimum of 12
inches with the upper matting overlapping the lower matting. Vertical
overlaps in matting shall be a minimum of 12 inches.
The top (crest) and bottom (toe) edges of the matting shall be anchored
in trench at least 12 inches deep as shown on Drawings to prevent
undercutting of the matting. Matting trench and wire staples shall be
constructed and installed as shown on Drawings. Wire staples shall be
installed not more than 3 feet apart (3' on centers) and staggered, with a
minimum of 3 stakes per square yard of matting over the entire lined
area. Staples shall be driven perpendicular to the soil surface. Staples
shall be driven flush with soil surface to reduce potential for movement
of the erosion control matting. Staples shall be installed in parallel
rows on 3' centers and in trenches at the top and bottom of the slope as
shown on Drawings. Along all laps (both vertical and horizontal) in
the matting, install a common row of staples at the seam, installing
staples on lfoot (12 inch) centers. All standard anchoring staples shall
be 18 inches in length. Staples shall be driven in with a wooden
mallet. Care shall be taken to avoid damage to matting material.
In the event that the matting is displaced or damaged during
installation, the matting shall be repositioned or replaced. This will be
done at no additional cost to the Owner.
END OF SECTION
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 9
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SECTION 8 -STREAM BANK PLANTING
8.1 SECTION INCLUDES
Provide all necessary equipment and labor to implement stream bank
planting plan.
8.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
8.3 REFERENCES
The following specifications and methods form a part of this
Specification:
NCDOT -Standard Specifications for Roads and Structures.
15 NCAC 2B.200 -Classification of Water Quality Standards
Applicable to Surface Waters & Wetlands of North Carolina
The Baily Hortorium (1976 MacMillan Publishing Co., Inc.)
American Standard for Nursery Stock, latest edition
NCDENR -Erosion and Sediment Control Planning and Design
Manual
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
8.4 GENERAL
All plants shall be as called for by these Specifications and shown on
the Drawings. Botanical names referred to in the Drawings are taken
from "Hortus Third", the Baily Hortorium (1976 MacMillan Publishing
Co., Inc.). All plants delivered shall be true to name. Each plant, or
group of the same species, variety, and size of plant, shall be legibly
tagged with the name and size of the plant.
All plants shall be first-class representatives of their species. Stakes
shall be reasonably straight.
All plants shall be free from plant diseases and insect pests. All
shipments of plants shall comply with all nursery inspection and plant
quarantine regulations of the States of origin and destination, as well as
with Federal regulations governing interstate movement of stock. If
stock from other States is used, the stock shall be accompanied by a tag
or certificate stating, in effect, that the stock has been inspected and
certified by an authorized official of the State of origin as apparently
free from injurious plant pests.
All plants shall be subject to inspection at any time by the Engineer
Any such inspection before or during planting operations, however
shall not be construed as final acceptance of the plants involved.
8.5 LIVE STAKES
Live stakes, if approved for use by the Engineer, shall consist of freshly
cut live plants of select stock which has been developed by proper
cultural treatment. Stakes and cuttings shall be 3/8" to 1/2" diameter
and between 12 and 18 inches long. They shall be carefully cut from
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 10
mother-stock plantings. Plant materials shall be packaged, transported,
and handled in a manner that will prevent injury, drying out, or
freezing.
8.6 PLANT SUBSTITUTION
No change in the specified plants (species, variety, size, caliper,
furnish, etc.) will be made without written approval of the Engineer.
All requests by the Contractor for substitutions shall be presented in
writing and shall include a listing of the sources which have been
contacted in an attempt to secure the specified plant material. Requests
for substitutions shall include botanical name, common name, size,
caliper, and furnish description of the proposed substitute. No increase
in compensation will be made to the Contractor as a result of the use of
the approved substitute plants.
8.7 PLANTING PREPARATION
In areas where stream restoration will be implemented, preparation for
restoration planting operations shall be as described in SECTION 7
(Channel Protective Linings) of these Specifications.
Where live stakes shall be planted, through the Channel Protective
Lining, holes shall be made by neatly punching a hole in the matting
with a dibble bar (a heavy metal tool with a blade and a foot petal).
The dimensions of the hole shall not exceed 3" in any direction and
shall not damage the surrounding matting.
8.8 STREAM BANK PLANTING
Where live stakes shall be planted, they shall be installed at a 45 to 60
degree angle in the direction of stream flow. The buds of stakes and
plant cuttings should point upward and about 2 inches of wood should
be exposed above the ground surface. Tamp the surrounding soil
firmly to eliminate air pockets.
Where stream bank planting is directed, areas shall be planted with
trees and shrubs, using 6-foot by 6-foot centers as shown on the
Construction Drawings.
Care should be taken to avoid planting stakes too deep or too shallow,
and to avoid damage to stakes during planting. Planting depth should
be in accordance with listed references and supplier recommendations.
8.9 PLANTING PERIODS
The installation of live stakes, bare root, or container grown plants
shall be performed between October 1 and November 15, 2005.
However, planting can not begin until all stream repairs have been
completed.
8.10 REMOVAL OF NUISANCE VEGETATION
Removal or control of nuisance vegetation shall be performed for a
period of 90 days as necessary to ensure adequate survival of specified
plant species. See SPECIAL CONTRACT PROVISIONS.
8.11 WATER FOR PLANTINGS
The Contractor shall install a rain gage and collect daily gage readings
at the site. Contractor shall provide initial watering on the day of
planting and thereafter at a minimum rate of 1 inch per week (including
rainfall) for a period of 90 days. Water used in the planting or care of
Technical Specifications
February 22, 2007
1

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SECTION 9 -BUFFER PLANTING

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vegetation and plantings shall meet the requirements of Class C fresh
waters as defined in 15 NAC 2B.200. See SPECIAL CONTRACT
PROVISIONS.
8.12 SUBMITTALS
Contractor shall submit purchase certificates (or other proof) of all
species planted.
END OF SECTION
9.1 SECTION INCLUDES
Provide all necessary equipment and labor to implement buffer planting
plan.
9.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
9.3 REFERENCES
The Baily Hortorium (1976 MacMillan Publishing Co., Inc.)
American Standard for Nursery Stock, latest edition
NCDENR -Erosion and Sediment Control Planning and Design
Manual
15 NCAC 2B.200 -Classification of Water Quality Standards
Applicable to Surface Waters & Wetlands of North Carolina
The following specifications and methods form a part of this
Specification:
NCDOT -Standard Specifications for Roads and Structures.
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
9.4 GENERAL
All plants shall be as called for by these Specifications. Bare rooted
plants maybe used in lieu of container grown plants provided written
approval for such use has been obtained from the Engineer. Grading of
plants, type and minimum dimensions of containers shall conform to
the Specifications contained in the latest edition of American Standard
for Nursery Stock. Plants shall not be cut back from larger sizes to
meet sizes called for on the Drawings. Botanical names referred to in
the Drawings are taken from "Hortus Third", the Baily Hortorium
(1976 MacMillan Publishing Co., Inc.). All plants delivered shall be
true to name. Each plant, or group of the same species, variety, and
size of plant, shall be legibly tagged with the name and size of the
plant.
All plants shall be first-class representatives of their species. The root
system shall be vigorous and well-developed. The branch systems shall
be of normal development, and free from disfiguring knots, sun scald
injuries, abrasions of the bark, dead or dry wood, broken terminal
growth, or other objectionable disfigurements. Trees shall have
reasonably straight stems, and shall be well branched and symmetrical
in accordance with their natural habits of growth.
All plants shall be free from plant diseases and insect pests. All
shipments of plants shall comply with all nursery inspection and plant
quarantine regulations of the States of origin and destination, as well as
with Federal regulations governing interstate movement of nursery
stock. If nursery stock from other States is used, the stock shall be
accompanied by a tag or certificate stating, in effect, that the nursery
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 11
Technical Specifications
February 22, 2007
1

stock has been inspected and certified by an authorized official of the
State of origin as apparently free from injurious plant pests.
All plants shall be subject to inspection at any time by the Owner,
Engineer, or a party to be named by the Owner. Any such inspection
before or during planting operations, however shall not be construed as
final acceptance of the plants involved.
9.5 CONTAINER GROWN PLANTS
Container grown plants shall be healthy, vigorous, well-rooted, and
shall have become established in the container in which they are
delivered. These plants shall have been in the established container
long enough for the fibrous roots to have developed so that the root
mass will retain its shape and hold together when removed from the
container. The container shall be a 1 gallon container or larger,
sufficiently rigid to firmly hold the soil protecting the root during
transporting, handling, and planting, and the soil shall not be allowed
to become frozen.
9.6 BARE ROOT PLANTS

1

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Bare root plants, if approved for use by the Engineer, shall have a
heavy fibrous root system which has been developed by proper cultural
treatment. They shall be dug, packaged, transported, and handled in a
manner that will prevent injury to or drying out of the trunks, branches,
or roots, or freezing of the roots.
9.7 PLANT SUBSTITUTION
No change in the specified plants (species, variety, size, caliper,
furnish, etc.) will be made without written approval of the Engineer.
All requests by the Contractor for substitutions shall be presented in
writing and shall include a listing of the sources which have been
contacted in an attempt to secure the specified plant material. Requests
for substitutions shall include botanical name, common name, size,
caliper, and fumish description of the proposed substitute. No increase
in compensation will be made to the Contractor as a result of the use of
the approved substitute plants.
9.8 PLANTING PREPARATION
In areas where wetland and buffer planting will be implemented,
preparation for planting operations shall be as described in SECTION
5.6 (Planting Preparation) of these Specifications.
Where container grown plants will be planted, holes made in
preparation for tree and shrub species planting shall be as shown on the
Construction Drawings.
Bare root plants and container-grown plants shall be planted in holes
made by neatly punching a hole through slope protection matting and
into existing grade with a dibble bar (a heavy meta] tool with a blade
and a foot petal). The dimensions of the hole shall not exceed 3" in any
direction.
9.9 PLANTING PERIODS
The installation of bare root and container grown plants shall be
performed between October 1 and November 15, 2005. However,
planting can not begin until all stream repairs have been completed.
9.10 REMOVAL OF NUISANCE VEGETATION
Removal or control of nuisance vegetation shall be performed for a
period of 90 days as necessary to ensure adequate survival of specified
plant species. See SPECIAL CONTRACT PROVISIONS.
9.11 WATER FOR PLANTINGS
The Contractor shall install a rain gage and collect daily gage readings
at the site. Contractor shall provide initial watering on the day of
planting and thereafter at a minimum rate of 1"per week (including
rainfall) for a period of 90 days. Water used in the planting or care of
vegetation and plantings shall meet the requirements of Class C fresh
waters as defined in 15 NAC 2B.200. See SPECIAL CONTRACT
PROVISIONS.
9.12 SUBMITTALS
Contractor shall submit purchase certificates (or other proof) of all
species planted.
END OF SECTION
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 12
Technical Specifications
February 22, 2007

' SECTION 10 -PERMANENT SEEDING
10.1 SECTION INCLUDES
Permanent seeding for permanent site stabilization.
Areas with Channel Protective Linings:
10.2 MEASUREMENT AND PAYMENT
Species Rate (lbs/acre)
See SPECIAL CONTRACT PROVISIONS Creeping Red Fescue 80
(Festuca ruba ruba)
10.3 REFERENCES Redtop 15
(Agrostts stolonifera L.)
The following specifications and methods form a part of this Kentucky bluegrass 15
Specification: (Poa pratensis L.)

NCDENR -Erosion and Sediment Control Planning and Design Rye (grain) Grass 15
(Secale cereale)
Manual
All other disturbed areas:
' When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall Species Rate (lbs/acre)
apply. Creeping Red Fescue 80
(Festuca ruba ruba)
10.4 GENERAL Redtop IS
Permanent seeding shall be executed in temporary lined areas and all (Agrostis stolonifera L.)
other areas which are disturbed during construction activities. In areas
seedbed preparation
where Channel Protective Lining will be installed Kentucky bluegrass
(Poa pratensis L.) I S
,
and seeding shall be performed prior to the placement of erosion Rye (grain) Grass 15
control matting (See SECTION 7 -Channel Protective Linings). (Secale cereale)
10.5 SEEDBED PREPARATION Mulch Rate (Ibs/1000 sg.ft.)
Grain Straw 70
Complete grading before topsoiling or preparing seedbeds. Avoid
creating steep slopes. Excess stockpiled topsoil not used in
construction of Channel Protective Lining shall be redistributed across
areas to be seeded. Where topsoil is unavailable, seedbeds may be
prepared directly on the exposed finished grade or topsoil maybe
imported.
If topsoil is used, it should be spread to a uniform depth of four to six
inches and bonded to the subsoil by loosening with a disc, harrow, or
chisel plow. Areas where seeding will occur on exposed finished grade
shall be disked or harrowed to ensure soil aeration and to increase the
surface roughness prior to planting.
Apply lime and fertilizer evenly across seedbed and work into the top
4-6 inches of soil by discing or other suitable means. Operate
machinery on the contour.
Rework the surface if soil becomes compacted or crusted prior to
seeding. Complete seedbed preparation by breaking up large clods and
raking into a smooth, uniform surface. Fill in or level depressions that
can collect water.
10.6 SEEDING
Anchor mulch with netting in areas subject to concentrated flow. In
areas where Channel Protective Lining will be installed, no mulch shall
be used and erosion control matting shall be placed within 24 hours of
seeding. Apply seeds and mulch at the rates indicated below.
10.7 SEEDING DATES
Seeding dates given in these Seeding Specifications have the best
probability of success.
Best Possible
Late winter 15 Feb-15 Mar 1 Dec-15 Mar
Late Fall 1 Sept-30 Sept 1 Oct-30 Nov
Seeding shall be completed within the "possible" range of dates.
10.8 SOIL AMENDMENTS
Apply lime and fertilizer according to soil tests, or apply Ztons/acre
(4,000 lb/acre) ground agricultural limestone and 1,000 lb/acre 5-10-10
fertilizer, or as directed by the Engineer.
10.9 MULCH
Apply grain straw, or equivalent cover of another suitable mulching
material as described above. Anchor mulch by roving or netting.
Netting shall be used on slopes steeper than 2H:1 V.
Apply permanent seeding to seedbed after preparation is complete. Use
certified seed for permanent seeding whenever possible. Certified seed
is inspected by the North Carolina Crop Improvement Association. It
meets published North Carolina Standards and should bear an official
"Certified Seed" label. Broadcast seed into a freshly loosened seedbed
that has not been settled by rainfall. Mulch must be used on slopes
4H:1 V or steeper and in areas when concentrated water may flow.

END OF SECTION
Stream Stabilization/Restoration
River Walk, Highlands NC
Page 13
Technical Specifications
February 22, 2007
J

SECTION 1 I -SEDIMENT & EROSION CONTROL Drawings. The filter fabric shall be stapled or wired to each post. The
filter fabric shall extend into the ground as shown in the Drawings.

1

11.1 SECTION INCLUDES
Installation of temporary sediment and erosion control measures to
include installation of silt fence and temporary seeding measures. The
Contractor shall maintain these measures to ensure proper structure
function and vigorous temporary vegetative cover during construction.
11.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
11.3 REFERENCES
The following specifications and methods form a part of this
Specification:
ASTM D4355 -Standard Test Method for Deterioration of Geotextiles
from Exposure to Ultraviolet Light and Water (Xenon-Arc Type
Apparatus)
ASTM D4632 -Standard Test Method for Grab Breaking Load and
Elongation of Geotextiles
ASTM D4751 -Standard Test Method for Determining Apparent
Opening Size of a Geotextile
NCDENR -Erosion and Sediment Control Planning and Design
Manual
When the Specifications or Drawings differ from the requirements of
the above-referenced documents, the more stringent requirements shall
apply.
11.4 MATERIALS
If possible, the filter fabric shall be cut from a continuous roll to avoid
the use of joints. When joints are necessary, securely fasten the filter
cloth only at a support with overlap to the next post.
Silt fences shall be inspected weekly and after each significant storm (1
inch in 24 hrs.). Any required repairs shall be made immediately.
Sediment shall be removed when it reaches 1/3 the height of the fence
or 9 inches maximum. Dispose of the sediment in the designated
disposal area.
11.6 TEMPORARY SEEDING
The Contractor shall provide all labor, materials, tools, and other items
necessary to provide temporary seeding in accordance with State and
local Standards.
Areas where no substantial or significant progress is made for more
than 15 days shall be temporarily seeded as shown on the Drawings and
specified herein. All areas must be seeded, mulched, and anchored
unless written approval is granted by the Owner. Incidental grading
shall not constitute substantial or significant progress in construction
activity.
Seeding and mulching shall be done immediately following
construction. All disturbed areas shall be dressed to a depth of 8
inches. The top 3 inches shall be pulverized to provide a uniform
seedbed.
Agricultural lime shall be applied at a rate of 2,000 pounds per acre
immediately before plowing.
Grass seed shall be applied at the following rate:

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J
Silt Fence: Silt fence shall have steel posts, woven wire fabric, and
filter fabric. The steel post shall have a minimum length of 5' and
minimum width of l 3/4". The steel posts shall have projections for
fastening the wire to the fence. The woven wire fabric shall be at lest
32 inches high, and shall have at least 6 horizontal wires. Vertical
wires shall be spaced a maximum of 12 inches apart. The top and
bottom wires shall be at least 10 gauge. All other wires shall be at least
12'/2 gauge. The silt fence filter fabric shall meet the following
minimum criteria:
Grab Tensile Strength 1001bs.
' Grab Tensile Elongation 15
UV Resistance 70
Apparent Opening Size (AOS) 20 (US Sieve)
11.5 SILT FENCE
The Contractor shall provide all labor, materials, tools and other items
necessary to furnish and install the silt fence as shown on the Drawings
' and specified herein. The silt fence shall be placed following the
contours as closely as possible. The ends of the silt fence shall be
turned uphill.
' The posts shall not exceed a spacing of 8 feet. The posts shall be
driven into the ground and shall extend above ground as shown on the
' Stream Stabilization/Restoration Page 14
River Walk, Highlands NC
Twe Dates Possible Rate
Rye (Grain) Aug. 15 -May 1 601bs./ac.
German Millet Mayl -Aug 15 40 lbs./ac.
10-10-10 fertilizer shall be applied to all disturbed areas at a rate of 750
pounds per acre, and mulching shall consist of small grain straw
applied a rate of 70 pounds per 1000 square feet (701bs./1000sq.ft.).
Mulch shall be anchored by roving or netting.
END OF SECTION
Technical Specifications
February 22, 2007

SECTION 12 -SITE MAINTENANCE
' 12.1 SECTION INCLUDES
Site maintenance to ensure vigorous vegetative cover, stable channel
lining, and durability of the work.
12.2 MEASUREMENT AND PAYMENT
See SPECIAL CONTRACT PROVISIONS
' 12.3 EXECUTION
Contractor shall revisit the site as required in the special contract
provisions to inspect the condition of the project site. Areas of erosion,
settlement, poor vegetative cover, and displaced coir or excelsior
materials or in-stream structures, shall be repaired. Site visits shall be
coordinated with Owner.
Erosion areas shall be filled and reseeded in accordance with Section
10 -Permanent Seeding. Areas of poor vegetative cover shall be
reseeded and refertilized only.
Displaced, damaged, or dead shrub species shall be removed, and
replanted in accordance with Sections 8 & 9 -Stream Bank Planting
' and Buffer Planting.
Displaced channel lining materials shall be recovered (if possible) and
replaced, or replaced with new channel lining materials to the design
' line and grade.
END OF SECTION

r

Stream Stabilization/Restoration Page 15
River Walk, Highlands NC
Technical Specifications
February 22, 2007

1
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APPENDIX B
CONSTRUCTION DRAWINGS

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VICINITY MAP
(NOT TO SCALE)
ENGINEERING DESIGN FIRM:
McGILL ASSOCIATES
420 EAST PARK AVENUE, SUITE 305
GREENVILLE, SC 29601
(864) 555- 12 12
PREPARED FOR:
RIVERWALK IN 111GhLANDS, LLC
3 RAVI NA DR, STE 1150
ATLANTA, GA 30346
CONSTRUCTION DRAWINGS FOR:
RIVERWALK SUBDIVISION
CENTRAL CORRIDOR
RESTORATION-STABILIZATION PLAN
MACON COUNTY, NC
CONTENTS:
C-00 I . COVER, CONTENTS, ~ VICINITY MAP
C-002. GENERAL CONSTRUCTION NOTES ~ LEGEND
C-003. SITE PICTURES
C-004. DRAINAGE AREA
C- 100. SITE OVERVIEW
C- I 0 I . PLAN Sf1EET #
C- 102. PLAN SKEET #2
C- 900. STANDARD DETAILS- STREAM RESTORATION/STABILAZATION
C- 90 I , STANDARD DEATILS- EROSION CONTROL
200T0 349
PRELIMINARY
FOR REVIEW ONLY
.~`~c~~~ CAR~~ ~''%
C- 110. DEMOLITION PLAN = o SEAL o
_ 28628
C-III . EROSION CONTROL PLAN # I ~-;9s ~~~~NE~~~~:'
/'O~n~Pi~JO~~`\\
C- 112. EROSION CONTROL PLAN #2 NOT FOR CONSTRUCTION
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SHEET
C-001

NPDES STORMWATER
REQUIREMENTS FOR CONSTRUCTION SITES
FEDERAL NPDES STCAtMWATER PHASE II REWIRFMFN75 SHALL BE MET BY THE CONTRACTOR FOR All
CONSTRUCna SITES LARGER THAN 1 ACRE EFFECnVE MARCH 10. 2003. THESE REWIRFMENTS ARE
SUMMAPoZED AS FOLLOWS:
1. - INPLEMFNT THE APPAO4ED EROSION AND SEDIMENTAnON CONTROL fR.AN AND KEEP A COPY OF
1HE PLAN ON 91E DENAnON FR011 THE APPROVID EROSION AND SEDILIENTAl10N CONTROL PLAN
MALL BE CONSKIERED A VIOLA1K11 OF THE FEDERAL NPDES CBIE1tAL PERMIT.
2 - PREVENT SPIWNG OF FUELS, LUBPoCANT$ COOLANTS HYDRAULIC Fl.UID$ AND ANY OTHER PE1ROlEUM
PRODUCTS ONTO THE GROUND OR INTO SURFACE WATERS. gSPOSE OF SPENT FUE7.5 APPROPPoATFLY.
1 - USE NERBIgDE$ PESIIgDES AND FERnU2ER IN A MANNER CONSISTENT 'Mni THE FEDERAL INSECTIgOE,
fUNGK1DE AND AODENngDE ACT AND IN ACCOftDANgi TW1H LAEEL RESTRICnONS
4. - CONTROL MANAGEMENT AND DISPOSAL CF UTTER AND SANITARY WASTE FROM THE SITE SO THAT NO
ADVERSE IMPACTS TO WATER WALRY OCg1R.
5, - INSPECT ALL EROSION AND SEgMENTARON CONTROL FAgUnES EVERY SEVEN CALENDAR DAYS (TRICE IN
SEVEN CALENDAR DAYS FOR 5TORMWATER dSCHARCES TO STREAMS ON 1HE LATEST EPA-APPROVED 303(d)
UST) AND INiHIN 24 HOURS OF ANY 51T1RM EVENT DF MORE THAN 0.5 INCH OF RAIN IN A 24-HWR
PEPo00. MAINTAIN A RAM GAUGE ON SITE AND KEEP A RECORD OF THE RAMFALL AMOUNTS AND DATES
6. - OBSERVE STORMWAIER RUNOFF gSgHARCES AND LOOK FOR gAPoTY, FlAADNG SIXID$ SUSPENDED 0E5,
dL SHEEN AND O7NER OBV1W5 INOICAlORS OF POW1nON AND EYP.LUATE THE E1T1ECnVENE55 OF THE
ER0510N ANO SEgYENTAnON CONTROL MEASURES IF SEDAIENTARCM IS LEAVING 111E DISTURBm AREA,
TAKE IMMEDIATE ACRON 1D CONTROL 1HE gSgiARCE
7. - KEEP A RECORD OF INSPECTIONS RECORD ANY WSIBLE SEDIMENTAnON FOUND W751DE 1HE DIS7UREIED
LBIIT AND RECORD MEASURES TAKEN TO CLEAN UP 1HE SEDIMENT. MAIq 1HESE RECORDS AVAILABIF 10
1HE gVISION aF WAIEA OUMITY OR ITj AUIHOAIZED AGENT UPON REWEST.
8. - MAINTAIN EROSION AND SETMMENT CONTROL MEASURES TO KEEP THEM OPERAnNG AT OPnMUM EPFlgENCY.
CONTACT THE CONTRACTOR FOR A COPY aF THE ffi!®AL PEA111T TD OISWARGE S70RMWATER UNDER
THE IunONAL POLLUTANT DISCHARGE ELMIINARON SYSTk]A.
NOURONS OF 1HE NPDES SIOAMWATER RULES CONSnn1TE A NOLAnON OF THE FEDERAL CLEAN WA1ER
ACT AND ARE SIIB,ECT TO gYIL PENALTES OF UP TD X27,000 PER DAY. UNDER STATE LAW, A OAKY
qVE. PENALTY OF X10,000 PER VIOIAl10N CAN BE ASSESSED FOIL NdAnON OF TERNS OF 1HE PERMIT.
NORTH CAROLINA LAND QUALITY SECTION
EROSION CONTROL NOTES
CgJFRW ALL FA09a CaRKtI. NEASJAES AAE N ~ PQ9DRYm IN S1PoCi ACCONDANCE NTH REQdREMO175 OF 1HE
NORTH CPRd1NA DFPARTNFNT CF BVMRaNFNT AND NANRw RESWRCFS, OIM9OV CF LINO RESWRpS, IJJ10
Wwtt SECiIa. THE FOLLON1NC CON9IXUCTNN SEd1EliCE 5HP1L BE COMPLLm N17H FOR All WORK
1. - PRIOR TO OEpJHING WOPoL a THE PROECT TEE CONiRACTWt SHALL OBTPIN FAa THE OWNER A COPY ~ THE
FROSa ANO SmINFNT CONTROL APPROVAL' FROM THE NORTH GVtWNA OEPARTYENT Cf FNVRONMFNT ANO
NANRAL PoSWRCE$ dW9a OF LWD Wwtt, OR THE LOCAL wTFKS62ID PROdtAN. THE APPROVAL NORCE
NUSi BE AVARABLE a-SITE WRING ALL dtAMN6 wD CON57RUCTKN ACTMIIES
2 - INSTALL ALL EROSION CONiR(IL MEA9JR6 AS REWRffD BY THE NORTH CARWNA DFPARINENT OF ENNRONNENT
LINE 4,000 LBS
ET:Rnumt {1o-1o-10) tooD LBS
KY-31 FFSWE 10D LB5
STRAW MULDt 50-80 BALES
FOR SUMMER SEDING ADD 70 THE ABOVL
GFAl1AN MILLET 10 LBS
SUDAN GRASS iS l85
FOR wNIFA SEIDING ADD TD THE ABOVE
RYE GRAIN 15 LBS
FOR ALL SLOPES Pt OR SIEEPOt ADD 70 THE ABOVE:
SEPoCE4 LESPEDEZA 40 lBS
IF HY-ROS®NG, MULCH SHALL BE A 19NINUM 7010 WOOD FlBeS 30i CELUIDSE
NY1MaULCH MIX SHALL BE APPIIm hT A MIMNUY RAZE OF 2000 l85/ACRE.
All SFIDING SHALL BE MAIHTAINm, WA7FAm ETC., aRL A PERMANENT VFOETARVE GROaD COYER IS
ESTABLL9im OVER ALL DISTURBED ACAS
ALL SLOPES 21 OR 5RII+ER 91All EE C0V4RID BY m09a CaTAOI NATRNG
NhRVE PLAVT SfEDIN6 NIK FOR STREAM a PoVF3PoANK STABIUTAiKN
SEIDINC FOR SRffAM a PoVWBANK STf&l7ARa SHAH ~ A MIXNRE W NARVE GRASSES PIAN15 ANO Tfh'ES.
NARYE PUNT YIK SHALL INCWOE THE Fg101WNd
dtAS35 - BC BWE9IDA AidAN dtASS, LIFlLE WDfS'R)J, SWTCHdtASS B LBS/ACRE EACH
wGUST THRU NAY - 6TEDIRYE 75 LBS/ApE EAgi
WAY 1 1HPo1 AUWST -MILLET TS LBS/ACRE EACH
TREES - slue DoGwDOO (caRNUS AYaa), sutY WLLOw (swK sEPoDEA), HA2a amER
(ALMUS SFRRULITA) AND DDDtBmRY (SAMBIlEUS CANADENMS)
NARVE RANT r% VAPoATIONS slw. BE APPROVID BY ENGINEER.
NOTE NO FFRRU2ER SHALL BE LIgD YATHN 10' OF TOP OF SIPfAM a PoVER BANK
7. - MNNTNN 905, EROSIa Ca1ROL NEASIRES I1HTLL PERMANENT CRWIID COVER IS ESFABLL9Hm.
S - R610VE SdL EItO5101J CaTRq. MFA9IAES ANO STA&U2E THESE AREAS
B. - REWEST FlNAL APPROVAL BY 1HE NORTH CARWNA OEPARINENT aF FNNRONMENT ANB NANRw
RESWRDLx aMSaN ~ IANO R13WRpS, LAND Wwtt s,:cna.
GENERAL CONSTRUCTION NOTES
1. FlNISH GRADE TOLERANCES SHALL RE AS NOTED IN THE SPEgFlCAilONS. iNE ENdNEER MAY
MAKE GRADE CHANGES AS REWIRED M THE FlELD W11HWT EFFECTING THE UNIT BID PRICE
FOR UNCLASdFlED E%CAVARON.
2 UNLESS OTHERWISE STATED, ALL FlLL AREAS SHW1 BE CONSTRUCTm IN LAYERS OF B' MAIOMUM
1HICKNES$ WTH WATER ADDED OR SOIL CONDITIONED TO THE OPnMUM MGSNRE CONTENT AS
DETERMINED BY THE ENdNQt AND COMPACTED WITH A SHEEP'S F00T ROLLER TO A COMPACTNN
EWw TO OR GREATER THAN 95x (100% M THE TOP 2' OF 7NE SUB GRADE BELOW ROADWAYS AND
PARKING LOTS) OF 1HE DENSItt OBTAINED BY COMPACTING A SAMPLE OF THE MATERIAL M
hCCORDANCE N1TH THE STANDARD PROCTa MEHOD OF MdSNRE-OF11Stt REL4nONSHIP TEST,
ASTM D6B6 CR AA6HT0-BB UNLESS SPEGFlm IN OTHER SPEpFICAl10NS.
3. ALL SqL EROSION CONTRq. MEASURES REWIRED BY THE GRADING PLAN SHALLL BE PERFORMm
PRIOR 70 CRAGNC, GEARING OR dtUBBINC. All EA090N CONTROL DEVICES SUCH AS SILT
FENCES, ETC., SHAM BE MAINTAINED IN WORKABLE CONDIDON FOR THE LIFE OF THE PROJECT
AND SHALL BE REMOVED AT THE COMPLETION DF THE PAO~ECT ONLY ON DIE ENpNEFR'S
APPROVAL PAYMENT SHALL BE CONSIOFRED INGDENTAL TO CLEARING wD GRUBBING. IF DUPoNG
THE LIFE pF THE PROJECT, A STORM CAU~S SOIL EROSION WHipi CHANGES FlNISH GRADES OR
CREATES 'GUWES' AND 'WA.9iED AREAS', THESE SHALL BE IhPAIAED AT NO EI(TRA COSL AND
ALL SILT WASHm OFF OF THE PROJECT SITE ONTO ADJACENT PROPERTY 5HA1L BE REMOVED AS
dREC1ED BY THE FNpNEIIt AT NO EXTRA COST. THE CONTRACTOR SHALL ADHERE TO ANY
MPROVEO ERDSIa CONTROL PLANS WHETHIR INDICATED IN THE CaSIRUCna PLANS OR UNDER
SEPARATE CDV1R.
4. gSPOSABLE MATERIw
A CLEARING AND GRUBBING WASTES SHALL BE REMOVED FROM THE SIZE AND PROPERLY
DISPOSED OF BY THE OONTRACIDR AT HIS EKPfDISE, UNLESS SPEGFAD OIHERN95E
8. SgJO WASTES 1D BE REMOVED, SUpI AS SIDEWALKS WRB$ PAVEMENT, ETC., MAY BE
PUCFD IN SPEgFlC DISP~AL AREAS DELMEATFD ON THE PLANS OR REMOVED FROM THE
SITE AS REWIRED BY THE SPEGFlCATTONS. THIS MATERIAL SHALL HAYS A MINIMUM COVER
OF 2'. il# OONTRACTOR SHALL MAINTAIN SPEgFlED CONPACDa REWIREMENTS IN 1NESE
AREAS. WHEN DISPOSAL SITES ARE NOT PROVIDED, THE CaTRwTOR SHALL REMOVE THIS
WASTE FROM THE 9iE AND PROPERLY DISPOSE OF IT AT HIS EXPENSE
C. ABwOam UTWDES SUCH AS WLVERiS, WATER PIPE, HYdtwT$ CASRNC$ FlPE
APPURTFNANCE$ UnLJtt POLES EEG, SHAJl BE 1HE PROPETttt OF THE SPEGFlC UDUtt
AGENCY, OR CdAPANY HANNC .UAISDICDON. BEFORE THE CONTRACTOR CAN REMOVE,
DESTROY, SALVAGE, REUSE, SELL OR S1IXtE FOR HIS OWN USE ANY ABANDONED UnLltt,
NE MUST PRESENT TO 1HE OWNER WRITTEN PERMISSIpI FRa 1HE UTILITY INVDLVID.
0. GN SITE BURNING IS w ACCEPTABLE METHOD OF DISPOSING OF FtAMMABIF WASTES, WHEN
BURNING IS ANRgPATEO, THE CONTRACTOR SHAH BE RESPON98LE FOR OBTAINING ALL
NECESSARY PERMITS AND MEEnNG GOYIIiNIIJC CODES THE CONTRACTOR SHALL NOnFY
THE ENdNEER Oft HIS RFPR(SEIITAnVE AS TO THE SPEgFlC LOCADON OF BURNING
AFTER BURNNG IS CDMFLEIfm, PURE ASH MAY BE gSoOSED OF BY MIgNG WI1N FlLL
DIRT. All MATERIAL NOT TOTALLY BURNED SHALL BE DISPOSED ~ PS SPEGFlED IN 'B'
ABOVE THE CONTRACTOR SHALL NOT HdD UP WORK PROGRESS FOR 1HE PURPOSE OF
WAITING FCR A 'BURNING DAY.
5. M 'RTE EVENT IXCESSIVE CRWNDWATER a SPRINGS ARE ENCOUNTERED 'MTHIN THE LIMITS OF
CONSIRIICRON, THE CONTRACTOR SHALL INSTALL NECESSARY UNDER DRA1N5 AND STONE
AS DIRECTED BY THE ENGINE7R ALL WORK SHALL BE PND BASED UPON UNIT BIDS
UNLESS SPEgFlED OTHER'MSE
6. THE CaTRACTOR IS RESPONSJBLE Fa THE COORDINAnON OF AD.USIMENT GF ALL UnU1Y
SURFACE ACCESSES WHEMER HE PERFORMS THE WOfBC OR A UnlJtt COMPANY PERFORMS THE WORK.
7. THE Ca1RACTOR SHALL CONTROL ALL 'OUST' BY PERIODIC WATeRMG AND SHALL PRONDE ACCESS
AT ALL ONES FOR PROPERTY OWNERS MniIN THE PRO,ECT AREA AND FOR EMERGENCY VEHICLES
ALL OPEN DITCHES AND HAZARDWS AREAS SHALL ~ CLEAPLY MARKED IN ACCORDwCE WTH THE
SPEGFlCAROVS
& ALL AREAS NHERE 1HERE IB EAPOSED DIRT SHALL BE SEEDED, FTRnLIZED AND MULCffrD
ACCO~INC TO THE SPEgFlCADONS THE FlNISHED SIIRFACE SHALL BE TO GRADE AND SMOOTf{
FREE OF ALL ROCKS LARGER THAN 3', EWIPMENT TRACKS, DIRT CLODS BUMPS RIDGES AND
GOUGES PPoOR TO 5®INC, THE SURFACE SHALL BE LOOSENED TO A DEPTH OF t4'-B' lO
ACCEPT SEED. 1HE CONTRACTOR SHAlJ- NOT PROC® N1TH SEmING ~ERAnONS WTHOUT FlRST
OBTAINING THE ENpNFAt'S APPROVAL Cs THE aADm SURFACE ALL SEEDNG SHALL BE
PERFptMEO BY A MECHANICAL °kYDRC-SEIDER'. HAND SEEDING SHALL BE AUTHOPoZED ON AN AREA
BY AREA APPROVw RY THE [':'GIIEER.
B. WHERE SPEgFlm, S70RN gtA1N PIPE SHALL BE CORRUGATED METAL PIPE (CMP) CONFORMING TD
AASHTO M-36, PATH RFROLLID ENDS TD ACCOMM~ATE CORRUGATED COUPLING BANDS. i6' PIPE
SHALL BE 16 GwGE, 24' wD 30' PIPE SHALL BE 14 GAUGE AND 76' PIPE AND OVER SHAll BE
12 CwGE AS SPEgFlED ON THE PLANS, PIPE AND CWPUNC BANDS SHALL CONfgtM TD NCDOT 1032-3 FOR
PWN fMPE OR 1032-4 (A) FOR BINMINWS COATED AN[1 PARDALLY PAVED PIPE DIMPLE BANDS SHALL NOT
BE USm.
NTIERE SPEpFl®, STORK DRAIN PIPE SHALL BE RENFORCED CONaE1E PIPE (RCP) CONFORMING TD
AASHTO M-170, AS CONTAINED IN NCDOT STANDARD SFEgFlCARa 1032-0 FOR WALL 'B' TYPE
WHERE SPEpFlFD, ALL STORM DRAIN PIPE SHALL BE HIGH DENSItt POLYETHEIENE (HOPE). SMOOTH
WALL INTERIOR, WTH WATER ndlT ,IOMT$ BACKFlLIID WTH A 57 WASHED STONE UP TO MN. 6' OVER
THE TOP OF THE PIPE HOPE PNE USED FOR STORK DRAINAGE DETENRON SYSTEMS SHALL BE
'HANCa BLUE SEW' OR APPROVED EWAL
ALL CaRUCATID METAL STORM DRAIN PIPE (aP) SHALL BE ALUMINI2ID TY7$ 2 CORRUGATED STEEL
MANUFAC1URm IN ACCORDANCE WITH 1HE REWIREMEN75 OF AASHTO M-36. niE PIPE SHAH BE
MANUFACTURED FRa AWMINIZID S1EEL TYPE 2 MATERIw CGJFORMINC TO 1HE REWIREMENTS OF
AASHTO M-274. AIL PIPE SHALL BE FURNISHED W1H REROLLED ENDS AND SHALL BE JgNm WITH
HUGGER BwDS THE USE aF DBIPLE BANGS WILL NOT BE ALLOWID. PIPE THROUGH 24' dAMETtTt
SHALL BE 18 GAUGE, PIPE TFIROUCH 4Y DIAMETER SHALL BE 14 CADGE, PIPE THRWCH 54' DIwE1ER
SHALL BE 12 GAUGE
10. CIXJTRACTOR SHAIJ- VERIFY ALL FIEVADONS BffO~ INSTALLARON OF FApUDES
aoa~401 PERMIT JURISDICTION
PROJECT AREA: 1.11 ACRES
DISTRUBED AREA: 0.40 ACRES
REFER TO SHEET C-101
NON JURISDICTION
UPSTREAM PROJECT AREA: 0.88 ACRES
UPSTREAM DISTURBED AREA: 0.32 ACRES
REFER TO SHEET C-102
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HEMLOCKS IN AREA AND ASSOCIATED ROOT DEGRADATION
f~
UPPER PORTION OF REACH B: SHOWING EXISTING
SEDIMENT DEPOSITION TO BE REMOVED AND VEGETATION.
PICTURE NOTES
1, PICTURES TAKEN BY A
REPRENSENTATIVE OF MCGILL
ASSOCIATES, P.A. ON FEBRUARY 3, 2007
2. PICTURES ARE FOR INFORMATIONAL
USE ONLY NOT INTENDED FOR
CONSTRUCTION USE.
3. DATE STAMP ON PICTURES IS
INCORRECT PLEASE REEFER TO NOTE #
1 FOR CORRECT DATE.
PRELIMINARY
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LOWER END OF REACH A: SHOWING
EXISTING SEDIMENT DEPOSITION.
AREA ABOVE LAUREL TERRACE WHERE THE PROPOSED
WATER QUANTITY POND IS TO BE LOCATED.
UPPER END OF REACH A BELOW LAUREL TERRACE RD:
SHOWING 18"CULVERT AND RIP RAP TO BE REMOVED AND
REPLACED WITH ROCK STEP POOL.
AREA ABOVE LAUREL TERRACE WHERE THE
PROPOSED WATER QUANTITYIQUALITY STEP
POOL SYSTEM IS TO BE LOCATED.
RIVER WALK DRIVE: SHOWING 2-36"CULVERTS
DESIGNED TO PASS 25 YEAR-24 HOUR STORM EVENT.
AREA BELOW RIVER WALK DRIVE: SHOWING
PROPERTY LINE FENCE AND EXISTING ROCK
CHECK DAM TO BE REMOVED ONCE ALL
CONSTRUCTION IS COMPLETE.
LOWER END OF REACH B: SHOWING EXISTIG 90 DEGREE
BEND TO REMOVED AND RIP RAP CHANNEL TO BE
REPLACED WITH ROCK STEP CHANNEL.

LOT 29
LAUREL TERRACE
MARLENE & MICHAEL BUCKALEW
DB: Z-19 PG: 2298
PIN: 7540.10-35-8297
0.30 ACRES

1 / , ~~ i- HATCHED AREA TO BE
^, ~ \ INSTALLED WITH A
I T i ~ ~ ~ ~~ ~ ~ ~ I ~'~ ~- ~ ~ ROCK STEP CHANNEL,
I ~ ~,~ ~,
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LOT 29
LAUREL TERRACE
MARLENE & MICHAEL BUCKALEW
DB: Z-19 PG: 2298 ,-
PIN; 7540.10-35-6297
0.30 ACRES
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~~
NR!-VDVEN GEOTE)(TD.E
FABRIC PLACED HETVEFN
BNLDERS PND TRIED DN
m, LPSTREAM SIDE VRH i57
1
(~CASCADWG WATERFALLiN7s,
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Buns fFACDiG LPVARW~
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LNE CUTTING LENGTH
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ANGLE CUf
- 3G-43 DEGREES
NDTFi
STAKING NAY BE REGLGRED THRGEiH
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REDUIRE STARTER HO.E DF TIE CARE
LNE STAKES
~~~- -III:
NDRIML
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xorEs
L UVE STAII~SS SHALL 8E EVENLY SPACER 4 FEET APART.
B. ~wST~0.SIWLL HE DRIVEN UNRL APPAD%INATELY ~ Cf LNE STAIE 6
3, ff STARTER HRE IS NEEDED, MnEIMRE AOE POCKET AS MUCH AS POSSIBLE
4, UTD.IIE nN SITE TRANSPLANT MATERLILS MADE AVARAHLE HY THE OVIER, ONCE
20.RCE ff TRANSPLANT MATERIAL HAS BEEN HARVESTED, UTILIZE LNE STAKING
OLIVE STAKING-BANK STABALIZATION~NTS,
FLO~ EKCAVA7E UPSTREAM DF
1 m1LDERS m acREASE nFrTH
ff STEP PDDL THEN HACK FDl
VITH iS7 sTUE axnmt COBBLE
FAEM EIXSTING STREAK >ED m
A MnIDH.M DEPTH ff 1 FT.
19Pa-VDVEN GEDTE%TILE
FABRIC m BE USED m FACE
BOB.DERS AND BAG(FdLEn
OVERTCi Y[TH ABOVE SmNE
BaLDERS m BE nE0 INm
BANK AT LEAST 1-LS FEET
PCB! \
`~-POOL EKCAVATED PER
DRECTIDN DF EN[DEER AND
FILLED PRRnALI.Y V]TH 137
STONE CR CnBHLE FROM
EXISTWG STREAMBED
Bd1LDERS m SLOPE
DDYMVaRn 1-BX m
MIDDLE ff STEP POOL COOT FIBER
NATTINIi
[NSTALLID PER
STANDARD SPEC.
f Nt1tMAL DEPTH ~I.a~
r
~ '`i_
8 STEP POOL ~ ;
1 ~ 3
Open plant;ng Place bare-root Close hole with
hole with seedling in hole - Shovel or Auger-
Shovel or Auger root collar at no air space
surface around roots
BARE-ROOT SEEDLING PLf~IVTIf~fG DETAI(_ ~;~~ T s ~
SHRUBS
SPECIES COMMON NAME TOTAL H SIZE
CAR~OLRIINANA H~ORNBE~AIA 1BD BARE R00T/DOTTED
HAMAMELIS AMERICAN TBD BARE ROOT/POTTED
VIRGINIANA WITCFBHAZEL
SERRULATA ~iVI.DER~ TBD BARE ROOT/POTTED
FOINT/NESI'A~IIA DHOI~OBBIE TBD BARE R007/POTTED
SAIIJ( NIGRA BLACK YELLOW 1BD BARE R00T/POTTED
CORNUS AMOMIHI SN.KY DOGWOOD TBD BARE ROOT/POTTED
SAUX SERICEA SILKY YALLOW TBD BARE R00T/POTTfD
KAIAIIA LATifdJA Mql AIN TBD BARE ROOT TTEO
UUREL ~

NOTES
1, TREE & SHRUB SPECIES TO BE RANDOMLY INTERMIXED ON 6'X6' SPACING
UTILIZING AT LEAST 5 ~F THE 9 TREE SPECIES LISTED AND 3 ~F THE 7
SHRUB SPECIES LISTED, MATERIAL SOURCE AND DESIRED SUBSTITUTIONS
TO BE APPROVED BY DESIGNER,
2, TOTAL NUMBER OF TREES IS TBD,
3, TOTAL NUMBER ~F SHRUBS IS TBD,
4, TREE AND SHRUB PLANTING TD BE ON MID-BANK AND UPPER BANK ZONE,
S, IF AVAILABLE ~N-SITE, PLANTS MAY BE HARVESTED AND PLANTED WHERE NEEDED,
TREES
SPECIES COMMON NAME iGTAL B SIZE
WERWS ALGA WHITE OAN TBD BARE ROOT
PLATANUS
OCCIDENTAUS ~, SYCAMORE ~ BARE R00T
~NEA SCARLET OAK TBD BARE ROOT
~IULA LENTA SKEET BIRCH TBp BARE ROOT
LHtIQDENDRON
NLIPIFERA YF110W POPLAR TBD BARE ROOT
CANA~DE~NSIS ~ HEMLOCK TBD 8ME ROOT
ALLECHANIENSIS YELLOW BIRCH TBD BARE ROOT
ACER RUBRUM RED MAPLE TBD BARE ROOT
BETULA NIGRA RIVER BIRCH TBD BARE ROOT
~
BOULDSERS ARE TD
-
~
NON-VOVEN
HE HACKFILLED SO ~
~'
~ GEOTEKTILE OR
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~
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T
A
~ BOULDERS ARE
BACK AT A fi~l
,~
~
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,
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SURROUNDING GRADE,
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TO BE PLACED ON
-
.ti -;~ - - - ~- - --- ~ TOP OF LARGER
~~ BOULDERS m

~_
LARGE FLAT BOULDERS CREATE A
TO BE PLACED ON A DSY.
f S]DEVALL FOR
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\ CHANNNEL
THAT THEY OVERLAP THE
PREV]OUS (STEPPING
UPYARO),
TO BE CONSTRUCTED
FROK DOVMSTREAM TL1
UPSTREAM,
~ yl~~
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NnTE~
COD! FRIER MATnNG SHALL ~ PLACED ALR+G
TIE OUTSDE ff ALL XEANDER HENDSANO ALONG
HDiH SIDES ff THE CHANNEL III TANGENT ARES
CD1R FIRER W1TnDlG- UNLESS OTIf.RV1SE NOTED HE ENGnEER, f0t
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FACE VIEW
slDxE dEa DAY:
SIONE SHOUID BE PLAfSL O1fS TIE CHANIEI BAN16 TD PoID WA7FR
FAO11 CU7TNC AAOUxO THE DAM L .71E OSTANLE SUOf THAT PDNIS
A AND B NE a EWAl FIEVATpI
THE FOLLOWIND OT7EPoA SHWIO BE USED MfN DE90UNC A OELX DAM
- FNSIIRF TMT TIE DRNNACE AEEA ABOVE TE OEOI DAY DOET NOT
E1@EED 2 ACRLS
- NEFP TIE NAXWUN XDOHT AT E R AT 1MF CQl1FR 6 THE DAY.
- NE1:P ixE @!TT OF iNE CxELT( DAN AT LEAST F WOES LQAFA TIAN
TE OU1FR EDCrS AT NA7M7AL Mm11ND F1MAlION.
- ~ ixE SDE SLOPES DF TE DAN AT 21 OR FUTiFA
- STABEIII OY7iFl0'F AREAS ALONG TE OiANE1 10 AL95T EAOSIOI
CAUSED BY OIECK DAMS
RIFKAF ~HtI,K GAM
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PLAN VIEW
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CWYINO q? FawDFp
TEMPORARY DIVERSION DITCH
MINIMUM DIMENSIONS FOR LEVEL SPREADER
DESIGN FLOW
CFS 'ENIRANCEI
'MDTH DEPTH
h '
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20'
20 - 30 i 24' 0.T 3' 30'
MATERIU SGPIID B!
LEVEL LIP OF
LEVEL SPREADER
ND1ES:
1. THE MATMG SHOULD BE A MINIMUM OF 4 FT. WDE EXTENDWC 8 INCHES
OVER THE UP AND BURIED 8 INCHES DEEP IN A VERTICAL TRENCH ON THE
LOWER EDGE THE UPPER EDGE SHOULD BUTT AGAINST SMOOTHLY CUT
SOD AND BE SECURELY HELD IN PLACE WITH CLOSELY SPACED HEAVY
DUTY W1RE STAPLES AT IEAS'T 12 INCHES LONG
2 ENSURE 1HAT THE SPREADER UP IS LEVEL FOR UNB'OHA SPREADING OF
STXBA RUNOFF.
3. CONSTRUCT THE LE7IEL SPREADER ON UNDISTURBED SdL
4. CONSiRI1CT A 20-Fi. tRANSIRON SECR~1 FROM THE DIVQ29~1
CHANNEL TO BLQJD SM001HLY Tb THE WIDTH AND DEPTH OF THE
5. DIBPERSE RUNOFF FROM THE SPREADER ACROSS A PROPERLY
STABILIgD SLOPE NOT TO EXCEED 1WL MAKE SURE THE SLOPE 6
SUFFldENTLY SMOOTH iD KEEP FLOW FROM CONCENiRARNG
8. IMNmIATFLY AF1ER ITS CONSTRUCRON, APPROPPoATELY SEID AND
MULdi THE FNRRE DISNRBED AREA ff THE SPREADER.
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APPENDIX C
SECTION 404 /SECTION 401
PERMIT APPLICATION

1

U

Office Use Only: Form Version March OS
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
~i~YM~NT
1. Check all of the approval(s) requested for this project: R~CE~VE~
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:
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 ~',~ $s-+~
~ ~=5 G ~ 2001
Owner/Applicant Information
Name: Riverwalk in Highlands, LLC `~~ ~~ UG1m~r~.~ C~w'~z~ ~'~'
vii ~,;; ir~a.~:'¢PP ~R'rgF"r't!Tr'?~~~w~
Mailing Address: 3 Ravina Dr, Ste 1550
Atlanta, GA 30346
Telephone Number: 404-357-2374 Fax Number: 404-393-9526
E-mail Address: atlantanational(a~bellsouth.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: J.P. Johns, PE
Company Affiliation: McGill Associates. P.A.
Mailing Address: 420 E Park Ave.. Suite 305
Greenville, SC 29601
Telephone Number: 864-234-6944 Fax Number: 864-235-6766
E-mail Address: jpiohns(a~mc ilg len~ineers.com
Page 5 of 13

III. Project Information
8.
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
USAGE 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: RIVERWALK SUBDIVISION (Central Corridor)
2. T.LP. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 7540.10-45-6767
4. Location
County: Macon Nearest Town: Highlands
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): From the Town of
Highlands Central Business District, take Hwy 64 North out of town. The entrance to
Riverwalk Subdivision is proximately 3 miles on the left of Hwy. 64.
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): 744108.87 °N 505432.41 °W
6. Property size (acres):
7. Name of nearest receiving body of water: Unnamed Tributary of Cullasaja River
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.en~r.state.nc.us/admin/maps/.)
River Basin: Little Tennessee
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Site is under active construction, which includes road
grading and installation of utilities (water, sewer, stormwater, etc.). Land use in e
vicinityproject area is residential with 1-2 Acre Lots (Wooded).
Page 6 of 13

10. Describe the overall project in detail, including the type of equipment to be used: To ag_in
access to the subdivision two roads were constructed: Riverwalk Drive and Laurel Terrace.
Cullasaja Drive is existing and was relocated/expanded and renamed to Riverwalk Dr. which
crossed one of the unnamed tributaries of the Cullasaja River. Laurel Terrace was
constructed to gain access to an upper area of the property and crossed another unnamed
tributary of the Cullasaja River. Both stream crossings were filled in and piped. The types
of equipment to be used are mass moving bulldozers and tracked backhoes.
11. Explain the purpose of the proposed work: The roads were installed to gain access to the
proposed subdivision.
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.LP. project, along with
construction schedules. N/A
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.
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.
Page 7 of 13

1. Provide a written description of the proposed impacts: Two unnamed tributaries of the
Cullasaja River are to be filled in and piped to pass the 25 year - 24 hour storm event for
Highlands NC of 9.47 inches of rainfall.
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
( es/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: 0.0
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 lm act Impact
Length
linear feet) Area of
Impact
(acres
1 Unnamed Fill/Culvert Intermittent 6 30 0.004
2 Unnamed Fill/Culvert [ntermittent 6 20 0.001

Total Stream Impact (by length and acreage) 50 0.005
Page 8 of 13

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_ excavatinn_ dredgin~_ fl~~din~_ draina~e_ 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 the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres): 0.005
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.005
Total Stream Impact (linear feet): 50
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 USAGE.
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:
Page 9 of 13

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. N/A
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,
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
htt~//h2o.enr.state.nc.ushlcwetlands/strm~ide.html.
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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.
Approximately 200 feet of intermittent stream is to be restored/stabilized above Cullasaja
Drive. Restoration will include removal of sediments already deposited in stream bed,
reestablishment of channel and banks, addition of 5 step-pool/riffle sequences to help control
grade and alleviate future erosion potential. The establishment of a riparian buffer zone will
also be incorporated along with the plating of native vegetation in that said zone.
The existing Cullasaja Drive will be removed along with its associated culvert as well as
a drive way that parallels above unnamed tributary.
Approximately 200 feet of intermittent stream will also be restored/stabilized above the
lower portion of Laurel Terrace. Restoration will include removal of sediments already
deposited in stream bed, reestablishment of channel and banks, addition of 5 step-pool/riffle
sequences to help control grade and alleviate future erosion potential. The establishment of a
riparian buffer zone will also be incorporated along with the plating of native vegetation in
that said zone.
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
[phone] 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/wip/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 of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
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 [phone] to review current thresholds for environmental documentation.
Yes ^ No ^
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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
(Neuse), 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 Multiplier Required
(square feed Mitieation
1 3 (2 for Catawba)
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from the top of the near 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 1 SA NCAC 2B .0242 or .0244, or .0260.
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 Impervious area on-site is less than 0.5 acres, but all runoff to and from site will be
controlled with sediment control structures located above and below project area.
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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.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ~ No ^
Is this an after-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://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: There
is no further proposed development for this portion of the site.
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).
c-b°' off, Za?
A~plicant/A~ent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 13 of 13