20071557 Ver 1_Restoration Plan_20071017

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Rock Bridge
Stream & Wetland Restoration Plan
Haywood County, North Carolina
October 15, 2007
Prepared for:
Blue Sky Communities, Inc.
Rock Bridge Development
Prepared by:
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PO Box 882
Canton, NC 28716

The project site, known as Rock Bridge is located off Hemphill Road in
' Haywood County, NC. Latitude and longitude for the site are 35.5635723 N and
83.0446220 W, respectively. The site is located within the Dellwood USGS Topo
Quad (See Attachment A). To access the site from Asheville, take I-40 west to
' exit 20. Head south on Jonathan Creek Road N 3 miles. Turn right onto State
Route 1321. Take the next left onto Grindstone Rd. Follow Grindstone 1 mile
turning right onto Hemphill Rd. The site is 2000' further on the right.
Blue Sky Communities, Inc. is proposing to restore 100 linear feet of stream
that had previously been impacted during construction of a bridge and .03 acres
' of wetland impact. The restoration is in response to a Notice of Violation issued
by the Division of Water Quality. The restoration will include installing one cross
vane, adding proper dimension and profile to the channel, reestablishment of
' native streambank vegetation, and restoration of the existing wetland back to its
original functioning form.
Existing Site Conditions
Hemphill Creek originates on the Cataloochee Divide near the Great Smoky
Mountain National Park Boundary. It is a third order tributary to Jonathan Creek
which flows into the Pigeon River and then into the French Broad. From the Rock
Bridge site, Hemphill Creek drains a 6.1 sq. mile watershed (see Attachment A).
At this point Hemphill Creek enters a broad Type VII valley with an existing
floodplain and alluvial deposititon. Hemphill Creek at the Rock Bridge site
becomes a Cob Rosgen stream type with an entrenchment ratio of 10.53, width to
depth ratio of 14, and sinuosity is 1.0 (see Attachment B). Hemphill Creek has
been altered over the years due to agricultural practices. The creek throughout
this valley has been relocated and straightened to accommodate agriculture. This
straightening has increased gradient to 3.5%; therefore increasing sheer stress on
banks. Hemphill Creek consists of larger gravel and cobble throughout this reach.
During construction of a bridge over Hemphill Creek, some channel
substrate was removed from a 100' reach (see Figures 1-4). The dimension of the
stream was also altered to support the bridge. Existing soil and plant material
were removed from a .03 acre section of a wetland on site (see Figures 5-7).
Both impacts lead to a Notice of Violation from the Division of Water Quality. The
following restoration plan will address this violation.
Precipitation
According to the PRISM maps (see Attachment C) maintained by the Natural
Resources Conservation Service, this area of Haywood County receives
approximately 54-66 inches of rain annually. Excess water that falls as
precipitation must leave the site as ground water flow, surface sheet flows,
channelized surface flow, or deep water seepage.

Soils
' The project site is located within the mountain physiographic region of North
Carolina. Soils series present on site include Statler loam and Cullowhee-Nikwasi
complex. Statler loam soils are present on moderately steep well drained soils
having a slope of 1 to 5 percent. Parent material consists of loamy alluvium.
Cullowhee Nikwasi soils are found on floodplains that are frequently flooded. Soils
are poorly drained and usually on slopes of 0 to 2 percent. Parent material
' consitsts of loamy alluvium over sandy and gravelly alluvium (see Attachment D).
' Reference Reach
The reference reach for this site was 300' downstream of the violation on Hemphill
' Creek. This stable reach of similar size was used to emulate proper dimension
and profile for the restoration and enhancement of the 100' section of Hemphill
Creek that had previously been disturbed (Attachment E).
i
Restoration Plan
' Blue S Communities Inc. lans to restore the 100' section of Hem hill Creek
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back to its original dimension and restore the impacted wetland. The goals of the
' project are:
' 1. Restore natural dimension and profile.
2. Stabilize banks and reduce erosion.
3. Create and preserve a riparian buffer with permanent native vegetation.
' 4. Create aquatic habitat and complexity.
5. Restore the impacted wetland back to original state.
Construction Plan and Specifications
' Construction activities will include construction of a cross vane just downstream of
the bridge to hold grade and redirect flow away from the banks. Proper
dimension and profile will be administered to this 100' section of stream based on
reference reach conditions. Banks will be resloped and matted with geotextile
fabric (see typical). The streambanks will then be heavily planted to ensure
' stability. Substrate will be added to mimic conditions downstream. The existing
0.03 acres of impacted wetland will be filled and reseeded with a wetland seed
mix. Approximately 150 cubic yards of fill will be used to fill the existing ditch.
i Across vane will be used to provide grade control, keep the thalweg in the center
of the channel, provide access to the floodplain, and protect the banks. The cross

vane will be constructed as if it is two single vanes with a center structure
perpendicular to the channel flow. The center stone will set the invert grade of
the stream bed.
The vane will be oriented upstream with angles off the bank from 20 to 30
' degrees. It will be located N30 feet downstream of the bridge. The vane will
start at bankfull and slope downward into the channel, pointing upstream. Large,
' flat rocks will be used to construct the vane. Slopes on the vanes will range from
2 to 7 percent. Boulders in the vanes will fit tightly together and footer rocks will
be utilized to ensure scour does not topple the structures (See Typical with Plans).
Planting Plan and Specifications
A 30 foot protective buffer on either side of the channel will be included to
enhance the project. Vegetation is a key component to the restoration project.
The slopes will be planted with appropriate riparian species from an approved list,
to recreate the natural buffers that occur on site. Salvaging of onsite plant
materials will be utilized to meet the planting objectives. Trees will be planted at
an 8 X 8 foot spacing. Plant survival and growth of at least 320 stems/acre
through year 3 and 260 stems/acre in year 5 will be considered successful.
The objective will be to mimic most of the natural buffer that is on site, which is
mainly composed of shrubs and trees. However, warm season grasses will be
used, in accordance with the'~Warm Season Grass Establishment and
Management in North Carolina and Virginia" provided by the US Fish and Wildlife
Service as a temporary planting to aid with soil stabilization.
Plant Material Specifications
Bare Root or Container (Woody and Herbaceous Material):
The plants will either be transplanted on site, ordered as bare root , or purchased
in 1-3 quart containers. Upon delivery, the specimens shall appear healthy with
no leaf spots, leaf damage, leaf discoloration, chlorosis, leaf wilting or curling, or
evidence of insects on leaves or stems. Plants will be planted immediately. If
plants cannot be planted immediately, plants will be stored in shade and kept
moist in peat moss, mulch, or other suitable material.
Container (Woody Material):
The soil within the root ball shall be field capacity (1/3 atmosphere) or wetter
upon delivery to the job site. Any wilted, dry and/or lightweight plants shall be
rejected. Plants shall be planted immediately upon delivery. If not, then they

must be stored in shade and root balls kept moist through periodic watering until
time of planting.
'
If actively growing, plants shall appear healthy with no leaf spots, leaf damage,
leaf discoloration, chlorosis, leaf wilting or curling, or evidence of insects on
' leaves.
For trees, where spiraling woody roots exist on the outside of the soil/root mass
upon the removal of plants from the containers, the landscape contractor shall
separate (cutting where necessary) and spread them out prior to planting.
Soil Amendments:
Soil amendments are required around tree plantings. The amendments used
should be leaf or pine bark compost at rates of one part compost to one part soil
(from planting hole). A slow release fertilizer or "super phosphate" type fertilizer
should be mixed in with soil amendment mix. No surface mulch is required where
plants are planted at or near original grade, unless tree shelters are used to
promote growth and survival percentage. A 6-inch soil berm will be constructed
12 inches from the outer edge of the root ball to hold water.
I Monitorin Plan
9
' Within 90 days of construction completion, WNR staff will provide the resource
agencies with photos of each site and a baseline monitoring report. A monitoring
report with photos will be submitted annually for 5 years. WNR will conduct
' monitoring and Blue Sky Communities, Inc will provide the financial assurance that
will ensure this project is complete and successful.
' An as-built report will be included with the first annual monitoring report. At least
two bankfull events in separate years will be documented within 5 years.
' Otherwise, stream monitoring will continue until two bankfull events have
occurred in two separate years. Success will be measured in terms of plant
survivability and channel stability.
' Channel Stability
' Channel stability will be measured through cross-sections, longitudinal profiles,
and pebble counts; and then compared to previous measurements. A minimum of
four permanent cross-sections will be taken per 1,000 linear feet of stream
' representing 50% pools and 50% riffles. Pebble counts will be performed at each
cross section. A longitudinal profile will be conducted to monitor any changes in
profile. If the reach is less than 3,000 linear feet, then all 3,000 feet will be
' surveyed. If the reach is greater than 3,000 linear feet, then the profile will
include 30% of the restored stream or 3,000 linear feet (whichever is greater). If

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there is substantial evidence of instability, such as down-cutting or erosion,
remedial actions will be planned, approved, and implemented.
Plant Survival
Vegetative success will be measured in terms of plant survival. Plant survival will
be measured with stem counts in designated vegetative monitoring plots. Stem
counts of at least 320 stems/acre in year 3 and 260 stems/acre in year 5 will be
considered successful. Vegetative monitoring plots, 1/10 acre in size, will be set
up adjacent to each cross section. Plant survivability will be assessed using these
vegetative monitoring plots. If there is substantial plant mortality that leads to
lowered stem counts, remedial actions will be taken.
Areas with less than 75% vegetation coverage will be re-seeded and/or fertilized;
and live stakes and bare rooted trees will be planted to achieve the desired
densities. Exotic, invasive, and invader species will be removed so that they will
not exceed 20% of the vegetative composition.
Photographic Reference Sites
Photos will be taken at each cross section as well as monumented reference sites
throughout the restoration reach. These photos will indicate aggradation,
degradation, and/or bank erosion. If none exists, no remedial action will be
required. If aggradation, degradation, and/or bank erosion occurs, the problem
will be accessed and remedial actions will be planned, approved, and
implemented.
Recommended Native Species for Stream Restoration
Trees
Yellow Buckeye
Sweet Birch
River Birch
Bitternut Hickory
Shagbark Hickory
Persimmon
Green Ash
Carolina Silverbell
Blackgum
Sycamore
Black Cherry
Aescu/us octandra
Betula lenta
Bete/a nigra
Carya cordiformis
Carya ovata
Diospyros virginiana
Fraxinus pennsy/vanica
Ha/esia caroliniana
Nyssa sy/vatica
Platanus occidentalis
Prunes serotina

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Black Willow Sa/ix nigra
White Basswood Tilia heterphylla
' Small Trees and Shrubs
r Tag Alder A/pus serru/ata
Serviceberry Ame/anchier arbrea
Red Chokeberry Aronia arbutifolia
' Common Pawpaw Asimina triboba
Sweet-shrub Ca/ycanthus floridus
Ironwood Carpinus caroliniana
1 Alternate Leaf Dogwood Corpus a/ternifo/ia
Silky Dogwood Corpus amomum
Hazel-nut Cory/usAmericana
Witch Hazel Hamame/is virginiana
Winter Berry I/ex verticillata
Doghobble Leucothoe axillaries
Spicebush Lindera benzoin
Male-berry Lyonia /igustrina
Umbrella Tree Magnolia tripeta/a
Ninebark Physocarpus opu/ifo/ius
Wild Azalea Rhododendron peric/ymenoides
I Swamp Aza I ea Rhododendron viscosum
Swamp Rose Rosa pa/ustris
Silky Willow Sa/ix sericea
' Meadowsweet Spirea /atifolia
Sweet Leaf Symplocos tinctoria
Wihe-rod Viburnum cassinoides
' Yellow-root Xanthorhiza situp/icissima
Herbaceous
Jack-in-the-Pulpit Arisaema triphy//um
' Swamp M i I kweed Asc%pias incarnate
Fringed Sedge Carex crinata
Bladder Sedge Carex intumescens
Hop Sedge Carex /upulina
Lurid Sedge Carex lurida
Broom Sedge Carex scoparia
'
Tussock Sedge Carex stricta
Fox Sedge Carex vu/pinoides
' Turtlehead Che%ne g/abra
Umbrella Sedge Cyperus strigosus
Bottlebrush Grass E/ymus hystrix

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Joe-Pye Weed Eupatorium fistu/osum
Boneset Eupatorium pen`oliatum
Jewelweed Impatiens capensis
Soft Rush Juncus effuses
Rice Cutgrass Leersia oryzoides
Cardinal Flower Lobe/ia cardina/is
Great Blue Lobelia Lobe/ia siphi/itica
Seedbox Ludwigia alternifolia
Switchgrass Panicum virgatum
Tea rth u m b Po/ygonum sagittatum
Green Bulrush Scirpus atrovirens
Woolgrass Scirpus cyperinus
Soft Stem Bulrush Scirpus va/idus
Bur-reed Sparganium americanum
March Fern Theypteris palustris
River Oats Uniola /atifolia
Ironweed ~ernonia noveboracensis

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Figure 5. Violation site. Impacted wetland. Looking downstream toward Hemphill
Creek.
Figure 6. Violation site. Impacted wetland. Looking downstream.

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Attachment A
USGS Topo Map and Watershed Delineation

Copyright (C) 1997, Maptech, Inc

Attachment B
Hemphill Creek Existing Conditions

Hemphill Creek, riffle
2774
2772
2770
_~ 2768
~ 2766
-° 2764
iu
a', 2762
w 2760
2758
2756
2754

0 50 100
Bankfull Dimensions
60.8 x-section area (ft.sq.)
21.7 width (ft)
2.8 mean depth (ft)
3.6 max depth (ft)
23.0 wetted parimeter (ft)
2.6 hyd radi (ft)
7.7 width-depth ratio
Bankfull Flow
15.1 velocity (ft/s)
920.4 discharge rate (cfs)
1.64 Froude number
150 200 250
Width (ft)
Flood Dimensions
322.0 W flood prone area (ft)
14.8 entrenchment ratio
4.1 low bank height (ft)
1.1 low bank height ratio
Flow Resistance
0.031 Manning's roughness
0.08 D'Arcy-Weisbach fric
10.0 resistance factor u/u'
16.4 relative roughness
300 350
400 450
Materials
15 D50 Bed (mm)
52 D84 Bed (mm)
219 threshold grain size (mm):
Forces & Power
2.7 channel slope (%)
4.45 shear stress (Ib/sq.ft.)
1.51 shear velocity (ft/s)
72 unit strm power (Ib/ft/s)

Hemphill Creek, riffle
2772
2770
2768
_~ 2766
~ 2764
•°- 2762
i~
~ 2760
w 2758 --------------------------
2756
2754
2752
0 50 100
Bankfull Dimensions
60.3 x-section area (ft.sq.)
29.9 width (ft)
2.0 mean depth (ft)
2.9 max depth (ft)
30.9 wetted parimeter (ft)
1.9 hyd radi (ft)
14.8 width-depth ratio
Bankfull Flow
12.3 velocity (ft/s)
739.1 discharge rate (cfs)
1.55 Froude number
150 200 250 300
Width (ft)
Flood Dimensions
307.9 W flood prone area (ft)
10.3 entrenchment ratio
3.6 low bank height (ft)
1.2 low bank height ratio
Flow Resistance
0.031 Manning's roughness
0.09 D'Arcy-Weisbach fric.
9.3 resistance factor u/u"`
11.8 relative roughness
350
x----
400 450
Materials
15 D50 Bed (mm)
52 D84 Bed (mm)
161 threshold grain size (mm):
Forces & Power
2.7 channel slope (%)
3.28 shear stress (Ib/sq.ft.)
1.30 shear velocity (ft/s)
42 unit strm power (Ib/ft/s)

Hemphill Creek, pool
2775
2770
2765
0
.~
~ 2760
w
2755
2750

0 50 100
150 200 250 300
Width (ft)
Flood Dimensions
--- W flood prone area (ft)
--- entrenchment ratio
5.1 low bank height (ft)
1.2 low bank height ratio
Flow Resistance
0.031 Manning's roughness
0.09 D'Arcy-Weisbach fric.
9.6 resistance factor u/u'
12.8 relative roughness
350 400 450 500
Materials
15 D50 Bed (mm)
52 D84 Bed (mm)
169 threshold grain size (mm):
Forces & Power
2.7 channel slope (%)
3.43 shear stress (Ib/sq.ft.)
1.33 shear velocity (ft/s)
46 unit strm power (Ib/ft/s)
Bankfull Dimensions
61.2 x-section area (ft.sq.)
28.0 width (ft)
2.2 mean depth (ft)
4.1 max depth (ft)
30.0 wetted parimeter (ft)
2.0 hyd radi (ft)
12.8 width-depth ratio
Bankfull Flow
12.5 velocity (ft/s)
767.4 discharge rate (cfs)
1.55 Froude number

Hemphill Creek, riffle
2768
2766
2764
2762
0 2760
2758
w 2756
2754
2752
2750

0 50 100
150
Width (ft)
Bankfull Dimensions
60.2 x-section area (ft.sq.)
35.0 width (ft)
1.7 mean depth (ft)
2.8 max depth (ft)
35.6 wetted parimeter (ft)
1.7 hyd radi (ft)
20.4 width-depth ratio
Bankfull Flow
10.8 velocity (ft/s)
652.6 discharge rate (cfs)
1.47 Froude number
Flood Dimensions
200 250 300 350
Materials
278.4 W flood prone area (ft)
8.0 entrenchment ratio
4.2 low bank height (ft)
1.5 low bank height ratio
Flow Resistance
0.032 Manning's roughness
0.10 D'Arcy-Weisbach fric.
9.0 resistance factor u/u*
10.1 relative roughness
15 D50 Bed (mm)
52 D84 Bed (mm)
140 threshold grain size (mm):
Forces & Power
2.7 channel slope (%)
2.85 shear stress (Ib/sq.ft.)
1.21 shear velocity (ft/s)
31 unit strm power (Ib/ft/s)

Hemphill Creek, riffle
2760
2758
~ 2756
c
~~ 2754
a~
w 2752
2750
2748

0 50
Bankfull Dimensions
60.8 x-section area (ft.sq.)
29.9 width (ft)
2.0 mean depth (ft)
3.0 max depth (ft)
30.8 wetted parimeter (ft)
2.0 hyd radi (ft)
14.7 width-depth ratio
Bankfull Flow
9.6 velocity (ft/s)
581.4 discharge rate (cfs)
1.20 Froude number
100 150 200
Width (ft)
Flood Dimensions
317.3 W flood prone area (ft)
10.6 entrenchment ratio
3.7 low bank height (ft)
1.2 low bank height ratio
Flow Resistance
0.040 Manning's roughness
0.15 D'Arcy-Weisbach fric
9.3 resistance factor u/u~
11.9 relative roughness
250 300 350
Materials
15 D50 Bed (mm)
52 D84 Bed (mm)
163 threshold grain size (mm):
Forces & Power
2.7 channel slope (%)
3.32 shear stress (Ib/sq.ft.)
1.31 shear velocity (ft/s)
33 unit strm power (Ib/ft/s)

Hemphill Creek
-~-bed ~ x-section <> riffle crest o pool ^ run glide x a ~ b - c

2757
2756 ,,,,-,~ ~~
2755
2754
~ 2753
2752
~ 2751
w 2750
2749
2748
2747
0 50 100 150 200 250 300
Channel Distance (ft)
slope (%) slope ratio length (ft) length ratio pool-pool spacing (ft) - ratio
reach 2.7 --- 280.1 9.6 c anne wi s

---
---
---
riffle 3.1 (2.2 - 5.1) 1.1 (0.8 - 1.~ 39.5 (5.3 - 78.4) 1.4 (0.2 - 2.7) --- ---
pool 0.61 (0 - 3.3) 0.2 (0 - 1.2) 16.2 (11.4 - 21.3) 0.6 (0.4 - 0.7) 41.1 (36.9 - 45. 1.4 (1.3 - 1.6)
run 9.5 (2.3 - 15) 3.5 (0.9 - 5.E 14.8 (5.5 - 25.3) 0.5 (0.2 - 0.9) --- ---
glide 0 0 15.7 0.5 --- ---

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Bed Surface
Material '~
Size Range (mm;
Count
silUclay 0 - 0.062 4
very fine sand 0.062 - 0.125 3
fine sand 0.125 - 0.25 2
medium sand 0.25 - 0.5 2
coarse sand 0.5 - 1 4
very coarse sand 1 - 2 4
very fine gravel 2 - 4 4
fine gravel 4 - 6 2
fine gravel 6 - 8 3
medium gravel 8 - 11 7
medium gravel 11 - 16 11
coarse gravel 16 - 22 7
coarse gravel 22 - 32 9
very coarse gravel 32 - 45 8
ver coarse ravel 45 - 64 8
small cobble 64 - 90 3
medium cobble 90 - 128 2
large cobble 128 - 180 2
ve lar a cobble 180 - 256 1
small boulder 256 - 362 1
small boulder 362 - 512
medium boulder 512 - 1024
large boulder 1024 - 2048
ve lar a boulder 2048 - 4096
total particle count: 87
bedrock -------------
clay hardpan -------------
detritus/wood -
artificial -------------
total count: 87
Note: PEBBLE COUNT UNDER BRIDGE
Bed Surface Pebble Count, Hemphill Creek
' '-cu mulative % -# of particles
c
silUclay sand gravel cobble boulder
100% 12
90%
'- -------- -------- ----- --- 10
80% ~
c
I ~
Y 70% I g c
~ 60% ~ m
_
~ 50% ----- -- -------- ---- j 6 0
I ~
a 40% 1 ~_

30% ~
i
I 4 ~
`~°
20% ~
~
2
10% ~
I
0
0%
0.01 0.1 1 10 100 1000 10000
particle size (mm)
Size (mm) Size Distribution Type
D16 0.83 mean 6.6 silUclay 5%
D35 8.9 dispersion 10.8 sand 17%
D50 15 skewness -0.27 gravel 68%
D65 26 cobble 9%
D84 52 boulder 1
D95 120

Attachment C
NC Prism Maps

U.S. DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE
NORTH CAROLINA
ANNUAL PRECIPITATION
1

SCALE 1 :1,180,000
' II 46-48 °• LJ 82-86 .-
O 48-50 86-90
D 50-54 90-100
D 54-58 ~ 100-110
O 58-62 Ll 110-120
'~ 62-66

Average Annual Precipitation
1961-1990
inches per year
~ <40 ~ 66-70
D 40-42 ~ 70-74
D 42-44 ~ 74-78
D 44-46 ~ 78-82
83~ D 46-48 8~2~ ~ 82-86
D 48-50 ~~~=~~ 86-90
~ 50-54 90-100
D 54-58 ~~~~ a 100-110
~ 58-62 110-120
D 62-66
81
ao~

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Attachment D
Soil Maps

Soil Map-Haywood County Area, North Carolina
(Rock Bridge, Hemphill Creek)
N Meters
A 0 35 70 140 210
Feet
0 100 200 400 600
(IS()A Natural Resources Web Soil Survey 2.0 10/2/2007
Conservation Service National Cooperative Soil Survey Page 1 of 3

Soil Map-Haywood County Area, North Carolina
(Rock Bridge, Hemphill Creek)
MAP LEGEND
Area of Interest (AOI) ~ Very Stony Spot
Area of Interest (AOI) ,~ Wet Spot
Soils
~ Other
Soil Map Units
Special Line Features
Special Point Features - Gully
~_.~ Blowout
Short Steep Slope
.
® Borraw Pit
f . Other
X Clay Spot
Political Features
~ Closed Depression Municipalities
~(, Gravel Pit S Cities
„ Gravelly Spot ~ Urban Areas
~ Landfill Water Features
fy Lava Flaw ,_~._j Oceans
,~, Marsh ~^-~ Streams and Canals
~ Mine or Quarry Transportation
~ Rails
O Miscellaneous Water
Roads
© Perennial Water ~~. Interstate Highways
v Rock Outcrop US Routes
+ Saline Spot State Highways
Sandy Spot ,y Local Roads
Severely Eroded Spot Other Roads
~ Sinkhole
~7 Slide or Slip
~ Sodic Spot
w Spoil Area
Q Stony Spot
MAP INFORMATION
Original soil survey map sheets were prepared at publication scale.
Viewing scale and printing scale, however, may vary from the
original. Please rely on the bar scale on each map sheet for proper
map measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL: http://websoilsurvey.nres.usda.gov
Coordinate System: UTM Zone 17N
This product is generated from the USDA-NRCS certified data as of
the version date(s) listed below.
Soil Survey Area: Haywood County Area, North Carolina
Survey Area Data: Version 7, Mar 16, 2007
Date(s) aerial images were photographed: 4/5/1999
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey 2.0 10/2/2007
~ Conservation Service National Cooperative Soil Survey Page 2 of 3

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Soil Map-Haywood County Area, North Carolina
Map Unit Legend
Rock Bridge, Hemphill Creek
Haywood County Area, North Carolina (NC606)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CxA Cullowhee-Nikwasi complex, 0 5.6
to 2 percent slopes,
frequently flooded
EvE Evard-Cowee complex, 30 to 50 0.8
percent slopes
SdC Saunook loam, 8 to 15 percent 2.7
slopes, stony
SdD Saunook loam, 15 to 30 percent 1.5
slopes, stony
SuA Statler loam, 0 to 3 percent 7.8
slopes, rarely flooded
Totals for Area of Interest (AOI) 18.4
30.6%
4.2%
- -
14.8%
8.1
42.4%
100.0%
Natural Resources
Conservation Service
Web Soil Survey 2.0
National Cooperative Soil Survey
10/2/2007
Page 3 of 3

Attachment E
Reference Reach Data

0 + 65 Hemphill Creek Reference Reach, Pool
99
..r_.,~_.a..__ _._.-.~ ._. _..~ ~~ ._ ~__-_ _ - -
98
97
96 _
~ ..
.ro
°- 95
a~i 94
w
93
92
91
90
0 5 10 15 20 25 30
Width
Bankfull Dimensions Flood Dimensions
60.9 x-section area (ft.sq.)
28.1 width (ft)
2.2 mean depth (ft)
4.1 max depth (ft)
30.5 wetted parimeter (ft)
2.0 hyd radi (ft)
12.9 width-depth ratio
Bankfull Flow
10.6 velocity (ft/s)
646.9 discharge rate (cfs)
1.33 Froude number
--- entrenchment ratio
4.5 low bank height (it)
1.1 low bank height ratio
Flow Resistance
0.035 Manning's roughness
0.11 D'Arcy-Weisbach fric.
8.4 resistance factor u/u'
7.9 relative roughness
35 40
Materials
13 D50 Bed (mm)
84 D84 Bed (mm)
153 threshold grain size (mm):
Forces & Power
2.5 channel slope (%)
3.11 shear stress (Ib/sq.ft.)
1.27 shear velocity (ft/s)
36 unit strm power (Ib/ft/s)

0 + 79 Hemphill Creek Reference Reach, Riffle
100
99 - .____ __ __ _ - _
98
~ 97
~~ 96
m 95
w 94
93
92
91
0 5 10 15 20 25 30 35 40 45
Width
Bankfull Dimensions
59.1 x-section area (ft.sq.)
32.4 width (ft)
1.8 mean depth (ft)
3.8 max depth (ft)
34.5 wetted parimeter (ft)
1.7 hyd radi (ft)
17.8 width-depth ratio
Bankfull Flow
Flood Dimensions
248.5 W flood prone area (ft)
7.7 entrenchment ratio
4.0 low bank height (ft)
1.1 low bank height ratio
Flow Resistance
0.036 Manning's roughness
0.12 D'Arcy-Weisbach fric.
8.1 resistance factor u/u'
6.6 relative roughness
Materials
13 D50 Bed (mm)
84 D84 Bed (mm)
131 threshold grain size (mm):
Forces & Power
2.5 channel slope (%)
2.67 shear stress (Ib/sq.ft.)
1.17 shear velocity (ft/s)
27 unit strm power (Ib/ft/s)
9.5 velocity (ft/s)
558.8 discharge rate (cfs)
1.27 Froude number

1 + 20 Hemphill Creek Reference Reach, Riffle
97
96
95
c
.° 94 ------ --
c~
°~ 93
w
92
91
90
0 5 10
Bankfull Dimensions
52.9 x-section area (ft.sq.)
27.9 width (ft)
1.9 mean depth (ft)
2.8 max depth (ft)
31.2 wetted parimeter (ft)
1.7 hyd radi (ft)
14.7 width-depth ratio
Bankfull Flow
9.1 velocity (ft/s)
482.9 discharge rate (cfs)
1.23 Froude number
15 20 25
Width
Flood Dimensions
236.8 W flood prone area (ft)
8.5 entrenchment ratio
3.0 low bank height (ft)
1.1 low bank height ratio
Flow Resistance
0.037 Manning's roughness
0.13 D'Arcy-Weisbach fric.
7.8 resistance factor u/u'
6.9 relative roughness
30 35 40
Materials
13 D50 Bed (mm)
84 D84 Bed (mm)
130 threshold grain size (mm):
Forces & Power
2.5 channel slope (%)
2.65 shear stress (Ib/sq.ft.)
1.17 shear velocity (ft/s)
27 unit strm power (Ib/ft/s)

Hemphill Creek Reference Reach
101
100
ss
~ 98
c
97
w 96
95
94
93
---bed water srf -~- bankfull ~ x-section <> riffle crest o pool ^ run glide x --- + --- - ---
R _ ~_
,.
_- ~I- 1' ~
~-~; _ .._
~'
0 50 100 150 200 250 300
Channel Distance (ft)
slope (%) slope ratio length (ft) length ratio pool-pool spacing (ft) p-p ratio
reach 2.5 --- 252.0 (8.4 channel widths) --- --- ---
ritfle 2.5 (1.1 - 4.5) 1 (0.4 - 1.8) 17.0 (6.2 - 36) 0.6 (0.2 - 1.2) --- ---
pool 0.9 (0 - 3.7) 0.4 (0 - 1.5) 5.5 (2.5 - 10) 0.2 (0.1 - 0.3) 26.3 (7.6 - 52) 0.9 (0.3 - 1.7)
run 7.4 (1 - 14) 3 (0.4 - 5.6) 6.1 (2.6 - 11.2) 0.2 (0.1 - 0.4) --- ---
glide 0.32 (0 - 3.5) 0.1 (0 - 1.4) 2.5 (1 - 4) 0.1 (0 - 0.1) --- ---

Hemphill Creek Reference Reach French Broad River Basin ---
East West Distance
0 20 40 60 80 100 120
Ratios
m
U
C
RS
N
L
Dimensions (ft)
Bankfull Width: 30.2
-10
-60
-110 a
0
z
-160
-210
Sinuosity: 1.1

Bed Surface '~
Material Size Range (mm;
Count
silUclay 0 - 0.062 3
very fine sand 0.062 - 0.125 3
fine sand 0.125 - 0.25 3
medium sand 0.25 - 0.5 3
coarse sand 0.5 - 1 3
very coarse sand 1 - 2 5
very fine gravel 2 - 4 6
fine gravel 4 - 6 3
fine gravel 6 - 8 6
medium gravel 8 - 11 10
medium gravel 11 - 16 15
coarse gravel 16 - 22 8
coarse gravel 22 - 32 9
very coarse gravel 32 - 45 6
ver coarse ravel 45 - 64 2
small cobble 64 - 90 4
medium cobble 90 - 128 4
large cobble 128 - 180 6
ver lar a cobble 180 - 256 3
small boulder 256 - 362 2
small boulder 362 - 512 1
medium boulder 512 - 1024
large boulder 1024 - 2048
ve lar a boulder 2048 - 4096
total particle count: 105
bedrock -------------
clay hardpan -
detritus/wood -------------
artificial -------------
total count:
Note: 105
Bed Surface Pebble Count,

i
silUclay Hemphill Creek Reference Reach

sand gravel
-~-cumulative %

cobble boulder
-# of particles j

16
100%
90% 14
80%
~
I
~ 12
~ 70%
~ ~
c

c
60% ~
~ 10 ~
~

~
50%
-----
---
--------
---- ~
i
8 o_
;' ~ ~ ~
w
Q 40% I I g ~
~ ~ o
30% t ~ ~
~ 4
20% ~
~ 2
10% ~
I
0
0%
0.01 0.1 1 10 100 1000 10000
particle size (mm)
Size (mm) Size Distribution Type
D16 1.3 mean 10.4 silUclay 3%
D35 8.5 dispersion 8.2 sand 16%
D50 13 skewness -0.07 gravel 62%
D65 22 cobble 16%
D84 84 boulder 3%
D95 200

~ . ~ ~ ~ ~ ~ ~ ~ ~ r ~ ~ r ^~ ~ ~ ~ ~
Rock Bridge: Design Summary; Hemphill Creek Enhancement
Existing Conditions

VARIABLES Steam Name
Unit
Hemphill Creek
County Haywood
Notes:
Responsible Crew WNR
Stream Type Cob
Drainage Area sq. mile 6.1
Bankfull Width (Wblcf) ft 29.10
min/max 21.7/35.0
Bankfull Mean Depth (Dbkf) ft 2.08
min/max 1.712.8
Width/Depth Ratio (Wbkf/Dbkf) ~ .; _~~
min/max 7.7/20.4
Bankfull Cross~ectional Area (Abkf) sq. ft 60.53
min/max 60.2/60.8
Wetted Perimeter (wet Perim) ft 33.26
est 2*Dbkf + Wbkf
Width Floodprone Area (Wfpa) ft 306.40
minlmax 278.4/322
Entrenchment Ratio ~;) "
min/max 9.6/11.1
Sinuosity (K) ~ 04

,,
r:,.
,~ ~~a~ .
"'
r.
_ -
Bankfull Mean Velocity (Ubkf) ft/sec 12.00
Bankfull Discharge (Qbkf) cfs 726.34
Hydraulic Radius (Abkf /wet Perim) 1.82
Sheer Stress (62.4 * Hd * Slope) Ibs/sq.ft. 3.373
Sheer Velocity (32.2 * R * S )1/2 ft/sec 1.319
Unit Power(Ibs/ft/sec) (62.4 *Q*SMlblcf) 46.258
Friction factor (U/U*) 9.10
D50 mm 15.00
D84 mm 52.00

Bankfull Maximum Depth (dmbkf) ft 3.10
riffle min/max 2.8/3.6
Maximum Riffle Depth/Mean Riffle Depth ° ~ac~
Low Bank height ft 3.90
Low Bank Height/Max Riffle Depth
Meander Length (Lm)
min/max
Meander Length Ratio
Radius of Curvature (Rc)
Rc /Bankfull Width
Belt Width (Wblt)
Meander Width Ratio
;ti s~;~.~+., ~ g~ .
Valley Slope (VS) 0.03
Channel Slope (S) 0.03
Pool Slope (Sp) 0.01
min/max .00/.033
Pool Slope / S
Riffle Slope (Srfl) 0.03
min/max .022/.051
Srfl / S ,
Run Slope (Brun) 0.10
miNmax .023/.15
Brun / S 3.20
Glide Slope (Sgld) 0.00
min/max
Sgld / S 0.00
Max Pool Depth (Dmpd) ft 4.10
Dmpd /Dbkf ratio 1 9
Max Run Depth (Dmrun) ft 3.10
Dmrun /Dbkf 0.11
Max Glide Depth (Dmgld) ft
Dmgld /Dbkf
Pool Width (Wbkfp) ft 28.00
Wbkfp / Wbkf 0.96
Pool -Pool spacing ft 41.10
min/max 36.9/45.4
Pool -Pool / Wbkf 1.41
Pool Length 16.20
Pool Length Ratio 0.56
Riffle Length 39.50
Riffle Length Ratio 1.36
Glide Length 15.70
Glide Length Ratio 0.54
Run Length 14.80
Run Length Ratio 0.51
Channel Materials
D 16 mm 0.83
D 35 mm 8.90
D 50 mm 15.00
D 84 mm 52.00
D 95 mm 120.00

Mean
values
WNR
Cob Cob
6.1 6.1
29.10 30.20 28.00
27.9!32.4
2.08 1.86 2.00
1.8/1.9
13.99 #DIV/0! 14.00
14.7/17.8
60.53 56.172 56
52.9/59.1 5£i
33.92 32.00
3 ~<a2 0.00
306.40 242.7 200.00
236.8/248.5
10.53 ~' 0~; #DIV/0! 7.14
7.8/8.2
1.04 ~ (: #DIV/0! 0.87
-t ~:
;.;
;~~;.
12.00 8.47 8.48
726.34 475.77684 475.00
1.66 1.75
2.563 3.88
1.266 1.416
24.380 37.653
6.69 5.99
13 13.00
84 84.00

3.10 3.30 3.55
2.8/3.8
1.49 i -~ ;' #DIV/0! 7 7
3.50
1.26 1 v~~u
0.00

~~ Ov #DIV/0! (i ;fir;
0.00
Q 000 #DIV/0! ~ ~~i~..
n/a ~ v
0.00 #VALUE! 0.00
~x'=
.~. ~ ~i<
0.03 0.01 0.03
0.03 0.02 0.04
0.00 0.00
0/.037
0 t~ #DIV/0! 0.00
0.03 0.03 ~ :;:
.011 /.045
1.04 ?.0? 1.01
0.10 0.07 n~ ':1
.01/.14
320 2.98
o.oo o.oo o ©aa
.00/.035
0.00 {~.(:% 0 n0
4.10 4.10
1.97 x.20
3.30 3.548387
1.77
_28.10
0 ~' #DIV/0!
41.10 26.30 24.38410596
7.6/52
1.41 ~, `-" #DIVlO! 0.2
5.50 5.099337748
0.18 0.18
17.00 15.7615894
0.56 0.56
2.50 2.317880795 .~
0.08 0.08
6.10 5.655629139

0.20
0.20 _
Jl
1.30 1.30 -~
8.50 8.50 ~
13.00 13.00
84.00 84.00
200.00 200.00
10/8/2007

~~ I~
ROCK BRIDGE RESTORATION
Stream and Wetland Restoration
Haywood County, North Carolina
`~ '~
A ! t
Index of Pages ~°'/~~'~~~' ~
~`~ 1 ~
t~~ f ~
• Cover Pa e ~ V ~F~~;aPR
g
• Symbols and Notes _ ~"~~~~~~~~~?~~
•~, ,,~
• Overall Site Plan
• Stream Plan View
• Wetland Plan View
• Existing Cross Sections
• Longitudinal Profile
• Proposed Cross Sections
• Construction Typicals
CLIENT
Blue Sky Communities, Inc.
Nick Roknich
89 Walnut Street
Waynesville, NC 28786
~ PROJECT SUMMARY
• Restore natural dimension and profile of
impacted channel
• Stabilize banks and reduce erosion
• Establish buffers with native vegetation
• Restore impacted wetland
:1
' ~.
.n ~ ~~~.:~ Wetland and Natural Resource Consultants
:`;: • •~~• P,O. Box 882 Canton, N.C. 28716
• ,.R.,..
~'` `~" `~ 828-648-8801
PROJECT CODE:
BSCI-1000
DATE:
10-09-2007
DATE: REVISION:
PRELIMINARY PLANS
DO NOT USE FOR CONSTRUCTION
W
C~
O
m
Y
U
O
U
w
O
VICINITY MAP

Stream Enhancement Symbols
-~~ BANK UNDERCUT
BANK FAILURE
ROCK CROSS VANE
~ ROCK J-HOOK
ROOT WAD
~~~ LOG AND ROCK J-HOOK
~ ARMORED TOE OF SLOPE
------ BANKFULL
----- FLOOD PRONE
~~~J' EXISTING CHANNEL WITH THALWEG
RIFFLE
RUN
POOL
GLIDE
General Notes
i
~o
o '' g~
a~
~ ~o
zs
0
~~
J p
Wz
OC S
a
w
0
N
z
~~
~~~
z °°
~~
a
~°
a
c
0
c~
0

a

E a
~ o
~ ~ z
~ a~ ~
~ ~ c
~
-v U ~

~L ~,
W =
~- .~
Q
LL I Vl

Rock Bridge Stream and Wetland Restoration DATE: REVISION:
Hemphill Creek N:~, =--- _ _
,, ~~ ~
~~, n _ _
_~
~ i'~t~ Wetl d and~Natural Resowce Consultants --- -- - ~ ~ ~- - ---
~, ~~ ~ P.O. Box 882 Canton, N.C. 28716
Stream Plan View 828~ggg01 PRELIMINARY PLANS
DO NOT USE FOR RECONSTRUCTION
J

Rock Bridge Stream and Wetland Restoration
Hemphill Creek
Wetland Plan View
t
~~'~'~~ ~~
~
'
;.,
!', ti: Wetland and Natural Resource Consultants
~~!,;~' ~ P.O. Box 882 Canton, N.C. 28716
828-648-8801
DATE: REVISION:
PRELIMINARY PLANS
DO NOT USE FOR RECONSTRUCTION

Existing Riffle Cross Section #4
~ 2771
p 2767
''~ 2763
~ 2759
v 2755
w 2751
0
25
50
Bankfull Mean Depth:1.7'
Bankfull Width: 35.0'
Flood Prone Width: 278,4'
Existing Pool Cross Section #3
2772
=
' 2768
~ •~ 2764
c~ 2760
> 2756
w 2752
0
25 50
Maximum Pool Depth: 4.1'
Bankfull Pool Width: 28'

75 100 125 150 175 200 225
Distance
Existing Cross Section
Bankfull
Flood Prone Scale 1:20
75
100 125 150 175 200 225',
Distance
Existing Cross Section
Bankfull
Flood Prone Scale 1:20
~_
0
Z
z
0 ~
Jrc
a~
~o
~
Z
f~
Jo
Wz
~o
a~
w
0
~~
~_
N
~~~
U
~zo
w ~~
~~
a~~
N~
~ ~
'O G
~~
~O
,~ a
3
c
a~
E
U

C
~ ~
~ X

W o
'E ~
a.
~
'~ ~
0~ ~
~ p
~ ~
~ U ~
m s ~

~ Q
N
0 ~ 'X
~ 2 W

STA 0+00 - STA 1 +00
i
2757
~ 2755
2753
~' 2751
> 2749
w 27470

Existing Profile
Proposed Profile
10 20 30 40 50 60 70 80 90 100
Distance
Scale 1:10
__ _ _-
STA 1 +00 - STA 2+00
~ 2757
p 2755

~ 2751
v
> 27

_
2
47
w 100
110 120 130
Existing Profile
Proposed Profile
140 150 160 170 180 190 200 ~I
Distance
~~
i,
Scale 1:10
-- -__
___ - _-~

z ~_
Z~
~
0

~ f
I aN
~°
~
~ Q
o
Z~
~
Jp
Wz
°C S
a
a
0
~ ~
UN
~q~
V
~s°°°
~~
N ~
z~
b~
~~
a
~°
3
?~=
O
O

,,.., N

a ~
~ o
~ o
~ +
o
~
L =
W 0

~ ~ v
c~ ~ 4'
~ a
~ v
~ v ~
~ V ,~
~ - z~
m s
U ~ ~

~ v 0
= J

Proposed Riffle Cross Section

~ 12
'a:.r 8 -
4
v ~~
w
Bankfull Mean Depth: 2.0'
Bankfull Width: 28'
Flood Prone Width: 200'
Side Slope 2.5:1
Proposed Pool Cross Section
0 12
~ 4_ __~
4J ~5 95
W
Maximum Pool Depth: 4.41'
Bankfull Pool Width: 26.05'
Side Slope 2.5:1
Bankfull
Scale 1:20
Distance
-- Bankfull
- Flood Prone
85 95 105
i
Scale 1:20
75 65 55 45 35 25 15 5 0 5 15 25 35 45 55 65 75 85 95 105
Distance
~~ ~
M~
z~
a~~
~NN
x~°°
pkp
RJ
a
O
3
,~
J
a
E

U X
C
~ 0
-c 0
a
W
~ ~
N ~
~ ~
U) ~
N ~

N
~ _
OC
m U .~
= a~
00 o
v a
E n'
0
12

Proposed Riffle Cross Section
~ 1~
'~ 8
~ 4
w ~
4 5
35 ~5
Bankfull Mean Depth: 2.0'
Bankfull Width: 28'
Fload Prone Witlth: 200'
Side Slope 2.5:1
Proposed Pool Cross Section
1~
o
8
~~
> 4
_v
'~ W 0 45 35 ~5
i Maximum Pool Depth: 4,41'
Bankfull Pool Width: 26.05'
Side Slope 2,5:1
15 5 0 5
Distance
Bankfull
-- Flood Prone
15 5 0 5
Distance
15
15
Bankfull
~5
25
35
35
45
Scale 1:10
Z~
g~
~~ }o
~W
a~
zo
~s
J~
I ~ z
ag
~~
N
U
z~
~~
~~~
pkp
LA
~O
.. W
3
_z
,x~`~ r,_
-=~.

~ o

~ o
N

~ X
c
~ 0
~ o
w °'
~ ~
`~
a a~
~ ~
a~
a~ ~' ~c
~ V
~
A
L
M
IY1

I~

~ Q

~.
~ ~ ~
~ = a.

Bankfull Widt~~~
Base Width
~ ~
~ ~ ~
II
I
I
I,
BKF !,
Bench
- - ~/3-----~/3--~/3-
~~ ~ Gaps
i 20-30
I ~~~
it 2`
~ ,_..i No Gaps
Scour
~, Pool
Gut -off $il~
~ ~~, `~~; '~ Cut -off Sil
l
ii~~ ~~~
!, `
i
', I ~ ~--
P ~~ n UI e W ,Foundation /Footer Rocks
i
SLOPE
2:1
AND
~~.'i~~ ~' Bankfull
,r,', 0
^THAWE
~~
Cross Section
ooter Hocks
i
~, Z
o go
a
z
~ I~ ~°v
~g
I Z~
'~ 0
Wz
d
W
H
O
b
UN
vU
~zs
da
x ~a
U `D
co
z~
b~
~~
~d
_a
3
..~.. -~
_.
s=
+~
N
U
t6
C
W _
W ~^
^~^,, /u~
A A
~U ~
~ _ c~
ms ~
a ~
U ~ p
~ = U

BARE ROOT
PLANTINGS
LIVE STAKE:
P OF STREAM BANK
OF WATER
~~-~ ~
~ ~- , ~ .
~ ~
~ ~. ~ ~ ~ ~.
BARE ROOT /
CONTAINER PLANTINGS
TOP OF STREAM BANK
LIVE STAKES
~r
r
Plan View '~
__ __ _ _ --
Cross Section i
NOTES ON PLANTING:
• PLANT BARE ROOT PLANTS ABOVE THE TOPS OF
BANKS PLANT BARE ROOT PLANTS OUT TO THE
BUFFER WITDTH
• ALLOW 5'-10' BETWEEEN PLANTINGS
• CUT AND INSTALL LIVE STAKES ON THE SAME DAY
• INSTALL STAKES PERPENDICULAR TO THE BANK i
• LEAVE 115 OF THE STAKE ABOVE GROUND
• STAKES SHOULD BE 2-3' LONG AND 112-2" IN DIAMETER
• SPACE LIVE STAKES 2-3' APART ~i

~ Rock Bridge Stream Enhancement DATE: REVISION:
a.,
Hemphill Creek ~~~~ ~~
~,'~1
1
e,~ / P.O. Box 882 Caawn, N.C. 28716
szs~aa-8801 PRELIMINARY PLANS
Planting Typical DO NOT USE FOR RKONSTRUCFION

- --- _ __
__ ~
TRENCH
STAPLES
TOP OF STREAM BANK
EDGE OF WATER
EDGE OF MATTING/
~~ ~ ~ TOE OF SLOPE (UNDERWATER)
~~~ ~
i / ~ /. ~ /
~_~ II
CHANNEL FLOW ~,
'' Plan View
INSTALLATION: '
1. SLOPE BANKS ~
2. SEED BANKS I
3. PLACE MATTING TO MANUFACTURERS RECOMMENDATION
4. SECURE WITH 12" STAPLES ON 3' CENTER
I1 ~ ~~
MATTING ANCHORED IN A 6 INCH DEEP
TRENCH WITH STAPLES AND BACKFILL
Rock Bridge Stream Enhancement DATE: REVISION:
Hemphill Creek ~~I; -- ---
,,h~
,.,, _
u,~,~
N, ti~ ~ - _ __ _ _ _ __ _ -- --- _
~. ' Welland and Natural Resource Consultants
I,~,,~' P.O. Box 882 Canton, N.C. 28716
Matting Typical '' 828-648-8801
PRELIMINARY PLANS
DO NOT USE FOR RECONSTRUCTION