20210420 Ver 1_ePCN Application_20210322

DWR
mrlslon of Water Resources
Pre -Construction Notification (PCN) Form
October 26, 2020 Ver 3.3
Initial Review
Has this project met the requirements for acceptance in to the review process?*
r Yes
r No
Is this project a public transportation project?*
C Yes r No
Change only if needed.
BIMS # Assigned
20210420
Is a payment required for this project?*
r No payment required
r Fee received
r Fee needed - send electronic notification
Reviewing Office *
Asheville Regional Office - [phone]
Information for Initial Review
1a. Name of project:
Swannanoa River Stabilization at Veterans Park
1a. Who is the Primary Contact?*
Andrew Bick
1b. Primary Contact Email:*
[e-mail]
Date Submitted
3/22/2021
Nearest Body of Water
Swannanoa River
Basin
French Broad
Water Classification
C
Site Coordinates
Latitude: Longitude:
35.608464-82.335777
Pre -Filing Meeting Information
ID#
20210420
Pre -fling Meeting or Request Date*
2/22/2021
Attach documentation of Pre -Filing Meeting Request here:*
DWR Pre -Filing Meeting Request Form.pdf
Version#*
1
What amout is owed?*
r $240.00
r $570.00
Select Project Reviewer*
Andrew Moore:eads\awmoore3
1c. Primary Contact Phone:*
[phone]
Version
1
51.58KB
A. Processing Information C^U
County (or Counties) where the project is located:
Buncombe

Is this a NCDMS Project
r Yes r No
Is this project a public transportation project?*
r Yes r No
la. Type(s) of approval sought from the Corps:
* Section 404 Permit (wetlands, streams and waters, Clean Water Act)
r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
r Yes
r No
1b. What type(s) of permit(s) do you wish to seek authorization?
W Nationwide Permit (NWP)
r Regional General Permit (RGP)
r Standard (IP)
1c. Has the NWP or GP number been verified by the Corps?
r Yes r No
Nationwide Permit (NWP) Number: 13 - Bank Stabilization
NWP Numbers (for multiple NWPS):
1d. Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - Regular
r Non-404 Jurisdictional General Permit
r Individual Permit
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR401 Certification:
For the record only for Corps Permit:
r 401 Water Quality Certification - E)press
r Riparian Buffer Authorization
1f. Is this an after -the -fact permit application?*
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
Acceptance Letter Attachment
1h. Is the project located in any of NC's twenty coastal counties?
r Yes r No
1j. Is the project located in a designated trout watershed?
r Yes r No
B. Applicant Information
1d. Who is applying for the permit?
W Owner r Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
r Yes r No
2. Owner Information
2a. Name(s) on recorded deed:
The Town of Black Mountain
2b. Deed book and page no.:
DB1666, PG 257
2c. Responsible party:
2d.Address
*
r Yes r No
r Yes r No

Street Address
160 Midland Avenue
Address tine 2
Attn. Jessica Trotman, Planning Director
city
Black Mountain
Postal / Zip Code
28711
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
Andrew Bick
4b. Business Name:
Headwaters Engineering, PC
4c.Address
Street Address
45 Lotus Place
Address Line 2
City
Asheville
Postal / Zip Code
28804
4d. Telephone Number:
[phone]
4f. Email Address:*
[e-mail]
Agent Authorization Letter*
ToBM agent authorization. pdf
State province/ Pagion
NC
Country
USA
2f. Fax Number:
State / province / Rion
NC
Country
USA
4e. Fax Number:
28.36KB
C. Project Information and Prior Project History O
1. Project Information
1b. Subdivision name:
(if appropriate)
1c. Nearest municipality/ town:
Black Mountain
2. Project Identification
2a. Property Identification Number:
060983208900000
2c. Project Address
Street Address
10 Veterans Park Drive
Address Line 2
city
Black Mountain
Postal / Zip Code
28711
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Swannanoa River
3b. Water Resources Classification of nearest receiving water:*
C
2b. Property size:
17.18
State province/ Pagion
NC
Country
USA
3c. What river basin(s) is your project located in?*

French Broad
3d. Please provide the 12-digit HUC in which the project is located.
060101050602
4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The Swannanoa River at the project reach drains an 18.2-square-mile watershed With a mix of commercial, institutional, residential and forest land uses in eastern Buncombe County.
The immediate project reach of the river is bounded on the right bank by woods and a cleared path along a sanitary sewer main while the left bank has a narrow buffer between
Veterans Park and the river. Bank erosion has been an ongoing problem for several years and has recently begun to threaten park infrastructure, including a greenway trail and disc
golf course.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes r No r Unknown
4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)
quad map.pdf
404.73KB
4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)
Soil_Map.pdf 472.31 KB
4f. List the total estimated acreage of all existing wetlands on the property:
<0.5
4g. List the total estimated linear feet of all existing streams on the property:
2800
4h. Explain the purpose of the proposed project:*
The purpose of the project is to stabilize eroding banks in order to protect adjacent property, improve park user safety along the top of bank, and reduce fine sediment inputs to the
river.
Depending on construction costs, portions of the work may be delayed until additional funds become available.
41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
The project includes work in three areas along a 2000 linear -foot (LF) reach of the Swannanoa River at the Town's Veterans Park. The proposed restoration project, detailed in the
attached plans, involves the following:
Construction of 100 LF of new, off-line channel with grade control structures and bioengineering bank protection at a tight meander bend near the middle of the project reach;
• Back -filling abandoned channels with compacted on -site excavated materials
Bank sloping, installation of in -stream grade control structures and bioengineering bank treatments elsewhere on the reach where the channel Will remain in its current alignment; and
Riparian buffer planting.
Construction Will be performed using conventional earthwork equipment such as track -mounted excavators, dump trucks and loaders. Work will be performed from the top of bank as
much as possible. Two river crossings are planned at locations of proposed constructed riffles. Boulders and riprap imported for use in in -stream structures Will be used where practical
to create temporary flow diversions around in -stream work areas.
4j. Please upload project drawings for the proposed project.
swannanoa enhancement plans vet park 032221.pdf 27.05MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
r Yes r No r Unknown
Comments:
5b. If the Corps made a jurisdictional determination, what type of determination was made?*
r Preliminary r Approved r Not Verified r Unknown r N/A
Corps AID Number:
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company: ClearWater Environmental Consultants
Other:
5d1. Jurisdictional determination upload
1010DelineationFigure5.pdf 475.01 KB
6. Future Project Plans
6a. Is this a phased project?*
r Yes r No

Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
No
FD. Proposed Impacts Inventory
1. Impacts Summary
1a. Where are the impacts associated with your project? (check all that apply):
r Wetlands W Streams -tributaries r Buffers
r Open Waters r Pond Construction
3. Stream Impacts
3a. Reason for impact (?) 3b.lmpact type * 3c. Type of impact* 3d. S. name * 3e. Stream Type* [J.risclictol
f. Typf 3g. S. width * 3h. Impact
(?) on*length*
Stabilize eroding banks Permanent Bank Stabilization Swannanoa River Perennial Both 50 r(li-I
0
i1 9 Average (feet) earfeet)
31. Total jurisdictional ditch impact in square feet:
0
31. Total permanent stream impacts:
1,100
31. Total stream and ditch impacts:
1
3j. Comments:
E. Impact Justification and Mitigation
1. Avoidance and Minimization
31. Total temporary stream impacts:
0
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
The proposed stabilization measures were designed to: a) improve water quality by addressing bank erosion and reducing fine sediment inputs; and
b) improve aquatic habitats by creating bedform diversity and re-establishing riparian buffers. The design defines work areas to address the primary
problems and avoid impacts to existing mature vegetation and relatively stable and functioning river bed features.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
River work will not begin until all materials and equipment necessary to complete the work are on -site and erosion control practices are in place.
Equipment will operate from the top of bank as much as practical. Where river crossings are necessary, on -site cobble will be used with imported
riprap to form temporary ford crossings, which will later be re -configured as constructed riffles. Where site conditions permit, the contractor will use
imported rock and/or on -site cobble to form temporary flowdiversions to to force the thalweg away from active in -stream work areas. Construction will
be staged such that no more bank is disturbed than can be stabilized by the end of that work day.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
r Yes f• No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
The project will provide ecological uplift to the river.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes r No
If no, explain why:
Site is not located in a riparian buffer rule area.
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes r No
2b. Does this project meet the requirements for low density projects as defined in 15ANCAC 02H .1003(2)?
r Yes r No
Comments:

The project will not result in any increases in impervious surface and does not require a stormwater management plan.
G. Supplementary Information
1. Environmental Documentation
1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
r Yes r No
1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina)
Environmental Policy Act (NEPA/SEPA)? *
r Yes r No
Comments:*
The project intent and scope do not warrant an environmental document with this level of detail.
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15ANCAC 2H .0500), Isolated Wetland Rules (15A NCAC 21-1.1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
r Yes r No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
r Yes r No
3b. If you answered "no," provide a short narrative description.
The project will be a discrete river bank stabilization effort.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
r Yes r Nor N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
r Yes r No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
r Yes r No
5d. Is another Federal agency involved?*
r Yes r No r Unknown
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
r Yes r No
5g. Does this project involve bridge maintenance or removal?
r Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?*
r Yes r No
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
r Yes r No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
We consulted the USFWS website for species information and several T&E species epst in Buncombe County. Because the limits of disturbance will
be confined to a cleared road along a sanitary sewer easement, open park land and some wooded areas that have been disturbed in the past, we do
not believe impacts to endangered species or critical habitat will occur.
Consultation Documentation Upload
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes r No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*

NOAA fisheries website.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status?*
r Yes r No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
NC SHPO website (HPOWEB 2.0) shows site BN0199, a house dating to 1921, on the property directly east of the project site and well beyond the
project limits of disturbance.
7c. Historic or Prehistoric Information Upload
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain?*
r Yes r No
8b. If yes, explain how project meets FEMA requirements:
A no -rise study has been completed and submitted for review.
8c. What source(s) did you use to make the floodplain determination?*
NC FRIS website
Miscellaneous
Comments
A watershed delineation, geomorphic data, typical section and sediment transport calculations, and site photographs are attached for additional information.
Miscellaneous attachments not previously requested.
SUPPORTING DATA.pdf 277.85KB
veterans park photos.pdf 1.55MB
Signature
*
W By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request Within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a 'transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
• I intend to electronically sign and submit the PCN form.
Full Name:
Andrew Bick
Signature
Date
3/22/2021

Department of the Army
Wilmington District, Corps of Engineers
Attu. Ms. Amanda Jones
151 Patton Avenue #208
Asheville, NC 28801
-and-
NC DWR, 401 and Buffer Permitting Unit
512 North Salisbury Street
Raleigh, North Carolina 27604
I, the current landowner/managing partner of the property identified below, hereby authorize
Andrew Bick of Headwaters Engineering, PC to act on my behalf as my agent during the
processing of jurisdictional determination requests and permits to impact Wetlands and Water of
the US subject to Federal jurisdiction under Section 404 of the Clean Water Act and/or Section 10
of the Rivers and Harbors Act of 1899. Andrew Bick is authorized to provide supplemental
information as needed at the request of the USACE or DWR.
Additionally, I authorize representatives of the Wilmington District, US Army Corps of Engineers
to enter upon the property herein described for the purposes of conducting onsite investigations and
issuing a determination associated with Wetlands and Waters of the US subject to Federal
jurisdiction under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and
Harbors Act of 1899. One property owner of record must accompany any said representative
when the onsite investigation is conducted.
Property Owner of Record: Town of Black Mountain
Property Owner Address: 160 Midland Avenue, Black Mountain, NC 28711
Phone Number: 828.419.9300
Email address: tn5�.m��o�a� no �4�'n, ovs
v
Property Location: Town of BlackMountainVeterans Park
Owner/Managing partner Signature:r
Owner/Managing printed name: bsh wl •c vy C c\
Date: 31 I i 1 Zoe(

Swannanoa River Stabilization at Veterans Park 
USGS Black Mountain Quadrangle, 2019 

SITE 
Soil Map—Buncombe County, North Carolina
(Swannanoa River at Veterans Park)
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/17/2021
Page 1 of 339410703941160394125039413403941430394152039416103941070394116039412503941340394143039415203941610378460378550378640378730378820378910379000379090379180379270
378460 378550 378640 378730 378820 378910 379000 379090 379180 379270
35° 36' 39'' N 82° 20' 32'' W35° 36' 39'' N82° 19' 56'' W35° 36' 20'' N
82° 20' 32'' W35° 36' 20'' N
82° 19' 56'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
0 200 400 800 1200
Feet
0 50 100 200 300
Meters
Map Scale: 1:4,130 if printed on A landscape (11" x 8.5") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:12,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Buncombe County, North Carolina
Survey Area Data: Version 17, Jun 2, 2020
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: May 3, 2020—May 7,
2020
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.
Soil Map—Buncombe County, North Carolina
(Swannanoa River at Veterans Park)
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/17/2021
Page 2 of 3
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
BeA Biltmore loamy sand, 0 to 3
percent slopes, occasionally
flooded
0.0 0.0%
BnC Braddock-Urban land complex,
8 to 15 percent slopes
0.5 0.6%
DrB Dillard loam, 1 to 5 percent
slopes, rarely flooded
6.7 7.4%
IoA Iotla loam, 0 to 2 percent
slopes, occasionally flooded
17.4 19.2%
StB Statler loam, 1 to 5 percent
slopes, rarely flooded
3.1 3.4%
TsA Toxaway loam, 0 to 2 percent
slopes, frequently flooded
2.5 2.7%
UfB Udorthents-Urban land
complex, 0 to 5 percent
slopes, occasionally flooded
25.4 28.1%
UhE Udorthents-Urban land
complex, 2 to 50 percent
slopes
32.2 35.7%
UnC Unison loam, 8 to 15 percent
slopes
1.1 1.3%
Ux Urban land 1.5 1.7%
Totals for Area of Interest 90.3 100.0%
Soil Map—Buncombe County, North Carolina Swannanoa River at Veterans Park
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/17/2021
Page 3 of 3
n
n
Q
SWANNANOA RIVER ENHANCEMENT PROJECT
VETERANS PARK
BLACK MOUNTAIN, NORTH CAROLI NA
w
Q cr)
o z
o�
�W
u�
w
o 0
=Q
= V =w
=
N Q _
�nunul
_
o
o
--
u
U U
PREPARED FOR: ro
6
!
f 3519 2522
wz
11
o
/
�
3w
z
J
v 2531
2¢�g- zszz
-�o .�.
Q _
J
3s
zs u
_-
W' DP Black o ❑
Z
7
& wo��ta r1
1 i pan ` x 7.544 Pop. 8,125
w W
Lu
m
—�� 0 i aia
Z
U
u za" --- r
z
NORTH CAROLI NA
SHEETINDEX
1: TITLE
2: NOTES AND LEGEND
3: OVERVIEW & SHEET LAYOUT
4: CONSTRUCTION SEQUENCE
5-6: NCG01 SHEETS FOR EROSION CONTROL PERMIT
7: EROSION AND SEDIMENTATION CONTROL PLAN
8-11: PLAN AND PROFILE
12: TYPICAL SECTIONS
13-16: DETAILS
TE
W z
>�az
�zz Q
z0 w Q
O
zw ��
Q z > U
=Q Q
z m
W
DATE: MARCH 2O21
SCALE: AS SHOWN
TITLE
SHEET 1 OF 16

n
n
Q
w
CONSTRUCTION NOTES:
o
z
O
o
(n
1. WORK SHALL BE STAGED SUCH THAT NO MORE RIVERBANK IS DISTURBED THAN CAN BE STABILIZED AT THE END OF
j
THAT WORK DAY.
L']
2. EXCAVATION FOR THE NEW CHANNEL BETWEEN STA. 10+00 AND 11+00 SHALL BE COMPLETED PRIMARILY OFF-LINE IN THE
u
w
DRY, WITH FLOW BEING MAINTAINED IN THE EXISTING CHANNEL UNTIL THE NEW CHANNEL IS STABLIZED WITH SEED, MULCH,
a
m
0
MATTING AND IN -STREAM STRUCTURES.
3. EQUIPMENT SHALL OPERATE FROM THE TOP OF BANK AS MUCH AS PRACTICAL. CONSTRUCTION HAUL ROUTES AND
ACCESS LOCATIONS SHALL BE SELECTED SUCH THAT TREE REMOVAL AND OTHER IMPACTS ARE MINIMIZED.
10�
4. EXCESS EXCAVATED MATERIAL MUST BE DISPOSED IN APPROVED UPLAND AREAS OR OFF -SITE.
5. ALL EQUIPMENT SHALL BE CLEANED PRIOR TO MOBILIZATION AND SHALL BE MAINTAINED TO BE FREE OF LEAKS.
6. FUELING SHALL BE PERFORMED IN A CONTAINED AREAAT LEAST 200 FEET FROM FLOWING WATER.
=Q=
7. TREES BEYOND THE GRADING LIMITS SHALL BE PROTECTED. HARDWOOD TREES AND LOGS REMOVED DURING GRADING
v =�
N
SHALL BE SALVAGED FOR ON -SITE USE AS IN THE PROJECT UNLESS DIRECTED OTHERWISE. LOGS AND CLEARING DEBRIS
NOT USEFUL TO THE PROJECT SHALL BE DISPOSED OFF -SITE.
"""""""..... '
8. BIOENGINEERING PRACTICES AND LIVE STAKES SHALL BE INSTALLED DURING THE DORMANT SEASON, TYPICALLY
DECEMBER THROUGH APRIL. DEPENDING ON WHEN EARTHWORK IS COMPLETED, THIS MAY REQUIRE A SEPARATE PHASE.
LEGEND
EXISTING
PROPOSED
MINOR CONTOUR (1')
LIMITS OF DISTURBANCE
MAJOR CONTOUR (5)
STREAM CENTERLINE
PARCEL
TOP OF BANK
SANITARY SEWER
TOE OF BANK
STORM DRAIN
CONSTRUCTED RIFFLE
TREE
LOG VANE
WETLAND
BOULDER VANE
GEOLIFTS 1;1;lilili! i! i
BRUSH MATTRESS
TEMP. STREAM CROSSING
0
E o
th
0,7
0 U
wz
~�
a) 0
a� z
Z.
Qw
�
3 w
z
J
�0
U)
Q z
J
W w
N m
_
U
z
H
WLu �Z
0 a Z
Q Z Z
z0 W Q �
O
zwI �
Q Lu
Z > U
� 2 Q Q
Z m
W
DATE: MARCH 2O21
SCALE: AS SHOWN
NOTES AND
LEGEND
SHEET 2 OF 16

ml®
WORK AREA 3
1p
r
0' 120' 240' 360' `
I I I 'd
r MAPPING NOTES: Q
1. AERIAL IMAGERY DATED 2019. w
2. TOPOGRAPHIC DATA FROM BEN PATTON LAND Q Cf)
SURVEYING DATED FEB. 2019. DATUM IS NAVD88. 0
3. SANITARY SEWER LOCATION IS APPROXIMATE. zo
s
Lj
Ljj
WORK AREA 2
MONTREAT COLLEGE
SHE
ET04
�O-_Q-
TOWN OF
BLACK MOUNTAIN
1l•I
�•r- lam_
0
E 0 8
o U
wz cm
r.
aw Z
r`47 1 ill ` U
i w ul m W
Z
ci\
Y
W Z
0 a Z
®�. \ QOZZZ
1a. � Q =)
Q 2i W
ZUWY
Q z > U
U) _j
z 00
Lu
DATE: MARCH 2O21
SCALE: AS SHOWN
SHEET 3 OF 16

CONSTRUCTION SEQUENCE
d
d
Q
Mobilization and Site Preparation
1. Mobilize equipment and materials to the site and locate LOD.
2. Install the construction entrance/exit as shown on the plans. Use the existing cleared path on the right descending floodplain as the primary access to the work areas. Add crushed stone as needed to fill
ponded areas and protect the culvert crossing at Tomahawk Branch.
3. Hardwood trees that require removal per the plans shall be salvaged for on -site use.
4. Limit stripping to those areas that will be graded within 3 days in order to minimize subgrade softening.
5. The stems and root masses of exotic invasive species (multi -flora rose, Japanese honeysuckle, Chinese privet, etc.) generated during grading operations shall be burned on -site or disposed in approved
off -site locations. A permit from WNC Regional Air Quality Agency (828.250.6777) is not required, but burning must comply with agency regulations.
6. Any stockpiled materials not used for backfill within 7 days of excavation shall be stabilized with temporary seed and straw mulch.
Work Area 1
7. Slope right bank and establish temporary river crossing at constructed riffle using on -site cobble and gravel, with Class 1 stone as needed to create stable crossing.
8. Complete right bank grading excavation and haul enough cut material for geolifts on left bank. Temporarily stockpile excavated materials within the LOD and place silt fence on river side of temporary
stockpile.
9. Construct stone toe and geolifts on the left bank, operating from the top of the left bank as much as practical. Backfill abandoned channel behind completed geolifts. Cross to right bank when geolifts are
complete.
10. Fine grade constructed riffle with additional stone and wood per the plans.
11. Construct stone toe, geolifts and log vane on the right bank, operating from the top of the right bank as much as practical.
12. Naturalize the LOD and move to Work Area 2.
Work Area 2
13. Place Class 1 stone for constructed riffle between stations 8+30 and 9+10. Slope right bank and establish temporary river crossing at constructed riffle.
14. Complete off-line channel grading between stations 10+20 and 10+80, leaving bank material at upstream and downstream ends and maintaining flow in the original channel. Stabilize graded banks with
seed and matting. Install constructed riffle.
15. Haul cut materials to left bank for use in geolifts and channel backfill. Place silt fence on river side of stockpile.
16. Place stone/wood foundation for geolifts as temporary flow diversion across original channel to be abandoned. Remove bank material from upstream and downstream ends of off-line channel, allowing flow
to pass through new channel section.
17. Install log vanes on right bank between stations 11+00 and 11+60.
16. Proceed with geolifts, log vane and abandoned channel backfilling on left bank. Place and compact excess cut materials in abandoned channel section in lifts not exceeding 12 inches in thickness.
17. Install constructed riffle and geolifts between stations 12+20 and 13+80, working from left bank as much as practical and avoiding damage to existing park facilities.
Work Area 3
18. Establish haul road to Work Area 3 along tree line beyond outfield limits.
19. Perform bank grading and boulder vane installation.
20. Haul excess cut materials to abandoned channel section in Work Area 2 and use as backfill.
21. Disc, seed and mulch haul road through outfield.
22. Move all equipment back to right side of river
23. Abandon river crossing and fine grade constructed riffle between stations 8+30 and 9+10 with additional stone and wood per the plans.
24. Naturalize the LOD.
Demobilization
25. Rip, seed and mulch haul roads and staging areas.
26. Remove trash and debris and restore disturbed areas to their pre -construction conditions.
27. Remove construction entrance/exit.
Planting/Bioengineering
28. Bare root plants and live stakes shall be installed during the dormant season, generally December through March.
w
a �
0 Z
_O
0 cn
Lv
ry
U
W
W
0
�)EU)
N
W
W
Q
O
Z
Z
Z
IN
N
ut Z
H
U
W
O
a
H
Z
W
W
U
Z
2
Z
W
Y
a
W
Z
a
W
I-
W
r
0
E �
O
cmU
C: o
a) Z
ch
U
� J
J
W
�m
U
Z
U
Z
Z
Z
Y
Q
00
DATE: MARCH 2O21
SCALE: AS SHOWN
CONSTRUCTION
SEQUENCE
SHEET 4 OF 16

CL
Q
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCG01 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having
SECTION E: GROUND STABILIZATION
Required Ground Stabilization
Timeframes
Stabilize within this
Site Area Description
many calendar
days after ceasing
Timeframe variations
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
(HQW) Zones
7
None
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
(d) Slopes 3:1 to 4:1
14
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW Zones
flatter than 4.y 1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
terhninues in the tahle helnw-
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
ether mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
■ Rolled erasion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
■ Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
■ Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control p roducts with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
[JUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
TTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint q aint and other liquid waste into storm drains streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
CO- VE
o
a"s..P« °
SECT
-1-"E.E l-1..1E" o.,""o� E,,,,m E. „oR21
NCA
."Es.""�aEs1�r e,o""E, ""�"""„ "�"E,oFF"EE"o."o.
BELOW GRADE WASHOUT STRUCTURE ABOVE GRADE WASHOUT STRUCTURE
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGOI GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/19
Qv
s � ':
S
N =�
,
,,
,,,.,,,„,
lip
W
Q
O
Z
Q
Z
Z
I
+
ix t7
LU Z
U
W
O
Z
LU
W
U
Z
2
Z
W
Y
C/)
Z
Q
W
H
L1.1
r
0
E CD
LO
0U
� o
m
Z
U
J
to
J
ca LU
� m
U
Z
U
Z
Z
Z
D
O
Y
Q
m
DATE: MARCH 2O21
SCALE: AS SHOWN
NCG01 -1
SHEET 5 OF 16

d
d
Q
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect {during normal Inspection records must indude;
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Divislon.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2, Date and time of the inspection,
and within 24
3, Name of the person performing the inspection,
hours of a rain
4, Ind icatinn of whether the measures were operating
event? 1.0 inch In
properly,
24 hours
S, Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Storm water
At least once per
1, Identification of the discharge outfalls Inspected,
discharge
7calendar days
2, Date and time of the inspection,
outfalls (SDoq
and within 24
3, Name of the person performing the inspection,
hours of a rain
4, Evidence of Indicators of stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5, Indication of visit, le sediment leaving the site,
6, Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
Ilvisi ble sedimentation is Found outside site limits, then a record
site
7 calendar days
of the following shaft be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event � 1.0 inch in
2, Description, evidence, and date of corrective actions taken, and
24 hours
3- An explanation as to the actions taken to control future
releases.
(S) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has vlslble increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made -
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event? 1-0 inch in
2, Records of the required reports to the appropriate Division
24 hours
Regional Office per Part III, Section C, Item (2)(a) of this permit.
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization
ofgrading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of a1I la nd-d istu rb i ng
activity, construct Ion or redevelopment, permanent
ground cover).
2, Documentation that the required ground stabilization
measures have been provided within the required
11 mefra me ar an assurance that they will be provided as
soon as possible,
NOTE: The rain inspection resets the required 7 calendar day inspection requirement
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
The following items pertaining to the E&SC plan shall be kept on site and available for
inspection at all times during normal business hours.
Item to Document
Documentation Requlrementts
(a) Each E&SC measure has been installed
Initial and date each E&SC measure on a copy
and does not significantly deviate from the
of the approved E&SC plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan_ This documentation is required upon the
Initial installation of the E&SC measures or If
the E&SC measures are modified after initial
installation_
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an Inspect lon
report to indicate completion of the
construction phase.
(c) Ground rover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
plan or complete, date and sign an inspection
plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC measures
have been performed.
(e) Corrective actions have been taken Initial and date a copy of the approved E&SC
to E&SC measures. plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-NOI and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed onlywhen all of the following criteria have been met:
g
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours, an oral or electronic notification.
deposition in a
• Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Divislon staff may waive the requirement for a written report an a
case -by -case basis.
• If the stream is named on the NC 303fdj_Its_t as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill or release.
substances per Item
1(b)-(c) above
(c) Anticipated
. A report at least ten days before the dote of the hypass if passible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
• within 24 hoofs, an oral or electronic notification.
bypasses [40 CFR
• Within 7calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass.
• Within 24 hours, an oral or electronic notification.
(e) Noncompliance
with the conditions
• within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corretted, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122A1(I)(7)}
prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6),
• Division staff may waive the require mentfor a written report on a
case -by -case basis.
NCGO I SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19 1
`owumnu"';
w
W
W
Q
O
Z
Q
Z
Z
i
IN
in
LJ Z
U
W
O
a
Z
CW
G
W
U
Z
2
Z
W
Y
C/)
Z
a
W
I—
W
14
O
E �
O V
�U
� O
Z
to
� U
� J
� J
(0 W
Il) m
� U
Z
U
Z
Z
Z
O
G
Y
U
Q
m
DATE: MARCH 2O21
SCALE: AS SHOWN
NCG01 - 2
SHEET 6 OF 16

n
n
Q
US H1GNWAY i�
TEMPORARY
CONSTRUCTION ENTRANCE
x
LIMITS OF DISTURBANCE = 4.9 ACRES
CONSTRUCTION HAUL ROUTE
ALONG EXISTING CLEARED
SEWER EASEMENT
MONTREAT COLLEGE
ADD STONE AS
NEEDED TO
STABILIZE CULVERT
CROSSING
0i
=Q
V =�
=
CV _
y
0
E Lo
o
o q
IY t7
L) U
lu a
0)
a) z
aw
�
Z
U
J
K-BRANCH
C9
(n
s
u, w
m m
2
U
Z
DATE: MARCH 2O21
SCALE: AS SHOWN
EROSION &
SEDIMENTATION
CONTROL PLAN
SHEET 7 OF 16

Aft' I ��
F

F
� �— ' � � is �!•ir�rr01
Er
I NMI
- bR ski•
rI� �irr
•
• i` — - — milli
•0 40

Y ^
wil
y
TOWN OF BLACK
MOUNTAIN
dr
17
� •/� _- - � _ �fl ram' • �' - _ _ a �' s � i r_ ` � � //
r
fArfA
'� \ r � • -'-Cy ��� +fir �!�` - � r �' � � , �� /�
MRSVl-
� r 1,� •.. �1,-, ^��%. `. — —,. sue_ ,' �/ / /
-.. , �y_ ,Iti -sue • •

AIL
1
r ,
t� s
16+00
Oil
GEOLIFTS @ 1:1 SLOPE
f�
s
2285
2280
2275
2270
2265
TOWN OF BLACK MOUNTAIN
GRAVEL PATH
- MC)NTRFAT CY)I I FC;F
PLAN
BUILD BOULDER VANE
' " "'G 12 +/- ON -SITE
DERS IN THIS AREA
REMOVE TWO TREES <18" DIAM. .
LEFT BANK UPSTREAM OF VANE
_ ..AMII
W
REMOVE 5 LEANING
- ' TREES, LEAVE STUMPS
0 40' 80' 120'
P'OJ�G
ENO ,
2285
—
2280
-
2275
—
2270
2265
16+00 EXISTING GROUND @ (j 17+00 18+00 19+00 20+00
PROP. THALWEG PROFILE
o
/)
04
A
.`uumu".�� O\
0
0
AG �ry 0 U
lu a 6)
z4w
lu
Z
� U
iu Uj
m W
Y
�m
U
z
H
W � 13f Z
w a Z
Q Z Z
zwa�
O
Z W H
Q Z > U
�=aa
z m
Lu
DATE: MARCH 2O21
SCALE: AS SHOWN
PLAN & PROFILE
SHEET 11 OF 16

d
d
Q
_--- 20'TYP
\ � � — — —
52.5' ______---- _
— — — — 2.5 (TYP)
111 1111
—
1 4.5'
�.
—�---
3:1(TYP)
30.0'`�
04
1
TYPICAL RIFFLE
�QQ
12
1" = 20'
��,,,,,,,,,,,,,,,,,
0
0
o U
wz
Qw
o
Z
— — — — 1 66.8'
------�
I — ---
06ow?
�
U
15 -1
4
2.5
7.2'
Qz
=w
�-j
m
U
Z
20.0'
H
2 TYPICAL POOL
U U
12 1„-20'
W�oZ
0 a Z
Q Z Z
zwa�
O
Z W H
LEGEND NOTES:
Z Z Lu U
EXISTING 1. POOL TYPICALS DRAWN FOR RIGHT BENDING REACH; USE
Q > Q
MIRROR IMAGE FOR LEFT BENDING REACH.
(n 2 Q J
PROPOSED 0' 20' 40' 60' 2. BANKS SHALL BE ROUGHENED PERPENDICULAR TO SLOPE,
Z 00
COVERED WITH 2" LAYER OF TOPSOIL, SEEDED, MULCHED AND
LU
MATTED WITH 780 G/SM COIR FIBER MATTING.
3. BACKFILLED CHANNEL SEGMENTS AND OTHER DISTURBED AREAS
DATE: MARCH 2O21
SHALL BE SEEDED AND MULCHED.
SCALE: AS SHOWN
TYPICAL
SECTIONS
SHEET 12 OF 16

d
d
Q
O
A
BACKFILL UPSTREAM
Qj SIDE WITH ON -SITE
GRAVELAND COBBLE
18" MIN. DIAM.
HARDWOOD LOG
WITH INTACT ROOT MASS
IF AVAILABLE
ROOTWAD FOOTER ORS I
BOULDER AT TIE-IN I 1\47-
PLAN (AT HEAD OF POOL
BURY TIP IN
BED MATERIALS
TOP OF BANK
4% SLOP
ROOTWAD FOOTER OR
BOULDER AT TIE-IN
PROFILE A -A'
UNDERCUT SC
SEDIMENT FROM SUB
ACHIEVE MIN. 18" THICKNESS
}
GLIDE; STONE
ADDED WHERE
INDICATED
ON PLAN
MICF
TYF
TRENCH 4' INTO BANK
AND BACKFILL IN COMPACTED
LIFTS OR ON -SITE COBBLE
NAIL NON -WOVEN FILTER
FABRIC TO UPSTREAM
FACE OF LOG
BACKFILL W/ ON -SITE
GRAVEL AND COBBLE
4' MIN.
SECTION B-B'
1 LOG VANE
13 NTS
SECTION A -A'
RIFFLE;
SEE PLAN
FOR LENGTH
FABRIC 6" MIN.
BELOW BED
IVER BED
RUN;STONE
ADDED WHERE
INDICATED ON PL,
EMBED LOGS MIN. 3'
JERIAL:
;IPRAP MIXED WITH
ON -SITE COBBLE AND GRAVEL
PLAN
2 CONSTRUCTED RIFFLE
13 NTS
111,41 (1 Yr);
)E OF BANK (TYP);
=FLE EXTENDS
N. 1' BEYOND TOE
-VAGED ON -SITE 12"
J. DIAM. HARDWOOD
JNK (TYP);
NERALLY 3 TO 5 LOGS
R RIFFLE
HALF TO ONE -TON
BOULDER (TYP)
)ERING THALWEG
SE FLOW
SHARPEN POINT
NND DRIVE LOGS
NTO BANK
04
io ................
, 0
0
0
wz
~ w
aW
o
�' z
3w
Z
�
�,
J
a Z
J
W w
m
_
� U
z
I—
w � 13f Z
>0az
Q Z Z
zwa�
O
Z W H
Q Z > C)
=aa
z 00
w
DATE: MARCH 2O21
SCALE: AS SHOWN
STRUCTURE
DETAILS
SHEET 13 OF 16

6" DIVERSION BERM
IF DIRECTED
SEE COIR
MATTING DETAIL
2"
2"
18"
BRUSH MATTRESS STAKE
IR MATTING W/ MATTING STAKES
TOPSOIL
IlW10
COIR MATTING NOT SHOWN
FOR CLARITY
TOP OF MATTRESS
BRUSH MATTRESS
STAKE, TYP
TOE OF BANK0 0
400 0 0
STONE TOE' PLAN
RUSH MATTRESS STAKE
/E CUTTINGS
STONE TOE: MIX OF CLASS 1
RIPRAPAND ON -SITE COBBLE
AND GRAVEL
Q BASE FLOW
STREAM BED
2' MIN.
1' MIN.
T TYP [-- F-T TYP
LIVE CUTTINGS, SLIGHT
CRISS-CROSS
PATTERN, MIN. 15 STEMS PER
SQUARE YARD
1 BRUSH MATTRESS
14
NOTES: NTS
1. IF EARTHWORK IS DONE OUTSIDE OF THE DORMANT SEASON, GRADE BANK TO DESIGN SLOPES AND
DIMENSIONS, SEED, MULCH AND MAT THE BANKAND RETURN DURING DORMANT SEASON TO INSTALL
BRUSH CUTTINGS. REMOVE MATTING PRIOR TO BRUSH INSTALLATION.
2. PLACE LIVE CUTTINGS ON GRADED BANK WITH BUTT ENDS EXTENDING TO BASE FLOW WATER
SURFACE.
3. DRIVE STAKES HALFWAY INTO BANK BETWEEN CUTTINGS. WRAP TWINE AROUND STAKES AND OVER
CUTTINGS TIGHTLY. DRIVE STAKES FURTHER TO TIGHTEN TWINE AND SECURE CUTTINGS TO SLOPE.
4. FILL VOIDS BETWEEN CUTTINGS WITH LOOSE TOPSOIL. SEED AND MULCH SURFACE.
5. INSTALL EROSION CONTROL MATTING OVER TOPSOIL, USING 18" LONG MATTING STAKES.
6. PLACE STONE TOE OVER END OF MATTRESS AND MATTING.
d
d
Q
w
~a
Cf)
o
Z
o
_O
cn
LIVE STAKES AT 3' O.C.
w
12" COIR LOG ANCORED
W/ 18" WOODEN STAKES
COIR MATTING, 780 G/M2
0
ANCHORED WITH ECOSTAKES EXISTING
Q
m
0
OR APPROVED EQUAL GROUND
NOTE 1.
--------------
BANKFULL EL.
``,,,,, 1 1
1�
BASE FLOW
� COMPACTED SOIL
WITH 3-5% ORGANICS
v �p�- �AX O ,
\��------
ROOTWADS AND DENSELY PACKED
= �`cco z=Q
HARDWOOD
BRUSH; FILL VOIDS WITH ON -SITE
COBBLE AND/OR RIPRAP AS DIRECTED
= U ° N -�
FOUNDATION LOG
2 GEOLIFTS I —I -I -I -I
o
—I-I-I-I
E
14 NTS
N v
w ~ z_ 0)
o w W 1' z
�a�,
3J
Z
GEOLIFT NOTES:
la
Q J
1.
SLOPE 2.5:1 EXCEPT FOR RIGHT BANK AT STA. 16+00 WHERE SPACE LIMITS SLOPE
z
w w m
TO 1:1.
U
2.
TOP OF BRUSH / STONE FOUNDATION TO COINCIDE WITH BASE FLOW WATER
z
SURFACE. INCLUDE FOUNDATION LOGS PARALLEL TO TOE FACE TO SUPPORT
BRUSH. TEMPORARY WEIGHTS MAY BE NEEDED TO PREVENT LOGS AND BRUSH
FROM FLOATING DURING INSTALLATION.
3.
REMOVE SLUMPED AND LOOSE SOIL AND OVEREXCAVATE FOR STONE
H
FOUNDATION.
W Y U
4.
PLACE ENTIRE LENGTH OF STONE FOUNDATION.
Lu --) 13f Z
5.
ROLL COIR MATTING LENGTHWISE ALONG BANK, LEAVING 2' OF 6.5' ROLL WIDTH
% 0 a Z
OVER STONE FOUNDATION AND EXTENDING FLAP OF REMAINING COIR MATTING
a
OVER THE SLOPE.
Q Z Z
6.
PLACE COIR LOGS ON TOP OF COIR MATTING AND ANCHOR TO SUBGRADE WITH
Z W < =O
WOODEN STAKES EVERY 3'.
Q 2i W
7.
PLACE AND COMPACT 12" LIFT OF CLEAN SOIL OVER COIR AND AGAINST COIR
Z W F-
LOG.
Q Z > U
8.
APPLY TEMPORARY AND PERMANENT SEED MIX AND STRAW MULCH ON FLAT,
Q � Q
EXPOSED PORTION OF THE LIFT.
Q m
9.
WRAP REMAINDER OF COIR ROLL WIDTH UP AND OVER COIR LOG AND STAKE
z
W
COIR MATTING WITH WOODEN STAKES EVERY 3'.
10.
REPEAT STEPS 5 THROUGH 9 TO REACH THE TOP OF BANK. RIFFLE SECTIONS
RECEIVE THREE LIFTS AND POOL SECTIONS RECEIVE FOUR LIFTS.
DATE: MARCH 2O21
11.
INSTALL LIVE STAKES DURING DORMANT SEASON, DECEMBER THROUGH MARCH.
SCALE: AS SHOWN
BIOENGINEERING
DETAILS
SHEET 14 OF 16

RIPARIAN SEED MIX
Seeding Rate = 20 lb/acre
Mulching: wheat or oat straw mulch applied at 2 tons/acre
Common Name
Scientific Name
Percentage
Deer Tongue
Panicum clandestinum
20
Big Bluestem
Andropogon gerardii
20
Virginia Wildrye
Elymus virginicus
20
Indiangrass
Sorghastrum nutans
20
River Oats
Chasmanthium latifolium
20
BARE ROOT TREE AND SHRUB PLANTING
COMMON NAME
SCIENTIFIC NAME
SPACING
(FEET)
Tulip Poplar
Liriodendron tulipifera
12-18
Sycamore
Platanus occidentalis
12-18
Tag Alder
Alnus serrulata
8-12
Ninebark
Physocarpus opulifolius
8-12
Witch -hazel
Hamamelis virginiana
8-12
River Birch
Betula nigra
12-18
Bitternut Hickory
Carya cardiformis
12-18
TEMPORARY SEED MIX
Rate (lb/acre)
Rate (lb/acre) Applied
Application Dates
Common Name
Scientific Name
Applied
w/ Riparian Mix
Separately
August 15 to May 1
Rye Grain
Secale cereale
120
60
May 1 to August 15
Pearl Millet
Pennisetum glaucum
40
20
LIVE STAKE
SEED MIXES AND BUFFER PLANTING
NTS
MIN. 2 NODES ABOVE GRADE
TIN DIAMOND PATTERN
HARD SOIL OR STONE MAY
BE PRESENT SEE NOTE 1
n r 2' TO FIRST ROW
BASEFLOW W.S.
3 NODES MIN.
(ZPr_TInnI
NOTES:
1. FORM PILOT HOLE THROUGH HARD SOIL OR STONE TO
PREVENT DAMAGE TO STAKE.
2. LIVE STAKE MIX TO INCLUDE AT LEAST TWO OF THE
FOLLOWING SPECIES: SILKY DOGWOOD, SILKY WILLOW,
ELDERBERRY, NINEBARK, BUTTONBUSH.
2 LIVE STAKING
15 NTS
24" MIN.
TOP CUT AT 15'
AFTER
INSTALLATION
BUDS POINTED
UPWARD
1 /2" TO 2"
BASE CUT
AT 45 DEG.
LIVE STAKE DETAIL
FOOTER BOULDER
�� -A
��,
O� m
`
0
O
\�33
7Z
03
Z
-7 22'
IriIA\\I
BACKFILL WITH ON -SITE
GRAVEL AND COBBLE
TMEDI
Iy'I�
.
HEADER BOULDERm
12
TOP OF BANK
ANCHOR 4' MIN.
INTO BANK
DESIGN ''' LWEG
4% SLOPE J 1. 2'
J
FOOTER BOULDER
PROFILE A -A'
HEADER BOULDER
BACKFILL W/ ON -SITE
GRAVEL AND COBBLE —
NON -WOVEN
FILTER FABRIC
V MIN.
1' MIN.
RIVER B!
FOOTER BOULDER
SECTION B-B'
r3_"
BOULDER VANE
15 NTS
d
d
Q
Ov
=UcV1 N
)
CSC
,,,,.,.'00%QQ':
0
0
u7
o U
WZ 0)
~�
C o
N Z
�aW
3W
Z
J
aZ
-aJ
WW
m
_
� U
Z
H
W � 13f Z
0 a Z
Q Z Z
Z Z Q �
O
Lu
ZWF_
Q Z > U
=aa
Z 00
W
DATE: MARCH 2O21
SCALE: AS SHOWN
DETAILS
SHEET 15 OF 16

d
d
Q
TOP OF BANK
1' MIN
MATTING SHALL BE
780 G/M2 COIR
MATTING PLACED FLUSH WITH BANK SURFACE, LAP
OVER DOWN STREAM / DOWN SLOPE SEAMS
12" WOOD STAKE PLACED IN
3' O.C. DIAMOND PATTERN
MATTING ANCHORED 1'
BELOW STREAM BED
REMOVE ALL DEBRIS,
SCARIFY SURFACE, PLACE
TOPSOIL AND SEED/MULCH
BEFORE PLACING MATTING
STEEL T-POST
FILTER FABRIC
WITH WIRE BACKING
i
COMPACTED BACKFILL
RUNOFF
F
�
8"
SIDE
24" MIN.
4"
SECTION
1 COIR MATTING
16 NTS
8' MAX. —
STEEL T-POST
18" MIN.
FILTER FABRIC WITH
WIRE BACKING
PROFILE
NOTES:
1. SILT FENCE SHALL BE PLACED ON RIVER SIDE
OF ALL STOCKPILES.
2. SILT FENCE SHALL BE REMOVED UPON
COMPLETION OF EARTHWORK.
3. WIRE BACKING SHALL BE 14 GAUGE WITH
MAXIMUM MESH SPACING OF 6".
4. IMMEDIATELY REPLACE DAMAGED FABRIC.
5. REMOVE ACCUMULATED SEDIMENT BEFORE
HALF OF THE SILT FENCE CAPACITY IS
REACHED.
r2_'� SILT FENCE
16 NTS
PROP. EDGE OF EXISTING EDGE
STONE/BRUSH TOE OF WATER
WORK AREA ----
`---------------- ----------fl
-
BOULDERS OR CLASS 1 RIPRAP FOR
IN -STREAM STRUCTURE TEMPORARILY
PLACED AS FLOW DIVERSION
ROAD/DRIVEWAY
R=10'
9 MIN. THICKI`
CLASS A S7
12' MIN.
�— FLOW DIRECTION / THALWE
G
__-- f----------
PLAN
3 TEMP. ROCK FLOW DIVERSION
16 NTS
/I I N.
NOTES:
1. INSPECT PAD WEEKLY AND AFTER HEAVY
RAINS OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE
AND RUNOFF CONTROL. ADD DIVERSION AS
NEEDED TO KEEP RUNOFF ON -SITE.
3. TOPDRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMETN
TRACKED OR WASHED ONTO PUBLIC ROAD.
5. IMMEDIATELY REPAIR ANY BROKEN ROAD
PAVEMENT.
4 CONSTRUCTION ENTRANCE/EXIT
16 NTS
w
a Cf)
o Z
_O
o U)
W
o ry
U
N
W
0
yOv
Q'-
0
0
wz
o
z
Qw
3W
Z
U
J
W
w
m
_
� U
z
H
w � � Lu Z
0 a Z
Q Z Z
zw a�
O
Z W H
Q Z > U
=aa
Z 00
W
DATE: MARCH 2O21
SCALE: AS SHOWN
E&S
DETAILS
SHEET 16 OF 16

W1
S1
S1
S1
S1
Veterans P ark (+/- 2 .4 AC)
Ü
0 200 400100Fee t
Legend
Stream
Wetlan d
Project Bound ary
Contours (4 ft)
32 Clayton StreetAsheville, North Carolina 28801
Stream & WetlandDelineation MapDelineated March 7, 2019Figure 5
Buncombe County,North Carolina
Drawn by: BWY 3.8.19; CEC Project# 1010
Jurisdictional wetlands and waters identified on this map have been located within sub-meter accuracy utilizing a Trim ble mapping grade Global Positioning System (GPS) and the subsequent differential correction of that data. GPS pointsmay demonstrate uncorrectable errors due to topography, vegetative cover, and/or multipath signal error.
Note: The illustrated wetland and stream locations are approximate. These areas have been flagged in the field; however, they have not been surveyed. Although ClearWater Environmental Consultants, Inc. (C EC ) is confident in ourassessment, the US Army Corps of Engineers (Corps) is the only agency that can m ake final decisions regarding jurisdictional wetland and waters of the US delineations. Therefore, all prelim inary determinations are subject to change untilwritten verification is obtained. CEC strongly recomm ends that written verification be obtained from the Corps prior to closing on the property, beginning any site work, or making any legal reliance on this determination.
This m ap was prepared by C EC using the best inform ation available to CEC at the tim e of production. This m ap is for informational purposes only and should not be used to determine precise boundaries, roadways, property boundarylines, nor legal descriptions. This m ap shall not be construed to be an official survey of any data depicted.
Source Data: Topo - Buncom be CountyProject Boundary - Headwaters Engineering, PC
W etlan d (A C)St ream (LF)
W 1 0.033 S1 1222
Total 0 .0 3 3 Total 1 ,2 2 2
Potenti ally J uris di cti onal Water
SUPPORTING DATA
SWANNANOA RIVER ENHANCEMENT PROJECT
AT VETERANS PARK
BLACK MOUNTAIN, NC

Prepared By:

7/25/2018 StreamStats
https://streamstats.usgs.gov/ss/1/3
downstream reach

Basin Characteristics
Parameter
Code Parameter Description Value Unit
LC11BARE Percentage of barren from NLCD 2011 class 31 0.015 percent
LC11CRPHAY Percentage of cultivated crops and hay, classes 81 and 82,
from NLCD 2011
1.57 percent
LC11DEV Percentage of developed (urban) land from NLCD 2011
classes 21-24
27.5 percent
LC11FOREST Percentage of forest from NLCD 2011 classes 41-43 70.089 percent
LC11GRASS Percent of area covered by grassland/herbaceous using
2011 NLCD
0.477 percent
Region ID:NC
Workspace ID:NC20180725130147175000
Clicked Point (Latitude, Longitude):35.60911, -82.33878
Time:2018-07-25 09:02:05 -0400
7/25/2018 StreamStats
https://streamstats.usgs.gov/ss/2/3
Parameter
Code Parameter Description Value Unit
LC11IMP Average percentage of impervious area determined from
NLCD 2011 impervious dataset
3.59 percent
LC11SHRUB Percent of area covered by shrubland using 2011 NLCD 0.19 percent
LC11WATER Percent of open water, class 11, from NLCD 2011 0.017 percent
LC11WETLND Percentage of wetlands, classes 90 and 95, from NLCD 2011 0.111 percent
DRNAREA Area that drains to a point on a stream 18.3 square
miles
PCTREG1 Percentage of drainage area located in Region 1 percent
PCTREG2 Percentage of drainage area located in Region 2 percent
PCTREG3 Percentage of drainage area located in Region 3 percent
PCTREG4 Percentage of drainage area located in Region 4 percent
PCTREG5 Percentage of drainage area located in Region 5 percent
Peak-Flow Statistics Parameters [Peak Southeast US over 1 sqmi 2009 5158]
Parameter Code Parameter Name Value Units Min Limit Max Limit
DRNAREA Drainage Area 18.3 square miles 1 9000
PCTREG1 Percent Area in Region 1 percent 0 100
PCTREG2 Percent Area in Region 2 percent 0 100
PCTREG3 Percent Area in Region 3 percent 0 100
PCTREG4 Percent Area in Region 4 percent 0 100
PCTREG5 Percent Area in Region 5 percent 0 100
Peak-Flow Statistics Flow Report [Peak Southeast US over 1 sqmi 2009 5158]
Statistic Value Unit
Peak-Flow Statistics Citations
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered
to satisfy the quality standards relative to the purpose for which the data were collected. Although these
data and associated metadata have been reviewed for accuracy and completeness and approved for
7/25/2018 StreamStats
https://streamstats.usgs.gov/ss/3/3
release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the
display or utility of the data for other purposes, nor on all computer systems, nor shall the act of
distribution constitute any such warranty.
USGS So
pool-pool spacing (ft)p-p ratioreach 0.39---2138.6 (51.1 channel widths)---------length ratioslope (%)slope ratiolength (ft)2266226822702272227422762278228022820 500 1000 1500 2000 2500Elevation (ft)Channel Distance (ft)Swannanoa Riverbedwater srfbankfullx-sectionriffle crestpoolrunglideTP1------
Cross Section Bankfull DimensionsFlood DimensionsMaterials129.3 x-section area (ft.sq.)85.4 W flood prone area (ft)51D50 Bed (mm)48.6 width (ft)1.8 entrenchment ratio88D84 Bed (mm)2.7 mean depth (ft)--- low bank height (ft)31 threshold grain size (mm):4.1 max depth (ft) --- low bank height ratio50.4 wetted parimeter (ft)2.6 hyd radi (ft)18.3 width-depth ratioBankfull FlowFlow ResistanceForces & Power3.9 velocity (ft/s)0.045 Manning's roughness0.39 channel slope (%)500.6 discharge rate (cfs)0.17 D'Arcy-Weisbach fric.0.62 shear stress (lb/sq.ft.)0.43 Froude number8.7 resistance factor u/u*0.57 shear velocity (ft/s)9.2 relative roughness2.5 unit strm power (lb/ft/s)227722782279228022812282228322842285228622870 102030405060708090ElevationWidth1+04  Swannanoa River Riffle
Cross Section Bankfull DimensionsFlood DimensionsMaterials188.3 x-section area (ft.sq.)68.0 W flood prone area (ft)51D50 Bed (mm)56.1 width (ft)1.2 entrenchment ratio88D84 Bed (mm)3.4 mean depth (ft)--- low bank height (ft)39 threshold grain size (mm):5.0 max depth (ft) --- low bank height ratio58.2 wetted parimeter (ft)3.2 hyd radi (ft)16.7 width-depth ratioBankfull FlowFlow ResistanceForces & Power4.5 velocity (ft/s)0.045 Manning's roughness0.39 channel slope (%)850.9 discharge rate (cfs)0.16 D'Arcy-Weisbach fric.0.79 shear stress (lb/sq.ft.)0.44 Froude number9.3 resistance factor u/u*0.64 shear velocity (ft/s)11.6 relative roughness3.7 unit strm power (lb/ft/s)2274.02276.02278.02280.02282.02284.02286.02288.00 20406080100120ElevationWidth2+04 Swannanoa River Pool
Cross Section Bankfull DimensionsFlood DimensionsMaterials248.9 x-section area (ft.sq.)49.0 W flood prone area (ft)51D50 Bed (mm)83.4 width (ft)0.6 entrenchment ratio88D84 Bed (mm)3.0 mean depth (ft)--- low bank height (ft)33 threshold grain size (mm):6.1 max depth (ft) --- low bank height ratio88.9 wetted parimeter (ft)2.8 hyd radi (ft)27.9 width-depth ratioBankfull FlowFlow ResistanceForces & Power4.1 velocity (ft/s)0.045 Manning's roughness0.39 channel slope (%)1021.7 discharge rate (cfs)0.17 D'Arcy-Weisbach fric.0.68 shear stress (lb/sq.ft.)0.43 Froude number9.2 resistance factor u/u*0.59 shear velocity (ft/s)10.3 relative roughness3 unit strm power (lb/ft/s)227422762278228022822284228622880 20 40 60 80 100 120 140 160 180ElevationWidth3 + 31 Swannanoa River, Pool
Cross Section Bankfull DimensionsFlood DimensionsMaterials136.8 x-section area (ft.sq.)97.1 W flood prone area (ft)51D50 Bed (mm)40.9 width (ft)2.4 entrenchment ratio88D84 Bed (mm)3.3 mean depth (ft)--- low bank height (ft)38 threshold grain size (mm):5.2 max depth (ft) --- low bank height ratio43.2 wetted parimeter (ft)3.2 hyd radi (ft)12.2 width-depth ratioBankfull FlowFlow ResistanceForces & Power5.0 velocity (ft/s)0.040 Manning's roughness0.39 channel slope (%)685.4 discharge rate (cfs)0.13 D'Arcy-Weisbach fric.0.77 shear stress (lb/sq.ft.)0.50 Froude number9.3 resistance factor u/u*0.63 shear velocity (ft/s)11.6 relative roughness4.1 unit strm power (lb/ft/s)22742276227822802282228422860 20406080100120ElevationWidth5 + 80 Swannanoa River, Run
Cross Section Bankfull DimensionsFlood DimensionsMaterials186.5 x-section area (ft.sq.)93.0 W flood prone area (ft)51D50 Bed (mm)50.5 width (ft)1.8 entrenchment ratio88D84 Bed (mm)3.7 mean depth (ft)--- low bank height (ft)41 threshold grain size (mm):4.5 max depth (ft) --- low bank height ratio54.1 wetted parimeter (ft)3.4 hyd radi (ft)13.7 width-depth ratioBankfull FlowFlow ResistanceForces & Power5.3 velocity (ft/s)0.040 Manning's roughness0.39 channel slope (%)989.3 discharge rate (cfs)0.12 D'Arcy-Weisbach fric.0.84 shear stress (lb/sq.ft.)0.50 Froude number9.3 resistance factor u/u*0.66 shear velocity (ft/s)12.8 relative roughness4.8 unit strm power (lb/ft/s)2274227522762277227822792280228122822283228422850 102030405060708090100ElevationWidth9 + 14 Swannanoa River, Run
Cross Section Bankfull DimensionsFlood DimensionsMaterials151.0 x-section area (ft.sq.)133.5 W flood prone area (ft)51D50 Bed (mm)38.4 width (ft)3.5 entrenchment ratio88D84 Bed (mm)3.9 mean depth (ft)--- low bank height (ft)43 threshold grain size (mm):7.4 max depth (ft) --- low bank height ratio42.2 wetted parimeter (ft)3.6 hyd radi (ft)9.8 width-depth ratioBankfull FlowFlow ResistanceForces & Power4.8 velocity (ft/s)0.045 Manning's roughness0.39 channel slope (%)730.0 discharge rate (cfs)0.15 D'Arcy-Weisbach fric.0.87 shear stress (lb/sq.ft.)0.45 Froude number9.7 resistance factor u/u*0.67 shear velocity (ft/s)13.6 relative roughness4.6 unit strm power (lb/ft/s)2266226822702272227422762278228022820 20406080100120140160ElevationWidth 12 + 4 Swannanoa River, Pool
Cross Section 7Bankfull DimensionsFlood DimensionsMaterials193.6 x-section area (ft.sq.)93.4 W flood prone area (ft)51D50 Bed (mm)47.7 width (ft)2.0 entrenchment ratio88D84 Bed (mm)4.1 mean depth (ft)--- low bank height (ft)45 threshold grain size (mm):5.0 max depth (ft) --- low bank height ratio51.6 wetted parimeter (ft)3.7 hyd radi (ft)11.7 width-depth ratioBankfull FlowFlow ResistanceForces & Power5.0 velocity (ft/s)0.045 Manning's roughness0.39 channel slope (%)965.0 discharge rate (cfs)0.15 D'Arcy-Weisbach fric.0.91 shear stress (lb/sq.ft.)0.45 Froude number9.5 resistance factor u/u*0.69 shear velocity (ft/s)14.1 relative roughness4.9 unit strm power (lb/ft/s)22722274227622782280228222840 102030405060708090100ElevationWidth13 + 17 Swannanoa River, Riffle
Cross Section Ref PoolBankfull DimensionsFlood DimensionsMaterials204.3 x-section area (ft.sq.)--- W flood prone area (ft)51D50 Bed (mm)48.7 width (ft)--- entrenchment ratio88D84 Bed (mm)4.2 mean depth (ft)--- low bank height (ft)45 threshold grain size (mm):7.1 max depth (ft) --- low bank height ratio54.5 wetted parimeter (ft)3.8 hyd radi (ft)11.6 width-depth ratioBankfull FlowFlow ResistanceForces & Power5.6 velocity (ft/s)0.040 Manning's roughness0.39 channel slope (%)1146.5 discharge rate (cfs)0.12 D'Arcy-Weisbach fric.0.91 shear stress (lb/sq.ft.)0.51 Froude number9.8 resistance factor u/u*0.69 shear velocity (ft/s)14.5 relative roughness5.7 unit strm power (lb/ft/s)84.086.088.090.092.094.096.098.0100.00 10203040506070ElevationWidthSwannanoa River Reference Pool
Cross Section Ref RiffleBankfull DimensionsFlood DimensionsMaterials175.6 x-section area (ft.sq.)--- W flood prone area (ft)51D50 Bed (mm)39.7 width (ft)--- entrenchment ratio88D84 Bed (mm)4.4 mean depth (ft)--- low bank height (ft)46 threshold grain size (mm):5.6 max depth (ft) --- low bank height ratio45.9 wetted parimeter (ft)3.8 hyd radi (ft)9.0 width-depth ratioBankfull FlowFlow ResistanceForces & Power5.7 velocity (ft/s)0.040 Manning's roughness0.39 channel slope (%)998.4 discharge rate (cfs)0.12 D'Arcy-Weisbach fric.0.93 shear stress (lb/sq.ft.)0.51 Froude number9.6 resistance factor u/u*0.69 shear velocity (ft/s)15.3 relative roughness6.1 unit strm power (lb/ft/s)868890929496981000 5 10 15 20 25 30 35 40 45 50ElevationWidthSwannanoa River Reference Riffle
TypeD1620 3.4mean 33.2silt/clay0%D3527 12dispersion 1.7sand0%D5033 17skewness 0.00gravel95%D6542 20cobble5%D8455 29boulder0%D956439Size (mm)Size Distributionsilt/clay sandgravel cobble boulder05101520250%10%20%30%40%50%60%70%80%90%100%0.010.1110100 1000 10000
number of particles
percent finer thanparticle size (mm)Bankfull Channel Pebble Count, Swannanoa Rivercumulative %# of particles
TypeD1626mean 47.8silt/clay 0%D3540dispersion 1.8sand 3%D5051skewness -0.04gravel 61%D6565cobble 36%D8488boulder 0%D95130Size (mm)Size Distributionsilt/claysandgravel cobble boulder0510152025300%10%20%30%40%50%60%70%80%90%100%0.010.11101001000 10000
number of particles
percent finer thanparticle size (mm)Bed Surface Pebble Count, Swannanoa Rivercumulative %# of particles
Regional Curve Estimate Swannanoa at Veterans Park
Area Calculation Riffle DA (sq. mi.)18.20 from FIS
NC Mountains (area)155.42
Right Bank Slope, x:1 2.5 NC Mountains (discharge) 912.90
Left Bank Slope, x:1 2.5
Max Depth (ft)4.5 NC rural Piedmont (area)154.12
Bottom Width (ft)30 NC rural Piedmont (discharge) 719.18
Area 185.625
Bankfull Width (ft)52.5 26.25 USGS 2 year discharge
Bankfull Depth (ft)3.54 TN Hydro Area 1 1063.90
W/D ratio 14.85 TN Hydro Area 2 1681.52
SW Appalachian (area)248.27
SW Appalachian (discharge) 1322.00
Discharge Calculation overall reach
Q = 1.49/n R2/3 s1/2 A
WP (ft)54.23 slope design tw = 
R (ft)3.42
design slope 0.0039
Channel n 0.042
Q (cfs)937.85 riffle zigzag
V (fps)5.05
Rs = 0.83 psf d84 = 88 mm
Shields particle pred = 133 mm (Rosgen Data)d95 = 130 mm
5.2 in. <‐‐‐‐‐CONSTRUCTED RIFFLES HAVE D50 OF 8"; D100 OF 12"
Area Calculation Pool
Left Bank Slope, x:1 4
Right Bank Slope, x:1 2.5 width ratio = 1.27
Max Depth (ft)7.2 depth ratio = 2.04
Bottom Width (ft)20 area ratio = 1.68
Area 312.48
Bankfull Width (ft)66.8
pt bar tob o/s 38.8
outside bank tob o/s 28
TYPICAL SECTION DESIGN
Site Photographs ‐ Swannanoa River Stabilization at Veterans Park 
Black Mountain, NC 

Left Bank Erosion Threatening Water Valve and Bridge, Sta. 1+50 

Right Bank Erosion and Lateral Migration, Sta. 2+50 
Site Photographs ‐ Swannanoa River Stabilization at Veterans Park 
Black Mountain, NC 

Mid‐Channel Bar and Left Bank Erosion, Sta. 3+40 

Mid‐Channel Bar near Tomahawk Branch Confluence, Sta. 8+50 
Site Photographs ‐ Swannanoa River Stabilization at Veterans Park 
Black Mountain, NC 

Left Bank Erosion and Lateral Migration, Sta. 10+50 

Mid‐channel Bar near Sta. 13+00 
Site Photographs ‐ Swannanoa River Stabilization at Veterans Park 
Black Mountain, NC 

Right Bank Erosion, Sta. 16+00 

Left Bank Erosion at Site of Former Boulder Vane, Sta. 19+60 
DWR Pre-Fil ing Meeting Req u est Form
ID#*Ve rsion *
Re gional Office *
Re v ie we r List *
Contact Name *
Contact Email Addre ss *
Proje ct Name *
Proje ct Owne r *
Proje ct County *
Owne r Addre ss:
Is this a transportation proje ct?*
Type (s) of approv al sought from the DWR:
Doe s this proje ct hav e an e xisting proje ct ID#?*
Do you know the name of the staff me mbe r you would like to re que st a me e ting with?
Ple ase giv e a brie f proje ct de scription be low.*
Please give a couple of dates you are available for a meeting.
20210420 1
Asheville Regional Office - [phone]
Andrew Moore
Pre-Filing Me eting Reque st submitte d 2/22/2021
Andrew Bick
[e-mail]
Swannanoa River Enhancement at Veterans Park
Town of fBlack Mountain
Buncombe
City
Black Mountain
State / Province / Region
NC
Postal / Zip Code
28711
Country
United States
Street Address
160 Midland Ave
Address Line 2
Yes No
401 Water Quality Certification -
Regular
401 Water Quality Certification -
Express
Individual Permit Modification
Shoreline Stabilization
Yes No
The project involves stabilizing eroding banks and improving bed
form along a 2000-LF reach of the Swannanoa River at Veterans
Park.
Ple ase attach the docume ntation you would like to hav e the me e ting about.
Signature
Submittal Date
3/9/2021
3/12/2021
3/16/2021
3/19/2021
swannanoa enhancement plans 022221.pdf 17.12MB
pdf only
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:

· This form completes the requirement of the Pre-Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
· I understand by signing this form that I cannot submit my application until 30 calendar days after this pre-filing
meeting request.
· I also understand that DWR is not required to respond or grant the meeting request.

Your project’s thirty-day clock started upon receipt of this application.  You will receive notification regarding meeting location
and time if a meeting is necessary.  You will receive notification when the thirty-day clock has expired, and you can submit an
application.
2/22/2021