20160918 Ver 1_401 Application_20160916

WILDLANDS
ENGINEERING
September 8th, 2016
20160918
Ms. Karen Higgins PAI LDF
NCDENR
Division of Water Resources, 401 & Buffer Permitting Unit ---
1617 Mail Service Center
512 N. Salisbury St.
Archdale Building — 9th Floor
Raleigh, North Carolina 27699-1617
Subject:
Pre -Construction Notification Pursuant to Nationwide Perm
and Water Quality Certification No. 3885
Mud Creek Bank Stabilization Project
Hendersonville, North Carolina
Dear Ms. Higgins:
The Mud Creek Bank Stabilization Project is located immediately downstream of the North Main Street bridge,
approximately one mile north of downtown Hendersonville, in Henderson County, NC (Figure 1). Wildlands
Engineering (Wildlands) is working with the City of Hendersonville (City) to design and stabilize the left (or
southwest) bank of Mud Creek which is laterally eroding and potentially threatening two sewer mains and a
greenway trail nearby. An Agent Authorization Form is attached which provides verification that Andrew Bick,
the project manager for Wildlands Engineering, is acting on behalf of the City.
The proposed project involves the stabilization of approximately 150 linear feet of the eroding left bank along
Mud Creek. The landowner has used an excavator to dredge sand from Mud Creek for several years, leaving the
left bank unstable and devoid of woody vegetation. Over the past several months, bank instability has begun
threatening two sewer mains that the City controls within a sewer easement. The City is concerned about the
long term stability of the bank and with potential impacts to a recently paved greenway trail on the sewer
easement. Wildlands understands that the City will be meeting with the landowner to discuss long term use of
the dredge site and ways that the bank adjacent to the sewer lines and greenway can be protected from damage
during subsequent dredge activities after the stabilization project is complete.
Stabilization of the bank will involve a combination of bank grading and bioengineering. A geolift is proposed for
installation along the upstream 100 linear feet at a side slope of 1.5:1 using eight soil lifts (each are one foot in
height). Installation of the geolift will enable the bank to be built out slightly from the existing top of bank,
thereby providing for additional bank width and protection for the two sewer mains. Bank grading along the
downstream 50 linear feet will transition to a cut bank with a 2:1 side slope which will provide material for the
soil lifts upstream. A stone toe is proposed along the base of the entire 150 foot reach for scour protection. All
proposed construction activities will take place downstream and outside the limits of the NCDOT right-of-way
along North Main Street. Construction access to the site can be gained from an unpaved road just off of North
WWildlands Engineering, Inc. (P) 828.633.6401 • 167-B Haywood Road • Asheville, NC 28806

Main Street that slopes down and connects to the sewer easement and greenway trail. All construction will be
performed from the top of the left bank using a track hoe.
Please find enclosed four copies of our PCN package for the subject project. We have included the following
supporting data:
• PCN form,
• Vicinity, USGS, and Site Maps,
• 11" x 17" copy of the 60% plan set,
• Signed Agent Authorization Form, and
• Photolog.
This same information has been submitted to the NC Division of Water Resources, US Fish and Wildlife Service
Asheville Office, and North Carolina Wildlife Resources Commission. If you have any questions, please contact
me at 828.774.5547 or [e-mail].
Sincerely,
G�m&
Andrew Bick, PE, CFM
Water Resource Engineer
Enclosure
WWildlands Engineering, Inc. (P) 828.633.6401 • 167-B Haywood Road • Asheville, NC 28806

o��oFywn rF9oe
0 Nii ' T
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form — Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the Corps:
❑X Section 404 Permit ❑ Section 10 Permit
1b.
Specify Nationwide Permit (NWP) number: 13 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑ Yes NX No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
❑X 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑X No
For the record only for Corps Permit:
❑ Yes ❑X No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes NX No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes NX No
2.
Project Information
2a.
Name of project:
Mud Creek Bank Stabilization Project
2b.
County:
Henderson
Hendersonville
2c.
Nearest municipality / town:
2d.
Subdivision name:
2e.
NCDOT only, T.I.P. or state project no:
DEQ-WgTER
3.
R PERMITTING
Owner Information
3a.
Name(s) on Recorded Deed:
Boyd L. Hyder (Note: City has sewer easement through this property)
3b.
Deed Book and Page No.
DB 1560, PG 428
3c.
Responsible Party (for LLC if
applicable):
Boyd L. Hyder
3d.
Street address:
1590 N Main St
3e.
City, state, zip:
Hendersonville, NC 28792
3f.
Telephone no.:
3g.
Fax no.:
3h.
Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑X Agent ❑ Other, specify:
4b.
Name:
Brent Detwiler
4c.
Business name
(if applicable):
City of Hendersonville
4d. Street address:
305 Williams Street
4e.
City, state, zip:
Hendersonville, NC 28792
4f.
Telephone no.:
828-697-3000
4g.
Fax no.:
828-697-3066
4h.
Email address:
[e-mail]
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Andrew Bick
5b.
Business name
(if applicable):
Wildlands Engineering, Inc.
5c.
Street address:
167-B Haywood Road
5d.
City, state, zip:
Asheville, NC 28806
5e.
Telephone no.:
828-545-3865
5f.
Fax no.:
704-332-3306
5g.
Email address:
[e-mail]
Page 2 of 10

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
9569653273
1 b.
Site coordinates (in decimal degrees):
Latitude: 35.334791 Longitude: -82.463861
1c.
Property size:
2032 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Mud Creek
2b.
Water Quality Classification of nearest receiving water:
C
2c.
River basin:
French Broad
3.
Project Description
3a. 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 left bank of Mud Creek is laterally eroding and potentially threatening two sewer mains and a greenway trail in close proximity. The landowner has
used an excavator to dredge sand from Mud Creek for several years, leaving the left bank unstable and devoid of woody vegetation. The City is
concerned about the long term stability of the bank and with potential impacts to the recently paved greenway trail on the sewer easement.
3b.
List the total estimated acreage of all existing wetlands on the property: 0
3c.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 1,500
3d. Explain the purpose of the proposed project:
The purpose of this project is to stabilize the eroding creek bank, thereby protecting the adjacent sanitary sewer and greenway trail.
3e. Describe the overall project in detail, including the type of equipment to be used:
See attached sheet
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (includingall prior phases)in the past?
❑ Yes ❑ No ❑X Unknown
Comments:
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
❑ Preliminary ❑ Final
4c.
If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
4d.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5.
Project History
5a.
Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
El Yes ❑X No ❑ Unknown
5b.
If yes, explain in detail according to "help file" instructions.
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ❑X No
6b.
If yes, explain.
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑X Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes/No
-
W2 -
Choose one
Choose one
Yes/No
-
W3 -
Choose one
Choose one
Yes/No
-
Wq -
Choose one
Choose one
Yes/No
-
W5 -
Choose one
Choose one
Yes/No
-
W6 -
Choose one
Choose one
Yes/No
-
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Stabilization
Mud Creek
PER
Corps
40
150
S2 -
Choose one
S3 -
Choose one
-
-
S4 -
Choose one
S5 -
Choose one
-
-
S6 -
Choose one
-
-
3h. Total stream and tributary impacts
150
3i. Comments:
Impacts will include stream stabilization along Mud Creek. The stream impact falls under both Corps and NCDWR jurisdiction.
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 -
Choose one
Choose
02 -
Choose one
Choose
03 -
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then vou MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary T
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
B1 -
Yes/No
B2 -
Yes/No
B3 -
Yes/No
B4 -
Yes/No
B5 -
Yes/No
B6 -
Yes/No
6h. Total Buffer Impacts:
6i. Comments:
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The project represents a long-term benefit to Mud Creek and overall watershed by stabilizing an eroding bank and reducing fine sediment inputs.
Construction phase best management practices will help minimize the short-term impacts, as described below.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
The project will begin only after all materials are stockpiled nearby. Equipment will operate from the top of bank to install the stabilization measures.
The contract documents will require well-maintained and functioning equipment and daily checks for leaks. An emergency spill plan will also be
required.
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?
❑ Yes ❑X No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
El Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non -riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes OX No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1 a.
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ❑X No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
2b.
Does this project require a Stormwater Management Plan?
❑ Yes ❑x No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
Project does not constitute development or an increase in impervious area.
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e.
Who will be responsible for the review of the Stormwater Management Plan?
3.
Certified Local Government Stormwater Review
3a.
In which localgovernment's jurisdiction is thisproject?
n/a
1:1 Phase II
❑ NSW
3b.
Which of the following locally -implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
4.
DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a.
Which of the following state -implemented stormwater management programs apply
❑ ORW
(check all that apply):
E] Session Law 2006-246
❑Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
1 a.
Does the project involve an expenditure of public (federal/state/local) funds or the
Yes ❑ No
use of public (federal/state) land?
1 b.
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
❑ Yes ❑X No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes Q No
letter.)
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
❑ Yes ❑X No
or Riparian Buffer Rules (15A NCAC 2B.0200)?
2b.
Is this an after -the -fact permit application?
❑ Yes ❑X No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3.
Cumulative Impacts (DWQ Requirement)
3a.
Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes 0 No
additional development, which could impact nearby downstream water quality?
3b.
If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4.
Sewage Disposal (DWQ Requirement)
4a.
Clearly detail the ultimate treatment methods and disposition (non -discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
❑ Yes ❑X No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
Yes ❑ No.
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
FWS is currently reviewing potential species or habitat impacts
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑X No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
NOAA Habitat Conservation Mapping Tool
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
❑ Yes ❑X No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
NC Historic Preservation Office web mapping tool
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
❑X Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
Flood study and no -rise certification submitted to Henderson County
8c: What source(s) did you use to make the floodplain determination?
www.ncfloodmaps.com website
Andrew Bick
08-31-2016
Applicant/Agent's Printed Name
Date
Applicant/Agent's Signature
(Agent's signature is valid only if an authorization
letter from the applicant isprovided.)
Page 10 of 10

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Henderson County, NC

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Mud Creek Bank Stabilization Project
*V,WILDLANDS French Broad River Basin
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1 1 1 1 1
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Construction Notes:
GENERAL NOTES:
1. CONTACT NORTH CAROLINA "ONE CALL" CENTER (1-800-632-4949) PRIOR TO
COMMENCEMENT OF WORK. ALL DAMAGE TO UTILITIES BY CONTRACTOR
SHALL BE REPAIRED AT CONTRACTOR'S EXPENSE.
2. CONTRACTOR TO REPAIR DISTURBED AREAS TO PRE -PROJECT CONDITIONS.
3. CONTRACTOR SHALL DISPOSE OF EXCESS SOIL, ROCK, GRAVEL AND OF CLEARED
AND GRUBBED MATERIALS INCLUDING TREES, SHRUBS, AND INVASIVE SPECIES
ON PROJECT SITE AT A LOCATION DESIGNATED BY THE OWNER. NO EXCAVATED
MATERIALS MAY LEAVE THE PROPERTY.
Existing Features
---TB-----TB--- Existing Top of Bank
— OHE
Existing Overhead Electric Lines
0
Existing Power Pole
Existing Fence
- - --
Existing Sewer Line
Existing Toe of Bank
Existing Tree
EROSION CONTROL NOTES:
1. CONTRACTOR SHALL INSTALL AND MAINTAIN EROSION AND
SEDIMENT CONTROL DEVICES IN ACCORDANCE WITH LOCAL, STATE
AND FEDERAL REQUIREMENTS. ADDITIONAL EROSION AND
SEDIMENT CONTROL BASED ON WEATHER CONDITIONS OR
ADDITIONAL DISTURBANCE SHALL BE AT CONTRACTOR'S EXPENSE.
2. LOCATE EQUIPMENT AND MATERIALS STAGING LOCATIONS SO AS
TO MINIMIZE SITE DISTURBANCE. ENGINEER TO APPROVE ANY
STAGING AREAS NOT DEPICTED ON PLANS.
3. INSTALL SILT FENCE ON STREAM SIDE OF ALL SOIL STOCKPILE AREAS
OR STAGING AREAS THAT CREATE BARE GROUND CONDITIONS.
4. INSTALL APPROPRIATE EROSION AND SEDIMENT CONTROL DEVICES
PRIOR TO COMMENCING EARTHWORK AND IN -CHANNEL WORK.
S. EQUIPMENT BROUGHT TO PROJECT SITE SHALL BE CLEAN AND FREE
OF LEAKS.
6. CONTRACTOR SHALL PERFORM FUELING AND MAINTENANCE
ACTIVITIES AT LEAST 100 FEET AWAY FROM STREAM AND SHALL
MANAGE ALL FLUIDS TO PREVENT LEAKING ONTO GROUND OR TO
ALLOW FOR IMMEDIATE CLEAN-UP.
7. WORK SHALL BE LIMITED TO AN AREA THAT CAN BE STABILIZED
WITH SEED, STRAW AND MATTING BY THE END OF EACH WORK
DAY.
Proposed Features
�'-------------cam Proposed Top of Bank with Grade Tie-in
1+00
Proposed Toe of Bank
---------------
Proposed Site Access
— i-�­ Proposed Silt Fence
Proposed Geolifts
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2090
2085
2080
2075
2070
2065
CROSS-SECTION 1 2060
STA 1+73 0+00
2085
2080
2075
2070
2065
2060
CROSS-SECTION 3
STA 2+69 2055
2090
2085
2080
2075
2070
2065
2060
0+50
2085
PROPOSED CUT BANKS
2080
\ 2075
BAS EFLOW WATER
EXISTING GRADE �� ELEVATION
27 2070
— —
2065
LPROPOSED STONE TOE 2060
2
0+00
055
0+50
2085
2080
2075
2070
2065
2060
CROSS-SECTION 2 2055
0
CROSS-SECTION 1
EXISTING TOP OF BANK
EXISTING SEWER LINES
zz�g�m
mm
�� OVnmZ
�w 2Z1��+fy
S airypp
AZ==mOd
omd..x�
aZ�a�LL€
PROPOSED GEOLIFTS
PROPOSED GEOLIFTS
EXISTING GRADE \
EXISTING GRADE
� ISI
BASEFLOW WATER
ELEVATION
EXISTING SEWER LINE
LPROPOSED STONE TOE
EXISTING SEWER LINES PROPOSEDSTONETOE
STA 1+73 0+00
2085
2080
2075
2070
2065
2060
CROSS-SECTION 3
STA 2+69 2055
2090
2085
2080
2075
2070
2065
2060
0+50
2085
PROPOSED CUT BANKS
2080
\ 2075
BAS EFLOW WATER
EXISTING GRADE �� ELEVATION
27 2070
— —
2065
LPROPOSED STONE TOE 2060
2
0+00
055
0+50
2085
2080
2075
2070
2065
2060
CROSS-SECTION 2 2055
0
CROSS-SECTION 1
EXISTING TOP OF BANK
EXISTING SEWER LINES
zz�g�m
mm
�� OVnmZ
�w 2Z1��+fy
S airypp
AZ==mOd
omd..x�
aZ�a�LL€
PROPOSED GEOLIFTS
EXISTING GRADE \
BASEFLOW WATER
ELEVATION
ISI
EXISTING SEWER LINE
LPROPOSED STONE TOE
STA 2+25 0+00
2080
2075
2070
2065
2060
CROSS-SECTION 4
STA 2+86 !nts
2085
,-i
U
'�
Z
2080
2075
co
2070
;..4
Q)
2065
��j
`J
x
2060
2055
�C
0+50
PROPOSED CUT BANK
- -- ---- _________— BASEFLOW
ING G
EXISTRADE WATER
ELEVATION
2I �
PROPOSED STONE TOE
- 0+00
2085
2080
2075
2070
2065
2060
055
2
0+50
t
-4

0
NOTES:
1. THE TOP OF EACH LIFT SHALL BE SEEDED AND MULCHED BEFORE WRAPPING WITH MATTING.
2. SOIL USED FOR LIFTS SHALL BE CLEAN, LOAMY SOIL FREE OF ROCKS AND DEBRIS.
3. LIFTS SHALL BE MODERATELY COMPACTED SO THAT FOOTPRINTS ARE NOT VISIBLE UPON COMPLETION.
4. LIVE STAKING SHOULD BE COMPLETED DURING THE DORMANT SEASON, GENERALLY DECEMBER TO APRIL.
TOP MATTING LAYER
ANCHORED IN 6" TRENCH
6" DIVERSION BERM
OR STRAW WATTLE
UNI -AXIAL GEOGRID EVERY OTHER bF-T
ANCHORED PER MANUFACTURER'S
RECOMMENDATION
EXCAVATED BEYOND SLUMP PLANE 1.5'-{
COMPACTED SOIL ;:;.....::
2" WITH 3 -5% ORGANICS
UPHILL
00
Typical
Stakes
1
Species for GeoliR Live Branches
(use atleast 3 of species listed)
Scientific Name
Common Name
Comus amomum
Silky Dogwood
Salix sericea
Silky Willow
Physocarpus opulifolius
Ninebark
Salix nigra
Black Willow
Sambucus canadensis
Elderberry
Cephalanthus occidentalis
Buttonbush
SOIL LIFTS REFORCED WITH
ROLANKA BIO -D BLOCK 12-300.
LIVE BRUSH CUTTINGS @ MAX. 12" O.C.,
SEE SPECS FOR SPECIES
1.0'
COIR MATTING EXTENDS 4' INTO BANK 1 4.
18" WOOD STAKE PLACED IN 3'
O.C. DIAMOND PATTERN 2 0. 3' MIN.
MIX OF EQUAL PARTS
CLASS 1 AND CLASS 2 RIPRAP
WIRE J U
FILTER FABRIC
COMPACTED FILL
` I I
I I
EXTEND FABRIC '4 i
NOTES: INTO TRENCH
1. USE WIRE A MINIUM OF 32" IN WIDTH
AND WITH A MINIMUM OF 6 LINES OF
WIRES WITH 12" STAY SPACING.
2. USE FILTER FABRIC A MINIMUM OF 36"
IN WIDTH AND FASTEN ADEQUATELY
TO THE WIRES AS DIRECTED BY THE
ENGINEER.
3. PROVIDE 5' STEEL POST OF THE
SELF -FASTENER ANGLE STEEL TYPE.
ANGLE STEEL TYPE.
n Temporary Silt Fence
Not to Scale
U
EXISTING GROUND
Oa
CL u.r
J
LU =
LU O
N N
LIVE STAKE (TYP)\
BASEFLOW WATER
ELEVATION
TOE OF SLOPE T
Section View
LIVE STAKE (TYPI, TOP OF BANK
A A 2 A A
4
A A A rO36„ A A
A A A A A
A A A A A
A A A A A
6" MIN. OVERLAP IN
DOWNSTREAM DIRECTION
AT MAP ENDS
STAKE (TYP)\ I ITOP OF BANK
A X A A
3MA A A
G A A A A A
SN
C/ A A A A
A A A
TOE OF SLOPE
Plan View
EROSION CONTROL
MATTING (TYP)\ �OF BANK
ECOSTAKE (TYP) �
TOE OF
NOTE:
TOE STAKE (TYP) 1. 700 g/m' Coir Matting
ECOSTAKE (TYP
Section View
Live Stakes
1 Geolifts
Not to Scale
(use at least three of species listed)
Scientific Name
8' MAX. WITH WIRE
Comus amomum
Silky Dogwood
Salix sericea
(6' MAX. WITHOUT WIRE)
NOTE:
Ninebark
Sambucus canadensis
MIDDLE AND
VERTICAL WIRES
1.
LIVE STAKES TO BE PLANTED IN AREAS AS
20
Elymus �.iirginicus
Virginia wildrye
SHOWN ON PLANS AND DIRECTED BY THE
Sorghastrum nutans
SHALL BE 121
20
ENGINEER.
TOP AND
BOTTOM
GAGE MIN.
2.
3' MAX SPACING IN DIAMOND PATTERN
STRAN
ALLOW.
3.
LIVE STAKING SHOULD BE COMPLETED
SHALL BE 10�
2.
GRAIN STRAW PREFERED, NCDOT
DURING THE DORMANT SEASON,
GAUGE MIN. \
FF _FILTER FABRI
CONSIDERED UPON REQUEST, AS
GENERALLY DECEMBER TO APRIL.
WIRE J U
FILTER FABRIC
COMPACTED FILL
` I I
I I
EXTEND FABRIC '4 i
NOTES: INTO TRENCH
1. USE WIRE A MINIUM OF 32" IN WIDTH
AND WITH A MINIMUM OF 6 LINES OF
WIRES WITH 12" STAY SPACING.
2. USE FILTER FABRIC A MINIMUM OF 36"
IN WIDTH AND FASTEN ADEQUATELY
TO THE WIRES AS DIRECTED BY THE
ENGINEER.
3. PROVIDE 5' STEEL POST OF THE
SELF -FASTENER ANGLE STEEL TYPE.
ANGLE STEEL TYPE.
n Temporary Silt Fence
Not to Scale
U
EXISTING GROUND
Oa
CL u.r
J
LU =
LU O
N N
LIVE STAKE (TYP)\
BASEFLOW WATER
ELEVATION
TOE OF SLOPE T
Section View
LIVE STAKE (TYPI, TOP OF BANK
A A 2 A A
4
A A A rO36„ A A
A A A A A
A A A A A
A A A A A
6" MIN. OVERLAP IN
DOWNSTREAM DIRECTION
AT MAP ENDS
STAKE (TYP)\ I ITOP OF BANK
A X A A
3MA A A
G A A A A A
SN
C/ A A A A
A A A
TOE OF SLOPE
Plan View
EROSION CONTROL
MATTING (TYP)\ �OF BANK
ECOSTAKE (TYP) �
TOE OF
NOTE:
TOE STAKE (TYP) 1. 700 g/m' Coir Matting
ECOSTAKE (TYP
Section View
Live Stakes
Riparian Seed Mix
(use at least three of species listed)
Scientific Name
Common Name
Comus amomum
Silky Dogwood
Salix sericea
Silky Willow
Physocarpus opulifolius
Ninebark
Sambucus canadensis
Elderberry
Cephalanthus occidentalis
Buttonbush
TOP OF BANK
3
Plan View TOE OF SLOPE
/-4-\ Live
Live Stake Detail
w2
12 0
1/2" TO 2" w m
DIAMETER J t-
M 0
w
Oui
I— 0-
N Q
F -
(!)Erosion Control Mattie
Not to Scale
Riparian Seeding
Not to Scale
Temporary Seeding (Do Not Apply Amendments to Stream Banks)
Riparian Seed Mix
Type Planting Rate Qbsfacre)
Stream Banks, Disturbed Buffer and Upland Areas
Rye Grain 120
Ground Agricultural Limestone 2,000
Seeding Rate: 20lblacre
Straw Mulch 4,000
Species Name
Common Name Percentage
Panicum clandestinum
Deer Tongue
20
Andropogon gerardii
Big Bluestem
20
Elymus �.iirginicus
Virginia wildrye
20
Sorghastrum nutans
Indiangrass
20
Chasmanthium Iatifolium
Riper Oats
10
Juncus eftusus
Soft Rush
10
Riparian Seeding
Not to Scale
Temporary Seeding (Do Not Apply Amendments to Stream Banks)
Date
Type Planting Rate Qbsfacre)
Jan 7 —May 15
Rye Grain 120
Ground Agricultural Limestone 2,000
20-10-10 Fertilizer 750
Straw Mulch 4,000
May 15 —Aug 15
Browntop Millet 40
Ground Agricultural Limestone 2,000
20-10-10 Fertilizer 750
Straw Mulch 4,000
Aug 15 — Dec 30
Rye Grain 120
Ground Agricultural Limestone 2,000
20-10.10 Fertilizer 1,000
Straw Mulch 4,000
� Temporary Seeding and Mulching
Not to bcale
y..25=
T_ o. I
'i
N
—0.6"—
Eco Stake
SEEDING:
1.
SEEDBED WILL BE AMENDED
WITH TOPSOIL APPLICATION.
2.
PH LEVEL OF SOIL SHALL BE 5.5
TO 7
3.
SEEDBED SHALL BE LOOSE AND
FREE OF ROCKS AND DEBRIS
PRIOR TO SEEDING AND
MULCHING
4.
FOR PERMANENT SEEDING, REFEF
TO NOTES ON SHEET 1.1.
TEMPORARY AND PERMANENT
SEED SHOULD BE APPLIED
TOGETHER IF PLANTING DATES
ALLOW.
MULCHING:
1.
2 TONS PER ACRE
2.
GRAIN STRAW PREFERED, NCDOT
ALTERNATIVES WILL BE
CONSIDERED UPON REQUEST, AS
WILL LEAVES
3.
SEEDBED SHALL BE LOOSE AND
FREE OF ROCKS AND DEBRIS
PRIOR TO SEEDING AND
MULCHING
2 I
/—
r
C3
Q

CITY COUNCIL:
BARBARA G. VOLK
Mayor
STEVE CARAKER
Mayor Pro Tem
RON STEPHENS
JERRY A. SMITH, JR.
JEFF MILLER
September 6, 2016
Mr. David Brown
CITY OF HENDERSONVILLE
The City of Four Seasons
US Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801
ENGINEERING DEPARTMENT
Brent G. Detwiler, PE
City Engineer
Re: NWP Application Agent Authorization
Mud Creek Bank Stabilization, City of Hendersonville, NC
Dear Mr. Brown,
OFFICERS:
JOHN F. CONNET
City Manager
SAMUEL H. FRITSCHNER
City Attorney
TAMMIE K. DRAKE
City Clerk
hereby authorize Mr. Andrew Bick, Mr. Jacob Wiseman and Mr. Scott Gregory of Wildlands Engineering,
Inc. to serve as the City's agent and apply on our behalf for a Nationwide Permit for the subject project.
Please feel free to call me at [phone] if you have any questions.
Sincerely,
CITY OF HENDERSONVILLE
Brent G. Detwiler
City Engineer
R:\projects\160001- Mud Creek & N Main St Stream bank Stabilization\engineering\correspondence\US Army Corps of Enginee rs\20160906 -Mud Cr Stabilization US Army Corps
of Eng.docx
305 Williams Street [e-mail] Phone: [phone]
Hendersonville, NC 28792-4461 www.hendersonvillenc.gov Fax: [phone]

WMud Creek Stabilization Project
Wildlands Engineering, Inc.
ft
i _ r
t
4
Photo 1— Bank erosion along left bank in close proximity to newly
Photo 2 — Bank erosion along left bank
looking upstream toward
paved greenway trail (in upper left corner of photo).
N. Main Street bridge.
t f r ♦
�N
Photo 3 — Bank erosion along left bank looking upstream toward
Photo 4 — Bank erosion along left bank
looking upstream toward
N. Main Street bridge.
N. Main Street bridge during winter.
WMud Creek Stabilization Project
Wildlands Engineering, Inc.