20190582 Ver 1_401 Application_20190429

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pow
T.E. ALLEN ENGINEERING, PC
TERRY E. ALLEN, PE, MSE
CONSULTING ENGINEER $ PAIL)
Post Office Box 103
Rosman, North Carolina 28772
Phone [phone] Email: [e-mail] Mobile [phone] Firm # C-1997
April 22, 2019
2o190582
SUBJECT: 401/404 Permitting for Seawall at Dennis Lockhart Residence, 85 & 87
Cardinal Drive, B M L022 (House Lot) and B M L021 (Vacant Lot) Cardinal Drive, Lake
Toxaway, Transylvania County, North Carolina, PIN: 8513-63-0386-000 (House Lot),
PIN 8513-63-2362-000 (Vacant Lot)
NC DWQ, 401/Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Dear DWQ:
Enclosed, please find five (5) copies of the 401/404 application (PCN form). A
check for the application review fee is also enclosed. This PCN to address the
construction of a new seawall at Dennis Lockhart Residence, 85 & 87 Cardinal Drive,
Lake Toxaway, Transylvania County, North Carolina. The new seawall is to be
constructed of precast concrete segmental block with stone veneer, and a riprap tow
apron. The work shall be in accordance with attached Sheets C-1 through C-4. Lake
Toxaway has a water quality classification of B; Tr.
All disturbed areas not to be filled or flooded will be vegetated pursuant to the
seeding schedule in the Erosion and Sediment Control Planning and Design Manual. If
you have any questions or require any additional information, please do not hesitate to
contact me at [phone] or email [e-mail].
Sincerely,
Te . Allen, PE, MSE
Consulting Engineer
Enclosures 5 copies of 401/404 PCN Application Form
Check for application review fee

Copy Furnish w/ attachment:
401 PERMITTING
Kevin Mitchell
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, NC 28711
828-296-4500
NC FISH & WILDLIFE PERMITTING
Andrea Leslie
Mountain Habitat Conservation Coordinator
NC Wildlife Resources Commission
645 Fish Hatchery Rd., Bldg B
Marion, NC 28752
828-400-4223
[e-mail]
USACE 404 PERMITTING
Mr. David Brown, PG
Asheville Regulatory Field Office
US Army Corps of Engineers
151 Patton Ave, Room 208
Asheville, NC 28801-5006

o�oF w a rF9pc
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Page 1 of 12
PCN Form — Version 1.3 December 10, 2008 Version
Pre -Construction Notification PCN Form
A. Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 13 - New Seawall or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
® Yes
❑ No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
® 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 ❑ No
For the record only for Corps Permit:
❑ Yes ❑ 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
® No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes
® No
1h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes
® No
2.
Project Information
2a.
Name of project:
NEW SEAWALL at DENNIS LOCKHART RESIDENCE
2b.
County:
Transylvania
2c.
Nearest municipality / town:
Brevard
2d.
Subdivision name:
Lake Toxaway
2e.
NCDOT only, T.I.P. or state
project no:
3.
Owner Information
3a.
Name(s) on Recorded Deed:
DENNIS LOCKHART
3b.
Deed Book and Page No.
PIN 8513630386000; Date: 07/2016 Book: 00769 Page: 0759
PIN 8513632362000; Date: 07/2016 Book: 00769 Page: 0759
3c.
Responsible Party (for LLC if
applicable):
3d.
Street address:
85 & 87 Cardinal Drive
3e.
City, state, zip:
Lake Toxaway, NC 28747
3f.
Telephone no.:
202-641-0651
3g.
Fax no.:
3h.
Email address:
Page 1 of 12
PCN Form — Version 1.3 December 10, 2008 Version

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent ❑ Other, specify:
4b.
Name:
4c.
Business name
(if applicable):
4d.
Street address:
4e.
City, state, zip:
4f.
Telephone no.:
4g.
Fax no.:
4h.
Email address:
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Terry Allen, PE
5b.
Business name
(if applicable):
T.E. ALLEN ENGINEERING, PC
5c.
Street address:
P.O. Box 103
5d.
City, state, zip:
Rosman, NC 28772
5e.
Telephone no.:
828-877-4883
5f.
Fax no.:
5g.
Email address:
[e-mail]
Page 2 of 12
PCN Form — Version 1.3 December 10, 2008 Version

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
PIN: 8513-63-0386-000 (House Lot),
PIN 8513-63-2362-000 (Vacant Lot)
1 b. Site coordinates (in decimal degrees):
Latitude: 35.150666 Longitude: - 82.96157
(DD.DDDDDD) (-DD.DDDDDD)
1c.
Property size:
1.00 LT (from Transylvania County GIS) acres
2.
Surface Waters
2a.
Name of nearest body of water (stream, river, etc.) to
Lake Toxaway
proposed project:
2b.
Water Quality Classification of nearest receiving water:
B, Trout
2c.
River basin:
Savannah
Page 3 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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:
This home site located in Toxaway Estates, a private residential development in western Transylvania County, NC. The
lot borders Lake Toxaway which has a classification of B: Trout. The general land use is residential.
3b.
List the total estimated acreage of all existing wetlands on the property:
none
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
none
3d.
Explain the purpose of the proposed project:
This Project is to install 438 LF of new seawall along unprotected shoreline, and to remove & replace the existing boat
dock at a new location. Boat dock to be designed by others, with wood pile foundation (no concrete footers). All seawall
work to be in accordance with the engineered plans. Seawall to be precast concrete segmental block with stone veneer.
The seawall work will be performed "IN THE DRY" using a coffer dam to create a dry work area.
Minimual disturbance within existing Vegetated Trout Buffer.
See attached drawings.
3e.
Describe the overall project in detail, including the type of equipment to be used:
SEE ATTACHED SHEETS C-1, C-2, C-3 and C-4.
SEAWALL. Construction of the seawall shall be performed "IN THE DRY" using a coffer dam to create a dry work area.
To comply with Water Quality requirements, the will be performed in the dry. Where a coffer dam is used, the work area
will be dewatered by pumping. All dewatering discharge shall have a turbidity of not more than 10 NTUs above
background or as otherwise specified in DWQ's Turbidity Standards (15A NCAC 02B.0211(3.)(k.)). To satisfy the
required turbidity limit, the dewatering pump discharge shall be filtered through a Bag Filtration Unit equal to Model BF -
400 from Rain -for -Rent with a 100 to 1 micron nominal rating (P.O.C. at Rain -for -Rent is Jeremy at 704-393-3345). The
turbidity level of all discharge shall be monitored with calibrated turbidity meters and the filtration equipment shall be
adjusted as necessary to insure compliance with Water Quality Standards. The water around the dredging areas shall
likewise be monitored with calibrated turbidity meters and the turbidity curtains shall be adjusted as necessary to insure
compliance with Water Quality Standards.
TURBIDITY CURTAINS. In addition to the Coffer Dam, a minimum of two (2) rows of Turbidity Curtains shall be installed
and maintained around the work area.
Uncured concrete shall not be allowed to come into direct contact with surface waters. This will be accomplished by
establishing a "dry work area" as described above. "High Early" cementious material shall be in the stone work to
minimize curing time.
Water Quality around the work areas shall be monitored with calibrated turbidity meters. The coffer dams and turbidity
curtains shall be adjusted as necessary to insure compliance with Water Quality Standards. Furnish and install multiple
layers of turbidity curtains as necessary to insure regulatory compliance.
Minimal disturbance within existing Vegetated Trout Buffer.
Water Quality around the work areas shall be monitored with calibrated turbidity meters. The coffer dams and turbidity
curtains shall be adjusted as necessary to insure compliance with Water Quality Standards.
Page 4 of 12
PCN Form — Version 1.3 December 10, 2008 Version

4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
Comments:
F1 Yes ®No El Unknown
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
Preliminary El 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?
❑ Yes ® No ❑ Unknown
5b.
If yes, explain in detail according to "help file" instructions.
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ® No
6b.
If yes, explain.
Page 5 of 12
PCN Form — Version 1.3 December 10, 2008 Version

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑ 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.
2b.
2c.
2d.
2e.
2f.
Wetland impact
Type of jurisdiction
number —
Type of impact
Type of wetland
Forested
(Corps - 404, 10
Area of impact
Permanent (P) or
(if known)
DWQ — non -404, other)
(acres)
Temporary T
W1 ❑ P ❑ T
❑ Yes
❑ No
❑ Corps
❑ DWQ
❑ Yes
❑ Corps
W2 ❑ P ❑ T
❑ No
❑ DWQ
❑ Yes
❑ Corps
W3 ❑ P ❑ T
❑ No
❑ DWQ
❑ Yes
❑ Corps
W4 ❑ P ❑ T
❑ No
❑ DWQ
❑ Yes
❑ Corps
W5 ❑ P ❑ T
❑ No
❑ DWQ
❑ Yes
❑ Corps
W6 ❑ P ❑ T
❑ No
❑ DWQ
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.
3b.
3c.
3d.
3e.
3f.
3g.
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number -
(PER) or
(Corps - 404, 10
stream
length
Permanent (P) or
intermittent
DWQ — non -404,
width
(linear
Temporary (T)
(INT)?
other)
(feet)
feet)
❑ PER
❑ Corps
S1 ❑ P ❑ T
❑ INT
❑ DWQ
❑ PER
❑ Corps
S2 ❑ P ❑ T
❑ INT
❑ DWQ
❑ PER
❑ Corps
S3 ❑ P ❑ T
❑ INT
❑ DWQ
❑ PER
❑ Corps
S4 ❑ P ❑ T
❑ INT
❑ DWQ
❑ PER
❑ Corps
S5 ❑ P ❑ T
❑ INT
❑DWQ
❑ PER
❑ Corps
S6 ❑ P ❑ T
❑ INT
❑ DWQ
3h. Total stream and tributary impacts
3i. Comments:
Page 6 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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.
4b.
4c.
4d.
4e.
Open water
Name of waterbody
impact number —
(if applicable)
Type of impact
Waterbody type
Area of impact (acres)
Permanent (P) or
Temporary T
Temporary Coffer Dam for
01 []POT
Lake Toxaway
Seawall construction
Lake
0.01 Acres
(1 Ft x 438 Ft)
02 ®P ❑ T
Lake Toxaway
New Seawall
(6 Ft x 438 Ft)
Lake
0.06 Acres
03 ❑P❑T
04 ❑P❑T
4f. Total open water impacts
0.07 Acres
4g. Comments: The work will be performed while the lake is at normal pool elevation.
1.0 NEW SEAWALL. New presast concrete block with stone veneer.
2.0 Work will be accomplished "in the dry" by installing a temporary coffer dam around the proposed work area. The
dewatering discharge will be filtered to DWQ Water Quality Standards prior to release. Two (2) rows of Turbidity Curtains will
also be used.
SEE ATTACHED SITE PLAN IN SHEET C-3.
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
5b.
5c.
5d.
5e.
Wetland Impacts (acres)
Stream Impacts (feet)
Upland
Pond ID
Proposed use or purpose
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
number
of pond
P1
P2
5E 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:
Page 7 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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 you MUST fill out Section D of this form.
6a.
❑ Neuse ❑Tar -Pamlico El Other:
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number—
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P) or
for
Stream name
mitigation
(square feet)
(square feet)
Temporary T
impact
required.
B1 ❑P❑T
El Yes
❑ No
B2 ❑P❑T
EI Yes
❑ No
B3 ❑P❑T
El Yes
❑ No
6h. Total buffer impacts
6i. Comments:
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 work will be performed while the lake is at normal pool elevation.
1.0 Work will be accomplished "in the dry" by installing a temporary Coffer Dam around the proposed work area. The
dewatering discharge will be filtered to DWQ Water Quality Standards prior to release.
2.0 Turbidity Curtains will also be used to isolate the work area from Lake waters. Turbidity curtains to remain in place until
work is complete and the turbidity in the work area is less than 10 NTUs above background. Turbidity curtains shall be used
outboard of the coffer dam to isolate the work area. Turbidity curtains to remain in place until work is complete and the
turbidity in the work area is less than 10 NTUs above background.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
To minimize disturbance during construction, the work will be accomplished with the smallest mechanical equipment
practicable.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
❑ Yes ® No
impacts to Waters of the U.S. or Waters of the State?
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
❑ Mitigation bank
2c. If yes, which mitigation option will be used for this
El Payment to in -lieu fee program
project?
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type
Quantity
Page 8 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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:
❑ warm ❑ cool ❑cold
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:
S. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
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 ❑ 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: Should project exceed 10% or 100' in 1000', a trout buffer waiver will be sought from NCDENR - Div of Land
Resources
Page 9 of 12
PCN Form — Version 1.3 December 10, 2008 Version

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1a.
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ® 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
Comments:
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
%
2b.
Does this project require a Stormwater Management Plan?
❑ Yes ® No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
❑ Certified Local Government
2e.
Who will be responsible for the review of the Stormwater Management Plan?
❑ DWQ Stormwater Program
❑ DWQ 401 Unit
3.
Certified Local Government Stormwater Review
3a.
In which local government's jurisdiction is this project?
❑ Phase II
3b.
Which of the following locally -implemented stormwater management programs
❑ NSW
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
4.
DWQ Stormwater Program Review
❑ Coastal counties
❑ HOW
4a.
Which of the following state -implemented stormwater management programs apply
❑ ORW
(check all that apply):
❑ Session Law 2006-246
❑ Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ 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 10 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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
❑ 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
❑ 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
® No
or Riparian Buffer Rules (15A NCAC 26 .0200)?
2b.
Is this an after -the -fact permit application?
❑ Yes
® 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
® 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.
N.A.
Page 11 of 12
PCN Form — Version 1.3 December 10, 2008 Version

i 5. Endangered Species and Designated Critical habitat (Corps Requirement)
... ....... ......... .... _... .... ............ _....... .......... .......... _.................. ................ _.._..... _.... ......... .. - —
` 5a, Will this project occur in or Haar an area with federally protected species or ❑
Yes No
habitat?
5b. Have you checled with the USFWS concerning Endangered Species Act
� ❑ yes ® No
impacts?
❑ Rateigh
5c. It yes. indicate the USFWS Field Ofte you have contacted.
j ❑ Ashaville
j 5d. What data sources did you use to determ�ne whether your site would impact Endangered Species or Dos grated Critical
Habitat?
i
&. Essential Fish Habitat (Corps Requirement) i
5a. Will dfis project occur in or near an area designated as ess rejal fth habitat? © yes ( No
5b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Requirement)
1 7. Historic or Prehistoric Cultural Resources (Corps
._.. ....... ._.._........... _..___...____ __ y
�� 7s project occur in or near an area that the state, federal or tribal ❑
governments have designated as having historic or cultural preservation a
I status {e g., National Hisrtoft Trust designation or properties significant in i ' yes No
North Carolina history and archaeology)?
..... __........__........_....._..........._....... ..._._____.�
_._._._......_...._....._........................_........._...__.._._._
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
.v......_.......... _.......... _..
3
S. Flood Zone Designation (Corps Requirement)
Be. Will this project occur to a FEMA -designated 104 -year floodplain? ❑ Yas ❑ No
__._._.__..__....... ..__
_._.__...._................................. _.... ____
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination?
DENNIS LOCKII.AR7'11
I ApplcantiAgenrs Printed Name —Ccanl/Ag.n Gate
1 aJ. geM'e sigmtum iw vfAd rx3ty Awn auOxXrratiM Mer tran the 800C*irtt
..._.... ,._..,,,,,._.._.,...___,............._,..._,,,,_,__................ woD ided.S _._.
Page 1 I of 12
PCN Form - Version 1,9 December 10. 2008 Version

85 & 87 Cardinal Drive, Lake Toxaway, NC
1.0 This Project is to install 438 LF of new seawall along
unprotected shoreline, and to remove & replace the existing
boat dock at a new location. Boat dock to be designed by
others, with wood pile foundation (no concrete footers).
Comply with the latest edition of the Lake Toxaway
Community Association Architectural Review Standards.
2.0 CONDITIONS FOR USE OF THIS PLAN. These conditions
apply to all sheets and all engineering provided herein. By
accepting this Plan, you and any others to whom it is
distributed, agree to the following conditions;
2.1 As a result of this design, a number of observations
have been made and recommendations provided, including
plan(s), details and specifications. It should be noted that
the plan(s), detail and specifications provided herein are
based on information provided as of this writing. It is
conceivable that additional information may be forthcoming
which bears on these details and specifications. The right
is reserved, therefore, to review and modify all observations,
conclusions, details and specifications at any future point in
time should, in fact, additional information become available
2.2 Limitation of Liability. All other work that may be
required, but not shown herein, shall be designed by the
Contractor. By accepting this engineering document, the
Owner, Contractor and any others to whom it is distributed,
agree to a strict limitation of liability for TERRY E. ALLEN
ENGINEER, Terry E. Allen PE, T.E. ALLEN ENGINEERING, P.C.,
and its employees to an amount not to exceed $25,000.00
or one—half the total amount of paid invoices, whichever is
less.
2.3 Indemnification. The Owner and the Contractor shall
indemnify and hold harmless T.E. Allen Engineering, PC
(hereinafter the `Engineer), and its officers, agents,
employees and assigns, to the fullest extent permitted by
law, for any loss, cost expenses or damages incurred by the
Engineer as a result of the Owner's and/or Contractor's
breach of this Agreement or for any act or omission caused
solely by the negligence of the Owner and/or Contractor, its
employees and its other consultants and subcontractors.
This requirement to indemnify and hold harmless shall
include compensation for the Engineer's reasonable
attorney's fees.
3.0 All work shall be in accordance with North Carolina State
Residential Building Code, OSHA Safety and Health
Requirements, US Army Corps of Engineers 404 permit
requirements, NCDEQ Division of Water Quality 401 permit
requirements, NC Sedimentation Pollution Control Act, Lake
Toxaway Community Assoc requirements, and all other
applicable codes, ordinances, and regulations. The Contractor
shall coordinate all work with the Lake Toxaway Operations
Manager, 16801 Rosman Hwy, Lake Toxaway, NC 28747.
4.0 TURBIDITY CONTROL. The Contractor shall not violate
water quality stream standards during the performance of this
work. The Turbidity Level in the lake waters shall not exceed
10 NTUs above background levels at any time during
performance of this work pursuant to 15A NCAC 02B.0211
(3)(k). The Contractor shall employ any and all methods
necessary to prevent a violation of the Turbidity Standards.
As a minimum, the following turbidity control measures shall
be employed. These methods shall be modified and improved
as necessary to prevent violation of water quality standards;
4.1 To ensure compliance with Water Quality requirements,
the work shall be performed "IN THE DRY" using a coffer dam
to create a dry work area. In addition to the coffer dam, a
minimum of two (2) turbidity curtains shall be used around
the outside (wet side) of the coffer dam. The work area
isolated by the coffer dam may be dewatered by pumping.
All dewatering discharge shall have a turbidity of not more
than 10 NTUs above background or as otherwise specified in
DWQ's Turbidity Standards (15A NCAC 02B.0211(3.)(k.)). To
satisfy the required turbidity limit, the dewatering pump
discharge shall be filtered through a Bag Filtration Unit equal
to Model BF -400 from Rain—for—Rent with a 100 to 1 micron
nominal rating (P.O.C. at Rain—for—Rent is Jeremy at
704-393-3345). The dewatering flow from the flirtation bag
shall be discharged in front of (on the work side of) the two
(2) turbidity curtains for additional filtration. The turbidity
level of all discharge shall be monitored with calibrated
turbidity meters and the filtration equipment shall be adjusted
as necessary to insure compliance with Water Quality
Standards. The water around the work areas shall likewise be
monitored with calibrated turbidity meters and the turbidity
curtains shall be adjusted as necessary to insure compliance
with Water Quality Standards.
© Copyright 2019 T.E. ALLEN ENGINEERING PC. All Rights Reserved Worldwide.
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GENERAL NOTES AND SPECIFICATIONS.
1.0 All work shall be in accordance with the latest edition of
the North Carolina Building Code, ACI 301 — Specifications for
Structural Concrete for Buildings, ACI 318 & 318R — Building
Code Requirements for Structural Concrete, ACI 548AR Guide
for Use of Polymers in Concrete, ACI 546R Concrete Repair
Guide, AISC Steel Construction Manual, OSHA Safety and
Health requirements, and all other applicable codes,
ordinances, and regulations. Contractor shall obtain all
required permits prior to beginning work
2.0 The existing property lines and the Side Yard Setback
shall be located, marked and flagged by a Professional Land
Surveyor prior to beginning work. Verify actual setback
requirement with the most current Lake Toxaway Community
Association Architectural Review Standards.
3.0 Contractor shall verify and establish all Finish Floor
Elevations (FFE) prior to beginning work. Do not locate any
part of the structure within any set—back, easement,
right—of—way, floodway or flood fringe, NCDEQ regulated
set—back, trout stream buffer zone (or other buffer zone or
set back). Contractor shall obtain all required permits prior to
beginning work. Contractor shall locate all property
boundaries prior to beginning work. Contractor shall locate,
flag and protect all underground utilities prior to beginning
work.
4.0 Design criteria and assumptions:
Design Method = ASCE-7, Minimum Design Loads for Buildings
and other Structures
Soil Bearing Capacity = 2000 psf, assumed
Floor Live Load = 40 psf
Floor Dead Load = 15 psf
5.0 FOOTINGS. The bottom of footings shall be located
below the frost line. Footings shall be stepped where it is
necessary to change the elevation of the top surface of the
footings or where the slope of the bottom surface of the
footings will exceed 0.1 unit vertical in ten units horizontal
(1 % slope). All individual pier footings shall be restrained
from sliding with anti—slide keys, helical piers, etc).
6.0 CONCRETE. Concrete shall have a minimum compressive
strength of 4000 psi at 28 days and shall have 5 to 7%
entrained air. DO NOT ALLOW FRESH CONCRETE TO CONTACT
LAKE WATERS.
7.0 REINFORCING STEEL. All reinforcing steel and anchor
dowels shall conform to ASTM A 615, Grade 60 and shall
have standard deformations. All footer reinforcing bars shall
have a minimum of 3" of concrete cover. All rebar lap
splices shall be 60 bar diameters unless otherwise noted. All
footer steel shall be bonded and grounded per the NEC.
8.0 TROUT BUFFER REQUIREMENTS. Where the "on shore"
work is within 25—ft of the top—of—bank, and exceeds 10% of
the shoreline frontage, the Contractor shall obtain a Trout
Buffer Variance from the NCDEQ—DLR Asheville Regional Office
(P.O.C. Stan Akin, 828-296-4500).
15A NCAC 04B .0125 BUFFER ZONE REQUIREMENTS.
(a) Unless otherwise provided, the width of a buffer zone is
measured from the edge of the water to the nearest edge of
the disturbed area, with the 25 percent of the strip nearer
the land—disturbing activity containing natural or artificial
means of confining visible siltation.
(b) The 25 foot minimum width for an undisturbed buffer
zone adjacent to designated trout waters shall be measured
horizontally from the top of the bank.
(c) Where a temporary and minimal disturbance is permitted
as an exception by G.S. 113A-57(1), land—disturbing activities
in the buffer zone adjacent to designated trout waters shall
be limited to a maximum of ten percent of the total length
of the buffer zone within the tract to be distributed such
that there is not more than 100 linear feet of disturbance in
each 1000 linear feet of buffer zone. Larger areas may be
disturbed with the written approval of the Director.
(d) No land—disturbing activity shall be undertaken within a
buffer zone adjacent to designated trout waters that will
cause adverse temperature fluctuations, as set forth in 15A
NCAC 2B .0211 "Fresh Surface Water Classification and
Standards", in these waters.
J Copyright 2019 T.E.
ALLEN ENGINEERING PC.
All Rights Reserved
Worldwide.
PRELIMINARY — NOT
FOR CONSTRUCTION
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1 04-12-2019 1
C-2
SHEET 2 OF 4

rurnisn ana new z:)eaw
along the existing
unprotected shoreline,
438 LF (+/—).
Remove & dispose of
existing Dock.
Furnish & install new
Dock with PT wood pil
foundation, no concre
footers.
The Survey Data shown on this Site Plan was provided by
Smokey Mountain Land Surveying PA, Ben West Professional
Land Surveyor. This Site Plan is intended for Environmental
Permitting only, and should not be considered an official Land
Survey. Do no rely on any survey data, boundary and
9�oti topographic information shown on this Site Plan. See official
9� Land Survey for all survey data.
F LOTS 21 & 22, BLOCK M, LAKE TOXAWAY COMPANY
Cake Cardinal SAT IN
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Cake Cardinal U Copyright 2019 T.E.
ALLEN ENGINEERING PC.
shoreline All Rights Reserved
Worldwide.
Furnish and new Seawall
along the existing
unprotected shoreline,
438 LF (+/—).
PRELIMINARY — NOT
FOR CONSTRUCTION
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0/-12-2019
C-3
SHEET 3 OF 4

Adjust height of seawall as —
necessary to maintain 18"
freeboard above normal pool
elevation
Normal Pool Elev. (3010 +/-)
Adjust height of seawall to
accommodate actual
topographic conditions.
Lake
Natural Stone Veneer (Optional),
specified by Others—\
-I Ill i lllli ll l
RIPRAP Toe Apron to provide '
compensatory habitat. NCDOT
Class 2 Riprap.
Stone Footer to be #57 clean stone
from LBM Industries
Existing Undisturbed Residuum with
minimum bearing capacity of 2000 PSF.
Do not bear retaining wall on
unsatisfactory of unstable material.
NOTES
SEAWALL TO BE CONSTRUCTED WITH
PRECAST CONCRETE TOXAWAY BLOCK
#8 epoxy coated vertical dowel bar
continuous through all segmental blocks
COURSE below. All cells to grouted solid w/ 4000
4-�� psi hydraulic cementious grout suitable
for underwater application.
r Non -woven needle punched geotextile
COURSE ? fabric between stone fill and earth
3,
subgrade
COURSE �1� , 1 -FT Thick Chimney Drain behind wall.
2 Drainage Stone to be #467 clean stone
from LBM Industries
COURSE
-" Wrap stone aggregate footer with Mirafi
50OX geotextile fabric or equal.
1. This Detail in only applicable to the seawall
along the shoreline. Field verify all dimensions and
material quantities prior to ordering materials or
beginning work. Contractor's verification shall
include, but not be limited to; shoreline bank
height, depth -of -water at shoreline, subgrade
bearing capacity, length of seawall, block quantities,
etc.
2. See Sheets C-1, C-2, and C-3 for additional
requirements.
3. Furnish and install Buttresses for lateral
stability, at intervals not exceeding 12 -ft on
center, where the height of unbalanced fill behind
seawall exceeds 4'-6".
PRELIMINARY - NOT
FOR CONSTRUCTION
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material having a minimum bearing
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capacity of 2000 PSF.
-4211-
S
1 SEAWALL FOUNDATION DETAIL
C Copyright 2019 T.E.
C-4 WT M SCALE
J
ALLEN ENGINEERING PC.
t
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Q
All Rights Reserved
o
E
Worldwide.
1. This Detail in only applicable to the seawall
along the shoreline. Field verify all dimensions and
material quantities prior to ordering materials or
beginning work. Contractor's verification shall
include, but not be limited to; shoreline bank
height, depth -of -water at shoreline, subgrade
bearing capacity, length of seawall, block quantities,
etc.
2. See Sheets C-1, C-2, and C-3 for additional
requirements.
3. Furnish and install Buttresses for lateral
stability, at intervals not exceeding 12 -ft on
center, where the height of unbalanced fill behind
seawall exceeds 4'-6".
PRELIMINARY - NOT
FOR CONSTRUCTION
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04-12-2010
C-4
SHEET 4 OF 4