20191100 Ver 1_401 Application_20190816

Ir ,
T.E. ALLEN ENGINEERING, PC
TERRY E. ALLEN, PE, MSE , 0 1
CONSUILTIING ost Office ENG INEER 9 1 1 0 0
Rosman, North Carolina 28772
Phone [phone] Email: [e-mail] Mobile [phone] Firm # C-1997
August 12, 2019
SUBJECT: 401/404 Permitting for New Boathouse at Ralph F Jr & Jean C Williams
Residence, 1509 Cold Mountain Rd., Lake Toxaway, Transylvania County. North,
Carolina 28747, PIN 8523-01-2013-000
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 16'x30' Boathouse Foundation at the Williams Residence, 1509
Cold Mountain Rd, Lake Toxaway, Transylvania County, North Carolina. A portion of
the existing dock and seawall (bulkhead) will be removed to accommodate the new
Boathouse Foundation. The work shall be in accordance with attached Sheets C-1
through C-6. 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,
Terry .Allen, PE, MSE
Consulting Engineer
copies of 401/404 PCN
Enclosures 5 p Application Form
Check for application review fee

!'r
!'
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 req°c
O 'c
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Page 1 of 13
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: 3 - Existing Seawall & 18 - New Boathouse 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
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes
® No
2.
Project Information
2a.
Name of project:
NEW BOATHOUSE at WILLIAMS 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:
Ralph F Williams Jr & Jean C Williams
3b.
Deed Book and Page No.
Date: 05/2016 Book: 00764 Page: 0154
Plat Book: F16 Page: 734
3c.
Responsible Party (for LLC if
applicable):
3d.
Street address:
1509 Cold Mountain Road (B E L21 North Shore Dr .62)
3e.
City, state, zip:
Lake Toxaway, NC 28747
3f.
Telephone no.:
828-320-7418 (Woody Williams)
3g.
Fax no.:
3h.
Email address:
Page 1 of 13
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:
S.
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 13
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):
8523-01-2013-000
1 b.
Site coordinates (in decimal degrees):
Latitude: 35.14455 Longitude: - 82.947408
(DD.DDDDDD) (-DD.DDDDDD)
1c.
Property size:
1.58 (from Transylvania County GIS) acres
2.
Surface Waters
2a.
Name of nearest body of water (stream, river, etc.) to
proposed project:
Lake Toxaway
2b.
Water Quality Classification of nearest receiving water:
B, Trout
2c.
River basin:
Savannah
Page 3 of 13
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. There is an existing
seawall (Bulkhead) along the shoreline. A portion of the existing seawall will be removed as necessary to install the new
boathouse foundation.
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:
Construct new 14'x30' Boathouse Foundation meeting side yard setback rules. Remove existing seawall and dock as
necessary to install new Boathouse Foundation. New work to be in accordance with Sheets C1 through C6.
The boathouse foundation work will be performed "IN THE DRY" using a coffer dam to create a dry work area.
No disturbance within existing Vegetated Trout Buffer.
See attached Sheet C3 for location of work.
Page 4 of 13
PCN Form — Version 1.3 December 10, 2008 Version

3e.
Describe the overall project in detail, including the type of equipment to be used:
New Boathouse Foundation (74 LF impact).
BOATHOUSE FOUNDATION. The Boathouse Foundation work shall be performed "IN THE DRY" using a coffer dam to
create a dry work area. Three (3) rows of Turbitidy Curtains shall be used in addition to the Coffer Dam. To comply with
Water Quality requirements, the work 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.
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.
Permanent Fill (i.e., Boathouse Foundation) shall not exceed 25 cubic yards meeting the following requirements;
(a) The quantity of discharged material and the volume of area excavated do not exceed 25 cubic yards below the plane
of the ordinary high water mark or the high tide line;
(b) The discharge will not cause the loss of more than 1/10 -acre of waters of the United States; and
(c) The discharge is not placed for the purpose of a stream diversion.
No disturbance within existing Vegetated Trout Buffer. Provide Turbidity Curtains around work area to maintian water
quality.
See attached Sheet C3 for location of work.
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.
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
Yes No F1 Unknown
project (including all prior phases) in the past?
Comments:
4b.
If the Corps made the jurisdictional determination, what type
❑ Preliminary ❑ Final
of determination was made?
4c.
If yes, who delineated the jurisdictional areas?
Agency/Consultant Company:
Name (if known):
Other:
4d.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
Page 5 of 13
PCN Form — Version 1.3 December 10, 2008 Version

S.
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.
TROUT BUFFER. All disturbance within the Trout Buffer shall be restored in accordance with the NCDEQ-DLR Trout
Buffer and Riparian Area planting requirements.
Page 6 of 13
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
❑ Yes
❑ Corps
W1 ❑ P ❑ T
❑ No
❑ 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
feet)
Temporary (T)
(INT)?
other)
(feet)
❑ PER
❑ Corps
S1 []PMT
❑ 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 7 of 13
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 ❑ P ®T
Lake Toxaway
Boathouse Foundation 75 Linear
Lake
0.04 Acres
Ft (+/-)
02 ❑ P ®T
Lake ToxawayTemporary
Turbidity Curtain to
Repair Seawall, 75 Linear Ft
Lake
0.04 Acres
Permanent Boathouse
03 ®P ❑ T
Lake Toxaway
Foundation (74 Linear Ft x 3 Ft
Lake
0.02 Acres
horizontal projection)
04 ❑P❑T
4f. Total open water impacts
0.10 Acres
4g. Comments: The work will be performed while the lake is at normal pool elevation.
1.0 NEW BOATHOUSE FOUNDATION new presast concrete block foundation to support new boathouse structure.
2.0 Boathouse foundation work will be accomplished "in the dry" by installing a temporary Coffer Dam around the proposed
work area. Three (3) rows of Turbidity Curtains shall be installed in addition to the Coffer Dam. The dewatering discharge will
be filtered to DWQ Water Quality Standards prior to release. Turbidity Curtains to remain in place until work is complete and
the turbidity in the work area is less than 10 NTUs above background.
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
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:
Page 8 of 13
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 E] Tar -Pamlico ❑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
❑ Yes
❑ No
B3 ❑P❑T
El Yes
❑ No
6h. Total buffer impacts
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. 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 Boathouse foundation 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 Boathouse foundation work will be accomplished "in the dry" by installing a temporary Coffer Dam around the proposed
work area. Three (3) rows of Turbidity Curtains shall be installed in addition to the Coffer Dam. The dewatering discharge will
be filtered to DWQ Water Quality Standards prior to release. Turbidity Curtains to remain in place untll 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 9 of 13
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:
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.
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 10 of 13
PCN Form —Version 1.3 December 10, 2008 Version

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 ® 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
❑ HQW
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
El Yes El 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 11 of 13
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
F1 Yes
E] 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 2B .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 12 of 13
PCN Form — Version 1.3 December 10, 2008 Version

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 (e.g.,
Yes No
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?
B. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year
Yes No
floodplain?
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make thefloodp in etermination? r—
Ralph F Williams Jr.
!f7 1
Applicant/Agent's Printed Name
Al
pli n Ag 's a4t4
ate
(Agen s signature is v id onlyrf an autholetter fro
provided
l
Page 1 of 13
PCN Form -Version 1.3 December 10, 2008 Version

1509 Cold Mountain Rd, Lake Toxaway, NC
1.0 This Project is to install a new Boathouse Foundation.
A portion of the existing seawall (bulkhead) and Dock will be
remove as necessary to install the new Boathouse Foundation
The Architectural and Structural features of the new
Boathouse above the top—of—foundation shall be designed by
others. 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. r,
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 0213.0211
(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 three (3) 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.
PRELIMINARY — NOT
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C-1
SHEET I OF 6

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.
PROPERTY OWNER OF RECORD:
Ralph F Jr & Jean C Williams
4331 4st Street Circle NW
Hickory, NC 29601
828-320-7418
sofawoody%mail.com
© Copyright 2019 T.E.
ALLEN ENGINEERING PC
All Rights Reserved
Worldwide.
PRELIMINARY — NOT
FOR CONSTRUCTION
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SHEEN 20FG

DO NOT SCALE DRAWINGS
Lat 35.14455
Lon -82.94740
NOTES
1.0 All Trout Buffer disturbance shall be
repaired in accordance with the NCDEQ—DLR
Trout Buffer and Riparian Area planting
equirements.
Foundation Wall.
1 BOATHOUSE SITE PLAN
C—U Not to Scale
!.0 The new Boathouse Foundation shall
nest all LTCA and State On—Site Wastewater
ietback requirements.
5.0 Limitation of Liability. By accepting
his engineering document, the Owner,
;ontractor and any others to whom it is
listributed, agree to a strict limitation of
iobility for TERRY E. ALLEN ENGINEER, Terry
:. Allen PE, T.E. ALLEN ENGINEERING, P.C.,
tnd its employees to an amount not to
>,xceed ;25,000.00 or one—half the total
lmount of paid invoices, whichever is less.
LAKE TOXAWAY
V
Normal Pool Elev.
(3010 +/-)
Existing Dock to remain
- Modify Existing Dock to
accommodate New
Boathouse Foundation
LAKE TOXAWAY
V
Boathouse
Foundation. 12—Ft
clear inside width.
Remove existing
seawall (bulkhead)
as necessary to
install new
Boathouse FND.
© Copyright 2019 T.E.
ALLEN ENGINEERING PC.
All Rights Reserved
Worldwide.
PRELIMINARY — NOT
FOR CONSTRUCTION
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SHELT 3 OF 6

"Toxaway Block"
Concrete Segmental
Block Foundation
Wall. See Detail
on Sheet C-6.
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"Toxoway Block"
Concrete Segmental
Block Foundation
Wall. See Detail
on Sheet C-6.
U) O
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TOXAWAY BLOCK, precast concrete
segmental block, 24"W x 18"H x L
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vertical dowel bar w/ 16" top hook,
continuous through all segmental
blocks cells. All cells in segmental
blocks to be grouted solid w/ 4000
psi hydraulic cementious grout
suitable for underwater application.
See Detail on Sheet C-6.
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BOATHOUSE FOUNDATION — EVEN NUMBERED COURSES
Not to Scale
Limitation of Liability.
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 pak
invoices, whichever is
less.
© Copyright 2019 T.E.
ALLEN ENGINEERING PC.
All Rights Reserved
Worldwide.
PRELIMINARY — NOT
FOR CONSTRUCTION
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C-5
SHEET 5 OF 6

Furnish and install #8 epoxy coated vertical
dowel bar w/ 16" top hook, continuous
through all segmental blocks cells. All cells
in segmental blocks to be grouted solid w/
4000 psi hydraulic cementious grout
suitable for underwater application.
Reinforced Concrete Grade Beam
all around, (1811x2411xCont.). See
Grade Beam Reinforcing Schedule. 17 2
.........................
I
Backfill w/ #57 clean .
washed stone.
OD�x 51
Provide non–woven needle
punched geotextile fabric
between stone and earth.
�1
All structure above the
Toxaway Block
Foundation to be
designed by others. See
Architectural Plans and
Structural Plans designed
by others.
Furnish and install #8 epoxy coated vertical
dowel bar w/ 16" top hook, continuous
through all segmental blocks cells. All cells
in segmental blocks to be grouted solid w/
4000 psi hydraulic cementious grout
suitable for underwater application.
Reinforced Concrete Grade Beam
2'
12'-0"
I Clear Inside ► ,
18 Min Imo– 6'-0"
18" Min. Increase depth
as required to insure
foundation bears on Cover subgrade and
satisfactory insitu material wrap footer stone
having a minimum with Mirafi 50OX
bearing capacity of 2000 geotextile fabric
PSF Minimum bridging
depth 10–FT.
REINFORCED CONCRETE GRADE BEAM
(18"x24"xCont.) REINFORCING SCHEDULE
4 #5 Bottom Longitudinal Bars
continuous, enclosed w/ #3 Stirrups
6" O.C.
2 #5 Top Longitudinal Bars continuous,
enclosed w/ #3 Stirrups ® 6" O.C.
#3 Stirrups at 6" on center. Stirrups
to have 3" concrete cover all around.
– Water Level
"Toxaway-
Block"
Concrete
Segmental
Block
Foundation
Wall.
M
1- 6'-0"
all around, (18 x24 xCom.). See
Grade Beam Reinforcing Schedule.
A
-_ Backfill w/ #57 clean
washed stone.
Cover subgrade and
wrap footer stone
with Mirafi 50OX
geotextile fabric
1 BOATHOUSE FOUNDATION SECTION
C-6 Not to Scale
cO Provide non–woven needle
— punched geotextile fabric
between stone and earth.
18" Min
18" Min. Increase depth
as required to insure
foundation bears on
satisfactory insitu material
having a minimum
bearing capacity of 2,000
PSF Minimum bridging
depth 10–FT.
DO NOT SCALE DRAWINGS
Limitation of Liability. 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, Terr
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.
© Copyright 2019 T.E.
ALLEN ENGINEERING PC.
All Rights Reserved
Worldwide.
PRELIMINARY – NOT
FOR CONSTRUCTION
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C-6
SHEET 6 OF 6