HomeMy WebLinkAbout20171209 Ver 1_Shoreline Stabilization_20170920State of North Carolina
Department of Environment and Natural Resources
DWR Division of Water Resources
Division of Water Resources ISA NCAC 02H .0500 — Water Quality Certification, Shoreline Stabilization
FORM: SSGP 10-2013
Shoreline Stabilization Application Form
Three copies of the application (including attachments) and the application fee should be sent
to:
Division of Water Resources
401 & Buffer Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
2 0 1 7 1 2 0 9
�FP202017
I. Applicant Information [15A NCAC 02H .0502(a)] I
1. Owner Information
01 &BUFFER PERMITT NG
Name: Town of Lake Lure
Mailing Address: P.O Box 255
Lake Lure, NC 28746
Telephone Number: (828) 625-9983 Fax Number: (828)625-8371
E-mail Address: eco@townoflakelure.com
2. Agent/ Contact Person Information
A signed and dated copy of the Agent Authorization letter (a form can be downloaded here:
http://www.saw.usace.army.mil/Portals/59/docs/regulatory/regdocs/Permits/SAMPLE AGENT AUTH
ORIZATION FORM.pdf) must be attached if the Agent has signed this application form.
Name:
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Person to receive the Certification Approval:
II. Project Information [15A NCAC 02H .0502(a) & (b)]
1. Attach a vicinity map (i.e. street map) clearly showing the location of the property with
respect to local landmarks such as towns, rivers, and roads.
2. Provide a detailed site plan showing property boundaries and proposed locations of
vegetation clearing, structures (buildings, retaining walls, docks, impervious surfaces,
FORM: SSGP 10-2013 Page 1 of 3
etc.), rip rap, excavation or dredging below Full Pond/ Normal Water Level elevations,
and construction access corridors. You may use the diagram provided at the end of this
application form.
3. Attach a photograph of the shoreline/ buffer proposed to be stabilized. (Include a scale
of some sort- a yard stick, shovel handle, etc.)
4. Location of the property (where work is to be conducted)
County: Rutherford Nearest Town: Lake Lure
Subdivision name or site address (include phase/lot number): See attached narrative for
roiect locations.
Directions to site - please include road names and numbers, landmarks, etc.: Property
and coordinates are described in the Table in the attached narrative. A direction
sheet for Lake Lure Town Hall (lake owner) is attached as well.
Latitude (in decimal degrees) 35.435510 Longitude (decimal degrees) -82.232048
5. Describe the existing land use or condition of the site at the time of this application
(residential, undeveloped, etc.): Residential
6. Property size (acres): 814 acres
7. Lake/ river/ ocean adjacent to property: Lake Lure
8. Describe proposed work (include discussion as to how hardening of shoreline has been
avoided, or why it is necessary): Apply rip rap for purpose of armoring eroding shoreline;
repair/reconstruction of existing seawalls with rip rap reinforcement (see attached
narrative
9. Will work be conducted from land? ® From water?
10. Total amount of disturbance (including all excavation, backfill, rip rap, retaining walls, etc.)
below the normal pool lake level/ Normal Water Level in square feet or acres:
Approximately 14.678 sauare feet of impact. See attached individual plans for details.
11. Total amount of disturbance (including all clearing, back fill, excavation, rip rap, retaining
walls, etc.) above the normal pool lake level/ Normal Water Level and 50 feet land -ward in
square feet or acres: Approximately 8,852 square feet of impact. See attached indiv. plans
12. Please describe the vegetation above the normal pool lake level/ Normal Water Level and
50 feet landward to be impacted (number of trees, for instance): All sites have mostly
natural vegetation or lawns with exception of Kavanagh site which has structures all the
way to waters edge. See attached individual plans.
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Owner/Agent's Signature* [15A NCAC 02H .0502(f)] Date
a<<,6(1-,
FORM: SSGP 10-2013 Page 2 of 3
Agent's signature is valid only if an authorization letter from the owner is provided.
Full Pond/
Normal Water Level
51
Lake
(At Full Pond/ Normal Water Level)
Please approximately sketch the following information on this plan (provide dimensions for each
item, such as 10 ft x 100 ft) *:
1. All proposed vegetation clearing
2. Location of rip rap or fill to be placed above the Full Pond/ Normal Water Level elevation
3. Location of rip rap or fill to be placed below the Full Pond/ Normal Water Level elevation
4. Location of any proposed structures such as buildings, retaining walls, docks, etc.
5. Location of any excavation or dredging below the Full Pond/ Normal Water Level elevation
6. Location of construction access corridors
FORM: SSGP 10-2013 Page 3 of 3
Lake Lure 401 Certification
Narrative
Prepared and Submitted By: Clint Calhoun, CFM, CLM
Lake Lure is a man-made lake located in western Rutherford County. The lake is owned
by the town and was built in 1926 for the purposes of recreation and hydroelectric power
generation. The lake covers approximately 814 acres with approximately 20 '/z miles of
shoreline. Much of the shoreline has been previously impacted through construction of
seawalls. Due to the large numbers of seawalls, many of the unprotected sections of
shoreline are experiencing more severe erosion as a result of the reflected wave action
from those seawalls. Additionally, many of the older seawalls have begun to show signs
of wear as wave action degrades mortar joints and causes undermining of wall footings.
Since 2006, the Town has adopted rules encouraging the use of rip rap as a shoreline
stabilization technique. Where seawalls are a necessity, due to topography of the lake
shore, the Town requires that rip rap be placed at the toe in order to reduce the reflective
nature of the waves, thereby reducing the erosive forces as well as improving habitat for
benthic macroinvertebrates, fish, and other aquatic organisms.
Purpose of Project:
Shoreline Stabilization. Purpose is to stabilize shoreline areas using rip rap and other
shoreline stabilization techniques in order to reduce shoreline erosion potential and to
reduce damage to existing seawalls and other lake structures.
Description of Project:
Part 1: Shoreline Stabilization. Shoreline stabilization work will be done using Class
C rip rap with filter cloth behind the stone. In most cases, the rip rap is being placed in
front of existing seawalls to serve as a protective barrier and break up wave action,
thereby reducing damage to the seawalls and subsequent shoreline erosion. Rip rap shall
be placed no more than 3 feet waterward of any seawall on a 2:1 slope. All work shall be
done while the lake is drawn down from November 26, 2017 until February 15, 2018.
Except where the shoreline can be easily accessed with wheelbarrows, or small loaders
and hand labor, all work shall be done by barge with much of the rock being placed by
hand labor or small loader. Any hydraulic equipment used on the dry lake bed shall be
on mud mats. The 25 foot trout buffer shall not be impacted except under the provisions
described in the Sedimentation Pollution Control Act. Greater impacts than those
described under the SPCA on the landward side shall require a trout waiver from the
Division of Land Resources, Land Quality Section and such projects will not be
individually permitted by the Town until a trout waiver is acquired where applicable.
Approximately 2,777 linear feet of shoreline will be stabilized. See following maps and
table for descriptions of shoreline sections to be stabilized. Each project will be done
separately by upland property owners and/or their respective contractors after receiving
approval by the Town, subsequent to 401 certification.
Directions to Sites:
All sites will be accessible by boat at the request of inspection personnel. Individual
addresses are located in attached table. Directions to Lake Lure from Asheville: from
NCDENR Asheville Regional Office, take US Hwy 70 to I-40. From I-40 east, take
Black Mountain/NC-9 exit. Take NC -9 south to Bat Cave. Turn left on US Hwy 74A
and go approximately 3 miles. After crossing the Broad River, Lake Lure Municipal
Center will be located on the left. Physical address is 2948 Memorial Hwy.
Equipment and Materials:
Part 1: Shoreline Stabilization. Where sea walls are being repaired, materials will
consist of mortar and masonry rock. Additional armoring for sea walls and unprotected
shoreline areas will be done using Class C rip rap. Filter cloth will be placed beneath the
rip rap, between the stone and the land surface and/or face of a seawall. Where mortar is
used or concrete footers are to be poured, it shall be used in such a way as to allow 28
days of cure time before coming into contact with the waters of the lake. All repair and
armoring work will be done by barge from the water side by hand labor, except where
road access allows for easy placement of rip rap along shoreline using hydraulic
equipment. Any hydraulic equipment used on the lake bottom will be operated on mud
mats, from a barge, or on dry land. Silt fencing and/or other sediment and erosion control
measures will be installed as needed in order to prevent sedimentation.
Where new sea walls are being constructed, plans submitted describe the walls as being
constructed as poured -in-place concrete with a masonry rock fagade on the lake side.
This method requires that rip rap be placed at the toe of the sea wall with filter cloth in
between the sea wall and the rip rap. Trout buffer waivers may be needed in order to
allow appropriate access in order to do the work. Property owners have been notified
where this applies and will not be allowed to do work until proof of a trout waiver is
provided. Equipment used is similar to that found above except where backfilling is
required, in which case much of the work shall be done on the land side by excavator. At
no time shall any hydraulic equipment be allowed in the water, and all appropriate
sediment and erosion control measures will be installed prior to commencement of
construction.
Description of Vegetation: Vegetation above normal pool lake level and 50 feet
landward is variable. In some cases buffer zones are intact with substantial mountain
laurel and rhododendron species, pine, oak, tulip poplar, red maple, and sourwood.
Eastern hemlock persists in some areas. In other areas of the lake, natural woody
vegetation has been mostly removed and been replaced with ornamental landscaping and
lawns. In the case of the Kavanagh property in this application, there is no vegetative
buffer zone as it was replaced with decks and concrete structures many years ago No
vegetation will be removed for the majority of these projects due to the fact that the
majority of work will be done from the waterward side as opposed to the landward side.
Where new sea walls are to be constructed, there will be removal of vegetation as part of
the reconstruction process and accessing the shoreline from the landward side, however
no removal shall take place without a trout waiver from the NC Division of Land
Resources, Land Quality Section and impacts will be very minimal. Property owners
must provide the Town of Lake Lure with a copy of the waiver before they will be
allowed to start work.
Project Areas Table:
Upland Property Owner
Upland Property Address
Description of Work
Jay and Sara Cronk
Lot 10, Chapel Point Road
Place rip rap along area of natural bank that
Lat. 35.43711; Long. -82.21875
is eroding and where a future lake structure
will be installed. Approximate length of
shoreline to be stabilized is 27'
Clarence Stokes
280 Mark Twain Dr.
Replace existing seawall with new seawall;
Lat. 35.43456; Long. -82.22248
reinforce toe with rip rap. Approximate
length of shoreline to be stabilized is
87.54'.
John Thomas Davis Sr.
275 Lakeview Rd.
Reinforce toe of existing seawall with rip
Lat. 35.43194; Long. -82.20767
rap. Approximate length of stabilization is
215'.
Joe and Julie Kavanagh
130 Edwards Point Rd.
Reinforce toe of existing seawall with rip
Lat. 35.44342; Long. -82.19028
rap. Approximate length of stabilization is
76'.
Calvin Navis
140 Lake Ridge Rd.
Reinforce toe of existing seawall with rip
Lat. 35.42385; Long. -82.19386
rap. Approximate length of stabilization is
128'.
Camp Lurecrest Ministries LLC
207 Charlotte Dr.
Replace existing wooden seawall with
Lat. 35.41841; Long. -82.19488
poured concrete seawall; reinforce toe with
rip rap. Approximate length of shoreline
stabilization is 373'.
Maps, plans and/or photographs are included in this packet for rip rap and seawall
projects. Because seawall projects tend to be more complicated than rip rap stabilization,
engineered drawings are being attached for those projects where walls are being replaced
or significant repairs are being made to the wall. The only wall projects being undertaken
under this application are the following:
Clarence Stokes
Camp Lurecrest Ministries LLC
See attached plans for details on these projects.
Jay and Sara Cronk
1 inch = 75 feet
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SEAWALL DESIGN FOR
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SEAWALL DESIGN FOR
ENGINEERED BY
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KIM B. WARNER, PE, PLLC
MR. AND MRS. CLARENCE STOKES
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ASSUMES NO IIABILTIY EXCEPT TO MAKE
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TYPICAL SECTION
SCALE - 318" =1'-0"
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12" OPEN BOTTOM BOND BEAM BLOCK AT TOP
COURSE W12 #5 REBAR
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3 112"
FROM FILL FACE OF WALL
#57 WASHED STONE FILL, 12" MINIMUM BEHIND
WALL INSTALLED FROM 6" BELOW WEEP HOLES TO
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FINISH TO BE APPROVED BY OWNER ..
COMPACTED SOIL OR GRAVEL FILL BEHIND WALL
SOIL FILTER FABRIC INSTALLED AS SHOWN = I III
SOIL FILTER FABRIC INSTALLED BETWEEN SOIL
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RIP RAP INSTALLED TO s. (-
ELEVATION 992.5' AT A I—I I=
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TYPICAL SECTION
SCALE - 318" =1'-0"
ROCK OPTION
THIS CONSTRUCTION SECTION IS TO BE USED WHEN ROCK IS ENCOUNTERED AND THE FOOTING
CANNOT BE EXCAVATED WITHOUT A JACKHAMMER. THE #6 REBAR HOOK PINS SPECIFIED HERE MUST
BE SEATED IN AT LEAST 5" OF SOLID ROCK. IF THE FIRST 6 TO 8" OF DRILLING IS SOFT ROCK THAT
BREAKS APART, THE HOLE MUST BE EXTENDED UNTIL 5" OF SOLID ROCK IS ENCOUNTERED. THE
LENGTH OF THE HOOK REBAR MUST BE ADJUSTED ACCORDINGLY.
ROUGH TEXTURE STUCCO TO LAKE BOTTOM
FINISH TO BE APPROVED BY OWNER
SOIL FILTER FILTER FABRIC INSTALLED AS SHOWN
RIP RAP INSTALLED TO
ELEVATION 992.5' AT A
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MORTAR PER MANUFACTURER'S INSTRUCTIONS,
INSTALL 6 TO 12" FROM SHORE EDGE OF FOOTING
TYPICAL SECTION (ROCK ENCOUNTERED)
SCALE - 3/8" = V-0"
DESIGN INFORMATION (APPLIES TO ALL PAGES)
THE DESIGNS PRESENTED ON THIS DRAWING INCORPORATE THE FOLLOWING MINIMUM VALUES.
VERIFICATION OF THE DESIGN ELEMENTS SHOWN ON THESE PLANS DURING CONSTRUCTION IS
THE RESPONSIBILITY OF THE LOCAL AUTHORITY NOT THE DESIGN ENGINEER.
CONCRETE (WHEN APPLICABLE)
MINIMUM 28 DAY COMPRESSIVE STRENGTH
FOOTINGS & WALLS/SLABS
3500 / 3500 PSF
DENSITY
150 PCF
PERFORMING SLUMP
4 INCHES
SOIL (WHEN APPLICABLE)
APPLICABLE)
MINIMUM SOIL BEARING PRESSURE
2000 PSF
MINIMUM SOIL INTERNAL FRICTION ANGLE
30 DEG
COMPACTED BACKFILL DENSITY
100 MPH
SLIDING COEFFICIENT
.35u
REINFORCING (WHEN APPLICABLE)
ALL REINFORCING STEEL IS TO BE ASTM A615 GRADE 60,
FABRICATED AND PLACED IN ACCORDANCE WITH ACI 318,
ALL LAPS SHALL BE A MINIMUM OF 36 BAR DIAMETERS.
GENERAL NOTES:
IMPORTANCE FACTORS (WHEN APPLICABLE)
WIND
1.0
SNOW
1.0
SEISMIC
1.0
DESIGN LOADS (WHEN
APPLICABLE)
ROOF DL / SNOW
15/20 PSF
FLOOR & DECKS DL I LL
10 /40 PSF
WIND
100 MPH
EXPOSURE CATEGORY
C
SEISMIC DESIGN (WHEN APPLICABLE)
SEISMIC USE GROUP
1
SITE CLASSIFICATION
D
SPECTRAL RESPONSE
ACCELERATION SDS 39% g, SD1 21 % g
STRUCTURALSYSTEM
MOMENT FRAME
SEISMIC BASE SHEAR
Vx=1.lk, Vy=1.1k
ANALYSIS PROCEDURE
EQVLNT LTRL FRCE
1. GLOBAL STABILITY AND SEISMIC LOADING HAVE BEEN CONSIDERED IN THIS DESIGN,
2. HYDROSTATIC LOADING IS CONSIDERED IN THIS ANALYSIS. SUFFICIENT DRAINAGE MUST BE PROVIDED
SUCH THAT HYDROSTATIC LOADING IS DISSIPATED.
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1 inch = 200 feet
RIP RAP INSTALLED FROM LAKE
BOTTOM TO ELEVATION 992'
SOIL FILTER FABRIC INSTALLED AS SHOWN `SEAWALL�J
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RIP RAP INSTALLATION PLAN
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SHEET
SGNIFICANT CARE AND EFFORT HAVE BEEN TAKEN
TYPICAL
KIM B. WARNER, PE, PUC
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O ENSURE THAT THESE PUNS ARE CORli'MA"NO
MR. AND MRS. JOHN DAVIS
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REV
275 LAKE VIEW DR. LAKE LURE. NC 28746
_p,
SCALE_
FOREST CITY, - 28043
RFV
CORRECTIONS AND REISSUE COP ES AS .
Joe and Julie Kavanagh
1 inch = 203 feel
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Ref. Bearing Survey by Nathan Odom, PLS
Professional Surveying Serum 22828 N85'44'03"E
dated October 28, 2011, MOP# 60,92'
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PRESENTED ON THIS DRAWING INCORPORATE THE FOLLOWING MINIMUM VALUES.
J OF THE DESIGN ELEMENTS SHOWN ON THESE PLANS DURING CONSTRUCTION IS
RESPONSIBILITY OF THE LOCAL AUTHORITY NOT THE DESIGN ENGINEER.
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DENSITY
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SEISMIC DESIGN (WHEN APPLICABLE)
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ALL REINFORCING STEEL IS TO BE ASTM A615 GRADE 60,
SITE CLASSIFICATION D
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SPECTRAL RESPONSE
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ANALYSIS PROCEDURE EQVLNT LTRL FRCE
1. GLOBAL STABILITY AND SEISMIC LOADING HAVE BEEN CONSIDERED IN THIS DESIGN.
2. HYDROSTATIC LOADING IS CONSIDERED IN THIS ANALYSIS, SUFFICIENT DRAINAGE MUST BE PROVIDED
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CHIMNEY ROCK TWP
RUTHERFORD CO., NC
DEED REF(s): 596/528
?VEY DATE(s): 12/18-20 &12/28, 2001
1/02, 1/07, 1/10 & 1/11: 2002
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KIM B. WARNER, PE, PLLC
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TO ENSURE THAT THESE PLANS ARE CORRECT AND
CAMP LURECREST MINISTRIES INC.
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205 LURECREST DR. LAKE LURE, NC 28746
SCALE - NONE
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FOREST CITY, NC 28043
REV
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ASSUMES NO LIABILITY EXCEPT TO MAKE
CORRECTIONS AND REISSUE COPIES AS REQUIRED.
PE NO 19856 COMPANY NO P-1583
FILE- KW -STOKES CMU SWI