20131037 Ver 1_More Info Received_20131015

Knit B. WAFER, PE, LLG
October 9, 2013
Division of Water Resources
Wetlands, Buffers, Streams — Compliance and Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699 -1650
RE: 401 Water Quality Certification Application (REVISION)
179 Tryon Bay Circle
Lake Lure, NC 28746
To whom it may concern,
13- 103-7
Kim B. Wamer, PE, LLC
139 CounW jwood Drive
Forest City, NC 28043
PhondFax (828) 248 -1240
Cell (828) 429 -2466
Email — wamernblucridec.net
The previously submitted and approved plan for construction of a seawall and retaining wall on the
Prewitt property at 179 Tryon Bay Circle in Lake Lure, NC has been revised.
For the previous plan, all involved parties had expected the owner of the adjoining property (Lucille
Hodge, Duck Cove Properties, pin no. 227900) east of Mr. Prewitt's property to participate in a
proposed joint repair of the two properties which were both damaged by the mud slide on May 5,
2013. As of this writing, Ms. Hodge has been unable to participate in the proposed joint repair which
included a tall seawall and retaining wall combination that would join Mr. Prewitt's walls at the
property line.
The apparent withdrawal of Ms. Hodge from the project necessitates a revised design. The new
design essentially turns the walls 90 degrees near the east property line corner and extends it up the
slope similar to the curve on the west side of the property. The attached drawing depicts this change.
No other revisions to the permit application or the permit conditions as issued appear to be necessary.
By copy of this letter, the Prewitts respectfully request that a revised 401 Water Quality Certification
be issued for this project based on this new drawing. Please also note that if Ms. Hodge's status
changes and she is able to participate in this project and secures the necessary permits to allow
construction to begin while Mr. Prewitt's walls are under construction, the Prewitts presume that they
would be allowed to use the original plan to construct the walls. If you have any questions or
concerns, please contact me at one of the numbers listed above.
Sincerely, ►�(1.� � ���
4- e �/ -- OCT 1 5 2013
Kim B. Warner ..
............................

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Professional SurvgyjflgPLLC
[FIRM LICENSE NO. P -1138]
206 N. MAIN STREET
P.O. BOX 1161
Ri.ITHERFORDTON, NC 28139
PHONE: [phone]
CONSTRUCTION PLAN DURING
FULL POND CONDITIONS
(LAKE ELEVATION = 990.0'
Z -03
SANDBAGS AS REQUIRED
4 TO 6 MIL PLASTIC
LAKE LURE ELEV990'
FOR SEAWALL CONSTRUCTION DURING FULL POND CONDITIONS,
THE FOLLOWING INSTRUCTIONS APPLY.
1) EXCEPT FOR THE INSTALLATION OF THE TEMPORARY SANDBAG WALL AND THE FIRST 2TO 4 COURSES OF
SEGMENTAL BL ocK, THE SEAWALL WILL BE CONSTRUCTED FROM THE LAND SIDE OF THE WALL DISTURBANCE TO
THE LAKE SHALL BE MINIMIZED. THE PROPERTY IS IN A SMALL NO WAKE BAY OFF OF THE MAIN CHANNEL
2) CONSTIMT TEMPORARY SAND BAG WALL ALLOWING APPROXIMATELY 2,r IN FRONT OF PROPOSED FOO TING
LOCATION FOR ACCESS TO FOOTING AND BLOCK DURING CONSTRUCTION
3) PROVIDE 4TO6 MIL PLASTIC BARRIER ON LAKE SIDE OF TEMPORARY WALL
4) PUMP WATER FROM SEAWALL SIDE OF TEMPORARY WALL.
5)
CONSTRUCT 2 T04 COURSES OF THE SEAWALL TO ENSURE THAT THE TOP IS ABOVE FULL POND (B. = 0.01
6) REMOVE TEMPORARY SANDBAG WALL AND CONTINUE CONSTRUCTION TOCOMPLETiON
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SEAWALL AND RETAINING WALL DESIGN NOTES:
1. SOIL 1.00NGS CONSIDERED IN THIS DESIGN AND CALCULATIONS ARE BASED ON THE FOLLOWING PARAMETERS.
FRICTiONANGLE COHESION UNIT WEIGHT SOILTYPE
INFILL SOIL <32 DEG 0 PSF 120 PCF WELL COMPACTED SILTY, SANDY CLAY
RETAINED SOIL <32 DEG O PSF 120 PCF WELL COMPACTED SILTY, SANDY CLAY
FOUNDATION SOIL <32 DEG 0 PSF 120 PCF WELL COMPACTED SILTY, SANDY CLAY
2. GLOBAL STABILITY HAS BEEN CONSIDERED IN THIS DESIGN.
3. HYDROSTATIC LOADING IS NOT CONSIDERED IN THIS ANALYSIS. SUFFICIENT DRAINAGE MUST BE
PROVIDED SUCH THAT HYDROSTATIC LOADING DOES NOT DEVELOP IN THE REINFORCED ZONE.
4. ANALYSIS ASSUMES FILL PLACEMENT IN 8INCH LIFTS COMPACTED TO 9571y STANDARD PROCTOR.
COMPACTION TEST FREQUENCY SHALL BE DETERMINED BY THE ENGINEER OR AS OTHERWISE SPECIFIED.
5. RETAINKG WALL UNiTS AND INSTALLATION SHALL CONFORM TO THE MANUFACTURERS SPECIFICATION
GUIDELINES, GEOGRID REINFORCEMENT SYSTEMS SPECIFICATION GUIDELINES, AND WATER MANAGEMENT
SPECIFICATION GUIDELINES.
6. THE SEAWALL AND RETAINING WALL DESIGN SHOWN ON THIS DRAWING INCORPORATES THE SOIL PARAMETERS
AND FINDINGS AS EXPRESSED IN THE SOILS REPORT SPECIFIC TO THE PREWITTAND HODGE PROPERTY DATED
AUGUST 27,2013, PROVIDED BY WILL GENTRY OF GENTRY GEOTECHNICAL ENGINEERING, PLLC, ASHEVILLE, NC
THIS SEAWALL/ RETAINING WALL COMBINATION IS DESIGNED
TO BE CONSTRUCTED INDEPENDENT OF ANY STRUCTURES
PROPOSED FOR THE HODGE PROPERTY.
IF A DESIGN FOR THE HODGE RETAINING WALLS IS
PRESENTED AND APPROVED BY THIS ENGINEER IN WRITING
AS CAPABLE OF JOINING THE PREWITT WALLS, THEN
CONSTRUCTION MAY REVERT TO THE ORIGINAL DESIGN
BASED ON THE TIMELINESS OF THE DESIGN SUBMITTAL.
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VICINITY MAP
(not to scale)
** NOTES **
1. Road R/W lines are approximate unless
otherwise noted.
2. Property is subject to easements of record;
utility easements, road rights of way and
underground utilities.
3. Underground phone, water, gas, sewage lines
and underground electric lines were not
located as a part of this boundary , survey.
4. No features located other than those shown.
5. This survey was performed without the benefit
of a title research.
6. Property is subject to setbacks and restrictive
covenants of record, if applicable.
7. Building setbacks are shown based on present
shoreline and road location.
8. This property and structure has been effected
by a landslide on site.
New Nail
(set in
asphalt)
New Nail
(set in
asphalt)
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Reference to map of survey by Nathan Odom, PLS of
Professional Surveying Services, dated September 27,
1996, map# 18251 L, and titled "J. Garlon Prewitt and
wife, Cynthia Prewitt."
LEGEND
• FOUND IRON PIN (EIP)
O SET IRON PIN (NIP)
• POINT
NAIL OR RAILROAD SPIKE
HYDRANT
❑ TELEPHONE PEDESTAL (PED)
7(X LIGHT POLE OR LAMP
`-O-, UTILI TY POLE
Wv
WATER VALVE
O• WATER METER (wm)
V GAS VALVE
Q SEWER MANHOLE
Fol CONCRETE MONUMENT
RIGHT OF WAY MONUMENT
STONE
Property Line
Adjoiners (Surveyed)
— — Adjoiners (not surveyed)
Right of Way
- -- Utility Lines
Asphalt
— — _ — Gravel
THIS IS AN 18X24 �C) PAGE
W. TERRY FOUNTAIN, SR.
and wife
JANET B. FOUNTAIN
DB 742/329
2
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8' Pine
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1 0.11 ACRES
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"PRELIMINARY PLAT
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Existing- Nail
(in asphalt)
GEOGRID EDGE
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INA
asphalt
NIP
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° IRREGULAR SHOREUNE
® DUE TO MUDSLIDE
'2.
'226 WATER DEPTH •2.50, WATER DE
WATER DtYiTi
° posts fr old
WATER DEPTH
boathc ise WATFK.5 OF
° LAKf / LIRE
Q Water Surface EL' 990.15'
(AD Water Bavatlon Observatlam Recorded
an July 01, 2013)
Bewtions obt*md by GM VRS DATA
KM 83`2011
n ° ° NAVD ea
• i o2s
WATER DEPTH
• F ooa
WATER DEPTH
EIP.
S89 °57'59 "W
58.40' fTie Oniv)
DUCK COVE PROPERTIES
DB 657/199
•9 82'
WATER. DEPTH
S
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"PRELIMINARY PLAT
Not for recordation, conveyances, or sales."
SURVEY FOR
GARLON J. PREWITT
and wife
CYNTHIA LEE PREWITT
DEED BOOK 678 PAGE 374
TAX MAP 549 BLOCK 2 PARCEL 10
TAX PIN 223731
PLAT BOOK 5 PAGE 35
ZONED: R -1
CHIMNEY ROCK TOWNSHIP RUTHERFORD COUNTY, NC
FIELD: E. HERNANDEZ. M. GONZALEZ MAP: J. GRAUDSZUS
DATE: JULY 11, 2013 MAPS: 23028
GRAPHIC SCALE
10 0 5 10 20
1 INCH = 10 FEET
Professional Survey_g, PLLC
[FIRM UCENSE NO. P -1138]
206 N. MAIN STREET
P.O. BOX 1161
RUTHERFORDTON, -NC 28139
PHONE: [phone]
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