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HomeMy WebLinkAbout20200932 Ver 1_DCM Correspondence_20200827Strickland, Bev From: Bodnar, Gregg Sent: Thursday, August 27, 2020 2:24 PM To: Snider, Holley Subject: FW: [External] RE: Windfare Condos LLC Attachments: 200824 Windfare Townhomes CND Survey (002).pdf; Windfare Townhomes Certification Letter (002).pdf; PM2506S CAMA Major Mod.pdf Hey Holley, Updated depth survey for Windfare Condos. We have a number of objections do to navigation and the applicant did a through survey. We have yet to review. G regg From: Ron Cullipher <ron@tcgpa.com> Sent: Thursday, August 27, 2020 12:24 PM To: Bodnar, Gregg <gregg.bodnar@ncdenr.gov> Cc: Brownlow, Roy <roy.brown low@ncdenr.gov>; Styron, Heather M. <heather.m.styron@ncdenr.gov>; APW@wardandsmith.com; Robert Hunter Jackson - Grey Bull, Inc (rjackson.nc@gmail.com) <rjackson.nc@gmail.com>; Sammy Ballou <sfballou@bizec.rr.com> Subject: [External] RE: Windfare Condos LLC External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Good morning Gregg, we have completed the additional soundings as previously discussed with Roy and have added them to our CAMA Major Modification Sheet. No SAV's were detected, nor expected in the -3 NLW areas. We added an interpolated line at the -3 NLW on the east side of the property in the channel portion of the project. The smallest pinch point in this channel is directly across proposed lift slips 15 and 16. The width from the waterward extent of the 30' lift slip dimension was determined to be 60.81 feet and is shown on our plat. That amount of distance is certainly acceptable for two-way boating traffic. Some of the comments by those voicing their concerns indicated that we were not depicting the true conditions of the canal. We did double check our data and feel comfortable that the data provided is accurate and representative of the conditions in the field. We did obtain additional data points to validate the previously submitted maps. The new map is enclosed and can be printed on a 12x18. We will deliver full size drawings to your office as well. The owner, wanting to have a second opinion, engaged TI Coastal Services, Inc. to perform an additional hydrographic survey. TI Coastal Services, Inc. is setup with hydrographic equipment that can collect 20 soundings per second. Their data points far exceed the data points we collected utilizing conventional surveying profile techniques. Their survey which is attached showed the tightest pinch point at the same general location but determined the width past the proposed 30' lift slips at 64 feet at their station 3+50. It would not be uncommon for some boats to protrude slightly beyond the docks attributed to motor brackets and/or motors themselves. With 60' to 64' available for boating traffic a minor intrusion into that space is still not a problem. Please keep in mind the representative soundings are at normal low water so that is the minimum width at that tide situation, with the tide amplitude at 3' plus it is much greater width of navigation. I have copied Ms. Amy Wang at Ward and Smith on this email and Mr. Jackson and Mr. Ballou will be taking copies to Crows Nest representatives as well. thanks ,ron Ronald D. Cullipher, P.E. The Cullipher Group, P.A. President 151A Hwy 24 Morehead City, North Carolina 28557 Office 252.773.0090 Fax 252.773.0243 ron@tcgpa.com From: Bodnar, Gregg <gregg.bodnar@ncdenr.gov> Sent: Monday, August 10, 2020 3:18 PM To: Ron Cullipher <ron@tcgpa.com> Cc: Brownlow, Roy <roy.brown low@ncdenr.gov>; Styron, Heather M. <heather.m.styron@ncdenr.gov> Subject: Windfare Condos LLC Afternoon Ron, Per your discussion with Roy I have attached the hold letter for Windfare. I tried to give some detail on the survey map requirements for reference. As Roy mentioned there are a significant number of objections coming in, so if you'd like copies let me know. They may help put what the survey may need to describe in context. I also added some information about SAV in case it is encountered, since the agencies would ask for it. Thanks and let me know if you have any questions, G regg Windfare Townhomes Atlantic Beach, Carteret County, North Carolina 4 y � ♦+ Tly TI -,s � oastal Bogue Sound IW' Atlantic Beach :a ,>>� ter: roject Area �� N i�o��`..� . i � �' i � � � I -_ yt� �j�' � �� - > 11�A�1•�1d.14�1i�� �' y w:cola IL /�•j .S Y } an Ca �� .' � � A�� ,.� � j a-►�� =�4:� c-B-each usew Conditional Survey August 24, 2020 ead City N shore D w Entrance Channel CA 0 _-' Ess����A \ [ C 2 0 EAL - L-5292 SUR\1 �0\; ���flliilttt�� old Causeway Road Channel BL +0,6 1 8.4 9 10, 161.6 1213, , 13, 13. 12, 11,9 11,1 10, 10, N Shore Dte I i Caribb a Way � I m 'Lf7 � `DCO. `rmo M�D�MOs 3+50 W �r<r,:rZ 6 3+25 r cum Do�mcu-.munM�M� 3+00 U-;I5"6 Z�i�0605'5i�i� 2+75 CoCU♦Do NC�v-m��mv_� 2+50 n �.On� 000D00tbn�O,D�DDr-I- 2+25 Ln .D'-D v uq'-D ao '-Q 0? `Q C" � M u� _� Ln 2+00 (U D r,: r-: n 00 CO CO.00 OD -gyp O p �D 10r- 1+75 o _MnCD UO,.'DO"o'Da"D�ooi_mv-1 1+50 CJ � tb Cr; OfC6 tb tb O� tb ^ �O ID tP) IP) I17 ID I" 1+25 CU'-QN NSDo.--III ^� 1+�� (' �D 00 ^ ^ kD In In If) n uj 0+75 CD `p CD i' i- - In i' 07 0+50 Dry Lr) Lr u5 Ti Lri Ur 0+25 o .D N CD o OD .D mr,-: 00 00 M 0+00 OD r, ,D 1,0 U-) �D If-) tP) tP) Ln If) If) U-) Q. C•,b a• o h& CC� 3to �d a'a/ 2 32 3� 2$ 32 3� w� Bogue Sound Color Contour Legand —10, = 5' o = J — c — 0' o — m _ L _ L — A — d --10' W E26 Jefferson W Canoy PLS, L-5292 W i n dfa re Town h o m es Datum NC State Plane -Zone 3200, NAD83, Feet N2. Vertical 2. Vertical Datum: Mean Low Water, Feet Datum: TI oastaI '0' Vertical Datum Conversion Atlantic Beach Carteret Count North Carolina y� Graphic Scale S0' 100'6. conditions at that time. 3. Data collected xTl Coastal on August 24,eet and tenths. 4. Soundings are expressed in depths and in feet and tenths. 5. Aerial Photo flown in 2016 and downloaded from NC OneMap. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted Conditional Survey Scale: 1" = 100' c TNAVD88 to Mean Low Water Burin post processing. 1.7' NAVD to MLW separation determined g P P g• P MLWJ from NOAA VDATUM.(https:H/datum.noaa.gov/) TI Coastal Services, Inc. 387-B N. Green Meadows Drive Wilmington, NC 28405 Bathymetry and Color Contours DWG NAME: 200824 Windfare Townhomes CND Survey.dwg DWG DATE: August 25, 2020 SURVEY DATE: August 24, 2020 910.82,.1358 SCALE: 1" = 100' SHEET: 2 OF 8 K: 2678722.5 Ko Langtm 300.0 Ann&9.1 X: 26711119 Y: 357810.8 Y:3501071 0.0 100.0 200.0 300.0 0.0 5.0 ow0 Pmfile Ehlhe, Within Entrance Channel Area ______3.0'MLW Contour_____________ K: 2678NBA 0+ 5 Length 3000 Annuli: 9.1 X:2fi7B6958 Y: 357822.7 Y: 358118,9 a 0 1000 2000 3000 0.0 5.0 30' D+75 Cantaur - - - K: 2678574A 1,50 Length 3000 ABmuh: 9.1 X: 26786217 Y: 357834.5 Y.358130,B 0.0 1000 2000 3000 0.0 5.0 30' sD 3.0'MLW Cantaur K: 26785250 2+00 Length: 3000 Abmuh: 9.1 X: 267/171/ Y: 357WA Y350138.7 0.0 1000 2000 3000 0.0 5.0 30' 2+00 3.0'MLW Cantaur Bogue Sound Profiles 1: 287869].8 0-25 Length: No0 Pa nnuh: 9.1 X:2678745P Y': 357814.8 V: 358111.0 0.0 100.0 200.0 300.0 0.0 ao Bulkhead 5.0 50 10.0 100 I 30' 0.25 - -3.0' ML'N Cunlour - Dill 100.0 Ft In De pN 20.0 Ft ln 1: 1:11117 1+00 Length: NO0 k1huh: 9.1 X2W86]11 37826.6 V: 358122.9 00 1000 200.0 300.0 0.0 00 Bulkhead 5.0 50 10.0 100 I 30' 1.00 3.011LW Contour DBL 100.0 Ft In Depth 20.0 Ft In 1: 1:11117 1H5 Length: NO0 Azlmath: 9.1 X: 2678597.0 Y': 357838.5 V: W134.7 00 1000 200.0 300.0 0.0 0o L Bulkhead 5.0 50 10.0 too I 30' 1+75 3.0'MLWComour X': 28785003 2+25 Lengh: 3W0 Azimuth: 9.1 X:2678547.7 Y'. 357846.4 V: 358142.6 00 100.0 200.0 300.0 0.0 00 ` Bulkhead 5.0 50 10.0 100 I 30. 2.25 3,OMLW Conrour ____________ X: 2671171.1 0+50 Length':PH Azimuth: 9,1 X: 28787205 Y:3578187 Y358115.0 0.0 100,0 2NO 3000 0.0 I I D.0 5.0 5.0 Base Sun D+50 30' 0so 3.V WCompur OIL. 100.0 Ft lh Depth 20.0 Fill X:28IB599.0 1+25 Length: 3D00 khu1h: 9,1 X: 2878fi464 Y:3570306 Y:358126.8 0.0 1.0 2N 0 3000 0.0 I I D.0 5.0 5.0 D 0 0., 5.0 I Base Sun 1+25 30' 1-25 3.0'MLWDOmaur ________---- OIL. 100.0 Ft:ln Depth 20.0 Fill 00 50 00 50 Will CAR�z �0`0FESS�O;� 2 SEAL L-5292 ,c SURE.• gyp\\ 40, (((11111111\\\ Jefferson W Canoy PLS, L-5292 W i n dfa re Town h o m es Graphic Scale Notes: Datum NC State Plane -Zone 3200, NAD83, Feet Datum: 2. Vertical Datum: Mean Low Water, Feet TI =� o a s t a I TI Coastal Services, Drive 387-B N. Green Meadows Drive Vertical Datum Conversion TNAVD88 MLw Atlantic Beach Carteret County, North Carolina HORIZONTAL 0• z5• 50• 100• a and represent conditions at that time. 3. Data collected x Ti Coastal on August in feet 4. Soundings are expressed in depths and in feet and tenths. 5. Aerial Photo flown in 2016 and downloaded from NC OneMap. 6. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted to Mean Low Water during post processing. 1.7' NAVD to MLW separation determined from NOAA VDATUM.(https:H/datum.noaa.gov/) Conditional Survey Scale: �" = 100' VERTICAL o• 51 to• zo• DWG NAME: 200824 Windfare Townhomes CND Survey.dwg Scale: 7" = 20' DWG DATE: August 25, 2020 SURVEY DATE: August 24, 2020 Wilmington, NC 28405 910.82�.1358 Bogue Sound Profiles Stations 0+00 to 2+75 SCALE: As Shown SHEET: 4 OF 8 K:2678476.5 2+50 Length: 300.0 A-gh, 9.1 X: 26785230 Y: 357850.3 Y: 358146,5 0A 100.0 200.0 300.0 0.0 5.0 2+50 OuB1de N Projed ke. 3.0' MLW Contour K:2678/01.5 3+25 Length 3000 Abmulh: 9.1 X: 2675M9 Y: 357862.2 Y: 358158,4 0.0 1000 2000 3000 0.0 5.0 3.25 Outside d PmjedAhee 3.0' MLW Contour Bogue Sound Profiles X', 2:78450.9 2+75 Length: No AZlmuh: 9.1 X:2675498.3 Y': 37854.3 V: 358150.5 0.0 100.0 200.0 300.0 0.0 00 5.0 50 10.0 100 15.0 150 Base Survey 2+75 2+75 O&Ide d PmjW kea _ 30 MLW Contour _ _ _ _ DBL 100.0 Ft In Depth 20.0 Ft In X': 28783789 3+50 Length: No knnuh: 9.1 X: 2678424.2 Y', 357866.1 V: 358162.3 0.0 100.0 200.0 300.0 0.0 00 5.0 50 10.0 100 15.0 150 Base Survey 3+50 X 2678726.3 00011227.EDT Length: 199.6 Aamulh: 70.7 126708707 Y: 357847.2 Y: 3579131 0.0 100.0 200.0 300.0 -10,0 1 1 1 1 1 1 1 1 -10.0 Radial Line 1 -50 -5.0 0.0 0.0 5.0 5.0 10.0 100 15.0 15.8 Base Survey DBL 10D.0 Ftln D001 1227.EDT Depth 20.0 Ft ln 3+50 00si6,ofPmje 1A. 3,0MLWContour _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ DBL 100.0 Ft In Depth 20.0 Ft ln Radial Line Profiles 0.0 5.0 0.0 5.0 X'. 2678720.3 00021224.EDT Length: 1996 Azimuth: 40.7 X: 2678858.5 Y', 357847.2 Y: 351998.5 0.0 100.0 200.0 300.0 10.0 -10.0 Radial Llne 2 -5.0 -u 00 0.0 50 5.0 100 10.0 150 15.0 Base Surrey DBL 100.0 Ft ln 00k 1224.EDT Depth 200 Ft In 12678421.2 3+00 Length': 300.0 Aamuth: 9.1 X: 2:78473.6 Y: 357822 Y:358154.5 0.0 1000 2000 3000 .10.0 .100 5.0 3+00 5.0 Outsideof PmjedAla 0.0 00 3.(1MLWComaur 5.0 50 10.0 10.0 15.0 0 Bese Surrc: DBL 700.0 FI:In 3+00 Depth 20.0 F1:1n N CAR��/.,�, Z�••oFESS�°41 SEAL L-5292 (((11111111\\\ Jefferson W Canoy PLS, L-5292 W i n dfa re Town h o m es Graphic Scale Notes: Datum: NC State Plane - Zone 3200, NAD83, Feet Datum: 2. Vertical Datum: Mean Low Water, Feet TI , o a s t a I TI Coastal Services, Inc. 387-B N. Green Meadows Drive Wilmington, NC 284O5 910 on, N 358 Vertical Datum Conversion TNAVD88 MLW Atlantic Beach Carteret County, North Carolina HORIZONTAL 0• zs• so• too• a and represent conditions at that time. 3. Data collected x TI Coastal on August 24, feet 4. Soundings are expressed in depths and in feet and tenths. S.Aerial Photo flown in 2016 and downloaded from NC OneMap. 6. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted to Mean Low Water during post processing. 1.7' NAVD to MLW separation determined from NOAA VDATUM.(https:Hvdatum.noaa.gov/) Conditional Survey Scale: 1" = 100' VERTICAL a• s• to• zo• Bogue Sound Profiles Stations 3+00 to 3+50 & Radial Profiles 1 and 2 DWG NAME: 200824 Windfare Townhomes CND Survey.dwg Scale: 1" = 20' 25, 2O2O SURVEY DATE: AugusET: SCALE: SCALE: As Shown As OFF SHEET: 5 OF 8 Entrance Channel Profiles X: 2678544.5 No Length: 250.0 Azimuth: 99.0 X: 26787975 V: 357246.1 Y:3512071 0.0 100.0 200.0 300.0 .10,D -100 04 50 0 Outside of ProjedApe 0.0 0.0 5.0 5.0 10.1 0.1 15.0 15.0 Base Survey DBL 100.0 Ft:ln O+DD Depth 20.0 Ftln x 2678556.3 0+75 Length:2500 ASmuh: 99.0 X: 2678B0B2 Y: 3573202 Y:3512112 0.0 1111 2110 3000 .10,1 .10.0 D+75 d0 -5.0 Outside of ProjedAM 0.0 0.0 5.0 5.0 0.0 10.0 15X 15.0 Base Survey DBL 1010i'd 0+75 Depth 20.0 Ftln X: 2678568.0 1+50 Length: 2500 Azimuth: 99.0 X:26 B149 V: 357394.2 Y:3573552 0.0 1000 2000 3000 .10,0 .10.0 1+50 50 5.0 Outside of ProjedAM 0.0 0.0 5.0 5.0 10.0 10.0 151 150 Base Survey DBL IDDO Ft In 1+5D Depth 20.0 Ftln X: 2678578.5 2+00 Length: 2500 Azimuth: 1082 X:2678B160 V:.1 1.2 Y:357313.2 0.0 1010 2010 3000 .10,0 -10.0 2+00 50 -5.0 Outside of Ptak Area D.o o.o s.o s.o 10.0 10.0 15.0 15.0 Base Survey DBL IDDOFLIn 24D Depth 20.0 Ft In X, 2:785d8.5 0+25 Lengh: 2500 Azlmulh: 99.0 X: 26787954 Y: 37270.8 Y: 357231.8 0.0 100.0 200.0 300.0 .10.0 .10.0 5.0 0+25 Outride of Proled Area .6.0 00 0.0 50 5.0 100 10.0 150 j 15.0 Base survey DBL 100.0 Ft In 0+25 Depth 20.0 Ft In X, 2:111".1 1+00 Lengh: 2500 klmulh: 990 X26788071 Y, 3.4.8 Y: 3573058 0.0 100.0 200.0 3000 .10.0 -10.0 1+00 -5.0 5.0 0utededProjadAtea 00 0.0 50 5.0 100 10.0 150 s.0 Base Survey DBL 100.0 Ft In H00 Depth 20.0 Ft In X, 2:111111 1+75 Length: 2500 Azlmulh: 990 X: 2678118.8 Y:I'A .9 V:.19.9 0.0 100.0 200.0 300.0 -10.0 -10.0 1+75 5.0 5.0 DulsidadProjadAre 00 0.0 0 5.0 100 10.0 150 15.0 Base Survey DBL 1000 Ftln 7+75 Depth 20.0 Ft In X, 267A586.3 2+25 Length: 2500 Azlmulh: 108.2 X: 2678823.8 Y. 357475.0 V: 357396.9 0.0 100.0 200.0 300.0 -10.0 .10.0 2+25 -5.0 5.0 Outride Of grand AM 00 0.0 50 5.0 00 10.0 150 15.0 Base Survey DBL 100.0 Ft In 2+25 Depth 20.0 Ft In 12676552.4 0+50 Length: 250.0 Azimuth: 990 X: 2:11111.3 Y: 357295,5 Y:357256.5 u 100,0 2000 3000 .10.0 -100 0+50 5.0 5.0 Outuo,of ProjedAM D.0 00 5.0 50 0.0 10.0 15.0 15.0 Base Survey DBL 100.0 Fda 0+50 Depth 20.0 FI:ln X: 2678564.1 1+25 Length: 250.0 Azimuth: 990 X: 2:111111 Y:357369,5 Y:3573315 OA 100,0 2NO 3000 .10.0 -100 1+25 5.0 -5.1 Outsided ProjedAM D.0 00 5.0 50 10.0 10.0 15.0 15.0 Base Survey DBL 100.0 Fda NH Depth 20.0 Ft in \\\111111111/// N CARoz �0`0FESS�O;� 2 SEAL L-5292 ,c SURE.• �0 /11111111\\\ Jefferson W Canoy PLS, L-5292 Windfare Townhomes Graphic Scale Notes: Datu m an Lo ePlane - Zone 3200, NAD83, Feet Datum: 2. Vertical Datum: Mean Low Water, Feet TI =� o a s t a I TI Coastal Services, Drive 387-B N. Green Meadows Drive Vertical Datum Conversion TNAVD88 MLW Atlantic Beach Carteret County, North Carolina HORIZONTAL 0• z5• 50• 100• a and represent conditions at that time. 3. Data collected x TI Coastal on August in feet 4. Soundings are expressed in depths and in feet and tenths. 5. Aerial Photo flown in 2016 and downloaded from NC OneMap. 6. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted to Mean Low Water during post processing. 1.7' NAVD to MLW separation determined from NOAA VDATUM.(https:H/datum.noaa.gov/) Conditional Survey Scale: 1" = 100' VERTICAL o• 51 to• zo• DWG NAME: 200824 Windfare Townhomes CND Survey.dwg Scale: l"=20' DWG DATE: August 25, 2020 SURVEY DATE: August 24, 2020 Wilmington, NC S 5 910.821.1358 Entrance Channel Profiles Station 0+00 to 2+75 SCALE: As Shown SHEET: 6 OF 8 Entrance Channel Profiles X: 2670594.1 2+50 Length: 250.0 Azimuth: 1082 X: 26788316 Y: 357498.7 Y:3574207 0.0 100.0 200.0 300.0 .10,D -1U 30 2-50 50 0.0 0.0 ulkhead 3omLwcomonr 5.0 5.0 10.0 0.0 75.0 15.0 Base Survey DBL 100.0 Ft:ln 2+50 Depth 20.0 Ftln x 26786175 3+25 Length: 2500 Azimuth: 1082 X26780550 Y: 3575700 Y: 357491,9 00 1000 2000 3000 .10,0 .10.0 30' 0 -5.0 o.0 0.0 5.0 Bulkhead _ 3.0rBLwcomour 5.0 10.0 10.0 1s.o 1s.o Base Survey DBL IDD.O Ft:ln 3+25 Depth 20.0 Ftln X: 2678636.9 4+00 Length: 2500 Aamuth: 100,7 X: 267BB925 Y: 357635.5 Y: 3575B9,0 0.0 1000 2000 3000 .10,0 .10.0 30' so 5.0 0.0 0.0 Bulkhead 3.0'MLW Conmur _ 5.0 5.0 10.0 10.0 15.0 F 50 Base Survey DBL 10D.0 Ft In 4+00 Depth 20.0 Ftln X:26786462 4+50 Length: 2500 Azimuth: 100,7 X: 267BB918 Y: 357684.7 Y:357638.1 00 1000 2000 3000 .10,0 -10.0 30' 50 -5.0 0.0 0.0 Bulkhead 30MLwc t 5.0 5.0 10.0 0.0 15.0 5.0 Base Survey DBL 10D.0 Ft In 4-50 Depth 20.0 Ftln I X, 2:78601.9 2+75 Length: 2500 Azimuth: 108.2 X. 2678839.4 Y: 37522.5 Y: 357444.4 0.0 100.0 200.0 300.0 .10.0 .10.0 5.0 2+75 5.0 00 0.0 Bulkhead __3o•r3orucomonr s o 5.0 100 10.0 150 15.0 Base survey DBL 100.0 Ft In 2+75 Depth 20.0 Ft In X', 2:786253 3+50 Length: 2500 Atlmuth: 108.2 X: 2678062.8 Y: 37593.7 Y: 357515.7 00 1000 200.0 300.0 .10.0 -10.0 a.0 -5.0 00 FBulkj-_3,IrreLwconmur__ 0.0 50 5.0 100 10.0 150 15.0 Base Survey DBL 100.0 Ft In 3+50 Depth 20.0 Ft In X, 2:78615 4+25 Length: 2500 Azimuth: 100.7 X: 2678887.2 Y: 37660.1 Y: 357613.6 0.0 100.0 200.0 300.0 -10.0 -10.0 30' .5.0.5.000 Do Bulkhead 3.0nmu MLwcor _ 50 5.0 100 10.0 150 5.0 Base Survey DBL 100.0 Ftln 4+25 Depth 20.0 Ft In 72678650.9 4+75 Length: 2500 Az1muth: 100.7 X: 2678896.5 Y. 357709.2 Y: 357662.7 0.0 100.0 200.0 300.0 ao.0 ao.o 30 -5.0 .5.0 00 0.0 Bulkhead _ s,oMLwconmur s o 5.0 00 10.0 50 1,0 Base survey DBL 100.0 Ftln 4+75 Depth 20.0 Ft In X: 2676609.1 3-00 Length: 250.0 Azimuth: 108.2 X: 28780/7.2 Y:3575462 Y:357468.2 U 100,0 200 3000 .10.0 -100 30' s.o s 0 o.0 09 Bulkhead _ _3.o 64wcpmpm 5.0 50 10.0 10.0 15.0 15.0 Base Survey DBL 100.0 Ft:ln 34 Depth 20.0 FIJI X: 2678633.1 3-75 Length: 250.0 Azlmuth: 108.2 X: 26788706 Y3576175 Y:357539.4 U 100,0 moo moo .10.0 -100 30' .5.0 -50 D.0 00 Bulkhead 5.0 0 10.0 10.0 15.0 15.0 Base Survey DBL 100.0 Ft:ln 3-75 Depth 20.0 Ft:ln \\\111111111//�/ CARo�/.,�, `0FESS�O;� 2 Q� edi) SEAL L-5292 ��/11111111\\\ efferson W Canoy PLS, L-52 Windfare Townhomes Graphic Scale Notes: Datu m an Lo ePlane - Zone 3200, NAD83, Feet Datum: 2. Vertical Datum: Mean Low Water, Feet TI =� o a s t a I TI Coastal Services, Inc. 387-B N. Green Meadows Drive Vertical Datum Conversion TNAVD88 MLW Atlantic Beach Carteret County, North Carolina HORIZONTAL 0• 25• 50• 100• a and represent conditions at that time. 3. Data collected x TI Coastal on August in feet 4. Soundings are expressed in depths and in feet and tenths. S. Aerial Photo flown in 2016 and downloaded from INC OneMap. 6. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted to Mean Low Water during post processing. 1.7' NAVD to MLW separation determined from NOAA VDATUM.(https:H/datum.noaa.gov/) Conditional Survey Scale: �" = 100'-EW VERTICAL 01 51 10• 20• DWG NAME: 200824 Windfare Townhomes CND Survey.dwg Scale: t"=20' DWG DATE: August 25, 2020 SURVEY DATE: August 24, 2020 Wilmington, NC 211405 910.82, ACSS Entrance Channel Profiles Station 3+00 to 5+75 SCALE: As Shown SHEET: 7 OF 8 Entrance Channel Profiles X: 2670855.5 wo Length: 250.0 ASmuth: 100,7 X: 2678907,7 V: 357M.8 Y: 357fi87,3 00 100.0 200.0 300.0 -10,D -10.0 30' x 26786695 5N5 Length Atlmuh: 100,7 X:2fi78975,7 Y: 357807.5 Y:351760,9 0.0 7000 200.0 3000 -10,0 -10.0 30' ao s.o o.o 0.0 Bulkhead 3_o�I&Lwconww_ _ _ _ _ _ 5.0 5.0 70.0 10.0 75.0 15.0 Base Survey DBL 100.0 Ft:ln 5.75 Depth 20.0 Ft In 50 5.0 . %', 2678680.2 5+25 Lengh:2500 Pzlmulh: 100.7 X.2670905.8 Y', 357758.4 V: 357711.8 0.0 700.0 200.0 300.0 10.0 -10.0 30' 5.0 5.0 a o 0.0 Bulkhead 3.ONLw contow 100 10.0 150 15.0 Base Survey DBL 700.0 Ft In Se25 DBIM 20.0 Ft In %', 2878fi74.1 6+00 Lengh:250A Atlmulh: 100.7 X26789198 Y', 357832.0 Y: 357785.5 0.0 700.0 200.0 3000 .10.0 -10.0 30' -s.o a.o 00 0.0 Bulkhead _ _ _37MLwconur_ _ _ _ _ 50 5.0 10 D 10.0 150 15.0 Base Survey DBL 700.0 Ft In fie00 Depth 20.0 Ft In X2878fifi4.0 5141 +50 Length', 2W.0 Azimuth 100.7 X 2878910.5 Y:3577829 Y:35773fi.4 OA 100,0 2000 3000 -10.0 -100 30' 5.0 5.0 D.0 00 Bulkhead 3.O'MLwconlom 5.0 --------- - -- so 10.0 10.015.0 15.0 Base Survey DBL 700.0 Fl:ln 5�50 Depth 20.0 Ft in X 2878670.8 8+25 Length, 2W.0 Azimuth Azimuth X:287892d.I Y35785fi 6 Y:357810.1 OA 100,0 2000 3000 -10.0 -700 30' s.o 50 Do 00 Bulkhead 9.0Lwconlom _ _ _ 5.0 50 10.0 10.0 15.0 15.0 Base Survey DBL 700.0 Fl:ln 6�25 Depth 20.0 Ft in SEAL �• :• � L-5292 (((11111111\\\ Jefferson W Canoy PLS, L-5292 W i n dfa re Town h o m es Graphic Scale N1tHorizontal Datum: NC State Plane - Zone 3200, NAD83, Feet 2. Vertical Datum: Mean Low Water, Feet TI o a s t a I TI Coastal Services, Inc. 387-B N. Green Meadows Drive Vertical Datum Conversion TNAVD88 MIN Atlantic Beach Carteret County, North Carolina HORIZONTAL o• zs•so• too• 3. Data collected by Ti Coastal on August 24, 2020 and represent conditions at that time. 4. Soundings are expressed in depths and in feet and tenths. S.AerialPhoto fownin2016anddownloadedfromNCOneMap. 6. Data collected in NAVD88 via RTK corrections from the NC-CORS. All data converted to Mean Low Water during post processing. 1.7' NAVD to MLW separation determined from NOAA VDATUM.(hops://vdatum.noaa.gov/) Survey Scale: 1" = 100' VERTICAL a• s• to• zo• DWG NAME: 200824 Windfare Townhomes CND Survey.dwg Scale: 1"=20' DWG DATE: August 25, 2O2O SURVEY DATE: August 24, 2O2O Wilmington, NC 284O5 910.82t.1358 Entrance Channel Profiles Station 6+00 to 6+25 SCALE: As Shown SHEET: 8 OF 8 TI Coastal Services, PLLC. 387- B N. Green Meadows Dr. Wilmington, NC 28405 (910) 821-1358 (o) (910) 821-1359 (f) August 26, 2020 Windfare Townhomes 301 Commerce Avenue, Suite 101 Morehead City, NC 28557 TI •-, Coastal SERVICES This letter certifies that the hydrographic survey performed by the personnel of TI Coastal Services on August 24, 2020 for Windfare Townhomes in Atlantic Beach, NC was conducted in compliance with the most recent editions of the USACE Engineering Manual 1110-2-1003, Hydrographic Surveys and the Engineering Manual 1110-1-1005, Topographic Surveys. The bathymetric map representing the aforementioned survey was submitted with this survey certification. This survey was primarily a single beam hydrographic survey. Measurements were obtained using Real Time Kinematic (RTK) GLASS corrections from the North Carolina CORS (Continuously Operating Reference Station), which provides continuous position and tide corrections for all hydrographic survey observations. The expected accuracy for this method is approximately 0.2' horizontally and vertically. Soundings were collected with an Odom CV-100 echo sounder at 200 kHz and collecting 20 soundings per second. Bulkhead and upland topographic observations were collected with a Trimble R8s GNSS receiver and Trimble TSC3 data collector, again using the NC CORS system for GNSS positioning. Before proceeding with any survey TI Coastal crew members "check into" a known North Carolina Geodetic Survey monument to ensure all equipment is calibrated and recording accurate observations. A tide check is performed in the survey vessel to make sure the GNSS tide correction is accurate before surveying begins. Additionally, a bar check is performed to ensure the transducer's draft and speed of sound is correct. These calibration checks are performed again after the survey effort is complete to make sure conditions have not changed over the course of the survey. On August 24, the R8s rover was checked at the monument "anchorage" located at the corner of East Fort Macon Road and Money Island Drive. The boat was launched at Anchorage Marina where a tide calibration point was set using the R8s GNSS receiver. After launching the vessel, a tide check was performed based off that calibration point. The bar check was conducted in Bogue Sound near the project area. These quality control processes were again performed after the survey was complete. Datum conversions from NAVD88 to Mean Low Water were performed post processing. The datum shift of 1.7' between NAVD88 and Mean Low Water was determined using NOAA's VDATUM webpage (https://vdatum.noaa.gov/). TI Coastal Services has extensive hydrographic survey experience in South Eastern North Carolina. We currently work with clientele ranging from large dredge companies (Great Lakes Dredge and Dock, Weeks Marine, Norfolk Dredging) to smaller dredge companies (Southwind Construction, Marcol Dredging, Cottrell Construction). We also work with municipalities (Town of Topsail Beach, Town of Surf City, Figure 8 Island) and other engineering groups (Moffitt and Nichol, Applied Technology Management) and marinas (Southport Marina, South Harbor Village, Dutchman Creek).CARp�'% E s a Regards, Jefferson Canoy PLS PSM = SEAL < ' TI Coastal Services, PLLC _ L-5292 Office:910-821-1358 .�SU v�. PSG J ff P7 G erson W Canoy, ci N v1 �\ Date SCALE NOT TO -LIFT PILES. TYP. TYPE 1 BOAT DOCK- 2 BOAT LIFTS TYPE 2 BOAT DOCK- 2 BOAT LIFTS PERMITTED BOARDWAL 4-LIFT PILES. TYP. 50' TYP 1 30' TYPE 2 X -9, 08 NL■ X -6.86 NLY X -6. TO HLY APPRp%IMATE EDGE 6 CHANNEL Po z -5.�18 NL■ rHREE rypE ' % -11 .2fi HLY w % -5.74 my Bo4 T OOC X -12,40 NLY X -7.15 NLY a8 �LilS7 IIc m X -11,90 HLY sir3o a �.." 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