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Home My WebLink AboutDCM Written Notice DRAFT 1/18/2023COASTAL PROTECTION ENGINEERING OF NORTH CAROLINA, INC 4038 MASONBORo Loop ROAD WILMINGTON, NC28409 910-399-1905 January 18, 2023 Heather Coats Beach & Inlet Management Project Coordinator North Carolina Division of Coastal Management 127 Cardinal Drive Wilmington, NC 28405 Subject: Hatteras Inlet Channel Maintenance Project — Written Notice of Project Initiation Dear Ms. Coats: The Division of Coastal Management (DCM) issued a CAMA Major Permit for the Hatteras Inlet Channel Maintenance Project on December 22, 2016 (#129-16). This permit was subsequently renewed on January 22, 2020, and modified on December 8, 2022, and has an expiration date of December 31, 2025. This letter serves as written notice of project initiation as required in Condition 7 of the permit. Please find attached to this letter revised permit drawings dated January 18, 2023, which provide the location of the proposed channel for the upcoming event. The project includes maintenance dredging within a portion of the Hatteras Inlet Connector Channel, which runs between the inlet gorge and the southern portion of Sloop Channel, in proximity to Ocracoke Island. This channel is locally referred to as the "Hatteras Connector Channel". The attached plan view drawing shows the locations along the Hatteras Connector Channel in which maintenance dredging is proposed for this event. Two (2) separate channel segments were identified in which maintenance dredging is required, namely North and Center Connector Channels. The attached plans also include the disposal area, avoidance areas identified through cultural resource surveys, submarine cables and a 100-foot buffer around the cables, and previously mapped submerged aquatic vegetation (SAV) resources in the vicinity. Please note the Connector Channel Corridor shown on the drawings incorporates the expanded dredge corridor allowed for by the recent modification to CAMA Major Permit #129-16, dated December 8, 2022. At present, the proposed maintenance event is anticipated to include 7 to 10 days of dredging in the North and Center Connector Channel segments shown on the attached drawings. The event is proposed to utilize the special use Dredge Miss Katie, owned and operated by EJE Dredging Services. Material dredged from the channel by the Miss Katie will be placed in the nearshore disposal location shown on the attached drawings. As you are aware, the Major CAMA Permit (#129-16) allows for maintenance of a 200 ft. wide channel to a depth of -12 ft. MLW. Based on the availability of funds, dredge availability, and conditional surveys conducted January 10, 2023, the proposed channel dimensions for this upcoming dredging event are to establish a 200-foot wide channel at elevation -10 ft. MLW. Based on the conditional survey from January 10, 2023, the establishment of the proposed channel will require the dredging of approximately 39,000 cy of material. While 7 —10 days of dredging COASTAL PROTECTION ENGINEERING OF NORTH CAROLINA, INC. C DASTAL Page 2 PRQTECTIOR ENGINEERING will not allow the removal of this quantity of dredging, the Miss Katie will work toward these target dimensions and quantities for the given period of time. Please note that these channel dimensions and configurations are what are being targeted for this event, but Dare County reserves the authorization to increase the depth up to the permitted -12 ft. MLW depth, depending on production rates and dredge availability. The proposed channel is shown on the attached drawings, including both plan view and cross -sectional view. As required by Condition #7D in CAMA Major Permit #129-16, DCM must be notified of the location of any known SAV beds at least two (2) weeks in advance of dredging. On June 14-15, 2019, and June 11 2020, the Albemarle Pamlico National Estuary Partnership (APNEP) acquired high -resolution aerial imagery from within Pamlico Sound from the Hwy 64 bridge at Roanoke Sound south to Ocracoke Inlet. These images were then used to digitally delineate the boundaries of visible SAV beds. The resultant SAV maps were then made available to the public in August 2022. The closest SAV bed, as delineated from the 2019/2020 assessment, are found within 1,597 ft. from the dredging footprint within the Proposed Middle Connector Channel and 793 ft. from the Proposed North Connector Channel. Regarding contact information during dredge activities, Jordan Hennessy will be the EJE Dredging point of contact for the Miss Katie dredging operations. Jordan's phone number is (252) 619-3606 and his email is jhennessy@ejedredging.com. I will be the County's agent and can be contacted via cell phone at (910) 443-4471 or via email at kwillson@coastalprotectioneng.com. Please feel free to contact me anytime for further clarification or explanation of the project Sincerely Ken Willson Senior Program Manager Coastal Protection Engineering of North Carolina, Inc. Office: 910-399-1905 Mobile: 910-443-4471 kwillson@coastal protectioneng.com CC: Barton Grover, Dare County Jonathan Howell, NC DCM Robert Tankard, NC DWR Brad Rosov, CPE 8_ p oo Ispoa r� GRAPF�IG S('ALE IN Ft ^� RALEIG � 3Np �O CI-�ARiO'ITE Q-��LS_ 1 NqO � I LZCSO HAT-i-ERAS INLET MAINTENANCE PROJECT DARE COUNTY NORTI--i CAROLINA APE HATTERAS PROJECT" LOCA-TION EAV ctl'Y �oo�cOtr-r ATLIiNTIC OCEAN SHEET INDEX 1 covElz sHEtI 2 PROJECT OVERVIEW i+ 3 CONNECTOR CHANNEL PLAN VIEW �yI 4 NORTH CONNECTOR CFFANNEL CROSS SECTIONS 5 MIDDLE CONNECTOR CHANNEL CROSS SECTIONS e � GENERAL NOTES- a �� _ Y_ Cb ORDINATES ARE IN FEET BAS EO ON NORTH CARD LINA STA7 E PLANE COOR VIN ATE SYS'I"EMS NORTH AMERICAN � � o OATLM 1983� CNA093) u i_ � � 2_ ELEVATIONS ARE REFERENCED TO MLLW_ PERMITFEO OREIX'E OEPIH IS RELATIVE TO THE MLW DATUM BEING _ APPROXIMATELY 0.08' ABOVE MLLW PER NOAA PIO EX040O_ I�l e � s 3_ DATE OF AERIAL PHOTOGRAPHY[ CS-1� PV-1 ANO PV-2 FEB. 2037 C+OOGLE EARTH. 4_ SVRV EY DATA COLLECIEV 8Y VS ARMY CORPS OF ENGSNEERS_ 3AN VARY 1p� 2023_ S_ BATHYM ETiiIC OONTOURS REP£2-LriENT THE CON OITIONS OF THE CHANNEL ON 1ANUARY 30� 2023 ANO SHOULD NOT BE RE LiEO ON FOR NAVIGATZON PV RPOSES_ LEGEND HAT-03-V-18 l � = J c�zoss sEc_I-Iow LINE HATTERAS INLEF BORINGS 2UO3 AND IO SVSMERGEO AQ VATZC VEGETAT3ON ANO 100 FT_ BIJFEER NO -DREDGE AREA [300-FOOT BU FFERON CABLE CROSSING] AS BUILT EXISTING GABLE ROVTE [CALOWELL CABLE VENTV RES] EXISTING CABLE ROUTE <VT11TY ELELTR2G"AL CONSULTANTS PAC) ASBVSLT NEW CABLE ROUTE +O_52• MMW +o_ai• NAvoss - +o_os_ MLw- --+o_pp- MLLW---�---- TIOAL DATUM REFERENCE TIDAL OATVM REFERENCE BA=CEO ON NOAA TIDE STATION SV 8659167 EPOCH 1983-2p01- Cwaa' �I��i �g� _� 2 = FEssi--_4 � — s�� '�' _ ¢� = v --- as S � 045852 � _ g� �_-_ � �9� �� r-9 FT � iPR�� ...�. CS-'1 �c�� s o�1MLIC0 SOUND e e � V � �� '�' � � �� I� j CONNECTOR -� u u --_`_ _ CHANN€L CO RRI�OR sa �a no -- -- "' _ � �}.} �� HAT- / V-6 sf 3 - _ � PROPOSE[) CENTER __ � / � o_ S o m " � /CONNECTOR CHANNEL \ l_ HAT-D V-7 m m PROPOSED NORTH — _ ___ ------ X_ �" �_ _ L _ �__ _ CONNECTOR CHANNEL _____ �� -___ ��.T-03-V-9v L) � t '�� i �� `�' v ��M'- --� _ � -TEAT `03 -• Fl8 �s� o � � � a y 1«-_ __._ i_ ¢ : � a ---- _ _ CHARTED WRECK c ��`---___.._ _ - .� AVOxCANCE AREA tFQAT-03-V-10 HA-1- rE F2AS 's-' _ `— NO -DREDGE A(2EA (i OO-FOOT V-16 Q Q HAT-03-V- 11 s'x� �� BUFFER ON !_:ABLE GROSS�NGJ Q �_ �_ Q HAT- HAT-03-V -17 Q 03-V-12 O HAT-03-V-15O HAT-03-V-14 HAT-03-V-2H cf l _ �__z� _��' O = _ -V-18 - C ,i T��`� O HATTERAS -- b _ - j ��-��1.. riA=-o.3-v-i9 INLET - - � �� \ SfZJ�C f2AC0 KE �� 53JOnn ��/1 �i1i� - LIFE SAVING STAT20N `� O�Z H_ CqR ��_— AVO]L]ANCE AREA pF ES.S� O� �_�� __ Avoxos+.NCE AREA <��SEgL %F"—� �_ � f � -' � s (NOT CLEARED FOR CULTURAL RESOURCE57 04 $gs2 �A� Wag f - � � - .� � - - a� GINEER /i � o�€ o _ _ �J -a - NEA RSHORE OSS POSAL _ �� v�ovF ��`e. LO CATZON � � � S 53200n �ra� �� P��- 7 601-rOM OF Gll"r/CFNNNEL COORDINATE TABLE _ POINL IO EATING NORI"f1ING ELEVAI"ION - a 29GO393.42 v4.9843_42 -10.0 _ O 29GUB99_80 594689_00 - O_O 2960783_80 5_2t1 -10_O d 296 �L30.60 549618.78 -10.0 � c 2963928_67 S�I3687_�30 -f 0_O T 296383R.92 543212_73 -10.0 Q B 2964115 SA 54247>_ld 10.0 T 963928 67 542405.82 10_O - y � -i.E6� wO � 3098A2 -10_O = - gl v4358O_v9 -10_O _ _ �> , I� �_ _ � � �� l / ` PROPOSED NORTH � ` ' � --A - G�ONN EGTOR CHANNEL �l =l v� � �' �� __ - C ��_ Q \ � o _ _ -_ o _ � \ �' '-- ___ - JJ �,�}- 1 J J l J —J J —J J J J I - - J-�J—/-1.`J _ - J �=J —J —J —J Ji—" / f J J J — / — J — J — _-- -. � _ - � J J 1 J -- - - - - l J J J �J J / J " -�-- � - J J J J J J l J J �J J i CHANNEL _ .� {1I - -- - _- i � � �§ �� _ � o J—J—�- --�-�- . f -- e • 0 200 ��y p _ �R.,P..I�� - �_ � -- PRovosE_o CENTER � J �J—I—J J �`c�C FEss/v �/y ��_ -- J —c l / — l �_ J — SEAL �—i J �J / J J 04SSS2 r J.a �J l —J —J ��09 F_A.c�NEE� -� �5�� J 7` l J J �� y �`�` /—J —/ �i TAFT P�� J � / �/a��f�N - - � — , � —J - � _v _ �, _ _- _. �- �a az a gi �� / � a � s p �GJ _ - �_�� W � s�g NOTE'6 -- - �� S _ ELEVATIONS ARE REFE REN�O ZO Ml�_W_ mrvs �� YERMII"T EO OREIX'E UEPT-1 IS RELAT3VE TO P\/-2 _ _ _ THE MLW OATl3M BEING APPROXIMATELY O_08' ABOVE MLLW PER NOAA PIl1 EX0400. C o-o• 4 —4 —g —l2 —l6 —20 —24 c� z��r� r c�1. t�a� E-E• G• a �!! � �� L2/"1111�� = �� jj� —��i��s�� — l �00 � 0�00 l t00 NO DREDGE AREA � O.00 lLi —4.00 � Q Q 8_Q� �•• �12_00 � L' !l!l 2�00 3�00 4�00 CROSS SE[_TION O-O' c-c 5+00 6+00 �i-00 8-�00 DISTANCE ALONG SECTION (FEET) CENTER CONNECTOR CHANNEL_ CH _ MRw Ei. +osz _ --- _ - _-_ Iw EL_�o os �O• 3AN✓A RY 2023 - i"`� -EXSSTING �RADe 3Y\ �� 1 _ _ �1 J1 � � � N3J � �� TAi3f_�ET £L =-l0 -MLLW ' MAbM MAD BL=-11.92'MLLW o_oo � o_oo � —4.00 4.00 0 H_OO —8_00 Q 7 2_OO 1 2_�� '� C rill 9�00 10�00 '1 5 �00 12�00 13�0 CRO55 SECT"ION E-E' c-c VV M Lw EL_w.{os ' � � � ______I.—_ __.___ 1AN✓AR� `O� 2023 Exzs-r-iN � -.aAOE 3 �; '. _J_ 31 � N2� TARGET EL =-�O. MILW MAJUMiJM AO EL. _ -1 l _92 MLLW �� 8 —24 � _ 4 —oz p W —q � •� —8 � �_ l2 0 — Sy —16 6 u �� —Zp � Y e �� O 14w0p 15�p0 (j o` e3 S •��cH �qR i� �_-�Q-_4E ssjp�__ �� _ SEAL ,�{u`'� i Q4885 �2� _�r� T� %�O _ FNGIN _ E�-= _ �� S I� 4�9 TR FT PR��` ��'� 4_00111111� 0.00 4_00 8_�� 1 2.�� v vvl 50 "100 50 OL 50 l00 l SO v_vv v_vV l SO —1 QO —SO � v_v� OL SO l OO l SO DISTANCE ALONG SECTION (FEET] DISTANCE ALONG SECTEON (FEET) ♦_ TIpNS ARE REF E3zv-�c_ED To M�_Lw8 RMra TED DREDGE O LATIVE TO T"1-fE MLW OATIJM EING APPROXIMATELY OB' ABOVE MLLW PER NOAA PO EJCOg00 2 MVM AO EL_OF-tS_92M OIV GRDSS SEGTlONS IS EQ✓AL TO-l2_�O' MLW P