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HomeMy WebLinkAbout20180944 Ver 2_PCN Form Submission_20190912DR 02*10n of Water R"Ourc" Pre -Construction Notification (PCN) Form September 29, 2018 Ver 3 Initial Review Has this project met the requirements for acceptance into the review process?* r Yes r No Is this project a public transportation project?* r Yes r No Change only if needed. BIMS # Assigned * Version#* 20180944 2 Is a payment required for this project?* * No payment required What amout is owed?* * Fee received r $240.00 r Fee needed - send electronic notification r $570.00 Reviewing Office* Select Project Reviewer* Central Office - (919) 707-9000 Paul Wcjoski:EADS\pawnjoski Information for Initial Review 1a. Name of project: Bogue Banks Master Beach Nourishment Plan - Post -Florence Phase II 1a. Who is the Primary Contact?* Dawn York 1 b. Primary Contact Email:* dyork@moffattnichol.com Date Submitted 9/12/2019 Nearest Body of Water Atlantic Ocean Basin White Oak Water Classification SB Site Coordinates Latitude: 34.674547 A. Processing Information County (or Counties) where the project is located: Carteret Is this project a public transportation project?* r Yes r No Longitude: 76.952633 1a. Type(s) of approval sought from the Corps: V Section 404 Permit (wetlands, streams and waters, Clean Water Act) V Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act) 1 b. What type(s) of permit(s) do you wish to seek authorization? f- Nationwide Permit (NWP) * Regional General Permit (RGP) r- Standard (IP) 1c. Primary Contact Phone:* (910)218-7087 1c. Has the NWP or GP number been verified by the Corps? r Yes r No Regional General Permit (RGP) Number: RGP Numbers (for multiple RGPS): 1d. Type(s) of approval sought from the DWR: P 401 Water Quality Certification - Regular F Non -404 Jurisdictional General Permit F Individual Permit 198000291 - CAMA (NC Coastal Area Management Act) 1e. Is this notification solelyfor the record because written approval is not required? For the record only for DWR 401 Certification: For the record only for Corps Permit: F 401 Water Quality Certification - E)press F Riparian Buffer Authorization 1f. Is this an after -the -fact permit application?* r Yes r No 1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No 19. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No Acceptance Letter Attachment 1h. Is the project located in any of NC's twenty coastal counties? r Yes r No 1i. Is the project located within a NC DCM Area of Environmental Concern (AEC)? O Yes r No r Unknown 1j. Is the project located in a designated trout watershed? r Yes r No B. Applicant Information 1d. Who is applying for the permit? F Owner W Applicant (other than owner) 1e. Is there an Agent/Consultant for this project? r Yes r No 2. Owner Information 2a. Name(s) on recorded deed: Carteret County Shore Protection Office 2b. Deed book and page no.: 2c. Responsible party: 2d. Address Street Address P.O. Box4297 Address Line 2 aty Emerald Isle Fbstal / Zip Code 28594 2e. Telephone Number: (252)222-5835 2g. Email Address:* grudolph@carteretcountync.gov 3. Applicant Information (if different from State / Rovince / R�gim North Carolina Country USA 2f. Fax Number: r Yes r No rYes rNo 3a. Name: Greg L. Rudolph 3b. Business Name: Carteret County Shore Protection Office 3c.Address Street Address P.O. Box 4297 Address Line 2 City Emerald Isle Postal / Zip Cork 28594 3d. Telephone Number: (252)222-5835 3f. Email Address:* grudolph@carteretcountync.gov C. Project Information and Prior Project History 1. Project Information 1b. Subdivision name: (d appropriate) 1c. Nearest municipality/ town: Emerald Isle, Indian Beach, Salter Path, Pine Knoll Shores, and Atlantic Beach 2. Project Identification 2a. Property Identification Number: 2c. Project Address Street Address Bogue Inlet to Atlantic Beach Address Line 2 City Postal / Zip Code 3. Surface Waters 3a. Name of the nearest body of water to proposed project:* Atlantic Ocean 3b. Water Resources Classification of nearest receiving water:* SB 3c. What river basin(s) is your project located in?* White Oak 3d. Please provide the 12 -digit HUC in which the project is located. 030203010305 and 030203010705 4. Project Description and History State / Row ce / Region North Carolina Country USA 3e. Fax Number: 2b. Property size: State / Rovince / Region Country 4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:* The Post -Florence Beach Nourishment Project (Phase 1) was completed just over 4 months ago, which included a dune feature and placed 945,446 cubic yards of sand along eastern Emerald Isle and Indian Beach/Salter Path (5.2 miles). Additionally, +350,000 sea oats were planted along the dune crest (flat top of dune) and the dune slope. The project area is used as a public recreational beach and serves to protect infrastructure. 4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past? F Yes r No r Unknown 4c. If yes, please give the DWR Certification number or the Corps Action ID (exp. SAW -0000-00000). DWR#2018-0944 Project History Upload 20180944 Bogue Banks Master Nourishment Plan and Project 1 - 401 Certification - 08.31.2018.pdf 3.41 MB bogue banks master permit.91-18-09042018110431.pdf 4.7MB 4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR) 4e. Attach an 8 1/2 X11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR) 4f. List the total estimated acreage of all existing wetlands on the property: NA 4g. List the total estimated linear feet of all existing streams on the property: NA 4h. Explain the purpose of the proposed project:* The Carteret County Master Beach Nourishment Plan employs a regular and recurring cycle of nourishment events to continuously maintain beach profile sand volumes along 7 managed reaches (Bogue Inlet, Emerald Isle West, Emerald Isle Central, Emerald Isle East, Indian Beach/Salter Path, Pine Knoll Shores, and Atlantic Beach). Nourishment events would be implemented according to 25 -year level of protection (LOP) beach profile volumetric triggers, ranging 211-266 cubic yards per foot along various reaches of the approximately 23 -mi project shoreline. Maintenance of the 25 -year LOP beach profile volumes along the management reaches, which equates to protection for upland structures against a 25 -year storm event, would involve: 1) regular recurring "maintenance" nourishment events to offset long-term, chronic background erosion (including hotspot erosion), and 2) periodic "storm response' nourishment events to offset sand losses incurred during hurricanes or major storm events. The individual management reaches are expected to require recurring maintenance sand placements at varying intervals to offset chronic background erosion. Each individual nourishment event will be unique based on various factors, including storm related erosion. 41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:* The Post -Florence Renourishment Project — Phase II will take place during the winter 2019/2020 (base project) and winter 2020/2021 (option project) construction windows (November 16 — April 30). Due to funding constraints (currently awaiting award of FEMA reimbursement) and total project volume required to make up for losses from Hurricane Florence, it is anticipated that construction will require two dredging windows to complete. The total project calls for 4,221,900 cy of material to be placed along 21 miles of oceanfront shoreline, spanning 10 nourishment reaches in Emerald Isle, Indian Beach, Salter Path, Pine Knoll Shores, and Atlantic Beach. Approximately 5,066,280 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses (20%) between dredging and placement. The attached event notification presents an overview of the total project extents, reach locations, reach lengths, volumes, and borrow area location. The "Base" project, to be constructed during winter 2019/2020, consists of 1,995,000 cy of material to be placed along 9.5 miles of shoreline. The "Option" project, to be constructed during winter 2020/2021, consists of 2,226,900 cy of material to be placed along 11.5 miles of shoreline. Project plans are provided in Attachment A. Slight adjustments in volume may be made prior to construction based on bid prices and pre -construction surveys. These adjustments could raise the project volume by up to 20%. These adjustments will be discussed in the pre - construction meeting with State and Federal agency representatives. Plans call for a base project to be constructed during the winter 2019/2020 dredging window consisting of 1,995,000 cy of material to be placed along 9.5 miles of shoreline consisting of four nourishment reaches in Emerald Isle (Reach 2), Salter Path (Reach 7), Pine Knoll Shores (Reach 9), and Atlantic Beach (Reach 10). The average fill density will range from 35 — 40 cy/ft across each of the four reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the landward dune tie in will be constructed to tie in at the dune crest elevation. In cases where the existing vegetation line is belowthe dune crest, the landward dune tie in will be constructed with a 5:1 back slope down to the existing vegetation elevation. A seaward 5:1 dune slope will be constructed from the dune crest down to a berm of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. A 20:1 berm slope will be constructed down to tie in with the existing ground offshore between elevation -4 and -10 ft NAVD88. Approximately 2,394,000 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses between dredging and placement (20%). The option project will be constructed during the winter 2020/2021 dredging window pending receipt of reimbursement funds from FEMA. The option project consists of 2,226,900 cy of material to be placed along 11.5 miles of shoreline consisting of six nourishment reaches in Emerald Isle (Reach 1, Reach 3, Reach 4, and Reach 5) and Indian Beach/Salter Path (Reach 6 and Reach 8). The average fill density will range from 30 — 45 cy/ft across each of the six reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template in Reaches 1, 3, and 4 will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the landward dune tie in will be constructed to tie in at the dune crest elevation. In cases where the existing vegetation line is below the dune crest, the landward dune tie in will be constructed with a 5:1 back slope down to the existing vegetation elevation. A seaward 5:1 dune slope will be constructed down to a berm of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. A 20:1 berm slope will be constructed down to tie in with the existing ground offshore between elevation -4 and -10 ft NAVD88. The dune in Reaches 5, 6, and 8 was previously constructed during the Post -Florence enourishment Project — Phase I (winter 2019). Therefore, these reaches will consist of a berm only extension of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. Approximately 2,672,280 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses between dredging and placement (20%). As shown in the attached plans and event notification, Figure 1-2 through Figure 1-5 present typical cross-section and plan views for the areas to be nourished during the Post - Florence Renourishment Project — Phase II. Figure 1-2 presents typical cross sections for reaches where a dune and berm are to be constructed (Reaches 1, 2, 3, 4, 7, 9, and 10). Figure 1-3 presents a typical cross section for reaches where only a berm is to be constructed (Reaches 5, 6, and 8). These typical cross section and plan views were developed based on the newest May 2019 survey data. Slight adjustments in the design template may be made prior to construction based on bid prices and pre -construction surveys. These adjustments will be discussed in the pre -construction meeting with State and Federal agency representatives. The Post -Florence Renourishment Project — Phase II to be performed in Winter 2019/2020 and Winter 2020/2021 will use a hopper dredge to obtain material from the Current and Old ODMDS where it will then be transported to an offshore temporary mooring and submerged pipeline near the project site. A pre -construction survey of the submerged pipeline crossing Will be provided to state and federal agencies prior to construction. The hopper dredge will then connect to the pipeline and pump the material from the hopper to the beach where the sand is spread mechanically by bulldozers. This is the same type of dredging placement operation used during the Phase I project (2019) as well as multiple historical projects (Phase 1 and 2 of the Bogue Banks Beach Nourishment Project (2001/2002 and 2002/2003), Post-Ophelia (2007) and Post -Irene (2013)). 4j. Please upload project drawings for the proposed project. Bogue Banks Ph2 Add 1 Half - Signed.pdf 26.17MB 5. Jurisdictional Determinations 5a. Have the wetlands or streams been delineated on the property or proposed impact areas?* (' Yes Comments 6 No 5b. If the Corps made a jurisdictional determination, what type of determination was made?* r Preliminary f Approved r Not Verified r Unknown F WA Corps AID Number: 5c. If 5a is yes, who delineated the jurisdictional areas? 4 Unknown Name (if known): Agency/Consultant Company: Other: 5d1. Jurisdictional determination upload 6. Future Project Plans 6a. Is this a phased project?* R Yes O No 7b. If yes, explain. Nourishment events would be implemented according to 25 -year level of protection (LOP) beach profile volumetric triggers, ranging 211-266 cubic yards per foot along various reaches of the approximately 23 -mi project shoreline. Maintenance of the 25 -year LOP beach profile volumes along the management reaches, which equates to protection for upland structures against a 25 -year storm event, would involve: 1) regular recurring "maintenance" nourishment events to offset long-term, chronic background erosion (including hotspot erosion), and 2) periodic "storm response" nourishment events to offset sand losses incurred during hurricanes or major storm events. The individual management reaches are expected to require recurring maintenance sand placements at approximate intervals of 3 years (Emerald Isle East), 6 years (Pine Knoll Shores, Indian Beach/Salter Path, Bogue Inlet), and 9 years (Emerald Isle Central, Emerald Isle West) to offset chronic background erosion. Each individual nourishment event will be unique based on various factors; however, based on current projections and timelines, the range of days per event could be 50-250 days with most events being 100-150 days. Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity? No D. Proposed Impacts Inventory 1. Impacts Summary 1a. Where are the impacts associated with your project? (check all that apply): F Wetlands ❑ Streams -tributaries W Open Waters ❑ Pond Construction 4. Open Water Impacts F Buffers 4a. Sited# 4a1. Impact Reason 4b. Impact type 4c. Name of waterbody 4d. Activity type 4e. Waterbody type 4f. Impact area 1 Dredge and fill T Atlantic Ocean Dredging Ocean 773.00 4g. Total temporary open water Impacts: 773.00 4g. Total open water impacts: 773.00 4g. Total permanent open water impacts: 0.00 4h. Comments: The borrow area is the same as was used for the Post -Florence Renourishment Project — Phase I (spring 2019). The borrow area covers approximately 773 acres, with 218 acres located in the Current ODMDS in Federal waters and 555 acres located in the Old ODMDS in State waters. Based on the after dredge survey taken in May 2019, there is approximately 10,772,643 cy of beach compatible material remaining above -52 ft NAVD88 within the borrow area which is permitted for a maximum dredge depth of -50 ft NAVD88 with 2 ft allowable overdredge. Approximately 8,197,365 cy of material is available in the State-owned portion of the borrow area and approximately 2,575,278 cy of material is available in the BOEM controlled Federal portion of the borrow area. Figure 1-6 presents the current borrow area bathymetry and available volumes. It should be noted that the County's BOEM lease agreement allows for the dredging of 2,000,000 cy of material over a 3 -year period that began with the construction of the Post -Florence Renourishment Project — Phase I in spring 2019. Based on before and after dredge surveys, it is estimated that only 136,449 cy of material was dredged from Federal waters during the Phase I project, leaving approximately 1,863,550 cy of material available for use during the Post -Florence - Phase II project. E. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project: The Post -Florence Renourishment Project — Phase II is a continuation of the first project (Post - Florence Renourishment Project — Phase 1) completed under the Bogue Banks Master Beach Nourishment Plan. Pursuant to the National Environmental Policy Act (NEPA), the environmental effects of implementing the Bogue Banks Master Beach Nourishment Plan have been evaluated in an Environmental Impact Statement (EIS). The Final EIS (FEIS) was distributed to state and federal agencies and a Record of Decision issued in 2018. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques: Permit conditions include dredge window restrictions, dredge cut depth restrictions, sediment compatibility, and endangered species takes. Measures will be taken by the engineer and contractor to meet each of these requirements. Beach construction and use of heavy equipment on the beach will be limited to the November 16 — April 30 time period for placement of beach material. Dredging in the borrow area will not exceed -52 ft NAVD88. Plans and specifications will indicate a maximum dredge depth of -50 ft NAVD88 plus 2 ft allowable overdredge. The large borrow area, containing ample material, will keep individual dredge cut depths to a minimum. The maximum dredge cut for the Post -Florence Renourishment Project - Phase I was approximately 7-8 ft and that is expected to remain for the Phase II project. In addition, undisturbed areas will be left to allow for recovery of benthic resources. Weekly sediment sampling will be performed by a third party laboratory analysis to ensure grain size and color are beach compatible. Daily onsite visual assessment of sediment compatibility will also be conducted by the contractor. The County may require relocation trawling for the entire length of the project regardless of whether the mandatory trawling triggers have been met (i.e. water temperature, lethal take). Endangered species monitoring will be implemented on both the dredge and the trawler, when working, for the entire length of the project. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? r Yes r No 2b. If this project DOES NOT require Compensatory Mitigation, explain why: Impacts have been deemed temporary. F. Stormwater Management and Diffuse Flow Plan (required by DWR) - 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules? r Yes r No If no, explain why: Project area is adjacent to the Atlantic Ocean 2. Stormwater Management Plan 2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?* r Yes r No 2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)? r Yes r No 2c. Does this project have a stormwater management plan (SMP) reviewed and approved under a state stormwater program or state -approved local government stormwater program? r Yes r No 3. Storrawater Requirements 3a. Select whether a completed stormwater management plan (SMP) is included for review and approval or if calculations are provided to document the project will not cause degradation of downstream surface waters.* f Stormwater Management r Antidegradation Plan Calculations 3b. Stormwater Management Plan 3c. Antidegradation Calculations: Comments: Turbidity along the nearshore shall not exceed the turbidity standard of 25 NTUs (Nephelometric Turbidity Units) as described in 15A NCAC 0268.0200. Temporary longitudinal (shore - parallel) control dikes shall be constructed of beach fill material as close to the shoreline as practical and in a manner that requires the effluent water to travel a sufficient distance to minimize turbidity prior to returning to the waters of the Atlantic Ocean The turbidity shall be visually monitored daily and shall be documented in the QC report that it is within the standard. R the turbidity levels appear to exceed the standard, then a water sample shall be taken 500 feet downstream of the mixing zone. If an exceedance occurs, then operations should be modified to avoid further exceedance. The Contractor shall monitor any in -water dredge pipelines used during the construction activities, in order to check for potential leaks, which may emanate from the pipeline couplings. All dredge and fill activities shall cease if leaks are found. Operations may resume upon appropriate repair of affected couplings, or other cause of the leak. G. Supplementary Information 1. Environmental Documentation 1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?* r Yes r No 1b. 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 (North Carolina) Environmental Policy Act (NEPA/SEPA)? * r Yes r No Comments:* The following state and federal permits/agreements have been issued for the Bogue Banks Master Beach Nourishment Plan: 0 The NC Division of Coastal Management issued CAMA Major Permit #91-18 dated September 4, 2018. 0 USACE Action ID No. SAW -2009-00293 dated November 8, 2018 (50 -yr permit). 0 NMFS issued Biological Opinion SER -2017-18882 dated October 23 2018. 0 BOEM issued Lease Authorization Agreement No. OCS-A 0523 dated February 21, 2019. (3 -Yr Lease Agreement) 0 FWS Statewide Programmatic Biological Opinion Conditions for beach placement will be instituted. 2. Violations (DWR Requirement) 2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 21-1.1300), or DWR Surface Water or Wetland Standards or Riparian Buffer Rules (15A NCAC 2B .0200)?* r Yes r No 3. Cumulative Impacts (DWR Requirement) 3a. Will this project result in additional development, which could impact nearby downstream water quality?* r- Yes r No 3b. If you answered "no," provide a short narrative description. The project will not result in additional development on the oceanfront. 4. Sewage Disposal (DWR Requirement) 4a. Is sewage disposal required by DWR for this project?* rYes r- Nor WA 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or habitat?* r Yes r- No 5b. Have you checked with the USFWS concerning Endangered Species Act impacts?* r Yes r No 5c. If yes, indicate the USFWS Field Office you have contacted. Raleigh 5d. Is another Federal agency involved?* r Yes r- No What Federal Agency is involved? BOEM, USACE, NMFS, USFWS, USCG Se. Is this a DOT project located within Division's 1-8? r Yes r No 5f. Will you cut anytrees in order to conduct the work in waters of the U.S.? r- Yes r No 5g. Does this project involve bridge maintenance or removal? r Yes r No 5h. Does this project involve the construction/installation of a wind turbine(s)?* r Yes r No r Unknown 5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.? r Yes r No 5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? FWS staff, NMFS staff, BOEM staff, Natural Heritage Program, etc. Consultation Documentation Upload SER -2017-18882 Bogue Banks Master Beach Nourishment Plan_final.pdf 1.54MB Service to FWS Bogue Banks 50 yr plan BA 20171005.pdf 101.79KB 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as an Essential Fish Habitat?* r Yes r No Are there submerged aquatic vegetation (SAV) around the project vicinity?* r Yes r No r Unknown 6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?* NMFS staff and data sources 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?* r Yes r No 7b. What data sources did you use to determine whether your site would impact historic or archeological resources?* SHPO concurrence 7c. Historic or Prehistoric Information Upload 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA -designated 100 -year floodplain?* r Yes r No 8b. If yes, explain how project meets FEMA requirements: FEMA engineered beach designation 8c. What source(s) did you use to make the floodplain determination?* https://vmw.fema.gov/flood-zones Miscellaneous Comments Event Notification and Dune Planting procedures attached Miscellaneous attachments not previously requested. MBNP PostFlorence Phase II Event Notification FINAL.pdf Attachment B - Typical Dune Planting Procedures.pdf Signature * V By checking the box and signing below, I certify that: 7.54MB 71.35KB • I have given true, accurate, and complete information on this form; • I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act'); • I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act'); • I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND • I intend to electronically sign and submit the PCN form. Full Name: Dawn York Signature O q� Date 9/12/2019 Shore Protection Manager Greg L. Rudolph Tel: (252) 222.5835 Fax: (252) 222.5826 grudolph@c arteretcountync.gov September 12, 2019 Division of Water Resources S410re protection office votecttheheach.corn NC Department of Environmental Quality 127 Cardinal Drive Extension Wilmington, North Carolina 28405 RE: Bogue Banks Master Beach Nourishment Plan, Post -Florence Phase II, Carteret County Authorized Agent Agreement To Whom it May Concern: This is to inform you that Moffatt and Nichol is the Authorized Agent for the above -referenced project. Moffatt and Nichol is authorized to act on behalf of the applicant, Carteret County Shore Protection office, on and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. We appreciate your review of these materials and proceeding as efficiently as possible. Please contact me at 252-222-5835 or Dawn York at 910-218-7087 with any questions. RCessppectf�u l lyy,,j� Greg "rudi" Rudolph Shore Protection Manager Shore Protection Office • P.O. Box 4297 • Emerald Isle, North Carolina 28594 www. protect the beach. com Permit Class NEW STATE OF NORTH CAROLINA Department of Environmental Quality and Coastal Resources Commission trmt"t for X Major Development in an Area of Environmental Concern pursuant to NCGS 113A-118 X Excavation and/or filling pursuant to NCGS 113-229 Issued to Carteret County, PO Box 4297, Emerald Isle, NC 28594 Permit Number 91-18 Authorizing development in Carteret County at Bogue Inlet and Atlantic Ocean, Ocean Beaches from Bogue Court to Tar Landing Road , as requested in the permittee's application dated 5/25/18 (MP -1 & MP-2/Project #1), & 4/6/18 (MP -2/50 -yr Project), including attached workplan drawings (84), as referenced in Condition No. 1 below. This permit, issued on September 4, 2018 , is subject to compliance with the application (where consistent with the permit), all applicable regulations, special conditions and notes set forth below. Any violation of these terms may be subiect to fines, imprisonment or civil action; or may cause the permit to be null and void. Bop,ue Banks Master Beach Nourishment Plan (BBMBNP) 1) Unless specifically altered herein, all development shall be carried out in accordance with the attached workplan drawings (84), labeled Typical Plan View Sheets 1-7 of 7, Typical Cross Section View Pages 1-16 of 16, dated 7/10/14, and Project 1 Plans labeled Sheets 1-61, all dated May 2018 and Received DCM Wilmington 617/18; permit narrative dated Received DCM Wilmington 6/4/18; and AEC Hazard Notice dated 5/9118. 2) In order to protect threatened and endangered species and to minimize adverse impacts to offshore, nearshore, intertidal and beach resources, no excavation, fill or beach nourishment activities, including mobilization and demobilization, shall occur from May 1 to November 15 of any year without prior approval from the Division of Coastal Management in consultation with the appropriate resource agency personnel, and subject to Condition No. 3 below. (See attached sheets for Additional Conditions) This permit action may be appealed by the permittee or other qualified persons within twenty (20) days of the issuing date. This permit must be accessible on-site to Department personnel when the project is inspected for compliance. Any maintenance work or project modification not covered hereunder requires further Division approval. All work must cease when the permit expires on December 31, 2021 Signed by the authority of the Secretary of DEQ and the Chairman of the Coastal Resources Commission. 7 Fvtc Braxton C. Davis, Director Division of Coastal Management This permit and its conditions are hereby accepted. in issuing this permit, the State of North Carolina agrees that your project is consistent with the North Carolina Coastal Management Program. Signature of Permittee Carteret County/Bogue Banks Master Plan Permit No. 91-18 Page 2 of 5 ADDITIONAL CONDITIONS 3) In addition to the timing restrictions referenced in Condition No. 2 above, and in order to protect threatened and endangered species within the inlet complex, no fill or beach nourishment activities, including mobilization and demobilization, shall occur from April 1 to April 30 of any year at or adjacent to Bogue Inlet without prior approval from the Division of Coastal Management, in consultation with the appropriate resource agency personnel. 4) Excavation for each event shall in no case exceed that shown on the approved project workplan drawings. 5) All excavation shall take place entirely within the areas indicated on the approved workplan drawings. 6) In order to prevent leakage, dredge pipes shall be routinely inspected. If leakage is found and repairs cannot be made immediately, pumping of material shall stop until such leaks are fixed. Beach Nourishment 7) This permit authorizes beach nourishment activities to be carried out in accordance with the projected intervals and volumes as stated in the application. Any request to carry out additional activities not referenced in the attached application may require a modification of this permit. 8) Prior to initiating any project shoreline protection activities specified in the BBMBNP, a notification request shall be submitted to Division of Coastal Management (DCM) for prior approval. This notification must provide a full and complete project event description, including but limited to, justification/need for the project and how it correlates with the BBMBNP's assumptions, construction footprints, construction methods and timeframes, borrow source(s), dredging dimensions, beach placement amounts and profiles, and- exact reach dimensions/location(s). A cumulative summary of all events completed to the date of submittal under the BBMBNP must be included in the notification to keep a historic record over the 50 -year period. The summary must provide a list of all past events that includes the following: Start/end timeframes, placement footprints, dredging footprints, and volume amounts. This notification shall also include full documentation demonstrating that the proposed project's sand source(s) complies with 15A NCAC 07H.0312 (Technical Standards for Beach Fill Projects), as well as any other applicable rules at the time of submittal. This notification shall be submitted a minimum of 30 days prior to anticipated initiation of construction. DCM concurrence with the proposed event shall be obtained prior to the initiation of the authorized activity. NOTE: The notification requirements of Condition No. 8 have been satisfied through the initial permit application review process for Project No. 1. NOTE: The permittee is advised that future event approvals may be subject to additional conditions. 9) Prior to initiation of each beach nourishment activity along each section of beach, the existing mean high water line shall be surveyed, and a copy of the survey provided to the Division of Coastal Management. Carteret Coudy/Bogue Ranks Master Plan Permit No. 91-18 Page 3 of 5 ADDITIONAL CONDITIONS NOTE: The permittee is advised that the State of North Carolina claims title to all currently submerged lands and any future lands that are raised above the mean high water level as a result of this project. 10) Prior to the initiation of any single event that is considered by the rules of the Coastal Resources Commission to be a large-scale beach nourishment activity (currently defined as any volume of sediment greater than 300,000 cubic yards), the permittee shall coordinate with the Division of Coastal Management to determine if an additional static vegetation line(s) shall be required. Any new static vegetation line(s) shall be used as the reference point for measuring future oceanfront setbacks. The static vegetation line, which. is defined as the vegetation line that existed within one year prior to the onset of initial project construction, shall be established using on -ground observation and survey or aerial imagery. The static vegetation line(s) shall then be marked and a survey depicting this static vegetation line(s) shall be submitted to the Division of Coastal Management prior to any large-scale beach nourishment activities. 11) The seaward nourisbrrnent limit shall be constructed in accordance with approved work plats. 12) Prior to the initiation of any beach nourishment activity on a specific property, easements or similar legal instruments shall be obtained from the impacted property owner(s). 13) Should excavation operations encounter sand deemed non -compatible with 15A NCAC 07H .0312 (Technical Staudards 1ior L3each Fill Projects), the contractor shall immediately cease operation and contact the Division of Coastal Management. Operations shall resume after resolution of the issue of sand compatibility 14) In order to ensure compliance with Condition No. 13, the permittee shall ensure that an inspector is present during all Teach disposal. activities and immediately report to DCM in the event any incompatible material is placed on the beach. During operations, material placed on the beach shall be inspected daily to ensure compatibility. 15) Any sediment sample monitoring, dredging or as -built surveys required by the USACE shall also be provided to DCM. 16) The permittee shall provide written notification of project completion to DCM within one (1) week upon completion of each event authorized by this permit. 17) Land-based equipment necessary for beach nourishment work shall be brought to the site through existing accesses. Should the work result in any damage to existing accesses, the accesses shall be restored to pre -project conditions immediately upon project completion in that specific area. NOTE: The permittee is advised that any new access site would require a modification of this permit. 18) Prior to any nourishment activities occurring between April 1 and October 31 of any year, the Division of Marine Fisheries, Shellfish Sanitation Section shall be notified so that any necessary swimming advisories may be posted. Carteret County/Bogue Banks Master Plan Permit No. 91-18 Page 4 of 5 ADDITIONAL CONDITIONS 19) Dune disturbance shall be kept to a minimum. Any alteration of existing dunes shall be coordinated with the Division of Coastal Management as well as the appropriate property owner(s). All disturbed areas shall be restored to original contours and configuration and shall be revegetated immediately following project completion in that specific area. 20) Where oceanfront development exists at elevations nearly equal to that of the native beach, a low protective dune shall be pushed up along the backbench to prevent slurry from draining towards the development. 21) Once a section. is complete, a]I heavy equipment shall be removed or shifted to -a new section and the . area graded and dressed to final approved slopes., 22) This permit does, not authorize any permanent or long-term interference with the public's right of access and/or usage of all State lands and waters. 23) The authorized project shall not interfere with the public's right to free navigation on all navigable waters of the United States. No attempt shall be made by the permittee to prevent the full and free use by the public of all navigable waters at or adjacent to the authorized work for reason other than safety. 24) 25) .26) Project No 1 Conditions E'xcavation.for Project No. 1 shall not exceed -50' NAVD88. (with a maximum 2' overdredge allowance). All excavation shall take place entirely within the areas indicated on the attached workplan drawings for Project No. 1. In addition to Conditions 24 and 25 above, the pennittee.shall adhere to all permit conditions listed herein duringconstruction of Project No. 1. General 27Y. The permittee shall obtain any necessary authorizations or approvals from the U.S. Army Corps of Engineers' and N.C. Division:ofWater Resources prior to initiation of any permitted activity. Unless altered by a specific Condition of this permit, the permittee shall adhere to all conditions on the Federal approval and 401 certification, 28) Throughout the duration of the permit, should there be significant differences in projected volumetric thresholds, project scheduling, or other significant changes compared to the assumptions made as.part of the initial permit application and Environmental Impact Statement, the Division of Coastal Management reserves the right to reinitiate review through the permit modification process. 29) If, at.any time, the Bogue Banks 50 -year Coastal Storm Damage Reduction (CSDR) Federal Project is fianded and the permittee chooses -to participate in the CSDR project, the permittee shall notify DCM of their participation in the federal project. Participation in the CSDR project may require a modification of this permit. Carteret County/Bogue Banks Master Plan Permit No. 91-18 Page 5 of 5 ADDITIONAL CONDITIONS 30) This permit shall not be assigned, transferred, sold, or otherwise disposed of to a third party without the written approval of the Division of Coastal Management. 31) The permittee and his contractor shall schedule a pre -construction conference with the Division of Coastal Management and the U.S. Army Corps of Engineers prior to the initiation of any activities authorized by this permit. 32) Unless specifically altered herein, the permittee shall implement all mitigation and monitoring commitments made in the permit application and the Environmental Impact Statement: . 33) No sand shall be placed on any sand bags .that have .been determined by the Division of Coastal Management to be subject _to removal under 15A NCAC 07H .0308(a)(2). In order to ensure. compliance with this- condition, the Division of Coastal Management shall be contacted at (910) 796-- 7302 prior to initiation of each event so that Division staff may meet on site with the permittee and/or contractor. NOTE: The permittee is advised that the Division of Coastal Management shall regulate the removal -of existing sandbags and the placement of new sandbags in accordance with 15A NCAC 07H .0308(a)(2), or in accordance with any variances granted by the N.C. Coastal Resources Commission. 34) The N.C. Division of Water Resources has assigned the proposed project DWR Project .No. 20180944 and is authorizing under Certification No. WQC004169. Any violation of the Water Quality Certification 1-1hall also be considered a violation of this CAMA Permit. NOTE: The permittee's contractor is advised to contact the U.S. Coast Guard at (910) 815-4895, ext. 108 to discuss operations and appropriate lighting, markers, etc. for all dredge equipment. ..:NOTE: This permit does not eliminate the need to obtain any additiorial state, federal or local permits, approvals or authorizations that may be required. NOTE: Should disturbance landward of the first line of stable, natural vegetation exceed 1 acre in area, = an Erosion acid Sedimentation..Control Plan may be required for this project. This plan must be filed at least thirty (30) days prior to the beginning of any land disturbing activity. Submit this plan to the Department of Environmental Quality, Land Quality Section, 127 Cardinal :Drive Extension, Wilmington, NC 28405. _NOTE: The U.S. Army Corps of Engineers assigned the proposed project COE Action Id. No. SAW 2009-002.93. NOTE: An application processing fee of $475 was received by DCM for this project. This fee also satisfied the Section 401 application processing fee requirements of the Division of Water Resources for Project No. 1. ATTACHMENT B Typical Dune Planting Procedures Dune Planting Operational Plan Post -Florence Renourishment Project — Phase II Planting Project Schedule: Dune planting is highly dependent upon weather conditions for new plants and time to allow newly pumped beach sands to wash free of salts prior to planting starting. This requires a fair amount of rain to wash the newly placed material to reduce the amount of natural sea salts in the material when pumped ashore using ocean water. The daily hours of operation on the beach will begin once the permitted turtle monitor provides clearance of the beach and specific work footprint locations for the day. The turtle survey generally finishes at a set time daily (typically by 7:30 am) depending on the locale and local volunteers, first point of entry on the beach will be 30 minutes after patrols are completed. 8 am is generally a practical time to show up and expect turtle coordination and communication to be complete. The day generally lasts 8 to 10 hours, but equipment and personnel will be off the beach before dusk. Typical Equipment: Hand flantiLig 0Aerations Tractor- John Deere 5085 or equivalent Wagon — 1,000 -gallon nurse tank with pump Hoses - Typical 5/8" garden hoses Pipe - 3/4 inch pipe with water valve ATV/light-weight pickup truck Mechanical flantiLig 0Aerations Tractor - John Deere 5085 or equivalent with mounted water tank Planter - Mechanical Transplanter 580 (2 row machine) Typical Daily Routine of Operations: Once the all clear is given from turtle patrol staff will enter the beach with the equipment planned to be used for the while day of work. The tractor drives as close to; or in wet sand, by the water, until reach the planting site (footprint) for the day. Typical driving speed is less than 5 MPH for public safety. A company 4x4 truck or ATV travels in front of the tractor approximately 100-200 feet ahead of the work vehicles, to shuffle tourists and property from the path of the tractor, and to look for hazards, such as holes dug by tourist, possible false crawl turtle tracks, escarpments, etc. Once adjacent to the work area, the upper dune is accessed using the shortest possible lateral distance to the dune, to limit creating ruts in soft sand or damaging the slope of the dune face. Once on the dune with the mechanical transplanter or other hand planting equipment, all equipment will stay on the dune until operations are finished for the day. The equipment will then be moved off the beach in the afternoon following the same procedure as entry and exit at the closest access to the work. All equipment will be stored off beach during periods of weather or non -planting (night). If hand planting, the tractor and water wagon will arrive and traverse the beach, as discussed above, but at the work area, will stop within 20 feet of the toe of the dune, or wherever tourist and tents allow, but always greater than 20 feet. The watering hoses are then able to be utilized 100 feet to the front of tractor, and 100 feet to the rear of wagon, so basically planting can cover this 200 -foot area, where water can be supplied during planting. This 200 -foot watering step set continues until complete with a planting footprint. Once complete in that area then the tractor pulls forward another 200 foot and the process start again. If the water tank runs out of water the tractor and wagon exit the beach, as it entered, and re -fills and returns the same as previous ingress and egress. At the end of the day the tractor and water wagon, as well as all other planting equipment are stored off beach at night. Mechanical Transplanter Operations: The transplanter is pulled by the tractor, same as the water tank, down the beach and mechanically places a plant at a calibrated spacing as the tractor moves forward. The plant fingers are driven by a rubber flotation tire that rolls on the sand surface and a chain drives the disk to which plant fingers are attached. These fingers release the plants at a depth of 8 inches and a shoe pushes the soil back around the plant and closes the hole. The planter has been modified to drop the fertilizer and water, required at each plant location, at the same time as the plant drops. The tractor can pull 2 individual planter units at a time and they are spaced on a `tool bar' for the spacing requirements (21 inches). The number of passes required to finish each section will vary from location to location, depending on the depth of the dune. The planter can only be used on flat surface sand, so a typical planter placement sets of will consist of 6, 12, 18, 24, or 30 rows based on the width of the upper dune from existing veg to frontal slope. Most places for this project will be 18 to 24 rows. The speed of the tractor when pulling the transplanter and actively planting is 1.5 to 2 MPH. Most people can out walk the operation. The tractor will access the dune crest by direct line, same as stated above in hand planting, so no damage to the dune is done. If the dune is steep, we may angle up slope to be sure no rutting or damage is done. If needed, rubber mats can also be used to gain traction without damage to the dune face in order to access the upper dune. These mats are temporary and are immediately removed once the equipment is topside of the dune. The tractor and transplanter will transverse the beach one round trip per day. The tractor and water barrel will transverse on average three round trips per day to support the higher volume of planting when using the transplanter. The typical number of plant set moves in a day would be 2 if used without the mechanical planter and 5 if used in conjunction or after use of the mechanical planter. Conservation Measures 1.) No entry onto beach is allowed prior to 8 am. This gives Turtle patrol time to complete rounds and report and flag any located nest. If no calls are received, or if the calls indicate nest outside of the planting areas then access to the beach and crews proceed to the worksite. A work truck proceeds in front of the tractor to check for nest/crawls and clear tourist and property from the tractor path. Prior to dune access work crews will walk the entire length of the planned planting worksite to look for any sign of turtles or false crawls that may not have been reported. 2.) Daily worksites will be indicated with plants from previous days work on one side and a PVC stick painted red on the other side of the area to be planted for the next day. This stake will be located at the top of the dune crest. Turtle monitors will thus know where work will commence the following day and focus on potential turtle activity in that area. 3.) Point of contact information for the on-site quality control leader and all contractors will be provided prior to commencement of project construction. 4.) The tractor and water tank will be run in wet sand whenever possible. The only time that would not happen is when it must be moved at dead high tide. Due to tourist populations this is almost never done. We can work around those extreme tide periods by refilling prior to tides or waiting to enter beach until a waning tide. 5.) When possible, trips to and from the beach access points will be eliminated by accessing water sources directly on the beach. This eliminates trips, beach tracking, and speeds up the work. This generally requires utility, municipal, and private homeowner cooperation. 6.) Tire pressures in all equipment are run at the lowest possible setting to reduce PSI without damaging tires. This not only reduces compaction but also increases traction for all equipment. 7.) The mechanical transplanter will (can only) be used in the area above the 12 -foot dune crest. Only relatively flat beach can be planted using this method. The remaining areas of the dune slope and tie against the existing dune vegetation line must be hand planted. 8.) Prior to work every day the work crew will walk the entire area to be planted that day to look for turtle nest. During the planting operation the tractor driver will look for turtle crawl signs as proceeding forward with the planter. 9.) No mechanical planting work will be performed within 50 ft of any marked turtle nest or hand planting within 20 ft of any marked turtle nest. United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh Field Office Post Office Box 33726 Raleieh, North Carolina 27636-3726 October 5, 2017 Mr. Mickey Sugg Regulatory Division Wilmington District, U. S. Army Corps of Engineers 69 Darlington Avenue Wilmington, North Carolina 28403-1343 Subject: Bogue Banks Master Beach Management Plan Request for Concurrence and Initiation of Consultation Carteret County, NC Action ID No. SAW -2009-00293 Dear Mr. Sugg: This letter acknowledges the U.S. Fish and Wildlife Service's (Service) September 18, 2017 receipt of your September 12, 2017 letter requesting initiation of formal section 7 consultation under the Endangered Species Act. The consultation concerns the possible effects of the proposed Bogue Banks Master Beach Management Plan on the West Indian manatee (Trichechus manatus), piping plover (Charadrius melodus) and piping plover critical habitat, red knot (Calidris canutus r fa), seabeach amaranth (Awaranthus pumilus), and the loggerhead (Caretta caretta), leatherback (Dermochelys coriacea), green (Chelonia mydas), hawksbill (Eretmochelys imbricata), and Kemp's ridley (Lepidochelys kempir) sea turtles, and terrestrial critical habitat for loggerhead sea turtles. The Service reviewed the Draft Environmental Impact Statement (DEIS) and provided comments through the Department of the Interior on June 12, 2017. In addition, the Service discussed the project by phone and email with the Corps on several dates, most recently October 2, 2017. For this project, the Corps is the lead agency and BOEM is a cooperating agency. There are multiple sand sources proposed, including the old and current Ocean Dredged Material Disposal Sites (ODMDS), Area Y, 10 Atlantic Intracoastal Waterway (AIWW) disposal areas, and six upland sand sources (sand mines or borrow pits). Outer Continental Shelf (OCS) sand resources Iocated within the Current ODMDS borrow area 2 are proposed to be dredged for the Bogue Banks project. BOEM's proposed action is to issue a negotiated agreement authorizing use of the sand resource areas at the request of the local sponsor (authorized under 43 United States Code (U.S.C.) 1337 (k) (2)). This action is related to, but unique from, the locality or Corps' proposed action. The Service has received all of the information necessary to initiate formal consultation, as outlined in the regulations governing interagency consultations (50 CFR §402.14). The Service concurs with the Corps' determinations for all species listed in the BA. It is the Service's opinion that as proposed, the placement of sand may be covered by the August 28, 2017 Statewide Programmatic Biological Opinion (SPBO), with some clarification of the Terms and Conditions (discussed below). The SPBO may also cover sand placement as an associated action of sand extraction from the OCS authorized by BOEM. If the Corps intends that the project be covered under the SPBO, please send a written request for our agreement. Alternatively, the intention to cover the project under the SPBO may be outlined in a public notice for the project, to which the Service will respond. Term and Condition A.15 of the BO states: A.15. Only beach compatible fill shall be placed on the beach or in any associated dune system. Beach compatible fill must be sand that is similar to a native beach in the vicinity of the site that has not been affected by prior sand placement activity. Beach compatible fill must be sand comprised solely of natural sediment and shell material, containing no construction debris, toxic material, large amounts of rock, or other foreign matter. The beach compatible fill must be similar in both color and grain size distribution (sand grain frequency, mean and median grain size and sorting coefficient) to the native material in the Action Area. Beach compatible fill is material that maintains the general character and functionality of the material occurring on the beach and in the adjacent dune and coastal system. In general, fill material that meets the requirements of the most recent version of the North Carolina Technical Standards for Beach Fill (15A NCAC 07H .0312) is considered compatible. The Service believes that DEIS and the BA do not adequately describe the Munsell color of the native beach or the sand material to be placed on the beach. In previous nourishment activities using the proposed sand sources, dark sand was an issue, as was elevated temperatures of turtle nests. Large amounts of shell was also an issue for at least one sand placement event. According to information in your October 2, 2017 email and phone conversations with Kathy Matthews, the dark sands came from Borrow Areas A1, A2, B l a, B l b, B 1 c, and B2, which are not currently proposed for this project. However, Appendix A of the DEIS states that some of the sediment in the ODMDS and Borrow Area Y are "dark," with little additional description. Munsell color in particular, and color in general, is not discussed for the majority of the sand sources. Therefore, the data remain insufficient to assure that the sediment proposed for placement on the beach (particularly from the ODMDS and Borrow Area Y) will be compatible with respect to color, as well as percent of shell, fines, or gravel. Section 4.4 states that the majority of Borrow Area Y is not compatible, and that the sediment is "dark in color." For sediment characteristics other than color, the Service will defer to the state sediment criteria. There are no established criteria for color. Wet sand with a value of less than 5 (for example, hues of 10 YR, 7.5 YR, 5Y or 2.5Y with a value below 5) would be darker than what the Service considers acceptable for normal sea turtle incubation, because the darker color may cause higher incubation temperatures and greatly skew the sex ratio towards female (Mrosovsky et al. 1984, Mrosovsky & Provancha 1992). We understand that color monitoring of the material dredged from the navigation channel and the ODMDS has been conducted in the past, and that the material was found to be compatible. However, at least some of the other sites currently have relatively unknown compatibility. Therefore, the Service has the following recommendations to clarify the requirements of the SPBO. 1. In order to comply with the sediment compatibility Terms and Conditions in the SPBO, the applicant should provide to the Corps and the Service additional geotechnical data prior to each sand placement event, including a description of the wet sand Munsell color of the native beach and of the proposed sand source. Some of the sand sources appear to have a greater amount of existing geotechnical information, and so the amount of additional data needed may vary based upon the existing available information. Generally, a wet sand value of less than 5 should not be considered compatible. We note that based upon future data on the hue/value/chroma of the native beach, a value of 5 or higher may also be considered incompatible in comparison. 2. There is a general belief on the part of some agencies that darker -colored materials often "bleach out" within a few months, and therefore do not pose a compatibility problem. However, the Service has not seen any studies to support this belief. If incompatibly -dark sediments are placed in the project area during the life of the permit, the Service recommends that, among other remedial actions, the sand be monitored for three years (or until the sand is no longer on the beach, whichever comes first) to determine the depth to which "bleaching" occurs over the 3 -year period and the effect, if any, on temperature of sea turtle nests. A study plan should be submitted to the Service for review and approval before the bleaching and temperature monitoring begins. If you have any questions or concerns about this consultation or the consultation process in general, please feel free to contact Kathy Matthews at 919-856-4520, ext. 27 or by e- mail at <kathryn_matthews@fws.gov >. Sincerely, Peter Benjamin Field Supervisor cc: Ken Riley, NOAA Fisheries, Beaufort Maria Dunn, NCWRC, Washington 4 CARTERET COUNTY, NORTH CAROLINA BOGUE BANKS MASTER BEACH NOURISHMENT PLAN POST -FLORENCE PHASE II EVENT NOTIFICATION 1.0 POST -FLORENCE PHASE II PROJECT DESCRIPTION 1.1 Project Overview The Post -Florence Renourishment Project — Phase II will take place during the winter 2019/2020 (base project) and winter 2020/2021 (option project) construction windows (November 16 —April 30). Due to funding constraints (currently awaiting award of FEMA reimbursement) and total project volume required to make up for losses from Hurricane Florence, it is anticipated that construction will require two dredging windows to complete. The total project calls for 4,221,900 cy of material to be placed along 21 miles of oceanfront shoreline, spanning 10 nourishment reaches in Emerald Isle, Indian Beach, Salter Path, Pine Knoll Shores, and Atlantic Beach. Approximately 5,066,280 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses (20%) between dredging and placement. Figure 1-1 presents an overview of the total project extents, reach locations, reach lengths, volumes, and borrow area location. The "Base" project, to be constructed during winter 2019/2020, consists of 1,995,000 cy of material to be placed along 9.5 miles of shoreline. The "Option" project, to be constructed during winter 2020/2021, consists of 2,226,900 cy of material to be placed along 11.5 miles of shoreline. Project plans are provided in Attachment A. Slight adjustments in volume may be made prior to construction based on bid prices and pre -construction surveys. These adjustments could raise the project volume by up to 20%. These adjustments will be discussed in the pre -construction meeting with State and Federal agency representatives. 1 CARTERET COUNTY E,�L L wZN;-- - ------- --- .1V S U G C Reacti 40 F0 R ch Atlantic K11011 Beach- A% 6 S 14,900 it a tndjay' r Indian. it --Ow. meadIck w vw�r- Sa1w g 0 000 Vy 0fDM 4 ISMP10 c; 25,t meca r.JAO IN 00 0 too 00Q 0 1, e�J'Lfla . ' 1 rasa Rea Nd 1S%G " z 4B6, ev�efa St �bOGUE" Read Av iN it 535 m K-TiL e r -X e Z04 A5$q$0 p -h -FOB, lit) warpat" A ea 1800 - it 31 0 '3 EAE M c r-1 w_ , 6)J40 C ci O S LO 4- — CjV LV Base Fill Reach (201912020) 2 Option Fill Reach (2020/2021) " Figure 1-1: Post -Florence Renourishment Project — Phase 11 (Winter 2019/2020 and Winter 2020/2021) PI Table 1-1 and Table 1-2 present a summary of the reach extents and volumes for both the base and option projects. Table 1-1: Base Project Summary Table 1-2: Option Project Summary BASE PROJECT (WINTER 2019/2020) Reach Number Reach Name Reach Extents Length (ft) Volume (cy) Fill Density (cy/ft) Reach 2 Bogue Inlet (Emerald Isle) Whitecap Ct to Janell Ln 9,300 345,000 40 Reach 7 Salter Path Ocean View Ln to Hoffman Beach Rd 3,800 140,000 40 Reach 9 Pine Knoll Shores Ocean Glen Condos to Oak Leaf Dr 24,400 990,000 40 Reach 10 JAtlantic Beach 10ak Leaf Drto Beaufort Ave 1 14,900 520,000 35 Table 1-2: Option Project Summary 1.2 Project Template Plans call for a base project to be constructed during the winter 2019/2020 dredging window consisting of 1,995,000 cy of material to be placed along 9.5 miles of shoreline consisting of four nourishment reaches in Emerald Isle (Reach 2), Salter Path (Reach 7), Pine Knoll Shores (Reach 9), and Atlantic Beach (Reach 10). The average fill density will range from 35 — 40 cy/ft across each of the four reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the landward dune tie in will be constructed to tie in at the dune crest elevation. In cases where the existing vegetation line is below the dune crest, the landward dune tie in will be constructed with a 5:1 back slope down to the existing vegetation elevation. A seaward 5:1 dune slope will be constructed from the dune crest down to a berm of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. A 20:1 berm slope will be constructed down to tie in with the existing ground offshore between elevation -4 and -10 ft NAVD88. Approximately 2,394,000 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses between dredging and placement (20%). The option project will be constructed during the winter 2020/2021 dredging window pending receipt of reimbursement funds from FEMA. The option project consists of 2,226,900 cy of material to be placed along 11.5 miles of shoreline consisting of six nourishment reaches in Emerald Isle (Reach 1, Reach 3, Reach 4, and Reach 5) and Indian Beach/Salter Path (Reach 6 and Reach 8). The average fill density will range from 30 — 45 cy/ft across each of the six reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template in Reaches 1, 3, and 4 will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the 3 OPTION PROJECT (WINTER 2020/2021) Reach Number Reach Name Reach Extents Length (ft) Volume (cy) Fill Density (cy/ft) Reach 1 Bogue Inlet (Emerald Isle) Bogue Ct to Whitecap Ct 5,545 166,350 30 Reach 3 Emerald Isle West Janell Ln to Rip Tide Ct 15,750 708,750 45 Reach 4 Emerald Isle Central Rip Tide Ctto Connie St 11,950 537,750 45 Reach 5 Emerald Isle East Connie Stto Indian Summer RV Park 16,210 486,300 30 Reach 6 Indian Beach Indian Summer RV Parkto Ocean View Ln 6,025 180,750 30 Reach 8 Indian Beach/Salter Path IHoffman Beach Rd to Ocean Glen Condos 1 4,900 1 147,000 30 1.2 Project Template Plans call for a base project to be constructed during the winter 2019/2020 dredging window consisting of 1,995,000 cy of material to be placed along 9.5 miles of shoreline consisting of four nourishment reaches in Emerald Isle (Reach 2), Salter Path (Reach 7), Pine Knoll Shores (Reach 9), and Atlantic Beach (Reach 10). The average fill density will range from 35 — 40 cy/ft across each of the four reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the landward dune tie in will be constructed to tie in at the dune crest elevation. In cases where the existing vegetation line is below the dune crest, the landward dune tie in will be constructed with a 5:1 back slope down to the existing vegetation elevation. A seaward 5:1 dune slope will be constructed from the dune crest down to a berm of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. A 20:1 berm slope will be constructed down to tie in with the existing ground offshore between elevation -4 and -10 ft NAVD88. Approximately 2,394,000 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses between dredging and placement (20%). The option project will be constructed during the winter 2020/2021 dredging window pending receipt of reimbursement funds from FEMA. The option project consists of 2,226,900 cy of material to be placed along 11.5 miles of shoreline consisting of six nourishment reaches in Emerald Isle (Reach 1, Reach 3, Reach 4, and Reach 5) and Indian Beach/Salter Path (Reach 6 and Reach 8). The average fill density will range from 30 — 45 cy/ft across each of the six reaches however it is expected that the fill density will vary between 25 cy/ft and 50 cy/ft within each reach. The template in Reaches 1, 3, and 4 will consist of a dune of variable height ranging from 10 ft to 14 ft NAVD88 and variable width generally ranging from 20 ft to 50 ft. In most cases, the 3 landward dune tie in will be constructed to tie in at the dune crest elevation. In cases where the existing vegetation line is below the dune crest, the landward dune tie in will be constructed with a 5:1 back slope down to the existing vegetation elevation. A seaward 5:1 dune slope will be constructed down to a berm of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. A 20:1 berm slope will be constructed down to tie in with the existing ground offshore between elevation -4 and -10 ft NAVD88. The dune in Reaches 5, 6, and 8 was previously constructed during the Post -Florence Renourishment Project— Phase I (winter 2019). Therefore, these reaches will consist of a berm only extension of variable width generally ranging from 45 ft to 90 ft at a variable elevation ranging from 6 to 6.5 ft NAVD88. Approximately 2,672,280 cy of beach compatible material is expected be dredged from portions of the Current and Old ODMDS to account for losses between dredging and placement (20%). Figure 1-2 through Figure 1-5 present typical cross-section and plan views for the areas to be nourished during the Post -Florence Renourishment Project — Phase II. Figure 1-2 presents typical cross sections for reaches where a dune and berm are to be constructed (Reaches 1, 2, 3, 4, 7, 9, and 10). Figure 1-3 presents a typical cross section for reaches where only a berm is to be constructed (Reaches 5, 6, and 8). These typical cross section and plan views were developed based on the newest May 2019 survey data. Slight adjustments in the design template may be made prior to construction based on bid prices and pre -construction surveys. These adjustments will be discussed in the pre -construction meeting with State and Federal agency representatives. 0 Figure 1-2: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Cross Sections 5 20 � DUNE DISTANCE VARIES 20 ❑ISTANCE VAR IES LEVEL DUNE LEVEL DUN 30'-Q" � BERM WIDTH VARI S � BERM LE EL BERM LE EL BERM f \ H VARIES WID H VARIES --- EL ARIES RIES hj 0 FV z t \ \ uwi t \ \ 0.50' 10 z J \ \ 10 10 m m \ \ EL VARIES 10 , � m 0 m 0 > EL VARIES ILL a 0 > ILL /-DESIGN z ±0.5 FOOT z FOOT z 'w � TOLE AN CE TOLE ;NCE z w w i w w w z 0 1 z 0 ti M W EL -2.3 M W EL -2.3 APPROX F APPROX EXIST. GRA �'�- E i EXIST. GR DE�M1` j w i w G Q -10 -10 -100 0 100 200 300 400 DISTANCE (FEET) Figure 1-2: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Cross Sections 5 20 � DUNE DISTANCE VARIES 20 ❑ISTANCE VAR IES LEVEL DUNE LEVEL DUN 30'-Q" � BERM WIDTH VARI S � BERM LE EL BERM LE EL BERM f \ H VARIES WID H VARIES --- EL ARIES RIES hj 0 FV z t \ \ uwi t \ \ 0.50' z J \ \ 10 w \ \ \ EL VARIES 10 , � m 0 EL VARIES ILL a DESIGN ILL /-DESIGN z ±0.5 FOOT f0.5 FOOT z 'w � TOLE AN CE TOLE ;NCE w i z o 1 t ti M W EL -2.3 M W EL -2.3 APPROX F APPROX EXIST. GRA �'�- E i EXIST. GR DE�M1` w Figure 1-2: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Cross Sections 5 20 DISTANCE VARIES 20 LEVEL DUNE 30'-Q" � BERM LE EL BERM WID H VARIES --- EL ARIES hj 10 w \ \ 10 , � m 0 EL VARIES a DESIGN ILL z ±0.5 FOOT z � � TOLE AN CE z w i z o t M W EL -2.3 APPROX F a EXIST. GR DE�M1` w i -10 -10 -100 0 100 200 300 400 DISTANCE (FEET) Figure 1-2: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Cross Sections 5 � DUNE DISTANCE VARIES LEVEL DUNE 30'-Q" � BERM LE EL BERM WID H VARIES --- EL ARIES hj w \ \ w EL VARIES DESIGN ILL z ±0.5 FOOT z � � TOLE AN CE M W EL -2.3 APPROX EXIST. GR DE�M1` Figure 1-2: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Cross Sections 5 10 � BERM DISTANCE VARIES LEVEL BERM IDTH VARIES 1D � 0.50' 10 � --- — EL VARIES DE IGN FILL cc so TOLERANCE co co M z z wLi Li M W EL —2.3 APPROx EXIST. GRA EJ Lj� O D 0 Li w LL Li w —1D —10 —100 0 100 200 300 DISTANCE (FEET) 10 � BERM DISTANCE VARIES LEVEL BERM IDTH VARIES � 0.50' � --- — EL VARIES DE IGN FILL f D.50 FOOT TOLERANCE M W EL +1.5 M W EL —2.3 APPROx EXIST. GRA EJ Figure 1-3: Reach 5, 6, and 8 Typical Cross Section 1 2 3 4 5 Pr LANDWARD MLL uMl, 0 J A3 o " Tysr Oo - ]'%rvPC ] Oo �-zssaou ]ao+oe, ] - T ••' -.. ... . •,' „"•. 9+8b 'N3ziav r To M a 0 =a �h� wvi¢za SLOPE N 1 . +--II 5.1 SLOPE n --'_-I DUNE -T/4 b— X20+00 —,C' T]4N 0 ] eo '„rtNo �5 W e A m__' L w+ P �y D� iu oo �W�_ +—+�xa s�6EaM Ca ESiI �B t.-♦-- r�-�- _ _�_�+`F��-'zo�so°._ W = Q 9ERM _ Y ~—I_�_�HP2091 V—F_�_t_�_ K' )' —.. —MHW MEAN HIGH WATER_ ---MHry -.- MHW -- MHW W—... MHW .—uNW .-. MUW MNW _. wI� w MNW - MHW NHW Z - - 20'. SLOPE Z NLW—NI — _ = —NLW �._ NLW r �. ...MLW —MLW-t MLW MEAN LOW WA TER L MEAN TILE LINE uLw T. + - -T ULry —u J 5 OPE V H W MLW— W ..—MLw -. j1i J__--___L L2 2� — ----- —___----__ ------ �5£AWARO —Lw __ 2 ILL LIMIT cC�_O ATLANTIC OCEAN U w z O w b�I'I 17� I 700I I LANDWARD Fl1L LIMIT ]6c+___ + i j y El A H S 4 182`00. �r E�ST/@_DUNE vaaSs3 ~ UN:EN A a�o`y3� Fa•d NNw w 20'15LORE _— wwa E° REIV EMRM �u..0 NNw,NW NHW NHw MHw—W-L —MHW M— —W�. —.— auLw ]a— —T— MNw—NN— Hw w+�-�NMwD �MEA0.W- ATER MEAN TIDE LINE —_—PM�L �NT�F �I PPEE�a �„ A m SEAWARD FILL IJMIi — — -- -' -T11 ANA ---___L__ �__y_.—__—_J_� E A mm 1. SE SHEET C-601 FOR CONSTRUCTION 9—WORN POINT TABLES. 2 SEE SHEETS C-301 THRU C-335 FOR CROSS SECTIONS. 10®0 SCALE: 1"='DO NeC-123no. - `. 1 2 3 4 5 Figure 1-4: Reach 1, 2, 3, 4, 7, 9, and 10 Typical Plan View 1 2 1 3 1 4 5 ----------- IV CI FRI. - - - -------- 1: E-1 ILL ".1, 111- J. 4-1 �1­ �11 - ----------- HIGH WATER \ _,-WHW-.._h= HW- -WIW- -MHW- -MHW- -MH- -0- H- -W.1- -,HW- 1 -PE z -------------- ----- --- ----- --------------------- ---------- <-----N- IN L_ 1_1 E LINE - - - - - - - - - - a ._=AL I i I 11N, Q., El �AHIDIRD FTELI LIMIT BERM CREST/ MEIN -.WATER GERM Ht 2- SLOPE - - -- - -- - -- - - -- - -- - -- - -- - -- - - - - - - - - - I- ILI- M--.- -II -M- -.L.- --­ ML%- -W- -_AW LW��W LW- -­ -ML6- -MLI=. NEAN _E LINE I BAN LOW WATER - ---------- 3EA-ID FILL UMIT uo es: I- SEE -ET C-601 CNNSTRUC-N EA -INE PEINT TAD - 7. SEE SHEETS C-301 THRU C-335 FCR CROSIE SECTIONS =_c RLE: 1"='Oo' n„ Figure 1-5: Reach 5, 6, and 8 Typical Plan View m 1.3 Borrow Area Overview The borrow area is the same as was used for the Post -Florence Renourishment Project- Phase I (spring 2019). The borrow area covers approximately 773 acres, with 218 acres located in the Current ODMDS in Federal waters and 555 acres located in the Old ODMDS in State waters. Based on the after dredge survey taken in May 2019, there is approximately 10,772,643 cy of beach compatible material remaining above -52 ft NAVD88 within the borrow area which is permitted for a maximum dredge depth of -50 ft NAVD88 with 2 ft allowable overdredge. Approximately 8,197,365 cy of material is available in the State-owned portion of the borrow area and approximately 2,575,278 cy of material is available in the BOEM controlled Federal portion of the borrow area. Figure 1-6 presents the current borrow area bathymetry and available volumes. It should be noted that the County's BOEM lease agreement allows for the dredging of 2,000,000 cy of material over a 3 -year period that began with the construction of the Post -Florence Renourishment Project - Phase I in spring 2019. Based on before and after dredge surveys, it is estimated that only 136,449 cy of material was dredged from Federal waters during the Phase I project, leaving approximately 1,863,550 cy of material available for use during the Post -Florence - Phase II project. (2689873,335251) = r Ilk, r . . . .. . . . . . - - - - - - - 1 � 1 • 1 1 1 1 1 (Leaoi e__t (2689859,330753) -- - - -- = - - - - - - Legend State Jurisdiction 1 Federal (BOEM) Jurisdiction Past -Florence Phase II Borrow Area - 0 500 1,000 2,000 n' e Feet May 2019 Elevation (ft NAVD88) [1-52.7 - -52.0 F -45.9 - A5.0 ❑ -38.9 - -38.0 ❑ -51 9 - -51.0 i. -449-440 ❑ -37.9 - -37.0 ❑ -50.9 - -50.0 I_ -43.9-43.0 0-36.9 - -36.0 N -49.9 - -49.0 -42.9 - -42.0 -35.9 - -35.0 048.9- -48.0 L -41.9 - A 1.0 -34.9 - -34.0 0-47.9 - -47.0 ❑ -40.9 - -40.0 0-33-9 - -33.0 0 -46.9 - -46.0 ❑ -39.9 - -39.0 Figure 1-6: Borrow Area Bathymetry and Volumes E Again, while the total project placement volume is estimated to be 4,221,900 cy, due to losses incurred between dredging and placement (20%), it is expected that 5,066,280 cy may be dredged from the borrow area. Figure 1-7 and Figure 1-8 present the site plan and typical cross sections for the proposed borrow area located in the Current and Old ODMDS. 10 MOREHEAD GTN H ARBDR ORMCS— ® ssie wnoaao� 7 Figure 1-7: Borrow Area Site Plan PROPOSED BORROW AREA COOFCINAIE TABLE callo BA PRDROSED BORROW AREA CONTROL POINT C, 2011 NBRACORE LOCATION (SEE TECHMICAL SPECIFICATIONS FOR DATI SII MMARY) w REMOTE SENSING TIGOET NOTES FA EPN�"'Y[:ON TOURS SHOWN IN FEET REFEREMCEC TO NAVD RR ARE RASED ON NULT13 N! SUR VE V9 "C"' MEC BY GEODYNA MICS IN MAY 2019 ANG LAN ONLY BE CONSIDERED AS INC' CAIRO THE CONDM NS AT THE TIME OF THE BCHVEY. 2, BORROW AREA COORDINATES ARE NORTH CAROLINA STATE PLANE. HAD G (FEET). 3. THE NEIN HIGH x'ATER EL—TION ANO MEAN LDW WATCR CLCVATCN 5ICWN ON THE DREDGE .ON IS WERE PROVIDED BY CFRTENET COUNTYANO AR[ N AA TIDAL D ATVMS AT THE ATLAN (CURE pCH TRIPLE S PIER AND THE DIME MARINE LRB. 4. OTHER CONTRACTORS MAT BE PRESENT IN AREAS W4ERE DREDGING OF EPAOH ILL M ATERIALS IS TC OCCUR. CONTRACTOR 11 RESPONSIBLE FOR COONDINATING IDDITIES ' - - 'Lw SPE CIF'GA¶ONS FOR DATA SVIAMAP.Y DFTHE ARCHAEOLOGICAL REMOTE SENS VG AND TARGET IDENTIFICATION STUDY, III 5-UDY CONCLUDES THAT THE TARGETS CON`.'ST OF MODERN DEDRIS (WIRE ROPE. PIPE E-G.l THAT APPEARS TO BE RELATED TO TIE OCGGC SR ARTIFICIAL REEF SYSTETIE 191CO, NU GULTJEAL MS BUILT IN EIS DNICAL ARTIFACTS 'H ERE FOUNDS 6 TIECONTRACTOR SHAL LEAVE UND'STHADEO HHnns DF -IN DHFDGING PASses W -N THE ODMDS BOHHDW SIS J. FOR ODMDS BORROW SITE DREDGE SECTIONS, TARIE, SEE SHEE- C-105 ® O SCALE: 1"=500' RORIEONTAL 0 11 Figure 1-8: Borrow Area Typical Cross Sections 12 m ID P E' - p MHW. EL +I.S Mi EL -0.9 U 0 1G 10 20 IC�fi■��IS�11����1•�e��a�� -20 -� - - ESI TING GRANE 40 } .�A91��i ]i _ i9�SS�l��� _fi0 EL 51.0 -60 -]0 0 1000 2000 3000 4000 50]0 6000 DISTANCE NEST -D EAST (FEET) 7000 SD00 9000 10000 S -CT CN A -A i a pap = 0FO 19 C -10 -60 Y �xB 0 DISTANCE NEST i0 EAST (FEET) SECTION B-H $ p p SH d n la a ID D 0 g _ -20 a�-aa Z—Ol -y �= -]D o o rano 1a99 a000 a000 sono eo90 7ao0 a000 oa99 199oa OISTAUCE N£ST TO EAST (FEET) -L _ SECTION C -C �_ m E W Y Sc— 1-25VERTICAL - SCALE: I"=500'Hg ZMTAL S t 6 C-104 1 2 3 4 5 Figure 1-8: Borrow Area Typical Cross Sections 12 IC�fi■��IS�11����1•�e��a�� ���i*�_,�Y9q��Q►Ri .�A91��i ]i _ i9�SS�l��� Figure 1-8: Borrow Area Typical Cross Sections 12 1.4 Sediment Compatibility As discussed, the Post -Florence Renourishment Project— Phase II will use a borrow area within the Current and Old ODMDS that was previously used for the Post -Florence Renourishment Project — Phase I_ Sediment analysis was previously performed as part of the development of the Bogue Banks Master Beach Nourishment Plan and the borrow area has been proven to contain compatible material as the Federal portion was used during the Post -Irene Renourishment Project in 2013 and the Post -Florence Renourishment Project — Phase I utilized both State and Federal portions of the borrow area in 2019. Figure 1-9 shows the location of the analyzed vibracores within the borrow area. Figure 1-9: Potential Borrow Areas Within the Current and Old ODMDS Based on analysis of the native beach sediment data from 64 samples (16 transects) investigated by CSE in 2001, a median grain size of 0.3 mm was selected as the best representation of the native beach. The native beach characteristics and fill requirements established for the project are presented in Table 1-3. 13 Table 1-3: Native Beach Characteristics and Rule Parameters Characteristic 2001 Native NCAC Requirements Required Borrow Site Parameters Fines (<#230) Reported: 0%, Assumed: <1% <1% +5% < 6% Sand (>#230 & <#10) Reported at 98.68% - - Granular (>#10 & <#4) Reported combined at 1.32°/x, Assumed 0.7% each 0.7%+5% < 6% Gravel (>#4) 0.7%+5% < 6% Calcium Carbonate Reported at 15-20% 20%+15% < 35% In addition, Moffatt & Nichol conducted a field investigation on May 24, 2018 to estimate the total number of sediments and shell material greater than or equal to three inches in diameter, observable on the surface of the beach between mean low water and the frontal dune toe, in a 50,000 square foot area. Investigations were performed in two locations, one in Atlantic Beach between Transects 78 and 80 and one in Emerald Isle between Transects 29 and 30. The Atlantic Beach investigation area has never been nourished and the Emerald Isle investigation area has only been nourished once. Results of the investigation found 138 pieces of shell material greater than or equal to three inches in diameter at Atlantic Beach and 211 pieces of shell material greater than or equal to three inches in diameter at Emerald Isle. Vibracores within the borrow area were analyzed with respect to parameters as presented in Table 1-3 to determine the quantity and depth to which beach compatible material exists within the borrow area. Table 1-4 presents the sediment characteristics of the vibracores within the potential borrow areas. Based on analysis of these vibracores, it is estimated that beach compatible material exists down to an elevation of —52 ft NAVD88. Thus, plans will specify a dredge depth of -50 ft NAVD88 with 2 ft of allowable overdredge. Volume calculations indicate 2,575,278 cy of material exists above —52 ft NAVD88 in the potential borrow area within the Current ODMDS and 8,197,365 cy of material exists above -52 ft NAVD88 in the potential borrow area within the Old ODMDS (see Figure 1-6). Therefore, the total volume available from the potential borrow areas is 10,772,643 cy. While 4,221,900 cy is the expected placement volume, the anticipated dredge volume could reach 5,066,280 cy due to losses typically incurred between what is dredged and what is placed (20%). Weekly sampling will be performed, subject to laboratory analysis, to ensure sediment compatibility throughout the project. 14 Table 1-4: Sediment Characteristics of ODMDS Borrow Area Vibrato re Sample Interval Elev (ft, NAVD88) Gravel Size Class Granular g IN T Granu (wt%) Sand I armetri cs <#230 Descriptive Statistics Mean (rm) Std. Dev.(phi) USC Composition Organic (wt%) Carbonate -38.2 -43.2 1.16% 134% 97.36% 0.12% 0.27 0.99 SW 0.60 0.12 010 -43.2 -48.2 0.22% 187% 97.62% 029% 0.28 0.93 SW 0.60 0.13 -48.2 -53.2 0.18% 100% 98.57% 025% 0.26 0.82 SP 0.60 0.10 -53.2 -58.2 0.74% 2.56% 96.52% 0.16% 0.33 101 SW 0.60 0.14 -37.6 -39.6 2.70% 4.61% 92.06% 0.63% 0.34 135 SW 0.70 0.16 011 -39.6 -42.6 0.43% 3.32% 95.98% 027% 0.33 107 SW 0.60 0.14 -42.6 -47.6 0.07% 0.84% 98.83% 026% 0.26 0.83 SP 0.60 0.14 -47.6 -52.6 1.93% 148% 96.47% 0.12% 0.29 109 SW 0.60 0.14 -46.6 -51.6 4.59% 6.41% 88.74% 026% 0.45 159 SW 0.70 0.23 012 -51.6 -55.6 1.32% 3.24% 95.23% 0.21% 0.32 1.15 SW 0.80 0.14 -55.6 -60.6 0.34% 109% 68.36% 30.21% 0.20 0.99 SM 3.10 0.18 -60.6 -64.6 0.02% 189% 87.63% 10.46% 0.29 112 SW -SM 170 0.30 013 -47.3 -53.3 0.08% 138% 98.26% 028% 0.29 0.88 SW 0.60 0.12 -53.3 -56.3 0.24% 181-/0 88.22% 9.73% 0.23 101 SW -SM 130 0.16 -56.3 -58.3 0.01-/0 0.26% 35.690 64.04% 0.18 0.79 CL 4.30 0.11 018 -44.1 -50.1 122% 177% 96.48% 0.53% 0.28 110 SW 0.90 0.12 -50.1 -56.1 0.21-/0 2.53% 96.97% 029% 0.28 102 SW 0.60 0.13 -56.1 -62.1 0.09% 170% 79.59% 18.62% 0.20 105 SM 2.00 0.23 019 -36.1 -42.1 0.00% 0.68% 99.24% 0.08% 0.25 0.86 SW 0.60 0.11 -42.1 -48.1 1.69% 118% 97.13% 0.00% 0.29 107 SW 0.60 0.14 -48.1 -53.1 1.63% 128% 96.97% 0.12% 0.32 110 SW 0.70 0.13 -53.1 -55.4 0.00% 0.28% 99.23% 0.49% 0.24 0.73 SP 0.70 0.10 -36.4 -41.4 2.55% 3.35% 93.98% 0.12% 0.35 129 SW 0.60 0.18 020 -41.4 -46.4 128% 2.23% 95.77% 0.72% 0.31 118 SW 0.80 0.21 -46.4 -50.3 2.31-/0 2.38% 94.92% 0.39% 0.30 121 SW 0.60 0.09 -37 -42 0.36% 164% 97.72% 028% 0.30 0.92 SW 0.60 0.16 021 -02 -47 1.77% 3.11-/0 94.66% 0.46% 0.36 124 SW 0.60 0.12 -47 -52 1.66% 176% 96.42% 0.16% 0.31 108 SW 0.70 0.12 -32.7 -37.7 2.14% 2.52% 95.21% 0.13% 0.34 120 SW 0.60 0.16 022 -37.7 -42.7 2.12% 2.95% 94.79% 0.14% 0.31 118 SW 0.40 0.12 -42.7 -47.7 1.58% 121-/0 96.84% 0.37% 0.29 103 SW 0.40 0.12 -47.7 -52.7 1.06% 2.67% 95.87% 0.40% 0.34 102 SW 0.50 0.15 -47.8 -53.8 1.88% 3.50% 94.51% 0.11-/0 0.36 125 SW 0.60 0.13 023 -53.8 -57.8 0.08% 0.80% 9130% 7.82% 0.19 0.70 SP -SM 100 0.08 -57.8 -62.8 0.71-/0 102% 8163% 16.64% 0.27 1.06 SM 1.20 0.24 -62.8 -65 9.13% 16.02% 65.43% 9.42% 0.81 1.90 SW -SM 1.90 0.53 -49.3 -54.2 4.78% 3.50% 86.91% 4.81% 0.24 159 SW -SM 150 0.13 024 -54.2 -56.1 0.32% 0.87% 98.61% 020% 0.26 0.85 SP 0.50 0.10 -56.1 -63.2 1.85% 6.13% 73.39% 18.63% 0.38 163 SM 2.30 0.33 025 42 -48 0.90% 2.86% 95.88% 0.36% 0.33 110 SW 0.50 0.14 48 -54 2.05% 191-/0 95.21% 0.83% 0.33 121 SW 0.50 0.18 -54 -59.9 1.79% 2.86% 95.23% 0.12% 0.32 117 SW 0.90 0.19 -59.9 -61.5 0.00% 107% 92.30% 6.63% 0.18 0.80 SP -SM 160 0.10 -45.7 -50.7 5.01-/0 4.41% 90.21% 0.37% 0.36 162 SW 0.60 0.13 026 -50.7 -55 0.97% 137% 97.45% 0.21% 0.30 0.97 SW 0.40 0.12 -55 -59.5 0.35% 3.75% 75.53% 20.37% 0.23 133 SM 1.50 0.11 -43.6 -47.6 0.56% 2.97% 96.27% 020% 0.40 106 SW 0.50 0.17 027 -47.6 -51.6 0.67% 2.02% 96.96% 0.35% 0.32 1.00 SW 0.50 0.12 -51.6 -56.5 0.16% 135% 98.08% 0.41% 0.29 0.88 SW 0.50 0.12 -56.5 -60.4 0.40% 3.15% 83.73% 12.72% 0.21 115 SM 1.80 0.20 -42.7 -48.7 0.59% 162% 97.70% 0.09% 0.28 0.93 SW 0.50 0.13 028 -48.7 -54.3 0.41-/0 173% 97.70% 0.16% 0.30 0.95 SW 0.50 0.13 -54.3 -55.6 0.35% 187% 74.98% 22.80% 0.27 113 SM 1.70 0.14 -49.1 -52.6 0.15% 122% 98.57% 0.06% 0.29 0.86 SW 0.50 0.12 036 -52.6 -55.3 2.15% 4.31% 88.07% 5.47% 0.27 144 SW 1.50 0.22 -55.3 -60.1 0.00% 0.03% 93.27% 6.70% 0.14 0.34 SW 1.00 0.08 -60.1 -65 2.80% 3.99% 77.78% 15.43% 0.33 166 SM 2.30 0.34 15 1.5 Dune Planting Dune planting will be conducted on the dune crest and approximately half way down the dune slope to ensure dune stability over all tidal cycles. Project specifications, similar to what was implemented during the Phase I project, will include the planting of native sea oats and bitter panicum on a 24 -inch grid spacing. Due to plant germination and temperature growing requirements, it is likely that dune planting will not commence until late March during each construction window. During the turtle nesting window, certified sea turtle volunteers will walk the beach each morning (before 8 am) before planting begins to identify sea turtle nests and/or false crawls. Planting buffers of 50 ft (mechanical planting) and 20 ft (hand planting) will be applied in locations where nests were identified within the project placement area. Typical dune planting operations are provided in Attachment B and will be coordinated with the State and Federal resource agencies. Current guidelines allow for the use of heavy equipment on the beach (tractors, trailers, mechanical planters, etc.) until April 30th. After April 30th, equipment usage is restricted to light duty vehicles (ATVs and pick-up trucks), thereby requiring hand planting methods. ATVs are allowed to traverse the beach on wet sand and park on dry sand below the base of the dune. Pick-up trucks are only allowed to traverse and park on wet sand below the high tide line (wrack line). The County wishes to continue consultation with FWS to amend the guidelines to allow the use of heavy equipment (tractors, trailers with water tanks, and mechanical planters) on the beach after April 30th in order to significantly reduce the amount of time required to complete the planting. The County is willing to take on additional conservation measures to ensure the safety of turtle nests. 1.6 Methods of Construction The Post -Florence Renourishment Project — Phase II to be performed in Winter 2019/2020 and Winter 2020/2021 will use a hopper dredge to obtain material from the Current and Old ODMDS where it will then be transported to an offshore temporary mooring and submerged pipeline near the project site. A pre -construction survey of the submerged pipeline crossing will be provided to state and federal agencies prior to construction. The hopper dredge will then connect to the pipeline and pump the material from the hopper to the beach where the sand is spread mechanically by bulldozers. This is the same type of dredging placement operation used during the Phase I project (2019) as well as multiple historical projects (Phase 1 and 2 of the Bogue Banks Beach Nourishment Project (2001/2002 and 2002/2003), Post-Ophelia (2007) and Post -Irene (2013)). 2.0 ENVIRONMENTAL DOCUMENTATION AND AGENCY COORDINATION The Post -Florence Renourishment Project — Phase II is a continuation of the first project (Post - Florence Renourishment Project — Phase I) completed under the Bogue Banks Master Beach Nourishment Plan. Pursuant to the National Environmental Policy Act (NEPA), the environmental effects of implementing the Bogue Banks Master Beach Nourishment Plan have been evaluated in an Environmental Impact Statement (EIS). The Final EIS (FEIS) was distributed to state and federal agencies and a Record of Decision issued in 2018. 1E The following state and federal permits/agreements have been issued for the Bogue Banks Master Beach Nourishment Plan: • The NC Division of Coastal Management issued CAMA Major Permit 991-18 dated September 4, 2018. • USACE Action ID No. SAW -2009-00293 dated November 8, 2018 (50 -yr permit). • NMFS issued Biological Opinion SER -2017-18882 dated October 23 2018. • BOEM issued Lease Authorization Agreement No. OCS-A 0523 dated February 21, 2019. (3 -Yr Lease Agreement) • FWS Statewide Programmatic Biological Opinion Conditions for beach placement will be instituted. Permit conditions include dredge window restrictions, dredge cut depth restrictions, sediment compatibility, and endangered species takes. Measures will be taken by the engineer and contractor to meet each of these requirements. Beach construction and use of heavy equipment on the beach will be limited to the November 16 — April 30 time period for placement of beach material. Dredging in the borrow area will not exceed -52 ft NAVD88. Plans and specifications will indicate a maximum dredge depth of -50 ft NAVD88 plus 2 ft allowable overdredge. The large borrow area, containing ample material, will keep individual dredge cut depths to a minimum. The maximum dredge cut for the Post -Florence Renourishment Project - Phase I was approximately 7-8 ft and that is expected to remain for the Phase II project. In addition, undisturbed areas will be left to allow for recovery of benthic resources. Weekly sediment sampling will be performed by a third party laboratory analysis to ensure grain size and color are beach compatible. Daily onsite visual assessment of sediment compatibility will also be conducted by the contractor. The County may require relocation trawling for the entire length of the project regardless of whether the mandatory trawling triggers have been met (i.e. water temperature, lethal take). Endangered species monitoring will be implemented on both the dredge and the trawler, when working, for the entire length of the project. The project specific BO which applies to the 50 -yr Master Beach Nourishment Plan has the following incidental take statement: Table 2-1: Incidental Take Statement Over 50 -yr Master Beach Nourishment Plan Species Observed Lethal Take Observed Non -Lethal Take Green sea turtle 3 0 (all hopper dredging) Kemp's Ridely sea turtle 4 0 24 30 Loggerhead sea turtle (23 hopper dredging, 1 (all relocation trawling) relocation trawling) Atlantic Sturgeon 11 847 (all hopper dredging) (all relocation trawling) A "self imposed" incidental take statement was included in the specifications for the Post -Florence Renourishment Project — Phase I so as to allow a proportionate amount of takes for a single project 17 as compared to the overall allowable takes for the 50 -yr Master Beach Nourishment Plan (see Table 2-2). This procedure will also be implemented during the Post -Florence Renourishment Project — Phase II. Table 2-2: Proposed Incidental Take Statement for Post -Florence Renourishment Project — Phase I Species Observed Lethal Take Observed Non -Lethal Take Green sea turtle 0 0 Kemp's Ridely sea turtle 0 0 Loggerhead sea turtle 1 2 Atlantic Sturgeon 1 30 It should be noted that the non -lethal trawling takes during Phase I exceeded the "self imposed" project specific and 50 -yr Master Beach Nourishment Plan allowable takes (see Table 2-3). Consultation with the agencies was initiated immediately upon the first non -lethal take of a Green sea turtle and trawling was allowed to continue successfully throughout the remainder of the proj ect. Table 2-3: Post -Florence Renourishment Project — Phase I Incidental Takes Species Observed Lethal Take Observed Non -Lethal Take Green sea turtle 0 5 Kemp's Ridely sea turtle 0 4 Loggerhead sea turtle 0 8 Atlantic Sturgeon 0 11 Leatherback 0 1 Early consultation with BOEM and USACE have confirmed the County will continue with the project specific BO and incidental take statement. The engineer and contractor will coordinate monitoring and reporting protocols and points of contact for the Phase II project during the pre - construction meeting. 3.0 MASTER BEACH NOURISHMENT PLAN STATUS The Post -Florence Renourishment Project — Phase I was the first project completed under the Bogue Banks Master Beach Nourishment Plan. A continuation of this project is being planned for the 2019/2020 and 2020/2021 construction windows. Figure 3-1 presents an overview of the volumes and extents of the initial project (Post -Florence Phase I) and planned Phase II project. 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Banks Beach■Projects / / ■ Figure 3-1: Bogue Banks Master Beach Nourishment Plan History 19 3.1 Summary of Previous Projects Post -Florence Renourishment Proiect Phase Iring 2019 Construction) A 956,000-cy project was designed with the intention to replace the incipient dune and berm lost during Hurricane Florence along 5.2 miles of beach encompassing three reaches of shoreline in Emerald Isle and Indian Beach/Salter Path. Emerald Isle East (Reach 1) was planned to receive 615,000 cy of material over 16,400 ft (average of 38 cy/ft) and Indian Beach/Salter Path (Reaches 2 & 3) was planned to receive 182,000 cy of material over 6,100 ft (average of 31 cy/ft) in Reach 2 and 159,000 cy of material over 5,075 ft (average of 32 cy/ft) in Reach 3. The project template consisted of a dune of variable width at +12 ft NAVD88 with a 1:5 slope down to a berm of variable width at +6 ft NAVD88 and then a flatter slope of 1:20 out to the existing ground, landward of the prominent offshore bar. The final project included slightly more material than the original plan due to changes in the beach during construction as well as the placement of additional material at the historical hotspot in Reach 1. Emerald Isle East (Reach 1) received a total of 624,945 cy of material over 16,450 ft of beach for an average of 38.0 cy/ft. Indian Beach/Salter Path (Reaches 2 & 3) received approximately 192,439 cy of material over 6,050 ft of beach in Reach 2 for an average of 31.8 cy/ft and 158,263 cy of material over 5,100 ft of beach in Reach 3 for an average of 31.0 cy/ft. Table 3-1 and Figure 3-2 summarize the placement locations and volumes for the Post -Florence Renourishment Project - Phase 1. Table 3-1: Post -Florence Renourishment Project — Phase I Volumes 20 Design Design Final Final Length Reach Volume Density Volume Density (ft) (cy) (cy/ft) (cy) (cy/ft) Reach 1(Emerald Isle East) 16,450 615,000 37.4 624,945 38.0 Reach 2 (Indian Beach/Salter Path) 1 6,050 1 182,000 1 30.1 1 192,439 31.8 Reach 3 (Indian Beach/Salter Path) 1 5,100 1 159,000 1 31.2 1 158,263 31.0 Total 1 27,600 1 956,000 1 34.6 1 975,647 35.3 20 INLET Reach n $eachl Ran achf in Salter Path 58 ch 1 lndi Sects 55' Reach late Salter 5 49.52 '1 5,400 it BOGUE," Em rots 3,tAS Trance Oft --t5a 263 cY INLET Tran1B 450 it 6,05 cYlftl -192sYltt) Baty (380 cYlft1 620 .-- (3M1 SBopa _.._._._ �atgt fed". ONSLO W BAY ,4, 0 1 2 3 oMiles Old ODMDS Borrow Areas [ODMDS rent Figure 3-2: Post -Florence Renourishment Project — Phase I Volumes 3.2 Master Plan Volumes and Renourishment Intervals Based on analytical analysis of background erosion rates and historical storm damage, the Bogue Banks Master Beach Nourishment Plan has allotted 22.6 Mcy of material to mitigate background erosion and 27.2 Mcy to mitigate storm damage. An additional 1.8 Mcy has been allotted to account for sea level change. Table 3-2 presents a summary of the volume needs for the Bogue Banks Master Beach Nourishment Plan over a 50 -year timeframe. Table 3-2: Master Beach Nourishment Plan Volumes Parameter 50 -yr Volume (Mcy) Background Erosion 22.6 Storm Damage 27.2 Sea Level Change 1.8 50 -yr Total 51.6 The Post -Florence Renourishment Project — Phase I had a final volume placement of approximately 975,647 cy of material of which 945,445 cy can be allocated to the storm damage mitigation allowance and 30,202 cy allocated to background erosion. Current plans call for 4,221,900 cy of material to be placed in the Post -Florence Renourishment Project - Phase II. Approximately 2,525,355 cy can be attributed to storm damage mitigation and 1,696,545 cy to background erosion (please recall that a project was being planned prior to Hurricane Florence to 21 mitigate background erosion). Table 3-3 presents the current volume status of the 50 -Year Bogue Banks Master Beach Nourishment Plan. Table 3-3: Master Beach Nourishment Plan Status Parameter Background Erosion (cy) Storm Damage (cy) Sea Level Change (cy) 50 -yr Master Plan Allowance 22,600,000 27,200,000 1,800,000 Post -Florence Phase I Volume 30,202 945,445 0 Post -Florence Phase II Volume 1,696,545 2,525,355 0 Volume Remaining 20,873,253 23,729,200 1,800,000 Since the first (Post -Florence Phase I) and second (Post -Florence Phase II) projects under the Bogue Banks Master Beach Nourishment Plan are considered a combination of background erosion and storm mitigation projects, expected to be completed by spring 2021, the projected 3 - year renourishment intervals established for background erosion in the Bogue Banks Master Beach Nourishment Plan (see Table 3-4) would likely not be applicable until 2024-2025 (volume expected during 2019 and partial volume during 2022 are being accounted for in the Post -Florence project), barring any storm damage events between now and then. Table 3-4: Renourishment Intervals and Preliminary Projects Based on Background Erosion* Year Management Reach Nourishment Volume (cy) Nourishment Project ('r) 2019 686,067 3 2022 1,839,351 6 2025 967,920 9 2028 1,839,351 6 2031 686,067 3 2034 2,121,204 6)9 2037 686,067 3 2040 1,839,351 6 2043 967,920 9 2046 1,839,351 6 2049 686,067 3 2052 2,121,204 6,9 2055 686,067 3 2058 1,839,351 6 2061 967,920 9 2064 1,839,351 6 *Reference Table 1-3 in the 2014 Bogue Banks MBNP for projected volume needs and nourishment cycles of the managed reaches. 22