NCDOT Hatteras/Ocracoke Passenger Ferry Dock Replacements in Dare and Hyde Counties Addendum 1

Location: North Carolina
Posted: Apr 14, 2026
Due: Apr 15, 2026
Agency: Division of Highways
Type of Government: State & Local
Category:
  • 23 - Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles
Publication URL: To access bid details, please log in.
  • DA00645
    POC
    NCDOT Hatteras/Ocracoke Passenger Ferry Dock Replacements in Dare and Hyde Counties

    • Attachment Preview

    JOSH STEIN
    GOVERNOR
    April 9, 2026
    STATE OF NORTH CAROLINA
    DEPARTMENT OF TRANSPORTATION
    DANIEL H. JOHNSON
    SECRETARY
    Addendum No. 1
    Contract No.: DA00645
    TIP #: FF-0001A
    WBS Element: 50801.3.2, 16.71001
    NCDOT Hatteras/Ocracoke Passenger Ferry Dock Replacements in Dare and Hyde Counties
    To Whom It May Concern:
    Reference is made to the proposal and plans previously furnished for this project.
    The following revisions have been made to the proposal and plans:
    Proposal Page No. 3, “Table of Contents” has been revised to include the new special provision for “Transportation
    Worker Identification Credentials (TWIC)” Card. Please replace the original proposal page No. 3 “Table of
    Contents” with the attached revised page No. 3 “Table of Contents”.
    Proposal Page No. G-37 has been revised to include a new special provision for “Transportation Worker
    Identification Credentials (TWIC) Card”. Please replace the original proposal Page G-37 with the attached revised
    Page G-37.
    In response to questions submitted during the advertisement phase, and to ensure consistent information for all
    parties, we have listed the inquiries and answers below.
    Questions from the Pre-Bid meeting:
    1) Is it a requirement for the Contractor to dewater the Poseidon floating barges; if so, when?
    Answer: Contractor will be required to inspect and dewater the floating barges prior to relocating to the
    Shipyard.
    2) The hatches on the existing floating docks are not operable. What options exist for dewatering?
    Answer: Contractor may propose a method to be approved by Ferry Division prior to implementation.
    Options include drilling a hole and draining with a hose, forcing hatches open by introducing greater
    torque, etc.
    Mailing Address:
    NC DEPARTMENT OF TRANSPORTATION
    DIVISION ONE
    113 AIRPORT DRIVE, SUITE 100
    EDENTON, NC 27932
    Telephone: (252) 482-1850
    Fax: (252) 482-8722
    Customer Service: 1-877-368-4968
    Website: www.ncdot.gov
    Location:
    113 AIRPORT DRIVE, SUITE 100
    EDENTON, NC 27932
    DA00645 Addendum #1
    3) How are the floating barges to be relocated to the Mann’s Harbor shipyard?
    Answer: After dewatering, floating barges may be transported via land or water. The Contractor shall
    determine the means and method for transporting. The proposed method will need to be pre-approved by
    the Ferry Division. Note that barges may be broken apart into smaller segments prior to relocating,
    which must occur prior to use of Shipyard crane (see question 4, below).
    4) When will laydown and staging areas be available?
    Answer: All staging areas will become available on September 14, 2026. At Hatteras, the smaller area
    within the access gate can be made available sooner; access and date must be coordinated with the Ferry
    Division in advance. Note, Contractor will be responsible for repairing any damage to the facilities,
    including asphalt.
    5) What are the access and coordination requirements for Silver Lake?
    Answer: Perimeter fencing is not present at Silver Lake. However, similar to Hatteras, all work will
    require prior coordination with the Ferry Division.
    6) What are the access and coordination requirements for removing the existing materials from South
    Dock?
    Answer: This is within a secure area; prior coordination with the Ferry Division and a TWIC card will be
    required.
    7) Which items from South Dock, if any, are to be delivered to the Mann’s Harbor Shipyard?
    Answer: The aluminum railings currently located at South Dock must be disconnected from the existing
    barges and delivered to the Shipyard. All other items identified for removal will become the property of
    the Contractor.
    Submitted Questions:
    8) Concrete-Related Questions:
    A. To allow for longer concrete placement window, is it acceptable to use retarder?
    B. With the distance from the plant for both of these locations, [Supplier] will not be held liable for out
    of spec concrete related to time or temp… NCDOT is generally good about making concessions on
    these
    C. It will be challenging placing concrete at the Ocracoke side due to travel time. If concrete cannot be
    put to sleep is it acceptable to use bagged concrete?
    Answer to Grouping of Above Three Questions: Hydration controlling admixtures (not retarders), such as
    Sika-440, may be allowable to put the concrete “to sleep” for up to 6 hours. Contractor will be required
    to submit this as part of mix design process post-award. Volumetric trucks are also approved but for
    Class B only. Bagged mixes are not acceptable for structural applications. Time and temperature
    acceptance will be at the discretion of the Engineer.
    Page 2 of 7
    DA00645 Addendum #1
    9) Are test piles/ lateral load testing of the fender piles required?
    Answer: No, these are not required.
    10) Can a vibratory hammer be used to install piles or will piles be required to be impacted?
    Answer: In accordance with the Special Provisions, a sufficiently sized vibratory or impact hammer shall
    be used to install piles. All pile installations shall be attempted first with a vibratory hammer. The need
    for an impact hammer is not anticipated, but it may be required to install piles to the target tip elevation.
    The special provision requires that the contractor prepare and submit a wave equation analysis and report
    that shall be used to assess the capability of the proposed driving system to install the piles.
    11) Can you provide information on the King pile to be demolished?
    Answer: Piles to be demolished are the existing floating dock guide and king piles. Guide piles are 30” in
    diameter, have tip elevation of -60.5’ NAVD88 and are filled with sand. King piles are 24” in diameter,
    have a tip elevation of -58.0’ NAVD88 and are filled with sand.
    12) Ocracoke sheet M-301 calls out railing as wood. Sheet M-502 calls for Aluminum.
    Answer: Aluminum is the correct material to be used; a revised sheet M-301 will be issued in a
    subsequent addendum.
    13) What portion of the steel pipe pile is to be coated?
    Answer: At a minimum, steel pipe piles shall be coated as follows: Ocracoke - from cutoff elevation to
    15’-0” MLLW, Hatteras – from cutoff elevation to -17’-0” MLLW.
    14) Can you provide a supplier for the piles and lumber? My suppliers cannot meet the requirements for .60
    cca, kiln dried MC-19, nor can they provide Dense/Select piles.
    Answer: Unfortunately, we are not able to specify suppliers. However, this question was only received by
    a single bidder.
    15) Is the top rail aluminum? Dimension on drawing says" 2-5/8" in text but 3" in section. Which one? 2-5/8"
    is available.
    Answer: 2-5/8” is the correct dimension for the aluminum top rail. A revised detail will be issued in a
    subsequent addendum.
    16) Can we use 2" X 2" rail posts? No readily available top bar for 2-1/2" posts.
    Answer: Yes, the 2” x 2” rail posts can be used. 2-1/2” posts were specified because they are generally
    commercially available and preferred; please note, this question was only received by a single bidder.
    17) What is the finish for the railings? Powder coated? Mill?
    Answer: The railing finish shall be baked-on powder coated.
    18) Ocracoke M-102 Bumper Piles, please confirm lengths are correct.
    Answer: Lengths for bumper piles (6 total locations) were incorrect and have been updated. Plumb piles
    have a length of 64.00’ and batter piles a length of 64.22’.
    Page 3 of 7
    DA00645 Addendum #1
    19) Sheet G-002 Steel Pile Note 3. Where can I find Technical Specification Section 31 62 16?
    Answer: Technical Specification Section 31 62 16 is not applicable to this project. Refer to Ferry Special
    Provisions (Steel Fender Piles) included in contract documents.
    20) Questions Related to Spoil Site:
    A. Please specify where the offload/ offshore site is.
    B. Please specify where the spoil site is (offshore and inshore).
    Answer to Grouping of Above Two Questions: The upland disposal site for the dredged material is located
    on the north end of Ocracoke. Exhibit 1 has been posted to the project file on the Division 1
    advertisement page indicates a location map for the disposal site. The specific location within the
    disposal site where spoils are to be placed will be determined at the time of dredging due to ongoing
    dredging operations prior to project; coordination with Ferry Division will be required prior to placement.
    21) Will special accommodation be available to utilize vehicle ferry for concrete placement days? Can these
    occur at night or off hours?
    Answer: Ferry Division will accommodate construction vehicle travel based on the published ferry
    schedule.
    22) Is dredge material hazardous?
    Answer: To our knowledge, none of the dredge material is hazardous. NCDOT permitted spoil site does
    not require hazardous material testing.
    23) Has a soil test of the dredge material been performed to confirm no contaminated soils?
    Answer: Borings were taken from basin during monopile design project but were not explicitly tested for
    contamination. However, testing is not required for dredge spoils on this project.
    24) What is the vehicle weight limit of the ferry?
    Answer: If a vehicle is a typical road-legal weight, it can be accommodated on the published vehicle
    schedule. Ferries can accommodate overweight vehicles if they meet the road-legal requirements of
    overweight vehicles. If vehicles are overweight, additional scheduling accommodation will be required;
    coordination with Ferry Division will be needed. This is in addition to standard overweight permits
    needed for roadway travel.
    25) Is it acceptable to take material deliveries i.e. piles, lumber etc. from existing bulkhead?
    Answer: At Hatteras, materials can be delivered from land to water via the bulkhead. However, at
    Ocracoke, access is more limited; unloading at Silver Lake will need to occur from the parking lot
    immediately in front of passenger ferry docking location. Delivery from water to land is also acceptable
    at both locations with the above consideration for Silver Lake.
    26) Is there Environmental Permit TOYR for in-water work?
    Answer: Yes, there are time of year restrictions for in-water work from April 1 through September 30
    each year. The project schedule has been developed with this in mind, and these restrictions are therefore
    not anticipated to impact the project’s availability.
    Page 4 of 7
    DA00645 Addendum #1
    27) Nationwide permit in bid documents expired 3/14/26. Has permit been renewed?
    Answer: Permit is valid through 03/14/2027.
    28) Can you provide the geotechnical report by Caitlin Engineers to bidders?
    Answer: Yes; the reports have been posted to the project file on the Division 1 advertisement page.
    29) Floating Barge Weight Questions:
    A. What is the bare weight of the Poseidon barge?
    B. Can the plans/specs and weights for the existing temporary floating dock/barges be provided?
    The following answer applies to the above-two questions: Please reference the Poseidon plan sheets that
    have been posted to the project file on the Division 1 advertisement page.
    30) Will basin area be closed off to boat traffic during dredging? If not, how is contractor to manage turbidity
    curtain and monitoring?
    Answer: Basin will not be closed to all boat traffic during dredging operations. However, the Ferry
    Division will coordinate with the contractor to allow for operations to occur and to accomplish project
    goals. Placement and maintenance of turbidity curtains will be coordinated at that time. Note that the
    project is occurring outside of peak ferry schedules.
    31) Please confirm where temporary floating docks are to be taken to? Are these going to be unloaded by
    NCDOT or the contractor?
    Answer: Floating docks are to be delivered to the NCDOT Ferry Division Shipyard located at 8550
    Shipyard Rd, Manns Harbor, NC 27953. The Shipyard will use its existing crane to unload the barges.
    The barges must be broken apart into smaller segments and dewatered prior to use of the Shipyard crane,
    which has a maximum capacity of 50 TON.
    32) The permitted dredge depth and design dredge depth are both 10’ MLLW. Typically, a tolerance is
    provided between the max permitted and design depths to accommodate unavoidable inaccuracies in the
    dredging process. Will the State consider raising the design dredge depth to 9’ MLLW with 1’ of
    allowable and payable overdepth.
    Answer: In accordance with the Special Provisions to facilitate dredging down to the required depth, the
    Contractor may disturb one (1) foot below the required dredging depth provided. Refer to the Special
    Provisions (Dredging) for additional information.
    33) Is hydraulic dredging acceptable, and if so, can a disposal line be run from the dredge to an approved
    offshore disposal site?
    Answer: If the Contractor can identify and permit an offshore disposal site within the project timeline,
    hydraulic dredging would be acceptable and a disposal line could be run with agency approval.
    Contractor would also be responsible for determining acceptability of material for offshore disposal.
    Page 5 of 7
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