B08_CALO226858_Questions_Responses_Spreadsheet_-_Amend_02_0002.pdf

PARK: CALO

PMIS #: 226858

Project Name

/ Description Repairs to the Cape Lookout Lighthouse

Question # Question: Responsible Party:Answer:

Regarding Attachment 04, Project Experience

Questionnaire; the attachment as provided with the solicitation does not appear to be fillable or editable. Nor will it convert to a .docx format. Can a fillable form format

(similar to Attachment 5 Past Performance) be provided?

Contracting A word version of the attachment 04 - Project Experience and 05 - Past Performance Form will be uploaded in Amendment 01.

2 Will the Site Visit Attendee List and formal notes be posted to SAM.gov?

Contracting

Yes, a viewable version will be uploaded in Amendment 01.

1. The available information provided where it pertains to

Option #2 is insufficient at best. This combined with

52.211-18 Variation in estimated quantity is of great concern. It appears the NPS intention is to perform the base bid of stabilization and removal and to later do the repairs and reassembly of the iron. We are capable of providing a quote to remove, restore and install based on a extended examination of the light house. However; there is no base line to the quoting of this work in the specs or prints therefore no two quotes are going to encompass the same things. My concern being those of us with the most experience dissembling and re-erecting the metal components of lighthouses will at disadvantage in the quoting procedure. Please provide repair schedule for metal work. (Reference Division 5 Metal Section 05383 -

Historic Cast Iron Repair)

AE

Response: The SD-sheets relate to CLIN 4 and the S-sheets relate to CLIN 10. The assumed elements to be replaced for bidding purposes are noted on the drawings (Plan Sheets S1 through S13, with particular emphasis on S8 through S11). The note on Plans Sheet S8 states “assumed quantities for bidding”.

01 35 23 / 3.5 / A / 5. scaled drawings for each element.

This isn’t realistic on site. The drawings not only would require documenting the present condition of the items dissembled but would require the ability to model / draw what they would have been before 100 years of deterioration, rust-jacking, breakage and neglect.

(Reference Division 5 Metal Section 05383 - Historic Cast

Iron Repair)

AE

Response: Specification 01 35 91.3.5.A.5 is in coordination with Cast Iron Repair Specification Section

050383 annotating casting methods, Specification Section 050374 which outlines replication (requires shop drawings i.e. scaled drawings)

The intention in all the drawings is to document each piece’s basic geometry, location, and orientation, then to put the pieces themselves aside so that they can be used for making patterns for reproduction.

The intention is that the new pieces would be made, not from extremely detailed drawings, but from a combination of the drawings and the original pieces (per Specification Sections 050383.3.1, 050374.1.3.B, and 050383.1.4.B, and Plan Sheet SD1-SD2 -Sheet Note 2).

Will the Historical Structural Report from 2008 available to bidders?

Project

Response: The Historic Structural Report from 2008 will be provided for information only. See Historic

Structure Report folder included in Amendment 2 ZIP file.

Will the NPS be making the blueprints for this light house available? There are limited pages available in a PDF format on the National Archives website. It’s been my experience that the full set of drawing are in the Naval or national archives and have not been made available in a

PDF format. (Reference Division 5 Metal Section 05383 -

Historic Cast Iron Repair)

Park/DSC

Response: The original lighthouse design plans will be provided on for information only. See Original

Design and Prior Renovations folder included in Amendment 2 ZIP file.

7 Geotech Testing- Has any testing been completed at the base of the lighthouse to ensure the grade will support the loads imparted by the scaffold? If so please provide these reports

AE

Response: No geotechnical investigations were performed around the lighthouse. The government anticipates the contractor will, if necessary, provide geotechnical investigations to support their means and methods as there are ways that may not require geotechnical investigation.

8 Geotech Testing- Has any testing been completed at the temporary access read to determine load limits on the access road? If so please provide

AE Response: No geotechnical investigations were performed for a temporary access road. The government anticipates the contractor will provide any necessary geotechnical investigation necessary to support their means and methods.

01 50 00 Temporary Facilities and Controls- Will timber matting be allowed at the temporary access road?

Park/AE Response: The use of timber matting at the temporary access road is allowable but would need to be coordinated with the Park for the extent of the use, duration of the use (one time, whole project, etc.), and would need to be approved by the CO prior to deployment.

01 50 00 calls for 300 sf office trailer for contracting office.

This is larger than the barge allowed at the off loading area, will a larger barge be allowed to land at beach?

Park

Response: Use of larger barges may be allowed if approved by the Contracting Officer. Requirements in Spec Section 01 11 00 will be revised in an amendment. Response: Minimum requirements for the

Contracting Officer's field office in Spec Section 01 50 00 will be revised in an amendment. See Spec

Edit 01 50 00 folder included in Amendment 2 ZIP file.

11 Will the NPS consider extending the bid date to allow for best possible sub coverage given the logistical challenges at

CALO?

Contracting

Yes, the proposal due date will be extended in Amendment 01.

085200 - Wood Windows and Doors There have been some issues location window manufactures who can meet the requirements outlined. Please provide manufacturer recommendation if any are available.

AE

Response: Per Specification Section 085200 Paragraph 1.2.A, windows and doors shall be custom fabricated.

Division 9 Finished

What is the definition of “clean” for interior masonry?

AE

Response: Per Plan Sheets A1 through A9, Sheet Note 02, "clean" is in reference to areas which are required to be repointed or repaired. See Specifications Sections 040322 Paragraph 3.4.F; 040323

Paragraph 3.3.A.1; and 040323 Paragraph 3.4 for repointing or repair cleaning procedures.

On drawing sub-sheet A7, it calls to recoat existing wall reference in CLIN 9. There is no coating associated with

CLIN 9. Please advise. Is this the wood wall?

AE

Response: Per Specification Section 01 27 00 Paragraph 3.1.K, Wood wall cleaning and recoating is part of CLIN 9.

15 Please confirm there is only one wood landing and only one wood wall. (Drawing A11)

AE Response: Only one wood landing and one wood wall have been identified. No additional information will be provided, bid as shown.

16 Are all doors, door frames, and window frames to be painted (Drawing A12)

AE Response: Doors, door frames, and window frames are to be painted per Plan Sheet A10. New door frames are to be painted per Plan Sheet A12.

Please confirm the only lead-based paint removal is the exterior masonry paint.

AE Response: All locations of abatements identified are located on Plan Sheet H1 and are in the Hazardous

Building Materials Assessment Report included as an Appendix in the Specifications. See RFI Questions

52 & 53.

18 What does it mean to “clean” all elements of the structure upon completion (Drawing S0)

AE

Response: See Specification Section 01 73 40 "Execution" for cleaning requirements.

19 Are the 4th and 5th floor landing plates the only landing plates being recast? (Drawing A4)

AE Response: See Plan Sheet A2/Detail 1; Plan Sheet A4/Detail 1; and Plan Sheet A5/Detail 1 for all landing plates to be recast (3 plates in total, levels 2, 4 & 5).

20 What does “treat” mean in reference to reused metal elements? (Drawing S8)

AE Response: "Treat" on Plan Sheet S8 points to Plan Sheets S9 through S11 which include the finishing system schedule.

Can we do more than 2 applications of chemical stripper if not all of the paint is removed?

AE Response: More than 2 applications of chemical stripper may be utilized in coordination with manufacturer's recommendations. Stripper products may differ in regards to the not-to-exceed dwell time; rinse completely after each application.

How should we remove paint on interior products?

AE Response: Drawings and specifications call for removal of interior coatings on cast iron & wood substrates. See Specification Section 099123 Paragraph 3.2 for preparation of wood substrate's and

Specification Section 050383 Paragraph 3.1.B for cast-iron coating removal.

Scaffold

Will the NPS allow for temporary shallow foundations to be installed to support the load of the scaffold and hoist? This may require removal and reinstallation on existing concrete and brick.

AE/Park Response: Shallow foundations will be allowed to support scaffold and hoist loads which may require installation on existing concrete or removal/reinstallation of brick sidewalk. All scaffolding loading on top of existing brick or concrete shall spread load sufficiently so as not to damage existing historic fabric. All scaffolding foundations which require removal of existing brick or concrete shall require reinstallation in-kind. Contractor is responsible for subsurface utilities. All items noted to remain in place shall be left in place and protected from construction activities unless approved by the

Contracting Officer.

Division 5

24 1. 01 35 91-3 /D / If Historic elements are to stored at the Harkers Island welcome center will the NPS be providing the temperature-controlled weather tight enclosure?

AE/Park

Response: The Park will provide marine shipping containers for storage of historic elements. While these will not be temperature controlled, they will be weather tight.

2. 01 35 91-7 /3.5 / A / 5, Requires scaled drawings to be created depicting each element as they are being removed. This is not only impractical but will add significant expense to the project. These elements are also to be lead abated, cleaned, have rust inhibitor applied and packaged for storage before leaving the island. A more practical and cost savings approach would be to label, tag and photo document the elements as they are being removed. Allow us to transport them to our facility. Here we can lead abate and take each component to white metal for inspection. They can be categorized as re-install, repair or replace. This will allow for digitally scanning if they need to be recast, scaled and drawn in an environment conducive to creating correct and detailed drawings. Providing improved detailed observations and notes for repairs or replacement as well as providing the opportunity to zinc coat any components slated for reuse or repair providing much improved stabilization of the historic fabric.

AE/Park

Response: Plans and Specifications call for documentation per response to RFI question 4.

3. Presently each tread has had a piece of C channel attached to the bottom of each tread to provide support.

Some of these in addition to the channel have L brackets attaching them to the masonry.

AE

Not Used

a. Is the Channel Iron to be removed to inspect for corrosion between the tread and the steel?

AE Response: Per Sheet Note 03 on Plan Sheets A1 trough A9 and Plan Sheet A11, Detail 2/A14 - stair tread is to be recoated. See Specification Section 099600 for cleaning requirements prior to recoating.

Channel is not to be removed from tread per Plans.

28 b. Is the Channel Iron to removed restoring the treads back to their historic condition?

AE

Response: Construction Documents do not indicate channel is to be removed. Bid as shown.

29 c. If the Channel is to remain, is it to be extended into the masonry when re-installed thus helping to support the load?

AE

Response: The channel is not modified in the Construction Documents. Bid as shown.

30 4. If a tread is removed to be replaced will a temporary tread be required while the new tread is being manufactured?

AE Response: The structure and all safety measures will be the responsibility of the Contractor once they take ownership of the site; it will be the Contractor's responsibility to maintain structural and personnel safety of the structure.

31 5. Are all the landing plates to be removed and reinstalled in order to get them to align and be flush with one another? If plate is removed for repair / reproduction will a temporary be required?

AE Response: Construction Documents do not indicate to remove all plates. Regarding temporary plates, the structure and all safety measures will be the responsibility of the Contractor once they take ownership of the site; it will the Contractor's responsibility to maintain structural and personnel safety of the structure.

32 6. Will the original light house drawings be made available?

DSC

Response: Original design documents will be provided for information only.

7. Can the underside of the decks be photographed with a drone or other methods?

AE/Park Response: The Contractor will be required to make a formal request and receive approval from the

Contracting Officer prior to use of a drone. The Park Superintended has authority to issue a permit for use of a drone and may have specific requirements or restrictions.

8. Will drawings or scope of the roof gutter / scupper / downspout be made available prior to bid?

AE Response: No additional information on the roof gutter/scupper/downspouts is available or will be provided. The Contractor is to document the gutters and scuppers per Plan Sheets SD1 and SD2 during deconstruction.

35 9. Will drawings of original balusters and hand rails be made available prior to bid?

Park/DSC Response: All available original design documents will be provided for information only as noted in RFI question 6 above. No additional information will be provided.

10. 01 40 00 Structural Test or Special Inspection ppg 9

AE

Not Used

37 a. Nondestructive Testing. AE Not Used

38 i. Does this section apply to cast features of the lighthouse structure?

AE

Response: Specification Section 01 40 00 does not apply to "cast features of the lighthouse structure".

39 ii. Ultrasonic testing is will not work for any welds on historic fabric. The alloy will fail this test regardless of the weld.

AE

Response: This is not applicable. No welding of cast iron.

40 iii. Who will be the responsible party determining the risk category of the structural elements? Will these elements be determined prior to quoting?

AE

Response: See Plan Sheet S0 for Risk Category.

41 iv. Would any structural component requiring compliance with specification be instead slated to be re-casted thus eliminating the need for weld repair?

AE

Response: This is not applicable. No welding of cast iron.

42 1. Reference Plan G3 of Construction drawings Site Plan: AE/Park Not Used

a. Will the barge loading/ unloading require a construction fence around the perimeter of the area?

AE/Park

Response: Use of a construction fence at the beach around the perimeter of the barge loading/unloading area is not practical. During active operations, it is expected that the contractor will place signage around the perimeter indicating the as hazardous for visitors, and the contractor will have a flagger/monitor to stop or redirect visitors passing on the beach.

44 b. Will the path (Road) from barge loading/ unloading require a construction fence from loading area back to limits of disturbance?

AE/Park Response: The only visitor access would be from the trail that is located east of the Summer Kitchen. A rope line and signage will be expected to keep visitors out of this area; it is not popular for visitors to go into this area.

45 c. Will the limits of disturbance (Construction area) be required to have a construction fence around the limits of disturbance?

AE

Response: See Spec Section 01 50 00 Paragraph 3.4.F for Site Enclosure requirements.

46 d. Will ground protective mats be required at barge area of unloading, protective path from construction, and actual construction area?

AE/Park Response: Ground protective mats are not required; however, any disturbance of the site, including beach and dunes is required to be returned to the same profile and conditions found upon commencement of work per Specification Section 01 11 00 Paragraph 1.3.G.

x

47 e. Due to logistical challenges of the existing brick sidewalks to remain, Will it be acceptable to remove and replace existing portions of said sidewalk as needed to accommodate equipment needs and reinstalled to match existing conditions?

AE/Park

Response: All items noted to remain in place shall be left in place and protected from construction activities unless approved by the Contracting Officer. The base of the lighthouse is located under the brick apron that goes around the lighthouse and impacting the base could cause problems.

f. Will contractors need to provide a temporary barge as referenced on sheet G3 to act as a loading dock for the project and or will contractors have use of the public dock?

AE/Park

Response: If this question is referring to crew drop off and hand carried small deliveries, it might be possible to use the ferry dock which is owned and operated by a concessioner. During the season, the ferry can run as often as every 15 minutes, and, per the concessioner's contract, the ferry cannot be impeded, delayed, or blocked. There are two interior slips that will accommodate 30'x12' boats - these slips would be available for contractor use with due consideration given to the ferry and visitors arrival and departures. Though subject to change, the operational hours are published at the following website: https://www.islandexpressferryservices.com/ferry-transportation/harkers-island-cape-lookout/

49 Please confirm contractor laydown area on land will be at the NPS visitors center provided by NPS at no cost to contractors.

AE/Park Response: Landside laydown area can be provided at no cost. The Contractor will need to coordinate and schedule with the Park for large deliveries and long term storage at this location. It is a busy harbor and supports operations throughout the Park.

Please provide a landside laydown approximate size and location that will be provided by the NPS to awarded contractor.

AE/Park Response: The lighthouse laydown area is about 26,300 square feet. The Harkers Island Harbor Area can flex from 7,000 square feet to about 15,000 square feet. The Park will work with the Contractor to provide as much temporary landside space as possible at Harkers Island given operational requirements for the marina.

Will the awarded contractor need to provide construction fencing at the Visitors center laydown area for the duration of the project?

AE/Park Response: Laydown areas are identified on Plan Sheet GS at the project site. If additional laydown areas are desired, then they must be requested after award per Spec Section 01 11 00 Paragraph 1.3.B and 1.3.C and will be required to meet Site Enclosure requirements identified in Specification Section

01 50 00.

During the site visit it was observed at the Exterior Façade of the Lighthouse there have been samples of the existing coating removed and tested. Please confirm the existing

Coating/Paint at the exterior Façade does not contain lead and or any known Hazmat.

AE

Response: The Hazardous Building Materials Assessment Report, dated November 10, 2022, included as an Appendix in the Specifications, indicates that one sample of the exterior black coating and one sample of the exterior white coating (samples PB-01 and PB-02, respectively) were tested; both samples tested below the EPA level (0.5%/w).

Please confirm that only hazmat materials that exist are those identified by sheet H.1 of the contract drawings

AE Response: In addition to Plan Sheet H1, a Hazardous Building Materials Assessment Report, dated

November 10, 2022, is included as an Appendix in the Specifications. No additional information will be provided.

RE: Spec Sec 01 35 91, part 1.5 A-3,4,5- Please identify what items that are removed that will be kept and stored and turned over to the NPS. (Lantern Glass/ Railings? Etc.)

Will the contractor need to provide storage until NPS determines a storage facility? For purposes of freight please identify a location.

AE

Response: The Contractor shall assume ALL ITEMS not being reinstalled shall be turned over to the

Park/NPS, see Plan Sheets SD1 and SD 2. See also RFI question 24.

RE: Spec Sec 01 35 23 Site Safety- Does the Site Safety

Officer need to be a full time Dedicated Safety individual and or Can Superintendent/ Foreman etc. double as the site safety officer provided they have all the correct training?

AE

Response: Per Specification Section 01 40 00 Paragraph 1.5.B.2 the Contractor's Quality Control

Supervisor may also perform other duties. No additional information will be provided.

Will NPS allow construction activities the use of public restrooms at the lighthouse during construction?

AE/Park Response: Use of the public restroom is not restricted; however on-site restrooms need to be provided for use by Contractor and DSC's Construction Management Representative. See Specification Section

01 50 00 Paragraph 2.2.D for restroom requirements.

57 Please confirm availability of electricity and water for use at the Lighthouse for construction activities by contractors for the duration of project?

AE

Response: See Specification Section 01 50 00 Paragraph 1.3 for electricity and water availability and usage requirements.

58 Will NPS provide a Boat slip for crew transport vessel to tie off every night free of charge for the duration of the project?

AE/Park

Response: See Specification Section 01 11 00 Paragraph 1.5.D for requirements.

Will contractor barge be allowed to be anchored at NPS

Visitor center for the duration of the project?

AE/Park

Response: The Contractor's barge will be allowed to be anchored at the visitor center harbor. The Park indicates there is a spot for a barge just outside the harbor and recommends a spud barge. See

Specification Section 01 11 00 Paragraph 1.5.D for requirements.

The current loading path as shown on sheet G-3 does not provide direct access to the beach without some excavation and land disturbance. Will NPS be responsible for the excavation and return of disturbed land, or will the contractor be responsible for this?

AE/Park

Response: The contractor is responsible for all repairing/restoring all site disturbances, unless otherwise stated in the Construction Document Plans and Specifications. See Specification Section 01

11 00 Paragraph 1.3.G.

Will there be any other NPS projects on the Island running during the duration of this project? What kind of coordination will there be? Will it affect any landside laydown needed by the lighthouse project?

Park

Response: There may be other NPS project on the Island during renovation of the lighthouse. The Park frequently has major projects running at the same time. The lighthouse Contractor will have dedicated space and flex space on the island and available landside.

Based on historic knowledge, will there be a time the island will be inaccessible due to tides/shoals?

Park

Response: The area is subject to hurricanes, Nor'easters, and tropical storms. The dredged channel from Harkers Island is 7 to 9 feet deep (MLT) and 100 feet wide; the Lighthouse Channel is 6 feet deep

(MLT), and 40 feet wide. Much of the remaining channel is 15 feet deep (MLT)

63 What if any permits will need to be provided by the contractor?

AE

Response: See Specification Section 01 57 23 Paragraph 3.2 for permit requirements.

64 Will the Government consider extending the bid date 1 week?

Contracting

Response: The proposal due date should be extended to April 10, 2024.

Spec section 075419 Polyvinyl-Chloride [PVC] Roofing

Project

Not Used

65 · 1. Does the engineered temporary roof deck structure as shown on sheets SD3 and SD4 meet UL 1897 requirements to be used as a substrate for FM 4450 or FM

4470 testing? 2. If no, can the roof system meet the requirements in 2.1 C and 2.1 D. but not have an FM

RoofNav number?

AE

Response: The lighthouse is not FM insured and therefore does not require a FM Global RoofNav number or associated testing. The temporary roof deck structure and diaphragm has been engineered and designed to resist uplift forces. Temporary PVC roof membrane shall be designed by

Manufacturer/GC to meet uplift requirements as specified. Specification Section 075419 will be revised in an amendment. See Spec Edit 075419 folder included in Amendment 2 ZIP file.

· Is the building FM insured?

Park Response: The lighthouse is not FM insured and therefore does not require a FM Global RoofNav number or associated testing. The temporary roof deck structure and diaphragm has been engineered and designed to resist uplift forces. Temporary PVC roof membrane shall be designed by

Manufacturer/GC to meet uplift requirements as specified.

· Since this is a temporary roof is an FM Global

RoofNav number required?

Park Response: The lighthouse is not FM insured and therefore does not require a FM Global RoofNav number or associated testing. The temporary roof deck structure and diaphragm has been engineered and designed to resist uplift forces. Temporary PVC roof membrane shall be designed by

Manufacturer/GC to meet uplift requirements as specified.

68 · Para. 2.2 A. states “PVC Sheet: ASTM

D4434/D4434M, Type IV, fabric reinforced”. Please clarify if the PVC sheet is to be scrim reinforced with a smooth back or scrim reinforced with a fleece back. The ASTM standard includes both.

AE

Response: Per ASTM, either is acceptable.

RFP Special Requirement 2: Key Personnel lists four individual positions: Project Manager, Superintendent, QC

Manager, and SSHO. Can these positions be dual hat with one individual performing multiple roles?

Contracting/PM/AE

Response: Per Specification Section 01 40 00 Paragraph 1.5.B.2 the Contractor's Quality Control

Supervisor may also perform other duties.

70 How or who will determine if cast iron historic components can be scrapped and made new vs. restored? Is there a process that will be implemented to facilitate that determination?

AE

Response: See Plan Sheets S6 through S8, Sheet Note 2.

71 Is a mortar analysis required? If not, does the NPS have a mortar analysis that can be released?

AE Response: A Mortar Analysis was performed in 2008. This mortar analysis will be provided for information only. See Mortar Analysis folder included in Amendment 2 ZIP file.

72 Section 040323-4. There appears to be a typo in the specifications, as there is no mention of lime in the mortar mix design. Please confirm that there is no lime needed in the mortar mix.

AE

Response: No lime is needed in this natural cement mortar mix.

73 SECTION B – BID SCHEDULE. Line item 0009a – Clean

Interior Brick, is this shown somewhere within the drawings? Is the intention only where masonry restoration is performed?

AE

Response: Per Plan Sheets A1 through A9, Sheet Note 02, "clean" is in reference to areas which are required to be repointed or repaired. See Specifications Sections 040322 Paragraph 3.4.F; 040323

Paragraph 3.3.A.1; and 040323 Paragraph 3.4 for repointing or repair cleaning procedures.

74 Factor 2. Please confirm Primavera P6 for the Gantt Chart is allowable.

PM/PS

Response: Yes

Is there a page limit for the Factor 2 Schedule Narrative?

Project/contracting

Response There is no page limit for Factor 2 - Schedule

76 Please confirm the Gantt Chart schedule does not count towards the page limit for Factor 2, Schedule.

Project/Contracting

Response: The Gant Chart Schedule will not count towards a page limit

Is there a page limit for the Factor 4 Safety narrative?

Project/Contracting

Response: There is no page limit for Factor 4 - Safety Narrative

The SF1442 indicates that a bid bond is not required, however the Business/Price Proposal submission requires a bid bond. Please confirm bid bond is required.

Contracting

Response: Yes, a bid bond is required per the following text included in the solicitation on page 54: "SF

24 BID BOND: Submit Standard Form 24, Bid Bond duly executed between the offeror and the bonding company. Refer to clause 52.228-1."

Please provide spec section for glass at the Lantern Level

AE

Response: See Plan Sheet S11, Detail 1 salient characteristics of glass at lantern level

Sheet E1, Electrical Notes and Legends, Alternate Bid

Pricing Notes, requests pricing for intrusion detection system and horn and strobe fire alarm system. Where should these items be included on price schedule?

AE

Response: Alternate Bid Pricing Notes on Plan Sheet E1 will be removed in an amendment. Intrusion

Detection System and Fire Alarm System are not a requirement of this contract. See Plan Sheet Edits folder included in Amendment 2 ZIP file.