LARGE POWDER MAG NPS RESPONSES 08-04-2020_0002.pdf

8/4/2020

RESPONSES TO CONTRACTOR QUESTIONS

Preservation and Stabilization of the Large Powder Magazine at Dry Tortugas National Park Solicitation No: 140P5420R0028

1. When does NPS anticipate award of this project?

Q1 Response: Award is anticipated before the end of August.

2. When does NPS anticipate issuing NTP for this project?

Q2 Response: Issuance of the NTP will be discussed with the winning bidder prior to or during the pre-construction meeting.

Q3. Period of performance is designated in a couple locations on solicitation documents. SF1442 states 240 days is provided for POP, as well as stating that POP is from 7/1/2020 to 11/30/2022. SOW provides further designation of the POP on page two, stating that work “shall be completed from approximately July to Nov of any calendar year from 2020 to 2022. Timing of the work shall be coordinated with the COR and will be based on the availability of government housing.” Please confirm or state how the work schedule to complete the project in this three year time frame shall be determined understanding the contractor requires a sufficient time frame to start and complete the project in one continuous operation with one single mobilization and one demobilization?

Q3 Response: POP shall be revised to 9/1/2020 to 11/30/2022. The work in this solicitation shall be completed in a single mobilization. Timing of the work shall be coordinated with the COR and shall be subject to availability of government housing. Period of performance shall be in any calendar year from 2020 to 2022.

Q4. What requirements or special provisions will be required of the contractor understanding the project will be conducted during hurricane season?

Q4 Response: Refer to final specification’s appendices amendment, Everglades and Dry Tortugas Hurricane Plan (2020).

Q5. Will the final work schedule for time on Fort Jefferson by the contractor and approved by NPS allow the contractor the opportunity to complete the project in one mobilization and one demobilization? Or will NPS require the contractor to split up this project into phases over the three year time span?

Q5 Response: NPS will require the EOQ and Front 4 Mag work be completed in one continuous operation with one single mobilization.

Q6. Specification section 01 11 00 Summary of Work, designates structures included in the contract that are not consistent with the SOW document and drawings included in the solicitation package. Please clarify which structures at Fort Jefferson and the extent of work for each structure that is included in this solicitation?

Q6 Response: Scope of work is limited to the Large Powder Magazine as described in Box 10 of SF 1442, Solicitation No. 140P5420R0028.

Q7. Section 01 11 00 states that the contracting mooring area is shown on the drawings. There are no site plans to designate contractor mooring, staging, access routes to the work zone or similar essential information for operation of the project. Please clarify/provide those drawings and/or information to clearly define and provide direction to the contractor for the aforementioned items.

Q7 Response: A cover sheet and site plan will be provided as an amendment for this solicitation. Once the contract has been awarded, a pre-construction meeting may alter or modify mobilization activities shown on the site plan, considering the nature of the site. All loading and unloading shall occur at the dock only during hours that don’t affect park/concessionaire operations, temporary storage of materials will be at the North Coaling dock or in (COR approved) designated staging area adjacent to EOQ.

Q8. For mobilization and demobilization of the project, is beach landing a barge permitted to avoid disturbing access to the main dock?

Q8 Response: Temporary beach access for unloading and loading only will be permitted at seaplane beach before at 8AM and after 5:30PM daily.

Q9. What is the maximum draft of a boat/ship that can be used to mobilize/demobilize items to/from Fort Jefferson?

Q9 Response: Contractor can dock a vessel that is maximum 110' in length for the purpose of loading and unloading only while the Yankee-Freedom Ferry is docked during the hours of 10:30 am to 2:45 pm. A larger vessel can use the dock for unloading and loading only outside of the Yankee Freedom's Fort Jefferson's docking schedule. Overnight mooring is allowed in harbor in front of Fort Jefferson at Front 3.

Q10. Specification TOC contains a section for Bracing & Shoring. Please confirm that section has been deleted because it is no longer needed?

Q10 Response: The section in the TOC “Bracing and Shoring” for this solicitation shall be removed from the TOC.

Q11. SOW document states that volunteer plants & vegetation should be removed from the large powder magazine structure. There is an abundance of plants growing on the roof level, similar to the green roof the primary fort structure. Please confirm if those plants are to remain or to be removed?

Q11 Response: All organic material shall be removed.

Q12. SOW document states that plants should be removed in a manner that prevents regrowth. There is no guidance in the specification for how to accomplish this. Is this up to the contractor to determine? Or doesn’t NPS want input on what chemicals/methods are used to eliminate regrowth of plants on the masonry structure?

Q12 Response: The Contractor shall submit to the COR an Organic Material Removal and Treatment Plan for approval by NPS.

Q13. Notes on sheet A232 states that approximately 60% of the principal arch is to be repointed. What sides or elevations does this include? Does this include the inside or ceiling of the arch?

Q13 Response: Refer to Lord Aeck and Sargent architectural drawings for areas to be repointed.

Q14. Hatched areas on the drawings are a little difficult to decipher to determine what areas are to be repointing and what areas are not. Is the contractor required to perform any repointing on the ceiling of the primary arch?

Q14 Response: Refer to Lord Aeck and Sargent interior elevations for area of interior arch ceiling to be repointed.

Q15. Is the contractor required to perform repointing on the top side of the primary arch? If so, how much?

Q15 Response: Refer to Lord Aeck and Sargent exterior elevations.

Q16. Please confirm the floor shown, on detail 1/A131 requires approximately 50% repointing throughout the entire floor plan?

Q16 Response: 1-A131-LARGE DETACHED MAGAZINE FLOOR PLAN does not designate any graphic boundary/representation/notation of areas to be repointed.

Q17. At the site visit it was observed that were cracks present in the various sections of wall that are not noted on the drawings. Accordingly, if there are cracks in the walls or other damaged, faulty conditions not shown on the drawing sheets that need repaired how will those conditions be documented and handled once the contract is awarded?

Q17 Response: Contractor shall bid work based on the contract documents provided in this solicitation.

Current conditions may be different than what is shown on Lord, Aeck and Sargent’s drawings dated 8/2017. Awarded Contractor shall submit RFI's to NPS regarding possible revised scope of work.

Q18. Specification for this solicitation contains section 06 40 00 for architectural wood work. Please confirm there is no architectural wood work in this contract? If there is architectural wood work, please describe extent of scope.

Q18 Response: Architectural woodwork NOT is required as part of this solicitation.

19. Specification for this solicitation contains section 05 21 00 for structural steel. Please confirm there is no steel requirements for this contract?

Q19 Response: Structural Steel is NOT required as part of this solicitation.

Q20. Drawing sheets hatch marks for Brick in Section and “areas of concentrated mortar loss or deterioration requiring repointing” are the same diagonal hatch. This can be misleading/confusing the areas to be repointed. Please clarify all areas/quantities of repointing so there is no confusion on quantities and locations of repointing throughout the Large Detached Powder Magazine?

Q20 Response: Architectural drawings cannot be revised. Contractor shall bid on the documents provided.

Q21. Section L & M of the solicitation provide limited criteria for the contractors technical proposal. Are there specific criteria required for review by NPS of the contractor’s technical proposal or approach to the contract?

Q21 Response: Section L&M provide everything bidding contractors need to know in order to present a successful proposal for evaluation.