2022-0708_140P2022R0049_-_Contractor_Question_Set_5_0003.pdf
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- Solicitation number
- 140P2023R0023
About this file
This document contains questions and answers regarding a federal solicitation to restore the Dorchester Heights Monument and hardscapes. The solicitation is issued by the National Park Service for project number 140P2023R0023. The questions and answers provide clarification on the scope of work, which involves demolishing and removing two stone storage containers, specifications for materials like zin-tin alloy-coated copper sheeting and epoxy-coated reinforcing steel, locations for high-performance coatings, confirmation of optional items, and clarification regarding the scope of work for existing marble cladding. The document clarifies details to inform prospective contractors' responses to the solicitation.
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Text version
140P2022R0049 6/30/22
Q&A
Discipline Sheet Detail Spec Description Response:
1 Contracting G0.2 Please clarify if there is any scope of work under this project to dispose of the two stone storage containers or if they are to remain in place.
Storage Containers should be demolished and removed.
2 Contracting G0.2 01 50 00 Drawing G0.2 shows a Contracting Officers Field Office, but there is no mentioning of the office under 01 50 00. Please clarify this is NIC or please provide specifications
Contracting Officers Field Office has the same size and requirements as the Contractors Trailer
3 Specifications 5 2.4.B.3 07 61 00 In the Amendment 6 07 61 00 Specification, it removed Lead-Coated Copper Sheeting and replaced it with Zin-Tin Alloy-Coated Copper Sheeting. In Section 2.4, B, 3, it says "Fasteners for Lead-Coated Copper Sheet: Copper, Hardware, Bronze, or Series 300 stainless steel." Does this still apply for the Zin-Tin Alloy-Coated Copper Sheet?
Response: Yes. Other fasteners may be permitted as approved by the manufacturer.
4 Specifications 1.3.A.2 31 63 33 In Specification 31 63 33, section 1.3.A.2 calls for all reinforcing steel to be epoxy coated.
Please confirm reinforcing steel for micropiles must be epoxy coated Confirmed
5 Architectural 09 96 00 In Specification 09 96 00 in section 1.2 Summary, it says high-performance coatings will be on concrete and CMU. The drawings do not call out where the high-performance coatings will be on the concrete or the cmu. Please provide the locations where the high-performance coatings will be located on the concrete and the concrete masonry units.
Response: The high performance coating are to be used for the metal elements such as the stairs and railing. No high performance coating will be applid to the concrete or CMUs.
6 Architectural Please confirm that the new wall-mounted hand rails at the existing square steel stair are part of Bid Option G (CLIN 10)
Confirmed
7 Structural S6.00 a On Drawing S6.00 of the Hardscape drawings, Detail A shows the drilled micropiles and the pile cap. The Pile cap seems to have a 90 degree reinforce bar, that also goes into the micropile. The micropile top will be cut once cured, reinforce bar wont be able to be installed. Please provide an alternate pile cap connection detail.
The micropile top can be cut prior to grouting. Pile cap connection detail shall be maintained as shown on Detail A Sheet S6.00
8 Amendment 08 Q&A responses #17 and #18 related to the granite stair tread details indicate that this is not an option. The revised contract price schedule still lists this Option A as CLIN 6.
Please confirm whether this option should be deleted and provide an updated contract price schedule as appropriate
CO,We answered. It is an option
9 R1.1-R1.4 The Masonry restoration drawings indicate everything below level 2 balconies are part of Alternate Option B. This does not line up with the CLIN descriptions. Please confirm this is a mistake and everything below the level 2 balconies should be included with Option C.
This is and old question
10 General Please clarify whether there is any scope of work in this project for the existing marble cladding (i.e. Cleaning)) on the wall at the perimeter of the plinth.
Bid plans and specs
Questions
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