Sol_140P4322R0003_Amd_0003.pdf

(x)

140P4322R0003 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

Boston MA 02129-4543

PNN

Building I-1 Charlestown Navy Yard Boston National Historical Park

NPS, NER - NE MABO

02/09/20220003

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

02/09/2022

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

A. This Amendment Number 0003 is issued to provide responses to Requests for Information, as follows:

QUESTION 1: Can the curbs (inside and outside) be poured in a separate pour from the walkway? The plans show the curbs and walkway poured monolithically which would be much more challenging than pouring them separately.

RESPONSE 1: It is permissible to cast the curb separately from the slab.

QUESTION 2: What would the concrete be sitting on? Will there be a deck as was assumed at the visit? The plans do not show a deck.

RESPONSE 2: The drawings show a formed concrete slab without metal decking. The existing

Continued ...

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

MICHELLE Yates

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 3

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140P4322R0003/0003 construction includes metal decking, and the metal decking is failing. Therefore, the proposed construction will be different than existing construction. How the GC forms the slab for pouring is GC methods and means.

QUESTION 3: The caulking that is placed between the curb and the existing building, was it tested for Asbestos?

RESPONSE 3: The existing caulking was not tested as original construction drawings were dated 1983 after asbestos was banned from use.

QUESTION 4: On the current pavers, all black pavers currently there looked to have some sort of piping underneath, the drawings do not depict any sort of piping. Can you please provide as builts of the current walkway?

RESPONSE 4: We have provided additional existing conditions photographs, ATTACHMENT NUMBER 11. It appears the approximate distance from typical water level to underside of existing walkway structure is approximately 8-9'.

QUESTION 5: On Drawings S-3, Note 3, states

"Remove, Store, Regrade subbase and reinstall brick pavers in plaza between walkway stair and

Exit stair" but there is no definitive quantity.

Can NPS provide an allowance quantity that should be carried for bidding purposes?

RESPONSE 5: GC should provide for min. 1cu.yd of

¾ minus, sub-base for any supplemental sub-base needs. Excess material can be delivered to the

Government at the end of the project.

QUESTION 6: Where can the railings be stored during construction?

RESPONSE 6: GC should plan to store railings on-site in staging area (NPS is coordinating a staging area located in the existing parking lot and canal walk off the Market Street parking area).

QUESTION 7: What is the weight limit of the walkway? Specifically, would the walkway be able to uphold certain equipment weight during construction?

RESPONSE 7: It is the Contractor's responsibility to conduct all activities such that any construction activity does not adversely

Continued ...

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

3 3

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140P4322R0003/0003 affect or damage existing elements to remain

QUESTION 8: Can the Gate be Painted in place to allow a secure area without removing it?

RESPONSE 8: Note 15/S3 states "remove, store, paint and reinstall gate".

QUESTION 9: What is the distance between the bottom of the canal to the walkway?

RESPONSE 9: We have provided additional existing conditions photographs ATTACHMENT NUMBER 11. It appears the approximate distance from typical water level to underside of existing walkway structure is approximately 8-9'.

QUESTION 10: Does the painting for the Steel

Framing require scraping?

RESPONSE 10: Bid should include all associated work with preparing the existing steel framing for new painting.

QUESTION 11: Along the Walkway (walking from

Central Street entrance towards the rear parking lot), on the right-hand side is a granite curb that is not depicted on the drawings. With the

Concrete Curb to be installed, the concrete would be too small of a piece that would leave to cracking. Please provide detail how concrete curb is to be poured in that particular area.

RESPONSE 11: GC methods and means.

QUESTION 12: Can precast curbing be used?

RESPONSE 12: It is permissible to cast the curb separately from the slab.

B. There are no other changes to this Request

For Proposal.

Period of Performance: 04/01/2022 to 09/30/2022

COR: David Lieb

EMAIL: david_lieb@nps.gov

MOBILE: 978-423-6185

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110