Amendment 0005.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The above numbered solicitation for the Algiers Dolphin Replacement has been amended to:

1. Provide responses to contractor questions. No addditional questions will be accepted. Bid opening will be held Thursday, 29 February

2024 at 11AM CST, all bids are due at 10AM CST.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 26-Feb-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912P824B0002

X 9B. DATED (SEE ITEM 11)

15-Dec-2023

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer 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 Items 8 and 15, and returning 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 telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

26-Feb-2024

CODE

CONTRACTING DIV- CHIEF

7400 LEAKE AVENUE, ROOM 172

NEW ORLEANS LA 70118-3651

W912P8 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P824B0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

(End of Summary of Changes)

Algiers Lock Dolphin Replacement Solicitation W912P824B0002

Questions and Responses

Received on 21 February 2024

1) In response to Amendment 0004, questions received on February 20, Question #3, the addendum refers to the respondent to the revised drawing on Sheet S-101. The location of the quarter round dolphin on the revised Sheet S-101 re-affirms the question proposed in Amendment 4, please see the attached marked up drawing for an illustration of pile conflict. If the intent of the optional guidewall is to be installed adjacent to the existing concrete approach wall, please revise Sheets SD- 101, S-101, and C-0002 to illustrate the new guidewall as an extension to the concrete approach wall. All three drawings indicate for the new timber guidewall to be in the same footprint as the concrete approach wall.

RESPONSE: The new timber guidewall is to be an extension of the concrete approach wall and will be installed adjacent to the concrete approach wall. The existing concrete guidewall will not be modified under this contract.

2) Amendment 0004 provides a revision to Sheet S-103 Section B. The filler plate shall now be a 12”x8”x1-1/2” welded to the pile prior to driving versus the 8”x8”x1-3/4” filler plate initially called out (shown in Elevation A in the base drawing set, and the revised S-103). The filler plates are intended to fill the gap between the face of the sheet pile and the 1” flat bar, the driving factor is the plate’s thickness. The only dimension that affects the filler plate connection to the straps is the thickness of the plate, the response of “A continuous plate will not fill these gaps” is not accurate.

Ensuring the straps are installed on the correct orientation / grade is of the essence. If hard driving conditions are met, there’s a significant chance that the filler plates will not line up if installed prior to driving.

a) If the filler plates are to be welded to the pile prior to driving, will it be permissible to have a continuous filler plate welded to belly of the sheets as initially requested in Amendment 0002, Question 10 (Jan 4)?

RESPONSE: It is acceptable to weld continuous filler plates to the belly of the sheet pile sheets. This change shall be coordinated with the Contracting Officer after award. To clarify the response to the question in Amendment 002, it was intended to convey that continuous filler plates extending around the circumference of the dolphin are not allowed.

3) Per Amendment 004, the Government’s Response to Question 1, underwater welding of the horizontal straps to the filler plates shall be in accordance with AWS D3.6, Classification A.

a) Per AWS D3.6 Clause 9, Class A welds are suitable for structural applications involving design stresses comparable to similar above water applications; underwater conditions in the MS River, including suspended solids such as mud, sand and organic material will reduce welder visibility and potentially cause quality issues with structural welds performed in that environment. Please confirm the Class A weld requirement for any steel strap to filler plate welds, if river levels do not allow welding in the dry.

b) Per AWS D3.6 Section 8.1.3, bid documents shall show the examination required for each weld where other than visual examination is required. Is non destructive examination of welds other than visual required for any underwater welds? If so, please provide the type and frequency of weld inspection. Also, please specify requirements for inspector-divers

c) Are third party underwater inspectors required for visual inspections?

RESPONSE: a) Class A weld requirements for the steel strap to filler plate welded connections is confirmed if river levels do not allow welding in the dry. b) As per Specification Section 05 50 03.00 12, Para. 3.5.2 “Only visual examination is required for all underwater welds.” c) Third party inspectors are not required, however as per Specification Section 05 50 03.00 12, Para. 3.4.1 “Only CWI’s shall perform Visual Inspection.”

4) Per Amendment 004 response to Question 16, the Government states that if river water levels prevent painting of the sheet pile strapping, a request for time extension shall be submitted in accordance with Section 01 32 01.00 12 and Question 17 response states that the majority of painting can be performed prior to installation (black coating only). In addition, Amendment 04 plan revision Sht S-103 Note 4 states that surfaces to be painted that will be inaccessible after construction, erection, or installation operations are completed shall be painted before they become inaccessible.

a) To install the yellow striping on the black pile coating per the angle and width shown on

DOLPHIN PAINT DETAIL on Sht 103, the painting must be performed after pile and strap installation. This work is subject to fluctuating river conditions which may not allow completion of the entire scope of work at one time. Note 4 directs the Contractor to execute the work in an out-of-sequence logic / schedule, which will result in unforeseen additional time impact / cost to the Contractor that will not be reimbursed by the Owner. The containment enclosure that is required to install the yellow stripping will rely on primary resources along the critical path. As Question 16 addresses the concern of time extensions, please confirm that Note 4 is not equitable between the Owner and Contractor and can be removed to its entirety.

RESPONSE: Note 4 on S-103 shall remain and it refers to the System 6-A-Z paint system only. Surfaces that will be inaccessible after installation are to be painted with System 6-A-Z prior to installation. The surfaces that are to receive yellow striping will be accessible after installation, pending the river level. As stated in Amendment 003, if river water levels prevent painting of the sheet pile striping per the awarded contract, a request for time extension should be submitted in accordance with Specification Section 01 32 01.00 12, Paragraph 3.8 REQUESTS FOR TIME EXTENSIONS.