A.01.24_Spillbox2_Solicitation_Amendment_1.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

W91236-19-B-0027 Craney Island Spillbox #2 Replacement Project, Portsmouth, Virginia, Invitation For Bids is hereby amended as follow s:

a. Changes and Clarifications in section 00 21 00, "Project Description" are hereby incorporated.

See full breakdow n of changes and clarif ications in Section 00 21 00

b. Updated set of Draw ings (FINAL_CISB_DRAWINGS_7_25-19) uploaded to FBO BIZ OPS on 25 July 2019 is applicable to in this amendment.

Contracting POC: Alexander L. Loi (757) 201-7797, email: alexander.l.loi@usace.army.mil

1. CONTRACT ID CODE PAGE OF PAGES

J 1 3

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

16C. DATE SIGNED

BY 26-Jul-2019

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 W9123619B0027

X 9B. DATED (SEE ITEM 11)

11-Jul-2019

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-Jul-2019

CODE

USA ENGINEER DISTRICT, NORFOLK

803 FRONT STREET

NORFOLK VA 23510-1096

W91236 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W9123619B0027

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 21 00 - INSTRUCTIONS

The following have been added by full text:

PROJECT DECRIPTION AMENDMENT

The following Language in section 00 21 00, “Project Description” is here by modified as follows:

1. Delete the following sentence: “Two borrow sites found at the north-east and south-east corners of Craney contain layers of material from different dredging operations near the Norfolk Harbor”.

Replace deleted sentence with the following sentence: “Borrow areas are located within the limits of Craney Island site and will be provided by the Government. Exact locations of borrow areas will be determined and provided by the facility manager during the pre-construction conference”

The following Language in Section 00 21 00, “Project Description” is here by modified as follows.

2. Add the following sentence at the end: “Partial demolition of the existing SB#2 and its pipelines shall be performed sequentially to the construction of new spillbox#2 and its outfall pipelines as the new spillbox must be fully operational before the existing one can be taken out of service.

The following have been modified:

PROJECT DESCRIPTION

The six spillboxes found on or near the west side dikes are used to drainclarified water from the three holding cells down to an outfall structure that drains into the bay using four 36-inch corrugated metal pipes (CMP).

A mix of water and dredge material is pumped into the cells from the eastside dikes which then slowly deposits sediments as it drains east-to-west across the cells where clarified surface water can be drained from the cells through the spillboxes. There are two main designs for the existing spillboxes: 1) the older concrete and steel structures embedded in the dike walls facing the interior cells; and 2) the newer free standing steel structures installed in the sediment cells to permit drainage through all four spillbox sides. This contract includes: 1) the partial demolition of the existing spillbox and its four outfall pipelines; and 2) the construction of a new free-standing spillbox in the sediment cell and its four outfall pipelines.

There are two separate construction areas: 1) partial demolition of the existing Spillbox #2 which is embedded in the dike wall on the interior cell side and associated outfall pipelines in the north-west corner of the south cell;

and 2) construction of a new free-standing Spillbox #2 just south of the existing spillbox and approximately 350' east from the main dike into the cell; this includes four new high-density polyethylene (HDPE) outfall pipes and a riprap outfall structure supported by marine filter mattresses. See Section 31 00 01 EXCAVATION, FILLING AND BACKFILLING FOR SPILLBOX STRUCTURES for information on construction of the new free-standing spillbox. See Section 31 00 02 EXCAVATION, TRENCHING AND BACKFILLING FOR OUTFALL PIPES for both the removal of the existing spillbox's outfall pipes and the installation of the new spillbox's outfall pipes.

Borrow areas are located within the limits of Craney Island site and will be provided by the Government. Exact locations of borrow areas will be determined and provided by the facility manager during the pre-construction conference. The top of the material is around the same elevation as the adjoining dikes' roadways. The Contractor is to excavate, test, mix as necessary, and haul material from the borrow site that is deemed satisfactory impervious fill or select fill for placement on the dike. Impervious fill will be used as backfill material for the dike center core at both sites: site of removal of the existing Spillbox #2 pipelines and site of placement of the new Spillbox #2

W9123619B0027 pipelines. Select fill will be used for construction of an access road at the new Spillbox #2 and backfilling at the existing Spillbox #2 site. Sufficient fill materials are available in the on-site borrow areas to complete construction.

Partial demolition of the existing SB#2 and its pipelines shall be performed sequentially to the construction of new spillbox#2 and its outfall pipelines as the new spillbox must be fully operational before the existing one can be taken out of service

(End of Summary of Changes)