B.08.03 - Amendment 0002 - W912HP22B0001 - FY22 Post 45 DI Middle Cell Diking.pdf

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FY22 POST 45 DANIEL ISLAND MIDDLE CELL DIKING CONSTRUCTION
Solicitation number
W912HP22B0001
Issued by

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This document is an amendment to a federal solicitation for construction services. The solicitation is for raising dikes and berms and installing new spillway systems at Daniel Island Middle Cell Placement in Berkeley and Charleston Counties, South Carolina. The amendment makes changes to contract drawings, specifications, and measurement and payment terms. Drawing C-13 is replaced, and specifications are updated for pipe and riser connections and measurement and payment sections. Geotextile installation item numbers in the specifications are also corrected. The solicitation remains open as of September 16, 2021 for the U.S. Army Corps of Engineers Engineering District Charleston.

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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 purpose of this amendment is a Specification Change. See summary of changes.

All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 5

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

16C. DATE SIGNED

BY 13-Oct-2021

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 W912HP22B0001

X 9B. DATED (SEE ITEM 11)

16-Sep-2021

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

13-Oct-2021

CODE

U.S. ARMY CORPS OF ENGINEERS, CHARLESTON

DISTRICT, CONTRACTING DIVISION

69-A HAGOOD AVENUE

CHARLESTON SC 29403

W912HP 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912HP22B0001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been modified:

SUMMARY OF CHANGES

Amendment 0001 – Summary of Changes

1. CONTRACT DRAWINGS:

DELETE Contract Drawing Sheet C-13, and REPLACE with Contract Drawing Sheet C-13 bearing the notation REVa (see attachment).

2. SPECIFICATION SECTION 35 41 00.00 34, DIKE CONSTRUCTION

DELETE PARAGRAPGH 2.16, “PIPE/RISER CONNECTION” contents:

“The connection between plastic pipe and spillway riser shall consist of a polyethylene flange connector or stub end connector (SDR 26 rating) with a metal slip-on back-up ring (or back-up flange) which shall be stainless steel or ductile iron which has been hot-dipped galvanized. Stainless steel material shall meet ASTM A563 “Standard Specification for Carbon and Alloy Steel Nuts”. Ductile iron material shall meet ASTM A536 “Standard Specification for Ductile Iron Castings”. The back-up ring shall be convoluted, rated at 150 lb. and conform to ANSI B16.5 “Standards of Pipes and Fittings” vital dimensions.”

REPLACE with:

“The connection between plastic pipe and spillway riser shall consist of a polyethylene flange connector or stub end connector (SDR 26 rating) with a metal slip-on back-up ring (or back-up flange) which shall be Type 316 stainless steel. The back-up ring shall be rated at 150 lb. and conform to ANSI B16.5 “Standards of Pipes and Fittings” vital dimensions.”

3. AUTOCAD FILES – See Attachemnt - B.08.03 – AutoCad Files

4. SITE VISIT SIGN IN SHEET – See Attachment - B.08.03 – Site Visit Sign In sheet

Amendment 0002 – Summary of Changes

1. SPECIFICATION SECTION 35 41 00.00 34, DIKE CONSTRUCTION

DELETE PARAGRAPGH 1.3, “MEASUREMENT AND PAYMENT” contents:

“Payment items for the work of this contract will be made as listed in the Bidding Schedule and described below. All costs for items of work, which are not specifically mentioned or are incidental to completion of the work, are to be listed in a particular lump sum or unit price payment item that is most closely associated with the work involved. The lump sum price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, testing and reports, and for performing all work required for which separate payment is not otherwise provided.

Following is the work covered by the contract price:

ITEMS 0001, MOBILIZATION AND DEMOBILIZATION, shall include all cost connected with moving all the Contractor's plant and equipment to and from the construction site. This cost will also include clean-up of the site at completion of contract. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0002, SITE PREPARATION – DIMC PA, shall include all cost for related site preparation, including clearing, ditching, drainage, disking, stripping of crust materials, windrowing, construction of haul roads, stockpiling of sandy materials (if any) to drain, and any other items incidental to furnishing adequate suitable backfill/diking materials. It shall also include all cost for initial surveys of the site. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0003, EARTHWORK – DIMC PA - RAISE DIKES AND BERM, shall include all cost for earthwork, including loading, hauling, transportation, dumping, placement, spreading, compacting, testing, grading and dressing of fill, and any other items incidental to completion of construction of dike, berm, pipe ramps, finger/spur dikes, and ramps. It shall include all cost for relocation of interior perimeter ditches, including any culverts necessary to ensure positive drainage under pipe ramps and finger/spur dikes. It shall also include all cost for surveying: establishing horizontal and vertical control for dike alignment, including grading of dike, berm, etc., and final as-built survey for the dike and berm. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0004, DEMO EXISTING SPILLWAY SYSTEMS, shall include all cost for excavation, removal, backfill, and disposal of existing spillway risers, piping, wooden walkways, splash pads, and pipe supports.

Concrete foundation pads may be abandoned in-place. Spillway riser sections may be reused in new spillways only with COR approval. It shall also include the cost of compaction of backfill and testing of backfill to confirm compaction. This work item shall be measured for payment by EACH.

ITEMS 0005, DEMO PREVIOUSLY ABANDONED SPILLWAY PIPES, shall include all cost for excavation, removal, and backfill of existing previously abandoned spillway pipes, and disposal of same. It shall also include the cost of compaction of backfill and testing of backfill to confirm compaction. It shall also include all cost for surveying and locating existing previously abandoned spillway pipes. This work item shall be measured for payment by EACH.

ITEMS 0006, INSTALL NEW 4x4 SPILLWAY SYSTEMS, shall include all cost for new spillway riser fabrication, coating, and assembly, excavation/backfill for placement of foundation pad and piping, installation of concrete foundation pad, piping, pipe supports, installation of splash pad, and construction of wooden walkway. It shall also include the cost of compaction of backfill and testing of backfill to confirm compaction. It shall also include all cost for surveying: establishing horizontal and vertical control for placement of spillway system, including final as-built survey for the spillways. This work item shall be measured for payment by EACH.

ITEMS 0008, AGRICULTURAL LIMESTONE, delivered to and stored at the job site shall be based on number of bags furnished multiplied by the weight per bag. Payment will be for actual quantities used based upon soils tests and actual area grassed. This work item shall be measured for payment by the TON.

ITEMS 0009, FERTILIZER, delivered to and stored at the job site shall be based on number of bags furnished multiplied by the weight per bag. Payment will be for actual quantities used based upon soils tests and actual area grassed. This work item shall be measured for payment by the TON.

ITEMS 0010, GRASSING, shall include all cost associated with establishing a stand of grass, minus cost of limestone and fertilizer material. Costs include ground preparation, soils tests, spreading and incorporation of limestone and fertilizer, seeding, tilling, reseeding, etc. Area grassed will be measured in the following manner: The actual slope distance of all grassed side slopes will be added to the actual top widths actually grassed and the sum will be multiplied by the linear distance of dike grassed (using dike stationing) to obtain pay acreage. This work item shall be measured for payment by the ACRE.”

REPLACE with:

“Payment items for the work of this contract will be made as listed in the Bidding Schedule and described below. All costs for items of work, which are not specifically mentioned or are incidental to completion of the work, are to be listed in a particular lump sum or unit price payment item that is most closely associated with the work involved. The lump sum price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, testing and reports, and for performing all work required for which separate payment is not otherwise provided.

Following is the work covered by the contract price:

ITEMS 0001, MOBILIZATION AND DEMOBILIZATION, shall include all cost connected with moving all the Contractor's plant and equipment to and from the construction site. This cost will also include clean-up of the site at completion of contract. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0002, SITE PREPARATION – MC, shall include all cost for related site preparation, including clearing, ditching, drainage, disking, stripping of crust materials, windrowing, construction of haul roads, stockpiling of sandy materials (if any) to drain, and any other items incidental to furnishing adequate suitable backfill/diking materials. It shall also include all cost for initial surveys of the site. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0003, EARTHWORK – MC - RAISE DIKE AND BERMS, shall include all cost for earthwork, including loading, hauling, transportation, dumping, placement, spreading, compacting, testing, grading and dressing of fill, and any other items incidental to completion of construction of dike, berm, pipe ramps, finger/spur dikes, and ramps. It shall include all cost for relocation of interior perimeter ditches, including any culverts necessary to ensure positive drainage under pipe ramps and finger/spur dikes. It shall also include all cost for surveying: establishing horizontal and vertical control for dike alignment, including grading of dike, berm, etc., and final as-built survey for the dike and berm. This work item shall be measured as 1 Job, Lump Sum.

ITEMS 0004, REMOVE PREVIOUSLY ABANDONED SPILLWAY PIPES, shall include all cost for excavation, removal, and backfill of existing previously abandoned spillway pipes, and disposal of same. It shall also include the cost of compaction of backfill and testing of backfill to confirm compaction. It shall also include all cost for surveying and locating existing previously abandoned spillway pipes. This work item shall be measured for payment by EACH.

ITEMS 0005, INSTALL NEW 4x4 SPILLWAY SYSTEMS, shall include all cost for excavation, removal, backfill, and disposal of existing spillway risers, piping, wooden walkways, splash pads, and pipe supports. Concrete foundation pads may be abandoned in-place. Spillway riser sections may be reused in new spillways only with COR approval. It shall also include all cost for new spillway riser fabrication, coating, and assembly, excavation/backfill for placement of foundation pad and piping, installation of concrete foundation pad, piping, pipe supports, installation of splash pad, and construction of wooden walkway. It shall also include the cost of compaction of backfill and testing of backfill to confirm compaction. It shall also include all cost for surveying: establishing horizontal and vertical control for placement of spillway system, including final as-built survey for the spillways. This work item shall be measured for payment by EACH.

ITEMS 0007, AGRICULTURAL LIMESTONE, delivered to and stored at the job site shall be based on number of bags furnished multiplied by the weight per bag. Payment will be for actual quantities used based upon soils tests and actual area grassed. This work item shall be measured for payment by the TON.

ITEMS 0008, FERTILIZER, delivered to and stored at the job site shall be based on number of bags furnished multiplied by the weight per bag. Payment will be for actual quantities used based upon soils tests and actual area grassed. This work item shall be measured for payment by the TON.

ITEMS 0009, GRASSING, shall include all cost associated with establishing a stand of grass, minus cost of limestone and fertilizer material. Costs include ground preparation, soils tests, spreading and incorporation of limestone and fertilizer, seeding, tilling, reseeding, etc. Area grassed will be measured in the following manner: The actual slope distance of all grassed side slopes will be added to the actual top widths actually grassed and the sum will be multiplied by the linear distance of dike grassed (using dike stationing) to obtain pay acreage. This work item shall be measured for payment by the ACRE.”

2. SPECIFICATION SECTION 31 05 19.00 34, GEOTEXTILE FOR EMBANKMENT

DELETE TEXT IN PARAGRAPH 1.3, “MEASUREMENT AND PAYMENT” contents: “ITEM NO 0007, INSTALL GEOTEXTILE…”

REPLACE WITH: “ITEM NO 0006, INSTALL GEOTEXTILE…”.

(End of Summary of Changes)

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