B3_Amend-0002_W9126G-16-B-0024.pdf

W45VAK61259696

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 solicitation is hereby amended as follow s: See pages following:

BID OPENING REMAINS ON 24 AUG 2016 @ 2:00 P.M. LOCAL TIME.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 8

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

16C. DATE SIGNED

BY

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 W9126G-16-B-0024

X 9B. DATED (SEE ITEM 11)

25-Jul-2016

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, 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 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

28-Jul-2016

CODE

US ARMY CORPS OF ENGINEERS FORT WORTH

2000 FORT POINT ROAD

GALVESTON TX 77550-1229

W9126G 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

X

W9126G-16-B-0024

A0002-2

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

1. The specifications for Solicitation No. W9126G-16-B-0024, Houston Ship Channel, Texas, in Chambers County, Texas, Deferred Environmental Restoration M-7/8/9 and M-10, are hereby amended as follows:

a) Specifications.

(1) SECTION 01 00 10, SUMMARY OF WORK – The enclosed SECTION 01 00 00, entitled SUMMARY OF WORK, supersedes that issued with this Solicitation.

2. This amendment shall be attached to and become a part of the solicitation.

1 Encl:

1. SECTION 01 00 10, SUMMARY OF WORK

SWG FILE NO.:HSC 401-553 SOLICITATION NO.: W9126G-16-B-0024

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 00 10

SUMMARY OF WORK

PART 1 GENERAL

1.1 MAINTENANCE DREDGING

1.2 NEW WORK DREDGING

1.3 DIKE REHABILITATION

1.4 RETENTION DIKES

1.5 SPILLBOXES LOCATED AT ATKINSON MARSH CELLS M7/8/9 & M10

1.6 GORINI MARSH CIRCULATION CHANNEL

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section Table of Contents --

SECTION 01 00 10 Page 1

(TO ACCOMPANY AMENDMENT NO. 0002 TO SOLICITATION NO. W9126G-16-B-0024)

SECTION 01 00 10

SUMMARY OF WORK

Amendment No. 0002

PART 1 GENERAL

(AM#2) A pre-bid teleconference is schedule for Thursday, 04 August 2016, at 9 A.M. (CDT). Bidders may phone in or come in to the District.

Meeting Access information is:

USA Toll-Free: 888-204-5984 Access Code: 8149390 Security Code: 2016

US Army Corps of Engineers Jadwin Building, Executive Conference Room 2000 Fort Point Road Galveston District Galveston, TX 77550

Galveston District has a security gate located on Fort Point Rd., and requires all occupants of the vehicle to have a valid driver's license for entry.

The scope of work includes Maintenance Dredging Bayport Ship Channel Station 150+00 to 239+22 to PA 15, with dredged maintenance materials placed into PA 15.

Following this shall be the rehabilitation of the containment dikes of Atkinson Marsh Cells M7/8/9 and M10. The rehabilitation shall be accomplished by DER Borrow Bayport Ship Channel Station 211+15 to 239+22 to Atkinson Marsh Cells M7/8/9 and M10 (referred to in this Section as: DER BSC Borrow), where new work borrow dredging shall occur in the southern Flare of the Bayport Ship Channel (BSC), between the indicated stations, from the existing 3,000 foot radius to a 4,000 foot radius as shown. New work materials shall be hydraulically pumped to rehabilitate the dikes.

The work of DER Borrow Houston Ship Channel Station 26+484 to 30+089 to M7/8/9 and M10, as well as DER Borrow Houston Ship Channel Station 26+484 to 30+089 to PA 14 (collectively referred to in this Section as: DER HSC Borrow), includes where new work borrow dredging shall occur in the Houston Ship Channel (HSC) located along the eastern side of the HSC at Beacon 76 between the indicated stations. Should the new work materials from the BSC be depleted prior to the completion of the rehabilitation of M7/8/9 and M10, the quantities exercised of the new work HSC materials may be used to complete the rehabilitation, or they may be stockpiled as approved by Contracting Officer. The quantities exercised shall be equally placed into each of the two alternate hydraulic fill berms located on the north and south sides of PA 14 as shown on the plans.

Maintenance Dredging Bayport Ship Channel Station 180+00 to 239+22 to M10 will require the bid quantity to be dredged and placed into M10.

SECTION 01 00 10 Page 2

Additional scope of work items exist and are to be performed as a part of the above described work, and as defined within the applicable plans and sections of these specifications pertaining to the parts they are ancillary to.

The Contractor shall be aware of and take necessary measures to avoid impacting the various pipelines that traverse the construction areas.

Several contractors may be operating in the area. Dredge discharge corridors and exclusions are provided on the Plans and/or described in these specifications and shall be taken into account by the Contractor submitting a bid. Specific scopes of work for each of these elements are further described in the specifications with a general description of each below.

Contractors wishing to successfully bid on this work must have the demonstrated capability of a dredge production in hard new work materials on a line of over 30,000 linear feet at a minimum average rate of 10,000 CY/day.

1.1 MAINTENANCE DREDGING

Maintenance dredging consists of furnishing plant, labor, materials, and equipment and performing the work required by these specifications, schedules, and plans forming parts thereof for the performance of maintenance dredging. The required depth is minus 48.5 feet MLLW with two feet of allowable overdepth. Maintenance dredging will occur under Schedule No. 1, beginning at Station 150+00, working towards increasing station to allow for the required 5 nautical miles spacing between dredges.

The material excavated shall be transported and deposited into PA 15 as designated on the plans. The end of the discharge pipe shall extend not less than 200 feet into the placement area as measured from the centerline of the perimeter dike at the general location shown on the plans or as otherwise indicated by the Contracting Officer. During the course of dredging, the Contractor shall monitor the existing operating drop-outlet structures (spillboxes) and shall adjust the boards as necessary to maintain water quality as specified herein. The spillbox at approximate PA 15 dike Station 49+00 is inoperable and shall be protected.

Note that the previously unimproved BSC channel and Flare has been previously mined at a minimum to minus 52.5 feet MLLW between Station 150+00 to 239+22 during 2002-2003 as shown on the plans. Materials within the previously unimproved channel template and above the previously dredged surface should be considered soft shoaled materials. The channel has been recently improved to widen the channel from approximate Station 221+00 inbound by 100 feet. A combination of new work and soft shoaled materials may be encountered in this area.

At the end of all maintenance and new work borrow dredging, Maintenance Dredging Bayport Ship Channel Station 180+00 to 239+22 to M10 (Option No.

2) may be exercised depending on shoaling and funding and placed into Atkinson Marsh Cell M10. The end of the discharge pipe shall be moved to three separate discharge corridors as directed by the Contracting Officer but generally along the southern dike, the southeast corner, and the northeast corner. If new work materials have been discharged and stockpiled along the southern dike, maintenance material discharge shall be directed further to the interior, and shall not be directed in between the rehabilitated dike and stockpiled material. During the course of dredging, the Contractor shall monitor the 2 spillboxes and shall adjust the boards

SECTION 01 00 10 Page 3 as necessary to maintain water quality as specified herein.

1.2 NEW WORK DREDGING

New Work Borrow Dredging consists of dredging the following locations:

1. DER BSC Borrow

2. DER HSC Borrow

DER BSC Borrow is located along the southern flare radius of the BSC Flare, between approximate Station 211+15 to 239+22. DER BSC Borrow, Schedule No.

1, shall be dredged within the limits shown to a depth of minus 48.5 feet MLLW with two feet of allowable overdepth.

The DER HSC Borrow is located along the eastern side of the HSC at Beacon 76, between Station 26+484 to 30+089. The DER HSC Borrow, Option No. 1, shall be dredged within the limits shown to a depth of minus 48.5 feet MLLW with two feet of allowable overdepth.

Borrow materials are expected to be predominantly new work and may consist of soft silts and muds, soft, firm, hard, stiff, silty and sandy clays, fine to coarse sands, silty sands, calcareous nodules, shell, and rock as shown on the plans.

DER BSC Borrow will be placed to rehabilitate the dikes on Atkinson Marsh Cells M7/8/9 and M10. The exercised quantities of the HSC materials shall be placed into either M7/8/9 or M10 to be used to complete the dike rehabilitation as needed, or stockpiled as directed by the Contracting Officer. Additionally, the exercised quantities of HSC materials shall be placed equally into each of the northern and southern hydraulic fill berms in PA 14 as shown or as directed by the Contracting Officer.

1.3 DIKE REHABILITATION

Materials to construct the dikes are to be obtained from one or both of the two designated borrow areas shown on the plans as noted above.

The rehabilitation of the dikes consists of furnishing all plant, labor, materials, and equipment, and performing all work required by these specifications and plans for rehabilitating the existing dikes with hydraulic fill. The dikes will generally be constructed to the minimum sections depicted on the plans for Atkinson Island Marsh Cell M7/8/9 and Cell M10.

The materials in the vicinity of hydraulic fill dike alignments consist of previously placed hydraulic fill with areas of soft to very soft foundation characteristics. The Contractor is encouraged to thoroughly review the soundings, borings, and probings provided. The design considers some displacement of soft foundation through the hydraulic placement process and loading of dredged materials. Displacement and settlement is expected.

The Contractor shall control its discharge to displace softer materials where encountered. The templates shown do not represent the total volume of excavated satisfactory materials needed to rehabilitate the hydraulically constructed dikes to the lines and grades specified. No additional payment will be made for material exceeding the limits of the minimum section depicted on the plans. The Contractor shall be responsible for settlement, foundation displacement or failure, shrinkage, subsidence and construction slopes; and shall take these factors into account in his

SECTION 01 00 10 Page 4 unit price per cubic yard of borrow and linear foot of shaping.

The dikes will be rehabilitated in three phases. Phase 1 consists of preparing the existing dikes to receive hydraulic fill. Subject to approval by the Contracting Officer, the Contractor shall determine its own means and methods for preparing the existing dikes to receive hydraulic fill (i.e. clearing, construction of training/retention dikes, spillbox protection measures, etc.). Phase 1 shall include Schedule No. 1 DER Atkinson Marsh Cell Spillboxes Removal, wherein the southern spillboxes on M7/8/9 and M10 shall be removed from the locations indicated in the plans and in accordance with the specifications herein.

Phase 2 consists of placing hydraulic fill along the existing dikes to provide for the minimum lines and grades shown on the plans. The Contractor shall consider the amount of material deemed necessary to complete the overall required dike template and to allow for a sufficient amount of satisfactory materials to construct the final dike template. The Contractor shall determine the actual amount of hydraulic fill required to complete the dike template shown on the plans utilizing its own means and methods, and shall be responsible for re-pumping of sections requiring additional fill as determined by the Contracting Officer, at any point during the duration of work.

Phase 3 consists of shaping, grading, and compacting the placed hydraulic fill, into and with the existing dikes, generally, to the lines and grades shown on the plans, under Schedule No. 1 DER Shaping and Grading Atkinson Marsh Cell M7/8/9 and DER Shaping and Grading Atkinson Marsh Cell M10.

Material shall be recovered and shaped and any excess materials shall be stockpiled and shaped or placed to the interior of the site within recoverable limits to be available for future use, repairs, or marsh fill.

Soft Materials displaced by placement of borrow materials or mudwave shall not be used for dike construction or shaping. If additional shaping is required prior to acceptance due to settlement, failures, or erosion, the additional shaping shall be conducted at no cost to the Government.

Payment for Phase 3 (final grading and shaping) shall be by unit price per linear foot. Phase 3 shall also include Schedule No. 1 DER Seeding and Fertilizing.

1.4 RETENTION DIKES

If exercised, DER Houston Ship Channel, PA 14 Retention Dike shall be constructed prior to placement of material as part of DER Borrow Houston Ship Channel Station 26+484 to 30+089 to PA 14.

1.5 SPILLBOXES LOCATED AT ATKINSON MARSH CELLS M7/8/9 & M10

Spillboxes at approximate Stations 23+00 and 42+15 on M7/8/9 and approximate Stations 14+50 and 38+87 on M10 shall remain in place and shall be protected in accordance with SECTION 35 41 00 DIKE CONSTRUCTION. The existing spillboxes located on the southern dikes of each marsh cell shall be removed in accordance with SECTION 35 41 00 DIKE CONSTRUCTION.

1.6 GORINI MARSH CIRCULATION CHANNEL

The circulation channel to the Gorini Marsh shall be excavated under Schedule No. 1 DER Gorini Marsh Circulation Channel. The circulation channel shall be excavated along the alignment shown in the plans after completion of the hydraulic rehabilitation of the dikes and shall be in accordance with SECTION 35 20 23.16 45 PIPELINE DREDGING.

SECTION 01 00 10 Page 5

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section --

SECTION 01 00 10 Page 6