B.08.02-Lower Wicomico Maintenance Dredging Amendment 0004 8.26.2022.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 purpose of this amendment is to change the magnitude of construction to betw een $10,000,000 and $25,000,000.

Except as provided herein, all other terms and conditions remains unchanged and in full force and effect.

1. CONTRACT ID CODE PAGE OF PAGES

1 3

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

16C. DATE SIGNED

BY 25-Aug-2022

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 W912DR22B0018

X 9B. DATED (SEE ITEM 11)

18-Jul-2022

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

25-Aug-2022

CODE

USACE, BALTIMORE

2 HOPKINS PLAZA

BALTIMORE MD 21201

W912DR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912DR22B0018

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 10 00 - SOLICITATION

The following have been modified:

SCOPE OF WORK

Lower Wicomico Maintenance Dredging Scope of Work 4/20/2022

The U.S. Corps of Engineers Baltimore District is seeking sources for a dredging project entitled, Lower Wicomico River Maintenance Dredging, Wicomico County, MD. The place of performance is located in Wicomico and Somerset Counties, Maryland. Material will be placed beneficially for wetland restoration at the Deal Island Wildlife Management Area (WMA) located in Somerset County, MD. Construction magnitude is between $10,000,000 and $25,000,000. The construction duration will be approximately 730 calendar days.

The scope includes the hydraulic dredging the lower half of the Wicomico River to its authorized depth of 14 feet (plus one foot of allowable overdepth). Approximately 120,000 cubic yards of silty material, with small pockets of sandy material, are to be dredged. Placement of material via pipeline will be utilized. Pipeline distance will be, on average, 8 miles, with a maximum pumping distance of 14 miles. The pipeline will travel through the Wicomico River and over land (approximately 4 miles) to reach the placement site. The pipeline will be placed atop the existing berm at the WMA impoundment and a diffuser shall be used at multiple locations to place the material at a lower velocity into the placement site. The outflow of the pipeline shall be moved across the project placement areas to achieve the desired elevation. As such, careful attention to the prescribed elevation in placing the material is critical to the success of the project. Approximately 70 acres of land will be restored. Due to the location of the placement site being surrounded by water and the WMA impoundment, minimal land access is available with little to no access for heavy equipment from the land side of the project placement site.

Wetland restoration is meant to increase migratory bird nesting habitat. To ensure the restoration goals are met the placement location shall also include placing straw bales as natural containment around the southern end of the placement site. The straw bales are to act as containment for dredged material placed for wetland restoration and increasing migratory bird nesting habitat. Approximately 11,000 strawbales will be used stacked two high with an additional single stacked row at the interior of the placement site to provide proper containment of the dredged material. Tidal ditch plugs shall be constructed in areas of high erosion or open water. Approximately 20 ditch plugs of varying size are to be constructed.

After dredged material placement, vegetation will be planted to restore the wetland. Planting of vegetation will occur over the two growing seasons post dredged material placement. Vegetation will be Spartina patens and Distichlis spicata, and possibly a smaller amount of Panicum.

Vegetation the first growing season may require aerial seeding, based on consolidation of the

W912DR22B0018

dredged material. Vegetation the first growing season shall also require the exterior edge only to be hand planted to provide stabilization, with interior planting occurring the second growing season once material has consolidated. It is estimated that the primary contractor is to complete 50% of the work, and the subcontractor to complete the remaining 50%.

SECTION 00 21 13 - INSTRUCTIONS TO BIDDERS

The following have been modified:

52.252-5 AUTHORIZED DEVIATIONS IN PROVISIONS (NOV 2020)

(a) The use in this solicitation of any Federal Acquisition Regulation (48 CFR Chapter 1) provision with an authorized deviation is indicated by the addition of "(DEVIATION)" after the date of the provision.

(End of provision)

MAGNITUDE OF CONSTRUCTION

The estimated magnitude of construction is between $10,000,000.00 and $25,000,000.00.

PREAWARD SURVEY CONFERENCE

Where an apparent low bidder, in performance of contracts during the previous three year period incurred one or more accidents, or where, in the opinion of the Contracting Officer, there is any question regarding his compliance with any safety or accident prevention requirement, such bidder, on request of the Contracting Officer prior to any award under this solicitation, shall attend a conference with representatives of the Contracting Officer to discuss any such accidents or non-compliance, the reasons for their occurrence, and measures which will be taken to preclude any recurrence thereof. Information elicited at this conference will be used by the Contracting Officer, in conjunction with other information obtained in the pre award survey, in determining the bidder's responsibility.

The items discussed, the preventive measures considered, and any conclusions reached in this conference shall be recorded in minutes of the meeting, which shall be authenticated by the signatures of representatives of the bidder and the Contracting Officer, and any procedures noted therein as agreed upon shall become an obligation of the bidder, along with all other safety and accident prevention requirements of the contract, if award is made to him.

SAFETY REQUIREMENTS

The Contractor is advised that he shall be expected to comply with the OSHA Standards as well as the most recent Corps of Engineers Safety and Health Requirements Manual (EM 385-1-1). EM 385-1-1 with applicable addenda and the OSHA Standards are hereby incorporated by reference, as if fully set forth.

(End of Summary of Changes)