amendment 1.docx

2. AMENDMENT/MODIFICATION NUMBER

11. (

AMENDMENT

OF

SOLICITATION/MODIFICATION

OF

CONTRACT

1.

CONTRACT

ID

CODE

PAGE

OF

PAGES

USDA FOREST

SERVICE,

ARIZONA

ZONE

OFFICE,

E

MCDOWELL

ROAD PHOENIX AZ 85006

USFS

Procurement and

Property

Service, Field

Procurement Office

E.

McDowell

Rd, Phoenix, Arizona

85006 8.

NAME

AND

ADDRESS

OF

CONTRACTOR

(Number, street, county, State and

ZIP

Code) (X)

9A.

AMENDMENT OF SOLICITATION

NUMBER

127EAX2

3R00 9B.

DATED

(SEE

ITEM

11) 8/28 /2023 10A.

MODIFICATION

OF

CONTRACT/ORDER

NUMBER

10B.

DATED

(SEE

ITEM

13)

CODE

FACILITY

CODE

)THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended.

is not extended.

Offers 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 electronic communication 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 letter or electronic communication, provided each letter or electronic communication 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) N/A

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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 1 copies to the issuing office.

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

GAOA GIBBS WASH BRIDGE REPLACEMENT, CORONADO NATIONAL FOREST

1.RFP, Section J, Attachment 4, “Delete” and substitute the attached revised SOW: The staging area map and the details on potential sources of Grade G surfacing aggregate were changed. The previous SOW referenced a Forest Service pit as a potential source of surfacing aggregate, at this point this option is eliminated. The revised SOW (Attachment 1) has the contact for a local mining company that can produce the needed aggregate.

2. RFI, Question 1: Was a subsurface geotechnical investigation performed in the project area?

RFI Response: Two test pits were dug, but the locations were not recorded, see test pit sieve results (Attachment 2). Based on the two pits and 14 Williamson Drive probe test locations, the estimated soil depth in the area is less than 2 feet.

3. RFI, Question 2: Will you please advise on the question below concerning the arch material? According to the supplier the arch details in the drawing are not current, the recommendation below is the current standard.

In reference to the large steel Culvert for the Gibb Wash Bridge Replacement, could a BridgeCor Steel Arch, or equal, be acceptable in lieu of the Super Span arch currently depicted on page C-10? BridgeCor steel arch plates have a deeper x wider corrugation profile (15” x 5.5” versus standard 6” x 2”) than the Super Span arches, and are therefore 9x as stiff and do not require any CIP concrete thrust beams like the currently designed arch does. Please see attached pages detailing the BridgeCor spec and common shapes, as well as a couple snapshots below. Happy to provide the coordinates of any of the attached shapes for the EOR to verify hydraulics or any other supporting information. Please confirm a similar shape is acceptable for use in the wash crossing. Thank you!”

RFI, Response: Sheet C-02 of the drawings states the culvert manufacturer is responsible for design of the culvert. This includes structural plate corrugations and thrust beams if they are necessary. The opening was designed with plenty of freeboard to accommodate any corrugation available for an arch of this size.

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.

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243