1240BJ26Q0028 A00001.pdf

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1240BJ26Q0028

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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 ACKNOWLEDGEMENT 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.

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40BJ

PORTLAND OR 97204-2829

STE 310

1220 SW 3RD AVE

USDA-FS CSA NORTHWEST 7

117309708/28/20260001

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

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

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

07/14/2026

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

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

This amendment is for the Q&A's and to move the due date out to 9/4/2026 at 1600 PT Period of Performance:est. start date 09/30/2026 to 10/29/2026

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

ROMAN D. CARDENAS

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Q&A

1. Could the reinforced concrete serve as the permanent anchoring system, or would the anchors still have to extend through the concrete and into bedrock?

The fabricated steel grate shall be secured to bedrock using 5/8” steel rods (“rock bolts”) anchored in at least 8” of competent rock to resist tampering, vandalism, and movement of the grate.

Concrete slabs shall be used if the steel grate cannot be anchored to bedrock. And the mine shaft collar is determined to be composed of incompetent material or unstable surfaces.

The need to extend anchors through the concrete and into bedrock will be dependent on the contractor’s engineering design and analysis to safely construct the final product described in the Solicitation Line Item 02..

2. Would the contractor be required to provide Washington PE- or SE-stamped drawings and structural calculations?

Yes, a Professional Structural Engineer that is licensed in the State of Washington and qualified to perform the engineering analysis and design will be needed for the construction of a concrete slab.

3. Does the Forest Service have minimum requirements for concrete thickness, reinforcement, anchor embedment, design loads, or curing time?

Cement shall be Type II Portland cement conforming to ASTM C 150 unless otherwise approved by the COR. Fine and coarse aggregate shall conform to ASTM C-33. Water shall be potable. Admixtures shall conform to ASTM C-494. Calcium chloride will not be permitted.

Mine openings to be closed with a cast-in-place slab must be excavated to competent bedrock. The Contractor is responsible for site inspections and any testing or exploration necessary to ensure that the bid adequately reflects excavation conditions including any hand trimming and leveling required. The perimeter of the mine opening must be excavated to a minimum ledge width of two feet (2’) on competent bedrock. Forms for cast-in-place concrete slabs must be constructed using corrugated metal stay-in-place forms (bridge decking) and steel or wood beams. Alternative materials may be used for forming if the Contractor demonstrates to the COR that the alternative forms are capable of withstanding the loads applied by the concrete.

The Contractor shall be responsible for reinstalling the cap should alternative materials fail to adequately support the concrete. Forms shall be mortar tight and sufficiently rigid to prevent distortion due to the pressure of the concrete and other loads incidental to the concrete operations including vibration. If a vertical culvert is specified, an opening must be cut in the formwork where the culvert is to be set.

Reinforcing steel shall be laid over the formwork using plastic chairs or equivalent to support the steel three inches (3”) above the formwork. If a vertical culvert is installed in the shaft, the vertical culvert must be installed prior to pouring the concrete. Reinforcing steel must be tied together. Welding of reinforcing steel is not allowed.

The concrete may be mixed at the work site or delivered as ready mix at the Contractors option. If the concrete is mixed on site, equipment and mixing procedures shall conform to ACI 301 Chapter 7. If ready mix is used it shall be mixed and transported in accordance with ASTM C-94. The concrete mix shall be designed to produce a minimum 4000 psi concrete at the 28 day test. If hot weather concreting is done it shall conform to the requirements of ACI-305. If cold weather concreting is done it shall conform to the requirements of ACI-306. The rate of depositing concrete in forms shall be controlled to prevent deflection of the form panels. The concrete shall be thoroughly compacted to prevent the formation of voids in the cap.

4. Would this concrete-supported design be considered part of the base scope if competent bedrock is unavailable, or would it require a contract modification?

A concrete-supported design is not considered as part of the base scope and may require contract modification.

5. Could the contractor submit the proposed design for Forest Service review and written approval before purchasing materials or beginning fabrication?

Yes, the awarded contractor shall submit their proposed design for Forest Service review prior to the issuance of a notice to proceed.

6. Are we designing a gate based on the criteria and supplying that as a part of the bid or calculate it out based on the criteria and add that $$ to the bid? Sorry I just want to be sure I do not miss anything.

The contractor shall be responsible for the design and installation of a fabricated steel bat-friendly grate that mitigates public access and human entry into the mine shaft.