12445124B0005 Amendment 0003.pdf

(x)

12445124B0005 x x

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.

x

ATLANTA GA 30309-2449

STE 876S

1720 PEACHTREE ST NW

USDA-FS CSA EAST 11

03/15/20240003

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

02/22/2024

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.

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)

CYNTHIA B. GRANDERSON

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

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

The purpose of modification 0003 is to:

1.Replace Attachment 001 Schedule B

Schedule of Items

204- Excavation Borrow has been updated previously stating "Placement Method E", also known as Placement Method 5, to now "Placement Method 2 or 5" as being acceptable. These placement methods describe the methods of compaction that may be used and are found in the

Supplemental Specifications.

308 to 302 - 610 Crusher Run Aggregate is now changed to #57 Crushed Limestone on the SOI and drawing.

705 - Class 5 Rock Riprap is now changed to 1,000# gradation rock riprap Continued ...

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 .

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ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 2

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

12445124B0005/0003

2. Updated Attachment 002 Statement of Work

Description of Work

Language describing the orientation and placement of #57 rock has been updated.

The plasticity index PI has been specified for excavation borrow as it is not specified in the Supplemental Specifications or FP-14.

Language describing the placement of 400# and 1000# gradation rock has been updated and Class 5 rock is no longer specified.

Drawing

Remaining discrepancy of specifying 610 crusher run rock has been replaced by #57 limestone rock.

Orientation of #57 rock has been updated.

Further direction of placement of #57 rock may be directed in the field by the COR or technical monitor at the time this material is placed.

Specifications of Class 5 rock have been removed and replaced with 1,000# rock gradation specification.

A width of the chute at the downstream invert is now noted in the drawing.

A gradation chart is attached for the rock riprap now specified in this amendment.

3. To correct the period of performance.

Period of Performance: 100 Days from Notice to Proceed.

Period of Performance: 04/15/2024 to 07/24/2024.

4. Clarify the date for Amendment 0001 which is March 6, 2024.

The bid submittal deadline remains March 22, 2024.

Period of Performance: 04/15/2024 to 07/24/2024

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

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Item

No.

Description

Method of Meas.

Unit Qty.

Unit

Price Total

151.01 MOBILIZATION L.S.Q. LS 1 xxxxxxxxxx

204.07

BORROW EXCAVATION, PLACEMENT

METHOD 2 or 5 C.Q. C.Y. 1700

209.01 STRUCTURE EXCAVATION AND BACKFILL C.Q. L.S. 1 xxxxxxxxxx

302.01 CRUSHED LIMESTONE, #57 A.Q. TON 30

625.01 TURF ESTABLISHMENT C.Q. Acre 0.2

635.01 TEMPORARY TRAFFIC CONTROL L.S.Q. LS 1 xxxxxxxxxx

705.01 GABION REPAIR L.S.Q. LS 1 xxxxxxxxxx

705.02 ROCK RIPRAP 400# Gradation C.Q. TON 250

705.02 ROCK RIPRAP 1,000# Gradation C.Q. TON 300

708.05 PVC Siphon Pipe Repair w/ connections and

seals L.S.Q. LS 1 xxxxxxxxxx

714.01 GEOTEXTILE C.Q. S.Y. 400

SCHEDULE OF ITEMS

Choctaw Lake Spillway Bank Repair

TOTAL

DESCRIPTION OF WORK

Choctaw Lake Spillway Repairs Tombigbee National Forest

This project will repair a washout in the bank along the right side of Choctaw Lake Dam’s concrete spillway that resulted from heavy operating flow from a 8 inch plus storm event. Repairs will also be made to the PVC siphon system pipes on the spillway crest section, the gabion mattress at the exit invert of the spillway, and more heavier gradation rock riprap will be placed below the gabions.

Repairs of the scoured side of the spillway on the right will begin with cutting away any loose black honeycomb confinement material where the subgrade aggregate rock is no longer confined. A 2:1 slope that toes at the base adjacent to the exposed aggregate subgrade shall be established with excavation borrow so that #57 limestone aggregate can be placed at this toe and allow the aggregate to fall into the exposed void. The foundation will need to be filled in some to establish a good, compacted foundation and slope. Geotextile shall be placed along all surfaces where the #57 contacts excavation borrow or backfill material to prevent the fines from entering the aggregate. The downstream #57 shall exit and abut against the gabion area at the spillway exit. Excavation borrow will fill in the scoured area naturally sloping back up to undisturbed existing top bank. See drawing for details. 400# gradation rock riprap placed on geotextile shall be placed at the surface adjacent to the concrete spillway wall extending 25’ up the slope. At the end of project, turf establishment seeding and strawing shall be performed along disturbed surfaces along the fringes above the rock riprap.

Excavation borrow brought in shall meet a plasticity index PI between 8% and 24%.

The gabion and revetment mattress shall be pushed back against the invert of the concrete spillway exit if this can be achieved. 1000# gradation rock riprap shall be placed adjacent to and to the same elevation as the revetment mattress level to a minimum of 10’ downstream before sloping down and filling in more scoured rock further downstream. Some displaced rock shall be pushed back into the scour hole or downstream to re‐establish a flow path within the rock.

The PVC siphoning system has become separated and displaced on both 12” pipes due to either slipping or cracking at the coupling. Cut as necessary and replace with new sections and sealed coupling connections. If the coupling connection has an access, it must be restored the same as existing.

Applicable specifications may be found in FHWA’s FP‐14 and the attached supplemental specifications.