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This amendment modifies a solicitation for a construction project. The U.S. Army Corps of Engineers, Vicksburg District, is seeking to replace drop inlet structures at Enid Lake in Yalobusha County, Mississippi under solicitation number W912EE23B0012. The amendment revises drawing C-501 and the associated details for the drop inlet replacement. The construction work includes furnishing and installing precast concrete structures, frames, gratings, concrete collars, and other features meeting AASHTO and ASTM specifications. Bidders must acknowledge receipt of the amendment prior to the extended hour and date specified in the solicitation.

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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

Reference Solicitation No. W912EE23B0012 for YALOBUSHA COUNTY, MS, ENID LAKE DROP INLETS REPLACEMENT, FC/MR&T, YAZOO RIVER BASIN, YOCONA RIVER, ENID LAKE is amended as follow s:

SEE CONTIUATION PAGE FOR SUMMARY OF CHANGES

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 02-Aug-2023

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 W912EE23B0012

X 9B. DATED (SEE ITEM 11)

06-Jul-2023

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

02-Aug-2023

CODE

VICKSBURG CONTRACTING OFFICE

4155 CLAY ST

VICKSBURG MS 39183-3435

W912EE 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EE23B0012

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

DRAWINGS: Drawing C-501 is revised and replaced.

Drawings revised by this amendment have the notation “Revised by Amendment 0001” in the title block.

(End of Summary of Changes)

DIA. OF PIPE = D

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D (OR SPAN) + 2T + 1'-0"

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6"

6"

CONTRACTOR SHALL PLACE

SOLID SODDING AFTER BACKFILL.

30"

9" (M

IN

8"

SAND BACKFILL

PIPE

12" (MIN) COMPACTED CLAY (SEE NOTE 3)

SAND BACKFILL

(SEE NOTE 2)

EXISTING GROUND

TOPSOIL (VARIES) SD

SD

SD

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(MIN.)

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6"

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6"NEW CONCRETE

PIPE TO BE INSTALLED BY CONTRACTOR

EXISTING CONCRETE PIPE

CUT PIPE TO

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GENERAL NOTES:

1. THE CONTRACTOR SHALL WAIT 72 HOURS AFTER PLACING THE CONCRETE

FOR THE PIPE COLLAR BEFORE BEGINNING BACKFILL.

2. BACKFILL AROUND THE PIPE SHALL BE SAND WITH A MAXIMUM OF 30% AND

MINIMUM 5% BY DRY WEIGHT PASSING THE NO. 200 SIEVE.

3. ANY ADDITIONAL CLAY REQUIRED ABOVE THE SAND BACKFILL SHALL BE

OBTAINED FROM LOCAL COMMERCIAL SOURCES AND THIS MATERIAL SHALL

BE APPROVED BY THE CONTRACTING OFFICER.

4. THE CONCRETE COLLAR SHALL BE FRAMED USING THE LARGEST OUTSIDE

DIAMETER OF THE TWO PIPES CONNECTING.

5. CONTRACTOR SHALL PLACE SOLID SODDING IMMEDIATELY AFTER TOP SOIL INSTALLATION.

6. THE CONCRETE PIPE SHALL BE CLASS IV MIN.

DRAIN PIPE

GROUT AROUND CONDUIT TO

PROVIDE A WATER TIGHT SEAL

CAST IRON OR GALVANIZED STEEL GRATE

PRECAST CONCRETE CATCH BASIN

TO MEET AASHTO H-20/H-25 LOAD RATING

3' 3'

6"

DROP INLET MATERIALS AND FEATURES:

1. CONCRETE: 4,000 PSI IN 28 DAYS

2. REINFORCING STEEL: PER ASTM A-615, GRADE 60

3. REINFORCING TO MEET AASHTO HS 20-44 LOADING

4. PRECAST STRUCTURE TO MEET ASTM C-857

5. FRAME AND GRATE/COVER REQUIRED PER MANUFACTURER

SPECIFICATIONS.

6. SEE SPECIFICATIONS FOR GROUT AROUND CONDUIT.

SCALE: NONE

DROP INLET DETAIL

SCALE: 2"=1'

0 1'6"

TYPICAL CONCRETE COLLAR DETAIL

SCALE: 2"=1'

0 1'6"

TYPICAL CONCRETE COLLAR SECTION

SCALE: 1"=1'

0 2'1'

TYPICAL TRENCH DETAIL

TY

PI

C

AL

D

ET

AI

LS

C-501

SEE TYPICAL PROFILE SHEETS

C-201 - C-204 FOR DEPTH 1

Revised by Amendment 0001

A22_Amendment_0001
A22_AM_0001_Drawing
Sheets and Views
C-501 TYPICAL DETAILS
undefined:
undefined_2:
SD:
SD_2:
undefined_3:
undefined_4:
D OR RISE 2T 10:
SD_3:
undefined_5:
PIPE:
undefined_6:

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