C. J. MAHAN CONSTRUCTION COMPANY, LLC

IMPLEMENT CHANGE CL024 PURSUANT TO FAR 52.236-2 DIFFERING SITE CONDITIONS. CONTRACT PRICE IS INCREASED BY $75,000.00 FROM $77,499,994.46 TO $77,574,994.46. THE CONTRACT COMPLETION DATE REMAINS UNCHANGED AT DECEMBER 01, 2025.

EXERCISING PRICED OPTIONS

REMOVE MITER GATES - OPTION 3

CR 006 SPREADER BEAM MITER GATE LIFT - ADD BEAM TO LIFT REMOVE MITER GATES

OPTIONS 2, 3, AND 4.

REPLACE HYDRAULIC (BASE) CHANGE AA - CYLINDER ROD END CLEVIS

MV SWGR, MV MCC, CONDUIT, BUSHING BOX, FLOWMETER CONTRACT FOR GRAND PRAIRIE PUMP STATION REPROCUREMENT AT DEVALLS BLUFF, AR REFERENCE NO. R00006

IMPLEMENT CHANGE CL020 AND CL022 PURSUANT TO FAR 52.243-CHANGES. CONTRACT PRICE IS INCREASED BY $74,634.14 FROM $77,425,360.32 TO $77,499,994.46. THE CONTRACT COMPLETION DATE REMAINS UNCHANGED AT DECEMBER 01, 2025.

DISCHARGE PIPE FLANGE MACHINING

HOLT LOCK MONOLITH R14 RESTORATION

OPTION 15

CR 003-1 SECOR PIN , PART I NTP -USE A DROP HAMMER TO ADVANCE THE SECTOR PIN, LOCATED IN THE RIVER CHAMBER UPPER MIDDLE WALL MACHINERY PIT, BACK INTO THE SECTOR BASE. DEWATER LOCK CHAMBER

GRAND PUMP STATION REPROCUREMENT MODIFICATION FOR ELEVATOR

GRAND PRAIRIE PUMPING STATION RE-PROCUREMENT

STOP LOG AND LIFTING BEAM STORAGE RACK CONTRACT FOR GRAND PRAIRIE PUMP STATION REPROCUREMENT AT DEVALLS BLUFF, AR REFERENCE NO. R00003

CHANGE REQUEST 0005 REA ADDITIONAL SEALING AND GROUTING CHANGE REQUEST 0006 REA RELOCATE ANCHORS COLUMNS 1 AND 2

CR 003 URC REVISED CHAMBER CLOSURE SCHEDULE REMOVE MITER GATES

IMPLEMENT CHANGE CL019 PURSUANT TO FAR 52.243-CHANGES. CONTRACT PRICE IS INCREASED BY $1,800.00 FROM $77,423,560.32 TO $77,425,360.32. THE CONTRACT COMPLETION DATE REMAINS UNCHANGED AT DECEMBER 01, 2025.

REMOVE MITER GATES- DEOB/DESCOPE OF OPTION 6

OLMSTED MAINTENANCE CRANE BARGE MODIFICATION 15 - ADDRESSES TIMBERLAND WINCH REPAIRS, BLASTING AND PAINTING, BOOM REST CONSTRUCTION, AND TIME EXTENSION DUE TO LONG LEAD TIMES ON REPAIR PARTS FOR WINCHES.

P00007 CL017 REDESIGN TIME IMPACT REA FOR THE PARTIAL SUSPENSION OF TECHNIQUE SHAFT WORK REDESIGN OF THE DRILLED SHAFTS, INTERMEDIATE PIERS, NOSE PIERS, AND OF THE RESTRAINER BARS.

CHANGE REQUEST 0004, SEALS AND WELDS

OPTION 14- FUNDING CLIN

OPTION TO REPLACE STRUT ARM AND BUSHING

EMSWORTH BACK CHANNEL HYDRAULIC GATE CYLINDER REPLACEMENTS.

GRATING SHIMS AT N VALVE ACCESS CONTRACT FOR GRAND PRAIRIE PUMP STATION REPROCUREMENT AT DEVALLS BLUFF, AR REFERENCE NO. R00001

OLMSTED LOCK AND DAM MAINTENACE CRANE BARGE MODIFICATION: NEW GENERATOR, GENERATOR RENTAL, ELECTRICAL, AND EXERCISE ONE CRANE ELECTRICAL OPTION, AND ONE CRANE MECHANICAL OPTION FOR REPAIRS. POP UPDATED TO 01 JUNE 2025 DUE TO GENERATOR PROCUREMENT.

CJ MAHAN OPTION YEAR 3 GA

CR 003-2 ADDITIONAL MITER GATE RELATED REPAIRS, PART II FINAL MARKLAND R45 - BASE

IMPLEMENT CHANGES CL011 AND CL015 PURSUANT TO FAR 52.243-CHANGES AND CL012 PURSUANT TO FAR 52.236-2 DIFFERING SITE CONDITIONS. CONTRACT PRICE INCREASED BY $238,050.86 TO $67,951,012.21. THE CCD REMAINS UNCHANGED AT FEBRUARY 10, 2025.

TOWBOAT RENTAL: MODIFICATION TO CHANGE OF DATE AND ADDING ADDITIONAL COSTS.

TOWBOAT RENTAL FOR THE MEDIUM CAPACITY FLEET, PITTSBUGH, PA>

EXERCISE OPTION 6: REPLACE GATE DIAGONALS

OPTION C825- CRANE ELECTRICAL 3 TIMES

EXERCISE OPTION FOR CRANE REPAIRS FOR OLMSTED L&D MAINTENANCE CRANE BARGE.

EXERCISE OPTION 12: FY 24 HIGH WATER SEASON

THIS MODIFICATION IS TO DEFINITIZE UCO PART 1 EXECUTED IN W912P521C0009-P00004. IMPLEMENT CL009-2(VECP DRILLED SHAFTS) PURSUANT TO FAR 52.248-3 VALUE ENGINEERING-CONSTRUCTION CL010-2(PIER CAPS & NOSE PIERS REDESIGN) PURSUANT TO FAR 52.243-4 CHANGES.

FUNDING FOR CLIN 0009 - MAINTENANCE PURPOSES

KENTUCKY LOCK UPSTREAM MOORING CELL #3 REMOVAL

L&D 52 DEMO - DEOB FUNDS ON LINE ITEMS 0001 AND 0002

CR 00003-1 ADDITIONAL MITER GATE RELATED REPAIRS

MODIFICATION TO OLMSTED MAINTENANCE CRANE BARGE TO ADD WARRANTY INFORMATION, POP EXTENSION TO 18 FEBRUARY 2025, AND A REVISION TO THE HANDRAILS.

REMOVE AND REPAIR MITER GATES AT GREEN RIVER

DEWATER LOCK CHAMBER

EXERCISING PRE-PRICED OPTION CLIN 0008 THREE TIMES TO COVER ELECTRICAL ISSUES WITH THE CRANE.

MODIFICATION TO UPDATE TRANSPORTATION OF MAINTENANCE BULKHEADS FROM SMITHLAND L&D TO MARKLAND L&D.

L&D 52 DEMO - CF FUNDS REA MODIFICATION

OLMSTED L&D MAINTENANCE BARGE CRANE OPTION EXERCISE CLIN 0007 FOR CRANE MODIFICATIONS TWICE, AND EXTEND POP FROM 9/14/2024 TO 12/17/2024.

CL013 AND CL014 ARE ENTERED INTO PURSUANT TO AUTHORITY OF FAR 52.243-4 CHANGES. TOTAL CONTRACT PRICE IS INCREASED BY $1,597.50 TO $65,152,717.11. CONTRACT COMPLETION DATE REMAINS UNCHANGED AT DECEMBER 12, 2024.

GRAND PRAIRIE PUMP STATION RE-PROCUREMENT