Illinois State Toll Highway Authority Contract No. I-25-2032 Addendum 1 Page 1 of 5 3/13/2026

ADDENDUM NO. 1

TO

CONTRACT REQUIREMENTS

FOR CONTRACT I-25-2032

ILLINOIS STATE TOLL HIGHWAY AUTHORITY

Date: 3/13/2026

For which proposals will be received by the Illinois State Toll Highway Authority through electronic bidding via BidBuy until 10:30 a.m. local time on March 27, 2026

NOTICE OF REVISION TO CONTRACT

NOTES:

1. A complete set of Schedule of Prices is included with this Addendum and must be inserted into the Contract Bid by the Bidder. The Bidder’s attention is called to pages P-5R to P-14R which have been revised and included as part of the Schedule of Prices.

2. The following revised Special Provision pages are included in the Contract with this Addendum: J-2R, J-11R, J-57R, J-181R.

3. The following new Special Provision pages are included in the Contract with this Addendum: J-68A - J-68C, J125A, J-225A – J-225J.

4. The following revised Special Provision pages will be issued to the successful Bidder: iR, iiR, and iiiR.

5. The following revised Contract Drawings are included in this Addendum:

Drawings 1, 2, 36, 43, 44, 51, 52, 134, 135, 138, 141

6. The following new Contract Drawings are included in this Addendum:

Drawings 92A, 92B, 155A to 155E.

7. Revised Contract Drawings 6 through 9 will be issued to the successful Bidder. The revised drawings will reflect the quantity changes shown in the “Summary of Revisions to Pay Item Quantities” table included in this addendum.

8. The minutes from the Optional Pre-Bid Meeting held on February 25, 2026, are included in this Addendum.

9. Responses to Request for Information received from the Plan Holders after the Pre-Bid Meeting are included in this Addendum.

Addendum 1 Page 2 of 5 3/13/2026

CHANGES TO THE CONTRACT REQUIREMENTS

CHANGES TO THE SCHEDULE OF PRICES

SUMMARY OF REVISIONS TO PAY ITEM QUANTITIES

SP

PROV

PAY ITEM

NO.

DESCRIPTION UNIT

ORIGINAL

QUANTITY

CHANGE

NEW

QUANTITY

50102400 CONCRETE REMOVAL CU YD 0 +5.9 5.9

* 50300225 CONCRETE STRUCTURES CU YD 109 -72.2 36.8

* 50300255 CONCRETE SUPERSTRUCTURE CU YD 0 +2.4 2.4

50300300 PROTECTIVE COAT SQ YD 1,774 -2 1,772

* 50800205 REINFORCEMENT BARS, EPOXY COATED POUND 141,390 -17,790 123,600

70600280

IMPACT ATTENUATORS, TEMPORARY

(SEVERE USE,NARROW), TEST LEVEL 3

EACH 5 +1 6

78005110 EPOXY PAVEMENT MARKING – LINE 4” FOOT 103,235 +2,534 105,769

78005140 EPOXY PAVEMENT MARKING – LINE 8” FOOT 2,253 +200 2,453

81800450

AERIAL CABLE, 4-1/C NO. 2 WITH

MESSENGER WIRE

FOOT 1,810 +210 2,020

89502350

REMOVE AND REINSTALL ELECTRIC CABLE

FROM CONDUIT

FOOT 0 +1,050 1,050

* X1400410

RELOCATE EXISTING TEMPORARY

LIGHTING UNIT

EACH 0 +2 2

GBSP X5030250 BRIDGE DECK GROOVING (LONGITUDINAL) SQ YD 0 +6 6

* Z0018400 DRAINAGE STRUCTURES TO BE ADJUSTED EACH 1 +2 3

* JI420041 TRANSITION APPROACH SLAB SQ YD 147 +15.5 162.5

* JI440010

CONCRETE MEDIAN BARRIER AND BASE

REMOVAL

FOOT 0 +251 251

* JI485020 TEMPORARY PAVEMENT, CLASS 2 SQ YD 2,708 +200 2,908

* JI503010

HIGH PERFORMANCE CONCRETE

SUPERSTRUCTRE

CU YD 0 +3.5 3.5

* JI704005

RELOCATE TEMPORARY CONCRETE

BARRIER

FOOT 13,325 +2,550 15,875

** JS734G10 FOUNDATION FOR ITS GANTRY FRAME CU YD 0 +72.2 72.2

** JS812023

CONDUIT EMBEDDED IN STRUCTURE, 2”

DIA., PVC

FOOT 1,020 +16 1,036

** JS842080

REMOVAL OF EXISTING LIGHTING UNIT,

SALVAGE

EACH 0 +1 1

** JS842105 POLE FOUNDATION, REMOVED EACH 0 +1 1

* JT211A08 SUBGRADE AGGREGATE 9 IN. CU YD 0 +677 677

* JT503041

STRUCTURAL REPAIR OF CONCRETE

(DEPTH GREATER THAN 5 IN.)

SQ FT 0 +2 2

* JT783005

WATERBLAST PAVEMENT MARKING WITH

VACUUM

SQ FT 35,914 +867 36,781

Addendum 1 Page 3 of 5 3/13/2026

* Indicates Special Provision

** Indicates Tollway Supplemental Special Provision

GBSP – IDOT Guide Bridge Special Provision

Change #1 Contract Requirements, Volume I, pages P-5 to P-14 replaced with pages P-5R to P-14R. These replacements contain the following revisions (attached):

1.1. The quantities for various pay items were revised as listed in the Summary of Revisions to Pay Item

Quantities in Changes to the Schedule of Prices table above.

1.2. Added pay items and quantities for 50102400, 50300255, 89502350, X1400410, X5030250, JI440010, JI503010, JS743G10, JS842080, JS842105, JT211A08, and JT503040.

CHANGES TO THE CONTRACT SPECIAL PROVISIONS

Change #2 Contract Requirements, Volume II, replaced Pages i, ii and iii, with Pages iR, iiR and iiiR (issued to successful Bidder).

This replacement contains the following revisions:

2.1. Revised Table of Contents sheets to reflect special provision Changes #3 to Change #10.

Change #3 Contract Requirements, Volume II, replaced Page J-2, with Page J-2R (attached).

3.1. Revised Index of Drawings to include the BN233 Repair plan sheets.

Change #4 Contract Requirements, Volume II, replaced Page J-11 with Page J-11R (attached).

4.1. Revised List of Incidentals to the Pay Items list

Change #5 Contract Requirements, Volume II, replaced Page J-57, with Page J-57R (attached).

5.1. Added Concrete Superstructure and High Performance Concrete Superstructure to pay item table.

Change #6 Contract Requirements, Volume II, added J-68A and J-68B (attached).

This addition contains the following revision:

6.1. Added an SP for Relocate Exisitng Tempoary Lighitng Unit

Change #7 Contract Requirements, Volume II, added J-68C (attached).

7.1. Added an IDOT GBSP for Bridge Deck Grooving (Longitudinal)

Change #8 Contract Requirements, Volume II, added J-125A (attached)

8.1. Added an SP for Concrete Median Barrier and Base Removal

Change #9 Contract Requirements, Volume II, replaced Page J-181 with Page J-181R (attached).

This replacement contains the following revision:

9.1. Added Subgrade Aggregate 9 In. to the pay item table

Change #10 Contract Requirements, Volume II, added J-225A – J-225J (attached).

This addition contains the following revisions:

10.1. Added Tollway GBSP for Structural Repair to Concrete.

Addendum 1 Page 4 of 5 3/13/2026

CHANGES TO THE CONTRACT DRAWINGS

Change #11 Contract Plans Drawings 1 and 2.

These revised drawings contain the following revision (attached):

11.1. Revised Index to add Drawings 155A-155E.

Change #12 Contract Plans, Drawings 6 through 9. Summary of Quantities.

These drawings contain the following revisions (issued to successful Bidder):

12.1. Revised quantity for pay items as noted in the revised Summary of Revisions to Pay Item Quantities on page 2.

12.2. Added new pay items and quantities as noted in the revised Summary of Revisions to Pay Item

Quantities on page 2.

Change #13 Contract Plans, Revised Drawing 36.

This revised drawing contains the following revision (attached):

13.1. Added the removal of the I-294 median barrier from Sta 1773+36.00 to Sta 1776.01.00. to PreStage.

13.2. Added NB CF traffic shift to Stage 1.

13.3. Added BN 233 bridge repair to Stage 1.

Change #14 Contract Plans, Revised Drawings 43 and 44.

14.1. Added the removal of median barrier and base from Sta 1773+50.00 to Sta 1776+01.00.

14.2. NB CF traffic in existing condition.

Change #15 Contract Plans, Revised Drawings 51 and 52.

15.1. Shifted NB CF 250’ north at North Avenue.

Change #16 Contract Plans, Added Drawings 92A and 92B.

These added drawings contain the following (attached):

16.1. Transition approach slab details for Ramp F transition approach slab replacement.

Change #17 Contract Plans, Revised Drawing 134.

17.1. Added Conduit/Cable description “I” to the legend.

Change #18 Contract Plans, Revised Drawing 135.

18.1. Revised quantities for pay items.

18.2. Added pay items as noted in Changes to the Schedule of Prices.

Change #19 Contract Plans, Revised Drawing 138.

19.1. Relocate temporary light poles for 4 NB CF shift for median barrier removal.

19.2. Remove permanent light pole in median at Sta 1774+/-00.

Change #20 Contract Plans, Revised Drawing 141.

20.1. Revised the sheet presentation to show light pole at 1778+16.

20.2. Added callouts for conduit and cable between 1776+06 and 1778+16.

Addendum 1 Page 5 of 5 3/13/2026

Change #21 Contract Plans, Added Drawings 155A – 155E

These added drawings contain the following (attached):

9.1 BN233 repairs.

END OF ADDENDUM CHANGES

S.P.

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

* 20200100 EARTH EXCAVATION CU YD 845

* 20201200

REMOVAL AND DISPOSAL OF

UNSUITABLE MATERIAL

CU YD 37,110

* 20400800 FURNISHED EXCAVATION CU YD 4,818

20800150 TRENCH BACKFILL CU YD 38

25000400 NITROGEN FERTILIZER NUTRIENT POUND 75

25000600 POTASSIUM FERTILIZER NUTRIENT POUND 225

28000250

TEMPORARY EROSION CONTROL

SEEDING

POUND 161

28001100

TEMPORARY EROSION CONTROL

BLANKET

SQ YD 14,474

28100205 STONE RIPRAP, CLASS A3 TON 7,100

28200200 FILTER FABRIC SQ YD 5,200

40600985

PORTLAND CEMENT CONCRETE

SURFACE REMOVAL - BUTT JOINT

SQ YD 224

42101300 PROTECTIVE COAT SQ YD 17,962

44000100 PAVEMENT REMOVAL SQ YD 20,089

44000500

COMBINATION CURB AND GUTTER

REMOVAL

FOOT 67

44004250 PAVED SHOULDER REMOVAL SQ YD 2,191

50102400 CONCRETE REMOVAL CU YD 5.9

50104400 CONCRETE HEADWALL REMOVAL EACH 1

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

Contract I-25-2032

ADDENDUM 1 P - 5R March 11, 2026 gthiesse Snapshot

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* 50300225 CONCRETE STRUCTURES CU YD 36.8

* 50300255 CONCRETE SUPERSTRUCTURE CU YD 2.4

50300300 PROTECTIVE COAT SQ YD 1,772

* 50800205 REINFORCEMENT BARS, EPOXY COATED POUND 123,600

51603000 DRILLED SHAFT IN SOIL CU YD 19

52200900

CONCRETE STRUCTURES (RETAINING

WALL)

CU YD 1,076.2

550A0410 STORM SEWERS, CLASS A, TYPE 2 24" FOOT 126

55100700 STORM SEWER REMOVAL 15" FOOT 23

55101200 STORM SEWER REMOVAL 24" FOOT 124

60221100

MANHOLES, TYPE A, 5'-DIAMETER, TYPE

1 FRAME, CLOSED LID

EACH 1

60255500 MANHOLES TO BE ADJUSTED EACH 1

60500050 REMOVING CATCH BASINS EACH 4

60603800

COMBINATION CONCRETE CURB AND

GUTTER, TYPE B-6.12

FOOT 67

63200310 GUARDRAIL REMOVAL FOOT 75

* 66900530 SOIL DISPOSAL ANALYSIS EACH 3

70600280

IMPACT ATTENUATORS, TEMPORARY

(SEVERE USE,NARROW), TEST LEVEL 3

EACH 6

70600370

IMPACT ATTENUATORS, RELOCATE

(SEVERE USE,NARROW), TEST LEVEL 3

EACH 11

Contract I-25-2032

ADDENDUM 1 P - 6R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

72400100

REMOVE SIGN PANEL ASSEMBLY - TYPE

A

EACH 2

72400200

REMOVE SIGN PANEL ASSEMBLY - TYPE

B

EACH 5

72400310 REMOVE SIGN PANEL - TYPE 1 SQ FT 16

72400320 REMOVE SIGN PANEL - TYPE 2 SQ FT 16

72800100 TELESCOPING STEEL SIGN SUPPORT FOOT 116

73000100 WOOD SIGN SUPPORT FOOT 99

78005110 EPOXY PAVEMENT MARKING - LINE 4" FOOT 105,769

78005140 EPOXY PAVEMENT MARKING - LINE 8" FOOT 2,453

81800450

AERIAL CABLE, 4-1/C NO. 8 WITH

MESSENGER WIRE

FOOT 2,020

89502350

REMOVE AND REINSTALL ELECTRIC

CABLE FROM CONDUIT

FOOT 1,050

* X1200160

CONNECTION TO EXISTING DRAINAGE

STRUCTURE

EACH 2

* X1400410

RELOCATE EXISTING TEMPORARY

LIGHTING UNIT

EACH 2

GBSP X5030250

BRIDGE DECK GROOVING

(LONGITUDINAL)

SQ YD 6

* X5427602

REMOVE EXISTING FLARED END

SECTION

EACH 1

* Z0018400

DRAINAGE STRUCTURES TO BE

ADJUSTED

EACH 3

* JI211126 TOPSOIL FURNISH AND PLACE, 6" SQ YD 12,702

* JI251010

EROSION CONTROL BLANKET,

BIODEGRADABLE NETTING

SQ YD 8,788

* JI251015

HEAVY DUTY EROSION CONTROL

BLANKET, BIODEGRADABLE NETTING

SQ YD 15,016

* JI282010 SUBGRADE FILTER FABRIC SQ YD 18,573

Contract I-25-2032

ADDENDUM 1 P - 7R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JI312022 STABILIZED SUBBASE – WMA, 3” SQ YD 10,520

* JI406002 TEMPORARY ASPHALT WEDGE SQ YD 200

* JI406035 TEST STRIP (STONE MATRIX ASPHALT) EACH 6

* JI406037 MATERIAL TRANSFER DEVICE TON 4,012

* JI406039

STONE MATRIX WARM MIX ASPHALT

SHOULDER COURSE, IL-12.5, N80

TON 225

* JI406041

STONE MATRIX WARM MIX ASPHALT

BINDER COURSE, IL-9.5, N80

TON 1,401

* JI406048

STONE MATRIX WARM MIX ASPHALT

SURFACE FRICTION COURSE, IL12.5 N80

TON 2,386

* JI406108 ASPHALT TACK COAT (NON-TRACKING) POUND 29,908

* JI406900

CONSTRUCTING WARM MIX ASPHALT

TEST STRIP

EACH 6

* JI420041 TRANSITION APPROACH SLAB SQ YD 162.5

* JI420046

TRANSITION APPROACH SHOULDER

SLAB

SQ YD 488

* JI420906 LONGITUDINAL JOINT SEALANT FOOT 9,737

* JI440010

CONCRETE MEDIAN BARRIER AND BASE

REMOVAL

FOOT 251

* JI440015

HOT-MIX ASPHALT REMOVAL, VARIABLE

DEPTH

SQ YD 3,321

* JI481130

AGGREGATE SHOULDERS WITH FILTER

FABRIC, TYPE B 4"

SQ YD 1,736

* JI482104 WARM-MIX ASPHALT SHOULDERS (6 IN.) SQ YD 1,451

* JI482128

WARM-MIX ASPHALT SHOULDERS,

SPECIAL (9 IN.)

SQ YD 7,191

Contract I-25-2032

ADDENDUM 1 P - 8R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JI485020 TEMPORARY PAVEMENT, CLASS 2 SQ YD 2,908

* JI503006

REMOVAL OF EXISTING TRANSITION

APPROACH SLABS

SQ YD 147

* JI503007

REMOVAL OF EXISTING TRANSITION

APPROACH SHOULDER SLABS

SQ YD 133

* JI503010

HIGH PERFORMANCE CONCRETE

SUPERSTRUCTURE

CU YD 3.5

* JI551010 SLOTTED DRAIN REMOVAL FOOT 400

* JI593030

ABANDON AND FILL EXISTING STORM

SEWER

CU YD 11

* JI602518

DRAINAGE STRUCTURES TO BE

ADJUSTED WITH TYPE 20A FRAME AND

GRATE

EACH 12

* JI602519

DRAINAGE STRUCTURES TO BE

ADJUSTED WITH TWO TYPE 20A FRAME

AND GRATE

EACH 8

* JI606050 CONCRETE GUTTER (SPECIAL) FOOT 255

* JI638020

TEMPORARY MODULAR GLARE SCREEN

SYSTEM REMOVAL

FOOT 4,100

* JI642014

ASPHALT SHOULDER RUMBLE STRIP, 16

INCH

FOOT 9,275

* JI642030 MOMENT SLAB RUMBLE STRIP FOOT 872

* JI669016

REGULATED SUBSTANCES MONITORING

AND FIELD SCREENING

CAL DAY 30

* JI680125 SLOPED HEADWALL TYPE III, 24", 1:3 EACH 2

* JI680220

DOUBLE SLOPED HEADWALL TYPE III, 2-

6”,1:3

EACH 6

* JI701001 DETOUR SIGNING, LOCATION 1 L SUM 1

* JI704001

TEMPORARY CONCRETE BARRIER,

CROSS-BOLT CONNECTION

FOOT 7,175

Contract I-25-2032

ADDENDUM 1 P - 9R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JI704005

RELOCATE TEMPORARY CONCRETE

BARRIER

FOOT 15,875

* JI704006

RELOCATE TEMPORARY CONCRETE

BARRIER, CROSS-BOLT CONNECTION

FOOT 5,738

* JI706400

REMOVE TEMPORARY IMPACT

ATTENUATOR

EACH 2

** JS251115 MULCH, METHOD 2 ACRE 3.25

** JS280050 SILT FENCE FOOT 1,169

** JS280070 STABILIZED CONSTRUCTION ENTRANCE SQ YD 1,956

** JS601300 PIPE UNDERDRAINS, 6" (SPECIAL) FOOT 369

** JS601320

PIPE UNDERDRAINS, FABRIC LINED

TRENCH 6"

FOOT 1,636

** JS635010 ROADWAY DELINEATORS EACH 22

** JS670CM0 FIELD OFFICE, TYPE C (MODIFIED) CAL MO 16

** JS671020 MOBILIZATION, TOLLWAY (MODIFIED) L SUM 1

* JS701010 MAINTENANCE OF TRAFFIC L SUM 1

** JS701052

TEMPORARY INFORMATION SIGNING-

GROUND MOUNT, GREATER THAN 24 SQ

FT IN AREA

SQ FT 620

** JS720110 SIGN INSTALLATION, TYPE 2 SQ FT 129

** JS720120 SIGN INSTALLATION, TYPE 3 SQ FT 60

** JS726020

MILEPOST MARKERS ASSEMBLY,

BARRIER WALL MOUNTED

EACH 4

Contract I-25-2032

ADDENDUM 1 P - 10R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

** JS726030

MILEPOST MARKERS ASSEMBLY, POLE

MOUNTED

EACH 1

** JS726050 MILEPOST MARKER INSTALLATION SQ FT 32

** JS734G10 FOUNDATION FOR ITS GANTRY FRAME CU YD 72.2

** JS780JC1

GROOVING FOR RECESSED PAVEMENT

MARKING LINES, 7" GROOVE

FOOT 39,806

** JS780JE1

GROOVING FOR RECESSED PAVEMENT

MARKING LINES, 11" GROOVE

FOOT 2,735

** JS782022 BARRIER WALL REFLECTORS, TYPE C EACH 344

** JS810822

UNDERGROUND CONDUIT, GALVANIZED

STEEL, 3" DIA.

FOOT 21

** JS812023

CONDUIT EMBEDDED IN STRUCTURE, 2"

DIA., PVC

FOOT 1,036

** JS812027

CONDUIT EMBEDDED IN STRUCTURE, 4"

DIA., PVC

FOOT 643

** JS812028

CONDUIT EMBEDDED IN STRUCTURE, 1

1/4" DIA., PVC

FOOT 4,938

** JS813001

JUNCTION BOX, STAINLESS STEEL,

EMBEDDED IN STRUCTURE, 20" X 12" X 8"

EACH 1

** JS813010

JUNCTION BOX, STAINLESS STEEL,

EMBEDDED IN STRUCTURE, 32" X 12" X 8"

EACH 2

** JS816074

UNIT DUCT, WITH 2-1/C NO. 4 AND 1/C

NO. 6 GROUND, 600V (XLP-TYPE USE), 2"

DIA. CNC

FOOT 223

** JS816078

UNIT DUCT, WITH 4-1/C NO. 4 AND 1/C

NO. 6 GROUND, 600V (XLP-TYPE USE), 2"

DIA. CNC

FOOT 1,282

** JS817213

ELECTRIC CABLE IN CONDUIT, 600V (XLP-

TYPE USE) 1/C NO. 6

FOOT 1,185

** JS817214

ELECTRIC CABLE IN CONDUIT, 600V (XLP-

TYPE USE) 1/C NO. 4

FOOT 6,440

** JS817215

ELECTRIC CABLE IN CONDUIT, 600V (XLP-

TYPE USE) 1/C NO. 2

FOOT 6,208

Contract I-25-2032

ADDENDUM 1 P - 11R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JS821010 TEMPORARY FLOOD LIGHTING UNIT EACH 8

** JS830025

TEMPORARY WOOD POLE, 40 FT., CLASS

EACH 9

** JS836001

LIGHT POLE FOUNDATION (ROADWAY)

STEEL HELIX (7 FT) OR CONCRETE

EACH 8

** JS836005

LIGHT POLE FOUNDATION (ROADWAY)

MEDIAN, TYPE 1

EACH 3

** JS836006

LIGHT POLE FOUNDATION (ROADWAY)

MEDIAN, TYPE 2

EACH 4

** JS842080

REMOVAL OF EXISTING LIGHTING UNIT,

SALVAGE

EACH 1

** JS842105 POLE FOUNDATION, REMOVED EACH 1

* JT202009 NON-SPECIAL WASTE DISPOSAL, TYPE 1 CU YD 37,110

* JT211A08 SUBGRADE AGGREGATE 9 IN. CU YD 677

* JT211A11 SUBGRADE AGGREGATE 12 IN. CU YD 6,193

* JT250432

SEEDING, CLASS 2E SALT TOLERANT

ROADSIDE MIX (SPECIAL)

ACRE 2.50

* JT250446 SEEDING, GRASS-FORB MIX 2 (SPECIAL) ACRE 2.75

* JT301010 GRANULAR SUBBASE, SPECIAL CU YD 67

* JT311040

AGGREGATE SUBGRADE

IMPROVEMENT, SPECIAL

CU YD 2,050

* JT320200

GEOGRID FOR SUBGRADE SOIL

STABILIZATION

SQ YD 18,573

* JT420103

JOINTED PLAIN CONCRETE PAVEMENT

FOR COMPOSITE PAVEMENT 10.25"

SQ YD 1,743

* JT420104

JOINTED PLAIN CONCRETE PAVEMENT

FOR COMPOSITE PAVEMENT 11"

SQ YD 8,196

* JT421510 SLEEPER SLAB SQ YD 26

* JT486010

SAWED / SEALED ASPHALT EXPANSION

JOINTS, 1"

FOOT 18

Contract I-25-2032

ADDENDUM 1 P - 12R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JT486100

COLD MILLING CONCRETE SURFACE,

VARIABLE DEPTH

SQ YD 1,646

* JT503041

STRUCTURAL REPAIR OF CONCRETE

(DEPTH GREATER THAN 5 IN.)

SQ FT 2

* JT525125 BONDED PREFORMED JOINT SEAL, 2 IN. FOOT 18

* JT637015

CONCRETE MEDIAN BARRIER

TRANSITION, TYPE V-DF

FOOT 104

* JT637800

CONCRETE BARRIER DOUBLE FACE, TL-

5, 44 INCH

FOOT 901

* JT637801

BASE FOR CONCRETE BARRIER DOUBLE

FACE, TL-5, 44 INCH

FOOT 901

* JT637810

CONCRETE BARRIER DOUBLE FACE, TL-

5, VARIABLE HEIGHT

FOOT 304

* JT637811

BASE FOR CONCRETE BARRIER DOUBLE

FACE, TL-5, VARIABLE HEIGHT

FOOT 49

* JT637816

BASE FOR CONCRETE BARRIER DOUBLE

FACE, TL-5, VARIABLE HEIGHT, 5 FEET

FOOT 255

* JT669030 EARTHWORK CONSTRUCTION PLAN L SUM 1

* JT669040

EARTHWORK FINAL CONSTRUCTION

REPORT

L SUM 1

* JT704040

EXISTING TEMPORARY CONCRETE

BARRIER, REMOVED

FOOT 12,556

* JT740210

ITS GANTRY FRAME (STEEL), TWO SPAN

(INSTALL ONLY)

EACH 2

* JT780310

MULTI-POLYMER PAVEMENT MARKING -

LINE 6"

FOOT 59,598

* JT780320

MULTI-POLYMER PAVEMENT MARKING -

LINE 10"

FOOT 10,259

* JT780325

MULTI-POLYMER PAVEMENT MARKING -

LINE 12"

FOOT 3,155

* JT780340

MULTI-POLYMER PAVEMENT MARKING -

LETTERS (8 FT.)

SQ FT 147

Contract I-25-2032

ADDENDUM 1 P - 13R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JT780355

MULTI-POLYMER PAVEMENT MARKING -

SYMBOLS (LARGE)

SQ FT 80

* JT783005

WATERBLAST PAVEMENT MARKING

REMOVAL WITH VACUUM RECOVERY

SQ FT 36,781

* JT810876

UNDERGROUND CONDUIT, COILABLE

NONMETALLIC CONDUIT, SDR 11, 2" DIA.

FOOT 88

* JT830036 LIGHTING UNIT (INSTALL ONLY) EACH 18

* JT842130

REMOVE EXISTING TEMPORARY

LIGHTING UNIT

EACH 19

* JT901130 DEWATERING L SUM 1

TOTAL AMOUNT OF CORE WORK

Contract I-25-2032

ADDENDUM 1 P - 14R March 11, 2026

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

* JT155001 CONTRACTOR'S QUALITY PROGRAM L SUM 1 340,000.00 340,000.00

* JT151500

CONTRACT ADJUSTMENT ALLOWANCE FOR

TEMPERATURE CONTROL OF CONCRETE

UNIT 100,000 1.00 100,000.00

* JT154008

UNFORESEEN ADDITIONAL MAINTENANCE

OF TRAFFIC

UNIT 150,000 1.00 150,000.00

* JT154015

ALLOWANCE FOR UNFORESEEN DRAINAGE

WORK

UNIT 75,000 1.00 75,000.00

* JT154049

CONTRACT ALLOWANCE FOR INCENTIVE

PAYMENT OF PAVEMENT SURFACE

SMOOTHNESS

UNIT 25,000 1.00 25,000.00

* JT154095

CONTRACT ALLOWANCE FOR MAINTAIN

LIGHTING SYSTEMS

UNIT 30,000 1.00 30,000.00

* JT154207

ALLOWANCE FOR TESTING OF

UNCLASSIFIED SOIL

UNIT 250,000 1.00 250,000.00

999NEG04

NON-COMPLIANCE WITH TOLLWAY

MAINTENANCE OF TRAFFIC PER TOLLWAY

SUPPL. SPEC. 701.08(a)

INC/DAY (2,500.00)

999NEG05

FAILURE TO RESPOND TO RE-ESTABLISH

DEVICES PER TOLLWAY SUPPL. SPEC.

701.08(b)

OCCUR (2,500.00)

999NEG06

FAILURE TO REPAIR IMPACT ATTENUATORS,

TEMPORARY PER TOLLWAY SUPPL. SPEC.

701.08 (c )

OCCUR (2,500.00)

999NEG20

DAMAGES TO ILLINOIS TOLLWAY'S

OPERATIONAL FACILITITES PER S.P. 115.5 -

TRI-STATE

OCCUR (10,000.00)

999NEG31

DAMAGE TO ELECTRICAL FACILITIES PER

TOLLWAY SUPPL. SPEC. 107.30 (b)

INC/DAY (1,000.00)

999NEG32

LIQUIDATED DAMAGES FOR DELAY IN

SUBMITTAL OF PROGRESS SCHEDULE PER

TOLLWAY SUPPL. SPEC. 108.02 (e)

DAY (300.00)

999NEG33

NON-COMPLIANCE WITH EROSION AND

SEDIMENT CONTROL PER TOLLWAY SUPPL.

SPEC. 280.02 (2)(1)

INC/DAY (1,000.00)

999NEG34

NON-COMPLIANCE WITH RESPONSIBILITY

FOR CONSTRUCTION HAULING EQUIPMENT

PER TOLLWAY SUPPL. SPEC. 105.15

DAY (1,000.00)

999NEG35

FAILURE TO RESPOND TO REGULATORY

AGENCY REQUESTS, PER TOLLWAY SUPPL.

SPEC. 280.02 (2)(2)

OCCUR (25,000.00)

999NEG36

FAILURE TO COMPLY WITH OCCUPANCY

DATE OR PROVIDE COMPLETE FACILITIES.

FIELD OFFICE OR LAB PER TOLLWAY SUPPL.

SPEC. 670.01 (b)

DAY (500.00)

Contract I-25-2032 P - 15 February 13, 2026 gthiesse Rectangle

NO.

DESIGNATION UNIT QUANTITY

UNIT PRICE

DOLLAR

AMOUNT

DOLLAR

CONTRACT I-25-2032

THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY

ROADWAY RECONSTRUCTION

NORTH OF ST. CHARLES TO NORTH AVENUE

SCHEDULE OF PRICES

TRI-STATE TOLLWAY (I-294)

MILEPOST 32.4 TO MILEPOST 33.6

999NEG42

NON-COMPLIANCE WITH MAINTAIN LIGHTING

SYSTEM, PER TOLLWAY SUPPL. SPEC.

846.06 (a)

INC/DAY (1,000.00)

999NEG43

FAILURE TO RESPOND TO MAINTAIN

LIGHTING SYSTEM, PER TOLLWAY SUPPL.

SPEC. 846.06 (b)

OCCUR (1,000.00)

999NEG44

LIQUIDATED DAMAGES FOR NON-

COMPLETION PER S.P. 105.1.1

CAL DAY (7,500.00)

999NEG45

LIQUIDATED DAMAGES FOR NON-

COMPLETION PER S.P. 105.1.2

CAL DAY (15,000.00)

999NEG46

LIQUIDATED DAMAGES FOR NON-

COMPLETION PER S.P. 105.1.3

CAL DAY (6,000.00)

999NEG47

LIQUIDATED DAMAGES FOR NON-

COMPLETION PER S.P. 105.1.4

CAL DAY (12,000.00)

999NEG49

DAMAGE TO FIBER OPTIC UTILITIES PER S.P.

115.3

OCCUR (10,000.00)

999NEG53

NON-COMPLIANCE WITH CONTRACTOR

QUALITY PROGRAM SPECIAL PROVISION

OCCUR (1,000.00)

TOTAL AMOUNT OF CONTINGENCY WORK + CONTRACTOR'S QUALITY PROGRAM (QCP) 970,000.00

ECP BID CREDIT

AWARD CRITERIA

S.P. COLUMN LEGEND

* INDICATES SPECIAL PROVISION

** INDICATES TOLLWAY SUPPLEMENTAL SPECIFICATIONS

TOTAL AMOUNT OF CORE WORK + TOTAL AMOUNT OF CONTINGENCY WORK +

CONTRACTOR'S QUALITY PROGRAM = TOTAL AMOUNT OF BASE BID

Contract I-25-2032 P - 16 February 13, 2026 gthiesse Rectangle

Contract I-25-2032 ADDENDUM 1 J-2R March XX, 2026

Specifications and Recurring Special provisions adopted January 1, 2026, Illinois Tollway Supplemental Specifications to said Standard Specifications issued January 1, 2026, and all Illinois Tollway Construction Bulletins in effect at the time of bidding, shall govern this work except as herein amended.

S.P. 102 CONTRACT I-25-2032 INDEX OF DRAWINGS

VOLUME 1

DRAWING

NO.

SHEET NO. SHEET DESCRIPTION

1 TITLE SHEET

2 GEN-01 INDEX OF DRAWINGS & LIST OF STANDARDS

3 GEN-02 GENERAL NOTES

4 JUR-01 JURIDICTIONAL MAP

5 PS-01 PROGRESS SCHEDULE

6-9 SOQ-01 – SOQ-04 SUMMARY OF QUANTITIES

10-12 SCH-01 – SCH-03 EARTHWORK SCHEDULE

13-17 SCH-05 – SCH-09 SCHEDULE OF QUANTITIES

18-20 ALT-01 – ALT-03 ALIGNMENT PLANS

21-35 TYP-01 – TYP-15 TYPICAL SECTIONS

36-77 MOT-01 – MOT-42 MAINTENANCE OF TRAFFIC PLANS

78-81 REM-01 – REM-04 REMOVAL PLANS

82-85 RDY-01 – RDY-04 ROADWAY PLANS

86-90 RDY-05 – RDY-09 ROADWAY PROFILES

91-103 RDY-10 – RDY-22 ROADWAY DETAILS

104-108 DRN-01 – DRN-05 DRAINAGE PLANS

109 PEL-01 PAVEMENT ELEVATION PLANS

110 GRD-01 GRADING PLAN

111 EW-01 ENVIRONMENTAL SOIL CLASSIFICATION PLAN

112 LSC-01 LANDSCAPE AND FENCING PLAN

113-115 ESC-01 – ESC-03 EROSION AND SEDIMENT CONTROL PLANS

116-121 PMK-01 – PMK-06 PAVEMENT MARKING PLANS

122-125 SGN-01 – SGN-04 SIGNING PLANS

126-133 ITS-01 – ITS-08 ITS PLANS

134-146 LTG-01 – LTG-13 LIGHTING PLANS

147-155 XS-01 – XS-09 CROSS SECTIONS

155A-155E SA-01 – SA-05 BN233 REPAIRS

March 20, 2026 March 11, 2026

ADDENDUM 1 J-11R March 11, 2026 to complete The Work by the Contract Completion Date specified in S.P. 103.1, the Substantial Completion Date specified in S.P. 103.2, the Interim Completion Dates specified in S.P. 103.3, and S.P. 103.4 and in accordance with the hour restrictions provided in the Contract Documents.

S.P. 110 LIST OF INCIDENTALS TO THE PAY ITEMS

The Contractor's attention is called to several specific incidental work items as noted on the Contract Plans and Special Provisions and in addition to the lists in the Standard Specifications. Listed below is a listing of these items for general information only. The list is not intended to be all-inclusive and, therefore, the Contractor is responsible to perform all work according to the Plans, Special Provisions, and the Standard Specifications.

Pay Item No.

Designation Incidental Work

20200100 EARTH EXCAVATION Ducts and cables from abandoned fiber optic or electrical systems.

Removal of existing coarse aggregate or riprap.

Removal of existing aggregate shoulder

Removal of existing pipe underdrains

44000100

PAVEMENT REMOVAL

Transverse saw cuts

50102400 CONCRETE REMOVAL Clean, straighten, and incorporate existing rebar extending into removal area

50800205 REINFORCEMENT BARS,

EPOXY COATED

Replace damaged/unusable rebar (per Engineer) with lap spikes, mechanical splicers, or epoxy-grouted dowels (location Engineer-approved)

Repair epoxy coating damage per Article 508.04 of the Standard Specifications

Addendum 1 J-57R March XX, 2026 or equivalent. Fogging equipment attached to the finishing machine will not be permitted.”

Method of Measurement. This work will be measured in accordance with Article 503.21 of the Standard Specifications.

Reinforcement bars will be measured for payment according to the Illinois Tollway special provision for Reinforcement Bars.

Basis of Payment. This work will be paid in accordance with Article 503.22 of the Standard Specifications except as follows:

Revise the first paragraph of Article 503.22 of the Standard Specifications to read:

“This work will be paid for at the contract unit price per cubic yard for CONCRETE STRUCTURES, CONCRETE SUPERSTRUCTURE, HIGH PERFORMANCE CONCRETE SUPERSTRUCTURE, and

HIGH PERFORMANCE CONCRETE MOMENT SLAB STRUCTURES.”

Revise the last paragraph of Article 503.22 of the Standard Specifications to read:

Concrete protected according to Article 1020.13(d) will be paid for at the adjusted unit prices which will be the following percentages of the contract unit price of the classes of concrete involved.

Revise the Unit Price Adjustments Table in Article 503.22 of the Standard Specifications to read as follows:

UNIT PRICE ADJUSTMENTS

Type of Construction

Percent Adjustment in Unit Price

For concrete in substructures, culverts (having a waterway opening of more than 10 sq. ft, pump houses, and retaining walls (except concrete pilings, footings, and seal coats):

When protected by:

Protection Method II Protection Method I

115 % 110 %

For concrete in superstructures and moment slabs:

When protected by:

Protection Method II Protection Method I Protection Method IA Protection Method IB

123 % 115 % 108 % 115 %

For concrete in footings:

When protected by Method I or II

107 %

For concrete in slope walls:

When protected by Method I

107 %

Reinforcement bars will be paid for according to the Illinois Tollway special provision for Reinforcement Bars.

Pay Item Number

Designation Unit of Measure

50300225 CONCRETE STRUCTURES CU YD

50300255 CONCRETE SUPERSTRUCTURE CU YD

JI503010 HIGH PERFORMANCE CONCRETE SUPERSTRUCTURE CU YD

ADDENDUM 1 March 20, 2026 March 11, 2026

Addendum 1 J-68A 20, 2026

RELOCATE EXISTING TEMPORARY LIGHTING UNIT

DESCRIPTION. This work shall consist of removing and relocating an existing temporary lighting unit including the wood pole, mast arms and luminaires, all hardware, accessories, and connections required for a complete installation to make the temporary lighting unit fully functional at the new location as shown on the plans, as described herein and as directed by the Engineer.

CONSTRUCTION REQUIREMENTS

Removal and Reinstallation. The existing temporary lighting unit shall be disconnected and removed. The removed lighting unit shall be installed immediately at the new location. The electric cables shall be connected to power supply cables so that the reinstalled temporary lighting unit becomes operational the same evening without interruption. If the existing electric cables are not of sufficient length to make the new connection, a new continuous span of electric cables, of equal or better quality, shall be installed at no additional cost to the Illinois Tollway.

The void caused by the removal of the temporary wood pole shall be backfilled according to

Article

841.02 of the Standard Specifications.

For the removal and relocation work, the mast arm and/or luminaire may be removed and reinstalled as a unit, at the option of the Contractor, with approval from the Engineer. No additional compensation will be paid for these operations.

Any damage sustained to the temporary lighting unit during the removal and reinstallation operations shall be repaired, or replaced in kind, to the satisfaction of the Engineer at no additional cost to the Illinois Tollway. The Engineer will be the sole judge to determine the extent of the damage and the suitability of repair and/or replacement.

METHOD OF MEASUREMENT

Relocation of temporary lighting units will be measured for payment in units of each.

BASIS OF PAYMENT

This work will be paid for at the contract unit price per each for RELOCATE EXISTING

TEMPORARY LIGHTING UNIT.

March 11, 2026

Addendum 1 J-68B 20, 2026

Work to relocate the existing electric cables supplying power to the temporary lighting units will not be paid for separately and will be included in the cost of this pay item.

Pay Item

Number

Designation Unit of

Measure

X1400410 RELOCATE EXISTING TEMPORARY LIGHTING UNIT EACH

March 11, 2026

Addendum 1 J-68C March 11, 2026

BRIDGE DECK GROOVING (LONGITUDINAL)

Effective: December 29, 2014 Revised: March 29, 2017

Revise Article 503.16(a)(3)b. to read as follows.

b. Saw Cut Grooving. The grooving operation shall not be started until after the expiration of the required curing or protection period and after correcting excessive variations by grinding or cutting has been completed.

The grooves shall be cut into the hardened concrete, parallel to the centerline of the roadway, using a mechanical saw device equipped with diamond blades that will leave grooves 1/8 in. wide and 3/16 in. ± 1/16 in. deep (3 mm wide and 5 mm ± 1.5 mm deep), with a uniform spacing of 3/4 in. ± 1/16 in. (20 mm ± 1.5 mm) centers. The grooving shall typically extend the full width of the traffic lanes and terminate at the edge of the traffic lane or shoulder. If the bridge has a variable width traffic lane, the grooving shall remain parallel to the centerline of the main roadway. Any staggering of the groove terminations to accommodate the variable width shall be within the shoulders. Grooves shall not be cut closer than 3 inches (75 mm) nor further than 6 inches (150 mm) from any construction joint running parallel to the grooving. In addition, grooves shall not be cut within 6 in. ± 1 in. (150 mm ± 25 mm) from deck drains and expansion joints.

The grooving machine shall contain diamond blades mounted on a multi-blade arbor on a self- propelled machine built for grooving hardened concrete surfaces. The grooving machine shall have a depth control device that detects variations in the deck surface and adjusts the cutting head height to maintain a specified depth of groove. The grooving machine shall have a guide device to control multi-pass alignment.

The removal of slurry shall be continuous throughout the grooving operations. The grooving equipment shall be equipped with vacuum slurry pickup equipment which shall continuously pick up water and sawing dust, and pump the slurry to a collection tank. The slurry shall be disposed of offsite according to Article 202.03.

Cleanup shall be continuous throughout the grooving operation. All grooved areas of the deck shall be flushed with water as soon as possible to remove any slurry material not collected by the vacuum pickup. Flushing shall be continued until all surfaces are clean.

Method of Measurement. This work shall be measured for payment according to Article 503.21(b) except no measurement will be made for any grooving of the shoulders to accommodate a variable width traffic lane.

Basis of Payment. This work will be paid for at the contract unit price per square yard (square meter) for BRIDGE DECK GROOVING (LONGITUDINAL).

Pay Item Number Designation Unit of Measurement

X5030250

BRIDGE DECK GROOVING

(LONGITUDINAL)

SQ YD

Addendum 1 J-125A March 20, 2026

CONCRETE MEDIAN BARRIER AND BASE REMOVAL

Description. This work shall consist of the sawcutting, complete removal and disposal of the existing median barrier wall and base at locations shown on the plans and as directed by the Engineer.

Construction Requirements. All existing concrete median barrier including any concrete base, adjacent gutter, steel reinforcement if present and other appurtenances integral to the concrete barrier which interfere with the construction work shall be completely removed. The concrete barrier and base to be removed shall be saw cut full depth at the ends and all edges of portions to be removed, if it is adjacent to barrier or pavement that remains.

Any damage to existing concrete median barrier and base that is to remain in place, shall be repaired or replaced by the Contractor at no additional cost to the Illinois Tollway.

Disposal of material. Materials resulting from the removal shall be disposed of according to Article 202.03 of the Standard Specifications.

Method of Measurement. This work will be measured for payment in place in feet along the center of the median barrier wall.

Removal outside the designated limits shown on the plans will not be measured for payment.

Basis of Payment. This work will be paid for at the contract unit price per foot for CONCRETE

MEDIAN BARRIER AND BASE REMOVAL.

Designation Unit of

Measure

JI440010 CONCRETE MEDIAN BARRIER AND BASE REMOVAL FOOT

ADDENDUM 1 J-181R March 11, 2026

The Contractor will establish a target density for its Quality Control nuclear gauge from the growth curve location. The target density 95%-102% shall apply only to the specific QC gauge used. If additional QC gauges are to be used to determine density specification compliance, the Contractor shall establish a unique minimum allowable target density from the growth curve location for each gauge. Quality Assurance will test a minimum of 20% of QC required testing frequency.

All lifts shall be compacted to an average density of not less than 95 percent nor greater than 102 percent of the target density obtained on the growth curve. The average density shall be based on tests representing one day's production.

Quality Control density tests shall be performed at randomly selected locations within ¼ mile intervals. In no case shall more than one half day's production be completed without density testing being performed.

If the Contractor is not controlling the compaction process and is making no effort to take corrective action, the operation shall stop as directed by the Engineer.

After fine grading or trimming of the capping aggregate, the Contractor shall perform a final proof roll to be witnessed and approved by the Engineer to verify the stability of the subgrade aggregate.

Method of Measurement. This work will be measured for payment in cubic yards, of the thickness specified.

Basis of Payment. This work will be paid at the contract unit price per cubic yard for SUBGRADE AGGREGATE of the thickness specified.

Designation Unit of

Measure

JT211A08 SUBGRADE AGGREGATE 9 IN. CU YD

JT211A11 SUBGRADE AGGREGATE 12 IN. CU YD

ADDENDUM 1 J-228A March XX, 2026

STRUCTURAL RE IR OF CONCRETE (ILLINOIS TOLLWAY GBSP)

Effective: May 29, 2007 Revised: February 25, 2022

Description. This work shall consist of structurally repairing concrete.

Materials. Materials shall be according to the following provisions of the Standard Specifications.

Item Article/Section

(a) Portland Cement Concrete (Note 1)

(b) R1, R2, or R3 Concrete (Note2)

(c) Normal Weight Concrete (Notes 3 and 4)

(d) Shotcrete (High Performance) (Notes 5 and 6)

(e) Reinforcement Bars ............................................................ 1006.10

(f) Anchor Bolts ........................................................................ 1006.09

(g) Water

(h) Curing Compound (Type I) .................................................. 1022.01

(i) Cotton Mats .......................................................................... 1022.02

(j) Protective Coat .................................................................... 1023.01

(k) Epoxy (Note 5)

(l) Mechanical Bar Splicers ....................................................... 1006.10(a)(1)g

Note 1. The concrete shall be Class SI or DS, except the cement factor shall be a minimum

6.65 cwt/cu. yd., the coarse aggregate shall be a CA 16, and the strength shall be a minimum 4000 psi compressive at 14 days. For Class SI and DS mixes, a high range water-reducing admixture shall be used to obtain a 5-8 in. slump at the point of placement, but the cement factor shall not be reduced. A self-consolidating concrete mixture is also acceptable per Article 1020.04 of the Standard Specifications, except the mix design requirements of this note regarding the cement factor, coarse aggregate, strength, and cement factor reduction shall apply.

Note 2. The R1, R2, or R3 concrete shall be from the IDOT’s approved list of Packaged, Dry, Rapid Hardening, Cementitious Materials for Concrete Repairs. The R1, R2, or R3 concrete shall comply with the air content and strength requirements for Class SI or DS concrete as indicated in Note 1. Mixing shall be per the manufacturer’s recommendations, except the water/cement ratio shall not exceed the value specified for Class SI or DS concrete as indicated in Note 1. A high range water-reducing admixture shall be used to obtain a 5-8 in. slump, and a retarder may be required to allow time to perform the required field tests. The admixtures shall be per the manufacturer’s recommendation, and IDOT’s approved list of Concrete Admixtures shall not apply. The coarse aggregate shall be 100 percent passing the 1/2 in. sieve.

Note 3. The “high-slump” packaged concrete mixture shall be from the IDOT’s approved list of Packaged, Dry, Formed, Concrete Repair Mixtures. The materials and preparation of aggregate shall be according to ASTM C 387. The cement factor shall be 6.65 cwt/cu. yd. minimum to 7.05 cwt/cu. yd. maximum. Cement replacement with fly ash or ground granulated blast-furnace slag shall be according to Section 1020 of the Standard Specifications. The “high slump” packaged concrete mixture shall have a water-soluble chloride ion content of less than 0.40 lb./cu yd. The test shall be

March 20, 2026

PA

March 11, 2026 performed according to ASTM C 1218, and the “high slump” packaged concrete mixture shall have an age of 28 to 42 days at the time of test. The ASTM C 1218 test shall be performed by an AASHTO Re: Source Accredited lab a minimum of once every two years, and the test results shall be provided to the Department. The coarse aggregate shall be a maximum size of 1/2 in. The packaged concrete mixture shall comply with the air content and strength requirements for Class SI or DS concrete as indicated in Note 1. Mixing shall be per the manufacturer’s recommendations, except the water/cement ratio shall not exceed the value specified for Class SI or DS concrete as indicated in Note 1. A high range water-reducing admixture shall be used to obtain a 5-7 in. slump. The admixture shall be per the manufacturer’s recommendation, and IDOT’s approved list of Concrete Admixtures shall not apply.

A maximum slump of 10 in. may be permitted if no segregation is observed by the Engineer in a laboratory or field evaluation.

Note 4. The “self-consolidating concrete” packaged concrete mixture shall be from the IDOT’s approved list of Packaged, Dry, Formed, Concrete Repair Mixtures. The materials and preparation of aggregate shall be according to ASTM C 387. The cement factor shall be 6.65 cwt/cu yd minimum to 7.05 cwt/cu yd maximum. Cement replacement with fly ash or ground granulated blast-furnace slag shall be according to Section 1020 of the Standard Specifications. The “self- consolidating concrete” packaged concrete mixture shall have a water-soluble chloride ion content of less than 0.40 lb./cu yd. The test shall be performed according to ASTM C 1218, and the “self-consolidating concrete” packaged concrete mixture shall have an age of 28 to 42 days at the time of test. The ASTM C 1218 test shall be performed by an AASHTO Re: Source Accredited lab a minimum of once every two years, and the test results shall be provided to the Engineer. The concrete mixture should be uniformly graded.

The coarse aggregate shall be 100 percent passing the 1/2 in. sieve. The fine aggregate proportion shall be a maximum 50 percent by weight (mass) of the total aggregate used. The packaged concrete mixture shall comply with the air content and strength requirements for Class SI or DS concrete as indicated in Note 1. Mixing shall be per the manufacturer’s recommendations, except the water/cement ratio shall not exceed the value specified for Class SI or DS concrete as indicated in Note 1. The admixtures used to produce self-consolidating concrete shall be per the manufacturer’s recommendation, and the IDOT’s approved list of Concrete Admixtures shall not apply. The packaged concrete mixture shall meet the self-consolidating requirements of Article 1020.04 of the Standard Specifications.

Note 5. Packaged shotcrete that includes aggregate shall be from IDOT’s approved list of

Packaged High Performance Shotcrete, and tests results provided by an AASHTO Re: Source Accredited lab showing the product meets Department specifications will be required. The product shall be a packaged, pre-blended, and dry combination of materials, for the wet-mix shotcrete method shall be provided according to ASTM C 1480. A non-chloride accelerator may be used according to the shotcrete manufacturer’s recommendations. The shotcrete shall be Type FA or CA, Grade FR, and Class I. The fibers shall be Type III synthetic according to ASTM C 1116.

The packaged shotcrete shall have a maximum water-soluble chloride ion content of

0.4 lb./cu yd. The test shall be performed according to ASTM C 1218, and the hardened shotcrete shall have an age of 28 to 42 days at the time of test. The test shall be performed a minimum of once every two years.

B5 March 20, 2026 March 11, 2026

Each individual aggregate used in the packaged shotcrete shall have either a maximum ASTM C 1260 expansion of 0.16 percent or a maximum ASTM C 1293 expansion of 0.040 percent. However, the ASTM C 1260 value may be increased to

0.27 percent for each individual aggregate if the cement total equivalent alkali content (Na2O + 0.658K2O) does not exceed 0.60 percent. As an alternative to these requirements, ASTM C 1567 testing which shows the packaged shotcrete has a maximum expansion of 0.16 percent may be submitted. The ASTM C 1260, C 1293, or C 1567 test shall be performed a minimum of once every two years.

The 7- and 28-day compressive strength requirements in ASTM C 1480 shall not apply. Instead the shotcrete shall obtain a minimum compressive strength of 4000 psi at 14 days.

The packaged shotcrete shall be limited to the following proportions:

The portland cement and finely divided minerals shall be 6.05 cwt/cu. yd. to 8.50 cwt/cu. yd for Type FA and 6.05 cwt/cu. yd. to 7.50 cwt/cu. yd. for Type CA. The portland cement shall not be below 4.70 cwt/cu. yd. for Type FA or CA.

The finely divided mineral(s) shall constitute a maximum of 35 percent of the total cement plus finely divided mineral(s).

Class F fly ash is optional and the maximum shall be 20 percent by weight of cement.

Class C fly ash is optional and the maximum shall be 25 percent by weight of cement.

Ground granulated blast-furnace slag is optional and the maximum shall be 30 percent by weight of cement.

Microsilica is required and shall be a minimum of 5 percent by weight of cement, and a maximum of 10 percent. As an alternative to microsilica, high reactivity metakaolin may be used at a minimum of 5 percent by weight of cement, and a maximum of 10 percent.

Fly ash shall not be used in combination with ground granulated blast-furnace slag.

Class F fly ash shall not be used in combination with Class C fly ash. Microsilica shall not be used in combination with high reactivity metakaolin. A finely divided mineral shall not be used in combination with a blended hydraulic cement, except for microsilica or high reactivity metakaolin.

The water/cement ratio as defined in Article 1020.06 of the Standard Specifications shall be a maximum of 0.42.

The air content as shot shall be 4.0 – 8.0 percent.

Note 6. Packaged shotcrete that does not include pre-blended aggregate shall be from IDOT’s approved list of Packaged High Performance Shotcrete, and test results provided by an AMRL-accredited lab showing the product meets Department specifications will be required. The shotcrete shall be according to Note 5, except the added aggregate shall be according to Articles 1003.02 and 1004.02 of the Standard Specifications in

C5 March 20, 2026 March 11, 2026 addition to each individual aggregate meeting the maximum expansion requirements of Note 5. The aggregate gradation shall be according to the manufacturer. The shotcrete shall be batched and mixed with added aggregate according to the manufacturer.

Note 7. In addition, ASTM C 881, Type IV, Grade 2 or 3, Class A, B, or C may be used.

Equipment. Equipment shall be according to Article 503.03 of the Standard Specifications and the following.

Chipping Hammer – The chipping hammer for removing concrete shall be a light-duty pneumatic or electric tool with a 15 lb. maximum class or less.

Blast Cleaning Equipment – Blast cleaning equipment for concrete surface preparation shall be the abrasive type, and the equipment shall have oil traps.

Hydrodemolition Equipment – Hydrodemolition equipment for removing concrete shall be calibrated and shall use water according to Section 1002 of the Standard Specifications.

High Performance Shotcrete Equipment – The batching, mixing, pumping, hose, nozzle, and auxiliary equipment shall be for the wet-mix shotcrete method and shall meet the requirements of

ACI 506R.

CONSTRUCTION REQUIREMENTS

General. The repair methods shall be either formed concrete repair or shotcrete. The repair method shall be selected by the Contractor with the following rules.

(a) Rule 1. For formed concrete repair, a subsequent patch to repair the placement point after initial concrete placement will not be allowed. As an example, this may occur in a vertical location located at the top of the repair.

(b) Rule 2. Formed concrete repair shall not be used for overhead applications.

(c) Rule 3. If formed concrete repair is used for locations that have reinforcement with less than 0.75 in. of concrete cover, the concrete mixture shall contain fly ash or ground granulated blast-furnace slag at the maximum cement replacement allowed.

(d) Rule 4. Shotcrete shall not be used for any repair greater than 6 in. in depth, except in horizontal applications, where the shotcrete may be placed from above in one lift.

(e) Rule 5. Shotcrete shall not be used for column repairs greater than 4 in. in depth, unless the shotcrete mixture contains a coarse aggregate that 100 percent passes the 1/2 in.

sieve.

Temporary Shoring or Cribbing. When a temporary shoring or cribbing support system is required, the Contractor shall provide details and computations, prepared and sealed by an Illinois licensed Structural Engineer, to the Engineer for review and approval. Whenever possible the support system shall be installed prior to starting the associated concrete removal. If no system is specified, but during the course of removal the need for temporary shoring or cribbing becomes

D5 March 20, 2026 March 11, 2026 apparent or is directed by the Engineer due to a structural concern, the Contractor shall not proceed with any further removal work until an appropriate and approved support system is installed.

Concrete Removal. The Contractor shall provide ladders or other appropriate equipment for the Engineer to mark the removal areas. Repair configurations shall be kept simple, and squared corners will be preferred. The repair perimeter shall be sawed a depth of 1/2 in. or less, as required to avoid cutting the reinforcement. Any cut reinforcement shall be repaired or replaced at no additional cost to the Illinois Tollway. If the concrete is broken or removed beyond the limits of the initial saw cut, the new repair perimeter shall be recut.