Letting September 18, 2026

Notice to Bidders, Specifications and Proposal

Contract No. 61L85 MCHENRY County Section 18-00488-00-BR Route CH 27A (Johnson Road) Project 50B4-000 () District 1 Construction Funds

Prepared by F

Checked by

(Printed by authority of the State of Illinois)

NOTICE TO BIDDERS

1. TIME AND PLACE OF OPENING BIDS. Electronic bids are to be submitted to the electronic bidding system

(iCX-Integrated Contractors Exchange). All bids must be submitted to the iCX system prior to 12:00 p.m.

September 18, 2026 at which time the bids will be publicly opened from the iCX SecureVault.

2. DESCRIPTION OF WORK. The proposed improvement is identified and advertised for bids in the

Invitation for Bids as:

Contract No. 61L85 MCHENRY County Section 18-00488-00-BR Project 50B4-000 () Route CH 27A (Johnson Road) District 1 Construction Funds

Construction of a two-span IL-Beam bridge with concrete deck to carry Johnson Road over Nippersink Creek. Includes raising roadway profile, HMA roadway construction and guardrail.

3. INSTRUCTIONS TO BIDDERS. (a) This Notice, the invitation for bids, proposal and letter of award shall, together with all other documents in accordance with Article 101.09 of the Standard Specifications for Road and Bridge Construction, become part of the contract. Bidders are cautioned to read and examine carefully all documents, to make all required inspections, and to inquire or seek explanation of the same prior to submission of a bid.

(b) State law, and, if the work is to be paid wholly or in part with Federal-aid funds, Federal law requires the bidder to make various certifications as a part of the proposal and contract. By execution and submission of the proposal, the bidder makes the certification contained therein. A false or fraudulent certification shall, in addition to all other remedies provided by law, be a breach of contract and may result in termination of the contract.

4. AWARD CRITERIA AND REJECTION OF BIDS. This contract will be awarded to the lowest responsive and responsible bidder considering conformity with the terms and conditions established by the Department in the rules, Invitation for Bids and contract documents. The issuance of plans and proposal forms for bidding based upon a prequalification rating shall not be the sole determinant of responsibility. The Department reserves the right to determine responsibility at the time of award, to reject any or all proposals, to re-advertise the proposed improvement, and to waive technicalities.

By Order of the Illinois Department of Transportation

Gia Biagi, Secretary

CONTRACT 61L85

INDEX

FOR

SUPPLEMENTAL SPECIFICATIONS

AND RECURRING SPECIAL PROVISIONS

Adopted January 1, 2026

This index contains a listing of SUPPLEMENTAL SPECIFICATIONS, frequently used RECURRING SPECIAL PROVISIONS, and LOCAL ROADS AND STREETS RECURRING SPECIAL PROVISIONS.

ERRATA Standard Specifications for Road and Bridge Construction (Adopted 1-1-22) (Revised 1-1-26)

SUPPLEMENTAL SPECIFICATIONS

Std. Spec. Sec. Page No.

109 Measurement and Payment 202 Earth and Rock Excavation 204 Borrow and Furnished Excavation 207 Porous Granular Embankment 211 Topsoil and Compost 214 Grading and Shaping Ditches 406 Hot-Mix Asphalt Binder and Surface Course 407 Hot-Mix Asphalt Pavement (Full-Depth) 420 Portland Cement Concrete Pavement 502 Excavation for Structures 504 Precast Concrete Structures 509 Metal Railings 522 Retaining Walls 540 Box Culverts 542 Pipe Culverts 550 Storm Sewers 586 Granular Backfill for Structures 601 Pipe Drains, Pipe Underdrains, and French Drains 630 Steel Plate Beam Guardrail 632 Guardrail and Cable Road Guard Removal 644 High Tension Cable Median Barrier 665 Woven Wire Fence 701 Work Zone Traffic Control and Protection 781 Raised Reflective Pavement Markers 782 Reflectors 801 Electrical Requirements 821 Roadway Luminaires

1003 Fine Aggregates 1004 Coarse Aggregates 1010 Finely Divided Minerals 1020 Portland Cement Concrete ……… 1030 Hot-Mix Asphalt 1040 Drain Pipe, Tile, and Wall Drain 1042 Precast Concrete Products 1061 Waterproofing Membrane System 1067 Luminaire ……… 1097 Reflectors 1102 Hot-Mix Asphalt Equipment

RECURRING SPECIAL PROVISIONS

The following RECURRING SPECIAL PROVISIONS indicated by an “X” are applicable to this contract and are included by reference:

CHECK SHEET # PAGE NO.

1 Additional State Requirements for Federal-Aid Construction Contracts 2 Subletting of Contracts (Federal-Aid Contracts)

3 EEO

4 Specific EEO Responsibilities Non Federal-Aid Contracts 5 Required Provisions - State Contracts 6 Asbestos Bearing Pad Removal 7 Asbestos Waterproofing Membrane and Asbestos HMA Surface Removal 8 Temporary Stream Crossings and In-Stream Work Pads 9 Construction Layout Stakes

10 Use of Geotextile Fabric for Railroad Crossing 11 Subsealing of Concrete Pavements 12 Hot-Mix Asphalt Surface Correction 13 Pavement and Shoulder Resurfacing 14 Patching with Hot-Mix Asphalt Overlay Removal 15 Polymer Concrete 16 Reserved 17 Bicycle Racks 18 Temporary Portable Bridge Traffic Signals 19 Nighttime Inspection of Roadway Lighting 20 English Substitution of Metric Bolts 21 Calcium Chloride Accelerator for Portland Cement Concrete 22 Quality Control of Concrete Mixtures at the Plant 23 Quality Control/Quality Assurance of Concrete Mixtures 24 Reserved 25 Reserved 26 Temporary Raised Pavement Markers 27 Restoring Bridge Approach Pavements Using High-Density Foam 28 Portland Cement Concrete Inlay or Overlay 29 Portland Cement Concrete Partial Depth Hot-Mix Asphalt Patching 30 Longitudinal Joint and Crack Patching 31 Concrete Mix Design – Department Provided 32 Station Numbers in Pavements or Overlays

LOCAL ROADS AND STREETS RECURRING SPECIAL PROVISIONS

Table of Contents

CHECK SHEET # PAGE NO.

LRS 1 Reserved LRS 2 Furnished Excavation LRS 3 Work Zone Traffic Control Surveillance LRS 4 Flaggers in Work Zones LRS 5 Contract Claims LRS 6 Bidding Requirements and Conditions for Contract Proposals LRS 7 Bidding Requirements and Conditions for Material Proposals LRS 8 Reserved LRS 9 Bituminous Surface Treatments LRS 10 Reserved LRS 11 Employment Practices LRS 12 Wages of Employees on Public Works LRS 13 Selection of Labor LRS 14 Paving Brick and Concrete Paver Pavements and Sidewalks LRS 15 Partial Payments LRS 16 Protests on Local Lettings LRS 17 Substance Abuse Prevention Program LRS 18 Multigrade Cold Mix Asphalt LRS 19 Reflective Crack Control Treatment

TABLE OF CONTENTS

LOCATION OF PROJECT

DESCRIPTION OF PROJECT

AVAILABLE REPORTS (D1 LR)

UTILITY RELOCATION COORDINATION

BRIDGE REMOVAL RESTRICTION

COMPLETION DATE PLUS WORKING DAYS (D1)

MAINTENANCE OF ROADWAYS (D1)

TRAFFIC CONTROL PLAN (D1)

TRAFFIC CONTROL AND PROTECTION (ARTERIALS) (D1)

STATUS OF UTILITIES (D1-LR)

PUBLIC CONVENIENCE AND SAFETY (D1)

EMBANKMENT I

AGGREGATE SURFACE COURSE FOR TEMPORARY ACCESS (D1)

HOT-MIX ASPHALT BINDER AND SURFACE COURSE (D1)

HOT-MIX ASPHALT – MIXTURE DESIGN VERIFICATION AND PRODUCTION (D1)

ENGINEER’S FIELD OFFICE, TYPE A (MODIFIED)

FRICTION AGGREGATE (D1)

MINERALIZED CARBON DIOXIDE CONCRETE (D1)

TEMPORARY INFORMATION SIGNING

PROTECTION OF EXISTING TREES

EROSION CONTROL BLANKET (SPECIAL)

CHANNEL EXCAVATION

TEMPORARY ACCESS (FIELD ENTRANCE)

OUTFALL STRUCTURE

WASHOUT BASIN

RELOCATE EXISTING MAILBOX

DEWATERING

STEEL RAILING (SPECIAL)

STABILIZED CONSTRUCTION ENTRANCE

FENCE REMOVAL

RETAINING WALL REMOVAL

TEMPORARY FENCE (SPECIAL)

RODENT SHIELDS

CONSTRUCTION LAYOUT

IDOT TRAINING PROGRAM GRADUATE ON-THE-JOB TRAINING SPECIAL PROVISION

(TPG)

LR107-4

LR1030-2

STORM WATER POLLUTION PREVENTION PLAN (BDE 2342)…...…………………………...62

CONSTRUCTION CERTIFICATION STATEMENT (BDE 2342A)………………………………...74

NOTICE OF INTENT (ILR 10)…………………………………………………………………………75

MCHENRY-LAKE COUNTY SOIL & WATER CONSERVATION DISTRICT CONDITIONAL

APPROVAL………………………………………………………………………………………………80

LOCAL AGENCY LPC-662 CCDD CERTIFICATION……………………………………………….82

USACE SECTION 404 PERMIT………………………………………………………………………84

MCHENRY COUNTY PLANNING & DEVELOPMENT STORMWATER MANAGEMENT

PERMIT…………………………………………………………………………………………………..89

IDNR-OWR FLOODWAY PERMIT……………………………………………………………………94

MCHENRY COUNTY CONSERVATION DISTRICT AGREEMENT FOR PURCHASE OF

WETLAND MITIGATION CREDITS....…………………………………………………………..……97

BDE SPECIAL PROVISIONS

The following special provisions indicated by an “X” are applicable to this contract. An * indicates a new or revised special provision for the letting.

File Name Pg. Special Provision Title Effective Revised 80099 Accessible Pedestrian Signals (APS) April 1, 2003 Jan. 1, 2022

_ 80274 103 Aggregate Subgrade Improvement April 1, 2012 April 1, 2022 80192 Automated Flagger Assistance Device Jan. 1, 2008 April 1, 2023 80173 Bituminous Materials Cost Adjustments Nov. 2, 2006 Aug. 1, 2017 80426 Bituminous Surface Treatment with Fog Seal Jan. 1, 2020 April 1, 2026 80475 Bridge Deck Concrete Overlays Jan. 1, 2026 80241 Bridge Demolition Debris July 1, 2009 5053I Building Removal Sept. 1, 1990 Aug. 1, 2022 5026I Building Removal with Asbestos Abatement Sept. 1, 1990 Aug. 1, 2022 80460 106 Cement, Finely Divided Minerals, Admixtures, Concrete, and Mortar Jan. 1, 2025 Jan. 1, 2026 80384 123 Compensable Delay Costs June 2, 2017 April 1, 2019 80198 Completion Date (via calendar days) April 1, 2008 80199 Completion Date (via calendar days) Plus Working Days April 1, 2008 80461 Concrete Barrier Jan. 1, 2025 80453 127 Concrete Sealer Nov. 1, 2023 80261 128 Construction Air Quality – Diesel Retrofit June 1, 2010 Jan. 1, 2025 80476 Deck Slab Repair Jan. 1, 2026

* 80029 130 Disadvantaged Business Enterprise Participation Sept. 1, 2000 July 2, 2026 80467 134 Erosion Control Blanket Aug. 1, 2025 80229 137 Fuel Cost Adjustment April 1, 2009 Aug. 1, 2017 80452 Full Lane Sealant Waterproofing System Nov. 1, 2023 80433 Green Preformed Thermoplastic Pavement Markings Jan. 1, 2021 Jan. 1, 2022 80471 140 Guardrail Nov. 1, 2025 80472 High Friction Surface Treatment Nov. 1, 2025 80456 Hot-Mix Asphalt Jan. 1, 2024 April 1, 2026 80446 141 Hot-Mix Asphalt – Longitudinal Joint Sealant Nov. 1, 2022 Aug. 1, 2023 80438 Illinois Works Apprenticeship Initiative – State Funded Contracts June 2, 2021 April 2, 2024 80483 Inlet Filters April 1, 2026

* 80477 143 Longitudinal Tining Jan. 1, 2026 July 1, 2026 80450 Mechanically Stabilized Earth Retaining Walls Aug. 1, 2023 Aug. 1, 2025 80478 Modified Longitudinal Construction Joint Jan. 1, 2026 80464 145 Pavement Marking April 1, 2025 Nov. 1, 2025 80468 Pavement Patching Aug. 1, 2025 80441 146 Performance Graded Asphalt Binder Jan 1, 2023 April 1, 2026 80459 152 Preformed Plastic Pavement Marking June 2, 2024 3426I Railroad Protective Liability Insurance Dec. 1, 1986 Jan. 1, 2022 80473 Raised Reflective Pavement Markers Nov. 1, 2025 80455 153 Removal and Disposal of Regulated Substances Jan. 1, 2024 April 1, 2026 80474 Residential Driveway Temporary Signal Nov. 1, 2025

* 80445 155 Seeding Nov. 1, 2022 July 1, 2026 80457 161 Short Term and Temporary Pavement Markings April 1, 2024 April 2, 2024 80462 Sign Panels and Appurtenances Jan. 1, 2025 Jan. 1, 2026 80479 Sinusoidal Rumble Strips Jan. 1, 2026 80469 Slope Wall Aug. 1, 2025 80448 165 Source of Supply and Quality Requirements Jan. 2, 2023 Jan. 1, 2026 80340 Speed Display Trailer April 2, 2014 Jan. 1, 2022 80127 167 Steel Cost Adjustment April 2, 2004 Nov. 1, 2025 80480 Structural Repair of Concrete Jan. 1, 2026 80397 169 Subcontractor and DBE Payment Reporting April 2, 2018 80391 170 Subcontractor Mobilization Payments Nov. 2, 2017 April 1, 2019 80463 171 Submission of Bidders List Information Jan. 2, 2025 Mar. 2, 2025

File Name Pg. Special Provision Title Effective Revised 80482 172 Submission of Payroll Records – Federal Aid Contract April 1, 2026 80437 Submission of Payroll Records – State Contract April 1, 2021 April 1, 2026 80435 Surface Testing of Pavements – IRI Jan. 1, 2021 Jan. 1, 2023 80465 174 Surveying Services April 1, 2025 80481 Temporary Concrete Barrier Jan. 1, 2026 80466 Temporary Rumble Strips April 1, 2025

* 80484 Tolerance in Thickness for Continuously Reinforced PCC Pavement July 1, 2026 80470 Traffic Signal Backplate Aug. 1, 2025 20338 175 Training Special Provisions Oct. 15, 1975 Sept. 2, 2021 80429 Ultra-Thin Bonded Wearing Course April 1, 2020 Jan. 1, 2022 80439 178 Vehicle and Equipment Warning Lights Nov. 1, 2021 Nov. 1, 2022 80458 Waterproofing Membrane System Aug. 1, 2024 80302 179 Weekly DBE Trucking Reports June 2, 2012 Jan. 2, 2025 80454 Wood Sign Support Nov. 1, 2023 80427 180 Work Zone Traffic Control Devices Mar. 2, 2020 Jan. 1, 2026

* 80485 183 Work Zone Width Restriction July 1, 2026 80071 Working Days Jan. 1, 2002

GUIDE BRIDGE SPECIAL PROVISION INDEX/CHECK SHEET

Effective as of the: January 16, 2026 Letting

An * indicates a new or revised special provision.

Pg

√ File Name Title Effective Revised

*GBSP 4 Polymer Modified Portland Cement Mortar June 7, 1994 Oct 17, 2025 GBSP 13 High-Load Multi-Rotational Bearings Oct 13, 1988 June 28, 2024 GBSP 14 Jack and Remove Existing Bearings April 20, 1994 April 13, 2018 GBSP 16 Jacking Existing Superstructure Jan 11, 1993 April 13, 2018 GBSP 18 Modular Expansion Joint May 19, 1994 Oct 27, 2023 GBSP 21 Cleaning and Painting Contact Surface Areas of Existing Steel

Structures June 30, 2003 Oct 23, 2020

*GBSP 25 Cleaning and Painting Existing Steel Structures Oct 2, 2001 Oct 17, 2025 GBSP 26 Containment and Disposal of Lead Paint Cleaning Residues Oct 2, 2001 Apr 22, 2016 GBSP 33 Pedestrian Truss Superstructure Jan 13, 1998 Oct 27, 2023 *GBSP 34 Concrete Wearing Surface June 23, 1994 Oct 17, 2025 GBSP 45 Bridge Deck Thin Polymer Overlay May 7, 1997 June 28, 2024 GBSP 55 Erection of Curved Steel Structures June 1, 2007 GBSP 59 Diamond Grinding and Surface Testing Bridge Sections Dec 6, 2004 April 15, 2022 GBSP 60 Containment and Disposal of Non-Lead Paint Cleaning

Residues Nov 25, 2004 Apr 22, 2016

GBSP 61 Slipform Parapet June 1, 2007 April 15, 2022 GBSP 67 Structural Assessment Reports for Contractor’s Means and

Methods Mar 6, 2009 Oct 5, 2015

GBSP 71 Aggregate Column Ground Improvement Jan 15, 2009 Oct 15, 2011 184 GBSP 78 Bridge Deck Construction Oct 22, 2013 Dec 21, 2016 186 GBSP 79 Bridge Deck Grooving (Longitudinal) Dec 29, 2014 Mar 29, 2017 GBSP 81 Membrane Waterproofing for Buried Structures Oct 4, 2016 March 1, 2019 GBSP 82 Metallizing of Structural Steel Oct 4, 2016 Oct 20, 2017 GBSP 83 Hot Dip Galvanizing for Structural Steel Oct 4, 2016 June 28, 2024 GBSP 85 Micropiles Apr 19, 1996 Oct 23, 2020 GBSP 86 Drilled Shafts Oct 5, 2015 Oct 27, 2023 GBSP 87 Lightweight Cellular Concrete Fill Nov 11, 2001 Apr 1, 2016 GBSP 88 Corrugated Structural Plate Structures Apr 22, 2016 April 13, 2018 187 GBSP 89 Preformed Pavement Joint Seal Oct 4, 2016 March 24, 2023 GBSP 90 Three Sided Precast Concrete Structure (Special) Dec 21, 2016 March 22, 2024 GBSP 91 Crosshole Sonic Logging Testing of Drilled Shafts Apr 20, 2016 March 24, 2023 GBSP 92 Thermal Integrity Profile Testing of Drilled Shafts Apr 20, 2016 March 24, 2023 GBSP 93 Preformed Bridge Joint Seal Dec 21, 2016 June 28, 2024 GBSP 94 Warranty for Cleaning and Painting Steel Structures Mar 3, 2000 Nov 24, 2004 GBSP 96 Erection of Bridge Girders Over or Adjacent to Railroads Aug 9, 2019 GBSP 97 Folded/Formed PVC Pipeliner April 15, 2022 GBSP 98 Cured-in-Place Pipe Liner April 15, 2022 GBSP 99 Spray-Applied Pipe Liner April 15, 2022 194 GBSP 100 Bar Splicers, Headed Reinforcement Sept 2, 2022 Oct 27, 2023 *GBSP 101 Noise Abatement Wall, Ground Wall Dec 9, 2022 Oct 17, 2025 *GBSP 102 Noise Abatement Wall, Structure Mounted Dec 9, 2022 Oct 17, 2025 GBSP 103 Noise Abatement Wall Anchor Rod Assembly Dec 9, 2022

Johnson Road over Nippersink Creek Section 18-00488-00-BR

Project 50B4(000) McHenry County

Contract 61L85

STATE OF ILLINOIS

SPECIAL PROVISIONS

The following Special Provisions supplement the “Standard Specifications for Road and Bridge Construction" adopted January 1, 2022, the latest edition of the "Manual of Uniform Traffic Control Devices for Streets and Highways,” the "Manual of Test Procedures for Materials" in effect on the date of invitation for bids, and the Supplemental Specifications and Recurring Special Provisions indicated on the Check Sheets included herein which apply to and govern the construction of the Johnson Road over Nippersink Creek, Section No.: 18-00488-00-BR, in McHenry County, and in case of conflict with any part or parts of said specifications, the said special provisions shall take precedence and shall govern.

Johnson Road over Nippersink Creek Section 18-00488-00-BR

Project 50B4(000) McHenry County Contract 61L85

LOCATION OF PROJECT

The project is located on Johnson Road (CH 27) between O’Brien Road and Durkee Road approximately 1.51 miles north of Thayer Road and approximately 1.03 miles west of IL 47, in McHenry County, IL. The total gross and net length of the improvement is 1,275.00 feet (0.241 miles).

DESCRIPTION OF PROJECT

The work consists of the full removal of the existing two-span precast concrete box beam bridge (SN 056-3128) with a 3¾” latex concrete overlay supported on spill-thru steel HP pile bent abutments and pier. The bridge measures 97’-4¼” back-to-back abutments and 26’-0” out to out of bridge deck. The structure removal includes the removal of superstructure, substructure, piers and abutments. Additional removals include the existing roadway pavement and its appurtenances north and south of the bridge structure and tree removal. The proposed improvement consists of raising the roadway and bridge profile and replacing the existing bridge with a proposed two-span bridge (SN 056-3104) consisting of an 8” concrete deck on IL 36” PPC IL beams. The proposed substructure consists of integral abutments on 14” HP piles and solid wall encased piles bent pier (14” HP piles). The proposed bridge measures 210’-11 ½” back-to-back abutments and 36’-0” out to out of bridge deck. The proposed roadway and associated improvements include full depth hot-mix asphalt pavement and shoulder replacement and widening, hot-mix asphalt driveways, steel plate beam guardrails, temporary and permanent erosion control, seeding for landscaping, and pavement markings.

Project 50B4(000) McHenry County

Contract 61L85

AVAILABLE REPORTS (D1 LR)

Effective: July 1, 2021

☐ No project specific reports were prepared.

When applicable, the following checked reports and record information is available for Bidders’ reference upon request:

☒ Record structural plans

☐ Preliminary Site Investigation (PSI) (IDOT ROW)

☐ Preliminary Site Investigation (PSI) (Local ROW)

☐ Preliminary Environmental Site Assessment (PESA) (IDOT ROW)

☐ Preliminary Environmental Site Assessment (PESA) (Local ROW)

☒ Soils/Geotechnical Report

☒ Boring Logs

☒ Pavement Cores

☒ Location Drainage Study (LDS)

☒ Hydraulic Report

☐ Noise Analysis

☒ Other: Existing Agricultural Drain Tile Investigation, Special Waste Assessment, and Environmental Report for LPC 662

Those seeking these reports should request access from:

The project website at http://www.mchenrycountyil.gov/departments/transportation/projects/johnson

OR

Ms. Samantha Dittrich McHenry County Division of Transportation Phone: (815) 334-4960 Fax: (815) 334-4989 sldittrich@mchenrycountyil.gov

Project 50B4(000) McHenry County

Contract 61L85

UTILITY RELOCATION COORDINATION

Removal of trees 3 inches or greater in diameter at breast height shall not be cleared from April 1st through October 11th of any given year. As a result of this restriction, utility relocations can only be performed outside of the restriction period and after the Contractor has completed the removal of trees. The Contractor will be required to coordinate and cooperate with the utilities for the required relocation of their facilities during construction.

BRIDGE REMOVAL RESTRICTION

Bridge closure and removal of the existing Johnson Road bridge (SN 056-3128) shall occur on or after March 15, 2027. The actual closure date is subject to weather conditions, MCDOT winter operations, and the approval of the Resident Engineer.

Project 50B4(000) McHenry County

Contract 61L85

COMPLETION DATE PLUS WORKING DAYS (D1)

Effective: September 30, 1985 Revised: January 1, 2007

Revise Article 108.05 (b) of the Standard Specifications as follows:

"When a completion date plus working days is specified, the Contractor shall complete all contract items and safely open all roadways to traffic by 11:59 PM on October 30, 2027 except as specified herein.

The Contractor will be allowed to complete all clean-up work and punch list items within 10 working days after the completion date for opening the roadway to traffic. Under extenuating circumstances the Engineer may direct that certain items of work, not affecting the safe opening of the roadway to traffic, may be completed within the working days allowed for clean up work and punch list items. Temporary lane closures for this work may be allowed at the discretion of the Engineer.

Article 108.09 or the Special Provision for “Failure to Complete the Work on Time”, if included in this contract, shall apply to both the completion date and the number of working days.

Project 50B4(000) McHenry County

Contract 61L85

MAINTENANCE OF ROADWAYS (D1)

Effective: September 30, 1985 Revised: November 1, 1996

Beginning on the date that work begins on this project, the Contractor shall assume responsibility for normal maintenance of all existing roadways within the limits of the improvement. This normal maintenance shall include all repair work deemed necessary by the Engineer but shall not include snow removal operations. Traffic control and protection for maintenance of roadways will be provided by the Contractor as required by the Engineer.

If items of work have not been provided in the contract, or otherwise specified for payment, such items, including the accompanying traffic control and protection required by the Engineer, will be paid for in accordance with Article 109.04 of the Standard Specifications.

Project 50B4(000) McHenry County

Contract 61L85

TRAFFIC CONTROL PLAN (D1)

Effective: September 30, 1985 Revised: January 1, 2007

Traffic Control shall be according to the applicable sections of the Standard Specifications, the Supplemental Specifications, the "Illinois Manual on Uniform Traffic Control Devices for Streets and Highways", any special details and Highway Standards contained in the plans, and the Special Provisions contained herein.

Special attention is called to Article 107.09 of the Standard Specifications and the following Highway Standards, Details, Quality Standard for Work Zone Traffic Control Devices, Recurring Special Provisions and Special Provisions contained herein, relating to traffic control.

The Contractor shall contact the District One Bureau of Traffic at least 72 hours in advance of beginning work.

STANDARDS:

701001-02 Off-Rd Operations, 2L, 2W, More Than 15’ Away 701006-05 Off-Rd Operations, 2L, 2W, 15’ To 24’ From Pavement Edge 701201-05 Lane Closure, 2L, 2W, Day Only, For Speeds ≥ 45 mph 701301-04 Lane Closure, 2L, 2W, Short Time Operations 701311-03 Lane Closure 2L, 2W Moving Operations – Day Only 701901-11 Traffic Control Devices

DETAILS:

TC-10 Traffic Control and Protection for Side Roads, Intersections, and Driveways TC-13 Typical Pavement Markings TC-21 Detour Signing Information Sign TC-26 Driveway Entrance Signing

SPECIAL PROVISIONS:

Maintenance of Roadways – D1 Temporary Information Signing Public Convenience and Safety – D1 Work Zone Traffic Control Devices (BDE) Traffic Control and Protection (Arterials) Vehicle and Equipment Warning Lights (BDE) Work Zone Width Restriction (BDE)

Project 50B4(000) McHenry County

Contract 61L85

TRAFFIC CONTROL AND PROTECTION (ARTERIALS) (D1)

Effective: February 1, 1996 Revised: March 1, 2011

Specific traffic control plan details and Special Provisions have been prepared for this contract.

This work shall include all labor, materials, transportation, handling and incidental work necessary to furnish, install, maintain and remove all traffic control devices required as indicated in the plans and as approved by the Engineer.

When traffic is to be directed over a detour route, the Contractor shall furnish, erect, maintain and remove all applicable traffic control devices along the detour route according to the details shown in the plans.

Method of Measurement: All traffic control (except Traffic Control and Protection (Expressways) and temporary pavement markings) indicated on the traffic control plan details and specified in the Special Provisions will be measured for payment on a lump sum basis.

Basis of Payment: All traffic control and protection will be paid for at the contract lump sum price for TRAFFIC CONTROL AND PROTECTION (SPECIAL).

Temporary pavement markings will be paid for separately unless shown on a Standard.

Project 50B4(000) McHenry County

Contract 61L85

STATUS OF UTILITIES (D1-LR)

Effective: January 13, 2026

Utility companies and/or municipal owners located within the construction limits of this project have provided the following information regarding their facilities and the proposed improvements.

The tables below contain a description of specific conflicts to be resolved and/or facilities which will require some action on the part of the Department’s contractor to proceed with work. Each table entry includes an identification of the action necessary and, if applicable, the estimated duration required for the resolution.

UTILITIES TO BE ADJUSTED

Conflicts noted below have been identified by following the suggested staging plan included in the contract. The company has been notified of all conflicts and will be required to obtain the necessary permits to complete their work; in some instances, resolution will be a function of the construction staging. The responsible agency must relocate, or complete new installations as noted below; this work has been deemed necessary to be complete for the Department’s contractor to then work in the stage under which the item has been listed.

Pre-Stage

STAGE /

LOCATION TYPE DESCRIPTION RESPONSIBLE

AGENCY

DURATION

OF TIME

Johnson Road

(West Parkway) Sta.7+40 LT to Sta. 20+15 LT

Electrical (4kV)

ComEd Poles (6 Each), associated Aerial

Wire (1,080 feet) and equipment to be relocated

ComEd 28 days

Johnson Road Sta. 7+72 LT Sta. 9+73 LT Sta. 15+85 LT

Electrical (4kV)

Underground cable (300 feet) ComEd 14 days

Johnson Road (West Parkway) Sta. 7+40 LT to Sta. 20+15 LT

Buried Copper Cable

Frontier buried copper cable to be abandoned and relocated with new along west side

Frontier Communications 21 days

Johnson Road Sta. 9+42.19

22.56’ RT

Telecom Pedestal

Remove and replace outside of project limits

Johnson Road Sta. 9+72.02

25.71’ LT

Telecom Pedestal

Remove and replace outside of project limits

Johnson Road Sta. 17+30.63

23.59’ LT

Telecom Pedestal

Remove and replace outside of project limits

Pre-Stage: 49 Days Total Installation

Project 50B4(000) McHenry County

Contract 61L85

The following contact information is what was used during the preparation of the plans as provided by the Agency/Company responsible for resolution of the conflict.

Agency/Company Responsible to

Resolve Conflict

Name of contact Phone E-mail address

ComEd Paul Casperson 630-234-4859 Paul.Casperson@Comed.com Frontier

Communications Kalin Hinshaw 815-895-1515 Kalin.hinshaw@ftr.com

UTILITIES TO BE WATCHED AND PROTECTED

The areas of concern noted below have been identified by following the suggested staging plan included for the contract. The information provided is not a comprehensive list of all remaining utilities, but those which during coordination were identified as ones which might require the Department’s contractor to take into consideration when making the determination of the means and methods that would be required to construct the proposed improvement. In some instances, the contractor will be responsible to notify the owner in advance of the work to take place so necessary staffing on the owner’s part can be secured.

No facilities requiring extra consideration.

The following contact information is what was used during the preparation of the plans as provided by the owner of the facility.

Agency/Company Responsible to

Resolve Conflict

Name of contact Phone E-mail address

ComEd Paul Casperson 630-234-4859 Paul.Casperson@Comed.com Frontier

Communications Kalin Hinshaw 815-895-1515 Kalin.hinshaw@ftr.com

The above represents the best information available to the Department and is included for the convenience of the bidder. The days required for conflict resolution should be considered in the bid as this information has also been factored into the timeline identified for the project when setting the completion date. The applicable portions of the Standard Specifications for Road and Bridge Construction shall apply.

Estimated duration of time provided above for the first conflicts identified will begin on the date of the executed contract regardless of the status of the utility relocations. The responsible agencies will be working toward resolving subsequent conflicts in conjunction with contractor activities in the number of days noted.

Project 50B4(000) McHenry County

Contract 61L85

The estimated relocation duration must be part of the progress schedule submitted by the contractor. A utility kickoff meeting will be scheduled between the Department, the Department’s contractor, and the utility companies when necessary.

The contractor is responsible for contacting JULIE (or DIGGER within the City of Chicago) prior to any excavation work. Please note that IDOT electrical facilities are not part of the one-call locating services, such as JULIE or DIGGER.

If the contract requires the services of an electrical contractor, it is the contractor’s responsibility, at their own expense, to locate existing IDOT and/or local agency electrical facilities before commencing work. For contracts that do not require an electrical contractor, the contractor may request one free locate of IDOT electrical facilities by contacting the Department’s Electrical Maintenance Contractor and/or the appropriate local agency electrical maintenance contractor.

Additional locate requests will be at the contractor’s expense.

For work on or near IDOT ROW on contracts without an electrical contractor, the Department’s Electrical Maintenance Contractor must be notified at least 72 hours in advance of the work by calling 773-287-7600 or emailing dispatch@meade100.com to arrange for the locating of underground electrical facilities.

Please note, the marking of underground facilities does not absolve the contractor of their responsibility to repair or replace any facilities damaged during construction at their expense.

Project 50B4(000) McHenry County

Contract 61L85

PUBLIC CONVENIENCE AND SAFETY (D1)

Effective: May 1, 2012 Revised: July 15, 2012

Add the following to the end of the fourth paragraph of Article 107.09:

“If the holiday is on a Saturday or Sunday, and is legally observed on a Friday or Monday, the length of Holiday Period for Monday or Friday shall apply.”

Add the following sentence after the Holiday Period table in the fourth paragraph of Article 107.09:

“The length of Holiday Period for Thanksgiving shall be from 5:00 AM the Wednesday prior to 11:59 PM the Sunday after”

Delete the fifth paragraph of Article 107.09 of the Standard Specifications:

“On weekends, excluding holidays, roadways with Average Daily Traffic of 25,000 or greater, all lanes shall be open to traffic from 3:00 P.M. Friday to midnight Sunday except where structure construction or major rehabilitation makes it impractical.”

Project 50B4(000) McHenry County

Contract 61L85

EMBANKMENT I

Effective: March 1, 2011 Revised: November 1, 2013

Description. This work shall be according to Section 205 of the Standard Specifications except for the following.

Material. All material shall be approved by the District Geotechnical Engineer. The proposed material must meet the following requirements.

a) The laboratory Standard Dry Density shall be a minimum of 90 lb/cu ft (1450 kg/cu m) when determined according to AASHTO T 99 (Method C).

b) The organic content shall be less than ten percent determined according to AASHTO T 194 (Wet Combustion).

c) Soils which demonstrate the following properties shall be restricted to the interior of the embankment and shall be covered on both the sides and top of the embankment by a minimum of 3 ft (900 mm) of soil not considered detrimental in terms of erosion potential or excess volume change.

1) A grain size distribution with less than 35 percent passing the number 75 um (#200) sieve.

2) A plasticity index (Pl) of less than 12.

3) A liquid limit (LL) in excess of 50.

d) Reclaimed asphalt shall not be used within the ground water table or as a fill if ground water is present.

e) The RAP used shall be according to the current Bureau of Materials and Physical Research Policy Memorandum, “Reclaimed Asphalt Pavement (RAP) for Aggregate Applications”. Gradation deleterious count shall not exceed 10% of total RAP and 5% of other by total weight.

CONSTRUCTION REQUIREMENTS

Samples. Embankment material shall be sampled, tested, and approved before use. The contractor shall identify embankment sources, and provide equipment as the Engineer requires, for the collection of samples from those sources. Samples will be furnished to the Geotechnical Engineer a minimum of three weeks prior to use in order that laboratory tests for approval and compaction can be performed. Embankment material placement cannot begin until tests are completed and approval given.

Project 50B4(000) McHenry County

Contract 61L85

Placing Material. In addition to Article 202.03, broken concrete, reclaimed asphalt with no expansive aggregate, or uncontaminated dirt and sand generated from construction or demolition activities shall be placed in 6 inches (150 mm) lifts and disked with the underlying lift until a uniform homogenous material is formed. This process also applies to the overlaying lifts. The disk must have a minimum blade diameter of 24 inches (600 mm).

When embankments are to be constructed on hillsides or existing slopes that are steeper than 3H:1V, steps shall be keyed into the existing slope by stepping and benching as shown in the plans or as directed by the engineer.

Compaction. Soils classification for moisture content control will be determined by the Soils Inspector using visual field examination techniques and the IDH Textural Classification Chart.

When tested for density in place each lift shall have a maximum moisture content as follows.

a) A maximum of 110 percent of the optimum moisture for all forms of clay soils.

b) A maximum of 105 percent of the optimum moisture for all forms of clay loam soils.

Stability. The requirement for embankment stability in Article 205.04 will be measured with a Dynamic Cone Penetrometer (DCP) according to the test method in the IDOT Geotechnical Manual. The penetrate on rate must be equal or less than 1.5 inches (38 mm) per blow.

Basis of Payment. This work will not be paid separately but will be considered as included in the various items of excavation.

Project 50B4(000) McHenry County

Contract 61L85

AGGREGATE SURFACE COURSE FOR TEMPORARY ACCESS (D1)

Effective: April 1, 2001 Revised: January 2, 2007

Revise Article 402.10 of the Standard Specifications to read:

“402.10 For Temporary Access. The contractor shall construct and maintain aggregate surface course for temporary access to private entrances, commercial entrances and roads according to Article 402.07 and as directed by the Engineer.

The aggregate surface course shall be constructed to the dimensions and grades specified below, except as modified by the plans or as directed by the Engineer.

(a) Private Entrance. The minimum width shall be 12 ft (3.6 m). The minimum compacted thickness shall be 6 in. (150 mm). The maximum grade shall be eight percent, except as required to match the existing grade.

(b) Commercial Entrance. The minimum width shall be 24 ft (7.2 m). The minimum compacted thickness shall be 9 in. (230 mm). The maximum grade shall be six percent, except as required to match the existing grade.

(c) Road. The minimum width shall be 24 ft (7.2 m). The minimum compacted thickness shall be 9 in. (230 mm). The grade and elevation shall be the same as the removed pavement, except as required to meet the grade of any new pavement constructed.

Maintaining the temporary access shall include relocating and/or regrading the aggregate surface coarse for any operation that may disturb or remove the temporary access. The same type and gradation of material used to construct the temporary access shall be used to maintain it.

When use of the temporary access is discontinued, the aggregate shall be removed and utilized in the permanent construction or disposed of according to Article 202.03.”

Add the following to Article 402.12 of the Standard Specifications:

“Aggregate surface course for temporary access will be measured for payment as each for every private entrance, commercial entrance or road constructed for the purpose of temporary access. If a residential drive, commercial entrance, or road is to be constructed under multiple stages, the aggregate needed to construct the second or subsequent stages will not be measured for payment but shall be included in the cost per each of the type specified.”

Revise the second paragraph of Article 402.13 of the Standard Specifications to read:

Project 50B4(000) McHenry County

Contract 61L85

“Aggregate surface course for temporary access will be paid for at the contract unit price per each for TEMPORARY ACCESS (PRIVATE ENTRANCE), TEMPORARY ACCESS (COMMERCIAL ENTRANCE) or TEMPORARY ACCESS (ROAD).

Partial payment of the each amount bid for temporary access, of the type specified, will be paid according to the following schedule:

(a) Upon construction of the temporary access, sixty percent of the contract unit price per each, of the type constructed, will be paid.

(b) Subject to the approval of the Engineer for the adequate maintenance and removal of the temporary access, the remaining forty percent of the pay item will be paid upon the permanent removal of the temporary access.”

Project 50B4(000) McHenry County

Contract 61L85

HOT-MIX ASPHALT BINDER AND SURFACE COURSE (D1)

Effective: November 1, 2019 Revised: April 1, 2026

Add the following to the end of Article 406.06(c) of the Standard Specifications:

“ The amount of HMA binder course placed shall be limited to that which can be surfaced during the same construction season.”

Revise the fifteenth through eighteenth paragraphs of Article 406.14 of the Standard Specifications to read:

“ The mixture used in constructing acceptable HMA test strips will be paid for at the contract unit price. Unacceptable HMA test strips shall be removed and replaced at no additional cost to the Department.”

Revise Article 1004.03(c) to read:

“(c) Gradation. The coarse aggregate gradations shall be as listed in the following table.

Use Size/Application Gradation No.

Class A-1, A-2, & A-3 3/8 in. (10 mm) Seal CA 16 or CA 20 Class A-1 1/2 in. (13 mm) Seal CA 15 Class A-2 & A-3 Cover Coat CA 14

HMA High ESAL

IL-19.0;

Stabilized Subbase IL-19.0

CA 11 1/

SMA 12.5 2/ CA 134/, CA 14, or CA 16 SMA 9.5 2/ CA 133/4/ or CA 163/

IL-9.5 CA 16, CM 134/

IL-9.5FG CA 16

HMA Low ESAL

IL-19.0L CA 11 1/

IL-9.5L CA 16

1/ CA 16 or CA 13 may be blended with the CA 11.

2/ The coarse aggregates used shall be capable of being combined with the fine aggregates and mineral filler to meet the approved mix design and the mix requirements noted herein.

3/ The specified coarse aggregate gradations may be blended.

4/ CA 13 shall be 100 percent passing the 1/2 in. (12.5mm) sieve.”

Project 50B4(000) McHenry County

Contract 61L85

Revise Article 1004.03(e) of the Standard Specifications to read:

“(e) Absorption. For SMA the coarse aggregate shall also have water absorption ≤ 2.0 percent.”

Revise the “High ESAL” portion of the table in Article 1030.01 to read:

“High ESAL Binder Courses

IL-19.0, IL-9.5, IL-9.5FG, IL-4.75,

SMA 12.5, SMA 9.5

Stabilized Subbase IL-19.0

Surface Courses IL-9.5, IL-9.5FG, SMA 12.5, SMA 9.5”

Revise Note 2. and add Note 6 to Article 1030.02 of the Standard Specifications to read:

“Item Article/Section

(g)Performance Graded Asphalt Binder (Note 6) 1032

(h) Fibers (Note 2)

Note 2. A stabilizing additive such as cellulose or mineral fiber shall be added to the SMA mixture according to Illinois Modified AASHTO M 325. The stabilizing additive shall meet the Fiber Quality Requirements listed in Illinois Modified AASHTO M 325. Prior to approval and use of fibers, the Contractor shall submit a notarized certification by the producer of these materials stating they meet these requirements. Reclaimed Asphalt Shingles (RAS) may be used in Stone Matrix Asphalt (SMA) mixtures designed with an SBA polymer modifier as a fiber additive if the mix design with RAS included meets AASHTO T305 requirements. The RAS shall be from a certified source that produces either Type I or Type 2. Material shall meet requirements noted herein and the actual dosage rate will be determined by the Engineer.

Note 6. The asphalt binder shall be an SBS PG 76-28 when the SMA is used on a full-depth asphalt pavement and SBS PG 76-22 when used as an overlay, except where modified herein. The asphalt binder shall be a SBS PG 76-22 for IL-4.75, except where modified herein..”

Project 50B4(000) McHenry County

Contract 61L85

Revise table in Article 1030.05(a) of the Standard Specifications to read:

“MIXTURE COMPOSITION (% PASSING) 1/

Sieve Size

IL-19.0 mm SMA 12.5 SMA 9.5 IL-9.5mm IL-9.5FG IL-4.75 mm min max min max min max min max min max min max

1 1/2 in (37.5 mm)

1 in.

(25 mm) 100

3/4 in.

(19 mm) 90 100 100

1/2 in.

(12.5 mm) 75 89 80 100 100 100 100 100

3/8 in.

(9.5 mm) 65 90 100 90 100 90 100 100

#4 (4.75 mm) 40 60 20 30 36 50 34 69 60 756/ 90 100

#8 (2.36 mm) 20 42 16 24 4/ 16 324/ 34 5/ 52 2/ 45 606/ 70 90

#16 (1.18 mm) 15 30 10 32 25 40 50 65

#30 (600 m) 12 16 12 18 15 30

#50 (300 m) 6 15 4 15 8 15 15 30

#100 (150 m) 4 9 3 10 6 10 10 18

#200 (75 m) 3.0 6.0 7.0 9.0 3/ 7.5 9.5 3/ 4.0 6.0 4.0 6.5 7.0 9.0 3/

#635 (20 m) ≤ 3.0 ≤ 3.0

Ratio Dust/Asphalt Binder 1.0 1.5 1.5 1.0 1.0 1.0

1/ Based on percent of total aggregate weight.

2/ The mixture composition shall not exceed 44 percent passing the #8 (2.36 mm) sieve for surface courses with Ndesign = 90.

3/ Additional minus No. 200 (0.075 mm) material required by the mix design shall be mineral filler, unless otherwise approved by the Engineer.

4/ When establishing the Adjusted Job Mix Formula (AJMF) the percent passing the

#8 (2.36 mm) sieve shall not be adjusted above the percentage stated on the table.

5/ When establishing the Adjusted Job Mix Formula (AJMF) the percent passing the #8 (2.36 mm) sieve shall not be adjusted below 34 percent.

Project 50B4(000) McHenry County

Contract 61L85

6/ When the mixture is used as a binder, the maximum shall be increased by 0.5 percent passing.”

Revise Article 1030.05(b) of the Standard Specifications to read:

(b) Volumetric Requirements. The target value for the air voids of the HMA shall be 4.0 percent, for IL-4.75 and SMA mixtures it shall be 3.5 percent and for Stabilized Subbase it shall be

3.0 percent at the design number of gyrations. The voids in the mineral aggregate (VMA) and voids filled with asphalt binder (VFA) of the HMA design shall be based on the nominal maximum size of the aggregate in the mix and shall conform to the following requirements.

Voids in the Mineral Aggregate (VMA), % Minimum for Ndesign

Mix Design 30 50 70 80 90

IL-19.0 13.5 13.5 13.5

IL-9.5 15.0 15.0

IL-9.5FG 15.0 15.0

IL-4.751/ 18.5

SMA-12.51/2/5/ 17.03//16.04/

SMA-9.51/2/5/ 17.03//16.04/

IL-19.0L 13.5

IL-9.5L 15.0

1/ Maximum draindown shall be 0.3 percent according to Illinois Modified

AASHTO T 305.

2/ The draindown shall be determined at the JMF asphalt binder content at the mixing temperature plus 30°F.

3/ Applies when specific gravity of coarse aggregate is ≥ 2.760.

4/ Applies when specific gravity of coarse aggregate is < 2.760.

5/ For surface course, the coarse aggregate can be crushed steel slag, crystalline crushed stone or crushed sandstone. For binder course, coarse aggregate shall be crushed stone (dolomite), crushed gravel, crystalline crushed stone, or crushed sandstone”

Revise the last paragraph of Article 1102.01 (a) (5) of the Standard Specifications to read:

“IL-4.75 and Stone Matrix Asphalt (SMA) mixtures which contain aggregate having absorptions greater than or equal to 2.0 percent, or which contain steal slag sand, shall have minimum surge bin storage plus haul time of 1.5 hours.”

Project 50B4(000) McHenry County

Contract 61L85

Revise the first and second paragraphs of Articles 1030.06(c)(2) of the Standard Specifications to read:

“(2) Personnel. The Contractor shall provide a QC Manager who shall have overall responsibility and authority for quality control. This individual shall maintain active certification as a Hot-Mix Asphalt Level II technician.

In addition to the QC Manager, the Contractor shall provide sufficient personnel to perform the required visual inspections, sampling, testing, and documentation in a timely manner. Mix designs shall be developed by personnel with an active certification as a Hot-Mix Asphalt Level III technician. Technicians performing mix design testing and plant sampling/testing shall maintain active certification as a Hot-Mix Asphalt Level I technician. The Contractor may provide a technician trainee who has successfully completed the Department’s “Hot-Mix Asphalt Trainee Course” to assist in the activities completed by a Hot-Mix Asphalt Level I technician for a period of one year after the course completion date. The Contractor may also provide a Gradation Technician who has successfully completed the Department's "Gradation Technician Course" to run gradation tests only under the supervision of a Hot-Mix Asphalt Level II Technician. The Contractor shall provide a Hot-Mix Asphalt Density Tester who has successfully completed the Department's "Nuclear Density Testing” course to run all nuclear density tests on the job site.”

Add Article 1030.06(d)(3) to the Standard Specifications to read:

“(3) The Contractor shall take possession of any Department unused backup or dispute resolution HMA mixture samples or density specimens upon notification by the Engineer.

The Contractor shall collect the HMA mixture samples or density specimens from the location designated by the Engineer and may add these materials to RAP stockpiles according to Section 1031.”

Revise the second paragraph of Articles 1030.07(a)(11) and 1030.08(a)(9) of the Standard Specifications to read:

“When establishing the target density, the HMA maximum theoretical specific gravity (Gmm) will be based on the running average of four available Department test results for that project. If less than four Gmm test results are available, an average of all available Department test results for that project will be used. The initial Gmm will be the last available Department test result from a QMP project. If there is no available Department test result from a QMP project, the Department mix design verification test result will be used as the initial Gmm.”

Revise the Quality Control Limits table in Article 1030.09(c) to read:

CONTROL LIMITS

Parameter

IL-19.0, IL-9.5,

IL-9.5FG, IL-19.0L,

IL-9.5L

SMA-12.5,

SMA-9.5

IL-4.75

Project 50B4(000) McHenry County

Contract 61L85

Individual Test

Moving Avg. of 4

Individual Test

Moving Avg. of 4

Individual Test

Moving Avg. of 4

% Passing: 1/

1/2 in. (12.5 mm) ± 6 % ± 4 % ± 6 % ± 4 % 3/8 in. (9.5mm) ± 4 % ± 3 % # 4 (4.75 mm) ± 5 % ± 4 % ± 5 % ± 4 % # 8 (2.36 mm) ± 5 % ± 3 % ± 4 % ± 2 % # 16 (1.18 mm) ± 4 % ± 2 % ± 4 % ± 3 % # 30 (600 µm) ± 4 % ± 2.5 % ± 4 % ± 2.5 % Total Dust Content # 200 (75 µm) ± 1.5 % ± 1.0 % ± 1.5 % ± 1.0 %

Asphalt Binder Content ± 0.3 % ± 0.2 % ± 0.2 % ± 0.1 % ± 0.3 % ± 0.2 %

Air Voids 2/ ± 1.2 % ± 1.0 % ± 1.2 % ± 1.0 % ± 1.2 % ± 1.0 % Field VMA 3/ -0.7 % -0.5 % -0.7 % -0.5 % -0.7 % -0.5 %

1/ Based on washed ignition oven or solvent extraction gradation.

2/ The air voids target shall be 3.2 to 4.8 percent.

3/ Allowable limit below minimum design VMA requirement.

Revise Article 1030.09(g)(1) of the Supplemental Specifications with the following:

“(1) The Contractor shall sample approximately 200 lb (91 kg) of mix as required for the Department’s random mixture verification tests according to Article 1030.09(h)(1).”

Revise Article 1030.09(g)(2) of the Standard Specifications to read:

“(2) The Contractor shall complete split verification sample tests listed in the Limits of Precision table in Article 1030.09(h)(1).”

Revise the second sentence of Article 1030.09(h)(1) of the Supplemental Specifications with the following:

“The random verification mixture sampling interval will be a maximum of 3,000 tons (2,720 metric tons). The Engineer will randomly identify one sample per interval, with a minimum of one sample per mix. If the remaining mix quantity is 600 tons (544 metric tons) or less, the quantity will be combined with the previous interval in the Engineer’s random sample identification. If the required tonnage of a mixture for a single pay item is less than 250 tons (225 metric tons) in total, the Engineer will waive mixture verification sampling and testing.”

Revise the third paragraph of Article 1030.09(h)(1) of the Standard Specifications to read:

“If comparisons of the mixture verification test results are outside the above limits of precision, the Department will verify the results by testing the retained split sample.

Project 50B4(000) McHenry County

Contract 61L85

The retest results will replace all the original results.”

In the Supplemental Specifications, replace the revision for the end of the third paragraph of Article 1030.09(h)(2) with the following:

“When establishing the target density, the HMA maximum theoretical specific gravity (Gmm) will be the Department mix design verification test result.”

Add after third sentence of Article 1030.09(b) to read:

“ If the Contractor and Engineer agree the nuclear density test method is not appropriate for the mixture, cores shall be taken at random locations determined according to the QC/QA document "Determination of Random Density Test Site Locations".