Letting September 18, 2026

Notice to Bidders, Specifications and Proposal

Contract No. 61M58 COOK County Section 19-00037-02-BT Route DES PLAINES RIVER TRAIL (Segment 7) Project 1SPT-933 () 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. 61M58 COOK County Section 19-00037-02-BT Project 1SPT-933 () Route DES PLAINES RIVER TRAIL (Segment 7) District 1 Construction Funds

Construction of a shared-use path from Strieby Drive to Fullerton Avenue in the River Grove Forest Protection District. Includes aggregate and HMA, precast concrete boardwalk, sidewalk, and traffic signal modernization.

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 61M58

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

SPECIAL PROVISIONS

TABLE OF CONTENTS

SPECIAL PROVISIONS

LOCATION OF IMPROVEMENT

DESCRIPTION OF IMPROVEMENT

AVAILABLE REPORTS

CONSTRUCTION STAGING THROUGH THE FOREST PRESERVE

COMPLETION DATE PLUS WORKING DAYS (D1)

REMOVAL AND DISPOSAL OF REGULATED SUBSTANCES (PROJECT SPECIFIC)

KEEPING ARTERIAL ROADWAYS OPEN TO TRAFFIC (LANE CLOSURES ONLY)

PUBLIC CONVENIENCE AND SAFETY (D1)

TEMPORARY INFORMATION SIGNING

TRAFFIC CONTROL PLAN (D1)

TRAFFIC CONTROL AND PROTECTION (ARTERIALS) (D1)

STATUS OF UTILITIES (D-1)

BOLLARD REMOVAL

AGGREGATE SURFACE COURSE, TYPE B 3” (SPECIAL)

SAFETY FENCE

SUBBASE GRANULAR MATERIAL, TYPE B 6”

STUMP REMOVAL ONLY

TREE ROOT PRESERVATION

TREE ROOT PRUNING (SPECIAL)

ENGINEERED BARRIER

TREE REMOVAL AND PRUNING

UNAUTHORIZED TREE REMOVAL

PROTECTION OF EXISTING TREES

MOWING

DEBRIS REMOVAL

CLEARING (SPECIAL)

SOIL AERATION

PERIMETER EROSION BARRIER, ROLLED EXCELSIOR

TEMPORARY ACCESS ROAD

WASHOUT BASIN

PERIMETER EROSION BARRIER (SPECIAL)

STABILIZED CONSTRUCTION ENTRANCE

HIGH VISIBILITY TEMPORARY FENCING

APPROACH SLAB REMOVAL

BOARDWALK STRUCTURE

SANDBLASTING CONCRETE

STEEL RAILING REMOVAL

CONCRETE GUTTER (SPECIAL)

RELOCATE SIGN, SPECIAL

TRAFFIC SIGNAL GENERAL REQUIREMENTS

RE-OPTIMIZE TRAFFIC SIGNAL SYSTEM

UNDERGROUND RACEWAYS

ELECTRIC CABLE

PEDESTRIAN SIGNAL POST

CONCRETE FOUNDATIONS

LIGHT EMITTING DIODE (LED) SIGNAL HEAD AND OPTICALLY PROGRAMMED LED SIGNAL HEAD

LED SIGNAL FACE, LENS COVER

LIGHT EMITTING DIODE (LED) PEDESTRIAN SIGNAL HEAD

TRAFFIC SIGNAL BACKPLATE

ACCESSIBLE PEDESTRIAN SIGNALS

REMOVE EXISTING TRAFFIC SIGNAL EQUIPMENT

Des Plaines River Trail Segment 7 Reconstruction Forest Preserve District of Cook County

Contract No. 61M58 Section No. 19-00037-02-BT

Cook County ii

REBUILD EXISTING HANDHOLE

CABLE REMOVAL FROM CONDUIT

MODIFY EXISTING CONTROLLER

MODIFY EXISTING CONTROLLER CABINET

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

HOT-MIX ASPHALT BINDER AND SURFACE COURSE (D1)

FRICTION AGGREGATE (D1)

MINERALIZED CARBON DIOXIDE CONCRETE (D-1)

IDOT TRAINING PROGRAM GRADUATE ON-THE-JOB TRAINING SPECIAL PROVISION (TPG)

LR 107-4………………………………………………………………………………………………..……..….. 112

LR 1030-2…………………………………………………………………………………………………...…

SWPPP…………………………………………………………………………………………………..……..….115

INDR-OWR PERMIT ………………………………………………………………………………………..……129

USACE PERMIT ……………………..…………………………………………………………………………..132

MWRD WMO PERMIT……………………………………………………..………………….…………………135

IEPA LPC 663……………………………………………………………………………………..………….…...161

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 163 Aggregate Subgrade Improvement April 1, 2012 April 1, 2022 80192 Automated Flagger Assistance Device Jan. 1, 2008 April 1, 2023 80173 166 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 168 Cement, Finely Divided Minerals, Admixtures, Concrete, and Mortar Jan. 1, 2025 Jan. 1, 2026 80384 185 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 Concrete Sealer Nov. 1, 2023 80261 189 Construction Air Quality – Diesel Retrofit June 1, 2010 Jan. 1, 2025 80476 Deck Slab Repair Jan. 1, 2026

* 80029 191 Disadvantaged Business Enterprise Participation Sept. 1, 2000 July 2, 2026 80467 195 Erosion Control Blanket Aug. 1, 2025 80229 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 Guardrail Nov. 1, 2025 80472 High Friction Surface Treatment Nov. 1, 2025 80456 Hot-Mix Asphalt Jan. 1, 2024 April 1, 2026 80446 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 198 Inlet Filters April 1, 2026

* 80477 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 200 Pavement Marking April 1, 2025 Nov. 1, 2025 80468 Pavement Patching Aug. 1, 2025 80441 201 Performance Graded Asphalt Binder Jan 1, 2023 April 1, 2026 80459 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 207 Removal and Disposal of Regulated Substances Jan. 1, 2024 April 1, 2026 80474 Residential Driveway Temporary Signal Nov. 1, 2025

* 80445 209 Seeding Nov. 1, 2022 July 1, 2026 80457 Short Term and Temporary Pavement Markings April 1, 2024 April 2, 2024 80462 215 Sign Panels and Appurtenances Jan. 1, 2025 Jan. 1, 2026 80479 Sinusoidal Rumble Strips Jan. 1, 2026 80469 Slope Wall Aug. 1, 2025 80448 217 Source of Supply and Quality Requirements Jan. 2, 2023 Jan. 1, 2026 80340 Speed Display Trailer April 2, 2014 Jan. 1, 2022 80127 Steel Cost Adjustment April 2, 2004 Nov. 1, 2025 80480 219 Structural Repair of Concrete Jan. 1, 2026 80397 226 Subcontractor and DBE Payment Reporting April 2, 2018 80391 227 Subcontractor Mobilization Payments Nov. 2, 2017 April 1, 2019 80463 228 Submission of Bidders List Information Jan. 2, 2025 Mar. 2, 2025

File Name Pg. Special Provision Title Effective Revised 80482 229 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 231 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 232 Training Special Provisions Oct. 15, 1975 Sept. 2, 2021 80429 Ultra-Thin Bonded Wearing Course April 1, 2020 Jan. 1, 2022 80439 235 Vehicle and Equipment Warning Lights Nov. 1, 2021 Nov. 1, 2022 80458 Waterproofing Membrane System Aug. 1, 2024 80302 236 Weekly DBE Trucking Reports June 2, 2012 Jan. 2, 2025 80454 Wood Sign Support Nov. 1, 2023 80427 237 Work Zone Traffic Control Devices Mar. 2, 2020 Jan. 1, 2026

* 80485 240 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 GBSP 78 Bridge Deck Construction Oct 22, 2013 Dec 21, 2016 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 241 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 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 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

Contract No. 61M58 Section No. 19-00037-02-BT

STATE OF ILLINOIS

SPECIAL PROVISIONS

The following Special Provisions supplement the specifications listed in the table below which apply to and govern the proposed improvement designated as Section 19-00037-02-BT, Contract Number 61M58 and in case of conflict with any part or parts of said specifications, the said Special Provisions shall take precedence and govern.

SPECIFICATION ADOPTED/DATED

Standard Specifications for Road and Bridge Construction

January 1, 2022

Manual on Uniform Traffic Control Devices for Streets and Highways

11th Edition with Revision 1/December 2025

Illinois Manual on Uniform Traffic Control Devices for Streets and Highways" (ILMUTCD)

Current Edition

Supplemental Specifications and Recurring Special Provisions (indicated on the Check Sheet included herein)

January 1, 2026

Manual of Test Procedure of Materials

Current

Standard Specifications for Water & Sewer Main Construction in Illinois

8th Edition, 2020

LOCATION OF IMPROVEMENT

Segment 7 of the Des Plaines River Trail is located in the Village of River Grove, Cook County. The improvement on the Des Plaines River Trail begins at Strieby Drive and ends at Fullerton Avenue. The total gross and net length is 6,661 feet (1.26 miles).

DESCRIPTION OF IMPROVEMENT

The work consists of the construction of an aggregate shared-use path, HMA shared-use path, precast concrete boardwalk, portland cement concrete sidewalk, earth excavation, portland cement concrete curb, seeding, topsoil, landscaping, traffic signal modernization as well as all incidental and collateral work necessary to complete the project as shown on the plans and as described herein.

Contract No. 61M58 Section No. 19-00037-02-BT

AVAILABLE REPORTS

☐ 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 (IDOT PSI)

☒ Preliminary Environmental Site Assessment (IDOT PESA)

☒ Preliminary Site Investigation (PSI) – Local

☒ Preliminary Environmental Site Assessment (PESA) – Local

☒ Soils/Geotechnical Report

☒ Boring Logs

☐ Pavement Cores

☐ Location Drainage Study (LDS)

☐ Hydraulic Report

☐ Noise Analysis

☒ Other: FPDCC Tree Protection and Preservation

Manualhttps://fpdcc.com/wp-content/uploads/2020/11/FPCC-Tree-Protection-Preservation- Manual-110920.pdf

Tree Mitigation Plan:

https://fpdcc.com/wp-content/uploads/2020/11/FPCC-Tree-Mitigation-Plan-111320.pdf

Those seeking these reports should request access from:

Mark B. Thomas, PE Christopher B. Burke Engineering, Ltd.

9575 W. Higgins Road, Suite 600 Rosemont, IL 60018

(847) 823-0500 mthomas@cbbel.com

Contract No. 61M58 Section No. 19-00037-02-BT

CONSTRUCTION STAGING THROUGH THE FOREST PRESERVE

The Contractor shall Stage construction of the path through the Forest Preserve as defined in the CONSTRUCTION STAGING DETAIL sheet in the plans. Perimeter erosion barrier will be installed per plan and vehicles, equipment, or materials shall not be allowed outside of the work zone defined by the perimeter erosion barrier. The Contractor shall inform all crews daily of this requirement.

In Stage 3, the perimeter erosion barrier can be removed after temporary seeding and temporary erosion control blanket has been installed.

The final topsoil will be placed in Stage 4 using the aggregate base course placed in Stage 2 as a working platform. The final aggregate surface will be constructed after the final topsoil has been placed. Vehicles, equipment, or materials shall not be allowed beyond the final limits of construction. Should the Contractor violate this requirement as determined by the Forest Preserve District of Cook County (FPDCC) with evidence of vehicles, equipment, or materials having been outside of the final construction limits, the Contractor shall be liable for an immediate monetary deduction per art 105.03a with a base value of $1,000, which will be valued at one calendar day of “Intrusion into Protected Resource” multiplied by a Gravity Adjustment Factor.

Areas that could be used by the Contractor as turnaround locations must be approved by the FPDCC representative before any disturbance beyond the proposed perimeter erosion barrier can commence. If the Contractor desires to utilize these areas, the ground beyond the limits of the proposed perimeter erosion barrier will be protected by geotextile fabric covered by 4” of mulch and a timber mat cabled together. The turnaround area will be surrounded by perimeter erosion barrier, and high visibility temporary fence. Once work is completed, all items identified here will be removed and the area will be seeded. This work will not be paid for separately but will be included in the cost of the adjacent path pay items.

Contract No. 61M58 Section No. 19-00037-02-BT

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 31, 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.

Contract No. 61M58 Section No. 19-00037-02-BT

REMOVAL AND DISPOSAL OF REGULATED SUBSTANCES (project specific)

Description. This work shall consist of the removal and disposal of regulated substances according to Section 669 of the Standard Specifications as revised below.

Contract Specific Sites. The excavated soil and groundwater within the areas listed below shall be managed as either “uncontaminated soil”, hazardous waste, special waste or non-special waste. For stationing, the lateral distance is measured from centerline and the farthest distance is the offset distance or construction limit, whichever is less.

Soil Disposal Analysis. When the waste material requires sampling for landfill disposal acceptance, the Contractor shall secure a written list of the specific analytical parameters and analytical methods required by the landfill. The Contractor shall collect and analyze the required number of samples for the parameters required by the landfill using the appropriate analytical procedures. A copy of the required parameters and analytical methods (from landfill email or on landfill letterhead) shall be provided as Attachment 4A of the BDE 2733 (Regulated Substances Final Construction Report). The price shall include all sampling materials and effort necessary for collection and management of the samples, including transportation of samples from the job site to the laboratory. The Contractor shall be responsible for determining the specific disposal facilities to be utilized; and collect and analyze any samples required for disposal facility acceptance using a NELAP certified analytical laboratory registered with the State of Illinois.

Site 4168V-43: Cook County Forest Preserve, 2100 block of N. 1st Avenue, River Grove, Cook County

• Station 752+10 to Station 752+50 (Proposed Des Plaines River Trail), 0 to 15 feet RT and 0 to 15 feet LT. The Engineer has determined this material meets the criteria of and shall be managed in accordance with Article 669.05(a)(1). Contaminants of concern sampling parameters: VOCs, SVOCs and Metals.

Site 4168V-44: Cook County Forest Preserve, 1800-2100 blocks of N.Thatcher Avenue, River Grove, Cook County

• Station 751+25 to Station 751+60 (Proposed Des Plaines River Trail), 0 to 15 feet RT and 0 to 15 feet LT. The Engineer has determined this material meets the criteria of and shall be

Site 4168V-45: The Lock Up, 1820 N. 1st Avenue, River Grove, Cook County

• Station 9+95 to Station 10+15 (Proposed Strieby Drive Connection), 50 to 85 feet LT. The Engineer has determined this material meets the criteria of and shall be managed in accordance with Article 669.05(a)(1). Contaminants of concern sampling parameters: VOCs, SVOCs and Metals.

Site 4168V-46: Costco, 8400 W. North Avenue, Melrose Park, Cook County

• Station 9+95 to Station 10+15 (Proposed Strieby Drive Connection), 0 to 50 feet LT and 0 to 15 feet RT. The Engineer has determined this material meets the criteria of and shall be managed in accordance with Article 669.05(a)(5). Contaminants of concern sampling

Contract No. 61M58 Section No. 19-00037-02-BT

Site 4168V-47: Cook County Forest Preserve, 8200-8300 blocks of W. North Avenue, River Grove, Cook County

• Station 10+90 to Station 11+05 (Proposed Strieby Drive Connection), 0 to 15 feet LT and 0 to 15 feet RT. The Engineer has determined this material meets the criteria of and shall be managed in accordance with Article 669.05(a)(1). Contaminants of concern sampling parameters: VOCs, SVOCs and Metals.

• Station 701+10 to Station 701+85 (Proposed Des Plaines River Trail), 0 to 15 feet LT and 0 to 15 feet RT. The Engineer has determined this material meets the criteria of and shall be

Site 4168V-48: Menards Self Storage, 8311 W. North Avenue, Melrose Park, Cook County

• Station 699+80 to Station 700+40 (Proposed Des Plaines River Trail), 0 to 110 feet LT and 0 to 35 feet RT. The Engineer has determined this material meets the criteria of and shall be managed in accordance with Article 669.05(a)(5). Contaminants of concern sampling

Work Zones Three distinct OSHA HAZWOPER work zones (exclusion, decontamination, and support) shall apply to projects adjacent to or within sites with documented leaking underground storage tank (LUST) incidents, or sites under management in accordance with the requirements of the Site Remediation Program (SRP), Resource Conservation and Recovery Act (RCRA), or Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), or as deemed necessary. For this project, the work zones apply for the following ISGS PESA Sites: None

Contract No. 61M58 Section No. 19-00037-02-BT

KEEPING ARTERIAL ROADWAYS OPEN TO TRAFFIC (LANE CLOSURES ONLY)

Effective: January 22, 2003 Revised: August 10, 2017

The Contractor shall provide the necessary traffic control devices to warn the public and to delineate the work zone as required in these Special Provisions, the Standard Specifications, the State Standards, and the District Details.

Arterial lane closures shall be in accordance with the Standard Specifications, Highway Standards, District Details, and the direction of the Engineer. The Contractor shall request and gain approval from the Engineer seventy–two (72) hours in advance of all long-term (24 hrs. or longer) lane closures.

Arterial lane closures not shown in the staging plans will not be permitted during peak traffic volume hours.

Peak traffic volume hours are defined as weekdays (Monday through Friday) from 6:00 AM to 8:30 AM and 4:30 PM to 6:00 PM.

Private vehicles shall not be parked in the work zone. Contractor’s equipment and/or vehicles shall not be parked on the shoulders or in the median during non-working hours.

The parking of equipment and/or vehicles on State right-of-way will only be permitted at locations approved by the Engineer in accordance with Articles 701.08 and 701.11 of the Standard Specifications.

Should the Contractor fail to completely open and keep open all the traffic lanes to traffic in accordance with the limitations specified above, the Contractor shall be liable to the Department for the amount of:

One lane or ramp blocked = $1,000

Two lanes blocked = $2,500

Not as a penalty but as liquidated and ascertained damages for each and every 15 minute interval or a portion thereof that a lane is blocked outside the allowable time limitations.

Such damages may be deducted by the Department from any monies due the Contractor.

These damages shall apply during the contract time and during any extensions of the contract time.

Contract No. 61M58 Section No. 19-00037-02-BT

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.”

Contract No. 61M58 Section No. 19-00037-02-BT

TEMPORARY INFORMATION SIGNING

Effective: November 13, 1996 Revised: January 29, 2020

Description.

This work shall consist of furnishing, installing, maintaining, relocating for various states of construction and eventually removing temporary informational signs. Included in this item may be ground mount signs, skid mount signs, truss mount signs, bridge mount signs, and overlay sign panels which cover portions of existing signs.

Materials.

Materials shall be according to the following Articles of Section 1000 - Materials:

Item Article/Section a.) Sign Base (Note 1) 1090 b.) Sign Face (Note 2) 1091 c.) Sign Legends 1091 d.) Sign Supports 1093 e.) Overlay Panels (Note 3) 1090.02

Note 1. The Contractor may use 5/8 inch (16 mm) instead of 3/4 inch (19 mm) thick plywood.

Note 2. The sign face material shall be in accordance with the Department’s

Fabrication of Highway Signs Policy.

Note 3. The overlay panels shall be 0.08 inch (2 mm) thick.

GENERAL CONSTRUCTION REQUIREMENTS

Installation.

The sign sizes and legend sizes shall be verified by the Contractor prior to fabrication.

Signs which are placed along the roadway and/or within the construction zone shall be installed according to the requirements of Article 701.14 and Article 720.04. The signs shall be 7 ft (2.1 m) above the near edge of the pavement and shall be a minimum of 2 ft (600

mm) beyond the edge of the paved shoulder. A minimum of two (2) posts shall be used.

The attachment of temporary signs to existing bridges, sign structures or sign panels shall be approved by the Engineer. Any damage to the existing signs and/or structures due to the Contractor's operations shall be repaired or signs replaced, as determined by the Engineer, at the Contractor's expense.

Method of Measurement.

This work shall be measured for payment in square feet (square meters) edge to edge (horizontally and vertically).

All hardware, posts or skids, supports, bases for ground mounted signs, connections, which are required for mounting these signs will be included as part of this pay item.

Contract No. 61M58 Section No. 19-00037-02-BT

Basis Of Payment.

This work shall be paid for at the contract unit price per square foot (square meter) for

TEMPORARY INFORMATION SIGNING.

Contract No. 61M58 Section No. 19-00037-02-BT

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: 701006-05, 701101-05, 701301-04, 701311-03, 701426-09, 701427-05,

701606-10, 701701-10, 701801-06, 701901-11

DETAILS:

TC-13 DISTRICT ONE TYPICAL PAVEMENT MARKINGS

TC-22 ARTERIAL ROAD INFORMATION SIGN

SPECIAL PROVISIONS:

KEEPING ARTERIAL ROADWAYS OPEN TO TRAFFIC (LANE CLOSURES ONLY)

PUBLIC CONVENIENCE AND SAFETY (D1)

TEMPORARY INFORMATION SIGNING (D1)

WORK ZONE TRAFFIC CONTROL DEVICES (BDE)

VEHICLE AND EQUIPMENT WARNING LIGHTS (BDE)

WORK ZONE WIDTH RESTRICTION (BDE)

Contract No. 61M58 Section No. 19-00037-02-BT

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.

Contract No. 61M58 Section No. 19-00037-02-BT

STATUS OF UTILITIES (D-1)

Effective: June 1, 2016 Revised: April 1, 2025

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

No conflicts to be resolved

Stage 1

No conflicts to be resolved

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

AT&T Tom Laskowski 630-573-5643 tl7895@att.com

Comcast Ted Wyman 224-229-5850 Ted_Wyman@comcast.com

ComEd Christian Chajon

MWRD Frederick Wu 312-751-4025 wuf@mwrd.org

Nicor Karey Johnson 630-388-2923 karejohn@southernco.com

Village of River Grove

Bill Pazdzioch bpazdzioch@rivergroveil.gov

Sprint (Cogent) Jason Jarvis 219-491-5880 jjarvis@cogentco.com

Contract No. 61M58 Section No. 19-00037-02-BT

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.

Stage 1

STAGE / LOCATION TYPE DESCRIPTION OWNER

10+02 (northwest corner of Strieby Drive and First Avenue)

Underground gas main

The Contractor shall use caution when working over or along side any

Nicor gas main.

Nicor

719+37 Underground

Tunnel

The Contractor shall work with MWRD stall to physically locate

MWRD facilities in the field to avoid any negative impacts from heavy construction. MWRD personnel shall have unrestricted access 24 hours a day to all MWRD facilities. For any questions regarding access to our facility or field location, please contact Mr. Paul Sobanski, at telephone (708)

588-4080.

MWRD

724+23, 70+60 5’-6”x6’-10.5” underground sewer

The Contractor shall work with MWRD stall to physically locate

MWRD facilities in the field to avoid any negative impacts from heavy construction. MWRD personnel shall have unrestricted access 24 hours a day to all MWRD facilities. For any questions regarding access to our facility or field location, please contact Mr. Paul Sobanski, at telephone (708)

588-4080.

MWRD

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

Nicor Karey Johnson 630-388-2923 karejohn@southernco.com

Contract No. 61M58 Section No. 19-00037-02-BT

MWRD Frederick Wu 312-751-4025 wuf@mwrd.org

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.

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

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.

Contract No. 61M58 Section No. 19-00037-02-BT

BOLLARD REMOVAL

Description. This work consists of removing and disposing of existing concrete bollards.

This work shall include all materials, labor, and equipment to remove the bollards. The bollards shall be fully removed, including any portion of the bollard below the ground surface.

Method of Measurement. This work will be measured per each concrete bollard removed.

Basis of Payment.

This work will be paid for at the contract unit price per each for BOLLARD REMOVAL.

Contract No. 61M58 Section No. 19-00037-02-BT

AGGREGATE SURFACE COURSE, TYPE B 3” (SPECIAL)

General: This work shall consist of all materials, tools, equipment, and labor necessary to provide a trail surface, suitable for multiple uses. This work shall consist of surfacing new trails or refurbishing the surfaces of existing trails that may be damaged during the course of construction, by furnishing, placing, shaping, and compacting limestone screenings, conforming to the applicable Articles of Section 402 of the Illinois Department of Transportation Standard Specifications for Road and Bridge Construction. Exceptions are that the additions of moisture at the point of production of the aggregate surface may be required to obtain maximum density of the aggregate surface. This shall be at the direction of the Owner’s Project Representative. The Limestone Trail Screenings shall be compacted as required by the Owner’s Project Representative. No extra payment shall be due the Contractor for complying with the aforementioned requirements.

Materials: The crushed limestone screenings shall conform to IDOT gradation FA-21 and meet requirements of section 1003 of the Standard Specifications.

Construction Requirements: Before the aggregate surface is placed on the trail, any ruts, caked earth, or other undesirable surface matter will be removed with the blade of a motor grader. Before the aggregate surface is deposited on the prepared trail, it shall contain sufficient moisture to provide satisfactory compaction. The aggregate surface shall be placed with a spreading and finishing machine meeting the requirements of Section

1102.03. The aggregate surface shall be compacted with a roller to the specified thickness, to the satisfaction of the Owner’s Project Representative. If the moisture content of the material is not such as to permit satisfactory compaction, water shall be added in such a quantity so that satisfactory compaction can be obtained. If any subgrade material is worked into the surface aggregate during the finishing operation, all granular material within the affected areas shall be removed and replaced with new aggregate. The limestone screenings shall be placed to the depth and design grade shown on the Plans and sloped at a cross slope meeting ADA requirements and providing positive drainage.

Method of Measurement and Payment: This work shall be measured for payment in square yards and paid for at the contract unit price per SQUARE YARDS for AGGREGATE SURFACE COURSE, TYPE B 3” (SPECIAL), for material satisfactorily installed and accepted, which price shall include trail preparation and furnishing, placing, shaping and compacting the aggregate surface. Water required to be added for compaction will not be measured for payment but shall be considered included in the cost of the item of work being constructed. In the case that additional repair is needed for the trail base, AGGREGATE BASE COURSE, TYPE B shall be paid for separately.

Contract No. 61M58 Section No. 19-00037-02-BT

SAFETY FENCE

Description. This work shall consist of constructing a SAFETY FENCE in accordance with applicable portions of Sections 507 and 641, as detailed in the plans, as directed by the Engineer, and as specified herein.

Materials. The posts and rails shall comply with the requirements of Section 1007 for No. 1 Dense SR 1550 F for southern pine or No. 1 Dense 1400 F for Douglas fir. All lumber shall be sound and free from excessive splitting or deterioration. Dimensions shown on the plans are surfaced (S4S) lumber. All wood shall be pressure treated in accordance with Section 1007.12

Hardware shall include all necessary fasteners and appurtenances for construction of the fence and shall be according to Article 1006.17.

Construction Requirements. Wood fence construction shall conform to the applicable portions of Sections 507 and 641. The backfill for the posts shall be CA 6, CA 10, or CA 12 aggregate according to Article 1004.01. Backfill shall be thoroughly compacted, meeting the approval of the Engineer.

Method of Measurement. The safety fence will be measured for payment along the top of the fence from center to center of end posts.

Basis of Payment. This work will be measured and paid for at the contract unit price per linear foot for SAFETY FENCE, which price shall be payment in full for all material, labor and any other items required to complete the work.

Contract No. 61M58 Section No. 19-00037-02-BT

SUBBASE GRANULAR MATERIAL, TYPE B 6”

Description. This work shall consist of constructing a subbase granular material.

Materials. Material shall satisfy the requirements of Section 1004 of the Standard Specifications. Gradation number CA 1 shall be used.

Finishing and Maintenance of Subbase Granular Material. The subbase granular material shall be finished to the lines, grades, and cross sections shown on the plans, or as directed by the Engineer. The subbase aggregate material shall be maintained in a smooth and compacted condition.

Method of Measurement. This work will be measured for payment according to Article 311.08.

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

SUBBASE GRANULAR MATERIAL, TYPE B 6”.

Add the following to Section 1004 of the Standard Specifications:

1004.07 Coarse Aggregate for Subbase Granular Material, Type B 6”. The aggregate shall be according to Article 1004.01 and the following.

(a) Description. The coarse aggregate shall be crushed gravel, crushed stone, or crushed concrete.

(b) Quality. The coarse aggregate shall consist of sound durable particles reasonably free of deleterious materials. Non-mechanically blended RAP may be allowed up to a maximum of 5.0 percent.

Contract No. 61M58 Section No. 19-00037-02-BT

STUMP REMOVAL ONLY

Description. This item shall consist of the removal and disposal of existing stumps.

Requirements. All stumps marked for removal by the Engineer shall be removed to a depth of not less than 12 inches below the elevation of the subgrade, the finished earth surface, or the ground line except for stump removal within no-excavation zones. Within no-excavation zones, stumps designated for removal shall be cut flush with the existing ground. Removed stumps shall be disposed of in accordance with Article 202.03 of the Standard Specifications.

Method of Measurement. This work will be measured for payment in units as defined in Article

201.10 (b) (1) of the Standard Specifications.

Basis of Payment. This item will be paid for at the contract unit price per unit for STUMP

REMOVAL ONLY.

Contract No. 61M58 Section No. 19-00037-02-BT

TREE ROOT PRESERVATION

Description. This work shall consist of performing supersonic air excavation, examination and selective pruning of root structure, furnishing and placing CA-7, furnishing and placing root aeration matting, and furnishing and placing turf nails.

Work shall be performed by a qualified contractor who has three (3) years of experience performing supersonic air excavation and installing root aeration matting.

All Engineered Barrier work must be done under the direction of a certified arborist with three

(3) years of experience with tree root protection projects.

Materials. CA-7 A sample with an indicated source must be supplied to the Engineer for approval prior to its installation. This material shall conform to the standards established in Article 1004.01 of the Standard Specifications, except that the word “limestone” shall be deleted from the first sentence of the (4) Crushed Stone paragraph of Article 1004.01. The use of limestone based coarse aggregates will not be allowed.

Root Aeration Matting (Geocomposite 70-2) Shall meet the following American Society for Testing and Materials (ASTM) referenced standards;

PROPERTY TEST METHODS UNITS VALUE QUALIFIER TEST FREQUENCY

Resin

• Density ASTM D 1505 g/cm3 0.94 MAV lot

• Melt Flow Index ASTM D 1238 g/10min 1.0 MAX lot

Geonet Core

• Thickness ASTM D 5199 mil 200 ±10% 50,000 sf

• Carbon Black ASTM D 4218 % 2-3 range 50,000 sf

• Tensile Strength - MD ASTM D 4595 Lb/ft (kN/m) 40 ±10% 50,000 sf

Geotextile

• U.V. Resistance (500 hrs)

ASTM D 4335 % 70 Per formula

• Serviceability Class AASHTO M-288 Class 2

• Grab Tensile ASTM D 4632 lbs (N) 160 (712)

MARV 100,000 sf

• Grab Elongation ASTM D 4632 % 50 MARV 100,000 sf

• Tear Strength ASTM D 4533 lbs (N) 60 (267)

MARV 100,000 sf

• Puncture Resistance ASTM D 4833 lbs (N) 90 (400)

MARV 100,000 sf

• AOS ASTM D 4751 US Sieve (mm)

(0.212)

Max ARV 500,000 sf

• Permittivity ASTM D 4491 Sec 1.1 MARV 500,000 sf

Geocomposite

• Peel Adhesion - MD ASTM D7005 lb/in (g/in) 1 MAV 100,000 sf

Hydraulic Behavior of Geocomposite

Gradient Load ASTM D 4716 m2/sec 10,000 psf MAV 200,000 sf

0.1 2*10

Contract No. 61M58 Section No. 19-00037-02-BT

Execution.

Supersonic Air Tool (SSAT) Excavation: Shall be performed under the supervision of a certified arborist. The arborist shall inspect the exposed roots and determine and direct which roots should be pruned.

Roots must not be exposed for longer than 6 hours. Contractor is responsible for preventing roots from desiccating.

Placing CA-7 below Root Aeration Mat: Hand place CA-7 between exposed roots. Fill in all voids and hand tamp.

Installation of Geocomposite (Root…