ildot 85799-056.pdf

Letting November 6, 2026

Notice to Bidders, Specifications and Proposal

Contract No. 85799 ROCK ISLAND County Section 24-00402-00-PV Route FAU 5822 (Rock Island-milan Parkway) Project YLQN-489 () District 2 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.

November 6, 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. 85799 ROCK ISLAND County Section 24-00402-00-PV Project YLQN-489 () Route FAU 5822 (Rock Island-milan Parkway) District 2 Construction Funds

Reconstruction of the eastbound lanes and shoulders of the Rock Island-Milan Parkway from US 67 to 78th Ave. in Rock Island County. Work includes PCC pavement, raised median replacement, intersection lighting, striping and other required work.

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 85799

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

Rock Island County Highway Department Section 24-00402-00-PV

Rock Island County i

LOCATION OF PROJECT

DESCRIPTION OF PROJECT

SEQUENCE OF CONSTRUCTION

TRAFFIC CONTROL AND PROTECTION, (SPECIAL)

TRAFFIC CONTROL PLAN

MAINTENANCE OF ROADWAYS

CONSTRUCTION LAYOUT

AVAILABILITY OF ELECTRONIC FILES

EROSION CONTROL BLANKET

PAVEMENT REMOVAL

PROOF ROLLING

INLETS, TYPE B, TYPE 3V FRAME AND GRATE

GROOVING FOR RECESSED PAVEMENT MARKING, LETTERS AND SYMBOLS

REMOVE EXISTING TRAFFIC SIGNAL EQUIPMENT

VIDEO VEHICLE DETECTION SYSTEM

FLASHING BEACON, POST MOUNTED, SOLAR POWERED INSTALLATION

MEDIAN REMOVAL (SPECIAL)

INLETS, TYPE A, WITH SPECIAL FRAME AND GRATE (SPECIAL)

CONCRETE MEDIAN, TYPE SM-6.06 (SPECIAL)

REMOVE AND RE-ERECT TRAFFIC BARRIER TERMINAL, TYPE 1 SPECIAL, TANGENT

FLEXIBLE DELINEATORS

LINEAR DELINEATOR PANELS, 4 INCH

LINEAR DELINEATOR PANELS, 6 INCH

RELOCATE SIGN PANEL AND POST

TEMPORARY TRAFFIC SIGNAL TIMING

PERMANENT TRAFFIC SIGNAL TIMING

MODIFY EXISTING CONTROLLER AND CABINET

TEMPORARY PAVEMENT

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)

SPECIAL PROVISION FOR INSURANCE LR 107-4

SPECIAL PROVISION FOR CONSTRUCTION AND MAINTENANCE SIGNS LR 702

IDOT TRAINING PROGRAM GRADUATE ON-THE-JOB TRAINING

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 38 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 41 Cement, Finely Divided Minerals, Admixtures, Concrete, and Mortar Jan. 1, 2025 Jan. 1, 2026 80384 58 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 Construction Air Quality – Diesel Retrofit June 1, 2010 Jan. 1, 2025 80476 Deck Slab Repair Jan. 1, 2026

* 80029 62 Disadvantaged Business Enterprise Participation Sept. 1, 2000 July 2, 2026

* 80486 Engineer’s Field Office Nov. 1, 2026 80467 66 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 69 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 70 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 72 Pavement Marking April 1, 2025 Nov. 1, 2025 80468 Pavement Patching Aug. 1, 2025 80441 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 73 Removal and Disposal of Regulated Substances Jan. 1, 2024 April 1, 2026 80474 Residential Driveway Temporary Signal Nov. 1, 2025 80445 75 Seeding Nov. 1, 2022 July 1, 2026

* 80457 81 Short Term and Temporary Pavement Markings April 1, 2024 Nov. 1, 2026 80462 85 Sign Panels and Appurtenances Jan. 1, 2025 Jan. 1, 2026 80479 Sinusoidal Rumble Strips Jan. 1, 2026 80469 Slope Wall Aug. 1, 2025 80448 87 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 Structural Repair of Concrete Jan. 1, 2026 80397 89 Subcontractor and DBE Payment Reporting April 2, 2018 80391 90 Subcontractor Mobilization Payments Nov. 2, 2017 April 1, 2019

File Name Pg. Special Provision Title Effective Revised 80463 91 Submission of Bidders List Information Jan. 2, 2025 Mar. 2, 2025 80482 92 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 94 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 95 Training Special Provisions Oct. 15, 1975 Sept. 2, 2021 80429 Ultra-Thin Bonded Wearing Course April 1, 2020 Jan. 1, 2022

* 80439 98 Vehicle and Equipment Warning Lights Nov. 1, 2021 Nov. 1, 2026 80458 Waterproofing Membrane System Aug. 1, 2024 80302 99 Weekly DBE Trucking Reports June 2, 2012 Jan. 2, 2025 80454 100 Wood Sign Support Nov. 1, 2023 80427 101 Work Zone Traffic Control Devices Mar. 2, 2020 Jan. 1, 2026 80485 104 Work Zone Width Restriction July 1, 2026 80071 105 Working Days Jan. 1, 2002

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 on Uniform Traffic Control Devices for Streets and Highways" and 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 Sheet included herein which apply to and govern the construction of County Highway 78 (Rock Island-Milan Parkway), Section 24-00402-00-PV in Rock Island County, and in case of conflict with any part, or parts, of said Specifications, the said Special Provisions shall take precedence and shall govern.

LOCATION OF PROJECT

The project involves County Highway 78 (Rock Island-Milan Parkway) in Milan, Section 24-00402- 00-PV. The project is in Rock Island County in Section 25 & 36, Township 17N, Range 2W and Sections 30 & 31, Township 17N, R1W of the 4th principal meridian. The project limits are along CH 78 from US 67 to 78th Avenue.

DESCRIPTION OF PROJECT

The project consists of removal and replacement of eastbound lanes and shoulders; replacement of the raised median at various locations where deteriorated or for construction staging; installation intersection lighting at Camden Park entrance, median opening west of SN 081-3084, and at 27th Street intersection; conversion of Rock Island - Milan Parkway at Knoxville Road left turn movements from permitted to dedicated; and conversion to video detection at Knoxville Road and 78th Avenue (Indian Bluffs Road) intersections. No work is proposed for SN 081-3084.

SEQUENCE OF CONSTRUCTION

The Contractor shall submit a progress schedule to the Engineer before any work begins. The schedule shall identify the proposed sequence of work per Stage as identified in the plans, the controlling item of work for each stage, and a calendar day schedule based on typical working day conditions. The progress schedule shall be updated by the Contractor as the work proceeds.

Payment under this contract may be withheld if the Contractor has not submitted a satisfactory progress schedule.

Proposed improvements shall be constructed in an orderly and continuous manner. The Contractor shall make daily progress and not interrupt construction activity unless weather or unexpected utility conflicts prevent progress. The Contractor shall be solely responsible for providing sufficient materials, labor and equipment to complete the project within the contract time. All utility companies listed in the plans have been contacted and conflicts with proposed improvements discussed. The Contractor shall be responsible for coordinating with utility companies for all relocations or adjustments not completed prior to start of construction to complete the project within the contract time. Once the Contractor begins to remove pavement, the Contractor is expected to work expeditiously in completing the project. The Contractor shall inform the Engineer on a weekly basis what work will be performed the next week. The Contractor shall also inform the Resident Engineer of any changes to the weekly work plan at the earliest opportunity.

TRAFFIC CONTROL AND PROTECTION, (SPECIAL)

This work shall consist of all the furnishing of labor, materials, and equipment necessary to control and direct traffic traveling within the project limits for the purposes of protecting persons and property within the work zone from damage and injury. The Contractor’s efforts shall be guided by the standard detail drawings produced by the Illinois Department of Transportation and accepted standard practice. Section 701 of the Standard Specifications provides material and equipment requirements and operational practices to be employed by the Contractor. Section 701 is modified by this special provision to remove responsibility from the Engineer and Rock Island County for the administration, approval, and consent of the traffic control.

The construction drawings include project specific Stage Construction plans to be followed by the Contractor. The traffic control measures shall be tailored to the Sequence of Work that is employed by the Contractor. The Contractor is solely responsible for traffic control and protection within the project limits from the inception of the work until the final completion. The Engineer is available to the Contractor for consultation about the minimum requirements of the Standard Details and Standard Specifications. Any modifications to the sequence of staging or maintenance of traffic shall be approved by the Engineer prior to implementation.

Traffic control and protection measures shall also be placed along intersecting streets to notify drivers of the construction activity ahead. The Contractor shall place traffic control and protection measures as needed, specifically advance signing in accordance with the standard details referenced in the Plans and to the satisfaction of the Engineer.

The Contractor shall sweep and remove any soil tracked onto the street by the end of the workday or before four (4) hours has elapsed, whichever is sooner.

Basis of Payment: All labor, materials, and equipment required to plan and implement a traffic control plan throughout the contract duration will be paid for at the contract unit price per Lump Sum for

TRAFFIC CONTROL AND PROTECTION, (SPECIAL).

TRAFFIC CONTROL PLAN

Standards:

701101 701331 701416 701421 701422 701501

701901 728001 729001 BLR 17

Details:

District 2 Detail 40.1 – Traffic Control for Road Closures

General:

The contractor shall be responsible for the traffic control devices at all times during construction activities and shall coordinate the items of work to keep traffic hazards and/or inconveniences to a minimum.

All advanced warning signs shall be new or in like new condition at the start of the project. Unless otherwise specified, they shall be 48 inches by 48 inches, with a black legend on a fluorescent orange reflective background.

Existing traffic signs shall be maintained by the Contractor in a manner to ensure adequate protection from motorists using the street during construction. If it becomes necessary to remove existing signs for construction operations, temporary signs shall be installed and maintained by the Contractor at locations designated by the Engineer. Any existing traffic signs or posts damaged by the Contractor shall be replaced at his own expense.

Signs:

When covering existing signs, no tape shall be used on the reflective portion of the sign. Contact the District sign shop to cover techniques.

Any plates or direct applied sheeting used to alter signs shall have the same sheeting as the base sign.

No more than one kind of alteration shall be used to alter a sign.

Any post stubs without a sign in place and visible shall have a reflector placed on each post.

Devices:

A minimum of 3 drums or vertical barricades spaced at 4 feet shall be placed at each return when the sideroad is open.

Flaggers:

Flaggers shall comply with all requirements and signaling methods contained in the Department’s “Traffic Control Field Manual” current at the time of letting. The flagger equipment listed for flaggers employed by the Illinois Department of Transportation shall apply to all flaggers.

See Staging Plans for additional requirements.

Pavement Marking:

All temporary pavement markings that will be operational during the winter months (December through March) shall be paint.

District Standards Application:

Traffic Control for Road Closure: This work shall be done according to the Road Closure Standard and Section 701 of the Standard Specifications.

“ROAD CLOSED AHEAD” (W20-3(O)-48) with flasher and the appropriate arrow plate (W1-6(O)- 36x18 or W1-7(O)-36x18) shall be required on all side roads within the limits of the mainline “ROAD CLOSED AHEAD” signs.

The Contractor shall notify the County two (2) weeks prior to closure of a roadway segment.

Signing and devices required to close the road, shall be the responsibility of the Contractor.

The “ROAD CLOSED” sign on the Type III barricades shall be unobstructed and visible to traffic at all times. No equipment, debris, or other materials shall be stored within 20 feet of the first set of Type III barricades, unless approved by the Engineer.

The Contractor shall not drive around the outside of the Type III barricades but shall relocate the barricades temporarily for access. When it is necessary for the barricades to be moved for access, the Contractor shall move the devices into the left lane and/or left shoulder area behind barricades that are to remain in place. At no time shall the barricades be turned parallel to traffic flow for access purposes.

If a path becomes evident around the outside of the barricades, the Contractor shall be required to place additional Type III barricades to prevent driving around the existing barricades. Additional barricades shall be included in the cost of applicable Traffic Control Standards

Traffic Signal Work: No traffic signal work shall begin until all of the traffic signal hardware is on the job site. The existing traffic signal system shall remain in operation during the modernization work.

The work shall be scheduled so that a minimum of two signal indications for each phase remains in operation. No signal indication shall be absent for more than seven calendar days.

The Contractor will be allowed to shut down the existing signal system not to exceed 8 hours to replace the existing controller and cabinet. During this shutdown, the intersection will operate as a 4-way "Stop".

Maintenance of Traffic: The traffic shall be maintained using temporary crossovers as shown in the plan details.

The Contractor shall notify the Rock Island County Highway Department, the Village of Milan, emergency response agencies (i.e.: fire, ambulance, police), school bus companies and the Department of Transportation (Bureau of Project Implementation) a minimum of 72 hours prior to any changes in traffic control, The Contractor shall notify the Rock Island County Highway Department, and the Village of Milan, a minimum of 72 hours prior of any road/entrance closures or opening.

Two (2) changeable message signs shall be placed on this project two (2) weeks prior to the start of work informing the public of lane closures. Location of the message signs will be determined by the Resident Engineer. Additional changeable message signs will be paid for separately.

All costs involved in conforming with this provision shall be considered a part of the Lump Sum unit price for TRAFFIC CONTROL AND PROTECTION, (SPECIAL).

MAINTENANCE OF ROADWAYS

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 such as patching, intermittent resurfacing, sign maintenance, and shoulder 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.

CONSTRUCTION LAYOUT

The Contractor shall furnish and place construction layout stakes and perform layout work necessary to construct the work to the lines and grades shown on the plans. Available control points and benchmarks are shown in the plans.

The Contractor shall provide field forces, equipment, and material to perform the entire layout for the work, set additional stakes, which are needed to establish offset stakes, reference points, and any other horizontal or vertical controls, including supplementary benchmarks, necessary to secure a correct layout of the work. Stakes for line and grade of pavement and/or curb shall be set at sufficient station intervals to ensure conformance to plan line and grade. The Contractor will not be required to set additional stakes to locate a utility line which is not included as a pay item in the contract nor to determine property lines between private properties.

The Contractor shall be responsible for having the finished work conform to the lines, grades, elevations, and dimensions called for in the plans. Any inspection or checking of the Contractor's layout by the Engineer and the acceptance of all or any part of it shall not relieve the Contractor of his/her responsibility to secure the proper dimensions, grades and elevations of the several parts of the work. The Contractor shall exercise care in the preservation of stakes and benchmarks and shall have them reset when any are damaged, lost, displaced, removed, or otherwise obliterated.

As the Contractor is generating the survey layout model, all roadway elements shall be verified to fit within the final proposed slopes and right-of-way. If the Contractor determines a portion of the plans is incorrect or a portion does not agree with another portion, they shall contact the Engineer to have the problem resolved and additional work, if any, agreed upon. The Contractor shall not proceed until authority is received from the Engineer and problems are resolved.

The Contractor shall establish from the given survey points and bench marks the control points necessary to construct the individual project elements. The Contractor shall provide the Engineer adequate control near each individual element to allow adequate checking of construction operations. This includes, but is not limited to, line and grade stakes, line and grade nails in form work, and/or filed or etched marks in substantially completed construction work or other locations. It is the Contractor's responsibility to tie in centerline control points to preserve them during construction operations.

Stationing lathes at 100’ increments shall be placed and maintained along a left or right R.O.W. line throughout the duration of the contract.

Work shall be according to normally accepted self-checking surveying practices. Field notes shall be kept in standard survey field notebooks and those books shall become the property of the Owner at the completion of the project. Notes shall be neat, orderly, and in accepted form.

The Contractor shall set all horizontal control points at the end of construction and provide cross ties in a hardback survey book to the Engineer.

The Contractor shall set and provide the Engineer with a list of final benchmarks in a hardback survey book at the end of construction for future control.

The Contractor shall use diligent care and appropriate accuracy for placement of construction stakes in order to construct to the lines and grades shown in the plans. Points shall be positioned to allow reuse throughout the construction process.

Construction Layout Utilizing GPS Equipment:

If the Contractor opts to utilize GPS equipment for Construction Layout, the Contractor shall be required to complete the following in addition to the requirements above:

A portable GPS unit as a means to check grade, locate stationing, and offsets shall be on the job weekly and shall be available to the Engineer when checking and re-checking the Contractor’s final grades for acceptance.

This work for construction layout and staking will be paid for at the contract Lump Sum price for

CONSTRUCTION LAYOUT.

AVAILABILITY OF ELECTRONIC FILES

Electronic files of this project will be made available to the Contractor after the contract has been awarded. This information will be provided upon request in a AutoCad/Civil3D Platform software format ONLY. If data is required in other formats, it will be your responsibility to make these conversions. The Contractor shall coordinate obtaining electronic files through the Project Engineer.

If there is a conflict between the electronic files and the printed contract plans and documents, the printed contract plans and documents shall take precedence over the electronic files. The Contractor shall accept all risk associated with using the electronic files and shall hold the Department harmless for any errors or omissions in the electronic files and the data contained therein. Errors or delays resulting from the use of the electronic files by the Contractor shall not result in an extension of time for any interim or final completion date or shall not be considered cause for additional compensation.

The Contractor shall not use, share, or distribute these electronic files except for the purpose of constructing this contract. Any claims by third parties due to use or errors shall be the sole responsibility of the Contractor. The Contractor shall include this disclaimer with the transfer of these electronic files to any other parties and shall include appropriate language binding them to similar responsibilities.

EROSION CONTROL BLANKET

Description. This work shall consist of furnishing, transporting, and erosion control blanket over seeded areas in accordance with Section 251 of the Standard Specifications.

Materials. Excelsior blanket in accordance with Article 1081.10(a)

Method of Measurement. In accordance with Article 251.06.

Basis of Payment: The work will paid for at the contract unit price per Square Yard for EROSION

CONTROL BLANKET.

PAVEMENT REMOVAL

Existing HMA and concrete pavement materials shall be removed and paid for as described in Section 440 of the Standard Specifications. The thickness of existing pavements was determined by coring at various locations throughout the project. Existing aggregate base materials are not included in the pavement thickness and are not to be measured for payment.

When portions of the existing pavement and appurtenances are to remain in place, the contractor shall form a perpendicular straight joint by full-depth machine sawing at the ends and at all edges of portions to be removed to prevent surface spalling when the pavement is broken out. Saw cutting will not be measured separately for payment.

Existing integral curb removal is included in pavement removal.

Basis of Payment: The work associated with removal of pavements constructed as part of these improvements shall be measured and paid for at the contract unit price per Square Yard for

PAVEMENT REMOVAL.

PROOF ROLLING

This work shall consist of proof rolling the subgrade with a fully loaded tandem axle dump truck and driver at the direction of the Engineer. The truck shall travel the subgrade in all the proposed lanes of traffic in the presence of the Engineer.

This work will not be paid for separately but considered included in the various earthwork pay items.

INLETS, TYPE B, TYPE 3V FRAME AND GRATE

Description. This work shall consist of constructing Inlets, Type B, with Type 3V frames and grates in accordance with applicable portions of Section 602 of the Standard Specifications and Highway Standards 602306 and 604011.

Basis of Payment: The work will be paid for at the contract unit price per Each for INLETS, TYPE B, TYPE 3V FRAME AND GRATE.

GROOVING FOR RECESSED PAVEMENT MARKING, LETTERS AND SYMBOLS

This work shall be completed per Article 780.05, except that the grooving for letters and symbols shall be as close to the shape of the letter or symbol as possible, being a minimum of ½ inch wider on all sides. Excessive boxing out for the letter or symbol shall not be allowed.

This work shall be paid for at the contract unit price per SQ FT from the table below for GROOVING

FOR RECESSED PAVEMENT MARKING, LETTERS AND SYMBOLS.

GROOVING LETTERS AND SYMBOL AREAS

LETTERS SQ. FT.

SIZE A B C D E F G H I J K L M

8’ 10.9 11.0 11.0 11.0 11.1 11.1 11.0 11.0 3.3 11.0 10.9 11.0 10.9

SIZE N O P Q R S T U V W X Y Z

8’ 11.0 11.0 11.0 10.9 10.9 11.0 10.9 11.0 10.9 11.0 11.0 11.0 11.0

NUMBERS SQ. FT.

SIZE 1 2 3 4 5 6 7 8 9 0

8’ 3.3 11.0 11.0 10.9 11.0 11.0 11.0 11.0 11.0 11.0

Grooving Area Chart (Symbols)

SYMBOLS

Symbol

Pavement Marking Large

Size (SF)

Grooving

(SF)

Pavement Marking Small

Size (SF)

Grooving

(SF)

Through Arrow 11.5 12.6 6.5 7.3 Left or Right Arrow 15.6 16.8 8.8 9.8 2 Arrow Combination Left (or Right) and Through 26.0 28.2 14.7 16.2

3 Arrow Combination Left, Right, and Through 38.4 41.3 20.9 23.0

Lane Drop Arrow 41.5 43.5 -- -- Wrong Way Arrow 24.3 27.3 -- -- Railroad "R" 6ft (1.8m) 3.6 5.3 -- -- Railroad "X" 20ft (6.1m) 54.0 57.5 -- -- International Symbol of Accessibility 3.1 4.0 -- --

Bike Symbol 4.7 12.3 -- -- Shared Lane Symbol 8.0 16.7 -- --

REMOVE EXISTING TRAFFIC SIGNAL EQUIPMENT

Description. In addition to the requirements of Section 895 of the Standard Specifications, the following shall apply: This item shall consist of the removal and transporting of existing traffic signal equipment (mast arm assemblies, traffic posts, signal heads, pedestrian signal heads, push buttons, signs, etc.) as detailed in the plans. The signal equipment shall remain the property of the Rock Island County Highway Department for salvage.

This work will be paid for at the contract unit price Each for REMOVE EXISTING TRAFFIC SIGNAL EQUIPMENT. The price shall be payment in full for all labor and equipment necessary to complete the work as herein specified.

VIDEO VEHICLE DETECTION SYSTEM

The following video vehicle detection systems meet the specifications outlined in this section and are currently approved for use in District 2:

Iteris Vantage Next (4 Camera System) Auroscope Vision (4 Camera System)

The quantity and type of cable that will be required to complete the installation will vary depending on the equipment manufacturer.

The Contractor shall be responsible for determining the cable type and quantities of cable required for the video detection installations. All cable used shall meet current Department specifications, manufacturer's recommendations, and shall be subject to approval by the Engineer.

Each system to be installed shall be the latest model. Each intersection shall include four (4) cameras plus one (1) spare to be delivered to the Resident Engineer, the processor unit, connectors, software, and all cabling necessary back to the controller. All the equipment shall be compatible with the controller to be installed on this project. All equipment shall be installed according to manufacturer’s recommendations. The video detection cameras shall be capable of being zoomed and focused from a connection in the controller cabinet.

The video vehicle detection system shall include all necessary cables, electrical junction boxes, electrical and coaxial surge suppression, hardware, software, programming, and any camera brackets that are required for installation. These items should be taken into consideration and shall be included in the bid price 4 camera system and 1 spare camera for the VIDEO VEHICLE

DETECTOR SYSTEM.

If the unit requires the use of a power strip, the power strip/surge suppressor shall conform to the following minimum specifications:

• Let Through Voltage: 25-60dB

• Operating Voltage: 120VAC, 50/60H

• UL Suppressed Voltage Rating: 330V

• Energy Rating: 320J

• Peak Current NM/CM: 13k Amps NM, 13k Amps CM

• EMI/RFI Noise Filtration: >25-60dB A total of one 12" color video monitor and trackball with USB connect shall be included in the installation, to allow for the setup and monitoring of the video detection system.

All vehicle video detection systems shall be equipped with the latest software or firmware revisions.

The video vehicle system shall be configured and installed to NEMA TS2 Standards.

The Contractor shall be responsible for furnishing and installing all necessary camera brackets that are required for the camera installation. The camera mounting brackets shall be of aluminum or steel construction with a natural or white powder coated finish. All brackets shall be submitted to the Department for approval prior to installation. The material and installation shall be completed to the satisfaction of the Engineer.

The minimum requirements for a video vehicle detection system are listed below:

1.0 General

This Specification sets forth the minimum requirements for a system that monitors vehicles on a roadway via processing of video images and provides detector outputs to a traffic controller or similar device. All video detection systems must be approved by the Department. Currently, only Iteris Vantage Next and Econolite Autoscope Vision video detection systems are approved for use within District 2.

1.1 System Hardware

The system shall consist of four video cameras, one spare camera and an automatic control unit (ACU). The ACU shall process all detected calls and shall be equipped with the latest firmware revisions.

1.2 System Software

The system shall be able to detect either approaching or receding vehicles in multiple traffic lanes.

A minimum of 24 detection zones shall be user-definable per camera. The user shall be able to modify and delete previously defined detection zones. The software shall provide remote access operation and shall be the latest revision.

2.0 Functional Capabilities

2.1 Real-Time Detection

2.2 The ACU shall be capable of simultaneously processing information from up to four (4) video sources. The video shall be digitized and analyzed at a rate of a minimum of 30 times per second.

2.3 The system shall be able to detect the presence of vehicles in a minimum of 96 detection zones within the combined field of view of the image sensors.

3.0 Vehicle Detection

3.1 Detection Zone Placement

The video detection system shall provide flexible detection zone placement anywhere and at any orientation within the combined field of view of the image sensors. In addition, detection zones shall be coordinated with the signal phases. Each detection zone shall provide a minimum of two kinds of detection (extend, delay, presence or counting) as each phase may require. The type of detection provided by the detection zone is to be determined by the active status of the zone’s governing phase.

3.2 Optimal Detection

The video detection system shall reliably detect vehicle presence when the image sensor is mounted 30 feet (10 m) or higher above the roadway, when the image sensor is adjacent to the desired coverage area, and when the length of the detection area or field of view (FOV) is not greater than ten (10) times the mounting height of the image sensor. The image sensor shall not be required to be mounted directly over the roadway, however, extension poles shall be included in the cost when the mounting location requires the proper height adjustment for sight and lane coverage. A single image sensor, placed at the proper mounting height with the proper lens, shall be able to monitor six

(6) to eight (8) traffic lanes simultaneously.

3.3 Detection Performance

Overall performance of the video detection system shall be comparable to inductive loops. Using standard image sensor optics and in the absence of occlusion, the system shall be able to detect vehicle presence with 98% accuracy under normal conditions, (days & night) and 96% accuracy under adverse conditions (fog, rain, snow). The ACU shall output a constant call for each enabled detector output channel if a loss of video signal occurs in any camera. The ACU shall be capable of processing a minimum of twenty detector zones placed anywhere in the field of view of the camera.

4.0 ACU Hardware

4.1 ACU Mounting

The ACU shall be shelf or rack mountable. Nominal outside dimensions excluding connectors shall not exceed 7.25" x 19" x 10.5" (H x W x D).

4.2 ACU Environmental

The ACU shall be designed to operate reliably in the adverse environment found in the typical roadside traffic cabinet. It shall meet the environmental requirements set forth by the NEMA (National Electrical Manufacturers Association) TS1 and TS2 standards as well as the environmental requirements for Type 170 and Type 179 controllers. The minimum operating temperature range shall be from -31 to +165 degrees F (-35 to +74 degrees C) at 0% to 95% relative humidity, noncondensing.

5.0 ACU Electrical

5.1 The ACU shall be modular in design and provide processing capability equivalent to the Intel Pentium microprocessor. The bus connections used to interconnect the modules of the ACU shall be gold-plated DIN connectors.

5.2 The ACU shall be powered by 89 - 135 VAC, 60 Hz, single phase, and draw 0.25 amps, or by 190 - 270 VAC, 50 Hz, single phase, and draw 0.12 amps. If a rack mountable ACU is supplied, it shall be capable of operating from 10 to 28 VDC. The power supply shall automatically adapt to the input power level. Surge ratings shall be as set forth in the NEMA TS1 and TS2 specifications.

5.3 Serial communications to a remote computer equipped with remote monitoring software shall be through an RS-232 serial port. A 9-pin "D" subminiature connector on the front of the ACU shall be used for serial communications.

5.4 The ACU shall be equipped with a NEMA TS2 RS-485 SDLC interface for communicating input and output information. Front panel LEDs shall provide status information when communications are open.

5.5 The ACU and/or camera hookup panel shall be equipped with four RS-170 (B&W)/NTSC (color) composite video inputs for coaxial camera connections so that signals from four image sensors can be processed in real-time.

5.6 The ACU shall be equipped with a port to provide communications to a computer running the remote access software.

5.7 The ACU and/or camera hookup panels used for a rack mountable ACU shall be equipped with a video output port.

5.8 The ACU shall be equipped with viewable front panel detection LED indications.

6.0 Camera

6.1 The video detection system shall use medium resolution, color, image sensors as the video source for real-time vehicle detection. As a minimum, each image sensor shall provide the following capabilities:

a. Images shall be produced with a CCD sensing element with horizontal resolution of at least 500 lines and vertical resolution of at least 350 lines.

b. Useable video and resolvable features in the video image shall be produced when those features have luminance levels as low as 0.1 lux at night.

c. Useable video and resolvable features in the video image shall be produced when those features have luminance levels as high as 10,000 lux during the day.

d. Automatic gain, automatic iris, and absolute black reference controls shall be furnished.

e. An optical filter and appropriate electronic circuitry shall be included in the image sensor to suppress "blooming" effects at night.

6.2 The image sensor shall be equipped with an integrated zoom lens with zoom and focus capabilities that can be changed using either configuration computer software or hand-held controller. The machine vision processor (MVP) may be enclosed within the camera.

6.3 The image sensor and lens assembly shall be housed in an environmental enclosure that provides the following capabilities:

a. The enclosure shall be waterproof and dust-tight to NEMA-4 specifications.

b. The enclosure shall allow the image sensor to operate satisfactorily over an ambient temperature range from -29F to +165F (-34C to +74C) while exposed to precipitation as well as direct sunlight.

c. The enclosure shall allow the image sensor horizon to be rotated in the field during installation.

d. The enclosure shall include a provision at the rear of the enclosure for connection of power and video signal cables fabricated at the factory. Input power to the environmental enclosure shall be either 115 VAC 60 Hertz or 24 VAC/DC 60 Hertz.

e. A heater shall be at the front of the enclosure to prevent the formation of ice and condensation in cold weather, as well as to assure proper operation of the lens' iris mechanism. The heater shall not interfere with the operation of the image sensor electronics, and it shall not cause interference with the video signal.

f. The enclosure shall be light-colored and shall include a sun shield to minimize solar heating. The front edge of the sunshield shall protrude beyond the front edge of the environmental enclosure and shall include provision to divert water flow to the sides of the sunshield. The amount of overhang of the sun shield shall be adjustable to prevent direct sunlight from entering the lens or hitting the faceplate.

g. The total weight of the image sensor in the environmental enclosure with sunshield shall be less than 6 pounds.

h. When operating in the environmental enclosure with power and video signal cables connected, the image sensor shall meet FCC class B requirements for electromagnetic interference emissions.

6.4 The video output of the image sensor shall be isolated from earth ground. All video connections from the image sensor to the video interface panel shall also be isolated from earth ground.

6.5 The video output, communication, and power to the image sensor shall include transient protection to prevent damage to the sensor due to transient voltages occurring on the cable leading from the image sensor to other field locations.

6.6 A stainless steel junction box shall be available as an option with each image sensor for installation on the structure used for image sensor mounting. The junction box shall contain a terminal block for terminating power to the image sensor and connection points for coaxial cables from the image sensor and from the ACU.

6.7 A video interface panel shall be included for installation inside of the traffic cabinet. The panel shall provide coaxial cable / twisted pair connection points and an Edco RMCXI-06 transient suppressor for each image sensor. The shield side of the coaxial cable connection at the transient suppressor shall be connected to earth ground via the transient suppressor. If the coaxial cable / twisted pair used to connect the video signal from the image sensor to the ACU are to be routed through a conduit containing unbundled AC power cables, a video isolation amplifier shall be installed in addition to the video interface panel if interference is present. There will be no additional compensation for providing the video isolation amplifier if necessitated by the presence of video interference. The isolation amplifier shall buffer the video signal and provide transient suppression.

The isolation amplifier shall have a minimum common mode rejection ratio at 60 Hz of 100 dB.

6.8 The image sensor shall be connected to the ACU such that the video signal originating from the image sensor is not attenuated more than 3 dB when measured at the ACU. When the connection between the image sensor and the ACU is coaxial cable, the coaxial cable used shall be a low loss 75-ohm precision video cable suited for outdoor installation, such as Belden 8281 or West Penn P806.

7.0 Software

7.1 The system shall include the remote access software that is used to setup and configure the video detection system. The software shall be of the latest revision.

7.2 All necessary cable, adapters, and other equipment shall be included with the system.

8.0 Installation and Training

8.1 The supplier of the video detection system shall supervise the installation and testing of the video and video vehicle detection equipment. A factory certified representative from the supplier shall be on-site during installation.

8.2 Training shall be available upon request.

9.0 Warranty, Maintenance, and Support

9.1 The video detection system shall be warranted by its supplier for a minimum of two (2) years from date of turn-on. This warranty shall cover all material defects and shall also provide all parts and labor as well as unlimited technical support.

9.2 Ongoing software support by the supplier shall include updates of the ACU and supervisor software. These updates shall be provided free of charge during the warranty period.

9.3 The supplier shall maintain a program for technical support and software updates following expiration of the warranty period. This program shall be made available to the contracting agency in the form of a separate agreement for continuing support.

Basis of Payment:

The above work will be paid for at the contract unit price Each for VIDEO VEHICLE DETECTION SYSTEM which price will be payment in full for all labor, equipment, and materials required to supply, install, configure, and test the video vehicle detection system described above, complete.

FLASHING BEACON, POST MOUNTED, SOLAR POWERED INSTALLATION

This work shall be performed in accordance with applicable portions of Section 801 and 1078 of the Standard Specifications for Road and Bridge Construction and shall consist of furnishing and installing a new post mounted solar powered flashing beacon with flasher controller, as shown on the plans and as described herein.

The solar powered flashing beacon shall be a 12-inch single yellow flashing module with integrated flasher controller, with discrete solar panels, LED module, battery, electronics, compact housing and can operate 24 hours, 7 days a week. The flasher unit shall be installed on a wood sign support. The flash pattern shall be MUTCD compliant and have alternate flash patterns available. The battery shall have a life span of a minimum of 5 years and be field replaceable, independent of other components. The flasher beacon, battery compartment and beacon controller shall be secured with tamper resistant stainless-steel hardware and unless otherwise noted, the housing shall be black in color.

The Solar Panel shall be affixed to an aluminum plate and bracket and have angle and rotation adjustment capabilities and be mounted to a pole cap to facilitate maximum solar collection and optimal battery strength. The Solar Panel shall have a minimum operating temperature range of - 40° to 185°F.

The Solar Panel Assembly (panel, plate and bracket) shall be installed at the highest point on the assembly structure or as directed by the Engineer, and away from the travelled way.

The final elevation and location of the Flashing Beacons shall be approved by the Engineer prior to the Contractor…