Letting September 18, 2026

Notice to Bidders, Specifications and Proposal

Contract No. 72D17 SANGAMON County Section (110X-5) WRS, N, SW Various Routes Project NHPP-S5PT(458) District 6 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. 72D17 SANGAMON County Section (110X-5) WRS, N, SW Project NHPP-S5PT(458) Various Routes District 6 Construction Funds

1 mile of roadway reconstruction on 6th Street from the I-55/I-72 interchange to Stevenson Drive.

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

VARIOUS ROUTES

PROJECT NHPP-S5PT(458)

SECTION (110X-5)WRS,N,SW

SANGAMON COUNTY

CONTRACT NO. 72D17

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

SECTION (110X-5)WRS,N,SW

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

3 X EEO

4 Specific EEO Responsibilities Nonfederal-Aid Contracts 5 Required Provisions - State Contracts 6 Asbestos Bearing Pad Removal 7 Asbestos Waterproofing Membrane and Asbestos Hot-Mix Asphalt Surface Removal 8 Temporary Stream Crossings and In-Stream Work Pads 9 X 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 X Nighttime Inspection of Roadway Lighting 20 English Substitution of Metric Bolts 21 X Calcium Chloride Accelerator for Portland Cement Concrete 22 X Quality Control of Concrete Mixtures at the Plant 23 X 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

SECTION (110X-5)WRS,N,SW

i

TABLE OF CONTENTS

LOCATION OF PROJECT

DESCRIPTION OF PROJECT

TRAFFIC CONTROL PLAN

CONSTRUCTION PROCEDURES FOR PUBLIC EVENTS

CHANGEABLE MESSAGE SIGN

REAL-TIME TRAFFIC CONTROL SYSTEM

DETOUR SIGNING

DEWATERING FOR CONSTRUCTION PAVING OPERATIONS

TRAFFIC STAGING AND CONSTRUCTION SEQUENCING

BOLLARD REMOVAL

CAMERA MOUNTING ASSEMBLY

CAT 5 ETHERNET CABLE

CLOSED-CIRCUIT TELEVISION DOME CAMERA, IP BASED

COLD MILLING (SPECIAL)

COMBINATION CURB AND GUTTER REMOVAL

COMBINATION LIGHTING CONTROLLER

COMBINATION MAST ARM ASSEMBLY AND POLE

CONCRETE MEDIAN SURFACE, 4 INCH

CONCRETE MEDIAN SURFACE REMOVAL

CONCRETE MEDIAN, TYPE SM (DOWELLED)

CONCRETE MEDIAN, TYPE SM (SPECIAL)

CONNECTION TO EXISTING MANHOLE

CONTROLLED LOW-STRENGTH MATERIAL

DELINEATOR REMOVAL

EARTH EXCAVATION

ELECTRIC CABLE

FENCE REMOVAL

FIBER OPTIC CABLE 24 FIBERS, SINGLE MODE

FULL-ACTUATED CONTROLLER

HANDHOLE

HEADWALL REMOVAL

HMA ANTI-STRIP ADDITIVE REQUIREMENTS

HOT-MIX ASPHALT BINDER COURSE, VARIABLE DEPTH

HOT-MIX ASPHALT DRIVEWAY PAVEMENT, 8”

INLETS, SPECIAL, NO. 1

SECTION (110X-5)WRS,N,SW

ii

INLETS TO BE ADJUSTED

LANDSCAPING IMPACTS

LUMINAIRE, LED

MANHOLES TO BE ADJUSTED

MANHOLES, TYPE A, 10’-DIAMETER, TYPE 1 FRAME, CLOSED LID

MANHOLE (SPECIAL)

MODIFY SPRINKLER SYSTEM

PAVEMENT STATIONING NUMBERS AND PLACEMENT

PEDESTRIAN PUSH-BUTTON POST

PORTLAND CEMENT CONCRETE SIDEWALK CURB

POST REMOVAL AND REPLACEMENT

RELOCATE EXISTING MAILBOX

REMOVAL AND DISPOSAL OF REGULATED SUBSTANCES

REMOVAL AND DISPOSAL OF UNSUITABLE MATERIAL

REMOVAL OF ELECTRIC SERVICE INSTALLATION

REMOVE AND REINSTALL LIGHTING EQUIPMENT

REMOVE CONCRETE FOUNDATION (ELECTRICAL)

REMOVE EXISTING CONCRETE FOUNDATION

REMOVE EXISTING HANDHOLE

REMOVE EXISTING RIPRAP

REMOVE EXISTING GATE

REMOVE EXISTING PARKING BLOCKS

REMOVE EXISTING SERVICE INSTALLATION

REMOVE EXISTING TRAFFIC SIGNAL EQUIPMENT

REMOVAL OF EXISTING STRUCTURES

REMOVAL OF LIGHTING UNIT, SALVAGE

REMOVE WOOD POST

ROCK FILL

SANITARY MANHOLES TO BE ADJUSTED

SANITARY MANHOLES TO BE RECONSTRUCTED

SAWED JOINTS

SEDIMENT BASINS

SIGN REMOVAL, SALVAGE AND RELOCATION

SLOTTED DRAIN REMOVAL

SODDING

SOIL AND OTHER MATERIALS FOR EMBANKMENTS, FILLS, AND SUBGRADES

STATUS OF UTILITIES TO BE ADJUSTED

SECTION (110X-5)WRS,N,SW

iii

STEEL COMBINATION MAST ARM ASSEMBLY AND POLE 58 FT. (SPECIAL)

STORM SEWERS PROTECTED, CLASS A, 6” AND 8”

STORM SEWER REMOVAL

STORM SEWER - WATER MAIN REQUIREMENTS

TEMPORARY DRAINAGE

TEMPORARY LIGHTING SYSTEM

TEMPORARY PAVEMENT

TEMPORARY PAVEMENT (VARIABLE DEPTH)

TEMPORARY SIGNING

TREE REMOVAL

TREES

UNDERGROUND FACILITIES – DEPARTMENT OWNED

VALVE BOXES TO BE ADJUSTED

VIDEO VEHICLE DETECTION SYSTEM, 3 CAMERA

VIDEO VEHICLE DETECTION SYSTEM, 4 CAMERA

ACCESSIBLE PEDESTRIAN SIGNALS (APS) (BDE)

BITUMINOUS MATERIALS COST ADJUSTMENTS (BDE)

CEMENT, FINELY DIVIDED MINERALS, ADMIXTURES, CONCRETE, AND MORTAR (BDE)

COMPENSABLE DELAY COSTS (BDE)

DISADVANTAGED BUSINESS ENTERPRISE PARTICIPATION (BDE)

EROSION CONTROL BLANKET (BDE)

FUEL COST ADJUSTMENT (BDE)

GUARDRAIL (BDE)

HOT-MIX ASPHALT (BDE)

HOT-MIX ASPHALT – LONGITUDINAL JOINT SEALANT (BDE)

INLET FILTERS

PAVEMENT MARKING (BDE)

PAVEMENT PATCHING (BDE)

PERFORMANCE GRADED ASPHALT BINDER (BDE)

RAISED REFLECTIVE PAVEMENT MARKERS (BDE)

REMOVAL AND DISPOSAL OF REGULATED SUBSTANCES (BDE)

SEEDING (BDE)

SHORT TERM AND TEMPORARY PAVEMENT MARKINGS (BDE)

SIGN PANELS AND APPURTENANCES (BDE)

SOURCE OF SUPPLY AND QUALITY REQUIREMENTS (BDE)

STEEL COST ADJUSTMENT (BDE)

SUBCONTRACTOR AND DBE PAYMENT REPORTING (BDE)

SECTION (110X-5)WRS,N,SW

iv

SUBCONTRACTOR MOBILIZATION PAYMENTS (BDE)

SUBMISSION OF BIDDERS LIST INFORMATION (BDE)

SUBMISSION OF PAYROLL RECORDS – FEDERAL AID CONTRACT (BDE)

SURFACE TESTING OF PAVEMENTS – IRI (BDE)

SURVEYING SERVICES (BDE)

TEMPORARY CONCRETE BARRIER (BDE)

TRAFFIC SIGNAL BACKPLATE (BDE)

TRAINING SPECIAL PROVISIONS (BDE)

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

VEHICLE AND EQUIPMENT WARNING LIGHTS (BDE)

WEEKLY DBE TRUCKING REPORTS (BDE)

WORK ZONE TRAFFIC CONTROL DEVICES (BDE)

WORK ZONE WIDTH RESTRICTION (BDE)

WORKING DAYS (BDE)

PROJECT LABOR AGREEMENT

STORM WATER POLLUTION PREVENTION PLAN

SECTION (110X-5)WRS,N,SW

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 “Illinois 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 Various Routes, Project NHPP-S5PT(458), Section (110X-5)WRS,N,SW, Sangamon County, Contract No. 72D17, and in case of conflict with any part or parts of said Specifications, the said Special Provisions shall take precedence and shall govern.

Various Routes Project NHPP-S5PT(458)

Section (110X-5)WRS,N,SW Sangamon County Contract No. 72D17

LOCATION OF PROJECT

This project is located along Business Loop 55/6th Street at the southern end of the city of Springfield and the village of Southern View in Sangamon County, Illinois, and includes reconstruction of 6th Street from the I -55/72 interchange to approximately 900’ north of Stevenson Drive, for a project length of 5,722 feet (1.08 miles). Other roadways improved in this project include Hazel Dell Road, Lincolnshire Boulevard, St. Joseph Street, Stevenson Drive, 6th Street West, 6th Street East and portions of the existing BL 55/6th Street frontage roads.

DESCRIPTION OF PROJECT

The project includes reconstruction of BL 55/6th Street from a four-lane rural expressway to a six-lane urban expressway, including all side road intersections. This project extends existing 6th Street West south to Hazel Dell Road and extends Lincolnshire Boulevard west of 6th Street to the 6th Street West extension. This project expands and modernizes the roadways and provides pedestrian and bicycle accommodations including a multi-use path along portions of BL 55/6th Street, 6th Street West and Lincolnshire Boulevard. Improvements include full-depth HMA pavement on granular sub-base, HMA base course widening, HMA binder and surface courses, concrete curb and gutter, concrete medians, sidewalk, entrances, traffic signals, inlets, manholes, storm sewer, concrete box culverts, erosion control, earthwork and grading, pavement marking, and landscaping.

SECTION (110X-5)WRS,N,SW

TRAFFIC CONTROL PLAN

Effective: November 1, 1984 Revised: October 10, 2022

The following traffic control and protection will apply to this project:

Highway Standards:

701001 This standard will be used on 2 lane / 2 way traffic for all work activities greater than 15 ft. from the edge of pavement.

701006 This standard will be used on 2 lane / 2 way traffic for all work activities within 24 inches to 15 ft. from the edge of pavement.

701011 This standard will be used on 2 lane / 2 way traffic for off-road moving operations during the day only.

701101 This standard will be used on multi-lane highways for all work activities within 24 inches and 15 ft. from the edge of pavement.

701106 This standard will be used on multi-lane highways for all work activities greater than 15 ft. from the edge of pavement.

701301 This standard will be used on 2 lane / 2 way traffic for construction activities such as marking patches, stringline operations, utility operations, work zone pavement marking removal, and cleaning debris on the pavement.

701311 This standard will be used on 2 lane / 2 way traffic for construction activities that require continuous moving operations such as pavement marking and raised reflective pavement markers.

701411 This standard will be used for all work activities involving freeway and expressway lane closures in close proximity to entrance and exit ramps. Each ramp, regardless of the number of setups required, shall be considered as one each.

701422 This standard will be used any time a lane closure is required on a multilane expressway due to work encroaching on a travel lane adjacent to the shoulder or on the shoulder within 24” of the edge of pavement. This standard will be used for construction activities involving lane closures on NB BL 55 south of the Hazel Dell intersection.

701427 This standard will be used for lane closures on multi-lane highways for intermittent or moving operations. Typical operations include landscaping work, utility work, and pavement marking.

701451 This standard will be used for closing an interchange ramp to traffic. Ramp closures will be allowed to reconstruct the I-72 NE ramp intersection at BL 55 and the I-72 NW entrance ramp terminal.

SECTION (110X-5)WRS,N,SW

701456 This standard will be used for partial lane ramp closures when construction operations do not require a full ramp closure. This standard is intended for ramp pavement patching, guardrail installation, and aggregate shoulder placement.

701501 This standard will be used for all activities on 2 lane / 2 way urban sections requiring a lane closure.

701502 This standard will be used for all activities on 2 lane / 2 way urban sections with bi-directional turn lanes requiring a lane closure.

701601 This standard will be used for all activities on multilane, 1 way or 2 way urban sections requiring a lane closure.

701602 This standard will be used for all activities involving urban lane closures, on multilane, 2 way traffic with a bi-directional left turn lane.

701701 This standard will be used for all work activities involving a multilane urban intersection.

701801 This standard will be utilized for all sidewalk closures throughout the project limits.

BLR 21 This standard shall be used during construction activities which involve a temporary road closure of any city street. This work shall be done in accordance with Section 701 of the Standard Specifications and as per Standard BLR 21.

BLR 22 This standard will be used any time a city street is temporarily closed to through traffic. No roadways may be closed without written approval by the City and at least 48 hours notification prior to road closures. In addition to the requirements in this standard, two bi-directional flashing lights will be required on each type III barricade, and both advance warning signs will be equipped with flashing lights and one 18" x 18" orange flag attached above the signs from each direction. This work shall be done in accordance with Section 701 of the Standard Specifications and as per Standard BLR 22.

701901 This standard describes all permissible traffic control devices that can be utilized with the above-mentioned traffic control standards.

Limitations Of Construction: The Contractor shall coordinate the items of work to keep hazards and traffic inconveniences to a minimum, as specified below.

1. The Contractor shall contact the District 6 Bureau of Operations, (217) 785-5306, at least

72 hours in advance of beginning work and three weeks prior to implementing any traffic control.

2. All required fluorescent orange signs shall be 48 x 48 inches on this project unless otherwise noted in the plans. All work zone traffic control signs for this project shall be new.

3. In advance of each lane closure, the Contractor shall provide four “BE PREPARED TO STOP” (W3-4(O)48) signs. These signs shall be tripod mounted and placed at locations as designated by the Engineer, to provide adequate warning in advance of traffic back-

SECTION (110X-5)WRS,N,SW

ups. The signs will not be paid for separately but shall be included as part of the contract unit bid prices for the traffic control and protection pay items.

4. Where construction operations require the construction of a temporary ramp, a "BUMP" sign(s) (W8-1(O)48) shall be used. The Contractor shall place the signs adjacent to the temporary ramp or as directed by the Engineer. The signs shall remain in place until the temporary ramp is eliminated. The signs will not be paid for separately but shall be included as part of the contract unit bid prices for the traffic control and protection pay items.

5. Two through lanes of traffic in each direction shall be maintained on BL 55/6th Street and Stevenson Drive during peak hours. No lane closures (requiring less than two through lanes of traffic in each direction) will be permitted on BL 55/6th Street and Stevenson Drive from 6:00 AM to 9:00 AM and from 3:00 PM to 6:00 PM Monday–Friday without prior written approval from the Engineer.

6. Ramp closures will be allowed to reconstruct the BL 55 and I-72 NE ramp intersection and the I-72 NW entrance ramp terminal. The duration for the I-72 NE ramp closure shall be limited to 15 calendar days. The duration for the I-72 NW entrance ramp terminal closure shall be limited to 30 calendar days.

7. No drop offs at the edge of pavement due to shoulder replacement operations will be allowed overnight.

8. Parking of any personal vehicles within the road right-of-way will be strictly prohibited.

Parking of construction equipment within the right-of-way will be permitted only at locations approved by the Engineer.

9. Prior to allowing traffic on any portion of the roadway that has been cold milled, the Contractor shall have erected "Rough Grooved Surface" and "Uneven Pavement" signs that conform to the details shown in the plans. A minimum of one sign at each end of the improvement will be required. The Contractor shall maintain the "Rough Grooved Surface" signs until the cold milled surface is covered with HMA. The Contractor shall maintain the "Uneven Pavement" signs until the resurfacing operations are completed.

This work shall consist of furnishing, erecting, maintaining, relocating, and removing all traffic control items as described herein, in the Traffic Staging and Construction Sequencing special provision, and the details included in the Construction Staging and Maintenance of Traffic Plans.

Items shall include all signs, drums, barricades, and all other equipment, hardware and labor necessary to maintain the lane shifts and/or temporary closures. The Contractor will be required to install, maintain, remove, and relocate traffic control items numerous times and at various locations as directed by the Engineer.

All lump sum items shall include all applications throughout the duration of the contract.

SECTION (110X-5)WRS,N,SW

CONSTRUCTION PROCEDURES FOR PUBLIC EVENTS

During the Illinois State Fair, an additional changeable message sign shall be placed on NB I-55 north of the Toronto Road Interchange (Exit 90) informing motorists to use the Sangamon Ave Interchange (Exit 100B).

The additional message sign shall be in place beginning at 4:00 p.m. of the day preceding the beginning day of each event and end at 12:00 midnight on the final day of each event. The following is a list of the events and their respective dates:

2026 Illinois State Fair August 13-23, 2026 2027 Illinois State Fair August 12-22, 2027 2028 Illinois State Fair August 17-27, 2028

Basis of Payment. This work will be paid for at the contract unit price per Calendar Day For each

CHANGEABLE MESSAGE SIGN.

CHANGEABLE MESSAGE SIGN

The Contractor shall furnish nine changeable message signs for this project. The signs shall be operational 14 days prior to beginning construction on BL 55/6th Street and shall be located as directed by the Engineer.

It is anticipated the following locations shall have changeable message signs:

• NB BL 55 / 6th Street – just south of BL 55 / I-72 interchange

• NB I-55 for RTTCS (see RTTCS plan sheets)

• SB BL 55 / 5th Street / 6th Street – One mile ahead of lane closure

• SB BL 55 / 5th Street / 6th Street – Two miles ahead of lane closure saying “Traffic

Congestion // Next Two Miles”

• WB Stevenson Drive – One mile ahead of lane closure

• WB Stevenson Drive – Two miles ahead of lane closure saying “Traffic Congestion // Next

Two Miles”

• EB I-72 – just east of the MacArthur Blvd Interchange

• EB I-72 for RTTCS (see RTTCS plan sheets)

• WB I-72 – east of the BL 55 / I-72 interchange

The changeable message sign(s) will remain for the duration of the project.

Basis of Payment. This work will be paid for at the contract unit price per CALENDAR DAY for each CHANGEABLE MESSAGE SIGN. Any relocation of the signs, as directed by the Engineer, during construction will not be paid for separately but shall be included in the cost of the changeable message sign.

SECTION (110X-5)WRS,N,SW

REAL-TIME TRAFFIC CONTROL SYSTEM

Revised: January 31, 2024

Description. This item shall consist of furnishing, installing, maintaining, relocating, and removing an automated portable real-time traffic control system (RTTCS) meeting the requirements noted herein and providing the maintenance of the system during the duration of the work. This work shall be completed according to Article 701 of the Standard Specifications, as detailed on the plans, described herein, and as directed by the Engineer.

The Contractor shall furnish said system for measuring and delivering condition-responsive alerts on the project.

The RTTCS shall consist of, at a minimum:

Real-Time Traffic Control Sensor Unit. Each unit shall consist of:

• Two warning signs with sign legend as shown on the plans.

• Each sign shall have amber wigwag LED flashing lights (two flashers per sign for a total of four flashers per unit) attached with a minimum lens size of 12 inches. The flashers shall have affixed hoods that shade the lens from sunlight thus providing improved daytime recognition of the flashers during operation. The flash pattern and flash sequence shall comply with the Manual of Uniform Traffic Control devices (MUTCD), Chapter 4L.

• One warning sign with two flashers on any ramps between the taper and the farthest real-time traffic control sensor unit.

• One traffic sensor.

• Remote communication hardware, software, and controllers capable of activating flashing beacons and changeable message signs.

Real-Time Traffic Control Central Base Unit. This base will be equipped with appropriate hardware, software, and dedicated network connection. Alternatively, software capable of managing the RTTCS may be downloaded to the Engineer’s computer to replace the central base unit.

The Real-Time Traffic Control System setups shall be installed at the three-locations shown on the Wig-Wag Traffic Warning System Placement sheet in the plans. The exact locations of all devices shall be determined as part of an onsite communications analysis with the Contractor and approved by the Engineer. The Contractor shall be responsible for building embankment “pads” for the RTTCS devices to sit on for the duration of the project if the areas where they are to be placed are steeper than standard leveling legs can manage. These pads will ensure the devices sit level and are included in the cost of pay item for Real-Time Traffic Control System.

The RTTCS shall meet the following specifications:

• The RTTCS shall be a proven system that has been successfully deployed and operated in actual work zone and congestion areas.

• The RTTCS shall be capable of identifying stopped slowed traffic conditions. The system shall self-test for communication or sensor failures.

SECTION (110X-5)WRS,N,SW

• The RTTCS shall operate continuously (24 hours, 7 days a week) when in place and visible to the motoring public.

• The sensors shall be of a type whose accuracy is not degraded by inclement weather or degraded visibility conditions including, but not limited to, precipitation, fog, darkness, excessive dust, and road debris.

• The RTTCS shall be capable of acquiring traffic data for a minimum of two lanes of traffic in the same direction.

• Traffic sensors shall sequentially activate the flashers as the queue extends and be capable of only activating specific flashers.

• The RTTCS shall be capable of activating a changeable message sign.

• The RTTCS shall utilize static signs with two wigwag flashing beacons that only activate when slowed or stop traffic is detected to convey real-time traffic condition information to motorists.

• The flashers shall activate whenever the average traffic speeds fall below 40 mph and turn off when the average speed returns to above 50 mph. These speed thresholds shall be capable of being changed based on actual field trials and the location of the sensor.

• The RTTCS shall have a reliable communication system and provide warnings to the system manager and the Engineer when communication or device failures are detected.

• The RTTCS shall be capable of notifying the Engineer and District 6 Operations Communications Center when the flashing beacons are activated.

• The RTTCS and flashers shall have a reliable power source.

• The RTTCS shall allow authorized users to manually override the system remotely during apparent system failures.

• Critical system operator control functions shall be password protected.

• The RTTCS shall have reporting features to a secure website. The website shall, at a minimum, show the current speeds at each detector location and whether the warning flashers are activated. The website shall provide access to archival data for the duration of the project. This data shall be printable.

• The RTTCS shall provide data logging of the system events and key detection data. The data is to include the dates and times that the system was activated, which signs were activated, duration of the activation, and average speeds at each detections device. The data shall be provided to the Engineer at the close of the project in Microsoft Excel ®, latest format.

• If during the duration of the project, it is found that the distances or locations in relation to each other and/or to the taper, detectors, or warning signs need to be relocated due to a change in the traffic conditions or queuing patterns, a one-time adjustment is included in the cost of the real-time traffic control sensor unit.

• The RTTC sensor units shall be relocated as the taper is relocated.

• During winter shut-down all trailers shall be removed from the right of way, and the signs shall be removed as directed by the Engineer. All removal, storage, and reinstallation shall be included in the cost of the real-time traffic control senor units.

System Performance. After the RTTCS is in place and operational, knowledgeable contractor personnel shall be available for one work week (until Friday at 8:00 PM) after the lane closures are in place to ensure that the system is functioning properly. The responsible individual shall be capable of responding within two hours during the first week and shall have sufficient resources to correct any issues with the RTTCS at that time.

Additional real-time traffic control sensor units installed as directed by the Engineer after the initial

SECTION (110X-5)WRS,N,SW

deployment of the system shall be in operation and accepted by the Engineer within seven calendar days after the Contractor receives written notification of changes from the Engineer. If the Contractor fails to update the RTTCS to full operation within the time limits specified above, the Engineer will impose a daily monetary traffic control deficiency deduction for each calendar day (or portion thereof) the deficiency exists as described in Article 105.03 of the Standard Specifications.

Method of Measurement. This work will be measured for payment as follows.

Real-time traffic control system shall consist of furnishing, installing, maintaining, removing, and programming various hardware shown on the Real-Time Traffic Control Setup detail, software, website, and network components including the central base unit necessary to run the RTTCS.

Each sensor unit includes two signs, four flashers, and one sign with two flashers on any ramps, traffic sensors, remote communication hardware and software, and controllers capable of activating flashing beacons and changeable message signs.

Basis of Payment. This work will be paid for at the contract unit price per LUMP SUM for REAL- TIME TRAFFIC CONTROL SYSTEM as shown on the Wig-Wag Traffic Warning System Placement details.

ROAD CLOSURE RESTRICTION

Reviewed: April 14, 2020

The construction of the southbound BL 55/I-72 interchange ramp and St. Joseph Street shall (at times as specified in the plans) be performed under road closure, which shall not be implemented until work in that area is ready to commence.

Closure of the southbound BL 55/I-72 interchange ramp shall be limited to seven days as specified in the plans.

Prior to the closing of the southbound BL 55 / I-72 interchange ramp, St. Joseph Street, or 6th Street West, the Contractor shall notify the Engineer and the other agencies listed below at least 21 days in advance of the closure. The notification must also list the projected start and end date of road closure.

District 6 Traffic Operations Engineer 217-785-5306 Sangamon County Engineer 217-535-3070 City of Springfield Public Works Department 217-789-2000 Sangamon County Sherriff’s Dept. 217-753-6880 Illinois State Police – Troop 6 217-786-6677 District 186 School District 217-525-3000 Little Flower Catholic School 217-529-4511 United States Post Office (Springfield, IL) 217-788-7480 Sangamon Mass Transit District 217-522-5531 Emergency Services (911) 217-753-6666 Village of Southern View 217-529-3352

SECTION (110X-5)WRS,N,SW

DETOUR SIGNING

Reviewed: April 14, 2020

Description. This work shall consist of furnishing, erecting, maintaining, covering, uncovering, and removing the detour signing as shown in the plans for the temporary ramp closure of the I-72 NE Exit Ramp and the I-72 NW Entrance Ramp.

Materials. The materials used shall be in accordance with Section/Article 1090, 1091, 1006.29, and 1007.05 of the Standard Specifications.

Construction Requirements. The Contractor shall furnish and erect new detour signs at locations indicated in the plans. The signs shall be post mounted. Where it is possible, signs may be attached to existing posts or poles. The Contractor can contact District 6 Operations (Traffic) at

(217) 785-5306 for assistance in detour signing locations.

The signs are to be in place and uncovered prior to any road closure. When a detour is not in use, the detour signing shall be completely covered.

The signs and posts shall be removed when detours are no longer required. The Contractor shall return the area around the signs to its previous condition, at the Contractor’s expense. This may include seeding.

Method of Measurement. This work will be measured for payment on a lump sum basis and shall include furnishing, erecting, and maintaining detour route signs at locations indicated in the plans.

Basis of Payment. This work will be paid for at the contract unit price per LUMP SUM for DETOUR

SIGNING.

DEWATERING FOR CONSTRUCTION PAVING OPERATIONS

Description. The proposed staging of the pavements shown during the sequence of operations in the Staging Plans will require intermittent dewatering of runoff trapped by the temporary adjacent uneven edges of pavements created in areas where the proposed profile is being adjusted and varies from the existing conditions.

Construction Requirements. Any standing water shall be pumped or removed by an approved method to prevent encroachment of water onto the temporary traffic lanes during construction staging of paving operations to the satisfaction of the Engineer and flow into the lanes diverted using a method acceptable to the Engineer. The runoff shall be pumped or directed to a suitable outlet into an adjacent median or roadside ditch with a positive outlet.

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

DEWATERING.

SECTION (110X-5)WRS,N,SW

TRAFFIC STAGING AND CONSTRUCTION SEQUENCING

The Contractor shall provide the Engineer at least two weeks advance notice prior to mobilizing any equipment, materials, or work forces to the project site so that the city of Springfield and the village of Southern View can notify property owners of the upcoming construction, traffic patterns, signage, etc., and notify the public of any temporary lane closures required. The Contractor shall prepare and submit to the Engineer for review and approval a Traffic Staging and Construction Sequencing Plan consistent with the concept described herein and shown on the details included in the Construction Staging and Maintenance of Traffic Plans to outline the sequence of construction for all the work shown in the plans. The Contractor’s plan will indicate any lane closures and the location of traffic within each stage (day and night) along with any temporary barriers. Work shall not begin until the Contractor’s Traffic Staging and Construction Sequencing Plan is approved in writing by the Engineer.

At locations where construction operations result in a differential in elevation between the edge of pavement or edge of shoulder, traffic control shall be installed in compliance with IDOT’s Work Zone Safety Memorandum. Any channelizing devices installed along the drop-off shall be either temporary concrete barrier wall (pinned as required) or type II barricades with flashing lights. The cost to comply with these requirements shall be included in the cost of the applicable traffic control and protection standard being utilized. Temporary concrete barrier, pinning temporary concrete barrier, relocating temporary barrier, impact attenuators, and relocating impact attenuators shall be paid for separately.

The Contractor will schedule their work in accordance with the following requirements and in compliance with the Standard Specifications for keeping roads open to traffic. Any deviations proposed by the Contractor to the following Traffic Staging and Construction Sequencing special provision shall be submitted in writing and approved by the Engineer prior to the Contractor making traffic control revisions.

In general, the construction sequence shall be as follows:

Pre-Stage A:

1. The Contractor shall coordinate utility adjustments for the entire project during this stage and allow relocations by the appropriate utilities to be completed prior to initiating construction.

2. The Contractor shall construct the Sixth Street West extension from south of the FitClub entrance (Sta. 63+25+/-) to the south project limits (Sta. 39+97). The Contractor shall establish access to Sixth Street West at the Hazel Dell Road intersection.

3. The Contractor shall construct the west Lincolnshire Boulevard extension to top of binder course from the west BL 55 edge of pavement to the new Sixth Street west extension. In order to establish access to the newly constructed west leg of Lincolnshire Boulevard, a temporary ramp will be required to bridge the grade differences. The temporary pavement ramp cross-slope shall be transitioned back to existing both north and south of the intersection per the plan callouts. A temporary pavement connection to the west Lincolnshire leg for southbound BL 55 traffic will also need to be constructed just north of Lincolnshire Boulevard.

4. The Contractor shall construct the west leg of Hazel Dell Road from the Sixth Street West

SECTION (110X-5)WRS,N,SW

extension to the BL 55 West Frontage Road and the BL 55 West Frontage Road from Sta.

96+25+/- to the end of the proposed cul-de-sac (Sta. 102+10+/-). Access to Buraski Builders and Marathon Gas Station must be maintained at all times. The Contractor shall maintain access to these businesses on the BL 55 West Frontage Road during construction of Hazel Dell Road and vice versa.

5. The Contractor shall place temporary traffic signals on BL 55 at Hazel Dell Road, Lincolnshire Boulevard, St. Joseph Street, and Stevenson Drive intersections.

6. The Contractor shall utilize intermittent single lane closures while adhering to the timeframes specified in the Limitations of Construction, Item 5 for both directions of BL 55 to allow for the removal of median and corner island barrier/mountable curb, concrete median and corner island surface, median paved shoulders, signals and handholes; and the placement of temporary pavement in the existing median and corner island areas.

7. The existing BL 55 pavement width will make maintaining two lanes of traffic in each direction impractical during median paving and widening operations, so restricting traffic to a single lane in each direction will be required during pre-stage construction. When this is required, work shall limited to the timeframes specified in the Limitations of Construction, Item 5.

8. The Contractor shall open access to Lincolnshire Boulevard west of BL 55.

Stage 1:

1. The Contractor shall shift traffic over to the west side of BL 55 while maintaining two 12’ lanes of traffic in each direction. The Contractor shall utilize temporary concrete barrier along the east traffic edge to protect the work zone/temporary pavement construction and between opposing traffic lanes on BL 55. The Contractor shall construct temporary pavement on the east side of BL 55. Note that removal of a portion of the existing BL 55 east frontage road will need to be completed prior to constructing the temporary pavement.

See the staging notes below.

2. The Contractor shall provide dual 12 ft. left turn lanes for southbound traffic at Stevenson Drive. Single 12 ft. left turn lanes for northbound and southbound traffic shall be provided at Hazel Dell Road, Lincolnshire Boulevard and St. Joseph Street.

3. The Contractor shall construct the curb and gutter, sidewalks, and HMA pavement of Sixth Street West from Sta. 63+25+/- to St. Joseph Street. Construction will be completed one block at a time using full road closures. The majority of access will be maintained from the east via St. Joseph Street and the remaining portion of the BL 55 west frontage road.

Access to residences and businesses with entrances solely on Sixth Street West will be maintained utilizing temporary access drives or single lane closures with flaggers to control traffic. The lane closures will be removed to allow one lane of traffic in each direction during non-working hours.

4. The Contractor shall construct curb and gutter, sidewalks, and HMA pavement on the east leg of St. Joseph Street from Sta. 13+00+/- to Sixth Street East. The Contractor shall maintain access to at least one entrance of the McDonald’s and Arby’s businesses at all times.

5. The Contractor shall close the existing BL 55 east frontage road to through traffic and eliminate the access points from St. Joseph Street (south of the Arby’s entrance), Flora Street, and Sixth Street East.

6. The Contractor shall remove the existing BL 55 east frontage road from the Straight Street intersection to just south of the Arby’s entrance.

7. The Contractor shall construct the curb and gutter, shoulders, entrances, sidewalks, and HMA pavement of Sixth Street East and the Strip Mall Entrance Road. Prior to initiating

SECTION (110X-5)WRS,N,SW

construction of the Strip Mall Entrance Road, the Contractor shall construct a temporary access entrance (commercial) from Sixth Street East to the parking area on the south side of the strip mall buildings as detailed in the Construction Staging and Maintenance of Traffic Plans. Upon completion of the Strip Mall Entrance Road and accompanying entrances, the temporary entrance from Sixth Street East will be removed. Access to businesses with entrances solely on Sixth Street East will be maintained utilizing temporary access drives or single lane closures with flaggers to control traffic. The lane closures will be removed to allow one lane of traffic in each direction during non-working hours.

Stage 2:

1. The Contractor shall shift traffic over to the east side of BL 55 while maintaining two 12’ along the west traffic edge to protect the work zone and between opposing traffic lanes on BL 55. The Contractor shall construct the west side of BL 55 to the top of binder course lifts.

2. The Contractor shall provide dual 12 ft. left turn lanes for southbound traffic at Stevenson Drive. The Contractor shall provide single 12 ft. left turn lanes for southbound and northbound traffic at the Lincolnshire Boulevard and St. Joseph Street intersections.

3. Southbound and northbound turning movements at Hazel Dell Road will be closed per the final proposed traffic configuration.

4. Access to the west leg of Hazel Dell Road will be maintained via Lincolnshire Boulevard and Sixth Street West until the permanent right-in only slip ramp from southbound BL 55 is completed.

5. Access to the east leg of Hazel Dell Road will be maintained via Lincolnshire Boulevard and Octavus Via. Access to the Green Mazda car dealership will be maintained via the entrance off Octavus Via.

6. The Contractor shall close the BL 55 west frontage road access point from St. Joseph Street and close the portion of the existing BL 55 west frontage road to be removed south of Corporate Court to the north entrance of the Comfort Inn hotel.

7. The Contractor shall maintain access to the former Stults Scientific property via St. Joseph Street, Sixth Street West, Flora Street, and the existing BL 55 west frontage road utilizing a temporary access drive or single lane closures with flaggers to control traffic until completion of the newly configured intersection of the BL 55 west frontage road with Flora Street and the accompanying cul-de-sac.

8. Access to the parking lot south of Anderson Electric will be maintained by constructing portions of the newly aligned BL 55 west frontage road one section at a time. The portion of the BL 55 west frontage road including half of the Anderson Electric south parking lot entrance to Corporate Court will be constructed first while maintaining access to the entrance from the north via Sixth Street West and Kimble Court. Once this portion is completed, access to the Anderson Electric entrance will be maintained via this newly constructed portion of the BL 55 west frontage road while the remaining portion of the BL 55 west frontage road including a southbound BL 55 right-in only slip ramp is completed.

9. The Contractor shall close the west leg of St. Joseph Street to eastbound traffic at the Sixth Street West intersection. The Contractor shall maintain a single westbound lane of traffic between BL 55 and Sixth Street West and maintain temporary access to the hotel off St. Joseph Street. Access to the bank will be maintained via the entrance off Sixth Street West.

10. Upon completion of the entire portion of the BL 55 west frontage road from St. Joseph

SECTION (110X-5)WRS,N,SW

Street to Corporate Court, access to the frontage road can be opened via the new southbound BL 55 slip ramp.

11. The Contractor shall construct sidewalk, curb and gutter, and HMA pavement on the southbound side of BL 55 from a point just north of Stevenson Drive to the southern project limits. A temporary 30 calendar day closure of the southbound BL 55 to I-72 WB interchange ramp will allow the Contractor additional space to construct the new southbound lanes and I-72 entrance ramp terminal connection while maintaining two lanes of southbound traffic on BL 55.

12. The Contractor shall construct curb and gutter, sidewalk, and HMA pavement on the south side of St. Joseph Street from Sixth Street West to BL 55.

13. To maintain traffic across intersections that have grade differences, construction may need to be staged one half at a time across intersections, and temporary ramps will be required to bridge any grade differences that are not traversable.

Stage 3:

1. The Contractor shall shift traffic over to the west side of BL 55 while maintaining two 12 ft.

along the east traffic edge to protect the work zone and between opposing traffic lanes on BL 55. The Contractor shall construct the east side of BL 55 to the top of binder course lifts.

2. The Contractor shall provide a single 12 ft. left turn lane for southbound traffic at Stevenson Drive. The Contractor shall provide a single 11.5 ft. northbound left turn lane and a single 12 ft. southbound left turn lane at Lincolnshire Boulevard. The Contractor shall provide a single 11.5 ft. left turn lane for northbound traffic at St. Joseph Street.

3. The Contractor shall keep the west leg of St. Joseph Street closed to eastbound traffic at the Sixth Street West intersection. The Contractor shall maintain a single westbound lane of traffic between BL 55 and Sixth Street West and maintain access to the bank off St.

Joseph Street. Access to the hotel will be maintained via the entrances off Sixth Street West.

4. The Contractor shall construct curb and gutter, sidewalk, and HMA pavement on the north side of St. Joseph Street from Sixth Street West to BL 55.

5. The Contractor shall construct sidewalk, curb and gutter, and HMA pavement on the northbound side of BL 55 from a point just north of Stevenson Drive to the southern project limits.

6. The Contractor shall construct the remainder of curb and gutter, sidewalk, and HMA pavement on the east leg of St. Joseph Street from BL 55 to Sta. 13+00+/-.

7. The Contractor shall construct sidewalk, curb and gutter, and HMA pavement widening on Stevenson Drive and the east leg of Lincolnshire Boulevard.

8. The Contractor shall construct sidewalk, curb and gutter, and HMA pavement on the right-in only slip ramps of Hazel Dell Connector Road and Straight Street.

9. The Contractor shall construct sidewalk, curb and gutter, and HMA resurfacing of the east leg of Hazel Dell Road.

10. The Contractor shall construct curb and gutter, HMA shoulder, and HMA pavement of the I-72 interchange northeast ramp. A temporary ramp closure of up to 15 calendar days will be allowed.

11. To maintain traffic across intersections that have grade differences, construction may need to be staged one half at a time across intersections, and temporary ramps will be required to bridge any grade differences that are not traversable.

SECTION (110X-5)WRS,N,SW

Post-Stage 3:

1. Upon completion of the BL 55 northbound and southbound through lanes, two lanes of traffic can be maintained in both directions by using the outside two through lanes. The inside through lanes shall be closed to allow for construction of the proposed improvements within the median areas. The median pavement in the intersections will need to be staged to maintain access to the sideroads.

2. Construction of corner islands and installation of permanent traffic signal equipment can be completed utilizing single lane closures along BL 55 and the side roads. Two lanes of traffic in both directions on BL 55 must be maintained at all times.

3. The full-depth pavement at the intersection of Sixth Street West and St. Joseph Street as well as the raised median along the west leg of St. Joseph Street shall be completed using staged construction and a flagger. One lane of traffic must be maintained in all directions and access to the hotel and bank shall be kept open at all times.

4. Upon completion of all the median and corner island curb and gutters, the final surface course pavement lift can be completed on BL 55 and Lincolnshire Boulevard. Two lanes of traffic in both directions on BL 55 must be maintained at all times. The milling and resurfacing areas on St. Joseph Street west of Sixth Street West can be constructed one half at a time using a flagger.

5. Upon completion of all paving items, pavement marking, signing, final grading, seeding and permanent erosion control items shall be installed using the appropriate highway standard.

The Contractor shall follow the general sequence of construction outlined herein when preparing the Traffic Staging and Construction Sequencing Plan and provide pedestrian and vehicular to all properties access to the satisfaction of the Engineer at all times during construction.

AGGREGATE SURFACE COURSE FOR TEMPORARY ACCESS

Revise Article 402.10 of the Standard Specifications to read:

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

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

a) Private Entrance. The minimum width shall be 12 ft. The minimum compacted thickness shall be 6 in. The maximum grade shall be 8%, except as required to match the existing grade.

b) Commercial and Field Entrances. The minimum width shall be 24 ft for a commercial entrance and 20 ft for a field entrance. The minimum compacted thickness shall be 9

in. The maximum grade shall be 6%, except as required to…