24-0094_SPECIAL_PROVISIONS_2026-09-28.pdf

SALT CREEK IMPROVEMENTS

VILLAGE OF SCHAUMBURG

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CONTRACT SPECIFICATIONS

TABLE OF CONTENTS

PAGE

SPECIAL PROVISIONS 1

PROJECT DESCRIPTION AND LOCATION 1

PROPOSAL GUARANTY 1

BASIS OF AWARD 1

SCHEDULE 1

DEFINITION OF TERMS 2

CONTROL OF WORK 2

CONTROL OF MATERIALS 2

LEGAL REGULATIONS AND RESPONSIBILITY TO PUBLIC 3

INTENT OF THE CONTRACT 4

PROSECUTION AND PROGRESS 5

MOBILIZATION 5

LAYOUT 5

TRAFFIC CONTROL AND PROTECTION 5

TEMPORARY SOIL EROSION AND SEDIMENT CONTROL 6

IN-STREAM WORK PLAN 7

PROTECTION OF EXSTING TREES 8

SELECTIVE CLEARING 8

CLEARING 10

DEMOLITION 10

EARTH EXCAVATION 11

EMBANKMENT 11

TOPSOIL 12

FINE GRADING 12

SUBGRADE PREPARATION 13

AGGREGATE BASE COURSE 14

TRENCH BACKFILL 15

HOT MIX ASPHALT (HMA) PAVING 15

WOOD CHIP TRAIL 16

PORTLAND CEMENT CONCRETE (PCC) CONSTRUCTION 16

PORTLAND CEMENT CONCRETE (PCC) SIDEWALK 17

GUARD RAIL 17

BOX CULVERTS 18

LIMESTONE OUTCROPPING WALLS AT BRIDGES 18

OUTCROPPING SHORELINE TREATMENT 19

RIFFLE POOL STRUCTURE 20

INTERPLANTED BOULDER TOE 21

COBBLE BANK STABILIZATION, RIFFLE ENHANCEMENT, AND STREAMBED ARMOR 22

SEEDING 22

EROSION CONTROL BLANKET 23

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TREE AND SHRUB PLANTING 24

PERENNIAL PLANTS 25

SITE RESTORATION 26

WEED CONTROL 27

ECO MONITORING AND MANAGEMENT 28

NPDES COMPLIANCE 33

LIST OF ATTACHMENTS AND EXHIBITS

Check Sheet for Recurring Special Provisions (IDOT BLR 11300)

Geotechnical Exploration Report

Permits and Approvals

US Army Corps of Engineers (USACE) 404 Nationwide Permit (NWP) North Cook Soil and Water Conservation District (NCSWCD) Soil Erosion and Sediment

Control (SESC) Approval Illinois Department of Natural Resources-Office of Water Resources (IDNR-OWR)

Individual Permit Metropolitan Water Reclamation District of Greater Chicagoland (MWRD) Watershed

Development Permit (WDP) Cook County Department of Transportation and Highways (CCDOTH) Access Permit Illinois Environmental Protection Agency (IEPA) NPDES ILR10 Permit ComEd Temporary Construction Easement

Plans

SPECIAL PROVISIONS

The following Special Provisions supplement the Illinois Department of Transportation "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", the "Manual of Test Procedures for Materials" in effect on the date of invitation for bids, and the "Supplemental Specifications and Recurring Special Provisions" adopted January 1, 2026, indicated on the Check Sheets included herein which apply to and govern the proposed improvement designated as Salt Creek Improvements, and in case of conflict with any part or parts of said Specifications, the said Special Provisions shall take precedence and shall govern. The referenced IDOT Standard Specifications can be downloaded at no cost here:

http://www.idot.illinois.gov/doing-business/procurements/engineering-architectural-professional-services/consultants-resources/

PROJECT DESCRIPTION AND LOCATION

The project includes floodplain and stream restoration along Salt Creek Tributary No. 3 and Tributary No.5 within the Village of Schaumburg, Cook County, Illinois. Work includes selective removal of invasive woody and herbaceous vegetation, earth excavation and grading, stone placement, native seeding and planting, tree and shrub planting, erosion and sediment control, and related work. The project also includes construction of two box culvert pedestrian trail bridges, wood chip and asphalt trail construction, guardrail, and related work.

The work is generally located at 101 Schaumburg Court, Schaumburg, Illinois.

PROPOSAL GUARANTY

The amount of the proposal guaranty shall be as per Local Roads and Streets Check Sheet #LRS6 Special Provision for Bidding Requirements and Conditions for Contract Proposals.

BASIS OF AWARD

It is the Owner’s intent to award one contract for project implementation to one bidder based upon the lowest Base Bid total price received from a responsible and qualified Contractor. One, multiple, or no Additional Alternates may be added based upon available budget.

SCHEDULE

Substantial completion, defined as completion of all work excluding punch list work and Monitoring and Management, must be achieved by June 30, 2027.

Final completion, defined as completion of all work inclusive of punch list work, posting of a Monitoring and Management Bond, Letter of Credit, or other non-revokable financial guaranty acceptable to the Village of Schaumburg, must be achieved by August 15, 2027.

DEFINITION OF TERMS

Terminology shall conform to Section 101 Definition of Terms of the Standard Specifications except as modified herein.

Modify Article 101.14 as follows: Department shall refer to the Village of Schaumburg.

Modify Article 101.15 as follows: Standard Specifications and/or SSRBC. The Illinois Department of Transportation “Standard Specifications for Road and Bridge Construction” adopted January 1, 2022, and the "Supplemental Specifications and Recurring Special Provisions" adopted January 1, 2026, indicated on the Check Sheets included herein.

Modify Article 101.16 as follows: Engineer. The Village of Schaumburg’s authorized representative.

CONTROL OF WORK

Comply with Section 105 Control of Work of the Standard Specifications except as modified herein.

Add the following to Article 105.03 Conformity with Contract: it is made explicitly clear that the Contractor shall be solely responsible for Quality Control (QC) as necessary to ensure all work is completed in conformance with the plans and specifications. The Contractor shall complete testing, measurements, or other methods acceptable to the Engineer. Provide written documentation of same to the Engineer demonstrating compliance with the plans and specifications. The Engineer will conduct spot checks, random tests, etc. for Quality Assurance (QA). Failure of the Engineer to bring the Contractor’s attention to non-conforming work does not relieve the Contractor of their responsibility to complete all work in conformance with the plans and specifications.

Replace Article 105.09 Survey Control Points with the following: Refer to benchmarks on plan set cover sheet. The Contractor shall provide all layout for the Engineer’s approval. The Engineer reserves the right to make minor field adjustments to the layout with no changes in price or time.

This special provision shall also apply to Check Sheet #9 Construction Layout Stakes.

CONTROL OF MATERIALS

Comply with Section 106 Control of Materials of the Standard Specifications except as modified herein.

Add the following to Article 106.01 Source of Supply and Quality Requirements: it is made explicitly clear that the Contractor shall be solely responsible for Quality Control (QC) as necessary to ensure all materials are in conformance with the plans and specifications. The Contractor shall complete testing, obtain material certifications from suppliers, or other measures acceptable to the Engineer. Provide written documentation of same to the Engineer demonstrating compliance with the plans and specifications. The Engineer will conduct spot checks, random tests, etc. for Quality Assurance (QA). Failure of the Engineer to bring the Contractor’s attention to non-conforming material does not relieve the Contractor of their responsibility to complete all work in conformance with the plans and specifications.

LEGAL REGULATIONS AND RESPONSIBILITY TO PUBLIC

Comply with Section 107 Legal Regulations and Responsibility to the Public of the Standard Specifications except as modified herein.

Add the following to Article 107.04 Permits and Licenses: The construction site activities of this project shall be conducted by the Contractor in compliance with the following permits and approvals issued for this project:

US Army Corps of Engineers (USACE) 404 Nationwide Permit (NWP) North Cook Soil and Water Conservation District (NCSWCD) Soil Erosion and Sediment

Control (SESC) Approval Illinois Department of Natural Resources-Office of Water Resources (IDNR-OWR)

Individual Permit Metropolitan Water Reclamation District of Greater Chicagoland (MWRD) Watershed

Development Permit (WDP) Cook County Department of Transportation and Highways (CCDOTH) Access Permit Illinois Environmental Protection Agency (IEPA) NPDES ILR10 Permit ComEd Temporary Construction Easement

Add the following to the second paragraph of Article 107.20 Protection and Restoration of Property: The Contractor shall limit their activities, haul routes, temporary staging areas, and vehicular access throughout the site as shown on the plans or as approved by the Engineer. The Contractor shall plan their work to minimize on-site and off-site disturbances, and shall proactively manage noise, dust, vehicular traffic, and other disturbances to the satisfaction of the Engineer.

Add the following to Article 107.20: The Contractor shall maintain conveyance of all flows during construction of this project. When existing drainage facilities are disturbed, the Contractor shall provide and maintain temporary inlets, outlets, and connections for all private and public drains, sewers, culverts, and other drainage facilities. The Contractor shall provide facilities to take in all storm water which will be received by these drains and sewers, and discharge the same. The Contractor shall provide and maintain a pumping plant, if necessary, and a temporary outlet and be prepared at all times to dispose of water received from these temporary connections until such time that they are no longer necessary or permanent drainage facilities are in service.

Add the following to the last paragraph of Article 107.20: The cost of all materials and equipment required and all labor necessary to comply with the above Provisions will not be paid for separately but shall be considered as included in the unit bid prices of the contract; no additional compensation will be allowed.

Article 107.23 Protection of Streams, Lakes, Reservoirs, Natural Areas, Wetlands, Prairie Areas, Savannahs, and Endangered and Threatened Species. In addition to the requirements of this Article, the Contractor’s attention is directed to the fact that this site may contain high-quality natural areas in various stages of restoration and management. The Contractor shall exercise extreme care and restrict their operations to the work areas depicted on the plans. Any damage to natural areas outside of the work shown on the plans shall be repaired by the Contractor to the satisfaction of the Engineer at no additional cost to the Owner.

Article 107.24 Forest Protection. In addition to the requirements of this Article, the Contractor’s attention is directed to the fact that this site contains, and is adjacent to, numerous high-quality forests in various stages of restoration and management. The Contractor shall exercise extreme care and restrict their operations to the work areas depicted on the plans. Any damage to forest areas outside of work shown on the plans shall be repaired by the Contractor to the satisfaction of the Engineer at no additional cost to the Owner.

Article 107.26 Indemnification. In addition to the requirements of this Article, for any activity occurring on an easement or any other property not owned by the Village of Schaumburg, the indemnification shall also be extended to the property owners and any tenants thereon.

Article 107.27 Insurance. Insurance requirements shall be as stipulated by the Village of Schaumburg.

Article 107.39 Contractor’s Responsibility for Locating and Protecting Utility Property and Services.

In addition to the requirements of this article, the Contractor is to be aware of and protect existing infrastructure. Such infrastructure may include, but is not necessarily limited to, inlets, underdrains, culverts, storm sewers, electric lines, water lines, irrigation system, and related improvements. Any utility locations depicted on the plans are for informational purposes only and are not guaranteed; the Contractor shall make their own investigations and adjust their work accordingly to avoid impacting infrastructure.

INTENT OF THE CONTRACT

Modify Article 104.01 Intent of the Contract as follows: The intent of the contract is to prescribe a complete outline of work that the Contractor is to complete to deliver a complete project. Any work not specifically called for on the Plans or in these Special Provisions that is necessary or convenient to completing the project shall be considered incidental work.

Method of Measurement. Incidental work will not be measured for payment.

Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

PROSECUTION AND PROGRESS

Add the following to Article 108.02 Progress Schedule: Contractor shall proactively communicate with the Engineer in a timely manner regarding completed work, planned work, changes to the schedule, cancellations, etc. Contractor shall provide a weekly schedule of planned activities to the Engineer not later than 3:00 PM local time on Thursday of the preceding work week. Contractor shall provide a daily update including a general description of work completed during the previous day, work planned for the next day, cancellations, changes, etc. to the Engineer not later than 3:00 PM local time the day before any planned or canceled workday. Email or other electronic communication approved by the Engineer will be acceptable.

Modify the first sentence of Article 108-03 Prosecution of the Work as follows: The Contractor shall begin pre-construction activities including but not limited to submitting insurance and other required forms, preparation of a schedule acceptable to the Engineer, preparation of an acceptable in-stream work plan, and related work to be performed under the Contract not later than fourteen calendar days after Notice to Proceed unless otherwise directed by the Engineer. Field work shall not commence until written authorization is granted by the Engineer.

MOBILIZATION

Mobilization shall conform to Section 671 Mobilization of the Standard Specifications.

Compliance with CCDOTH Access Permit requirements including providing 1) the contractor certificate of insurance and 2) Performance and Right Of Way Restoration Bond in the amount of $20,000.00 to the CCDOTH Permit Office prior to the start of work within the County Right Of Way (Plum Grove Road).

LAYOUT

Layout shall conform to the requirements of Check Sheet #9 Special Provision for Construction Layout Stakes accept as modified herein. No survey control will be provided by the Engineer.

Contractor shall utilize Benchmark(s) provided on the plans and/or recover their own survey control. The Contractor shall provide all layout for the Engineer’s review and approval. The Engineer reserves the right to make minor field adjustments to the layout with no changes in price or time.

TRAFFIC CONTROL AND PROTECTION

Description. This work includes the use of barricades, signs, and other traffic control devices as necessary to protect the public from all aspects of the work during the life of the project. Traffic control and protection shall be in accordance with this Special Provision; Section 701 Work Zone

Traffic Control and Protection of the Standard Specifications; the “Illinois Manual on Uniform Traffic Control Devices for Streets and Highways;” CCDOTH requirements within the Plum Grove Road right-of-way; any special details contained in the Plans or referenced Highway Standards; and LOCAL ROADS AND STREETS RECURRING SPECIAL PROVISIONS check sheet LRS3 Special Provision for Work Zone Traffic Control Surveillance.

Special attention is called to Article 107.09 and the following Highway Standards.

Number Title 701901 Traffic Control Devices 701801 Sidewalk, Corner or Crosswalk Closure 701101 Off-Road Operations, Multilane, 15’ to 24” From Pavement Edge 701106 Off-Road Operations, Multilane, More Than 15’ Away 701422 Lane Closure, Multilane, for Speeds 45 MPH to 55 MPH 704001 Temporary Concrete Barrier 643001 Sand Module Impact Attenuators

The Contractor shall be solely responsible for protecting the public from the Contractor’s construction activities until final completion. The furnishing, placing, and removal of any temporary barrier, warning device, and/or signage necessary to protect public health, safety, and welfare from construction shall be included whether or not shown on the plans or otherwise specified.

Method of Measurement. This work will not be measured for payment.

Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

TEMPORARY SOIL EROSION AND SEDIMENT CONTROL

Description: The Contractor shall provide temporary soil erosion and sediment control measures during construction to prevent water pollution. Work shall conform to Section 280 Temporary Erosion and Sediment Control of the SSRBC except as modified herein.

Replace the first paragraph of Article 280.04 Temporary Erosion Control Systems with the following: Temporary erosion control systems shall be considered part of the Contractor’s means and methods. The Contractor shall implement erosion and sediment control systems to prevent water pollution during completion of the work. Temporary erosion control systems shall be subject to the Engineer’s review and approval. The Engineer reserves the right to require additional temporary erosion control systems if water pollution occurs or is imminent, or is required by a regulatory agency during construction to maintain compliance.

All conditions of project permits and approvals from regulatory agencies must be complied with at all times.

Temporary soil erosion and sediment control systems shall conform to the minimum requirements of the Illinois Urban Manual.

Modify Article 280.07 Method of Measurement as follows: Temporary soil erosion and sediment control will not be measured for payment.

Modify Article 280.08 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

IN-STREAM WORK PLAN

Description. This work shall be performed in accordance with Article 502.06 and RECURRING SPECIAL PROVISION Check Sheet #8 Special Provision for Stream Crossings and In-Stream Work Pads of the Standard Specifications except as specifically modified herein. The work shall consist of the preparation of an in-stream/wetland work plan including but not limited to the installation, maintenance, removal, and disposal of the temporary crossings, cofferdams, dewatering operations, and related work to isolate the work area from water within regulated wetlands and Waters of the U.S. (WOUS) in accordance with the permits and approvals from the U.S. Army Corps of Engineers (USACE), North Cook Soil and Water Conservation District (NCSWCD), and Metropolitan Water Reclamation District of Greater Chicago (MWRD).

Materials. Materials shall be in accordance with the requirements of the USACE, NCSWCD, and

MWRD.

Construction Requirements. Construction shall be in accordance with Article 502.06(a) and RECURRING SPECIAL PROVISION Check Sheet #8 Special Provision for Stream Crossings and In- Stream Work Pads of the Standard Specifications and in accordance with the requirements of the USACE, NCSWCD, and MWRD.

The Contractor shall be responsible for diverting the water flow from the construction area using a method meeting the approval of the Engineer and in accordance with the requirements of the USACE, NCSWCD, and MWRD.

All conditions of project permits and approvals from the USACE, NCSWCD, and MWRD must be followed at all times. As a condition of these permits and approvals, the Contractor will be required to submit an In-Stream/Wetland Work Plan to the Engineer for approval. The Contractor shall prepare and submit to the Engineer a written in-stream work plan detailing work with Waters of the U.S. and regulatory wetlands. The in-stream work plan shall include dewatering, and any other required soil erosion and sediment control work required for regulatory compliance that is not included in other pay items. Upon receipt of regulatory approval of the in-stream work plan, the Contractor shall implement the plan for the duration of the project. The Contractor shall make changes to the plan if required by the regulatory agencies.

Method of Measurement: This work will not be measured for payment.

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

PROTECTION OF EXISTING TREES

General. The Contractor shall prevent damage to existing trees not indicated for removal. Work shall conform to Articles 201.05 through 201.07 of the Standard Specifications except as modified herein.

Article 201.05 Protection of Existing Plant Material. Replace the second paragraph with the following: Parking or maneuvering of machinery, stockpiling of materials, or any other use will not be allowed upon unpaved areas within the dripline of existing trees unless the plans indicate construction work within said dripline and/or approved by the Engineer. The Contractor shall exercise caution when working within the dripline of a tree, when required, to minimize damages.

Article 201.05 (a). Replace with the following: The Contractor shall manually erect Tree Protection Fencing at the dripline of trees to remain as shown on the plans and in locations requested by the Engineer.

Modify Article 201.05 (b) Tree Trunk Protection. This work will not be required unless requested by the Engineer in response to Contractor operations.

Article 201.05 (c) Pruning for Safety and Equipment Clearance. Modify this Article as follows: Plant material shall be pruned to provide the minimum clearance required, as approved by the Engineer.

Modify Article 201.06 Care of Existing Plant Material as follows: All roots greater than or equal to one inch (1”) diameter must be pruned. Root pruning shall be performed by an ISA certified arborist if requested by the Engineer. Fertilizing after root pruning is not required.

Modify Article 201.10 Method of Measurement as follows: Temporary fencing, truck protection, pruning, root pruning, and other required work included in this special provision will not be measured for payment.

Modify Article 201.11 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

SELECTIVE CLEARING

Description. This section includes removal of invasive woody trees and shrubs, woody and herbaceous vines, and herbaceous broadleaf and graminoid weeds within the limits of work. Work shall conform to the requirements of Section 201 Clearing, Tree Removal and Protection, Care and Repair of Existing Plant Material of the SSRBC except as specifically modified herein.

Qualifications. The Contractor’s staff completing the work must be capable of identifying plants to be removed and remain to the species level at the time the work occurs. All persons applying herbicide must possess an Illinois Pesticide Applicator’s or Operator’s license with certifications in the appropriate categories.

Materials: Herbicides shall be selected by the Contractor based upon their experience and site conditions. Additives such as surfactants, water, and other materials shall be per the manufacturer’s recommendations and shall be included. Contractor must submit a sample label and MSDS for all herbicides for approval at least one week before their use.

Woody Vegetation Control. Invasive woody plants within the limits of work shall be cut. Stumps shall be cut flat to within one inch (1”) of the surrounding ground surface. All stumps must be treated with an appropriate herbicide within one (1) hour of cutting. Any stump that is not treated within this timeframe must be recut and treated as specified.

Invasive woody plants shall include all species not native to northeastern Illinois, as defined in Flora of the Chicago Region by Wilhelm and Rericha (2017). Some aggressive, weedy native species shall be included. Invasive woody plants include, but are not limited to, those listed on the plans and as directed by the Engineer.

The Contractor shall be responsible for positively identifying all species before removal, and cooperatively working with the Engineer. Any non-target species tree removed shall be replaced at a 1:1 DBH to caliper ratio as directed by the Engineer and at the Contractor’s cost.

Disposal of Cut Woody Vegetation. With the Engineer’s approval, chipped material and intact logs may be used on site for wood chip paths. Excess material shall be removed from the site and properly disposed of. Excess material must be removed from the site within 7 calendar days of being cut unless otherwise approved by the Engineer. Burning of brush piles to dispose of cut material will not be permitted.

Herbaceous Weed Control. Selective herbaceous weed control shall be completed where undesirable, invasive, non-native weeds (e.g., common reed, reed canary grass, teasel, purple loosestrife, etc.) exist or as directed by the Engineer. Weedy native species (e.g., ragweed, Canada goldenrod, etc.) shall also be targeted. Follow herbicide label directions at all times. Herbicide must be applied by an Illinois Licensed Pesticide Operator or Applicator. Provide copies of Licenses to Engineer for all who will be applying herbicides. Use care not to damage adjacent vegetation to remain. The Contractor shall replace desirable vegetation to remain affected by their selective herbaceous weed control efforts at their own cost.

Follow-up Control. Woody and herbaceous control work shall include not less than three (3) follow-up maintenance visits conducted approximately thirty (30), sixty (60), and ninety (90) days after initial selective clearing to treat any resprouts and/or new seedlings. All maintenance visits must be conducted during the generally recognized growing season while the vegetation is actively growing and not dormant.

Method of Measurement. This work will not be measured for payment.

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

CLEARING

Description: The Contractor shall remove trees, brush, and other materials that conflict with proposed improvements as shown on the plans and approved in the field by the Engineer. Tree removal shall consist of the cutting, grubbing, removal, and disposal of trees and stumps. Work shall conform to Section 201 Clearing, Tree Removal and Protection, Care and Repair of Existing Plant Material except as modified herein.

The Engineer may direct and/or approve preservation of individual native trees within the limits of clearing on a case-by-base basis.

Disposal of Cut Woody Vegetation. With the Engineer’s approval, chipped material and intact logs may be used on site for wood chip paths. Excess material shall be removed from the site and properly disposed of. Excess material must be removed from the site within 7 calendar days of being cut unless otherwise approved by the Engineer. Burning of brush piles to dispose of cut material will not be permitted.

Modify Article 201.10 Method of Measurement as follows: This work will not be measured for payment.

Modify Article 201.11 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

DEMOLITION

General. The Contractor shall complete all demolition as shown on the plans and as necessary for new construction. Work shall conform to Sections 201 and 501 of the Standard Specifications except as modified herein.

Any pavement to be removed shall be sawcut perpendicular to the main direction of traffic prior to removal. Pavement removal shall include the full depth of pavement and shall include any aggregate base below.

Removal and disposal of demolition debris shall be included in the cost of demolition. The Contractor shall comply with all IEPA requirements regarding the testing, certification and off-site disposal of all excess and undesirable material including recyclable materials, non-special waste, rubbish, and clean construction or demolition debris. Contractor shall be responsible for any testing and reporting necessary to properly dispose of demolition debris, and the cost shall be included. If testing reveals the presence of any non-hazardous special waste, hazardous waste, or petroleum or any fraction thereof, the Contractor shall notify the Engineer immediately and work shall follow Article 107.19.

Method of Measurement. Demolition will not be measured for payment.

Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

EARTH EXCAVATION

Description: this work shall conform to the requirements of Section 202 Earth and Rock Excavation of the Standard Specifications except as modified herein.

Add the following to Article 202.02 Clearing, Tree Removal, and Protection of Existing Plant Material: The Contractor’s attention is drawn to the fact that clearing within the limits of excavation is incidental to this work; clearing includes, but is not limited to, removal and disposal of logs, branches, debris, roots, and all woody vegetation less than six inches (6”) diameter at breast height within the limits of work. The removal of woody vegetation equal to or greater than six inches (6”) diameter at breast height is included in the Clearing special provision.

Add the following to Article 202.03 Removal and Disposal of Surplus, Unstable, Unsuitable, and Organic Materials: The intent of this contract is to balance soil cut and fill on site via creation of gently sloping natural appearing topography and berms on site. Refer to the plans.

Modify Article 202.07 Method of Measurement as follows: Excavation will not be measured for payment.

Modify Article 202.08 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

EMBANKMENT

Description: This work includes placement of soil or aggregate fill to raise the ground elevation. All work shall conform to Section 205 Embankment of the Standard Specifications except as modified herein.

Add the following to Article 205.03 Preparation of Existing Ground Surface: Embankment shall be constructed after Demolition has been completed. The Contractor’s attention is drawn to the fact that clearing within the limits of embankment is incidental to this work and/or included in other special provisions. Clearing includes, but is not limited to, removal and disposal of logs, branches, debris, and all woody vegetation less than six inches (6”) diameter at breast height within the limits of embankment.

The intent of this contract is to balance soil cut and fill on site via creation of gently sloping natural appearing topography and berms on site. Movement of soil on site shall be included. Refer to the plans.

TOPSOIL

Description: This work includes stripping, storing, and respreading topsoil. Work shall conform to Section 211 Topsoil and Compost of the Standard Specifications except as modified herein.

Add the following to Article 211.04 Placing Topsoil and Compost: A minimum 6” depth of topsoil shall be respread in all areas to be seeded or planted.

Modify Article 211.07 Method of Measurement as follows: Topsoil will not be measured for payment.

Modify Article 211.08 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

FINE GRADING

Description: Work includes fine grading prior to aggregate base installation, and fine grading of landscape areas. Work shall conform to Section 212 Final Shaping, Trimming, and Finishing and Section 480 Earth Shoulders and Medians of the Standard Specifications except as modified herein.

Replace Article 212.02 Grading Sections with the following: The finished surface of subgrade shall not vary from the lines, grades, and cross sections shown on the plans by more than one-tenth of a foot (0.1’). The finished surface of topsoil in landscape areas shall not vary from the lines, grades, and cross sections shown on the plans by more than one-tenth of a foot (0.1’).

Replace Article 212.05 Finishing with the following: Hand labor may be required in addition to mechanical equipment to achieve the lines, grades, and cross sections shown on the plans. The Contractor shall blend proposed lines, grades, and cross section into existing grades as necessary to create smooth transitions. Abrupt changes due to cuts and/or fills must be smoothed out to the satisfaction of the Engineer. The Engineer reserves the right to make minor field adjustments to the lines, grades, and cross sections shown on the plans at no additional cost.

Modify Article 212.06 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

SUBGRADE PREPARATION

Description: This work consists of preparing the completed or existing earthwork prior to placement of aggregate base course or other improvements. Work shall conform to Section 301 Subgrade Preparation of the Standard Specifications except as modified herein.

Add the following to Section 301.04 Subgrade Compaction and Stability: Subgrade preparation shall be performed after the completion of earthwork at all locations which will receive trails, pavement or structural improvements in preparation for the placement of aggregate base material. When proof rolling reveals additional unstable areas, undercut excavation shall be undertaken only as approved and directed by the Engineer.

Subgrade preparation shall include final grading to within 0.1-foot of required subgrade elevations, shaping, disking, aerating, sheepsfoot rolling, vibratory rolling, compacting, proof rolling and testing as required. Areas proposed for trails and pavement shall be compacted to a minimum ninety-five percent (95%) of maximum density based on a Standard Proctor (ASTM D-698). Any areas that are inaccessible to a roller shall be compacted either by other mechanical means or using a hand tamper meeting the approval of the Engineer. The Contractor shall proof roll the finished subgrade with the Engineer present. If proof rolling is determined to be infeasible by the Engineer, the Engineer reserves the right to utilize other methods to confirm compaction.

When proof rolling or other methods reveals unstable soil conditions, the Contractor shall undertake remedial action. If soil moisture is excessive, the material shall be aerated and compacted again and retested. If, in the opinion of the Engineer, a more significant remedy is required, the Contractor shall perform additional work, such as removal of unsuitable materials, placement of geotextile fabrics and/or soil replacement, with an approved suitable material.

Test rolling of subgrades shall be performed in the presence of the Engineer. When test rolling reveals unsuitable or unstable soils, the Engineer shall determine the most appropriate remedy and direct the Contractor accordingly. Test rolling equipment shall conform to the following description:

1. Tandem axle, dual wheel dump truck.

2. Tire pressure shall be no less than ninety percent (90%) of manufacturer’s recommended maximum inflation.

3. Minimum gross weight of loaded truck shall be 60,000 pounds.

4. Provide weigh slip to the Engineer.

Perform test rolling procedure as follows:

1. Operate equipment at a rate not to exceed three (3) mph to five (5) mph or a comfortable walking pace.

2. Adjust speed to allow the Engineer to measure any deflections and areas of rutting.

3. Operate test rolling equipment in a pattern so that affected areas are loaded with at least one (1) pass.

4. After test rolling, check subgrade for conformance to drawings, and correct any surface irregularities. Re-shape subgrade within tolerances specified.

Test Rolling Evaluation:

1. Rutting up to one inch (1″) is acceptable.

2. Rutting in excess of one inch (1″) but not more than six inches (6″) shall be considered a failure and shall require reworking soil and compaction to required density.

3. Deflection (pumping) up to one inch (1″) is acceptable.

4. Deflection in excess of one inch (1″) but not more than two inches (2″) shall be acceptable if there is not substantial cracking or lateral movement of soil.

5. Deflection in excess of two inches (2″) but not more than six inches (6″) shall be considered a failure and shall require reworking soil and compaction to required density.

6. Rutting and deflection in excess of six inches (6″) will require review and recommendation for corrective action by the Engineer.

7. After remedial work is performed, a final test roll shall be performed upon completion of work.

8. If remedial work is performed as directed, a second test roll may be waived at discretion of the Engineer.

When performing Subgrade Preparation, if it is determined that the material composition is acceptable and excessive moisture has rendered the material unstable, the Contractor shall perform air drying techniques as per Article 301.04 before consideration of removal of the material.

Modify Article 301.11 Method of Measurement as follows: Subgrade preparation will not be measured for payment.

Modify Article 301.12 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work. The cost of reworking due to rutting and/or deflection less than six inches (6”) shall be included and no additional compensation allowed.

AGGREGATE BASE COURSE

Description: This work includes placing and compacting an aggregate base course. Work shall conform to Section 351 Aggregate Base Course of the Standard Specifications except as modified herein.

Modify Article 351.05 Base Course as follows: Type B aggregate base course shall be used.

Modify Article 351.11 Method of Measurement as follows: Aggregate base course will not be measured for payment.

Modify Article 351.12 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

TRENCH BACKFILL

Description: This work includes select backfill below and within two feet (2’) of the edge of pavement including HMA and PCC. Work shall conform to Section 208 Trench Backfill of the Standard Specifications except as modified herein.

Modify Article 208.03 Method of Measurement as follows: Trench backfill will not be measured for payment.

Modify Article 208.04 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

HOT MIX ASPHALT (HMA) PAVING

Description: This work consists of constructing HMA pavement on a prepared aggregate base.

Work shall conform to Section 406 Hot-Mix Asphalt Binder and Surface Course of the SSRBC except as modified herein.

Add the following to Article 406.02 Materials: HMA for Binder Course shall be IL-19.0, N50 or approved equal at the thickness given on the plans.

HMA Surface Course shall be IL-9, Mix “D”, N50 or approved equal at the thickness given in the plans.

Add the following to Article 406.06 Placing: Slopes shall meet Universal Accessibility requirements.

The longitudinal slope of pavement shall not exceed 5%. The transverse (cross) slope shall not exceed 2%. Transitions from existing to new pavement surface shall be smooth; new pavement shall match the elevation of existing pavement.

Modify Article 406.13 Method of Measurement as follows: HMA paving will be measured for payment in square yards. Binder and surface course will not be measured separately but shall be considered as one. Bituminous material will not be measured for payment and shall be considered incidental.

Modify Article 406.14 Basis of Payment as follows: This work will be paid for at the contract unit price per square yard of finished surface, inclusive of binder and surface courses, bituminous material, and aggregate base course of the thicknesses specified.

WOOD CHIP TRAIL

Description: This work consists of construction of natural wood chip surface trails.

Materials: Wood chips shall be from clearing and selective clearing operations. Wood chips shall not exceed six inches (6”) in any dimension, and shall be subject to Engineer’s review and approval.

Coarsely shredded material will not be accepted. Logs from clearing and selective clearing operations may be used to line trails with the Engineer’s approval.

Execution: Construct new wood chip trails as shown on the plans and as approved by the Engineer in the field. With the Engineer’s approval, excess wood chips from clearing and selective clearing may also be spread on existing trails to remain.

Method of Measurement: This work will not be measured for payment.

Basis of Payment: This work will not be paid for separately but shall be included in the various items of work.

PORTLAND CEMENT CONCRETE (PCC) CONSTRUCTION

Description. This work shall include all Portland cement concrete (PCC) construction. PCC pavement shall conform to Section 420 Portland Cement Concrete Pavement of the Standard Specifications except as modified herein. PCC structures shall conform to Section 503 Concrete Structures of the Standard Specifications except as modified herein.

Modify Article 420.04 Preparation of Subgrade or Subbase as follows: After completing subgrade preparation, install aggregate base as shown on the plans.

Modify Article 420.05 Joints as follows: Joints shall be as shown on the plans and/or as approved by the Engineer.

Modify Article 420.19 Method of Measurement. PCC Paving will not be measured for payment.

Modify Article 420.20 Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

Modify Article 503.21 Method of Measurement. This work will not be measured for payment.

Modify Article 503.22 Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

PORTLAND CEMENT CONCRETE (PCC) SIDEWALK

Description. This work shall consist of constructing Portland cement concrete (PCC) sidewalks and curb ramps. Work shall conform to Section 424 Portland Cement Concrete Sidewalk of the Standard Specifications except as modified herein.

Modify Article 424.04 Subgrade Preparation as follows: After completing subgrade preparation, install aggregate base as shown on the plans.

Modify Article 424.12 Method of Measurement. PCC sidewalk will not be measured for payment.

Modify Article 424.13 Basis of Payment. This work will not be paid for separately but shall be included in the various items of work.

GUARD RAIL

Description: This work consists of furnishing and installing guard rail and appurtenances. Work shall include the following.

1. Steel Plate Beam Guardrail, Type A, 6 Foot Posts. All work shall conform to the requirements of Section 630 Steel Plate Beam Guardrail of the Standard Specifications except as modified herein.

2. Long-Span Guardrail over Culvert, 25 Feet Span. All work shall conform to the requirements of Section 630 Steel Plate Beam Guardrail of the Standard Specifications except as modified herein.

3. Traffic Barrier Terminal, Type 1 (Special) Tangent. All work shall conform to the requirements of Section 631 Traffic Barrier Terminals of the Standard Specifications except as modified herein.

4. Guardrail Markers, Type A and 1 each Terminal Marker-Direct Applied. All work shall conform to the requirements of Section 782 Reflectors of the Standard Specifications except as modified herein.

5. Retroreflective Flex Post shall be as noted on the plans and include a butyl adhesive pad or other approved mounting.

6. Bike route directional signage shall be as noted on the plans. The MUTCD minimum mounting height is seven feet (7’) from pavement surface to the bottom of the W1-6 sign.

Work shall conform to the requirements of Sections 720 and 729 of the SSRBC except as modified herein.

Method of Measurement: This work will not be measured for payment.

Basis of Payment: This work will not be paid for separately but shall be included in the various items of work.

BOX CULVERTS

Description. This work shall consist of constructing precast concrete box culverts. All work shall conform to Section 540 of the Standard Specifications except as modified herein.

Materials. Precast box culvert sections shall conform to the requirements of Article 1042.05 of the Standard Specifications and the IDOT Standard Details included on the plans. Contractor shall provide shop drawings for precast materials.

Concrete backfill above box culverts shall be as necessary to achieve specified slope on 5” reinforced concrete walk shall be Class SI concrete.

Modify Article 540.07 Method of Measurement as follows: This work will not be measured for payment. Aggregate bedding and backfill, grouting, expansion bolts, and concrete backfill above box culverts will not be measured for payment and shall be considered incidental.

Modify Article 540.08 Basis of Payment as follows: This work will not be paid for separately but shall be included in the various items of work.

LIMESTONE OUTCROPPING WALLS AT BRIDGES

Description: This work shall consist of constructing dry laid outcropping stone wingwalls at box culvert pedestrian bridges.

Materials: Outcropping stone shall be Edenstone, Lannonstone, or approved equal. The stones shall have a minimum depth (back to front in place) of 1.5 feet, a nominal depth of 2.0 feet.

Minimum width (left to right in place) of 3.5 feet a nominal width of 5.0 feet. Stones shall not be less than 9 inches thick with a nominal thickness of 12 inches or more. The face of the stones shall be weathered. Split face and machine cut stone will not be accepted. Contractor shall obtain Engineer’s review and approval of outcropping stone prior to its incorporation into the work.

Provide a minimum of 48-hour notice for inspection.

Geotextile fabric shall be nonwoven filaments of polyolefins or polyesters meeting the requirements of Article 1080.03 for use with RR4 and RR5.

Requirements: Complete excavation to allow construction of outcropping stone to the lines, dimensions, and grades shown on the plans.

Compact existing subgrade upon which outcropping stone grade control structure is to be constructed.

Place geotextile fabric as shown on the plans. Geotextile fabric shall be installed in conformance with Articles 282.03 through 282.07 of the Standard Specifications.

Place bedding and backfill aggregate as shown on the plans. Compact bedding before placement of outcropping stone.

Install outcropping stone to the lines, grades, and depths shown on the plans, and as directed by the Engineer. Outcropping stone shall be individually placed and adjusted to form tight joints between stones. Ends of individual stones shall be staggered between rows to create a random appearance. Shim the back side of the outcropping stone with wedges of stone and/or expandable foam to minimize unstable layers. Remove and replace broken, chipped, discolored, unstable, rocking, and undersized stones at the request of the Engineer.

Method of Measurement: This work will not be measured for payment.

Basis of Payment: This work will not be paid for separately but shall be included in the various items of work.

OUTCROPPING SHORELINE TREATMENT

Description: This work consists of construction of rock-filled gabion baskets and placement of outcropping stone.

Materials: Geotextile fabric shall be nonwoven filaments of polyolefins or polyesters meeting the requirements of Article 1080.03 of the Standard Specifications for use with RR4 and RR5.

Gabion baskets shall conform to the requirements of Article 1006.35 of the Standard Specifications.

Wire fasteners for gabion baskets shall conform to the requirements of Article 1006.36 of the Standard Specifications.

Rock for gabion baskets shall be Class A3 conforming to Article 1005.01 of the Standard Specifications.

Outcropping stone shall be Edenstone, Lannonstone, or approved equal. The stones shall have a minimum depth (back to front in place) of 1.5 feet, a nominal depth of 2.0 feet. Minimum width (left to right in place) of 3.5 feet a nominal width of 5.0 feet. Stones shall not be less than 9 inches thick with a nominal thickness of 12 inches or more. The face of the stones shall be weathered.

Split face and machine cut stone will not be accepted. Contractor shall obtain Engineer’s review and approval of outcropping stone prior to its incorporation into the work. Provide a minimum of 48-hour notice for inspection.

Requirements: Compact subsoil upon which gabion baskets are to be constructed prior to placement of geotextile fabric.

Place geotextile fabric as shown on the plans. Geotextile fabric shall be installed in conformance with Articles 282.03 through 282.07 of the Standard Specifications.

Construct gabion baskets to the lines, grades, and depths shown on the plans and as directed by the Engineer. Gabion baskets shall be installed in conformance with Articles 284.03 through 284.06 of the Standard Specifications. Gabions shall be installed with a constant uniform slope along the channel as shown on the plans. Variations greater than 0.1’ in elevation in 10’ length will not be accepted. Create a smooth uniform curve along the face of the gabions.

Install outcropping stone to the lines, grades, and depths shown on the plans and as directed by the Engineer. Outcropping stone shall be individually placed and adjusted to form tight joints between stones. Ends of individual stones shall be staggered between rows to create a random appearance. Shim the back side of the outcropping stone with wedges of stone and/or expandable foam to minimize unstable layers. Remove and replace broken, chipped, discolored, unstable, rocking, and undersized stones at the request of the Engineer. Install outcropping stone with a constant uniform slope along the channel as shown on the plans. Create a smooth uniform curve along the face of the wall.

Complete backfill operations after constructing gabion baskets and placing outcropping stone.

Respread minimum 6” depth topsoil in all areas to be seeded or planted. Trim excess geotextile fabric.

Method of Measurement: This work will not be measured for payment.

Basis of Payment: This work will not be paid for separately but shall be included in the various items of work.

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