Special Provisions 2514 Ward Mine Reclamation Project~1.pdf

ILLINOIS DEPARTMENT OF NATURAL RESOURCES (IDNR)

PROJECT REQUIREMENTS & SPECIFICATIONS

Project Name: WARD MINE RECLAMATION PROJECT Project Number: AML-IFrE-2514 Project Location(s): Franklin County, Illinois specifically located on E. Taylor Street in Benton.

PROJECT NARRATIVE:

The project will reclaim mine hazards including filling and sealing of two vertical shafts, removal of scattered mine debris, and re-alignment of an existing driveway.

SCOPE OF WORK:

The work will include the opening of two vertical mine shafts, filling & sealing of the shafts, pavement removal, re-alignment of an existing asphalt driveway, tree planting, seeding and other miscellaneous appurtenance work.

Appendix A contains the plans for this project.

Project Requirements:

EXISTING PAVEMENTS

Existing on-site roadways may be used for construction traffic. The Contractor shall provide temporary additional roads needed for required construction access, maintain existing roads throughout construction, and restore to original or better condition at completion of work.

BASE AND TOPPING MATERIALS

For temporary construction which will be removed when no longer needed for construction purposes, and all affected areas restored to original or better condition at the completion of work, the selection of these materials is at the Contractor's option, unless otherwise specified.

FIELD ENGINEERING

The Contractor shall provide and pay for all field engineering services required for the project, including:

1. Lay-out and field stake the project’s construction limits, unless otherwise specified on the plans, to the satisfaction of the Engineer.

2. Survey work required in execution of the project.

3. Civil, structural or other professional engineering services specified, or required to execute the Contractor's construction methods.

Survey Reference Points:

Existing basic horizontal and vertical control points for the project are identified on the plans and will be identified by the Engineer for the Contractor’s use. The Contractor shall locate and protect control points prior to starting site work and preserve all permanent reference points during construction. The Contractor shall protect any identified property corners during construction.

Project Survey Requirement:

The Contractor shall use established benchmarks on-site as identified on the plans.

The Contractor shall establish construction limits, lines and levels, locate and lay-out by instrumentation and similar appropriate means, all site improvements. From time to time, the Engineer may verify layouts by same methods.

Initial, periodic, and final cross-sectioning of borrow areas for payment may be performed by the Engineer.

Records:

The Contractor shall maintain complete, accurate records, computations and field books of all control and survey work as it progresses. These shall be kept on-site for use of and reference by the Engineer.

Submittal:

The Contractor is required to use a professional land surveyor licensed in the State of Illinois. The Contractor shall submit the name, address, and a copy of the surveyor’s license prior to beginning surveying work.

OWNER OCCUPANCY

Owners will occupy premises during entire construction period for conduction of their normal operations. The Contractor shall cooperate with Owners in scheduling operations to minimize conflict and to facilitate Owner's usage.

Project Specifications:

Those Sections and Articles of the "Standard Specifications for Road and Bridge Construction," adopted January 1, 2022, by the Illinois Department of Transportation (IDOT); as amended and supplemented by the "Supplemental Specifications and Recurring Special Provisions," adopted January 1, 2025 (hereinafter referred to collectively as "Standard Specifications"), that are referenced in these bid documents are incorporated by reference. (The Standard Specifications are available on-line at IDOT’s web site or can be purchased from IDOT.)

In the application of the Standard Specifications to this Contract, references to the Department of Transportation shall be interpreted to mean the Illinois Department of Natural Resources; Office of

Mines and Minerals; Abandoned Mined Lands Reclamation Division (AMLRD).

The following Sections of the IDOT Standard Specifications have been modified for this project by the AMLRD and are included below and on the following pages and govern contract work at or on this project:

SECTION 101 DEFINITION OF TERMS…………………………………………………………………………………… 4

SECTION 107 LEGAL REGULATIONS AND RESPONSIBILITY TO PUBLIC……………………………………5

SECTION 201 CLEARING, TREE REMOVAL AND PROTECTION, CARE AND

REPAIR OF EXISTING PLANT MATERIAL……………………………………………………….…. 8

SECTION 202 ABANDON MINE SITE EXCAVATION……………………………………………………………….. 9

SECTION 204 BORROW AND FURNISHED EXCAVATION ……………………………………………………….12

SECTION 215 SPECIAL EXCAVATION …………………………………………………………………………………….13

SECTION 216 MINE OPENING FILLING AND SEALING…………………………..………………………………..15

SECTION 218 DIRECTIONAL BORING…………………………..…………………………………………………………18

SECTION 253 PLANTING WOODY PLANTS……………………………………………………………………………. 20

SECTION 258 MOWING………………………………………………………………………………………………………..20

SECTION 280 TEMPORARY EROSION AND SEDIMENT CONTROL………………………………………….. 21

SECTION 406 HOT-MIX ASPHALT SURFACE AND BINDER COURSE….……………………………………..22

SECTION 425 PORTLAND CEMENT CONCRETE CAP……………………………………………………………….24

SECTION 440 REMOVAL OF EXISTING PAVEMENT AND APPURTENANCES…………………………….27

SECTION 501 REMOVAL OF EXISTING STRUCTURES…………………………………………………………….. 28

SECTION 542 PIPE CULVERTS……………………………………………………………………………………………….30

SECTION 562 WATER SERVICE LINE.…………………………………………………………………………………….30

SECTION 616 TEMPORARY CROSSINGS…………………………………………………………………………..……31

SECTION 665 TEMPORARY SAFETY FENCE…………………………………………………………………………...32

SECTION 666 MINE OPENING MARKER ……………………………………………………………………………….33

SECTION 671 MOBILIZATION (Max 6% of Bid)…………………………………………………………………….. 34

APPENDIX A PLANS……………………………………………………………………………………………………………. 36

SPECIAL PROVISIONS

AMLRD SUPPLEMENTAL SPECIFICATION FOR

SECTION 101. DEFINITION OF TERMS

Whenever in these specifications or in other contract documents the following terms or pronouns in place of them are used, the intent of meaning shall be interpreted as follows:

101.03 Award. Revise as indicated:

The decision of the Illinois Department of Natural Resources; Office of Mines and Minerals;

Division of Abandoned Mined Lands Reclamation to accept the proposal of the lowest responsible bidder for the work, subject to the execution and approval of a satisfactory contract therefore and bond to secure the performance thereof, and to such other conditions as may be specified or otherwise required by law.

101.14 Department. Revise as indicated:

The Department of Natural Resources of the State of Illinois with its principal offices of business at Springfield.

101.16 Engineer. Revise as indicated:

The Director of the Department of Natural Resources of the State of Illinois; or his authorized representative limited by the particular duties entrusted to him.

101.35 Right of Way. Revise as indicated:

Right of way shall be replaced by construction limits, except when used in conjunction with right of way markers or highways.

101.39 Roadway. Revise as indicated:

Roadway shall be replaced by site. Slope limits of embankments will be replaced by proposed lines and grades.

101.56 Gob. Add the following:

Coarse textured mine waste material, generally acidic, from a coal cleaning process. This material is composed of rock, shale, pyritic material and varying amounts of coal. The material varies considerably in its moisture content, texture, stable angle of repose and bearing capacity.

101.57 Mine Spoil. Add the following:

A mixture of various soil and rock material as a result of the removal of overburden to expose the coal in surface mining. The material varies considerably in its' moisture content, texture, stable angle of repose and bearing capacity.

End of Revisions to SECTION 101.

AMLRD SUPPLEMENTAL SPECIFICATION FOR

SECTION 107. LEGAL REGULATIONS AND RESPONSIBILTY TO PUBLIC

Article 107.27 Insurance. (delete and replace with the following)

The Contractor shall obtain and thereafter keep in force the following insurance coverage provided by insurance companies acceptable to the Department and authorized to transact business under the laws of the State of Illinois. The insurance companies providing coverage shall be rated in the Best's Key Rating Guide. The Department will accept companies with a rating not lower than B+ provided the financial size category is VII or larger. Companies rated A- or better shall have a financial size category of not less than VI. Coverage limits shall be written at not less than the minimum specified in this Article. Higher minimum limits and additional coverage may be specified by a special provision elsewhere in the contract. Whether stated in this Article or elsewhere, the Department does not warrant the adequacy of the types of insurance coverage or the limits of liability specified.

(a) Workers Compensation and Employers Liability.

(1) Workers compensation shall be provided in accordance with the provisions of the Illinois Worker's Compensation Act, as amended. Notwithstanding the rating and financial size categories stated in this Article, coverage may be provided by a group self-insurer authorized in Section 4(a) of the Act and approved pursuant to the rules of the Illinois Department of Insurance.

(2) Employers Liability

a. Each Accident $500,000

b. Disease - policy limit $500,000

c. Disease - each employee $500,000

(b) Commercial General Liability.

Required liability insurance coverage shall be written in the occurrence form and shall provide coverage for operations of the Contractor; operations of Sub-Contractors (contingent or protective liability); completed operations; broad form property damage and hazards of explosion, collapse and underground; and contractual liability. The general aggregate limit shall be endorsed on a per project basis.

(1) General Aggregate Limit $2,000,000

(2) Products - Completed Operation Aggregate Limit $2,000,000

(3) Each Occurrence Limit $1,000,000

The coverage shall provide by an endorsement in the appropriate manner and form, the Department, to its officers, agents and employees and Brown and Roberts, Inc. shall be named as additional insureds with respect to the policies and any umbrella excess liability coverage for occurrences arising in whole or in part out of the work and operations performed. The Department may accept a separate owner's protective liability policy in lieu of the Department, it's officers, and employees being insured on the Contractor's policy.

(c) Owners and Contractor’s Protective (OCP) Liability.

The Contractor shall provide an OCP policy covering the property owner(s) of the site where the work is to be performed. In the case of multiple owners, all the landowners may be listed as additional insurers on the same policy.

This project will require OCP Policy coverage for _6_ property owners, including The City of Benton and Benton Township.

If the Contractor chooses to put the Department on an OCP (in lieu of placing the Department as an additional insured on the Commercial General Liability - see (b) above), then the Department should be listed as the insured, with all landowners listed as additional insured(s). The amounts of insurance shall be as follows:

BODILY INJURY LIABILITY PROPERTY DAMAGE LIABILITY

Each Occurrence Each Occurrence Aggregate $1,000,000 $500,000 $1,000,000 or

COMBINED SINGLE LIMIT $1,000,000

The required OCP policy shall contain the following endorsement:

"Each named insured shall be provided full coverage under this policy without regard to the fact that such named insured is not in contractual privity with the Contractor. It is understood that the construction operations are performed for and on behalf of the Department, with the consent of the property owner(s)-insured(s). Coverage under this policy with respect to liability arising out of operations shall not be denied to any named-insured because of his passive relationship to the Contractor".

When any named insured is a corporation, insurance coverage under the OCP policy shall extend to the Corporation, its officers, agents, and employees.

(d) Commercial Automobile Liability.

The policy shall cover owned, non-owned and hired vehicles.

BODILY INJURY & PROPERTY DAMAGE LIABILITY

Each Occurrence $1,000,000

(e) Umbrella Liability.

Any policy shall provide excess limits over and above the other insurance limits stated in this Article. The Contractor may purchase insurance for the full limits required or by a combination of primary policies for lesser limits and remaining limits provided by the umbrella policy.

When work is to be performed within railroad right-of-ways, the requirements of Article 107.11 of the Standard Specifications will also apply.

All insurance shall remain in force during the period covering occurrences happening on or after the effective date and remaining in effect during performance of the work and at all times thereafter when the Contractor may be correcting, removing or replacing defective work until notification of the date of final inspection. Termination or refusal to renew shall not be made without 30 days prior written notice to the Department by the insured(s) and the policies shall be endorsed so as to remove any language restricting or limiting liability concerning this obligation.

Certified copies of the original policies or certificate(s) of insurance by the insurer(s) issuing the policies and endorsements setting forth the coverage, limits and endorsements shall be filed with the Department before the Department will execute the contract. A certificate of insurance shall include a statement that, "the coverage and limits conform to the minimums required by Article 107.27 of the Standard Specifications for the Road and Bridge Construction". Any exception or deviation shall be brought to the attention of the Department for a ruling of acceptability. In no event shall any failure of the Department to receive polices or certificates or to demand receipt be construed as a waiver of the Contractor's obligation to obtain and keep in force the required insurance.

All costs for insurance as specified herein will be considered as included in the cost of the contract. The Contractor shall, at its own expense and risk of delay, cease operations if the insurance required is terminated or reduced below the required amounts of coverage. Coverage in the minimum amounts set forth herein shall not be construed to relieve the Contractor from its obligation to indemnify in excess of the coverage in accordance with the contract.

End of Revisions to SECTION 107

DIVISION 200 - EARTHWORK, LANDSCAPING, AND EROSION CONTROL

SECTION 201: CLEARING, TREE REMOVAL AND PROTECTION, CARE AND REPAIR OF EXISTING

PLANT MATERIAL - (revise and add the following as indicated)

Article 201.01 Description - (add the following)

(f) Trash and Debris Removal -- Trash and debris removal shall consist of the removal and disposal of all trash and debris that is within the area to be graded inside the construction limits to an approved landfill off-site.

Article 201.09 Disposal of Materials - (delete and replace with the following)

This work shall be done in accordance with Article 202.03 of these Special Provisions.

Article 201.10 Method of Measurement - (delete paragraphs (b) through (d) and replace with the following)

All Clearing, Tree Removal, protection care and repair of existing plant material and Trash and/or Debris Removal that is necessary to perform the grading work within the construction limits shall be classified as SPECIAL CLEARING and will not be measured for payment. Any of these items associated within the designated areas of Special Excavation shall not be considered here, but shall be covered under Section 214 - Special Excavation.

Clearing of trees may only occur from October 16 to March 31.

Any special areas of trees within the construction limits to be preserved will be specified in the plans and shall not be removed unless approved by the Engineer.

All trees outside the construction limits shall not be disturbed.

Article 201.11 Basis of Payment - (delete all and replace with the following)

All Tree Removal, Protection of Existing Plant Material, Care of Existing Plant Material and Trash/Debris Removal within the construction limits shall be paid for at the contract lump sum price for SPECIAL CLEARING. No payment for any of the items associated within the limits of Special Excavation will be made. Payment for those shall be in accordance with Section 215 -

SPECIAL EXCAVATION.

End of Revisions to SECTION 201: CLEARING, TREE REMOVAL AND PROTECTION, CARE AND REPAIR

OF EXISTING PLANT MATERIAL

SECTION 202: EARTH AND ROCK EXCAVATION - (delete entire section and replace with the

SECTION 202: ABANDONED MINE SITE EXCAVATION

Article 202.01 Description

Abandoned mine site excavation shall consist of the excavation, removal and satisfactory disposal of materials taken from within the construction limits for the reshaping and disposal of mine refuse; the covering of mine refuse with soil; the construction of embankments, ditches, waterways, entrances, field roads and incidental work.

Construction Requirements

Article 202.02 Clearing, Tree Removal, Hedge Removal

Prior to starting excavation operations in any area, all clearing, tree removal, hedge removal and trash and debris removal in that area shall be performed according to Section 201 - Clearing, Tree Removal, and Protection, Care and Repair of Existing Plant Material.

Article 202.03 Removal and Disposal of Surplus, Unstable and Unsuitable Materials and Organic

Waste

The Contractor, at his/her own expense, shall dispose of all surplus, unstable and unsuitable materials, including those which result from the work included in Section 201 and 501 of these Special Provisions, and Section 440 of the Standard Specifications in such a manner that public or private property will not be damaged or endangered.

Whenever possible, stones and boulders naturally occurring within the construction limits shall be placed in fills or embankments in layers and compacted, in accordance with Section 205 of these Special Provisions. Broken concrete without protruding metal bars, bricks, rock, stone, or uncontaminated dirt or sand generated from construction or demolition activities may be used in embankment or in fill. These materials shall be placed as approved by the Engineer;

shall be compacted to the satisfaction of the Engineer; shall be buried under a minimum of 900 millimeters (3 feet) below finished grade unless specified otherwise in the plans (except when the materials include only uncontaminated dirt and sand); and shall not create an unsightly appearance or detract from the natural topographic features of an area. Broken concrete without protruding metals bars, bricks, rock, or stone may be used as riprap as approved by the Engineer. If the materials are used for fill in locations within the mine site but outside project construction limits the Contractor must specify to the Engineer, in writing, how the landscape restoration of the fill areas will be accomplished. Placement of fill in such areas shall not commence until the Contractor's landscape restoration plan is approved by the Engineer.

Aside from broken concrete without protruding metal bars, bricks, rock, stone, or uncontaminated dirt or sand used in embankment, for fill, or for riprap, as appropriate, all other construction and demolition debris or waste shall either be disposed of in a licensed landfill, or recycled, reused, or otherwise disposed of as allowed by State or federal solid waste disposal laws and regulations and solid waste determinations of the Illinois Environmental Protection Agency (IEPA).

Trees and vegetative items resulting from special clearing are to be chipped and made available to landowners or removed from the project site and disposed of at an IEPA approved disposal site.

When specified, surplus excavated material, including excavated stable and suitable material from special excavation, sewer trenches or other underground construction, shall be used to increase soil cover thickness, construct embankments, flatten slopes, or be disposed of otherwise within the project construction limits as approved by the Engineer. Surplus excavated material shall not be disposed of by the Contractor outside of the construction limits.

All unstable and unsuitable material, including excavated material from special excavation, sewer trenches, or other underground construction shall be excavated or removed and replaced with material acceptable to the Engineer. Unstable and unsuitable material shall not be used in embankments. If unsuitable material is present at or below the finished grade, it shall be removed and replaced with suitable material, in accordance with Articles 205.04 and

205.05 of these Special Provisions. Unsuitable material shall be placed or disposed of by the Contractor at his/her own expense outside of the construction limits as specified herein.

Article 202.04 Grading the Site

The Contractor shall excavate earth materials to the lines, grade, cross-sections and elevations shown on the plans or designated by the Engineer. Mine Refuse shall be graded, hauled to, and/or incorporated into the configuration as shown on the plans. Cover material shall be graded, excavated, hauled, and/or placed to the configuration as shown on the plans. Cover material shall be uniformly spread in layers not to exceed nine inches individually to the total depth specified in the plans. All mine refuse, grading, and/or excavation shall be completed prior to applying cover material.

The mine refuse is to be excavated to the lines, grade, cross-sections and elevations shown on the plans or designated by the Engineer. If mine refuse remains below those lines, grade, cross-sections and elevations and was not specified for soil cover on the plans or by the Engineer, then after receiving written approval of the Engineer the Contractor shall excavate the remaining mine refuse to a depth of two feet below the adjacent proposed grade or to soil, which ever occurs first. The area affected by the additional mine refuse excavation shall be backfilled with soil to original plan proposed grade or to the lines, grades, elevations specified by the Engineer. All additional mine refuse excavation and earth excavation necessary due to encountering these conditions will be paid for at the contract unit price for Mine Refuse Excavation and Earth Excavation as described herein.

Article 202.05 Classification

Abandoned mine site excavation shall be classified as mine refuse excavation or earth excavation.

Mine Refuse Excavation - All excavation of mine refuse materials as defined by Articles 101.56 and 101.57 of these Special Provisions.

Earth Excavation - Excavation of any earth materials except mine refuse as defined in Articles

101.56 and 101.57 of these Special Provisions. Excavation required for constructing newly realigned access road to Main Shaft shall be classified as Earth Excavation.

Article 202.06 Construction of Ditches and Waterways

Ditches and waterways shall be constructed and maintained to the lines, grades and cross-sections shown on the plans. Ditches and waterways so constructed shall be kept free from debris until acceptance. All suitable materials excavated from inlet, outlet and intercepting ditches, and waterways within the construction limits shall be used for cover soil as far as practicable. Roots, stumps and other objectionable material in the slopes or bottoms of ditches shall be removed and the holes backfilled with suitable material.

Article 202.07 Drainage

The site shall be maintained so that it will be well drained at all times. If, during the prosecution of the work, it is necessary to interrupt existing sewer or under drainage, temporary drainage facilities shall be provided until the permanent drainage work has been completed. Such temporary drainage facilities will be paid for in accordance with the Provisions of Article 109.04 of the Standard Specifications, unless otherwise provided for in the contract.

The Contractor shall be responsible for, and shall take all necessary precautions to preserve and protect all existing tile drains, sewers and other sub-surface drains or parts thereof which may be affected by his operations, and which may be continued in use without change. He shall repair, at his own expense, any and all damage to such drainage facilities resulting from negligence on his part.

Article 202.08 Method of Measurement

(a) Contract Quantities:

When the project is constructed essentially to the lines, grades or dimensions shown on the plans and the Contractor and the Engineer have agreed in writing that the plan quantities are accurate, no further measurement will be required and payment will be made for the quantities shown in the contract for the various items involved except that if errors are discovered after work has been started, appropriate adjustments will be made.

When the plans have been altered or when disagreement exists between the Contractor and the Engineer as to the accuracy of the plan quantities, either party shall, before any work is started which would affect the measurement, have the right to request in writing and thereby cause the quantities involved to be measured as hereinafter specified.

(b) Measured Quantities:

Mine Refuse Excavation and Earth Excavation will be measured in its original position, and the volume in cubic meters (cubic yards) computed by the method of average end areas. The volume of any unstable or unsuitable material removed, and the volume of the replacement material, will both be measured for payment in cubic meters (cubic yards).

Excavated material used for purposes other than designated in the Specifications, and material excavated beyond slope lines, will not be measured for payment.

Article 202.09 Basis of Payment

Mine site excavation will be paid for at the contract unit prices per cubic meters (cubic yards) for MINE REFUSE EXCAVATION, and EARTH EXCAVATION, measured as specified herein, which prices shall include payment for other items incidental to the work included under the general heading of Earthwork for which no payment item is included in the contract.

End of Revisions to SECTION 202: ABANDONED MINE SITE EXCAVATION

SECTION 204: BORROW AND FURNISHED EXCAVATION - (revise the following articles as indicated)

Article 204.01 Description - (delete and replace with the following)

Borrow excavation and furnished excavation shall consist of excavating, transporting and placing of suitable materials obtained from borrow locations furnished by the Contractor to the areas of the project site shown in the plans. All borrow locations are subject to the environmental review requirements of Article 107.22 and must be approved by the Department prior to disturbance.

Article 204.03 Materials - (Delete this section)

CONSTRUCTION REQUIREMENTS

Article 204.04 Clearing, Tree Removal, and Protection of Existing Plant Material - (add the following sentence)

All clearing, tree removal, and trash and/or debris removal required at the borrow location(s) will be incidental to borrow excavation or furnished excavation and will not be paid for separately.

Article 204.06 Settlement Platforms (delete this section and replace with the following)

Article 204.06 Increased or Decreased Quantities

The right is reserved to increase or decrease the quantities of borrow excavation and furnished excavation required anywhere within the limits of the contract. If additional borrow excavation or furnished excavation is required, it will be paid for at the contract unit price per cubic yard.

Article 204.07 Method of Measurement - (Delete and replace with the following)

Borrow excavation will be measured in its original position by taking cross-sections before the work is started and again after it has been completed. The volume, in cubic meters (cu yd) of material moved, will be computed by the method of average end areas. Material excavated in excess of that required for the execution of the contract will not be measured for payment.

Furnished excavation will be measured for payment as follows:

(a) Contract Quantities. The use of contract quantities shall conform to the requirements of

Article 202.07 (a).

(b) Measured Quantities. Furnished excavation will be measured for payment in place and the volume in cubic meters (cu yd) will be computed by the method of average end areas, and then subtracting the final pay quantity of suitable earth excavation and/or special excavation adjusted by a shrinkage factor of 25 percent or as shown on the plans. Furnished excavation placed in excess of that required for the execution of the contract will not be measured for payment. The volume of suitable furnished excavation will be computed on the basis of using the existing ground line as shown on the plans.

Article 204.08 Basis of Payment - (Delete and replace with the following)

Borrow and furnished excavation will be paid for at the contact unit prices per cubic meter (cubic yard) for BORROW EXCAVATION and FURNISHED EXCAVATION.

End of Revisions to SECTION 204: BORROW AND FURNISHED EXCAVATION

SECTION 215: SPECIAL EXCAVATION - (add this section)

Article 215.01 Description

Special Excavation shall consist of the removal and disposition of any and all materials encountered within the areas of the mine opening(s), sinkholes, voids, or depressions as specified in the plans. Some of these materials include (but are not limited to): materials listed in Section 201 of the Special Provisions, mine related material such as cribbing, stairs, etc., mine refuse, spoil, and/or earth materials.

Article 215.02 Classification

Special excavation shall include all materials encountered within the mine opening(s) as specified in the plans, except water, to be removed prior to filling operations. Excavated material shall be classified by the Engineer prior to handling as:

(a) Unsuitable material to be removed from the site according to Section 201 of the Special Provisions.

The cost of removal and disposal of all unsuitable material off-site shall be considered as incidental to the contract and the cost shall be included in the unit price bid per cubic yard for Special Excavation.

The main shaft support structure shall be hauled off-site.

(b) Suitable fill material is to be used in refilling the special excavation(s) and/or disposed of as specified in the plans.

Article 215.03 Overhaul

No work is classified as overhaul.

Article 215.04 Excavation

(a) All materials shall be excavated from within the concrete lining (collar) or around the mine opening(s) to a configuration and depth as specified in the plans to attain a stable base. The Engineer will determine the configuration and depth of the Special Excavation to attain a stable base in the field.

(b) The concrete lining of the main shaft shall not be removed until after the special excavation of the shaft is filled. It shall then be removed for the construction of the new concrete cap and covered in-place so that it is at least 900 millimeters (three feet) below proposed grade as detailed in the plans.

There is no anticipated lining removal at the east air shaft.

(c) Any holes, voids, or open shafts created by these operations shall be secured by the Contractor to prevent entry upon completion of a day's work. No openings shall be allowed to remain unsecured overnight, weekends, holidays, or any other time when work is not in progress.

(d) If subsidence occurs or mine gas is detected, work shall cease immediately and the Engineer shall be notified.

(e) Any water encountered shall be treated if necessary to meet IEPA Mine Discharge Standards and pumped from the Special Excavation to assure maximum stability. Any cost for this shall be considered incidental and included in the unit price per cubic meter (cubic yard) for Special Excavation.

(f) Prior to shaft filling the base shall be compacted as determined by the Engineer to assure a stable base.

Article 215.05 Method of Measurement

(a) Contract Quantities:

When the project is constructed essentially to the lines, grades or dimensions shown on the plans and the Contractor and the Engineer have agreed in writing that the plan quantities are accurate, no further measurement will be required and payment will be made for the quantities shown in the contract for the various items involved except that if errors are discovered after work has been started, appropriate adjustments will be made.

When the plans have been altered or when disagreement exists between the Contractor and the Engineer as to the accuracy of the plan quantities, either party shall, before any work is started which would affect the measurement, have the right to request in writing and thereby cause the quantities involved to be measured as hereinafter specified.

(b) Measured Quantities:

Special Excavation will be measured as a lump sum pay item. The volume of any unstable or unsuitable material removed, and the volume of the replacement material, shall be considered incidental to this pay item and no consideration for additional payment shall be made.

Excavated material used for purposes other than designated in the Specifications, and material excavated beyond slope lines, will not be measured for payment.

Article 215.06 Basis of Payment

Special Excavation will be paid for at the contract price per lump sum for SPECIAL EXCAVATION, measured as specified herein.

End of SECTION 215: SPECIAL EXCAVATION

SECTION 216. MINE OPENING FILLING AND SEALING (add this section)

Article 216.01 Description

This shall include furnishing all labor, materials, equipment, and services to properly fill the mine opening(s), sinkholes, voids, or depressions, as specified in the plans.

Article 216.02 Material

Material for filling and sealing the mine openings shall meet the following material requirements descriptions or Articles in the Standard Specifications:

Item Article

(a) Portland Cement 1001

(b) Stone for Rockfill / Rockfill 1005.01

(c) Class SI Concrete 1020

(d) Earth

This material shall be soil excavated on-site as specified in the plans and approved by the Engineer. If none is available on-site, the soil material may come from an off-site source and must be approved by the Engineer. This may include material excavated from the shaft that has been approved by the Engineer as suitable fill.

(e) Rubble

This material shall be defined as structure rubble or stone ranging in size from 24 to 36

in. (600 to 900 mm) in any direction. Structure rubble may consist of broken concrete, brick, or stone as designated in the plans and must be approved by the Engineer. Off-site rubble must meet these requirements and must be weighed for measurement to be paid as Rockfill.

Article 216.03 Submittal and Notification

The Contractor shall notify the Engineer at least three days in advance of starting shaft filling operations. The Contractor shall provide the Engineer with all weight tickets, letters of installation of fill material.

Article 216.04 Construction Requirements

(a) Any water pumped or discharged from within the mine openings shall be tested and treated, if necessary, to meet Illinois Environmental Protection Agency (IEPA) Mine Pollution Discharge Standards. Filling into a flooded shaft shall be permitted provided it does not result in a discharge or release of polluted water.

(b) Open shafts, holes, or voids shall not remain unprotected overnight, weekends, holidays, or any other time when work is not in progress. It shall be the Contractor's responsibility to properly secure from entry any portion of the work remaining at the end of a work day.

(c) On shafts with an existing cap to be removed, the Contractor shall notify the Engineer three working days prior to removing the cap so that an inspector can be present to check for methane and to visually inspect the shafts interior.

(d) On shafts where Special Excavation is required, backfilling or plugging operations shall not commence until the Engineer has inspected the excavated shaft area and approved the satisfactory completion of the Special Excavation.

(e) The east air shaft is to be filled with concrete rubble with no rebar protruding from the project work limits. The remainder of the shaft shall be filled with RR4 rip rap up to the bottom of the proposed shaft cap. See detail in plans.

(f) The main shaft is to be filled with concrete rubble with no rebar protruding from the project work limits. The remainder of the shaft shall be filled with RR4 rip rap up to the proposed Portland Cement Concrete Cap. See detail in plans.

(g) On shafts designated to be filled with stone and spanned with a concrete cap, the filling operations shall continue as un-interrupted as possible. Once the shaft has been filled to within 2 ft (600 mm) of the proposed grade, the Contractor shall secure the area with temporary fencing for a 30-day period to allow for settlement. If settlement occurs within that time, the Contractor shall backfill the void with additional aggregate fill material prior to the installation of the concrete cap. The concrete cap shall be constructed and installed in accordance with SECTION 425.

(h) Filling operations shall be a continuous procedure in accordance with the fill type materials as specified in the plans. Earth fill material shall be placed in lifts of 8 to 12

in. (200 to 300 mm), and shall be compacted to the Engineer's satisfaction.

(i) If no cement grout is specified on the plans, once the shaft has been filled to the proposed grade, the Contractor shall monitor the site for a 30-day settlement period.

If settlement occurs within that time the Contractor shall backfill the settled volume with additional fill material.

(j) The Engineer reserves the right to increase or decrease any or all quantities required for this project. If additional materials are needed, they will be paid for at the contract unit prices as specified, which cost shall include transportation and handling.

Article 216.05 Method of Measurement

Stone fill materials will be measured for payment in tons of Rockfill and Off-Site Rubble as Rockfill as specified herein. Measurement shall be on weight tickets or receipts provided to the Engineer.

No measurement will be made for Earth fill or On-Site Rubble fill.

No measurement will be made for any treatment and/or discharge of water from mine openings. This shall be considered incidental to filling mine openings but included in the contract unit prices for fill material.

Concrete caps will be measured for payment in cubic yards in accordance with Article 425.11.

Article 216.06 Basis of Payment

No separate payment will be made for any pumping and/or discharge of water from mine openings.

Stone fill and Off-Site Rubble materials will be paid for at the contract unit price per ton as specified herein for, ROCKFILL, and OFF-SITE RUBBLE FILL, and of the class (stone quality and gradation) specified.

Portland Cement concrete caps will be paid for at the contract unit price per cubic yard for PORTLAND CEMENT CONCRETE CAP in accordance with Article 425.12.

On-site rubble fill will not be paid for directly, but shall be considered as incidental to SECTION 501, and the cost of this work shall be included in the unit price for that item.

Earth fill will not be paid for directly, but shall be considered as incidental to SECTION 202, SECTION 204 and SECTION 215, and the cost of this work shall be included in the unit price for those items.

End of SECTION 216.

SECTION 218. DIRECTIONAL BORING (add this section)

Article 218.01 Description

This bid item shall consist of directional boring at the locations shown in the plans. This bid item shall include all labor, equipment and material required to directional bore into the existing east air shaft and main shaft as indicated on the plans.

Article 218.02 Materials

Materials shall be according to all applicable Sections of the Standard Specifications.

Article 218.03 Construction Requirements – East Air Shaft

This bid item shall include but not be limited to the following:

1. The directional boring with all necessary equipment required to bore from a location sixty

(60) feet east of the air shaft to the air shaft, through the air shaft concrete reinforced wall and into the air shaft with a minimum of an eight-inch hole.

2. The construction of an observation pit twelve (12) feet deep, five (5) feet wide and five (5) feet long, lined with plastic on three sides which will continuously be filled with water.

The observation pit shall be constantly filled with water while the boring pit is penetrating the concrete shaft wall. The drill bit must be submerged at all times.

3. A tanker water truck or tank of water (minimum 1,000 gallons) will be located adjacent to the observation pit with a float-controlled hose which will continually feed water into the observation pit keeping the drill bit submerged at all times when the drill bit is penetrating the shaft wall.

4. During the penetration of the shaft wall and up to 72 hours after penetration a 48” ventilation fan will be furnished and placed ten (10) feet north of the observation pit. This fan will blow vented air from the shaft to the south. The contractor shall be required to furnish all electric power to the fan with a generator.

5. After penetration through the shaft wall the contractor shall furnish all labor equipment and material required to monitor the methane concentration at the eight-inch penetration in accordance with the project “PRECAUTIONS AND PROCEDURES”

6. The information collected as a part of Item 5 above shall be emailed to the construction observer immediately after collection of the information indicated in item 5 above.

Article 218.04 Construction Requirements – Main Shaft

This bid item shall include but not be limited to the following:

1. The directional boring with all necessary equipment required to bore from a location sixty

(60) feet north of the main shaft to the main shaft, through the air shaft concrete reinforced wall and into the air shaft with a minimum of an eight-inch hole.

2. The construction of an observation pit twelve (12) feet deep, five (5) feet wide and five (5) feet long, lined with plastic on three sides which will be continuously be filled with water.

The observation pit shall be constantly filled with water while the boring pit is penetrating the concrete shaft wall. The drill bit must be submerged at all times.

3. A tanker water truck or tank of water (minimum 1,000 gallons) will be located adjacent to the observation pit with a float-controlled hose which will continually feed water into the observation pit keeping the drill bit submerged at all times when the drill bit is penetrating the shaft wall.

4. During the penetration of the shaft wall and up to 72 hours after penetration a 48” ventilation fan will be furnished and placed ten (10) feet southwest of the observation pit.

This fan will blow vented air from the shaft to the northeast. The contractor shall be required to furnish all electric power to the fan with a generator.

5. After penetration through the shaft wall the contractor shall furnish all labor equipment and material required to monitor the methane concentration at the eight-inch penetration in accordance with the project “PRECAUTIONS AND PROCEDURES”

6. The information collected as a part of Item 5 above shall be emailed to the construction observer immediately after collection of the information indicated in item 5 above.

Article 218.05 Method of Measurement

This work will be measured for payment at the contract unit price per lump sum for

DIRECTIONAL BORING (EAST AIR SHAFT) and DIRECTIONAL BORING (MAIN SHAFT).

Article 218.06 Basis of Payment

This work shall be paid for at the contract unit price per lump sum for DIRECTIONAL BORING

(EAST AIR SHAFT) and DIRECTIONAL BORING (MAIN SHAFT) which shall be payment in full to complete this work as directed by the Engineer.

End of Revisions to SECTION 218: DIRECTIONAL BORING.

SECTION 253: PLANTING WOODY PLANTS - (revise the following articles as indicated)

Article 253.02 Materials - (add the following to (a) Trees, Shrubs, and Seedlings... Article 1081.01)

(1) Balled and Bur lapped and Container Grown Plants shall have a minimum diameter of

2.5 inches. Conifers shall have a minimum caliper of 2.5 inches. Deciduous seedlings shall be root and top pruned according to the latest acceptable horticultural practices.

Article 253.15 Plant Care - (delete entire article)

Article 253.16 Method of Measurement - (revise the second and third sentence)

Trees, shrubs, evergreens and pines will be measured as each individual plant in live, healthy condition, in-place, as determined by the Engineer.

End of Revisions to SECTION 253: PLANTING WOODY PLANTS

SECTION 258: MOWING - (add this section)

Article 258.01 Description

This work shall consist of mowing areas designated by the Engineer and as indicated in the plans.

Article 258.02 Equipment

Mowing equipment shall be one of the following:

(a) Tractor drawn rotary mower(s)

(b) Tractor drawn sickle mower(s)

(c) Tractor drawn flail mower(s)

Article 258.03 Construction Requirements

At time and locations designated by the Engineer, the Contractor shall mow vegetation to a height of not more than 150 millimeters (six inches).

Mowing shall not be permitted when the ground is too wet to properly support the equipment used.

Article 258.04 Method of Measurement

Mowing shall be measured in hectare (acre) of surface area mowed.

Article 258.05 Basis of Payment

This work shall be paid for at the contract unit price per hectare (acre) for MOWING.

End of SECTION 258: MOWING

SECTION 280: TEMPORARY EROSION AND SEDIMENT CONTROL - (revise the following articles as indicated)

Article 280.03 General - (delete and replace with the following)

Erosion and sediment control measures as indicated in the Storm Water Pollution Prevention Plan, or as directed by the Engineer shall be installed on the project site prior to beginning any construction activities which will potentially create erodible conditions. Erosion and sediment control devices shall be in place and approved by the Engineer as to proper placement and installation prior to beginning other work. Erosion and sediment control protection for Contractor borrow pits, equipment storage sites, plant sites, haul roads, and other sites shall be installed by the Contractor and approved by the Engineer prior to beginning construction activities at each site.

The Engineer has the authority to limit the surface area of erodible earth material exposed by clearing and grubbing, excavation, borrow and embankment operations, and to direct the Contractor to provide immediate permanent or temporary erosion and sediment control measures upon finding an incidence of non-compliance with the Storm Water Pollution Prevention Plan. The Contractor shall incorporate all permanent erosion and sediment control features into the project at the earliest practicable time to minimize the need for temporary controls.

The Contractor is encouraged to carefully plan his/her operation so that final gradework is performed as close as possible to the seeding dates specified in the contract to minimize the chances of erosion from areas affected by construction.

Areas where construction activities have ceased for more than 14 consecutive days may require site stabilization practices which may include temporary seeding, mulching, or installation of excelsior blanket, straw bales, silt fence, diversion ditches, vegetative buffer strips and/or geotextiles. For purposes of this Section, the end of construction activities on affected land areas is defined as the time when seedbed preparation has been concluded. Site stabilization, if determined necessary by the Engineer, will not be paid for but will be considered incidental to the contract.

In case of repeated failure on the part of the Contractor to take steps prescribed by the Engineer to control erosion and sediment, the Engineer reserves the right to employ outside assistance or to use his/her own forces to provide the necessary corrective measures. Such incurred direct costs plus project engineering costs will be charged to the Contractor and deducted from any compensation due, or which may become due the Contractor under the contract.

Article 280.08 Basis of Payment - (add the following)

Maintenance of temporary erosion and sediment control systems including repair of the various systems, removal of entrapped sediment and cleaning of any silt filter fabric, will be considered incidental to the above pay items for temporary erosion control systems. The sediment shall be removed as directed by the Engineer during the contract period and disposed of on-site as directed by the Engineer.

End of Revisions to SECTION 280: TEMPORARY EROSION CONTROL

DIVISION 400 - SURFACES COURSES, PAVEMENTS, REHABILITATION AND SHOULDERS

SECTION 406: HOT-MIX ASPHALT BINDER AND SURFACE COURSE (revise and add the following as

The following are mixture requirements for the HMA Surface Course:

Location(s): Hot-Mix Asphalt Surface Course

Mixture Use(s): HMA Surface Course, Mix C, N70

AC/PG: PG64-22

ABR % (Max): See Special Provision

Design Air Voids: 4.0 %, 70 Gyration Design

Mixture Composition:

(Gradation Mixture)

IL-9.5 mm

Friction Aggregate: C Surface

Mixture Weight: 112 lbs/Sq Yd/in

Quality Management Program

QC/QA

Sublot Size N/A

The HMA Surface Course shall be constructed in accordance with Section 406 of the Standard Specifications, except that in all areas the use of a centerline stringline for grade control will be mandatory if determined necessary by the Engineer.

The following are mixture requirements for the HMA Binder Course for the Haul Route Roadway Repairs:

Location(s): Hot-Mix Asphalt Binder Course (Haul Route Roadway Repairs)

Mixture Use(s): HMA Binder Course, IL-9.5FG, N70

AC/PG: PG64-22

ABR % (Max): See Special Provision

Design Air Voids: 4.0 %, 70 Gyration Design

Mixture Composition:

(Gradation Mixture)

IL-9.5 mm

Friction Aggregate: C Surface

Mixture Weight: 112 lbs/Sq Yd/in

Quality…