1 Specifications_2505.pdf

ILLINOIS DEPARTMENT OF NATURAL RESOURCES (IDNR)

PROJECT REQUIREMENTS & SPECIFICATIONS

Project Name: Zeigler C.C. #1 Remedial Reclamation Project Project Number: AML-IFrE-2505 Project Location: Franklin County

The project is located in the Northwest corner of Zeigler, IL. The project site is generally located by taking Main Street north past the city square, past the water tower at the north end of Zeigler and to an area that serves as a dump / storage site for Zeigler Public Works. A single family residence (505 Orchard Street) is adjacent to the 2 shafts to be permanently sealed. The site is located in the SE corner of Section 13, T7S, R1E in Franklin County.

PROJECT NARRATIVE:

Zeigler C.C. #1 utilized a material shaft and a main/hoisting shaft that were filled with earth in a reclamation project in 1992. Over time the material has settled and has become unsafe to the residents and the public who might utilize the City’s dump site. This project will permanently seal these 2 shafts using Class SI concrete. Furnished earth materials will be incorporated in the final grading to provide positive drainage. Once final grading is complete, trees and vegetation removed for this work will be replaced with pine trees, soil amendments and permanent seeding.

SCOPE OF WORK:

This project consists of work items as described in detail herein, and within the Plans or Plan Documents and include placing approximately 125 cubic yards of Furnished Excavation, 135 cubic yards of Special Excavation, 154 cubic yards of Class SI concrete and (1.6) acres of Native Seeding and soil amendments.

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 conducting 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 SECTION 107-Legal Regulations and Responsibility to Public SECTION 204- Furnished Excavation SECTION 205-Embankment SECTION 215- Special Excavation SECTION 216- Class SI Concrete SECTION 250- Seeding SECTION 671- Mobilization

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.

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 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 _2_ property owners.

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

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 205: EMBANKMENT - (revise the following articles as indicated)

SECTION 205: MINE SITE COMPACTION

Article 205.01 Description

This work shall consist of the compaction of earth fill area(s) or mine refuse disposal area(s) and cover soil by depositing, placing and compacting mine refuse and earth fill areas and all cover soil over mine refuse except the top 300 millimeters (12 inches) of cover soil.

Article 205.02 Equipment

Equipment shall meet the requirements of the following Articles of Section 1100 - Equipment:

Item Article

(a) Disk Harrow 1101.02

(b) Tamping-Type Roller shall consist of one or more cylindrical sections having studs or feet projecting not less than 162.5 millimeters (six and one-half inches) from the surface of the drum. The number of tamping feet and the area of feet shall be such that the pressure on a single row of feet approximately parallel to the axis of the drum is not less than 1.38 kPa (200 p.s.i.) when supporting the full weight of the roller.

Article 205.03 Preparation of the Subgrade for Earth Cover

Before fill material is placed, all clearing, tree removal and hedge removal over the fill area shall be performed as provided in Section 201 of the Special Provisions, and the top 150 millimeter (six inches) of the existing ground surface shall be disked and then compacted to the satisfaction of the Engineer. If the fill areas are being constructed during the winter, snow and ice shall be removed from the areas to be covered by fill material. Fill material shall not be placed on frozen earth. When construction is resumed after any winter shutdown period, the top 200 millimeters (eight inches) of all partially completed fill areas shall be reprocessed and compacted to the minimum specified density prior to placing more fill material in the areas.

When earth fill area(s) are to be constructed on hillsides or slopes, the existing slopes shall be plowed deeply;

or if additional precautions for binding the fill materials together are justified, steps shall be cut into the existing slopes before the construction of the fill area is started. If the existing surface is within 150 millimeters (six inches) of the elevation of the subgrade or the completed earth surface, it shall be plowed or otherwise broken up to a depth of not less than 150 millimeters (six inches).

When the mine refuse disposal area(s) has been graded to the subgrade shown in the plans, MINE REFUSE

TREATMENT - LIMESTONE shall be performed on the subgrade in accordance with Section 255 of these Special Provisions. The subgrade shall then be compacted with a roller until the tamping feet of the roller penetrate not more than 50 millimeters (two inches) into the subgrade or to the satisfaction of the Engineer.

Article 205.04 Placing Earth Cover Material

Fill material shall be placed in accordance with the following requirements:

(a) General. Fill areas shall be constructed of materials that will compact and develop a stability satisfactory to the Engineer. No sod, frozen material or any material which, by decay or otherwise, might cause settlement, shall be placed or allowed to remain in the fill areas. Fill areas shall be constructed to the height and width deemed necessary to provide for shrinkage during compaction. Upon completion, they shall conform to the lines, grades and cross sections shown on the plans, with proper provision for shrinkage.

When mine refuse disposal areas are constructed of crushed material, broken concrete, stones, or rocks and earth, such materials shall be well distributed, and sufficient earth or other fine material shall be incorporated with them when they are deposited to fill the interstices and provide solid embankment. No rock, stones or broken concrete more than 150 millimeters (six inches) in largest dimension shall be permitted within a vertical distance of 300 millimeters (12 inches) below the surface of the subgrade.

Pieces of concrete, not exceeding two square feet for any area of surface, and large rocks and boulders may be placed in fills without being broken up, provided they are well embedded, and interstices filled with smaller pieces or smaller material in a manner to give a density satisfactory to the Engineer. The layers of the smaller pieces or smaller material shall not exceed 300 millimeters (12 inches) in depth.

So far as practicable, each layer of material shall extend the entire length and width of the mine refuse disposal area. The material shall be leveled by means of bulldozers, blade graders or other equipment approved by the Engineer. Each layer shall be not more than nine inches thick when in loose condition, shall be uniform in cross section, and shall be thoroughly compacted before the next layer is started.

The use of dragline excavators or similar equipment which excavate and deposit material in large unit masses will not be permitted, unless all materials excavated in this manner are spread as provided herein and compacted as required in Article 205.05 of these Special Provisions, or as directed by the Engineer.

Article 205.05 Compaction

Each layer of mine refuse or earth fill material shall be disked sufficiently to break down oversized clods, mix the different materials, secure a uniform moisture content, and ensure uniform density and compaction.

Disking may be omitted if the fill consists of non-cohesive material.

All lifts of earth fill or mine refuse will be considered compacted when the tamping feet of the roller penetrates not more than three inches into a nine-inch lift or one-third of the depth of the layer being placed.

If, after making four passes the required compaction is not yet achieved, the Engineer shall take necessary steps to analyze and test the soil conditions. If tests indicate that the material is above 115 percent or below 90 percent of the standard optimum moisture content then the material shall be dried or wetted as necessary to fall within this range. The layer shall then be recompacted until the desirable results are obtained or an additional four passes are made. If the material is determined to be within the specified optimum moisture content range and four passes have been made, no further compaction efforts are necessary.

All lifts of cover soil shall be compacted except the top 300 millimeters (12 inches). Compaction will not be required on the top 300 millimeters (12 inches) of cover soil.

The fill areas shall be sprinkled with water when it is necessary to increase the moisture content of the soil to permit the fill areas to be constructed to the densities indicated above.

Compacting equipment and compacting operations shall be coordinated with the rate of placing the earth materials so that the required density is obtained.

Article 205.06 Maintaining and Trimming Embankments

The Contractor shall replace, at his own expenses, any portions of the fill areas which have been damaged or displaced by reason of carelessness or negligence on his part. After the fill areas have been constructed as specified herein, their sides shall be trimmed to the proper slopes where required, and they shall be maintained by the Contractor to the proper elevation and cross-section until they have been accepted.

Article 205.07 Method of Measurement

Mechanical compaction will not be measured for payment.

Article 205.08 Basis of Payment

Compaction and any additive or water applied will not be paid for directly, but shall be considered as incidental to the various items of excavation, and the cost of their construction shall be included in the unit prices for these items.

End of Revisions to SECTION 205: MINE SITE COMPACTION

SECTION 215: SPECIAL 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, existing foundation, mine related material such as cribbing, stairs, etc., mine refuse, spoil, and/or earth materials.

Construction Requirements 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.

(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 (collar) of shafts shall not be removed until after the special excavation of the shaft is filled. It shall then be removed or covered in-place so that it is at least 900 millimeters (three feet) below proposed grade.

(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 in its original position, and the volume in 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 215.06 Basis of Payment

Special Excavation will be paid for at the contract unit price per cubic meter (cubic yard) for SPECIAL EXCAVATION, measured as specified herein.

End of SECTION 215: SPECIAL EXCAVATION

SECTION 216: MINE OPENING FILLING AND SEALING

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

(e) Class SI Concrete 1020

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 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) On shafts where a concrete plug is specified, the placement of the concrete shall not exceed a maximum free fall of 4 ft (1200 mm). No fill materials may be placed on top of the concrete plug until it has been allowed to cure for a minimum of 48 hours. After the required curing period has elapsed the Contractor shall place the remaining fill materials in accordance with the plans and specifications.

Article 216.05 Method of Measurement

Class SI Concrete plugs will be measured for payment in cubic yards.

Article 216.06 Basis of Payment No separate payment will be made for any pumping and/or discharge of water.

Class SI Concrete plugs will be paid for at the contract unit price per cubic yard for CLASS SI CONCRETE PLUG.

End of SECTION 216.

SECTION 250: SEEDING

SECTION 250. SEEDING (Delete the entire Section and replace with the following) Article 250.01 Description

This work shall consist of preparing the seed bed and placing the seed and other materials required in the seeding operations. On any slope flatter than 3:1, after rough grading is completed but prior to final grading and seedbed preparation, agricultural lime shall be applied. Then straw shall be blown over the area to be seeded at a rate of 1 ton per acre. The Contractor shall disc the area with an agricultural (or Engineer approved) disc to a depth of 6 inches. The Contractor shall then final grade.

After final grading is completed the following sequence of operations is required:

(a) Create loose seedbed to the depth specified (2-3 inches on flat sections, 1-2 inches depth on slopes) by light discing, harrowing, or Engineer approved methods.

(b) Apply nutrients and seed per specifications

(c) Roll once with a cultipacker or mulching roller

(d) Install Excelsior blanket when specified

(e) Apply mulch per specification, exclude areas of excelsior blanket

(f) Roll once with a cultipacker or straight blade disc/knife over the mulch.

Article 250.02 Materials (Seeds, Agricultural Ground Limestone, Nutrients)

(a) Sampling and Testing. Each lot of seed, or seed mixture, except Prairie Forbs, furnished shall be tested by a State Department of Agriculture (including other states), or by land grant college or university agricultural sections, or by a Registered Seed Technologist. The seed sample shall be sent directly from the dealer to the place of testing. The cost of this testing shall be included in the unit bid price. All seeds shall comply with the requirements of the U.S. Department of Agriculture Consumer and Marketing Service, Rules and Regulations under the Federal Seed Act of August 9, 1939, issued March 1940, reprinted with amendments April 1968, or any current revisions.

Acceptance of seeds furnished under this Specification will be based on receipt and approval of a certification covering tests from each lot of seed. Certification shall consist of test reports showing the required test results of lots corresponding to the shipment and signed by the responsible personnel of a State seed laboratory or college or university seed testing section or a Registered Seed Technologist. A Registered Seed Technologist shall verify his/her signature with his/her Society of Commercial Technologists' seal.

The sample must be tested within 60 days of scheduled seeding and include:

(1) Name of Seed Dealer

(2) Kind and Variety of Seed

(3) Date of Test

(4) Lab Number

(5) Weight Examined by Grams

(6) Lot Number

(7) Pure Seed Crop by Name

(8) Purity Percentage Analysis

(9) Germination Percentage Analysis

(10) Hard Seed Percentage Analysis

(11) Other Crop Names and Percentages

(12) Common Weed Names & Percentages

(13) Percentage of Total Inert Matter

(14) Noxious Weeds and Percentages (if any)

A ten-percent tolerance will be allowed for each specified pure live seed species in the total seed mixture. If test results indicate insufficient pure live seed of any species, additional pure live seed of the same species shall be added prior to seeding, to correct deficiencies to within the ten percent tolerance allowable.

If test results indicate the presence of an Illinois noxious weed, or the seed mixture is found unacceptable by reason of any other defect that in the judgment of the Engineer cannot be corrected, the Contractor shall obtain a new supply of the specified seed mixture. Any areas seeded with an unacceptable seed mixture shall be destroyed, by preparing a new seed bed and reseeding. No additional compensation will be allowed for correcting deficiencies to within the allowable tolerance, for obtaining a new seed supply if required, or for reseeding.

Seeds may be sampled at destination on a random basis and tested for comparison with certification and compliance with the Specifications. If deviations are found, the results will be reviewed to determine whether the material is acceptable for use. Major deviations may result in a requirement that each lot of material from the source in question be sampled, tested and approved by the Illinois Department of Agriculture before further use.

Article 250.03 Equipment (Items specified here shall meet the requirements under IDOT Article 1101.08.)

(1) Rangeland drills, Broadcast Seeders

(2) Spinning Disk Seeders

(3) Cultimulcher / Cultipacker

(4) Harrows - Spike Toothed and Tine Toothed

(a) Spike and tine toothed harrows shall be commercially manufactured harrows designed for light tillage necessary to cover grass and legume seed after these seeds have been broadcast with spinning disk seeders, truck mounted air flow fertilizer/seeder spreaders, and aerial seeders. This does not eliminate the requirement to roll the area with a cultipacker.

Cultimulcher/Cultipacker shall meet the approval of the Engineer.

No-Till Seeder Rangeland Drills & Interseed Attachment:

These shall be commercially manufactured no-till (zero-till) seeders specifically designed for no- till placement of grass and legume seed and shall be approved by the Engineer prior to use. Equipment used for Native seeding shall be a rangeland drill designed to plant multiple species of grasses and grains on sites that require various calibrations of seed to be applied based on the variety of seed and seed size. Small native seeds require specific calibration not common in conventional planting equipment such as spinning wheel/broadcast seeders.

Article 250.04 Fertilizer and Agricultural Ground Limestone Application

(a) Prior to the application of fertilizer nutrients and agricultural ground limestone on the soil and/or coal refuse, the Contractor shall notify the Engineer. Lime source correction factors and nutrient strength data shall be used to determine the actual nutrient applied.

(b) Immediately prior to seed bed preparation and seeding, fertilizer nutrients and (on slopes steeper than 3:1 agricultural ground limestone) shall be uniformly spread at the specified rates over the areas designated.

Specified rates are listed on the plans under Summary of Quantities or Schedule of Seeding, Fertilizer Nutrients, Mulch and Mowing. Operations that damage existing turf shall be repaired/restored at the Contractor’s expense,

(c) When Incorporation - Limestone and Mulch are to be used, as specified in the plans, agricultural ground limestone shall be applied in accordance with SECTION 256. The fertilizer nutrients and shall then be uniformly spread at the rates specified over the incorporated areas and tilled into the soil with the use of a spike toothed or tine toothed harrow as directed by the Engineer. Seed shall be applied, and one pass will be made with an approved cultipacker after the seed is sewn.

(d) No-till (zero-till) Seeding. No-Till (zero-till) seeding will not require seed bed preparation. Agricultural ground limestone shall be applied two weeks (14 days) prior to no-till (zero-till) seeding. Fertilizer nutrients shall be applied two weeks (14 days) after no-till (zero-till) seeding according to the Engineer's discretion. The no-till (zero-till) areas may or may not be mowed prior to or after no-till (zero-till) seeding according to the Engineer's discretion. If the Engineer determines mowing is necessary, it will be measured and paid for according to Articles 250.09 and 250.10, respectively. At no time will the seeder be used as a mulch stabilizer in conjunction with seeding or alone.

(e) Direct Vegetation. If seed bed preparation is required on direct vegetation areas, agricultural ground limestone and fertilizer nutrients shall be applied prior to seeding and according to these specifications. If seed bed preparation is not required or if the Engineer determines it is impractical, the agricultural ground limestone and fertilizer nutrients shall be applied according to the Engineer's discretion.

Article 250.05 Seed Bed Preparation

Seed bed preparation cannot be performed sooner than 14 days prior to seeding. Seed bed preparation will not be required when no-till seeding or Incorporation - Limestone and Mulch is specified. The prepared surface shall be free of rills, vegetative clumps, or other debris. Rocks and objects larger than 6 inches shall be removed. No seed shall be applied until the seedbed has been approved by the Engineer. The final 24 inches of fill shall not be compacted but remain loose.

Article 250.06 Seeding Methods

Apply Excelsior blanket and mulch on the same day the that the seed is sewn. No seed shall be sewn in wind conditions greater than 10 mph. Equipment shall be calibrated to deliver a uniform density and shall cover the entire area.

Interseeding, Native seed species and some Wetland species may require to be sewn by hand due to the small size of the seed. Only mechanical equipment such as a Rangeland drill capable of delivering the seed size uniformly will be used. Hand seeding each species individually is the alternative.

Article 250.07 Seeding Dates and Seed Mixture for Permanent Seeding

Seeding will not be allowed when the wind speed is 10 miles/hour or greater. Seed bed preparation may be allowed by the Engineer prior to seeding dates at his/her discretion. The Contractor may submit a written request to deviate from the Contract seeding dates, but germination success and reseeding guarantee remain.

Temporary seeding for erosion control SEEDING CLASS 7, initiated at the direction of the ENGINEER, shall be performed according to the Standard Specifications for Road and Bridge Construction Article 250.

SOUTHERN ILLINOIS (South of Routes 72/74) Spring seeding dates shall be April 1st to May 1st , and fall seeding dates shall be September 1st to September

15 for the following seeding mixes.

PURE LIVE SEED

SEED VARIETIES lb./ac.

Orchard Grass - 5 Redtop - 5 Rape - 5 Long Headed Coneflower - 5 Birdsfoot Treefoil - 5 Little Bluestem - 5 Big Bluestem - 5 Black Eyed Susan - 5 Sideoats Gramma - 10 Canada Wild Rye - 10 Alsike Clover, Ladino or White Clover - 10 Alfalfa - 10 Perennial Rye - 10 Cereal Rye - 20

TOTAL 110

Replace Cereal Rye with 20 lbs. of Spring Oats and 10 lbs. of Buckwheat for Spring Seeding All Legumes such as alfalfa and clovers shall be inoculated per the recommendations of that inoculant producer prior to seeding. Operations must be completed within 24 hours of inoculation.

Temporary Seeding -This provision is applicable should the Contractor fail to perform permanent seeding within the dates specified. Temporary seeding shall be required to provide a temporary vegetative cover until the next term of permanent seeding dates and shall be performed by the Contractor at his/her own proper cost and expense. The Engineer shall submit in writing to the Contractor a proposed temporary seeding mixture, specifying the seed varieties and their respective rates on a pounds/acre of pure live seed basis.

Vegetation resulting from the temporary seeding shall be destroyed as part of the seed bed preparation for future permanent seeding.

Reseeding Guarantee.

The Contractor is required to guarantee the results of the permanent seeding for one year after the date of seeding. If the Engineer determines that vegetation on any area is unacceptable, the Contractor shall be required to reseed that area during the next term of permanent seeding dates, at the Contractor's own proper cost and expense.

Unacceptability will be based on:

(1) Seed test failure (Article 250.02).

(2) Using unacceptable equipment in performing seeding.

(3) Failure to perform seeding as specified, i.e., missing areas during seeding, improper seed bed preparation, etc.

(4) Failure to perform mulching as specified, i.e., applying too much or too light application in some areas, using unacceptable mulch, etc.

Subsequent Reseeding.

Any area reseeded once by the Contractor will be inspected within six months after reseeding to determine if germination has occurred. If subsequent reseedings are required of the same area(s), through no fault of the Contractor, the Contractor shall be compensated for such subsequent reseeding at unit bid prices for each applicable pay item.

NPDES Compliance (This section is added to ensure compliance and provide guidance on how the Contractor shall perform work while meeting conditions of the NPDES Permit.)

1. Conditions created by or for the convenience of the Contractor’s operations will not exclude or release the requirements of NPDES conditions or of those in IDOT Article 280.

2. Work shall be coordinated with the Engineer such that completed slopes and areas of permanent seeding will be seeded and mulched. Under no circumstances shall the Contractor prolong Final grading and shaping. All seeding, permanent or temporary, shall be completed when determined by the Engineer to do so.

More than one mobilization of seeding equipment may be necessary and at no additional cost to the Department.

3. Seeding and Erosion Control items related to NPDES regulations will be governed by applicable sections of IDOT Standard Specifications January 1, 2022, Article 105.

Article 250.10 Basis of Payment The cost of seed testing and any temporary seeding or reseeding will not be paid for separately but shall be considered incidental to the cost of SEEDING. Seeding, Mulch, and Mowing shall be measured and paid by the area in Acres. Nutrients shall be paid by the pounds of actual nutrient.

End of SECTION 250.

SECTION 671. MOBILIZATION (Delete entire section and replace with the following:)

Article 671.01 Description

This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies and incidentals to the project site; for establishment of offices, buildings and other facilities necessary for work on the project; and for all other work or operations which must be performed or costs incurred when beginning work on the project.

This work shall also consist of ancillary tasks which are not covered by other pay items. These tasks may include, but are not necessarily limited to, fence removal, pumping water, traffic control, and providing and maintaining construction barriers and signage.

The amount which a Contractor will receive payment for, in accordance with the following schedule, will be limited to six percent (6%) of the total contract bid.

Article 671.02 Basis of Payment

Payment of the lump sum amount bid for this item will be made in one payment after mobilization.

APPENDIX A

PLANS

SHEET 1 COVER SHEET

SHEET 2 QUANTITY SHEET

SHEET 3 DETAILS