Attachment 1 Construction Specs.pdf

COUNTY, ILLINOIS

INDEX OF CONSTRUCTION SPECIFICATIONS

NUMBER NAME

Susan Montgomery WRE, Tazewell Co. IL

(210-VI-NEH, May 2001)

Construction Specification 3—Structure Removal

1. Scope The work shall consist of the removal, salvage, and disposal of structures (including fences) from the designated areas.

2. Marking Method 1—Each structure or structure part to be removed will be marked with stakes, flags, paint, or other suitable method.

Method 2—The area boundaries from which structures must be removed will be marked using stakes, flags, paint, or other suitable method. Structures to remain undisturbed or to be salvaged will be desig-nated by special markings.

3. Removal Method 1—All structures designated for removal in the contract shall be removed to the specified ex-tent and depth.

Method 2—Within the areas so marked, all visible and buried structures identified shall be removed to the specified extent and depth.

4. Salvage Structures or structure parts that are designated to be salvaged shall be carefully removed and neatly placed in the specified or approved storage location. Salvaged structures that are capable of being disas-sembled shall be dismantled into individual members or sections. Such structures shall be neatly and systematically match marked with paint before disassembly. All connectors and other parts shall be marked to indicate their proper location within the structure and shall be fastened to the appropriate structural member or packed in suitable containers.

Material from fences designated to be salvaged shall be placed outside the work area on the property on which the fence was originally located. Fence wire shall be rolled into uniform rolls of suitable size and neatly piled with other salvaged materials. Posts and rails shall be neatly stacked.

5. Disposal of refuse materials Refuse materials resulting from structure removal shall be disposed of in a manner and at locations specified in section 7 of this specification or in an acceptable manner and at locations approved by the contracting officer. Disposal by burning shall be in accordance with local rules and regulations.

6. Measurement and payment Method 1—For items of work for which specific unit prices are established by the contract, payment for the removal of each structure unit, except fences, is made at the contract unit price. Fences removed or removed and salvaged are measured to the nearest linear foot. Payment for fence removal or removal and salvage is made at the contract unit prices for each type and size of fence.

Such payment will constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the completion of the work.

Method 2—For items of work for which specific lump sum prices are established by the contract, pay-ment for structure removal is made at the contract lump sum price.

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(210-VI-NEH, May 2001) 3–2

Such payment will constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment. Compensa-tion for any item of work described in the contract, but not listed as a contract line item number in the bid schedule, is included in the payment for the item of work to which it is made subsidiary. Such items and items to which they are made subsidiary are identified in section 7 of this specification.

7. Items of work and construction details

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Construction Specification 44—Corrugated Polyethylene Pipe

1. Scope The work consists of furnishing and installing pipe and the necessary fittings and appurtenances as shown on the drawings and as outlined in this specification.

2. Material Corrugated polyethylene pipe and fittings shall conform to the material requirements as outlined in Material Speci-fication 548, Corrugated Polyethylene Pipe.

When perforations are specified, the water inlet area shall be a minimum of 1 square inch per lineal foot of pipe.

The inlets either shall be circular perforations or slots equally spaced along the length and circumference of the pipe. Unless otherwise specified, circular perforations shall not exceed 3/16 inch in diameter, and slot perforations shall not be more that 1/8 inch wide.

Geotextile filter socks, when required, shall meet the material requirements outlined in section 9 of this specifica-tion.

Granular bedding material, when specified, shall conform to the requirements specified in section 9 of this specifi-cation.

The pipe shall be appropriately marked with ASTM or AASHTO designation.

3. Handling and storage Pipe shall be delivered to the job site and handled by means that provide adequate support to the pipe and do not subject it to undue stresses or damage. When handling and placing corrugated polyethylene pipe, care shall be taken to prevent impact blows, abrasion damage, and gouging or cutting (by metal edges and/or surface or rocks).

The manufacturer's special handling requirements shall be strictly observed. Special care shall be taken to avoid impact when the pipe must be handled at a temperature of 40 degrees Fahrenheit or less.

Pipe shall be stored on a relatively flat surface so that the full length of the pipe is evenly supported. Unless the pipe is specifically manufactured to withstand exposure to ultraviolet radiation, it shall be covered with an opaque material when stored outdoors for 15 days or longer.

4. Excavation Unless otherwise specified or approved by the engineer, excavation for and subsequent installation of each tube pipeline shall begin at the outlet end and progress upgrade. The trench or excavation for the pipe shall be con-structed to the lines, depths, cross sections, and grade shown on the drawings, specified in Section 9 of this specifi-cation, or as approved by the engineer.

Trench shields, shoring and bracing, or other suitable methods necessary to safeguard the contractor's employees and the works of improvement and to prevent damage to the existing improvements shall be furnished, placed, and subsequently removed by the contractor.

5. Preparing the pipe bed and blinding the pipe When a granular filter or envelope is specified, the filter or envelope material shall be placed in the bottom of the trench just before the pipe is laid. The pipe shall then be laid and the filter and envelope material placed to a depth over the top of the pipe of not less than that shown on the drawings or as specified in section 9 of this specification.

When a granular filter or envelope is not specified, the bottom of the trench shall be shaped to form a semicircular or trapezoidal groove in its center. This groove shall provide support for not less than a fourth of the outside cir-cumference of the pipe. After the pipe is placed in the excavated groove, it shall be capped with friable material from the sides of the trench. The friable material shall be placed around the pipe, completely filling the trench to a

44–2 (210–VI–NEH, January 2009) depth of at least 3 inches over the top of the pipe. For material to be suitable, it must not contain hard clods, rocks, frozen soil, or fine material that will cause a silting hazard to the drain. Pipe placed during any day shall be blinded (place required soil material around and over pipe) and temporarily capped before construction activities are com-pleted for that day.

6. Placement and joint connections All pipe shall be installed to grade as shown on the drawings. After the pipe is placed in the trench and blinded, al-low sufficient time for the pipe to adapt to the soil temperature before backfilling.

Maximum allowable stretch of the pipe is 5 percent. Special precautions must be implemented on hot, bright days to ensure that the stretch limit is not exceeded and excessive deflection does not occur as a result of installation procedures, including backfill operations.

Unless otherwise specified in section 9 of this specification or shown on the drawings, connections are made with manufactured junctions comparable in strength with the specified pipe. All split fittings shall be securely fastened with nylon cord or plastic zip ties before any backfill is placed. All buried ends shall be supplied with end caps un-less otherwise approved by the engineer.

7. Backfilling Unless otherwise specified in section 9 of this specification, the backfilling of the trench shall be as shown on the drawings and completed as rapidly as is consistent with the soil conditions. Automatic backfilling machines may be used only when approved by the engineer. Backfill shall extend above the ground surface and be well rounded and centered over the trench.

8. Measurement and payment Method 1—For items of work for which specific unit prices are established in the contract, the quantity of each kind and size of pipe is determined to the nearest foot of length measured along the centerline of the installed pipe.

Payment for each kind and size of pipe is made at the contract unit price for that kind and size of pipe. Such pay-ment constitutes full compensation for all labor, equipment, tools, and all other items necessary and incidental to furnishing, transporting, and installing the pipe, including excavation, shoring, geotextile or granular filter (when specified), backfill and all fittings, appurtenances, and other items required to complete the work. Payment for appurtenances listed separately in the bid schedule is made at the contract unit price(s) for the size and type of ap-purtenance listed.

Method 2—For items of work for which specific unit prices are established in the contract, the quantity of each kind, size, and class of pipe is determined to the nearest foot by measurement of the laid length along the crown centerline of the pipe. Payment for each kind, size, and class of pipe is made at the contract unit price for the kind, size, and class. Such payment constitutes full compensation for furnishing, transporting, and installing the pipe, in-cluding shoring, all fittings, thrust blocks, appurtenances, and other items necessary and incidental to the comple-tion of the work. Payment for appurtenances listed separately in the bid schedule are made at the contract prices for those items.

Compensation for any item of work described in the contract, but not listed in the bid schedule, is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made sub-sidiary are identified in section 9 of this specification.

9. Items of work and construction details

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Construction Specification 8—Mobilization and Demobilization

1. Scope The work consists of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under the contract. It does not include mobilization and demobilization for specific items of work for which payment is provided elsewhere in the contract. Mobilization will not be considered as work in fulfilling the contract requirements for commencement of work.

2. Equipment and material Mobilization shall include all activities and associated costs for transportation of contractor's personnel, equipment, and operating supplies to the site; establishment of offices, buildings, and other necessary general facilities for the contractor's operations at the site; premiums paid for performance and payment bonds including coinsurance and reinsurance agreements as applicable;

and other items specified in section 4 of this specification.

Demobilization shall include all activities and costs for transportation of personnel, equipment, and supplies not required or included in the contract from the site; including the disassembly, removal, and site cleanup of offices, buildings, and other facilities assembled on the site specifically for this contract.

This work includes mobilization and demobilization required by the contract at the time of award.

If additional mobilization and demobilization activities and costs are required during the performance of the contract as a result of changed, deleted, or added items of work for which the contractor is entitled to an adjustment in contract price, compensation for such costs will be included in the price adjustment for the item or items of work changed or added.

3. Payment Payment will be made as the work proceeds, after presentation of paid invoices or documentation of direct costs by the contractor showing specific mobilization and demobilization costs and supporting evidence of the charges of suppliers, subcontractors, and others. When the total of such payments is less than the lump sum contract price, the balance remaining will be included in the final contract payment. Payment of the lump sum contract price for mobilization and demobilization will constitute full compensation for completion of the work.

Payment will not be made under this item for the purchase costs of materials having a residual value, the purchase costs of materials to be incorporated in the project, or the purchase costs of operating supplies.

4. Items of work and construction details

A. Bid Item 1, Mobilization and Demobilization

1. This item shall consist of the mobilization and demobilization of the contractor's forces and equipment as well as all permitting, bonding and insurance requirements necessary to perform the work required under this contract.

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2. Access to the site shall be as shown on the drawings. After construction, routes will be returned to preconstruction condition or better.

3. All earthmoving equipment utilized for the work shall meet the requirements of OSHA, Paragraph 1926.602. In addition, roll-over protection and safety belts shall be installed, maintained, and utilized regardless of the equipment age or struck capacity. This includes earthmoving equipment as mentioned in Part 1926, Subpart 0, Sections 1926.602 and Subpart W, Sections 1000, 1001, and 1002, to include skid-steer and self propelled compactor equipment.

4. The contractor shall perform the work in such a manner as to control erosion and minimize the production of sediments, disturbed ground, and other pollutants to the water and air during construction operations.

5. The contractor should take all precautions necessary to protect existing utilities, including proper notification of the Illinois one-call system. Payment for Bid Item 1 - Mobilization and Demobilization shall be lump sum. As specified in Section 3, payment shall constitute full compensation for all labor, equipment, materials, tools and other items necessary to complete the work.

6. Payment for Bid Item 1 - Mobilization and Demobilization shall be lump sum. As specified in Section 3, payment shall constitute full compensation for all labor, equipment, materials, tools and other items necessary to complete the work.