SECTION_31_00_00_Earthwork_REVISED_2017-08-28.docx

SECTION 31 00 00 EARTHWORK

PART 1 GENERAL

1.1 SCOPE: The work covered by this section includes furnishing all plant, labor, equipment, materials, and transportation necessary for the accomplishment of grading and compaction of excavations, embankments, structural foundations, and planted areas.

1.2 APPLICABLE PUBLICATIONS: The publications listed below form a part of this section to the extent referenced. Publications are referred to by basic designation only. Publications shall be assumed to be the most current edition in effect at the time a contract is awarded.

1.2.1 State of Kansas Department of Transportation (KDOT) Publication:

Standard Specifications for State Road and Bridge Construction including special provisions and errata. All references to "The State" or "The Engineer" shall be considered as referring to "The Contracting Officer".

1.3 MEASUREMENT AND PAYMENT: Payment shall be in accordance to the Measurement and Payment sections in Division 200 of the KDOT Std. Spec.

1.4 SUBMITTALS:

1.4.1 List of Materials: The Contractor shall submit materials in accordance with the KDOT Standard Specifications or Part V.

1.4.2 Test Results: The Contractor shall submit moisture density relationship test and compaction test results as specified in Part 3, paragraph Compaction Testing.

1.4.3 Application for DA Radiation Authorization or Permit: The Contractor shall submit DA Form 3337, Application for Department of the Army Radiation Authorization or Permit, 60 business days prior to use of nuclear density testing equipment.

PART 2 PRODUCTS

2.1 MATERIALS:

2.2 SATISFACTORY MATERIALS: Satisfactory materials include materials classified in KDOT Standard Specifications Sections 204-206.

2.3 FILL MATERIALS: Fill materials shall be one or more of the satisfactory classifications listed above.

2.4 TOPSOIL MATERIALS: Topsoil material shall be of such quality that it will support healthy plant growth.

PART 3 EXECUTION

3.1 GENERAL: The Contractor shall perform excavation, filling, and backfilling for pavement as indicated in the job orders and specified in the KDOT Standard Specifications Sections 204-206.

3.2 FLAGGING UTILITIES: The Contractor shall verify the locations of, and protect all underground utilities and communication cables from damage prior to the start of any excavations. Any damage to utilities or communication cables within 3 feet of marked locations shall be repaired or paid for by the Contractor at no additional expense to the Government. Underground utilities maps indicating the approximate location of existing underground utilities are available upon request from the Engineering Plans & Services Division, Public Works, Building 408. Underground communication cable maps indicating the approximate location of existing underground communication cables are available upon request from Maintenance Division, US Army Communications Command, Building 634. These maps have been developed from historical data and will give the Contractor general locations only. The Contractor shall determine actual locations of underground utilities and communication cables.

3.3 DRAINAGE: Excavation shall be performed so that the area of the site and the area immediately surrounding the site and affecting operations at the site will be continually and effectively drained.

3.4 SHORING: Shoring, including sheet piling, shall be furnished and installed by the Contractor as necessary to protect workmen, banks, adjacent paving, structures, and utilities. Shoring, bracing, and sheeting shall be removed as excavations are backfilled in a manner to prevent caving. Follow EM 385-1-1.

3.5 CLASSIFICATION OF EXCAVATION: Excavation will be unclassified regardless of the nature of material encounteredclassified according to the KDOT Standard .Specification sections 204 and 205.

3.6 BLASTING: Blasting is not be permitted.

3.7 BORROW: Where satisfactory materials are not available in sufficient quantity from required excavations, approved materials may be obtained from designated borrow areas on post. The Contracting Officer’s Representative will provide the location of on post borrow areas if borrow materials are required. Borrow areas shall be stabilized according to KDOT Standard Specifications Section 902 after excavations are completed. See attachment 4 for borrow pit locations.

3.8 EXCAVATION: Work shall include excavation of every type of material encountered within the limits of the project, to the lines, grades, and elevations indicated in the task Orders and as specified in KDOT Standard Specifications Sections 204-206

3.8.1 Ditches, Gutters and Channel Changes: Excavation of ditches, gutters, and channel changes shall be accomplished as required by Job Orders and as specified in KDOT Standard Specifications Section 205.

3.8.2 Drainage Structures: Excavations for drainage structures shall conform to the requirements specified in the KDOT Standard Specifications Section 204 or as indicated on the individual job orders.

3.9 PREPARATION OF SURFACES: The Contractor shall perform surface preparation as specified in the KDOT Standard Specifications Sections 204-206.

3.10 FILLING: The Contractor shall perform filling operations as specified in the KDOT Standard Specifications Sections 204-206.

3.11 BACKFILLING: Backfilling shall not begin until construction below finish grade has been approved, and the excavation cleaned of trash and debris. The Contractor shall perform backfilling operations as specified in the KDOT Standard Specifications Sections 204-206.

3.12 SUBGRADE PREPARATION: The Contractor shall prepare the subgrade as specified in the KDOT Standard Specifications Sections 204-206.

3.13 SPOT SUBGRADE REINFORCEMENT:

3.13.1 Material: Material for spot sub-grade reinforcement shall consist of crushed stone for backfill that conforms to KDOT Standard Specifications Division 1100.

3.13.2 Construction Methods: Unsuitable sub-grade materials encountered shall be removed and replaced in accordance to the construction requirements in the KDOT Standard Specifications Divisions 200 & 300 or as specified on Job Orders.

3.14 COMPACTION: Compaction will be performed as shown on the individual Job Orders and shall conform to the requirements in KDOT Standard Specifications Section 205.4.

3.15 COMPACTION TESTING: Compaction testing shall be performed by an approved commercial testing laboratory at the expense of the Contractor. Compaction test procedures and frequency shall be performed in accordance to the KDOT Construction Manual Part V Appendix A and applicable Kansas Test Method. When test results indicate that materials or installation do not conform to the requirements herein, the material shall be removed, replaced, re-compacted, and retested at no expense to the Government. The Government reserves the right to perform its own tests to verify conformance to Contract requirements. Nuclear density testing equipment shall not be operated without obtaining a Radiation Permit from the Fort Riley Radiation Protection Officer.

3.16 SHOULDER CONSTRUCTION: Shoulders shall be constructed as shown on the individual Job Orders and shall conform to the requirements in KDOT Standard Specifications Section 305.

3.17 BASE COURSE CONSTRUCTION: Base course material shall be placed on to the completed sub-grade in accordance with SECTION 32 11 23: CRUSHED AGGREGATE BASE COURSEKDOT Standard Specifications Division 300.

3.18 GRADING: Areas disturbed during construction shall be reconstructed true to grade, shaped to drain, and shall be maintained free of trash and debris until final inspection has been completed and the work has been accepted.

3.19 SPREADING TOPSOIL: Areas from which topsoil has been removed shall be re- top-soiled. The surface shall be free of materials that would hinder planting or maintenance operations. The sub-grade shall be pulverized to a depth of 2 inches by dicing or plowing for the bonding of topsoil with the subsoil. Topsoil shall then be uniformly spread, graded, and compacted to the thickness, elevations and slopes shown, and left free of surface irregularities. Topsoil shall be compacted by one pass of a cult packer, roller, or other approved equipment. Topsoil shall not be placed when the sub-grade is frozen, excessively wet, extremely dry, or in a condition otherwise detrimental to seeding, planting, or proper grading.

3.20 RE-ESTABLISHMENT OF TURF: The Contractor shall reestablish turf on the work site after construction has been completed. New turf shall be established as specified in SECTION 32 92 00: SEEDING AND FERTILIZING.

3.21 PROTECTION: Settlement or washing that occurs in graded, top-soiled, or backfilled areas prior to acceptance of the work shall be repaired and grades reestablished to the required elevations and slope.