Specifications_Revised_0001.docx

SECTION 02315

EXCAVATION AND FILL

PART 1: GENERAL

SUMMARY

Section Includes: Excavation, placement, scarification and in-place compaction of previously disturbed soil and disposal of materials as shown on the drawings.

A. Related Sections General Information and Requirements Section 01009

DEFINITIONS

Unclassified Excavation: Consists of the material excavation and placement regardless of its nature.

Rock Excavation: Removal of material is rock excavation when it consists of igneous, metamorphic, and sedimentary rock which cannot be excavated without blasting or the use of a tractor having a power rating in excess of 195 net horsepower, with a rear-mounted, heavy-duty, single-tooth, ripping attachment.

Common Excavation: Removal of materials which can be excavated using a rear- mounted, heavy-duty, single-tooth ripping attachment mounted on a crawler tractor with a power rating of 195 net horsepower or less shall be considered common excavation.

Muck Excavation: Shall consist of the removal and disposal of deposits of saturated or unsaturated mixtures of soils and organic matter not suitable for foundation material regardless of moisture content.

Fill Material: Imported Grade W material.

Topsoil: Not applicable to this contract.

PART 2: PRODUCTS

MATERIALS

Backfill Material: Shall be imported material, Grade W, and shall be a minimum of 6” thick. A modified Grade W mixed with milled asphalt material may be proposed for use by the contractor. Asphalt content may not exceed 25% of mixed backfill unless otherwise specified in the contract specifications and drawings.

PART 3: EXECUTION

PREPARATION

Preparation: Prior to beginning excavation, locate and demolish all existing utilities from prior BLM facility to below limits of new pavement work.

INSTALLATION

Excavation: Excavate where shown on the drawings and typical sections, unless staked otherwise. Excavate on a straight grade between the control points shown on the drawings unless staked otherwise. Protect existing asphalt pavement edges from damage. Damaged pavement shall be repaired in accordance with contract drawings detail on pavement repairs.

The Contractor shall remove all excess material from the construction site for reuse or disposal. Excess material will not be allowed to be stored on site.

Fill Material: Shall be spread over the full width of the cross section of the excavation. Material shall be compacted to a minimum of 95% of maximum standard proctor density.

PART 4: MEASUREMENT AND PAYMENT

METHOD OF MEASUREMENT

Units: The work described in this section will be measured and paid for by cubic yards of excavation and backfill as computed by the dimensions depicted as existing gravel sections on the Drawings.

No additional measurement will be made for additional excavation performed by the Contractor beyond the volume calculated by dimensions depicted in the Drawings. No separate payment will be made for transporting excess excavated material from the excavation.

BASIS OF PAYMENT

Payment: Payment for Work described in this Section shall be based on the Contract unit price for each component of the Work in place, complete, and accepted as shown below:

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MILLS WARE YARD 02315 - 2

PARKING LOT REPAIRS