Article 1 — Description
Excavate areas as shown on the plans or as directed. Remove materials encountered to the lines, grades, and typical sections shown on the plans and cross -sections.
Article 2 — Materials
Accept ownership of unsuitable or excess material and dispose of material in conformance with local, state, and federal regulations , at locations outside the right of way.
Article 3 — Construction
Maintain drainage in the excavated area to avoid damage to the roadway section. Correct any damage to the subgrade caused by weather at no additional cost to the Department. Shape slopes to avoid loosening material below or outside the proposed grades. Remove and dispose of slides or slope failures as directed. Excavate to the grade and sections shown on the plans. Manipulate and compact subgrade in accordance with Section 132.3.4., “Compaction Methods,” unless excavation is to clean homogenous rock at final grade. Correct unsuitable material encountered at or below subgrade as directed.
3.1 Rock Cuts . Use approved embankment material compacted in accordance with Section 132.3.4.,
“Compaction Methods,” to replace undercut material at no additional cost if excavation extends below the grade shown on the plans.
3.2 Earth Cuts . Scarify remaining material to a depth at least 6 in. below the grade shown on the plans in areas
where pavement structure will be placed. C ompact subgrade in accordance with Section 132.3.4., “Compaction Methods.”
3.3 Acceptance Criteria.
3.3.1 Grade Tolerances.
3.3.1.1. Staged Construction. Grade to within 1.25 in. in the cross -section and 1.25 in. in 16 ft. measured longitudinally. 3.3.1.2. Turnkey Construction. Grade to within 0.5 in. in the cross -section and 0.5 in. in 16 ft. measured longitudinally.
Article 4 — Measurement
This Item will be measured by the cubic yard in its original position as computed by the method of average end areas or as shown on the plans . 107 This is a plans quantity measurement Item. The quantity to be paid is the quantity shown in the proposal , unless modified by Article 9.2., “Plans Quantity Measurement.” Additional measurements or calculations will be made if adjustments of quantities are required. Limits of measurement for excavation in retaining wall areas will be as shown on the plans. Shrinkage or swelling factors will not be considered in determining the calculated quantities.
Article 5 — Payment
The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Excavation (Roadway),” “Excavation (Channel),” “Excavation (Special),” or “Excavation (Roadway and Channel).” This price is full compensation for authorized excavation; drying; undercutting subgrade in rock cuts and reworking or replacing the undercut material; hauling; disposal of material not used elsewhere on the project; scarification and compaction; and equipment, labor, materials, tools, and incidentals. Drying subgrade deeper than 6 in. below grade as shown on the plans will be paid for in accordance with Article 9.7., “Payment for Extra Work and Force Account Method.” Excavation and replacement of unsuitable material below grade as shown on the plans will be performed and paid for in conformance with the applicable bid items. However, if Item 132, “Embankment,” is not included in the Contract, payment for replacement of unsuitable material will be paid for in accordance with Article 9.7., “Payment for Extra Work and Force Account Method.” Remov ing, rework ing, reshaping, or re- laying existing pavement structure will be paid for in conformance with the appropriate Item. When a slide or slope failure not due to the Contractor’s negligence or operation occurs, payment for removal and disposal of the slide material will be in accordance with Article 9.7., “Payment for Extra Work and Force Account Method.” Excavation in backfill areas of retaining walls will not be measured or paid for directly , but will be subsidiary to pertinent Items.