2127.01 DESCRIPTION.
This work shall consist of removal of the upper portion of an existing roadbed to the depth specified in the contract documents, and the storage of the material removed, during the construction of subbase, base, or pavement, as designated. The work shall also include the recovery of stored material for reconstruction of roadbed to the typical cross section shown in the contract documents, all in accordance with the following provisions.

2127.02 CONSTRUCTION.
When indicated in the contract documents, road surfacing material shall be bladed into a windrow and reclaimed in accordance with provisions of Section 2126. This reclaimed material shall be stored at the locations selected or designated for use as required for later construction. The upper portion of existing roadbed, either in excavation or embankment, shall be removed and stored on the foreslope or at convenient locations adjacent to the work.

The roadbed shall be lowered over the entire width from outside edge of shoulder to outside edge of shoulder to the elevation indicated in the contract documents. To the extent possible, material removed in this operation shall be placed in its final location below subgrade elevation and compacted as required. Excess material required for later building of shoulders may be stored on the foreslopes or in selected stockpile locations until construction of subgrade, subbase, base, or pavement is completed.

Prior to the placement of material for the widening of embankments, all vegetation shall be removed from the existing foreslope, and the foreslope shall be roughened or stepped. The removal of vegetation and the roughening or stepping of the existing foreslope may be performed as a complete operation on a given slope before any material is placed adjacent to it, or may be performed just prior to placement of the material for a particular lift as the embankment is brought up.

If the width of the embankment widening at an attained elevation, measured horizontally between the existing foreslope and the proposed foreslope, is less than 4 feet (1.2 m), the widening material may be placed and shaped without specified compaction. If the width of the embankment widening is 4 feet (1.2 m) or more, the existing foreslope shall be stepped or benched to the extent that the widening material can be placed in lifts of 8 inch (200 mm) loose thickness and to a width sufficient to permit the operation of placing, leveling, and compaction equipment. Depending upon the variance between the rate of slope of existing foreslope and the proposed foreslope, this could require compaction of widening material in the bottom nine or ten lifts of an embankment and not require a specified compaction in the top three or four lifts. Materials used in widening of embankment where the width is 4 feet (1.2 m) or more shall be compacted as provided in Article 2107.12.

When required by the contract documents, reclaimed road surfacing material shall be returned to the central portion of the roadbed and spread uniformly over the area to be covered with a base or pavement plus 1 foot (0.3 m) on each side.

When the base course or pavement has been completed, the material which has not already been utilized in required embankment widening shall be recovered and used for the building of shoulders, for flattening slopes, or otherwise placed as directed by the Engineer. If not utilized, it shall be removed from the project and become property of the Contractor. Earth shoulders shall be built and finished as provided in Section 2123, except when construction of granular surfacing of shoulders is a required part of the work, the shoulders shall be finished and compacted to the elevation of the bottom of the granular surfacing.

2127.03 METHOD OF MEASUREMENT.

A. Reconstruction of Roadbed.
The quantity of Reconstruction of Roadbed, in stations (meters), will be the quantity shown on the contract documents. The quantity of Reconstruction of Roadbed will be determined along the centerline.

B. Earth Shoulder Construction.
Article 2123.04, B, shall apply.

C. Reclaiming Present Surfacing Material.
Article 2126.03 shall apply.

2127.04 BASIS OF PAYMENT.

A. Reconstruction of Roadbed.
The Contractor will be paid the contract unit price for Reconstruction of Roadbed per station (meter). This payment shall be full compensation for excavating; hauling; compaction; and recovery of excavated material, except reclaimed surfacing material, in the area of reconstruction of roadbed, except earth shoulder construction and reclaiming present surfacing material.

B. Earth Shoulder Construction.
Article 2123.05, B, shall apply.

C. Reclaiming Present Surfacing Material.
Article 2126.04 shall apply.