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207.04 Previously Constructed Roadbeds. All slide material including culvert inlet and outlet debris, shall be removed and the existing roadbed, including parking areas shall be scarified, bladed, and shaped to reasonably close conformity with the line, grade, and cross sections shown on the plans or established by the Engineer. Any high places in the roadbed shall be cut to grade and the resulting material hauled and deposited on low areas or on fill slopes as directed by the Engineer. Should there remain any depressions or narrow embankments, sufficient approved material shall be obtained and placed to bring the width and/or surface of the roadway in reasonably close conformity with the lines, grades, and cross sections shown on the plans or established by the Engineer. The roadbed shall then be rebladed and reshaped. At intersections, the roadbeds of side roads shall be treated similarly, for the distances ordered by the Engineer or as governed by the grading performed, to provide for proper joining of the proposed and existing riding surfaces. The roadbed shall be compacted as provided in subsection 203 and all work that may be necessary to produce a completed and acceptable foundation shall be performed and the roadbed shall be in this specified condition at the time of placement of any base course, surface course, or pavement.

207.05 Protection of Roadbed. At all times, ditches and drains along the roadbed shall be cleaned and maintained

as to drain it effectively. In no case shall any base course, surface course, or pavement be placed on a frozen, muddy, or unstable roadbed nor until the roadbed has been checked and app ved.

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Method of Measurement

207.06 New Roadbed. Finishing new roadbed and shoulders will not be measured for direct payment.

207.07 Previously Constructed Roadbed. The length of finishing previously constructed roadbed to be paid for will be the number of miles of roadbed measured along the centerline thereof, finished to the required width and accepted, subject to the provisions of subsection 207.09.

Basis of Payment

207.08 New Roadbed. Finishing of new roadbed and shoulders as hereinabove specified is not payable directly, but will be considered as a subsidiary obligation of the Contractor covered under the contract unit prices for work performed under section 203, section 305, and section 306, or other work involved in the contract, as the case may be.

207.09 Previously Constructed Roadbed. When the bid schedule contains an estimated quantity for “Finishing previously constructed roadbed," the quantity, determined as provided above, will be paid for at the contract price per unit of measurement for the pay item listed below, which price and payment will be full compensation for the work prescribed in this section except as provided in (1), (2), and (3) below.

(1) Excavation more than 0.3 feet below the existing roadbed surface will be paid for as provided under section 203.

(2) Removal of slide material will be paid for as provided under section 203.

(3) Additional material required to bring the roadbed to the finished section will be paid for as provided under appropriate sections 203, 305, and 306.

When the bid schedule does not contain an estimated quantity for “Finishing previously constructed roadbed," the work will not be paid for directly but will be considered as a subsidiary obligation of the Contractor covered under other contract items.

Payment will be made under: Pay item

Pay unit 207 (1) Finishing previously constructed roadbed

Mile

Section 208.-SHEATHING

Description

208.01 General. This work shall consist of gravel, slag, crushed stone, or sand furnished and placed in layers against the inside faces of retaining walls, wing walls, back faces of abutments, and over the extrados of arches, in accordance with these specifications and in reasonably close conformity with the requirements shown on the plans or as directed by the Engineer.

Materials

208.02 Sheathing material may be either gravel, slag, crushed stone or sand meeting the requirements of subsection 703.17.

Construction Requirements

208.03 When used against a mortar protection course of membrane waterproofing, sheathing shall not be placed until the mortar has aged for at least 3 days. The inlet ends of all weep holes and drains shall be covered first with large selected stones over which there shall be placed finer material in such manner as to provide free access for the drainage but prevent the leaching out of the filling material. The sheathing shall form a continuous covering over the entire designated surface, extending from the elevation of the bottom of weep holes and drains to the top of the wall. It shall be so placed that mingling with the fill will be prevented. Planks or other suitable separators that can be withdrawn as the work progresses shall be kept between the sheathing and the fill when working against vertical faces or slopes steeper than the angle of repose of the material. When waterproofing is protected by roofing felt, a 4-inch layer of sand shall be placed between the coarse graded sheathing and the felt. Unless specific thicknesses are shown or ordered, the layer of sheathing shall have a nominal total thickness of 1 foot.

Method of Measurement

208.04 The quantity to be paid for will be the number of cubic yards of sheathing material together with sand when included, measured in final position, between the limits shown on the plans or directed by the Engineer, complete in place and accepted.

Basis of Payment

208.05 Payment will be made for the quantity measured as provided above, for the pay item below, which price and payment will be full compensation for the work of this section.

Payment will be made under: Pay item

Pay unit 208(1) Sheathing material

Cubic yard.

Section 209.-OBLITERATION OF OLD

ROADWAYS

Description

209.01 General. This work shall consist of the obliteration, in reasonably cl conformity with these tions, of such old roadways as are shown on the plans or designated by the Engineer for obliteration.

Construction Requirements

209.02 After designated sections of the old roadway are no longer needed for traffic, the ditches shall be filled and the roadway rough graded, to restore approximately the original contour of the ground or to produce a pleasing appearance by forming natural, rounded slopes. After the rough grading is completed, the area of the old roadbed shall be scarified or plowed to mix the remaining road metal thoroughly with earth and then shall be harrowed and smoothed.

Old structures shall be broken down and buried or removed. Where shown on the plans or directed by the Engineer, all material with salvage value shall be carefully removed to avoid damage. Any materials salvaged from the old roadway and meeting specifications for any items of the new roadway may be used in the construction thereof as provided in subsection 104.05.

Where shown on the plans or directed by the Engineer, materials required for the new roadway shall be taken from the old roadway, and suitable material taken from the new roadway shall be used in obliterating the old roadway. There will be no separate payments for excavating, backfilling or compacting any remaining cavities.

Method of Measurement

209.03 The area to be paid for will be the number of units of old roadway acceptably obliterated or the square yards of old roadbed acceptably scarified, whichever is called for in the bid schedule.

A unit will consist of an area of 1,000 square feet measured horizontally. Only those units and fractions thereof which are outside the limits of the new roadway will be measured. Areas of less than 200 square feet will not be measured.

Basis of Payment

209.04 The quantity determined as provided above will be paid for at the contract price per unit of measurement for the particular pay item listed below that is shown in the bid schedule, which price and payment will be full compensation for the work prescribed in this section, except that materials obtained from the old roadway and used in construction of the new roadway and materials obtained from the new roadway and used in obliteration of the old roadway will be paid for under sections 203, 624, or other applicable sections.

Payment will be made under: Pay item

Pay unit 209(1) Obliteration of old roadways Unit. 209(2) Scarification of old roadways Square yard.

Section 210.-ROADSIDE CLEANUP

Description

210.01 This work shall consist of cleaning up roadside areas in reasonably close conformity with these specifications. The areas to be cleaned up shall be those areas so denoted on the plans and/or designated by the Engineer which are located beyond the clearing and grubbing limits designated in section 201.

Cleanup shall consist of clearing the designated ground of down timber, dead brush, logs, and debris, the felling and destroying of snags and dangerous trees as ordered by the Engineer within the designated area being cleaned up, and the burning or otherwise disposing of the spoil as ordered by the Engineer. Cleanup shall also include the removal from cultivated or cropped areas of all dead plants and plant refuse and shall include living crop plants when so ordered by the Engineer.

Construction Requirements

210.02 The neatness of cleaning up shall be relative, so as to be in character with the surroundings. Hand raking or

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