124 207.13 -PROTECTION OF CURTAIN WALLS : All bridges which will be used for permissi ble haulage, but which do not have the approach slabs constructed, shall have the pavement notch of the curtain walls built up to final grade by the use of timber to eliminate the possibility of damage to the curtain walls.
207.14 Slides and Slipouts :
Material outside the planned roadway or ditch slopes which, in the opinion of the Engineer, is unstable and constitutes a potential slide area, material from slides which has come into the roadway or ditch, and material which has slipped out of new or old embankments shall be excavated to designated lines or slopes either by benching or in such manner as directed by the Engineer. Such material shall be used in the construction of the e mbankments and in flattening of slopes, or disposed of as directed by the Engineer. Erosion, regardless of amount or extent, caused by the action of the elements and which results in damage to the work or materials shall in no case be considered a slide o r slipout.
207.15 Method of Measurement :
The quantity of work done will be measured in cubic yards for Item 207001 -*, "Unclassified Excavation", which shall be the material actually moved and disposed as herein prescribed, measured in its original position and determined from the cross sections by the method of average end areas. The quantity of unclassified excavation for payment will be the number of cubic yards as further described. The q uantities shall be computed using the cross section areas shown on the Plans with deductions from or additions to such cross section areas in accordance with Subsection 109.2 and authorized deviations. The quantity for payment will be to plan lines for ma terial excavated in accordance with the construction tolerance set forth in Subsection 207.3.1 except as provided. In no case where the tolerance line has not been reached will the quantity for payment exceed the quantity actually excavated; unless otherw ise authorized, the Contractor will be required to continue or resume excavation until within tolerance rather than receive payment for a lesser (out -of-tolerance) excavated quantity. No material removed beyond the slope lines or below the grade line show n on the Plans, except as provided in Subsection s 207.3.4 and 207.9, will be included for payment unless authorized in writing by the Engineer. Slides and material removed from beyond the slope lines, not attributable to carelessness, overshooting, or uns uitable construction methods on the part of the Contractor, will be included only when so authorized. Excavation below grade, including undercutting, as shown on the Plans or as directed by the Engineer; ditches to divert water from the slopes of cuts; in let and outlet ditches for drainage structures; other ditches as authorized be the Engineer; removal of topsoil, sod, old pavement, boulders, walls, and other unsuitable material within the areas upon which the embankment is to be placed; benching; and all other excavation authorized but not shown by the cross sections, will be measured separately and included for payment. Where stone base or concrete pavements have been scarified or broken but not removed, or slopes other than rock upon which embankments are to be made are plowed or scarified and the loose soil has been manipulated and compacted but not removed, such work and all the work of placing and compacting all embankments, widenings or waste pits, placing and consolidating rockfills, wi ll be considered as a necessary part of manipulation, the cost of which is included in the price bid per cubic yard for "Unclassified Excavation". Payment for placing of temporary surcharge will be included in the contract unit price for "Unclassified Ex cavation" or "Unclassified Borrow Excavation", as the case may be. Removal of temporary surcharge will be paid at the contract unit price for "Unclassified Excavation". 125 The removal and disposal of slide and slipout material in accordance with Subsection
207.14 will be paid for at the contract price for "Unclassified Excavation", unless the Engineer,
prior to the removal of such material, orders the slide or slipout material to be removed and disposed of as "Extra Work", or the Contractor, prior to perform ing any such work, requests in writing that the removal and disposal of any such slide or slipout material be paid for as "Extra Work", and the Engineer approves. The cost of any work outside the limits of the slide necessary to make slide or slipout area s accessible to normal excavation equipment will be paid for as "Extra Work". The above provisions shall not be so construed as to relieve the Contractor from the duty of maintaining all slopes true and smooth. The quantity of subgrade work done under thi s item will be the number of cubic yards of "Subgrade" established in the Proposal, subject to adjustment as provided for in Subsection s 104.2 and 109.2. Any additional work beyond the scope of the original Plans but authorized by the Engineer will be mea sured in cubic yards, compacted in place, and paid for at the unit bid price for subgrade, subject to the provisions of 104.2. The quantity of subgrade work done under Item 207002 -* will be the number of cubic yards measured and compacted in place, subje ct to adjustment as provided for in 104.2 and 109.2. Any additional work beyond the scope of the original Plans but authorized by the Engineer will be measured in cubic yards, compacted in place, and paid for at the unit bid price for subgrade. Measureme nt and payment for subgrade drains will be in accordance with the provisions of Section 606.
207.16 Basis of Payment :
The quantities, determined as provided above, will be paid for at the contract unit prices bid for these items, which prices and payments shall be full compensation for doing all the work prescribed in a workmanlike and acceptable manner, including all labor, tools, equipment, supplies, and incidentals necessary to complete the work . The cost of unclassified excavation including the hauling of all material, any reserving and rehandling of unclassified excavation material, embankment construction including compaction, furnishing and applying water as an aid to embankment compaction, and the cost of furnishing additional waste sites, grading, fertilizing, and seeding and mulching of all waste sites, shall be included in the unit price bid for "Unclassified Excavation". The cost of furnishing all materials, including furnishing and app lying water necessary as an aid to subgrade compaction, shall be included in the unit price bid for "Subgrade".