205Haul

204.03.3 2--Biaxial Geogrids. Biaxial geogrids shall be overlapped three (3) feet

between adjacent strips and four (4) feet at the ends except where otherwise noted on the plans and/or in the contract documents.

204.03.4 Placement of Fill over Geogrid. Fill placement shall conform to the

requirements of Section 203. Extreme care shall be taken to prevent slippage of the geogrid during fill placement. The fill shall be back dumped and spread on the geogrid in uncompacted lifts of at least six (6) inches before equipment is allowed to continuously operate over it. At no time will tracked equipment be allowed to operate directly upon the geogrid. Rubber tired equipment will be allowed to pass over uncovered geogrid at speeds of less than 5 mph as directed by the Engineer. Any geogrid damage caused by fill placement or equipment movement over th e geogrid will be uncovered and repaired as directed by the Engineer at no additional cost to the State.

204.04 Method of Measurement. Geogrid of the type specified will be measured by

the square yard of surface area covered. Any overwidth of geogrid installed and additional material required for laps or damage repairs will not be measured. No separate payment shall be made for shipping, handling, storage, protection, fabrication, securing pins or installation, the cost of which shall be included in the contr act price for geogrid.

204.05 Basis of Payment . Geogrid, measured as prescribed above, will be paid for at

the contract unit price per square yard, which price shall be full compensation for furnishing and placing the geogrid, pins, lapping, joints, repairs, maintaining the geogrid until covered, and satisfactorily completing the work. Payment will be made under: 204-A: Geogrid, Type ____ - per square yard SECTION 205 - HAUL

205.01 Description . When the contract contains a pay item for haul, it shall consist of

transporting excavated material from its original position to its final location in the work. Haul is designated as Haul of Unclassi fied Excavation and Haul of Classification Excavation.

205.02 Blank.

205.03 Blank.

205.04 Method of Measurement . Haul of excavation will be measured for payment

only when the bid proposal contains a pay item for haul. The pay item will identify the excavation item for which haul is to be measured. Haul will be measured on a distance-volume or distance-weight basis. The distance being 100-foot stations measured along the stationed control line of the project, and the volume or weight measured in the same manner as the excavation item. In computing haul, it will be assumed that excavated material, including structure excavation, will be hauled the minimum dist ance and placed in the nearest embankment unless otherwise specified or di rected. Cross-haul, when sp ecified or directed by the Engineer, will be measured for payment. Haul will be computed by multiplying the units of excavation by the average distance it is hauled. When excavation is shown on the plans and in the proposal to be measured FM, computation of haul will be based on balanced final excavation and embankment quantities determined from final cross-sectional measurements. A balanced section will be considered as being between two points across which no excavation is hauled. A shrink age factor will be determined for each balanced section to convert each embankment quantity to the excavation quantity required to construct the embankment. The center of volume for the cut will be the point where the accumulated yardage equals one-half the total excavation, and the center of volume for the embankment will be the point where the accumulated yardage equals one- half the total embankment. Within each balanced section, the average haul will be computed along the control line of the project as the distance between the center of volume for the excavation in its original position and the center of volume for the corres ponding embankment in its final position. Embankment and excavation will be considered in sections not exceeding approximately 1,000 feet in length. The center of volume of each section will be determined as set out in the previous paragraph and used in determining the average haul distance. Structure excavation used in construction of embankments will be included in the excavation quantities of each balanced division , and haul thereof will be determined as set out above. When the plans and proposal provide for haul of excavation measured as plan haul distance (P.H.D.), the final quantity for Haul of Excavation will be adjusted proportionate to the increase or decrease in the total excavation quantity determined from final cross- sectional measurement of accepted work.

205.05 Basis of Payment . Haul of excavation, measured as prescribed above, will be

paid for at the contract unit price per station yard, which shall be full compensation for completing the work. Payment will be made under: 205-A: Haul of Unclassified Excavation, FM or LVM - per station yard 205-B: Haul of Classification Excavation, FM, FME or LVM - per station yard 205-C: Haul of Classification Excavation, FM, FME or LVM, PHD - per station yard Section 206 Section 206 SECTION 206 - STRUCTURE EXCAVATION FOR CONDUITS AND MINOR STRUCTURES

206.01 Description . This work consists of the removal of material necessary for the

construction of foundations for box culverts, box bridges, underdrains, pipe culverts and headwalls, and other minor structures when authorized by the section covering their construction. It shall also include all neces sary pumping, bailing, drainage, cribbing or sheeting, other foundation work, and the backfilling and proper disposal of all excavated material as directed. Unless otherwise spec ified, excavation for pipe used as sidedrain will not be measured as structure excavation.

206.02 Blank .

206.03 Construction Requirements .

206.03.1 Excavation . No excavation shall be made until the Engineer has cross

sectioned and staked out the work. The Contract or shall exercise care to ensure that the adjacent natural ground is not unnecessarily disturbed or the foundation loosened below the bottom of the footing unless ad ditional excavation is required. When the plans indicate or the Engineer directs removal of material classified in the contract as muck excavation or special exca vation, the undercut shall be made and the area backfilled approximately one foot ab ove the flow line of the structure and compacted to the required density befo re structure excavation is performed. Foundation areas shall be excavated to the footing elevations and dimensions shown on the plans or as established. The right is reserved to make adjustments in the location or flow line to provide adequate drainage and to make dimension changes in the footings to obtain a satisfactory foundation. In addition to the requirements of this subs ection, excavation for pipe culverts will be performed in accordance with Subsection 603.03. Material encountered that is unsuitable for a stable foundation shall be excavated and backfilled as provided in Subsection 203.03.

206.03.2 Backfill . All backfilling shall be in acco rdance with the requirements and

provisions of Subsection 203.03. When the plans indicate or the Engineer orders removal of unsuitable material or other undercut below the normal grade line to provide a satisfactory foundation and further orders a specified depth of select material that may not be available from within the right- of-way or easement areas, the Contractor shall furnish a suitable backfill material such as sand, gravel, or other similar granular materials.

206.04 Method of Measurement . Structure excavation acceptably performed will be

measured as set forth herein. For structures other than pipe culverts, the area to be included in the measurement of structure excavation will be that area bounded by vertical planes one foot outside of the neat lines of the footing.