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be placed in a manner to promote conveyance of the design flow. All culverts will be • <br />covered by compacted fill to a depth of one foot. <br />Surfacing <br />Access roads will be surfaced with rock, crushed gravel, asphalt, or other material <br />approved by the Division es sufficiently durable for the anticipated volume of traffic and <br />weight end speed of vehicles to be used. Acid- or toxic-forming substances will not be <br />used in road surfacing. Vegetation will not be cleared for more then the width necessary <br />for road and associated ditch construction to serve traffic needs and for utilities. <br />Maintenance <br />Access roads will be maintained in such a manner that the required or approved design <br />standards ere met throughout the life of the entire transportation facility including <br />surface, shoulders, parking and side areas, approach structures, and erosion control <br />devices. <br />Access road maintenance will include basic custodial care es required to prevent damage <br />-to adjacent resources. This includes maintenance to Control erosion, repair of structures <br />and drainage systems, removal of rocks and debris, replacement of surface, end restoration <br />of the road prism. <br />Reclamation <br />Unless the Division approves retention of access roads as suitable for the approved <br />postmining land use, immediately after the road is no longer needed for operations, <br />reclamation, or monitoring: The road will be closed to vehicular traffic; the <br />natural-drainage patterns will be restored; all bridges end culverts will be removed; <br />roadbeds will be ripped, plowed, and scarified; fill slopes wilt be rounded or reduced <br />and shaped to conform the site to adjacent terrain end to meet natural-drainage <br />restoration standards; cut slopes will be shaped to blend with the natural contour; <br />terraces will be constructed as necessary to prevent excessive erosion and to provide <br />long-term stability in cut-and-fill slopes; and the regraded area will be covered with <br />topsoil in accordance with 4.06.4(2) end revegetated in accordance in 4.15. <br />Unless otherwise authorized by the Division, all road-surfacing materiels will be <br />removed, hauled or conveyed, and disposed under 4.71.4. • <br /> 14 <br />