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side structures are accessible without endangering the safety of equipment and <br />• operators or inducing unwarranted environmental impacts, the road-side <br />structures (as well as drainage structures and other sedimentation related <br />items not associated with roads) will be inspected and a detailed schedule <br />developed for spring maintenance. The schedule will be retained at the mine <br />and made available for review by the regulatory authority. Maintenance will <br />be implemented in accordance with the schedule and any modifications <br />recommended by the regulatory authority. In general, spring maintenance will <br />be performed in the following order: 1) ditches and culverts along haulroads <br />and access roads whose drainage does not pass through a sedimentation pond <br /> prior to leaving the permit area, 2) ditches and culverts along haulroads and <br /> access roads whose drainage does pass through a sedimentation pond prior to <br /> leaving the permit area (including drainage structures and other sedimentation <br /> related items not associated with roads), and 3) light use road drainage <br /> structures. The deferment of road-side drainage maintenance associated with <br /> the light use road (only one light use road currently exists) is considered to <br /> have the least potential environmental impact since this road is used <br /> primarily by water trucks during the summer months for dust suppression <br /> purposes. Variances to the general order of the schedule may be necessary <br />• depending upon site conditions (ie., priority will be given to those <br /> structures or items needing the most immediate attention regardless of the <br /> disposition of the drainage. <br /> Due to steepness of the terrain, narrowness of the available roadway <br /> corridor width, and hardness of the exposed rock outcropping on the hillside <br /> along some portions of the Goat Trail, triangular ditches as described above <br /> are not possible to be constructed. Therefore, an alternate drainage control <br /> plan is provided for the Goat Trail in Appendix 3.s-F. <br />3.5.5 ROAD MAINTENANCE <br />Raul and access road maintenance is performed routinely. Maintenance of <br />roads will be accomplished by a motor grader in most cases. Road ditches will <br />be cleaned and reshaped, with care be'nq taken not to obstruct culverts. The <br />actual road surface will be recrowned and reshaped at time of road <br />maintenance. water will be applied when necessary, except during winter, to <br />haulroads during this process to assure proper compaction and reduce dust. <br />• <br />3.5-Sk May 14,1993 <br />