Laserfiche WebLink
SUBSIDENCE HANDBOOK <br />` TRAILS <br />Introduction <br />Various access trails have been constructed for past exploratory drilling <br />and existing ranching use. Tfiese trails are not surfaced and have limited <br />access and traffic. 'The trails are used for continued monitoring of envi <br />ronmental resources and ranching. <br />WorstCase Damage <br />A subsidence crack could develop along a trail, causing hazard to traE£ic. <br />Pre-Damage Monitoring <br />CwI will monitor conditions of low-traffic trails as persons travel on usual <br />environmental resource monitoring. Any problems will be noted and docu- <br />• mented in the "Annual Subsidence and Hydrology Import" . <br />Surface users of trails will be notified six months prior m undermining. <br />Any subsidence-induced problems identified by the trail users will be docu- <br />mented. 'I}ue vast majority of trails have been constructed and are used by <br />CWI. 'This is especially true in the first permit tettm. <br />PostDamage monitoring <br />Rost damage monitoring will be conducted like pre-damage monitoring. <br />Mining Techniques <br />conventional roan-and-pillar mining with pillar extraction will be used <br />throughout the permit area. Ztuis will have little effect on access trails. <br />• <br />