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<br />Aspen Highlands Ski Area <br /> <br />Impact Mitigaled <br /> <br />Required t\"1itlgation <br /> <br />Human Health and Safety - A\'alanche Control <br /> <br />Increased avalanche <br />aClivity in gladed areas. <br /> <br />Safety risk to avalanche <br />control teams. <br /> <br />Risk of avalanche hazard <br />in new skiing terrain. <br /> <br />22 <br /> <br />l. On slopes where the angle is belween 280 and 300. remove <br />no more than 20 percent of Ihe existing tree cover to reduce <br />the risk of creating new starting zones. <br />2. On slopes bet\\'een 300 and 320 no more than 10 percent of <br />the tree cover should be removed. <br />3. On slopes where the angle is above 320. removal of trees <br />should be avoided. <br />4. Where glading would occur in the vicinit)' of starting zones. <br />glading should be carried out in such a fashion 50 as not 10 <br />enlarge already existing avalanche starting zones or by <br />removal of islands of lrees. link together se\'eral smaller <br />starting zones 11110 one l<lrger starting zone. <br /> <br />I. Use fi:\ed avalanche conlrol facilities 10 deliver significant <br />shocks to the upper portions of the slope. This could be done <br />in conjunclion with olher avalanche conlrol procedures and <br />should provide additional assurances 10 hand charge teams <br />Ihal would subsequently enter the bowl 10 carry out control <br />\\ork. It also may help prevent widespread propagation of <br />a....alanche fracture lines from middle portions of Ihe bO\\ I to <br />the upper portions of the bowl which would threalen the <br />safety of the hand charge teams working the Interior of the <br />bowl. <br />2. Test snowpack stability in the interior and along the sides of <br />the bowl with some type of remote avalanche control system <br />(i.e.. mililary artillery. elc.) prior to entry by hand charge <br />teams. <br />3. Carefully conSider snowpack conditions before leams <br />proceed 10 the central parts of the bowls to place hand- <br />Ihrown explosives. in order to not endanger control teams. <br /> <br />1. Expand currenl snow safety program to accommodate <br />Increased a...'alanche hazard presented by inclusion of ne\\ <br />skiing terrain. <br />2. Develop facililies 10 monitor weather parameters known 10 <br />cOlllribute to avalanche hazard development that may affect <br />new skiing terrain. <br />3. Facilitate early season compaction of snow layers. <br />4. Use fixed avalanche control facilities 10 deliver large air <br />bl<lst to Ihe upper portions of the bowls to precipilate <br />a....alanche events. <br />5. Use remote localion control. such as military artillery. an <br />Avalallncher. or L.O CAT. 10 reach starting zones that are <br />beyond the range of fixed facilities. <br />6. Develop melhodology 10 safely and effeclively lest snowpack <br />stability and reduce the avalanche hazard that could affect <br />new skiing terrain. <br />7. Once ascertainll1g reasonable snowpack stability from a safe <br />distance. utilize controlleams on skis La deliver hand charges <br />in the safest possible manner. <br />8. Following a....alanche reduction procedures. and after <br />snowpack stability is found 10 be satisfactory, open the area <br />to skiing to facilitate skier compaction of snow layers. <br />9. Monitor all new areas, particularly in all gladed areas and <br />known hazard areas (i.e. Temerily area). <br /> <br />ASSOCiated Actions and Requirements <br />Required Mitigarion and ,Honi/oring <br /> <br />EITectlve- <br />nessl <br /> <br />2 <br /> <br />2 <br /> <br />2 <br /> <br />2 <br /> <br />2 <br />I <br /> <br />2 <br /> <br />2 <br /> <br />Responsible <br />Party <br /> <br />FS/ASC <br /> <br />FSI ASC <br /> <br />FSI ASC <br /> <br />FSI ASC <br /> <br />ASC <br /> <br />ASC <br />(FSIASC <br />for military <br />artillery) <br />ASC <br /> <br />FSI ASC <br /> <br />FSI A SC <br /> <br />ASC <br />ASC <br /> <br />ASC <br />(FSIASC <br />for artillery) <br />FSI ASC <br /> <br />ASC <br /> <br />FSI ASC <br /> <br />FSI ASC <br />