Final Environmental Impact Statement

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Vestal Final Environmental Impact Statement Chapter 3 would be used to maintain openings that were created near Buckhorn Mountain for mountain goat forage. These openings were created previously under a separate project. Prescribed burning would also enhance the mosaic of burned and unburned fuels which resulted from past wildfires. The result of these treatments would be a decrease in flamelength, intensity, duration, spotting, probability of ignition, and crownfire potential. This would create more strategic and tactical firefighting opportunities resulting in greater success during initial attack due to the fact that fireline construction rates would be enhanced, line placement opportunities would increase, and resistance to control would decrease. The reduction in fire behavior would create a safer environment for firefighters as well as the public. The break up in fuel continuity would also lead to more opportunities for locating safety zones. The risk of MPB outbreaks and the resulting accumulation to surface fuels would also be reduced by thinning. For a comparison by alternative please refer to Figure 15, on the next page. 118 Acres 20000 15000 10000 5000 0 Alternative 2- Fire Hazard Rating Alternative 2 Figure 12. Alternative 2 Fire Hazard Rating (Year 2018). Low Moderate High Very High
Vestal Final Environmental Impact Statement Chapter 3 Acres 20000 15000 10000 5000 Fire Hazard Rating Summary 0 Existing Conditions Alternative 1 Alternative 2 Figure 13. Fire Hazard Rating by Alternative. Table 43. Fire Hazard Rating by Alternative in Whole Project Area at Year 2018 Fire Hazard Existing Conditions Alternative 1 Alternative 2 Rating Acres % Acres % Acres % Low 1,777 7 2,007 8 5,887 23 Moderate 2,309 9 323 1 16,685 65 High 11,125 43 2,006 8 1,563 6 Very High 10,437 41 21,312 83 1,513 6 Table 44. Fire Hazard Rating by Alternative in WUI at Year 2018 Fire Hazard Existing Conditions Alternative 1 Alternative 2 Rating Acres % Acres % Acres % Low 1,301 8 1,251 8 3,308 21 Moderate 928 6 149 1 10,974 70 High 6,498 41 828 5 724 4 Very High 7,118 45 13,617 86 839 5 This alternative would meet the Forest Plan Goal 10 of establishing and maintaining a mosaic of vegetative conditions to reduce occurrences of large-scale, high intensity fire, insect, and disease events, and facilitate insect and disease management and firefighting capabilities. The proposed action would be consistent with Objective 10-01 by reducing fire hazard within the 3 mile WUI around the ARC of Custer. Proposed actions would manage for 50% - 70% moderate to low fire hazard in the wildland urban interface. In the short-term, directly following treatment, the percentage of WUI area with moderate and low fire hazard would be approximately 70 and 21 percent, respectively (see Table 44). Stands in a moderate fire hazard would grow over time and move into a high hazard condition. Those in a low hazard condition would grow into moderate hazard. Low Moderate High Very High 119
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Final Environmental Impact Statement

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