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Landslide/Mass Movements Table 12-4. Loss Estimation for Landslide Exposed Value Loss Value Loss as % of Total Planning Area Replacement Value Moderate Landslide Susceptibility Zone Loss = 1% of Exposed Value $17.4 billion $173.9 million Less than 1% Loss = 10% of Exposed Value $1.7 billion Less than 1% Loss = 30% of Exposed Value $5.2 billion 2.72% Loss = 50% of Exposed Value $8.7 billion 4.53% High Landslide Susceptibility Zone Loss = 1% of Exposed Value $32.9 billion $329.3 million Less than 1% Loss = 10% of Exposed Value $3.3 billion 1.72% Loss = 30% of Exposed Value $9.9 billion 5.15% Loss = 50% of Exposed Value $16.5 billion 8.58% Very High Landslide Susceptibility Zone Loss = 1% of Exposed Value $2.0 billion $19.6 million Less than 1% Loss = 10% of Exposed Value $196.4 million Less than 1% Loss = 30% of Exposed Value $589.2 million Less than 1% Loss = 50% of Exposed Value $982 million Less than 1% 12.4.3 Critical Facilities Highly susceptible areas of the county include mountain and coastal roads and transportation infrastructure. Access to major roads is crucial to life-safety after a disaster and can help to provide resilience during response and recovery operations. Landslides have the potential to block roads, isolating all or part of the County. Roadway blockages caused by landslides can create traffic problems, resulting in delays for emergency vehicles and public and private transportation. These blockages could result in economic losses for businesses. At this time, all infrastructure and transportation corridors identified as exposed to the landslide hazard are considered vulnerable until more information becomes available. A more in-depth analysis of the mitigation measures taken by landslide-exposed critical facilities to prevent damage from landslides should be done to determine if they could withstand impacts of a mass movement. 12.4.4 Environment Natural Resources Landslides can destroy natural assets that are highly valued by the community:  Landslides that fall into streams may significantly impact fish and wildlife habitat, as well as affecting water quality.  Hillsides that provide wildlife habitat can be lost due to landslides.  Endangered species and their critical habitat in the planning area may be located in landslide hazard areas. Agricultural and Timber Resources Agricultural resources include rangelands, timberlands, cultivated farmlands and dairy lands. Landslides can have major consequences to such resources, primarily timberland, due to the large percentage of such land in remote 12-11