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Table 4-54 Critical Facilities At-Risk to Landslides or Slope Failure

JurisdictionFEMA LifelineCritical Facility TypeCount
GoldenCommunicationsMicrowave Service Towers3
GoldenHazardous MaterialHousehold Hazardous Waste1
GoldenSafety and SecurityGovernment Facility2
UnincorporatedCommunicationsLand Mobile Private Towers3
UnincorporatedHazardous MaterialTier II1

Source: HIFLD and CERC

Rockfall impacts on Jefferson County foothill highways and County roads have the potential to cause significant indirect economic loss. The most significant road that could be impacted by rockfall and related road closures is Highway 6 in Jefferson County in Clear Creek Canyon. Economic losses from this road closure and resulting detours could be estimated with traffic counts and detour mileage.

Historical, Cultural, and Natural Resources
Section titled “Historical, Cultural, and Natural Resources”

Landslides/rockslides are a natural environmental process. Environmental impacts include the removal of vegetation, soil, and rock.

Steep slope regulations limit problems from these hazards for future development, thus the exposure of infrastructure to these hazards is not anticipated to grow. As expansion of the gambling communities grows in nearby Gilpin County, the amount of traffic along the Clear Creek Canyon Highway 6 corridor will increase, and thus the amount of people exposed to danger from rockfall hazards may increase. While mitigation projects are in place to reduce dangers to drivers from falling rock along this corridor, more may be necessary in the future.

Landslides, debris flow, and rockfall in Jefferson County periodically impact on the planning area. The geographic extent of the hazard is considered limited. The probability of future occurrences is considered likely and the magnitude/severity for the event of record is limited. This equates to an overall impact rating of medium. While landslides, debris flow, and rockfall do occur with some regularity in Jefferson County, the direct effect on the populace is low, but the potential for severe injury or death remains from rockfall. Singular individuals or small groups may be affected by the direct effects of landslides, debris flow, and rockfall. The secondary effect of closed roads is a greater threat to the larger populace, especially if the closed roads cut off emergency personnel from those who need assistance.