Gallatin County, Montana Hazard Mitigation Plan Final Draft
GALLATIN COUNTY, MONTANA HAZARD MITIGATION PLAN FINAL DRAFT PREPARED FOR Gallatin County, Montana 311 W. Main Street Bozeman, MT 59715 APRIL 2019 Photo Credit: Gallatin County Emergency Management EXECUTIVE SUMMARY Disasters can strike at any time in any place. In many cases, actions can be taken before disasters strike to reduce or eliminate potential negative impacts. These actions can often mitigate the adverse effects of disasters and protect life, property, the economic and other values. The Gallatin County Hazard Mitigation Plan (HMP) addresses 19 major hazards with respect to risk and vulnerabilities countywide, including the communities of Bozeman, Belgrade, Big Sky, Manhattan, Three Forks, and West Yellowstone. Through a collaborative planning process, the Gallatin County hazards were identified, researched, profiled, and prioritized. In addition, Montana State University (MSU) elected to update their 2013 Pre- Disaster Mitigation (PDM) Plan as an annex to the county’s HMP. The MSU Annex is designated as Annex A and is included in its entirety following the HMP Sections. The major hazards are each profiled in terms of their hazard description, history, probability and magnitude, mapping, vulnerabilities, data limitations, and other factors. The vulnerabilities to critical facilities; critical infrastructure; structures; the population; economic, ecologic, historic, and social values; and future development are updated for each hazard. Based on the probability and extent of potential impacts that were identified in the risk assessment, the prioritizations of hazards within Gallatin County are displayed in Table ES-1. The countywide prioritizations are derived from hazard prioritization and ranking exercises held in five distinct community areas (districts) across the county in February 2018.
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