4.7 SR 06-01-2020 - Laserfiche WebLink

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Sherburne County Multi -Hazard Mitigation Plan, 2020 City of Big Lake Since the last update of the plan there has been approximately Zoo new homes built in the city of Big Lake and around 3.00-3.5o new homes in the township which could have an adverse effect to costs in the event of a tornado, wind or hail event. Heavy construction and growth continues to stretch city resources thinner, which could impact our preparation and post -event needs significantly. City of Elk River In the last five years we have seen population growth with a new Boo -home development on the east side of the city, as well as the establishment of an outdoor motor cross track on the north side of town. At times there are 5,000 plus people at this outdoor venue with two campgrounds and no storm shelter. Elk River is an active senior community with a large portion of the population over 5o. This is only one of the vulnerable populations at risk, the city has also seen the increase in apartment, townhome and senior living. City of Princeton Every year it seems that the potential for flooding increases. We also are experiencing some interest in more building on the south side of our city. The city is also looking at senior citizens population increasing in our area. City of Zimmerman We have had a lot development in the past five years, but feel we have adequately planned for the growth. 4.1.3 Hazard Profiling Concept of Planning The risk assessments identify the characteristics and potential consequences of a disaster, how much of the community could be affected by a disaster, and the impact on community assets. A risk assessment consists of three components — hazard identification, risk profile and vulnerability profile. 4.1.4 GIS and Risk Assessment The risk analysis step in this assessment quantifies the risk to the population, infrastructure and economy of the community. Hazards that can be geographically identified (wildfires, windstorms, tornadoes, hail, floods) were mapped. FEMA's Hazus tool in ArcGIS was used to estimate the damages incurred for a i% annual chance flood and for general asset assessment. Hazus also generates aggregated loss estimates forthe entire county due to a i% annual chance flood. Aggregate inventory loss estimates, which include building stock analysis, are based upon the assumption that building stock is evenly distributed across each census block. Therefore, it is possible that overestimates of damage will occur in some areas while underestimates will occur in other areas. With this in mind, total losses tend to be more reliable over larger geographic areas (groups of many blocks) than for individual census blocks. It is important to note that Hazus is not intended to be a substitute for detailed engineering studies. Page138