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<br />.. <br />" <br /> <br />,"' <br /> <br />"J <br /> <br />4 <br />, <br /> <br />~ <br /> <br />5.3 <br /> <br />Flood Insurance Zones <br />! <br /> <br />After tqe determination of reaches and their respective Flood <br />Hazard Factors, the entire incorporated area of the ~own of <br />Frisco was divided into zones, each having a specific flood potential <br />or haza~d. Each zone was assigned one of the following flood <br />insurance zone designations: <br /> <br />Zone A: <br /> <br />Special Flood Hazard Areas inundated by <br />the lOa-year flood, determined by <br />approximate methods; no base flood <br />elevations shown or Flood Hazard Factors <br />determined. <br /> <br />Zone AO: <br /> <br />Special Flood Hazard Areas inundated by <br />types of lOa-year shallow flooding <br />where depths are between 1.0 and 3.0 <br />feet; depths are shown, but no Flood <br />Hazard Factors are determined. <br /> <br />Zones A~, A2, and A4: <br /> <br />Special Flood Hazard Areas inundated by <br />the lOa-year flood, determined by <br />detailed methods; base flood elevations <br />shown, and zones subdivided according <br />to Flood Hazard Factors. <br /> <br />Zone B: <br /> <br />Areas between the Special Flood Hazard <br />Areas and the limits of the SOO-year <br />flood, including areas of the SOO-year <br />flood plain that are protected from the <br />lOa-year flood by dike, levee, or other <br />water control structure; also areas <br />subject to certain types of lOa-year <br />shallow flooding where depths are less <br />than 1.0 foot; and areas subject to <br />lOa-year flooding from sources with <br />drainage areas less than 1 square mile. <br />Zone B is not subdivided. <br /> <br />Zone c: <br /> <br />Areas of minimal flooding. <br /> <br />The floop elevation differences, Flood Hazard Factors, flood insur- <br />ance zon~s, and base flood elevations for each flooding source <br />studied in detail in the community are summarized in Table 3. <br /> <br />13 <br />