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Floodplains

Floodplain Development Requirements:

  • Any work done in the 100-year floodplain requires review including:
    • New or expanded structures
    • Reconstruction
    • Any dirt work, such as boring, grading, or excavation
  • Floodplain determined by the Federal Emergency Management Agency (FEMA)
  • State review by the Iowa DNR
  • Local Floodplain Development Permit

State Review:

  • Joint Application required to determine state permits required
  • State review must be completed before local review

Local Floodplain Information

State Floodplain Review Resources

Floodplain Development Education: Flooding in Iowa

County Courthouse

220 N. Washington Ave.
Mason City, IA 50401
Contact · Report a Concern

Courthouse Hours

M-F 8:00 a.m. to 4:30 p.m.
Closed Holidays
Department Hours May Vary