Floodplain Management in Illinois - Illinois Department of Natural ...

Agricultural Structures
Variances are allowed for:
Pole frame buildings
Steel grain bins
Steel frame corn cribs
General purpose feeding barns open
on one side
Variances are not allowed for:
Livestock confinement buildings
Poultry houses
Dairy operations
Similar livestock operations
IL
State Specific
Guidance
Important
Information
Farm houses are not
agricultural structures.
Contact IDNR/OWR
for additional guidance
on variances for
agricultural structures.
Non-elevated agricultural structures must be considered on a sitespecific
basis and may be permitted only by a variance. Applicants
must show that sites are in “wide, expansive floodplain areas” and
no other alternative location outside of the Floodplain exists.
The best flood protection is to elevate agricultural buildings, but certain types can be approved
by variance if they are “wet floodproofed.”
30
ILLINOIS QUICK GUIDE