The Illinois State Water Survey (ISWS) maintains a collection of
floodplain hydraulic models, as part of its Floodplain
Information public service program.
An inventory list of the models in the ISWS collection is posted on
this website, which provides an easy way
for technical professionals to assess whether the ISWS has
a particular hydraulic model.
The primary source of the model data at the ISWS is the Federal
Emergency Management Agency (FEMA). However, the model list
presented here is not a list of current Flood Insurance Study (FIS) models, nor is
it a complete list of all FIS models. Some of the models
in the collection are not the final models, are superseded in
whole or in part by other models, or are models never submitted to FEMA.
You may browse the collection inventory by watershed name or
county via the links below. A copy of a model may be requested for
a charge. (Most of the
models are available in print copy only.)
