Destined for DFIRMs
Destined for DFIRMs shows areas where the Illinois State Water Survey's CHAMP team is performing engineering studies, collecting information, or incorporating new engineering data submitted by others as Physical Map Revisions (PMRs) to Digital Flood Insurance Rate Maps (DFIRMs), as well as locations of other publicly funded studies.
Training Library
The training library is a collection of informational material created by the CHAMP team. Most of the resources available on this page are instructional videos. These videos can be watched through Illinois Media Space, or downlowded for later viewing.
Topographic Wetness Index
The Topographic Wetness Index (TWI) is an index or indicator of the effect of local topography on runoff flow direction and accumulation. The index is a function of both the slope and the upstream contributing area. TWI data is available for download by county.
Urban Flooding
Urban flooding affects Illinoisians every year. Unlike Riverine flooding, Urban flooding can happen regardless of an area’s distance to a river or lake. This page contains info on urban flooding-related projects CHAMP has worked on.
Story Maps
A story map is a web-based application that shares maps in the context of narrative text and other multimedia content. This page contains links to all the Story Maps produced by the CHAMP team
Building Footprints
ISWS is providing building footprints for every county in Illinois for download in shapefile format. Building footprints from the Microsoft dataset released in 2018 (updated in 2021) are available for each county. LiDAR-derived building footprints generated by ISWS are available for some counties.
Frequently Asked Questions (FAQ)
This page is a collection of frequently asked questions with answers. Some informational graphics have also been included.
Other Resources
A list of links to external resources. These pages are grouped by federal, state, or regional geography.
Resources
