SiteTitle • | 100-Year Floodplain in Illinois | [X] |
| 1: | | Title: | | | | Volume/Number: | 2009 August 6 | | | Issuing Agency: | | | | Description: | Map of 100-Year floodplain in Illinois. The 100-year floodplain represents that portion of the topography that would be inundated during a flood event which has a 1% chance of occurrence in any given year. The mapped 100-year floodplain area represents the best available data as of July 2009. | | | Date Created: | 12 18 2009 | | | Agency ID: | | | | ISL ID: | 000000023235 Original UID: 11824 FIRST WORD: 100 | |
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