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| Critical Stages |
| 14' -Action |
15' -Flood |
16.5' -Moderate Flood |
18' -Major Flood |
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| Forecast not available for this location. |
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| Observation history unavailable for thie location. |
| Flood Impacts |
| 24.0 | Water reaches the bottom of the Grange Road bridge deck. |
| 19.3 | Water reaches the bottom of the Illinois Highway 82 bridge deck in Geneseo. |
| 18.0 | Water inundates 10th Avenue in south Colona. Water affects levees downstream of Illinois Highway 84. |
| 15.5 | Water affects Illinois Highway 84 north of U.S. Highway 6 in the Colona area. |
| 14.5 | Water affects some roads around south Colona. |
| Historical Crests |
Low Water Records |
1) 18.77 ft on 10/18/1998
2) 18.59 ft on 01/23/1969
3) 17.93 ft on 06/05/2002
4) 16.75 ft on 06/22/1974
5) 16.65 ft on 01/24/1965
7) 16.14 ft on 02/20/1951
9) 16.00 ft on 04/22/1973
10) 15.98 ft on 05/18/1974
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1) 2.40 ft on 09/13/2005
2) 2.70 ft on 09/19/2003
3) 3.20 ft on 09/18/1999
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Data provided by NOAA Advanced Hydrologic Prediction Service
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