Rock Island District / About / Offices / Emergency Management / Flood

NOTE: Information provided on this page will update only when the Rock Island District is activated for flood response.

Flood Information for the Rock Island District (Updated: April 28, 2026)

*BASED ON THE 7-DAY QPF AND CURRENT GAGE STATUS APRIL 28 WILL BE THE FINAL HYDROLOGIC OUTLOOK FOR THIS EVENT UNLESS CIRCUMSTANCES CHANGE*

Welcome to the U.S. Army Corps of Engineers, Rock Island District's Flood website. This site was developed to provide current and historical information regarding flooding in the upper Midwest. 

If you are in need of immediate assistance please contact the Emergency Operations Center 24-hour hotline at (309) 794-5101. If your phone call is not answered by a person, please leave a message and we will return your call in approximately 30 minutes or less. 

Please Note: The Corps of Engineers does not issue flood forecasts for any river, anywhere in the United States. The National Weather Service provides weather, hydrologic and climate forecasts and warnings for the United States. Rivergages.com, is a Corps-managed website that provides National Weather Service river forecasting information and can be reached by selecting the RiverGages graphic on the left.

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Recreation Area Status

Flood Forecasts at a Glance

Rock Island District Rainfall Summary

Observed Precipitation: Heavy rain was seen across central and southern Illinois and eastern Missouri over the past 24 hours. These areas received 2-2.5 inches of accumulation, with isolated spots seeing 3-3.5 inches. Northern Illinois, southern Wisconsin, eastern Iowa, and Minnesota saw up to 1 inch of rainfall, and trace to 0.25 inches fell in central Iowa.

Forecast Precipitation: Central and southern Illinois, southern Iowa, and Missouri are forecasted to receive up to 0.5 inches on Day 1 (Tuesday). Dry conditions prevail from Day2 (Wednesday). Rain returns to the forecast on Day 3 (Thursday) for southern Iowa, Missouri, and central and southern Illinois, with those areas forecasted to receive up to 0.5 inches. Days 4-5 (Friday and Saturday) are forecasted to be dry across the District AOR.

Illinois and Mississippi River Status

Mississippi River: Yesterday’s rainfall primarily affected the lower end of the Mississippi River in the Rock Island District AOR. Stages from Gregory Landing through Saverton are on the rise, with Quincy and Saverton forecasted to crest higher than the prior crests from 19-20 April. There are currently seven gages in minor flood stage (New Boston, Keithsburg, Gregory Landing, Canton, Quincy L&D, Hannibal, and Saverton), and two in moderate flood stage Gladstone and Burlington). Crests at Gregory Landing through Saverton are forecasted in the minor flood stage.

Illinois River: Yesterday’s rainfall was concentrated in the Illinois watershed, particularly downstream of Peoria L&D. Stages there are back on the rise, with two gages in minor flood stage (Havana and Beardstown). The wickets remain down at Peoria and La Grange. Beardstown and La Grange L&D are now forecasted to crest again, higher than their first crests on 23-24 April, with La Grange cresting in minor flood stage and Beardstown in moderate flood stage.

Tributary River Status

Several gages rose or are actively rising due to yesterday’s rainfall.

  • In Iowa, there is currently one gage in action stage and one gage forecasted to rise into action stage.
  • In Illinois, there are currently six gages in action stage, five in minor flood stage, and one in moderate flood stage. Six gages are forecasted to rise into action stage.
  • In Missouri, several gages rose and fell over the past 24 hours, but only one gage remains in action stage.
  • In Wisconsin, there are currently two gages in action stage, four gages in minor flood stage, and one in moderate flood stage.
Select a gage below for the current National Weather Service river forecast.
Collapse All Expand All
Expand List item 31884Collapse List item 31884  Cedar River Basin
Expand List item 31885Collapse List item 31885  Des Moines River
Expand List item 31886Collapse List item 31886  Illinois River
Expand List item 31887Collapse List item 31887  Iowa River
Expand List item 31888Collapse List item 31888  Upper Mississippi River

Reservoir Status

Saylorville Lake: The lake was at elevation 836.0 feet this morning and falling (-0.1 feet since yesterday), using 0.0% of the available flood storage. The outflow was held near 5,100 cfs this morning. The lake is expected to remain near conservation elevation until 06 May, then begin climbing to 837.0 feet by 11 May, using approximately 0.9% of its available flood storage.

Lake Red Rock: The lake was at elevation 741.6 feet this morning and steady (no change since yesterday), using 0.0% of its available flood storage. The outflow was held near 13,100 cfs this morning. The lake is expected to remain near 741.5 feet, using approximately 0.0% of its available flood storage.

Coralville Lake: The lake was at elevation 682.3 feet this morning and rising (+0.2 feet since yesterday), using 0.0% of the available flood storage. The outflow was held near 5,000 cfs this morning. The lake is expected rise to 682.5 feet by 02 May, using approximately 0.0% of its available flood storage.

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Rock Island and St. Paul District Inundation Information

Zoom in on the map to see areas impacted by river levels.