Rivers in Illinois

Illinois River at Dresden Lock (tailwater)

Grundy County, IllinoisNWS CDII2Romeoville office

Below flood stage
487.55ftStage

Observed Tue, Sep 22, 11:00 AM CDT

Record crest
506.44 ft2020

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Action491.00 ft
  1. 505.40 ftHigh water levels cause Dresden Lock to shut down.
  2. 494.50 ftHigh water levels begin to impact shipping interests along the river.

Crest history

13 crests on NOAA’s list since 1957.

#DateStage
1May 18, 2020506.44 ft
2April 19, 2013506.38 ft
3September 15, 2008506.35 ft
4February 22, 2018505.70 ft
5December 4, 1982505.23 ft
6July 14, 1957504.70 ft
7November 29, 1990504.50 ft
8February 22, 1997504.29 ft
9February 24, 1985503.50 ft
10August 25, 2007502.87 ft
11May 2, 2017498.89 ft
12July 23, 2017495.02 ft
13May 11, 2017494.10 ft

Most recent crests

  • May 18, 2020: 506.44 ft
  • February 22, 2018: 505.70 ft
  • July 23, 2017: 495.02 ft
  • May 11, 2017: 494.10 ft
  • May 2, 2017: 498.89 ft
  • April 19, 2013: 506.38 ft
  • September 15, 2008: 506.35 ft
  • August 25, 2007: 502.87 ft
  • February 22, 1997: 504.29 ft
  • November 29, 1990: 504.50 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the North Central River Forecast Center. Graphical forecasts are not available during times of high water, forecast crest information can be found in the local WFO web page.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.