Rivers in Illinois

Kaskaskia River at Carlyle

Clinton County, IllinoisNWS KCAI2USGS 05593000St. Charles office

Below flood stage
5.90ftStage

Observed Tue, Sep 22, 1:30 AM CDT

Flood stage
16.50 ft
Record crest
33.69 ft1943

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood27.00 ft
Moderate flood23.00 ft
Minor flood16.50 ft
Action15.00 ft
  1. 32.79 ftHeimann levee is overtopped.
  2. 31.80 ftSanta Fe, Hanover, and Germantown levees begin overtopping near this height.
  3. 26.80 ftResidential flooding in Bartelso begins and backwater begins to flood Germantown sanitary sewage facilities.
  4. 23.60 ftNear this height, wastewater treatmeant ponds along the left bank are threatened by floodwaters.
  5. 21.30 ftCabins on the left bank below the gage begin flooding.
  6. 20.30 ftTownship roads downstream in Covington begin flooding near this height.
  7. 18.50 ftNear this level, the Corps will call partners to alert them to these elevated flows anticipated at or above 5000 cfs.
  8. 17.80 ftNear this height, the left bank below the dam near the tailwater gage begins flooding. Minor flooding of park grounds begins.
  9. 16.50 ftNear this height, downstream agricultural fields begin flooding.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding9%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Crest history

102 crests on NOAA’s list since 1908.

#DateStage
1May 21, 194333.69 ft
2January 7, 195031.17 ft
3May 10, 196131.12 ft
4May 9, 190830.80 ft
5August 24, 191530.70 ft
6July 2, 195730.56 ft
7April 3, 193829.60 ft
8April 4, 194527.86 ft
9April 26, 194427.72 ft
10January 17, 193027.50 ft
11October 7, 191127.20 ft
12May 29, 194827.09 ft
13February 18, 194927.01 ft
14July 3, 196026.75 ft
15January 17, 193726.60 ft
16February 15, 195926.55 ft
17May 27, 193326.20 ft
18March 25, 196226.20 ft
19July 2, 195125.95 ft
20March 17, 193925.92 ft
21April 18, 190925.40 ft
22December 14, 196625.30 ft
23May 8, 197025.04 ft
24July 16, 194224.98 ft
25May 21, 194624.83 ft

Most recent crests

  • March 16, 2026: 20.48 ft
  • April 19, 2025: 22.90 ft
  • July 30, 2024: 17.09 ft
  • April 15, 2024: 17.44 ft
  • February 3, 2024: 21.40 ft
  • April 1, 2023: 21.85 ft
  • August 13, 2022: 16.91 ft
  • April 4, 2022: 22.71 ft
  • January 6, 2022: 19.08 ft
  • March 26, 2021: 22.65 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. Forecast river flows take into account forecasts of dam operations and are subject to change.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.