RIVER GAUGE · KASKASKIA RIVER
Kaskaskia River below Carlyle Dam Tailwater
Clinton County, Illinois
Water level412.73 ft
Flow364 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action421.5 ft
Minor flood423.5 ft
Moderate flood431 ft
Major flood435 ft
The past week
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What floods at each level
- 436.69 ft
This is the RECORD FLOOD LEVEL that was reached on May 21 1943.
- 436 ft
Heimann levee is overtopped.
- 435 ft
Major flooding begins. Santa Fe, Hanover, and Germantown levees begin overtopping.
- 430 ft
Moderate flooding begins. Residential flooding in Bartelso and backwater begins to flood Germantown sanitary sewage facilities.
- 424.5 ft
Some cabins just below the dam are inundated.
- 423.5 ft
FLOOD STAGE. Rural damage begins. Township roads in Covington become inundated.
- 421 ft
Left bank in vicinity of the gage overflows with minor flooding of park lands.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| May 9, 1970 | 428.2 ft | — |
| Dec 14, 1966 | 428.2 ft | — |
| Feb 19, 1969 | 427.7 ft | — |
More on Kaskaskia River
UpstreamKaskaskia River at Vandalia
DownstreamKaskaskia River at Carlyle
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