KASKASKIA RIVER

River Levels Streamflow Hydrology
November 21, 2024

TOTAL DISCHARGE (CFS)

SUMMARY

Last Updated 2024-11-20
Discharge Volume 7,168 ACRE-FT
Streamflow 3,614.0 cfs
-706.0 cfs (-16.34%)
Percent of Normal 96.93%
Maximum 129,500.0 cfs
2015-12-30
Seasonal Avg 3,728 cfs

Total streamflow across the Kaskaskia River was last observed at 3,614 cfs, and is expected to yield approximately 7,168 acre-ft of water today; about 97% of normal. Average streamflow for this time of year is 3,728 cfs, with recent peaks last observed on 2015-12-30 when daily discharge volume was observed at 129,500 cfs.

Maximum discharge along the river is currently at the Kaskaskia River Near Venedy Station reporting a streamflow rate of 1,280 cfs. However, the streamgauge with the highest stage along the river is the Kaskaskia River At New Athens with a gauge stage of 68.87 ft. This river is monitored from 8 different streamgauging stations along the Kaskaskia River, the highest being situated at an altitude of 650 ft, the Kaskaskia River At Chesterville.

The Kaskaskia River flows for a length of 325 miles through central and southern Illinois before joining the Mississippi River. The river is known for its role in early French exploration and settlement in the area. It has a drainage area of 5,746 square miles and is heavily utilized for agricultural purposes. The Kaskaskia River is also home to several reservoirs and dams, including Carlyle Lake, which is the largest man-made lake in Illinois with a surface area of 26,000 acres. The lake is utilized for recreational activities such as boating, fishing, and camping. The river also provides water for municipal, industrial, and agricultural use. The Kaskaskia River has played a significant role in the history and development of Illinois and remains an important natural resource for the state.

YEAR OVER YEAR DISCHARGE (CFS)

Streamflow Conditions
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Kaskaskia River At Chesterville
USGS 05590950
16 cfs 29.6 ft 15.33
Kaskaskia River At Cooks Mills
USGS 05591200
203 cfs 3.54 ft -7.22
Kaskaskia River At Shelbyville
USGS 05592000
309 cfs 7.54 ft 0.99
Kaskaskia River Near Cowden
USGS 05592100
417 cfs 4.13 ft 0
Kaskaskia River At Vandalia
USGS 05592500
444 cfs 4.66 ft 7.11
Kaskaskia River At Carlyle
USGS 05593000
582 cfs 7.56 ft -0.86
Kaskaskia River At New Athens
USGS 05595000
789 cfs 68.87 ft -60.95
Kaskaskia River Near Venedy Station
USGS 05594100
1280 cfs 5.65 ft -5.76
History of the River

The Kaskaskia River is a tributary of the Mississippi River, approximately 325 miles (523 km) long, in central and southern Illinois in the United States. The second largest river system within Illinois, it drains a rural area of farms, as well as rolling hills along river bottoms of hardwood forests in its lower reaches. The lower reaches of the river have been canalized to allow barge traffic.
"Cascasquia" is an alternative, supposedly more French, spelling of "Kaskaskia" that is sometimes encountered. It was named after a clan of the Illiniwek encountered by the early French Jesuits and other settlers. "Okaw River" was an alternative name for the Kaskaskia that persists in place names along the river, including Okawville, and in a major tributary, the West Okaw River.

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Watershed River Levels

1170

Cubic Feet Per Second

2290

Cubic Feet Per Second

492

Cubic Feet Per Second

325

Cubic Feet Per Second