Sangamon River at Riverton, IL
River level and flood forecast · Sangamon County
Normal2.5 ftas of Mon 12:45 PM
The river is 20.5 ft below flood stage (23 ft).
Flow: 125 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 29 ft |
| Moderate flood stage | 26 ft |
| Flood stage | 23 ft |
| Action stage | 17 ft |
| Record crest (May 19, 1943) | 31.52 ft |
What floods at each level
From the National Weather Service, highest first.
- 30 ftAll lanes of Business 55 covered by water at Riverside Park just north of Springfield.
- 29.5 ftIL Route 54 East of Bridge under water.
- 29 ftDamage begins to residences at the Holiday Estates subdivision in Spaulding.
- 28.5 ftWater begins to impact Riverton sewage treatment plant at 100 E. Jefferson Street.
- 19.9 ftOak Crest Road just east of the river begins to flood.
- 19 ftLarge areas of farmland inundated.
- 18 ftWaters inundate agricultural land near the river.
- 17.5 ftWater starts encroaching on Wheeland Park Campground.
Highest crests on record
- 31.52 ft — May 19, 1943
- 30.13 ft — December 31, 2015
- 30.07 ft — May 14, 2002
- 28.28 ft — April 13, 1994
- 27.17 ft — June 8, 2008
Recent crests: 17.55 ft (June 25, 2026) · 18.03 ft (April 30, 2026) · 17.96 ft (May 1, 2024) · 17.91 ft (April 4, 2024) · 18.78 ft (January 31, 2024)
Up and down the river, and nearby
- UpstreamSangamon River at Monticello, IL
- DownstreamSangamon River at Petersburg, IL
- Sangamon River near Springfield, IL
- Sugar Creek (W-Central IL) near Springfield, IL
- South Fork Sangamon River below Rochester - AUX, IL
- South Fork Sangamon River near Rochester, IL
- Spring Creek (IL) at Springfield, IL
- Lake Fork (Central IL) near Cornland, IL
- Salt Creek (IL) near Greenview, IL
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RVTI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.