Summit Conduit at Summit

1. 7.00 ftSummit Conduit reaches capacity. Water may overtop low-lying banks along McCook Ditch upstream of Summit Conduit.

Significant river flooding is likely here through September 25.

Weather conditions indicate that significant flooding can be expected during the outlook period.

The five-day outlook is from the Weather Prediction Center with the River Forecast Centers.

Most recent crests

• September 11, 2022: 3.70 ft
• October 25, 2021: 4.00 ft
• June 26, 2021: 6.47 ft

• Des Plaines River at Lyons
• Mainstream Deep Tunnel at McCook Reservoir
• Des Plaines River at Riverside
• Chicago Sanitary and Ship Canal at Stickney
• Salt Creek (IL) at Western Springs
• Flag Creek at Willow Springs
• Des Plaines River at River Forest
• Addison Creek at Bellwood

Forecasts by the North Central River Forecast Center. Forecasts are not available. Only observed stages are available for this point.

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.