Dardenne Creek at O'Fallon, MO

River level and flood forecast · St. Charles County

Normal0.7 ftas of Mon 3:05 PM

The river is 13.3 ft below flood stage (14 ft).

Flow: 3 cubic feet per second (USGS).

The last 7 days and the forecast

-505101520TueWedThuFriSatSunMonAction 12 ftFlood 14 ftModerate 16 ftMajor 18 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage18 ft
Moderate flood stage16 ft
Flood stage14 ft
Action stage12 ft
Record crest (December 27, 2015)19.85 ft

What floods at each level

From the National Weather Service, highest first.

  • 26.3 ftHeight of the Highway K bridge road surface.
  • 20.39 ftHeight of the levee along the left bank downstream from the Highway K bridge.
  • 18.2 ftTop of the left bank upstream levee protecting the soccer fields and golf complex.
  • 18.1 ftHeight of the right bank levee upstream from the Highway K bridge.
  • 17.3 ftWater floods the right bank at the Highway K bridge.
  • 16.3 ftHeight of the right bank floodplain upstream of the Highway K bridge.
  • 15.3 ftHeight of the soccer fields west of Highway K.
  • 14.4 ftHeight of the base of the soccer fields nearest Highway K.

Highest crests on record

  1. 19.85 ft — December 27, 2015
  2. 19.76 ft — September 14, 2008
  3. 19.14 ft — June 24, 2000
  4. 18.56 ft — January 11, 2020
  5. 17.49 ft — May 21, 2013

Recent crests: 15.91 ft (April 5, 2025) · 14.96 ft (November 5, 2024) · 15.42 ft (July 26, 2022) · 14.93 ft (May 5, 2022) · 16.06 ft (August 9, 2020)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (DCWM7); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.