Dardenne Creek at St. Peters

1. 28.00 ftHomes south of Mexico Road may begin flooding near this height.
2. 27.00 ftThe University of Missouri extension office and storage buildings will begin flooding near this height.
3. 26.00 ftHomes along Oak Drive may begin flooding near this height.
4. 24.50 ftUniversity of Missouri Agricultural Extension parking lot and greenhouse begins to flood near this level.
5. 23.70 ftNear this height, MODOT closed I-70 in both directions during the flood of December 2015.
6. 23.50 ftAt this height, water begins entering the greenhouse and the lower portion of the parking lot at the University of Missouri Extension Office on Brown Road.
7. 23.10 ftAt this height, flood waters begin to impact the vegetable gardens at the University of Missouri Extension Office on Brown Road.
8. 23.00 ftNear this height, a levee may begin overtopping near the railroad tracks at Highway C, threatening the Salt River Landscaping facility. Also, a residence north of Mexico Road begins flooding near this height.
9. 22.50 ftNear this level the agricultural levee between the creek and Highway C becomes overtopped, flooding Highway C and the cropland to the northwest of Highway C.
10. 22.30 ftNear this height, the Brown Road underpass beneath the railroad bridge begins flooding at Brown Road Park.
11. 22.00 ftBack yards begin flooding behind homes south of Mexico Road and along Oak Drive near this height.
12. 20.70 ftThe right hand bank floods at the ball fields at Sports Center Park.
13. 20.50 ftThe athletic fields at the Woodlands Sports Park and at the Tony Glavin Soccer Complex begin flooding near this height.
14. 20.00 ftOutdoor exercise area at the St. Charles County Animal Control begins flooding near this height.
15. 19.39 ftBall fields at Sports Center Park become flooded.
16. 19.20 ftLone Wolff Park begins flooding just south of Main Street/Highway C, just west of St. Peters.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• June 5, 2025: 19.03 ft
• April 5, 2025: 21.43 ft
• November 6, 2024: 21.42 ft
• July 16, 2024: 18.67 ft
• July 26, 2022: 23.50 ft
• May 5, 2022: 19.46 ft
• March 18, 2021: 18.25 ft
• August 9, 2020: 21.67 ft
• January 18, 2020: 18.54 ft
• January 12, 2020: 22.09 ft

• Dardenne Creek at O'Fallon
• Missouri River at St. Charles
• Cuivre River at Old Monroe
• Mississippi River at Winfield Lock and Dam 25
• Mississippi River at Grafton
• Meramec River at Valley Park
• Meramec River at Eureka
• Meramec River at Fenton

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

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.