Missouri River at Washington

1. 34.50 ftThe railroad crossing at Lafayette Street floods near this height.
2. 33.00 ftUnion Pacific Railroad tracks begin to flood in town.
3. 32.50 ftMissouri Valley Levee District Section 1 protecting farms between Treloar and Marthasville is overtopped near this height.
4. 32.00 ftThe Highway 47 bridge closes near this height. Southbend Drive between Ninth Street and Steamboat Street closes near this height. Secondary buildings at the old Water Treatment Plant flood. The Missouri Valley Levee District Section 2 south of Marthasville will overtop near this height.
5. 31.90 ftNinth Street and International Avenue begin flooding near this height.
6. 30.90 ftWestlink Drive begins flooding near the recycling center.
7. 30.20 ftEast Fifth Street at Old Highway 100 and Westlink Drive between Rawlings Sporting Goods and West Main Street both close near this height. Also, Missouri State Highway F along Femme Osage Creek northwest of Defiance will be closed due to backwater near this height.
8. 30.00 ftThe West End Lift Station at Front Street and Tiemann Drive in Washington flood near this height.
9. 29.40 ftWest Main and Tiemannn Drive begins flooding near this height.
10. 29.00 ftState Highway 47 begins to flood near Augusta Bottom Road and at Lake Creek Bridge near the Highway 94 turnoff to Dutzow.
11. 27.60 ftNear this height...Missouri Highway 94 begins flooding near Terry Road about a mile southwest of Matson.
12. 26.70 ftThe Holtmeier Levee along the right bank 4 to 5 miles northwest of Washington will overtop near this height.
13. 26.50 ftThe Tuque Creek levee along the left bank between Marthasville and Washington and the Labadie Bottom and St. Albans levees will overtop near this height.
14. 26.00 ftAgricultural land on the left bank begins to flood. St. Albans Partners levee will overtop near this height.
15. 24.50 ftAugusta Bottom Road begins flooding east of Highway 47.
16. 23.80 ftCallaway Fork Road north of Highway F begins flooding in western St. Charles County.
17. 23.50 ftRiverfront Trail 2.25 miles east of the last bench in the woods floods.
18. 21.00 ftWastewater plant turns pumps on.
19. 17.50 ftLower River front parking lot is closed
20. 2.00 ftThis level represents the end of the city boat ramp. Below this level, the boat ramp drops straight down, making it dangerous for boats to safely launch into or be taken from the river.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Most recent crests

• May 1, 2024: 22.69 ft
• May 6, 2022: 21.66 ft
• June 29, 2021: 24.33 ft
• April 13, 2021: 21.22 ft
• March 19, 2021: 24.50 ft
• June 11, 2020: 20.51 ft
• May 31, 2020: 22.35 ft
• March 21, 2020: 22.05 ft
• January 12, 2020: 22.83 ft
• October 12, 2019: 21.96 ft

• UpstreamMissouri River at Hermann
• DownstreamMissouri River at St. Charles

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued routinely year-round. 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.