Rivers in Missouri

Meramec River at Fenton

St. Louis County, MissouriNWS FNNM7USGS 07019210St. Charles office

Below flood stage
1.67ftStage

Observed Wed, Sep 23, 4:15 AM CDT

Flood stage
23.00 ft
Record crest
42.86 ft2015

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood32.00 ft
Moderate flood29.00 ft
Minor flood23.00 ft
Action21.00 ft
  1. 43.60 ftThe house at the corner of Main and Ferry begins flooding near this height.
  2. 43.30 ftThe Sisters Teahouse on Main Street begins flooding near this height.
  3. 42.80 ftDenny Dennis Sporting Goods begins flooding at this height.
  4. 42.70 ftWater reaches the front door of the American Legion Hall.
  5. 41.40 ftThe levee protecting the MSD sewage plant is overtopped.
  6. 39.40 ftThe lower storage level of the American Legion Hall begins flooding.
  7. 37.70 ftOpps Lane residence downstream of gage begins flooding.
  8. 36.80 ftOpps Lane and Tosti's Transmission on Gravois Road begin flooding at this height.
  9. 34.50 ftAn auto glass shop on Gravois begins flooding near this height.
  10. 32.70 ftJoe Clark's Restaurant begins flooding at this height.
  11. 32.50 ftWhite building on Gravois across from Joe Clark's begins flooding at this height.
  12. 32.00 ftBrannan's Marine and Motorsports begin flooding at this height.
  13. 30.80 ftOld 141 begins flooding east of the Gravois intersection.
  14. 30.70 ftHeating and cooling store begins flooding at this height.
  15. 30.50 ftGravois Road begins flooding in Fenton southwest of the new bridge.
  16. 29.50 ftThe Fenton Feed Mill begins flooding near this height.
  17. 25.40 ftWater begins backing onto Water Street at the riverside drain at the Ferry Street intersection.
  18. 25.30 ftRestrooms and playground at Minnie Ha Ha Park and the gazebo at Fenton Park begin flooding near this height.
  19. 25.20 ftMinnie Ha Ha Park gazebo begins flooding.
  20. 22.90 ftAt this height, the entire boat ramp path at Minnie Ha Ha Park will be submerged.
  21. 22.60 ftThe pedestrian walkway along the Meramec Greenway begins flooding near this height about halfway between the Highway 30 bridge and the Greenway gazebo.
  22. 22.20 ftPedestrain trail along Opps Lane begins flooding near the MSD treatment plant.
  23. 19.90 ftNear this height, the top of the boat ramp at Minnie Ha Ha Park will be submerged.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding18%
Moderate flooding8%
Major floodingUnder 5%

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

Crest history

12 crests on NOAA’s list since 2015.

#DateStage
1December 31, 201542.86 ft
2May 3, 201741.88 ft
3June 9, 201932.56 ft
4May 5, 201929.37 ft
5November 9, 202429.24 ft
6April 8, 202527.25 ft
7April 2, 201926.06 ft
8January 14, 202024.80 ft
9March 28, 202324.23 ft
10May 9, 202223.90 ft
11March 9, 202621.69 ft
12May 14, 201619.46 ft

Most recent crests

  • March 9, 2026: 21.69 ft
  • April 8, 2025: 27.25 ft
  • November 9, 2024: 29.24 ft
  • March 28, 2023: 24.23 ft
  • May 9, 2022: 23.90 ft
  • January 14, 2020: 24.80 ft
  • June 9, 2019: 32.56 ft
  • May 5, 2019: 29.37 ft
  • April 2, 2019: 26.06 ft
  • May 3, 2017: 41.88 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

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.

Sources

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.