Big River at Byrnesville
Jefferson County, Missouri
The past week
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What floods at each level
- 30.3 ft
The porch of the upstream left bank residence floods at this level.
- 29.6 ft
The main floor at the Byrnesville mill begins to flood.
- 29.4 ft
The floor of the gage shed begins to flood.
- 28 ft
At this height, several homes along Burgan Grove Road are flooded.
- 26 ft
Based on NWC stage-based categorical flood inundation mapping, at this height water will begin flooding the outfields of the 2 easternmost ball fields at the Northwest Jefferson County Sports Complex.
- 22.4 ft
At this level, Twin Rivers Bridge Road must be closed.
- 20.5 ft
Burgan Grove Road begins flooding near Cottage Grove Road, cutting off access to Cottage Grove Road. Highway W near Hoene Spring is closed as water crosses the pavement.
- 19.3 ft
South Byrnesville Road begins flooding near this level.
- 19.1 ft
Backyards and one basement along Burgan Grove Road 2 miles west of House Springs begin to flood.
- 19 ft
Dutch Creek Road south of Byrnesville and Byrnesville Road near John McKeever Road north of Byrnesville begin to flood.
- 18.1 ft
State Highway BB southeast of Cedar Hill will be closed near this height.
- 18 ft
Cedar Hill Road at Cedar Hill and Klondike Road south of Cedar Hill begin to flood near this height.
- 15.5 ft
Rockford Beach Park at the Highway MM bridge begins flooding.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Aug 20, 1915 | 30.2 ft | 80,000 cfs |
| May 1, 2017 | 30.09 ft | 62,900 cfs |
| Sep 24, 1993 | 29.37 ft | 63,600 cfs |
Flood map
See which streets and areas flood at each water level here. Open the flood map ↗
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