Bogue Chitto River near Bush, LA

River level and flood forecast · St. Tammany Parish

Normal2.7 ftas of Mon 3:15 PM

The river is 8.3 ft below flood stage (11 ft).

Forecast to hold near 2.7 ft through Sat, Oct 17, 7 AM.

Flow: 627 cubic feet per second (USGS).

The last 7 days and the forecast

05101520TueThuSatMonWedFriAction 9 ftFlood 11 ftModerate 15 ftMajor 18 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 9:07 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage18 ft
Moderate flood stage15 ft
Flood stage11 ft
Action stage9 ft
Record crest (March 13, 2016)21.36 ft

What floods at each level

From the National Weather Service, highest first.

  • 21.36 ftFlood of Record occurred on March 13, 2016. There will be major flooding along Louisiana Highway 21 near the river. Highway 21 bridge will be closed because of high water and parts of LA Highway 41 east of Bush will be inaccessible.
  • 15 ftHomes near the river along Louisiana Highway 21 will be moderately flooded. The access road upstream of the bridge will remain inundated.
  • 13 ftHomes in low-lying areas on the downstream side of Louisiana Highway 21 near the bridge will flood. The access road upstream of the bridge will remain inundated.
  • 11 ftThe access road upstream of the bridge will flood. The river will leave the main channel on the left bank below the bridge flooding woodlands on either side of Louisiana Highway 21.
  • 10 ftGravel pits upstream of Louisiana Highway 21 will begin to overflow threatening property at lower elevations on either side of Highway 21 in the vicinity of the bridge.

Highest crests on record

  1. 21.36 ft — March 13, 2016
  2. 21.22 ft — April 8, 1983
  3. 19.82 ft — September 2, 2012
  4. 17.5 ft — March 31, 2009
  5. 17.45 ft — January 27, 1990

Recent crests: 12.7 ft (June 18, 2026) · 13.6 ft (May 11, 2026) · 12.89 ft (January 27, 2024) · 11.49 ft (August 28, 2022) · 11.9 ft (March 27, 2022)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BSHL1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.