Kaskaskia River at Vandalia

Critical Stages

16' - Action

18' - Flood

24' - Moderate

26' - Major

Latest Observation

Updated: 7:00 AM CST 12/16/25

Status: No Flooding

Stage: 2.89 ft

Flow: 0.106 kcfs

Forecast not available for this location.

33.29' - Flood waters reach the instrument shelf of the manometer gage house.

31' - Floodwaters will threaten the wastewater treatment facility near this height.

30.5' - Flood waters reach the floor of the gage house.

27.9' - U.S. Highway 51 south of Vandalia begins to flood near this height.

27.5' - Near this level, the left bank levee just south of the U.S. Highway 51 bridge is overtopped.

26' - The Dively and Vandalia Levees begin to be overtopped.

25.8' - Along South 4th Street, numerous homes begin flooding near the St. Clair Street intersection.

25.5' - South 4th Street begins flooding near and south of Jefferson Street in Vandalia.

23' - Agricultural levee begins to be slightly overtopped. No residences are affected at this level.

19.2' - State Highway J just east of County Road 206 begins to flood near this height.

18' - Flood Stage. Minor flooding begins. Unprotected farmland begins to flood.