Kaskaskia River at Vandalia

The past week

What floods at each level

• 33.29 ft

  Flood waters reach the instrument shelf of the manometer gage house.

• 31 ft

  Floodwaters will threaten the wastewater treatment facility near this height.

• 30.5 ft

  Flood waters reach the floor of the gage house.

• 27.9 ft

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

• 27.5 ft

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

• 27.2 ft

  At this height, Thrill Hill Road (County Road 1800) is flooded from U.S. 51 for about 3000 ft westward.

• 27.1 ft

  At this height about 75% of County Road 2000 between US 51 and the bridge over the Kaskaskia River is flooded.

• 26 ft

  The Dively and Vandalia Levees begin to be overtopped.

• 25.8 ft

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

• 25.5 ft

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

• 23 ft

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

• 19.2 ft

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

• 18 ft

  Flood Stage. Minor flooding begins. Unprotected farmland begins to flood.

Highest crests on record

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