Mississippi River at Alton

The past week

What floods at each level

• 39 ft

  Near this height, floodwaters will reach the floor of the Lincoln Shields gazebo in West Alton, Missouri.

• 38.7 ft

  Near this height U.S. Highway 67 will be completely closed.

• 36.7 ft

  The railroad between Wood River and Alton begins flooding near this height.

• 32 ft

  At this height, the waterpark playground will become inundated.

• 31.2 ft

  Near this height, the southbound lanes of U.S. Highway 67 will begin flooding, forcing the detour of southbound traffic onto the northbound lanes.

• 30.9 ft

  Near this height, water will begin flowing over Riverlands Way between Highway 67 and Mel Price Locks and Dam. This road is a part of the Consolidated North County levee, so this is the point when water begins gradually flowing onto the protected farmland and farm homes behind the levee.

• 30.8 ft

  The intersection of West Broadway (Illinois 100) and U.S. Highway 67 will begin flooding near this height.

• 29.7 ft

  Floodwater begins damaging property in Elsah, Illinois and in Portage des Sioux, Missouri near this height.

• 29.2 ft

  Near this height, floodwater should begin to impact the base of the Ardent Mills grain bins.

• 28.2 ft

  At this height, water will cover the sidewalk near the waterpark playground.

• 28 ft

  Near this height, the flood wall around the Argosy Casino will overtop, flooding the casino parking lot.

• 27.2 ft

  At this height, Bloch Marine Service at Harbor Point Yacht Club begins flooding.

• 26.6 ft

  Route 100 at Alton closes near this height.

• 25.5 ft

  Highway 100 will begin flooding at Clifton Terrace Street within 2 feet of this height.

• 24.6 ft

  Missouri Highway 94 from Alta Villa Road to Feltes Drive will be closed near this height.

• 24.5 ft

  Highway 100 begins flooding at the Clifton Terrace Street intersection near this height.

• 24.2 ft

  The Wood River South Levee flood gate is closed near this height.

• 23.3 ft

  Near this height, the outer road between Riverlands Way and the Lincoln Shields Access Road will close due to flooding.

• 23.2 ft

  Yachtview Drive begins flooding along the entrance to Harbor Point Yacht Club near this height.

• 22.2 ft

  Missouri Highway 94 between Portage Des Sioux and West Alton begins flooding. Yachtview Drive begins flooding along the entrance to Harbor Point Yacht Club.

• 21.7 ft

  At this level, Highway 94 and the east end of Harbor Point Road off of Missouri Highway 94 north of West Alton begin flooding. Also, the access road the Lincoln Shields recreation area off of U.S. Highway 367 just west of the Clark bridge begins flooding.

• 20.7 ft

  During open river conditions (Mel Price gates all open), Alta Villa Road off of Highway 94 begins flooding and is closed.

• 19.7 ft

  During open river conditions (Mel Price gates are open), Dresser Island Drive begins flooding near this level.

Highest crests on record

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