33.1' - Near this height, water will begin to flood U.S. Highway 54 on the Illinois side between the Champ Clark bridge and the levee.
29.5' - The boat house floods.
28.6' - The floodwall at the sewage treatment plant is overtopped, forcing the plant shutdown.
28.4' - This is the RECORD FLOOD LEVEL that was reached on July 28 1993.
28.3' - This represents the height of the railroad tracks along Water Street.
28' - Water reaches low steel on railroad bridge in Louisiana.
27' - The Sny Island Cell #2 Levee is overtopped. This flood level was reached on April 24 1973.
26' - Floodgates and sandbags are used to protect the city water treatment intake.
25.9' - Near this height the main floor of the Two Rivers Marina off U.S. Highway 54 begins flooding.
25.5' - The south end of Main Street in Louisiana begins flooding.
25.25' - Missouri Highway 79 from County Road 115 to County Road 117 is closed northwest of Louisiana.
23.5' - Sny Levee District starts mobilizing to close levee.
23' - Numerous houses and businesses in southeast Louisiana begin to flood.
22.8' - Highway 79 is closed at Route D south of Louisiana near the Dyno-Nobel plant and Calumet plant.
21.7' - Floodgates are installed at the city sewage treatment facility.
21.5' - Water encroaches both shoulders of State Highway 79 about one half mile south of Louisiana at the Junction of County Road D. Also at this level low sections highway 79 in Louisiana are flooded. Motorists are detoured onto side streets. A business at the SW corner of Highway 79 and Alabama begins flooding.
21.3' - Highway 79 near Alabama Street at Gladney's car lot is closed.
21' - Highway 79 begins flooding near 3rd Street on the south side of Louisiana.
20.8' - Near this height, the railroad bridge below the mouth of Noix Creek is closed. Above this height, the bridge is unable to open to vessel traffic.
20.2' - Illinois Street between Main and Highway 79 begin flooding.
19.8' - Entrance to Noix Creek Campground begins flooding.
19.6' - Maryland Street at 4th Street by the Town Branch bridge begins flooding near this height.
17' - The parking area at the boat house floods.
15' - The first quarter mile of Edison Avenue beyond the railroad tracks begins flooding near this height.
12.2' - For barge navigation, the Corps will attempt to keep the river at or below this level. Year-round target levels are between 11.5 and 12.2 feet.