Mississippi River at Saverton Lock and Dam 22

The past week

What floods at each level

• 160000 ft

  At this approximate discharge, the Corps will raise the gates out of the water, creating "open river" conditions.

• 28.6 ft

  Water enters the elevated flood building north of the lock house.

• 28 ft

  In Monkey Run, at least a dozen homes are flooded at this level.

• 27.8 ft

  Saverton homes begin flooding near this level.

• 27.3 ft

  The work shop building at Lock and Dam #22 begins flooding at this height.

• 27 ft

  Sny Island Cell #1 levee is overtopped

• 26 ft

  In Monkey Run (north of Saverton), houses begin flooding near this level.

• 25.7 ft

  Water enters Lock house north door and the railroad tracks crossing.

• 25.5 ft

  Homes in Riverview Acres (just south of the lock and dam) begin to flood. Also, North Saverton Road floods near this height.

• 25.2 ft

  Missouri Route E becomes impassable and is closed from Saverton Road near the Hascall Creek bridge to Lock and Dam 22.

• 24.5 ft

  Highway 79 is closed at the Continental Cement Plant.

• 24.2 ft

  Missouri Route E begins flooding at the lowest points.

• 21.8 ft

  At this height, the ties of the BNSF railroad tracks begin flooding.

• 21.4 ft

  Near this level, the lock is closed to navigation. This level will vary with circumstance. Also, BNSF railroad tracks just south of Hannibal are flooded.

• 15.5 ft

  An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level.

• 13.5 ft

  This is the upper navigational limit for the pool at Lock & Dam 22.

• 13.4 ft

  This is the target pool for navigation at Lock & Dam 22.

• 13 ft

  This is the lower navigational limit for the pool at Lock & Dam 22.

• 12 ft

  Buildings in unprotected areas are damaged. At this approximate stage, the Corps will lift all gates out of the river, creating "open river" conditions. This takes place at a discharge of around 160,000 cfs.

Highest crests on record

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