Columbia River at St. Helens

The past week

What floods at each level

• 23 ft

  expect major flooding, especially near Kalama Washington. This river level historically nears the tops of several levees along the Columbia and Lewis Rivers.

• 21 ft

  expect major flooding near St. Helens Oregon and Kalama Washington, along with widespread flooding of lowland agricultural areas.

• 19 ft

  expect widespread lowland flooding. Levee watches have historically been in effect at this and higher stages for Bachelor Island and locations near Lewis River confluence.

• 17 ft

  expect flooding of low lying farmland to begin. Levee watches along the Lewis River historically have been in effect at this level.

• 15.5 ft

  expect flooding of low areas along the Columbia.

Highest crests on record

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