Castle Rock, Cowlitz River

What happens at each level

1. 48.00 ft

   expect flooding of several roads and low-lying agricultural lands in areas not protected by levees.

2. 51.00 ft

   flooding of buildings and residential areas begins, especially west of the river along Hwy 411 and around Four Corners. Also expect widespread flooding of low-lying agricultural land.

3. 54.00 ft

   expect widespread flooding of residential and business areas, especially west of the river in the Four Corners area and along Hwy 411. Also expect widespread flooding of agricultural land. Levees have historically been threatened of overtopping at this and higher levels.

4. 57.00 ft

   expect widespread and major flooding of homes and property just upstream and downstream of Castle Rock. Impacts include major flooding of the fairgrounds area west of Castle Rock, numerous road closures, and possible overtopping or weakening of portions of the levee protecting Castle Rock, especially sections downstream of the highway bridge.

Written by the local National Weather Service forecast office for this exact gauge.