The only difference between adventure and disaster is preparedness.

Saturday, January 15, 2011

Latest River Levels

The Portland National Weather Service has issued new hydrograph predictions for river levels in Cowlitz County. According to their latest data, they anticipate that the Cowlitz River at Castle Rock will reach flood stage sometime Sunday evening if the steady rains continue. Flood stage is 48 feet and the river is expected to crest at 48.23 ft. This means there is the potential for flooding on several roads and low-lying agricultural areas, all the usual suspects. The Cowlitz River at Kelso will reach flood stage Sunday evening. Flood stage in Kelso is 21.5 ft and the river is expected to crest at 21.78 feet. This means flooding of low-lying roads, Cowlitz Gardens area and lowlands upstream. At this time the Lewis River at Woodland does not appear to be near flood stage. We do not have info on the Kalama or Coweeman Rivers at this time.

1 comment:

Jeff said...

This info is very helpful. As the manager of the Cowlitz River Mfg. Home and RV Park it is important for me to be up to date on river conditions. I have spaces in the lower end of the park that are prone to flooding. Being that we are on a septic system I know the importance of keeping backflow from contaminating the river. Since we have a grandfathered in boat launch we have constructed a temporary retaining wall at the top end of the launch. It will be removed after the threat of flooding is over. It is constructed of railroad ties, bottom layer spiked into the ground and then reinforced with 2x6 plates.