Latest News

North Fork Toutle River Sediment Retention StructureMt. St. Helens Sediment Management

Sediment deposits from the 1980 eruption of Mount St. Helens create an ongoing threat of flooding to downstream communities. The United States Army Corps of Engineers (USACE) is evaluating ways to manage flood risk for Castle Rock, Lexington, Kelso and Longview. Access the full article.





Cowlitz River - Allen Street BridgeCowlitz River Survey

The USACE’s conducted a hydrosurvey of the Cowlitz River in November, 2020 to evaluate current flood protection levels. The results of the survey are expected to be released in April, 2021. Access the full article.




Cowlitz Clean Waters Calendar Contest

Middle school students in Cowlitz County were invited to help protect ourStormwater Calendar Contest waters by creating a haiku or work of art that could be featured in the 2020 Cowlitz Clean Waters "Solutions to Stormwater Pollution" Calendar. An event was held in January, 2020 to recognize students’ contributions, announce winners and award prizes totaling $1,200. View the Contest Calendar (PDF).