Regulacje i polityka gospodarcza · 21.12.2012

Intent To Prepare a Draft Supplemental Environmental Impact Statement for Development of a Long-Term Sediment Management Plan of the Mount St. Helens Sediment Retention Structure in the North Fork Toutle River

The U.S. Army Corps of Engineers, Portland District, intends to prepare a Draft Supplemental Environmental Impact Statement (DSEIS) to assess impacts associated with alternatives for the long-term management of the existing Mount St. Helens (MSH) Sediment Retention Structure (SRS) located at river mile 13.2 of the North Fork Toutle River. The MSH SRS is a single-purpose structure constructed in 1987- 1989 to trap and control downstream movement of volcanic sediments eroding from the debris avalanche of Mount St. Helens. The purpose of the long-term management of the existing MSH SRS is to continue to provide flood damage reduction benefits to downstream communities along the Cowlitz River including Longview, Kelso, Castle Rock, and Lexington, Washington.