Workers from LKE Corp. build a breakwater dam system this week using root balls and pilings for an Army Corps of Engineers project designed to control sediment flows on the Toutle River. A long “cross valley structure,” made of piles and joined by heavy planks, will steer the river through several turns. Slowing the current should force the river to drop much of its silt.
Workers from LKE Corp. build a breakwater dam system this week using root balls and pilings for an Army Corps of Engineers project designed to control sediment flows on the Toutle River. A long “cross valley structure,” made of piles and joined by heavy planks, will steer the river through several turns. Slowing the current should force the river to drop much of its silt. TYLER TJOMSLAND/THE DAILY NEWS (LONGVIEW)
Workers from LKE Corp. build a breakwater dam system this week using root balls and pilings for an Army Corps of Engineers project designed to control sediment flows on the Toutle River. A long “cross valley structure,” made of piles and joined by heavy planks, will steer the river through several turns. Slowing the current should force the river to drop much of its silt. TYLER TJOMSLAND/THE DAILY NEWS (LONGVIEW)

Targeting silt from St. Helens

August 14, 2010 12:00 AM