The Army Corps of Engineers has been meeting with Snohomish County officials to come up with a plan to help deal with high water expected to flow through the debris-laden stretch of Stillaguamish River left behind by the March 22 mudslide.
One option would involve building a temporary berm to protect state Highway 530 from flooding by the North Fork of the Stillaguamish, according to Patricia Graesser, a corps spokeswoman.
“We have offered the county a few different options and they are still assessing alternatives,” Graesser said Thursday morning.
Earlier this week, a state incident response official said that river is forecast to swell to four times its current flows as the runoff season peaks in the weeks ahead.
Without some sort of intervention, there was a “high probability,” that the debris would divert the channel onto the state highway, Mike Asher, an operations sections chief with the state response team. That would pose problems for downstream properties, according to Asher.
County and Corps officials met yesterday, and continue to meet today to a develop a plan, according to corps officials.