SEATTLE (AP) — The Army Corps of Engineers is increasing the amount of water flowing from Hanson Dam following a series of tests at the dam’s reservoir on the upper Green River.
Heavy rains in January 2009 damaged a reservoir wall, limiting the amount of water the dam can hold. That’s increased the flood danger in the heavily developed Green River Valley south of Seattle.
The corps has been testing interim repairs at the flood-control dam, including raising the water level this spring. The level now is being lowered, which will significantly increase the flow in the river through Saturday. The corps says the flow levels will be far below flood stage, but people using the river should exercise caution.
