Snowmelt

Adam Cotterell / Boise State Public Radio

The Boise River, which has been over flood stage for months, will drop below that level Thursday. The river has dropped dramatically this week.

The Bureau of Reclamation and the U.S. Army Corps of Engineers have been dropping the amount of water released into the river all week. The river started dropping over the weekend, then fell 500 cubic feet per second on Tuesday and 1,000 cfs on Wednesday.

It will drop another 500 cfs Thursday morning. That will drop the river level at the Glenwood Bridge to 6,750 cfs, that brings it below flood stage which is 7,000 cfs.

Boise Police Department

The Boise River is rising again, to what officials say will be the highest levels so far this year.

Flows from the Lucky Peak Dam will go up Friday morning. An additional 500 cubic feet per second of water will be released. That will bring the flow to 9,300 cfs at the Glenwood Bridge gauge. That’s the highest flow this Spring since officials started pushing more and more water through the river to make room for melting snow in the mountains above Boise.