Editor's note/correction: An earlier version of this incorrectly stated that the man fell from the bridge.
Jeffrey Summerlin, 32, of Garden City, was in the water for about 50 minutes before he was rescued by members of the Boise Fire Dive Team.
Investigators from the Boise Police Department said the incident appears to be a "tragic accident." The Ada County Coroner's Office reported Monday that the cause of death was drowning.
Summerlin, who was wearing waders, was fishing under the ParkCenter bridge. Witnesses told police that he fell into the river, and his waders quickly filled up with water. He was pulled under by the current of the river.
He was recovered from the water downstream at Ann Morrison Park and taken to Saint Alphonsus Regional Medical Center in Boise, where he later died, according to the Ada County Coroner's Office.
Flows in the river have increased within the past week, from about 650 cubic feet per second to about 1,400 cfs. Water temperatures remain very cold - 45 to 50 degrees - and authorities urge people to use caution around and in the water.
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