Divers with Columbia Basin Dive Rescue searched again Tuesday for a 14-year-old Finley boy who is presumed drowned near Burbank early Sunday.
Spokesman Scott Ruppelius said the volunteer agency put divers in the water in an area of the Snake River just south of the Highway 12 bridge to look for Timmy Bowden.
"We're going to do one more dive operation based on another witness description," he said.
After five hours of searching, John Pielli, Columbia Basin Dive Rescue public information officer, said the team had not found Timmy. The volunteers searched more than an acre of land underwater and have checked the area underneath both bridges.
Pielli said the team will start the search again this morning, working their way downriver.
Because the visibility was about two to three feet, the five divers had to cover everything within their arm span, he said. A large sweeping search was not possible.
Timmy was barbecuing with family and friends in Burbank before he went with his father James Bowden, his sister's boyfriend and two family friends to go fishing.
Tayly Stegen of Burbank, the teen's sister, said she was not at the park at the time of the accident, but as soon as the five people were in the boat -- described as a 16-foot johnboat -- and it moved away from the dock, the boat sank.
All but Timmy are known to have made it to shore.
Dive Rescue was called to the boat ramp at Hood Park just before midnight Saturday. No one on the boat was wearing a life jacket, Ruppelius has said. The sunken boat was found 25 feet from the dock.
The Walla Walla County Sheriff's Office and Coast Guard searched the river along with Dive Rescue much of Sunday. The Franklin County Sheriff's Office used its SARbot, an underwater search robot, and Washington State Fish and Wildlife also had a boat searching the water.
Dive Rescue briefly visited the area Monday morning. Three citizens from Kennewick and Burbank also searched the river Monday, but they were called off after contacting the sheriff's office about performing their own dive to search for the missing teen.
Pielli said they are coordinating with the Walla Walla County Sheriff's Office. The Army Corps of Engineers also was able to reduce flow, which improved diving conditions.
w Reporter Kristi Pihl contributed to this report.