JACKSONVILLE, Fla. -- The search continues for a 46-year-old woman who was thrown from a vehicle and fell 150 feet into the St. Johns River after a crash on the Mathews Bridge Thursday night. The 13-year-old boy who was with her waits and hopes that his mother is found alive.

Investigators said they're not sure why Donna Campbell lost control of the Jeep Wrangler just after 7 p.m. While the vehicle was on the wet grating at the top of the span, it hit the inside wall, spun around and hit the outside railing, flinging her from the vehicle and over the side of the bridge.

"The driver was ejected out over the railing into the St. Johns River," Florida Highway Patrol Lt. Bill Leeper said. "The 13-year-old was also ejected out onto the pavement. He had minor injuries and was treated at the scene."

The crash shut down traffic on the bridge for several hours as several agencies searched the waters below the bridge for any signs of the mother.

The teen -- identified as Adam Lee Campbell but called A.J. by his family -- stayed at the scene Thursday night waiting for any news from the search.

The Jacksonville Sheriff's Office is working with the FHP to coordinate a continuing search for the woman. The search was suspended around midnight and resumed early Friday morning. A Coast Guard boat then suspended search efforts at 8:15 a.m. Friday, but boats and divers from local agencies and Florida Fish and Wildlife continue to search for Campbell.

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Family Of Woman Ejected From Vehicle Waits, Hopes City, State Officers Search For Woman Thrown From Bridge

As of Friday afternoon, divers and helicopters were still searching the river, and crews set up a base of operations at the Metro Park docks.

Because of weather conditions, they believe the body could surface later Friday. Officials said once her body comes back to the surface, the tide could carry her anywhere.

"She'll be found soon," Leeper said. "Hopefully sooner than later."

Campbell and other family members were returning home from the Amtrak station, heading eastbound on the bridge. Her 21-year-old daughter, Cecelia Lee, was driving in front of them and saw the accident in her rearview mirror.

"It's very sad, and if they had been wearing their seat belt, this would not have happened," Leeper said.

Police told Channel 4 that at least 281 accidents were recorded on the Mathews Bridge in the past year, and some people claim the metal grating on the bridge makes the bridge a dangerous place to drive.

A disgruntled driver filed suit over the safety of the bridge last month. The city and the Florida Department of Transportation say they are looking into it. There are preliminary plans to replace the bridge, but that could take 10 years and cost more than $700 million.

Channel 4 has a crew at the scene and will report any developments in the search as they occur.

On the Net: http://www.mathewsbridge.com/