Divers in Minneapolis searched for the final person on the list of those missing in the city's bridge collapse after the recovery of a body in the Mississippi River raised the confirmed death count to 12.

The Hennepin County medical examiner's office identified the remains found Sunday as those of Scott Sathers, 30, of Maple Grove, Minn.

Workers remove a school bus from the Interstate 35W bridge collapse site in Minneapolis on Aug. 12. The confirmed death toll in the collapse has risen to 12.
(Nati Harnik/Associated Press)

Sathers worked in enrolment services at Capella University and was on his way home from work Aug. 1, using his usual route, when the Interstate 35W bridge crumpled amid evening rush-hour traffic.

Divers continued to search for Greg Jolstad, 45, a member of the construction team doing surface repairs on the bridge when it went down.

A vehicle also was pulled from the rubble Sunday. Bad weather on Saturday had hampered recovery efforts.

The cause of the collapse is still under investigation.

Documents obtained by the Star Tribune of Minneapolis for a story published Sunday reveal details of how officials decided to conduct periodic inspections of the bridge rather than repair it in the months before it crumbled.

According to the internal state Department of Transportation documents, officials were ready Dec. 6 to go ahead with a plan to install steel plates at several areas on the bridge as a patchwork fix amid reports that it was structurally deficient, as recommended by an outside consulting firm.

The project was shelved after the state determined the process could actually weaken the bridge.

Instead, officials decided in January to go with periodic safety inspections that would look for any cracks in the beams that would warrant emergency repair. Senior engineer Gary Peterson said contractor URS Inc. assured them that any cracks could be detected before they posed a serious safety risk.

Inspections of 52 steel beams began in May, but were suspended when concrete repairs began earlier this summer.

The inspection strategy was also deemed to be more cost effective, but Peterson and state bridge engineer Dan Dorgan denied that money played a role.

Engineers were to have met Aug. 20 to discuss whether the inspections were effective or if they had to go back to the plating idea.

"You can't help but ask yourself … what should have been done differently," Dorgan said. "As an engineer, you can't be at peace until the cause is found. And even then I have doubts that will bring peace."