BOSTON -- Engineers examining Big Dig tunnels where a Boston woman was killed this week found 362 areas of concern, Gov. Mitt Romney said Friday hours after he took control of the tunnel inspections.

Melina Del Valle, 38, of Jamaica Plain, was killed Monday when a 3-ton ceiling panel fell on her car in the Interstate 90 connector tunnel, crushing her to death.

Romney said that the problems in the tunnels range from missing bolts to gaps between hanger plates and the ceiling. He said that visual inspections are about 80 to 90 percent complete.

"The focus of the inspection is on the epoxy bolt connection," Romney said.

Romney said that he hopes to be able to reopen a portion of the trouble area within a few days.

"Our first priority is to open the South Boston surface entry to the Ted Williams Tunnel and, therefore, on to the airport. That is something that we think can get done early next week," Romney said.

Earlier Friday, the governor signed emergency legislation giving him control over the inspections and the final say over when the Ted Williams Tunnel is reopened. Romney met with the leaders of the Turnpike Authority, engineering and construction staff.

The bill was passed by the Legislature late Thursday night. The governor signed the bill at the Statehouse at about 9:30 a.m. -- one day after officials announced that they had found more than 200 areas where bolts were found to be separating from the tunnel roof.

Romney said that he spoke to the chairman of the National Transportation Safety Board to discuss their investigation process.

"They are focusing on the approximate cause of the accident. We've also been in touch with those looking into criminal action. They, again, are focusing on the cause and possible remedies," Romney said.

Romney stressed that his priority will be "opening the tunnel as quickly as possible, and only when it is completely safe."

Romney has threatened legal action to force Massachusetts Turnpike Authority Chairman Matthew Amorello to step down. Amorello has rebuffed requests to resign.