Barges are bringing cranes to Baltimore to help remove bridge wreckage and open shipping route

abcnews.go.com:

Massive barges carrying cranes are heading to Baltimore to begin the challenging work of removing twisted metal and concrete from the collapsed bridge that’s blocking a key shipping route

BALTIMORE — Massive barges carrying cranes streamed toward Baltimore on Thursday to begin the challenging work of removing twisted metal and concrete in an attempt to open a key shipping route blocked by the wreckage of the Francis Scott Key Bridge.

U.S. Coast Guard officials said Wednesday night that the barges were on their way to the spot where the bridge crossed the Patapsco River, but it was not clear when they would arrive.

The devastation at the site of the collapse, which happened when a powerless cargo ship rammed it early Tuesday, is extensive. Divers reached the bodies of two men in a pickup truck near the bridge’s middle span on Wednesday, but officials said they would need to start clearing away the twisted wreckage before anyone could reach the bodies of four other missing workers. Divers are to resume searching once the debris is cleared.

“We’re now moving from a recovery mode to a salvage operation. Because of the superstructure surrounding what we believe are the vehicles and the amount of concrete and debris, divers are no longer able to safely navigate or operate around that,” Col. Roland L. Butler Jr., superintendent of Maryland State Police, said at a news conference Wednesday.

“We have exhausted all search efforts in the areas around this wreckage, and based on sonar scans, we firmly believe that the vehicles are encased in the superstructure and concrete that we tragically saw come down," Butler said.

Butler said his agency would support the unified command during the salvage assessment phase, but he asked for