https://gcaptain.com/baltimore-bridge-salvage-and-wreck-removal-megathread/
Baltimore Bridge Collapse: Explosive Salvage
Mike Schuler
May 8, 2024: Charges to Be Used on Bridge Section Over Dali
The Key Bridge Response Unified Command plans to use small charges, i.e. explosives, to make precision cuts to remove a large section of the Francis Scott Key Bridge wreckage from the bow of the Dali.
The method will create smaller sections for easier removal by cranes and barges.
“We remain focused on restoring the Marine Transportation System, while ensuring the protection of the public and the environment,” said Capt. David O’Connell, Key Bridge Response Federal On-Scene Coordinator. “By using precision cuts, we reduce risks to our personnel and can safely and efficiently continue clearing the channel for the Port of Baltimore.”
The Unified Command coordinated with the Maryland Department of Emergency Management to issue a cellular notification for a controlled demolition. Hearing protection is not required outside of the 2,000-yard noise radius, with sound levels comparable to a standard fireworks show lasting 2-5 seconds. Maryland State Police and other law enforcement agencies will provide perimeter security for an area where spectating is discouraged.
Crew members are expected to remain on board the Dali during the operation.
The use of charges was previously used during the controlled demolition of the Harry W. Nice Memorial Bridge in Charles County, Maryland in March 2023.
A 2,000-yard safety zone around the bridge remains in effect.
The U.S. Army Corps of Engineers has released a video illustrating the operation:
https://twitter.com/i/status/1788204263967260962
1:21 video