Baltimore, MD  - Apr.. 2, 2024 - New imagery, supplied by the U.S. Navy Naval Sea System Command Supervisor of Salvage and Diving, shows the wreckage resting at the bottom of the river where the Francis Scott Key Bridge once stood.

According to the U.S. Army Corps of Engineers, Baltimore District, the underwater sonar imaging tool, known as CODA Octopus, is the primary survey tool used by divers, with visibility clouded to just one to two feet because of the four to five feet of mud and loose bottom of the Patapsco River.

Divers are working in virtual darkness because when lit their view is similar to driving through a heavy snowfall at night with high-beam headlights on -- divers must be guided via detailed verbal directions from operators in vessels topside viewing real-time CODA imagery.