The U.S. Army Corps of Engineers has released groundbreaking 3D sonar images that reveal the extent of the debris caused by the collapse of the Francis Scott Key Bridge in Baltimore. These images highlight the obstacles that the Corps will have to overcome as it works towards reopening a vital shipping channel in May.

Captured by a CODA sonar system on Tuesday, the vivid color images showcase the submerged sections of the bridge's arched steel beams, which must be removed for the channel to be accessible once again. One close-up sonar image zooms in on the wreckage situated in the deepest part of the federal Port of Baltimore Shipping Channel, featuring a prominent main support of the Francis Scott Key Bridge.

Another image provides a wider-scale perspective, depicting the debris-covered federal channel and one of the temporary alternate channels constructed by the Corps. These temporary channels were created to accommodate empty barges, small tugboats, and survey vessels during the closure of the main channel. They are visible towards the right side of the image.

Additionally, a third image highlights a metal tress framework that is slated for removal by the end of April. Its removal will result in the formation of a limited access channel measuring 35 feet deep and 280 feet wide. This narrower channel will allow larger vessels, including marine tugs, Maritime Administration (MARAD) vessels, and Roll-on/Roll-off (RoRo) shipping vessels, to transit in and out of the Port of Baltimore.

To aid engineers in planning the removal of the bridge wreckage and subsequent dredging operations for the wider and deeper federal channel, the image displays height measurements from the top of the underwater bridge wreckage to the surface of the Patapsco River.

President Joe Biden recently visited the site of the collapsed bridge during his visit to Baltimore last Friday. He pledged that the federal government would cover 100% of the expenses required for the construction of a new bridge. This financial proposal has received support from congressional leaders, signaling a unified effort in addressing the aftermath of the collapse.

The Army Corps of Engineers will continue to navigate these challenges as they diligently work towards reopening the shipping channel in May. The innovative use of 3D sonar technology provides a glimpse into the complexity of the operation, further underscoring the importance of restoring this crucial transportation route in Baltimore's harbor.