A submerged hatch cover closes a section of the Patapsco River to all traffic

The Coast Guard has created a temporary "safety zone" in a section of the Patapsco River in Baltimore. This zone prohibits all vessels and people from entering without specific permission, to protect divers working to remove a submerged hatch cover.

This is a small, temporary closure, but it shows how quickly authorities can restrict access to critical waterways when unexpected hazards appear. The Patapsco River is a major shipping channel. Even a small, temporary obstruction can create ripple effects for port operations and local traffic.