BALTIMORE (AP) — After weeks of preparation, crews are scheduled to conduct a controlled demolition Sunday to break down the largest remaining span of the collapsed Francis Scott Key Bridge in Maryland, which came crashing down under the impact of a massive container ship on March 26.

The steel span landed on the ship’s bow after the Dali lost power and crashed into one of the bridge’s support columns shortly after leaving Baltimore. Since then, the ship has been stuck among the wreckage and Baltimore’s busy port has been closed to most maritime traffic.

Six members of a roadwork crew plunged to their deaths in the collapse. The last of their bodies was recovered from the underwater wreckage earlier this week. All the victims were Latino immigrants who came to the U.S. for job opportunities. They were filling potholes on an overnight shift when the bridge was destroyed.