A 250-foot-long section of the crumbling Long Island Bridge was removed Wednesday morning, according to Mayor Martin J. Walsh’s office.
The work on removing Span 11, which was over the main navigational channel, began around 2 a.m., the office said in a statement.
The section was lifted, placed on a barge, and taken to a facility in Everett. Workers continue to prepare spans 12, 13, and 14 for removal. The anticipated removal date for those spans is the week of March 9, the office said.
Those spans will undergo controlled detonation to “drop” them to the water, where they will be immediately placed on a barge, the mayor’s office said.
The bridge, which was opened in 1951, was closed on Oct. 8 because of concerns about its condition.
The $20.6 million demolition project is expected to be finished by the end of April. Walsh Construction Co. of Chicago is doing the work, the mayor’s office said in January.
The city has issued a request for proposals for design of a new bridge, a preliminary step that is expected to cost $9 million. Building a new bridge is expected to cost at least $80 million, the mayor’s office said.
Hundreds of homeless people, those struggling with addictions, and troubled teens received services on the 225-acre island in Boston Harbor until the bridge was abruptly closed.