article_snippet: But that didn't occur with the Confederate ironclad.
article_snippet: So on December 21, 1864, just as Union Maj.
article_snippet: Gen. William T. Sherman's hordes of soldiers reached Savannah, the crew likely opened the ironclad water valves.
article_snippet: The sailors used small boats to get to shore and began a 20-mile walk from Savannah.
highlights_snippet: A Civil War ironclad must be moved so the shipping channel can be deepened .
  
highlights_snippet: Wreckage lies a couple miles from Savannah's famous River Street .
  