Charlestown Navy Yard, Pier 11, Charlestown Waterfront at confluence of Little Mystic Channel & Mystic River at northernmost ent of Navy Yard, Boston, Suffolk County, MA

Significance: Pier 11 is significant as the last pier built at Charlestown Navy Yard. It is also the largest. It was originally a narrow timber pier constructed during World War II to serve in degaussing ships. It was demolished and rebuilt during the mid-1950s to accommodate maintenance on aircraft carriers.
Survey number: HAER MA-90-68
Building/structure dates: 1946 Initial Construction
Building/structure dates: 1955-1957 Subsequent Work