South Boston Naval Annex

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South Boston Naval Annex
South Boston, Massachusetts
South Boston Naval Annex and South Boston Army Base, circa 1958.jpg
The Annex, circa 1958. In this image, South is on top.
Type Shipyard annex
Site information
Controlled by United States Navy
Site history
Built 1920
In use 1920 — 1974

The South Boston Naval Annex, was a 167-acre (68 ha) United States Navy shipyard annex located in South Boston. It was the annex of the Boston Navy Yard, and was operational from the 1920 to 1974, when it was closed along with the shipyard. The annex is also home to Dry Dock Number 3, the one of the largest dry docks on the East Coast.



The Department of Defense purchased a large part of the Commonwealth Flats in 1920, and split up the land between the Naval Annex and the South Boston Army Base. At this time, the Navy began construction of buildings, which would continue up until World War II.[1] Rail service to the annex was provided by Track 61.[2]

World War II

At the South Boston Annex, work was started in March 1940 on a quay wall and wharf and on a machine shop 1,300 feet (400 m) long and 500 feet (150 m) wide. The following spring a new power plant project was undertaken, to provide six boilers, a compressor and a primary connection to the Edison system. An additional waterfront project, comprising two 980-foot (300 m) timber piers and a steel sheet pile bulkhead, was started in the summer of 1941, followed in September by construction of an additional shop 420 feet (130 m) long and 120 feet (37 m) wide.[3]

In December 1941, work was started on a graving dock, 693 feet (211 m) long, 91 feet (28 m) wide at the entrance, and 32 feet (9.8 m) deep over the blocks, for the repair of cruisers. This dock, which was built inside a cellular steel pile cofferdam, was completed and placed in service in March 1943. The cofferdam was later incorporated as part of Piers 5 and 6.[3]

Work was also undertaken in 1941 on a 500-man barracks for ship's crews, necessitated by the fact that with three-shift repair work, the crews could not be quartered aboard.[3]

The expansion of the Annex continued with the construction of an additional 900-foot (270 m) pier, started in the fall of 1942, a rigger's shop, a paint shop, and a general shop, started in November of that year, and extensive improvements and additions to utilities, streets, tracks, and equipment.[3]

Post-War to closure

After the war, the annex was used to store ships that were placed in reserve. In 1974, the Boston Navy Yard was closed, and the annex became the Boston Marine Industrial Park after the City of Boston purchased the land.[1]

Present day

Dockside crane on wide gauge tracks at Dry Dock Number 3

Today, the former yard is home to the various companies which have moved in over the years, having been integrated into the larger South Boston Waterfront. Sail Boston has also used the land to host ships when they are in port as well, along with the South Boston Army Base's land, which now operates as the Black Falcon Cruise Terminal under ownership of the Massachusetts Port Authority. When the MBTA's Red Line was extended in the early 80's Much of the dirt and fill ended up filling in many of the piers shown in the photo anove.

On August 7, 1992 the Cunard luxury liner Queen Elizabeth 2 grounded on an uncharted rock in Nantucket Sound. As Dry Dock Number 3 was the only dry dock nearby capable of accommodating the QE2. The QE2 was repaired and was able to resume her duties.

Another ship to use Dry Dock Number 3 was the former USS Massachusetts (BB-59) from November 1998 to March 1999.

Many of the buildings and cranes of the Navy Annex still stand, with their numbers being maintained. Dry Dock Number 3 is also being actively used by a company to repair ships - mostly those of the US Navy, United States Maritime Service and Military Sealift Command.

See also


 This article incorporates public domain material from the Naval History & Heritage Command document "Building the Navy's Bases in World War II" (retrieved on 2012-07-04).

  1. 1.0 1.1 "History of the Park". Boston Marine Industrial Park. Retrieved 4 July 2012.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "History of the Park". Boston Marine Industrial Park. Archived from the original on 9 March 2012. Retrieved 25 December 2013.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. 3.0 3.1 3.2 3.3 "Building the Navy's Bases in World War II". Naval History & Heritage Command. Retrieved 4 July 2012.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

External links

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