Fort Varnum

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Fort Varnum (1941-1948) - An World War II Coastal Fort first established in 1941 at Boston Neck, Washington County, Rhode Island. Named in G.O. 61, 6 Nov 1942, after Brigadier General James Mitchell Varnum, Continental Army. Abandoned in 1948.

Fort Varnum Fire Control Cottages
Fort Varnum Disguised Fire Control Structures

World War II

Part of the Harbor Defense of Narragansett Bay.

Fort Varnum had thee gun batteries emplaced, two of them were transferred from other coastal forts and the third was a battery of four 90mm AMTB guns. Also on the post were a number of fire control batteries disguised as houses and a mine command post.

Fort Varnum World War II Battery (edit list)
Click on Battery links below
No. Caliber Type Mount Service Years Battery Cost Notes
Battery House (2) 2 6" Pedestal 1942-1942-1942-1947 $ 53,955 Guns & carriages from
Battery House (1), Fort Getty
Battery Armistead (2) 2 3" Pedestal 1942-1942-1942-1943 $ 22,185 Guns & carriages from
Battery Armistead (1),
Fort Kearny (3) 1942
Battery AMTB 921 2
Fixed Pedestal
1943-1943-1943-1946 $ 9,141
Source: CDSG
Fort Varnum Plan

Current Status

Active National Guard installation.

Location: Fort Varnum, Boston Neck, Washington County, Rhode Island.

Maps & Images

Lat: 41.446941 Long: -71.43244


  • Roberts, Robert B., Encyclopedia of Historic Forts: The Military, Pioneer, and Trading Posts of the United States, Macmillan, New York, 1988, 10th printing, ISBN 0-02-926880-X, page 705
  • U.S.Army, Supplement to the Harbor Defense Project of Narragansett Bay, (HDNARB-AP-45), 1 Feb 1945, CDSG
  • CDSG


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