Redoubt 7
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Constitution Island Fortifications

West Point Fortifications

The Great Chain 

Hudson River


 Sources and Author's Note  


West Point Fortifications Staff Ride Note Cards 25
USMA History Department 2d Edition, March 1998
Redoubt 7

A redoubt is a small fortification designed to protect an important feature such as a hill or a pass.
Redoubts contain infantry and, often, cannon.)
´ Purpose: Located at western end of island oriented to protect against attack from the marsh against
batteries protecting chain.
´ Construction began in autumn 1778 in response to DuportailÝs recommendations following his
inspection of West PointÝs defenses that year.
- An excellent example of dry masonry construction--best and most complete on the island
- 17Ý high in places, 1:6 talus on outside
- Walls vary in thickness at top from 6-9Ý


- Most of foundation still intact whereas stone from other redoubts may have been sold to local inhabitants. Possibly due to difficult access to position.
- May have had small fraise between scarp and parapet to prevent scaling
- 12Ýx18Ý powder magazine or bombproof from 1782-1797
- No ditch due to difficulty of digging

- LÝEnfantÝs sketch shows a gabled roof
- Existence of banquettes suggests that no heavy artillery was present
´ May have mounted as many as 7 small cannon, but no trace of int. or ext. gun positions exists.
´ Manpower: 80 men
´ May have survived because location on remote w. side of the island made stone difficult to retrieve.

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