Fort St. Philip (Plaquemines Parish, Louisiana)

Plaquemines Parish · Louisiana · Civil War

Quick BriefFirst fortified by the French in 1746 and rebuilt by the Spanish in 1791–92, Fort St. Philip became a U.S. installation after the Louisiana Purchase in 1803. It repelled British naval bombardment in January 1815, and was the site of a twelve-day battle in April 1862 that decided the Civil War capture of New Orleans.
Civil WarSpanish ColonialCoastal defense
Fort St. Philip, Louisiana

History & Significance

Fort St. Philip is a historic masonry fort located on the eastern bank of the Mississippi River, about 40 miles upriver from its mouth in Plaquemines Parish, Louisiana, opposite Fort Jackson. The site was first fortified by the French in 1746 and rebuilt by the Spanish in 1791–92 before passing to U.S. control in 1803 following the Louisiana Purchase.

In February 1808, American engineers began comprehensive improvements, ordering over two million bricks for reconstruction; these upgrades, completed by 1810, included reinforcing walls and expanding battery positions to mount heavier guns. Major General Andrew Jackson directed further repairs and reinforcements in 1814; these enhancements proved effective during the British bombardment from January 9 to 18, 1815, when the fort's improved resilience repelled the attack.

During the American Civil War, Fort St. Philip was the site of a twelve-day battle in April 1862 by Union forces—the decisive battle for the capture of New Orleans. It was declared a National Historic Landmark in 1960. Fort St. Philip remains privately owned and in a state of bad deterioration, having been heavily damaged in 2005 during Hurricanes Katrina and Rita.

Key Facts

StateLouisiana
LocationPlaquemines Parish
Established1746
War / eraCivil War
Current statusPrivate property
Coordinates29.36388889, -89.46416667
NRHP reference66000380

Map

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🧳 Visiting

From the nearest major airportLouis Armstrong New Orleans International Airport (MSY)🚗 83 mi by road⏱️ ≈ 1 hr 52 min drive

Sources

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