Battery Bienvenue

Battery Bienvenue is a 19th-century military fortification standing at the junction where Bayou Bienvenue and Bayou Villeré meet in St. Bernard Parish, Louisiana. The site originally contained several buildings including barracks, officer quarters, a guardhouse, and an ammunition storage magazine arranged around a central gun emplacement.

The site was built in 1815 after British forces demonstrated the vulnerability of the region by advancing through Bayou Bienvenue during the War of 1812. Construction aimed to prevent future seaward attacks threatening New Orleans.

The fortification shows how early American military engineers integrated coastal defense with the existing bayou waterways. Visitors can see how the structure's design connected to local water systems that shaped the region.

The site is best reached by car as public transportation is limited to the area. Visitors should wear comfortable walking shoes and prepare for the humid bayou climate, with insects being more active during warmer months.

The battery was originally equipped with twenty-two 32-pound cannons and two heavy mortars that required a full artillery crew to operate effectively. This firepower made it one of the more formidable mobile coastal defense positions of its era.