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Adjacent to the State Capitol, 900 State Capitol Drive,
Baton Rouge, LA 70802

Property Description

The Old Arsenal Museum, formerly known as the Powder Magazine, was built in 1838 and is the third structure to stand on this site. Listed on the National Register of Historic Places, the site was of particular military importance due to its location on the Mississippi River. It later served as the main defensive position of the southwestern United States. The building has served as a powder magazine, library storage under Louisiana State University and later a barn. Governor Huey P. Long, while developing his grandiose plans for a new capitol, wanted to demolish the powder magazine, but was discouraged by Edward McIllhenny and other prominent citizens of the state. Since then, the arsenal has served the needs of the State Police and the National Guard, prior to its most recent use as a museum. 

The museum is closed permanently but the park is open for visitors. 

The grounds of the Old Arsenal Museum was designated as the new memorial park.

The Louisiana Department of Veterans Affairs (LDVA) confirmed the park is the first on state property to recognize the hundreds of thousands of people from Louisiana who have served, been wounded, or been killed while serving in the US military. 


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Old Arsenal Museum
Old Arsenal Museum
  • Historical Museum
Facility Amenities
  • Bus Parking
General Information
  • Dates closed: Mondays, Sundays and state holidays
Guest Information
  • Family Friendly
  • Meeting/Tour groups welcome
  • Reservations Suggested
Rate Information
  • Free Admission
Suitable for Ages
  • All Ages