Plaquemine Lock State Historic Site & Visitor Services

Completed in 1909, it serves as a commemorative museum with visitor services.


The Plaquemine Lock State Historic Site, commemorates an early example of hydraulic engineering design and the historic significance of Bayou Plaquemine, an important navigable waterway that was once a distributary of the Mississippi River. Bayou Plaquemine served as a vital waterway from the Mississippi River to the interior of Louisiana during the 1800s and into the mid 1900s. Because of its importance both as a major transportation route and a force for economic prosperity, Congress authorized the construction of a lock here in the late 1800s.

Now a state-designated historic site, it includes a lock house museum and visitors center operated by Iberville Parish Tourism Department. Their talented and knowledgeable staff is more than happy to give recommendations for local dining and attractions. Admission is free and group tours are available by appointment.

  • Group Tours

Wednesday: 9:00 am – 4:30 pm

  • 57730 Main Street, Plaquemine, LA
  • Get Directions
  • (225) 687-7158 or (877) 987-7158
Share via
Copy link