Protection and Problems Fort Jefferson was intended to hold 450 cannons and 1,500 men. The latest technologies were incorporated into its design to protect the soldiers here. Specialized iron shutters used to protect the cannon openings were one of the many technological advances used here. These hinged, wrought-iron shutters were placed between the mortar core of the fort and the brick façade. A great achievement for their day, they were first introduced into American forts in 1857. These shutters were known as "Totten shutters," after the coastal fort designer, General Joseph Totten. |
Last updated: April 14, 2015