US Army Corps of Engineers
Rock Island District

Lock and Dam 11
Lock and Dam 11 is located near Dubuque, Iowa, 583 miles above the confluence of the Mississippi River and Ohio River. The lock was opened in 1937 and is 110 feet wide by 600 feet long.

Download Image: Full Size (0.17 MB)
Tags:
Photo by: Rock Island District |  VIRIN: 121228-A-VX113-003.JPG