This drawing was done in the aftermath of October 5, 1869, Eastman Tunnel collapse. A tunnel connecting Nicollet and Hennepin islands collapsed on that day causing the need for considerable repair to be done to Hennepin Island and St. Anthony Falls. The repair work was finished in 1884, creating a protective apron over the falls.
Contributing Institution:
Hennepin County Library, James K. Hosmer Special Collections Library