P-065 Mississippi-Illinois River Canal (Hennepin Canal) Construction Photographs
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- Cyanotype print. Description on reverse: I. & M. Canal – 2nd mile section View of a section of finished work looking east from cross-bank Grade of bottom 118.0 left-bank 134.0 right bank 131.5, banks are 8ft on top slopes 1 ½ to 1, bottom of canal 59.0 ft. Water-line 80ft. Depth of water is to be 7 feet. A.C. Glass – sub-contractor of this section F.S.H. – Engineer in charge. Taken Dec. 1892