1800s Archive · Bridges & engineering

The Flow over Bear Trap Dam, Chicago Drainage Canal, Lockport, Ill's.

Sanitary · 1908

The Flow over Bear Trap Dam, Chicago Drainage Canal, Lockport, Ill's., Sanitary, 1908
The Flow over Bear Trap Dam, Chicago Drainage Canal, Lockport, Ill's., Sanitary, 1908. Bridges & engineering — The 1800s Archive, from the Library of Congress record.

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