Keywords: FMIB 33214 Henry, Ill;; Lock and Dam.jpeg Henry Ill ;; Lock and Dam Subject Dams--Design and construction Geographic Subject United States--Illinois--Henry Tag Dams 1874 Cite book Construction of Mill Dams James Leffel and Co Springfield OH James Leffel Co 1874 149 Creator James Leffel Co PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 33214 Images from the Freshwater and Marine Image Bank to check James Leffel Co Drawings of dams Henry Illinois Locks water transport |