Sectional map of the state of Iowa, compiled from the United States surveys also exhibiting the internal improvements, distances between towns & villages, lines of projected rail roads &c. &c.; drawn and published by Guy H. Carleton, Dep. Sur. U.S.
Annual report includes various conservation programs, conservation practices, events, financial details, and outlook for upcoming year. This year celebrated 20 years of the district's conservation practices.
Hoffman/Broghammer concrete drop spillway structure in Delaware County, Iowa. Built in 1959, the reinforced drop spillway structure of "Island Type" serves as the tile outlet for 8" and 12" tiles and as a waterway stabilizer. The waterway was…
