Road Structure 4 miles north of Sioux City, Iowa in Plymouth County.
This photo shows a 36 inch corrugated metal pipe laid before covering on a county farmer (G. Fry) cooperative road structure. At the double elbow section to the left is where the downstream berm will be located. The structure has a slotted flume outlet. This structure has a drop of 58' from inlet to outlet of flume. Approximately 2/3 of the 65,000 cubic yards of fill are in place
Ducommun, W - Photographer
1964-06-12
Plymouth County Soil and Water Conservation District
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Io-558-4
Robert Kelker Parallel Broadbase ten
State Library of Iowa
1979
Plymouth County Soil and Water Conservation District
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Ron Fischer parallet grassback terraces
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State Library of Iowa
1979
Plymouth County Soil and Water Conservation District
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Rows of Small Pine Trees with Hedges near by
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State Library of Iowa
Plymouth County Soil and Water Conservation District
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Seeded backslope terraces on the property of William Zemanek, Section 11 - Sioux Township #10
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Seeded backslope terraces are a very effective pollution control
Plymouth county Soil and Water Conservation District
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Seven Standing Men Talking in Field
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Soil Conservation - Iowa
Water Conservation - Iowa</a>
These men are not identified, but the one in the middle is holding a document..
unknown
State Library of Iowa
Plymouth County Soil and Water Conservation District
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Several people standing by two Komatsu Excavators with a smaller farm machine in background
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State Library of Iowa
Plymouth County Soil and Water Conservation District
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Shovel Loader and Bulldozer in Field - John Schnefl
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State Library of Iowa
Plymouth County Soil and Water Conservation District
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Side view of man giving talk to group of seated young people outside.
State Library of Iowa
Plymouth County Soil and Water Conservation District
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Side view of property owner Lester Willams examining some native grass.
The native grass that is being examined has never been cultivated. Mr. Williams uses good management on his native grass pasture and he has had good rresponse from fertilizing. This property is located 4 miles north of Sioux City, Iowa.
Weber, Eldon, Photographer - U.S. Soil Conservation Service Photo
State Library of Iowa
Plymouth County Soil and Water Conservation District
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Io-266-7