Sectional Map of the State of Iowa <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Map+of+Iowa+">Map of Iowa </a> 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. Carleton, Guy H Dubuque, Iowa. 1850 Map Grassed waterway on the Bumann farm. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Cherokee+County%2C+Iowa%3B%0D%0ASoil+and+Water+Conservation%3B%0D%0AAgriculture%3B%0D%0ATerraces%3B%0D%0AWatershed.">Cherokee County, Iowa; Soil and Water Conservation; Agriculture; Terraces; Watershed.</a> Photo of the grassed waterway on the Bumann farm in Cherokee County, Iowa. Unknown Cherokee County Soil and Water Conservation District State Library of Iowa 1975 Cherokee County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> JPEG Photograph Drop inlet (riser) on the Bumann farm. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Cherokee+County%2C+Iowa%3B%0D%0ASoil+and+Water+Conservation%3B%0D%0AAgriculture%3B%0D%0AWatershed.">Cherokee County, Iowa; Soil and Water Conservation; Agriculture; Watershed.</a> Photo of a road drop inlet (riser) on the Bumann farm in Cherokee County, Iowa. Unknown Cherokee County Soil and Water Conservation District State Library of Iowa 1975 Cherokee County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> JPEG Photograph Erosion damage, and waterway needs in a field. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Cherokee+County%2C+Iowa%3B%0D%0ASoil+and+Water+Conservation%3B%0D%0AAgriculture%3B%0D%0ATerraces%3B%0D%0AWatershed.">Cherokee County, Iowa; Soil and Water Conservation; Agriculture; Terraces; Watershed.</a> Photo of erosion damage, and waterway needs in a field in Cherokee County, Iowa. Unknown Cherokee County Soil and Water Conservation District State Library of Iowa 1982 Cherokee County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> JPEG Photograph Hoffman & Broghammer Group's concrete drop spillway structure in Delaware County, Iowa; 3 miles north of Manchester, Iowa. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0ADelaware+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; Delaware County, Iowa; Farmland - Iowa.</a> 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 started in the fall of 1959 and completed in the spring of 1960. It was seeded to alfalfa-brome. The waterway drains 615 acres and has a surface flow with grade of 0.50%. Tile drainage outlet provided for 265 acres. Three farmers shared cost. J.C. Costigan of Elkader, Iowa was the structure contractor. U.S. Soil Conservation Service J. Wildman Soil Conservation Service State Library of Iowa 1960 Delaware County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> PDF Photograph Hoffman & Broghammer Group's concrete drop spillway structure in Delaware County, Iowa; 3 miles north of Manchester, Iowa. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0ADelaware+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; Delaware County, Iowa; Farmland - Iowa.</a> 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 started in the fall of 1959 and completed in the spring of 1960. It was seeded to alfalfa-brome. The waterway drains 615 acres and has a surface flow with grade of 0.50%. Tile drainage outlet provided for 265 acres. Three farmers shared cost. J.C. Costigan of Elkader, Iowa was the structure contractor. This picture was taken in 1985. Unknown Delaware County Soil and Water Conservation District State Library of Iowa 1985 Delaware County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> PDF Photograph Don Recker spill drop way concrete structure in Delaware County, Iowa. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0ADelaware+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; Delaware County, Iowa; Farmland - Iowa.</a> Don Recker spill drop way concrete structure in Delaware County, Iowa. Unknown Delaware County Soil and Water Conservation District State Library of Iowa 1985 Delaware County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> PDF Photograph Willard Robinson drop spillway structure. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0ADelaware+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; Delaware County, Iowa; Farmland - Iowa.</a> Willard Robinson drop spillway structure in Delaware County, Iowa. Unknown Delaware County Soil and Water Conservation District State Library of Iowa 1964 Delaware County Soil and Water Conservation District, Cherokee County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> PDF Photograph Construction of a waterway turn-strip. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0AWest+Pottawattamie+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; West Pottawattamie County, Iowa; Farmland - Iowa.</a> Bill Young, son-in-law of Ernest Harms approaching a bromegrass waterway with a tractor. The waterway is used as a turnstrip in cultivating corn, in Underwood, Iowa. W.H. Lathrop West Pottawattamie County Soil and Water Conservation District State Library of Iowa June 9, 1949 West Pottawattamie County Soil and Water Conservation District, West Pottawattamie County, Iowa. For questions about copyright, contact the State Library of Iowa at<span class="Apple-converted-space"> </span><a title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).<span class="Apple-converted-space"> </span><a title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/unknown</a> PDF Photograph Contoured waterway on the Gaumer farm. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Soil+Conservation+-+Iowa%3B%0D%0AWater+Conservation+-+Iowa%3B%0D%0AWarren+County%2C+Iowa%3B%0D%0AFarmland+-+Iowa.">Soil Conservation - Iowa; Water Conservation - Iowa; Warren County, Iowa; Farmland - Iowa.</a> Contoured waterway on Keith Gaumer's farm in Warren County, Iowa. Unknown Warren County Soil and Water Conservation District State Library of Iowa Unknown <span style="color:#4c3939;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;">Warren County Soil and Water Conservation District, Warren County, Iowa. For questions about copyright, contact the State Library of Iowa at</span><span class="Apple-converted-space" style="color:#4c3939;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;"> </span><a style="color:#a28e8a;text-decoration:none;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;" title="State Library of Iowa" href="http://www.statelibraryofiowa.org/">http://www.statelibraryofiowa.org.</a> <span style="color:#4c3939;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;">This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).</span><span class="Apple-converted-space" style="color:#4c3939;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;"> </span><a style="color:#a28e8a;text-decoration:none;font-family:Cabin, sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;" title="In Copyright" href="http://rightsstatements.org/vocab/InC/1.0/unknown" target="_blank">http://rightsstatements.org/vocab/InC/1.0/</a> PDF Photograph