Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Wapsipinicon River Bridge, Spanning Wapsipinicon River at State Highwa...
Significance: Significant as an unaltered, well preserved four-span, closed spandrel, reinforced concrete arch bridge with original railing that was a standard bridge type designed by the Iowa State Highway Com... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Cedar River Bridge, Spanning Cedar River, Floyd, Floyd County, IA
Significance: Designed by the Iowa State Highway Commission. The continuous steel girder of three spans maintains its original Art Deco railing. Unprocessed Field note material exists for this structure: N251... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Kilbourn Bridge, Spanning Des Moines River, Kilbourn, Van Buren County...
Significance: The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC pri... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More
Winnebago River Bridge, Spanning Winnebago River at U.S. Highway 65, M...
Significance: The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa Stat... More
Illinois Central Railroad Overpass, Spanning Illinois Central Railroad...
Significance: Designed by the Iowa State Highway Commission, the continuous steel plate girder of two asymmetrical spans is broken into two unequal lengths with an interesting detail off-center of the middle pi... More