| 词条 | Rock Falls Bridge |
| 释义 |
| name = Rock Falls Bridge | nrhp_type = | image = | caption = | location = Spring Street over the Shell Rock River Rock Falls, Iowa | coordinates = {{coord|43|12|24|N|93|05|04|W|display=inline,title}} | locmapin = Iowa#USA | built = 1929 | builder = C.A. Holvik | architect = Iowa State Highway Commission | architecture = Spandrel arch | added = June 25, 1998 | area = less than one acre | mpsub = {{NRHP url|id=64500160|title=Highway Bridges of Iowa MPS}} | refnum = 98000742[1] }} The Rock Falls Bridge is a historic structure located in Rock Falls, in the north-central part of the U.S. state of Iowa. The span carries Spring Street over the Shell Rock River for {{convert|142|ft|m}}. The Iowa State Highway Commission prepared the plans for this bridge in September 1928, and they were revised in February 1929. While they designed riveted steel trusses for medium-span bridges in rural areas, they used concrete open spandrel arches like this one for several urban and small town structures in the 1920s.[2] C.A. Holvik of Mason City was awarded the contract to construct the bridge, which they completed later in 1929. It was listed on the National Register of Historic Places in 1998.[1] See also
References1. ^1 {{NRISref|version=2010a}} {{National Register of Historic Places}}{{NRHP in Cerro Gordo County, Iowa}}{{Iowa-NRHP-stub}}{{Iowa-bridge-struct-stub}}2. ^{{cite web|url={{NRHP url|id=98000742}}|title=Rock Falls Bridge|publisher=National Park Service|accessdate=2016-12-01|author1=Robert Hybben|author2=Charlene Roise|author3=Clayton B. Fraser}} with {{NRHP url|id=98000742|photos=y|title=photos}} 7 : Bridges completed in 1929|Arch bridges in Iowa|Bridges in Cerro Gordo County, Iowa|National Register of Historic Places in Cerro Gordo County, Iowa|Road bridges on the National Register of Historic Places in Iowa|Road bridges in Iowa|Concrete bridges in the United States |
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