| 词条 | Old M-95–Michigamme River Bridge |
| 释义 |
|name = Old M-95–Michigamme River Bridge |nrhp_type = |image = |caption = |location= Old M-95 over Michigamme River, Republic Township, Michigan |coordinates = {{coord|46|14|48|N|88|0|46|W|display=inline,title}} |locmapin = Michigan#USA |built = 1910 |architect = Marquette County Road Commission |architecture = Other, Luten Arch Bridge |added = December 17, 1999 |area = less than {{convert|1|acre}} |governing_body = |mpsub = {{NRHP url|id=64500271|title=Highway Bridges of Michigan MPS}} |refnum = 99001531[1] }} The Old M-95–Michigamme River Bridge is a bridge located on Old M-95 as it passes over the Michigamme River in Republic Township, Michigan. It was listed on the National Register of Historic Places in 1999.[1] HistoryIn the early part of the 20th century, before the Michigan State Highway Department standardized bridge designs, local road commissions were responsible for bridge designs in their own areas.[2] In rural areas, the bridges built for vehicular traffic primarily had steel or timber superstructures. In Marquette County, however, the road commission built at least three rural concrete arch bridges in the 1910s: one over the Dead River in Marquette, one over the Michigamme River in Republic, and this bridge over the Michigamme. This bridge was built in 1910, and although modest in scale and design, it is technologically and historically significant as an embodiment of local bridge design before state standardization.[2] DescriptionThe Old M-95–Michigamme River Bridge is {{convert|120|ft}} long with a main span length of {{convert|60|ft}}.[2] It spans the Michigamme River on an abandoned roadway (now used as a private road) that was once M-95, immediately west of the current highway. The bridge has two filled spandrel arches, with continuous elliptical arch rings. The arches sit on concrete abutments on each shore pier located in the center of the river. The deck is cambered and made of earth, and flanked on each side with concrete guardrails.[2] See also
References1. ^1 {{NRISref|version=2010a|dateform=mdy|accessdate= July 26, 2011}} {{DEFAULTSORT:Old M-95-Michigamme River Bridge}}2. ^1 2 3 {{cite web |url= http://www.mcgi.state.mi.us/hso/sites/1718.htm|title= M-95 (old)–Michigamme River Bridge |publisher= Michigan State Housing Development Authority |work= Historic Sites Online |accessdate= July 26, 2011 |archiveurl=https://web.archive.org/web/20120601093828/http://www.mcgi.state.mi.us/hso/sites/1718.htm |archivedate=June 1, 2012 |deadurl=yes}} 7 : National Register of Historic Places in Marquette County, Michigan|Bridges completed in 1910|Road bridges on the National Register of Historic Places in Michigan|Deck arch bridges in the United States|Road bridges in Michigan|Concrete bridges in the United States|Buildings and structures in Marquette County, Michigan |
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