| 词条 | Ryefield Bridge |
| 释义 |
| name = Ryefield Bridge | nrhp_type = | image = HarrisonME RyefieldBridge 1.jpg | caption = | nearest_city= Stuarts Corner, Maine | coordinates = {{coord|44|8|34|N|70|35|43|W|display=inline,title}} | locmapin = Maine#USA | built = {{Start date|1912}} | builder = American Bridge Co. | architecture = Warren through truss | added = September 24, 1999 | area = less than one acre | governing_body = Local | refnum = 99001193[1] }} The Ryefield Bridge is a historic bridge connecting Ryefield Bridge Road in Harrison, Maine to West Andrew Hill Road in Otisfield, Maine, across the Crooked River. Built in 1912, it is one of the oldest surviving Warren truss bridges in the state, and is a rare example with double-intersection diagonals, added for increased rigidity. The bridge was listed on the National Register of Historic Places in 1999.[1] Description and historyThe bridge is set in a rural area of western Maine, set across the Crooked River, which forms the border between the towns of Harrison to the west and Otisfield to the east, in an area known locally as Stuart's Corner. The bridge is a single span, {{convert|98|ft|m}} in length, resting on ashlar granite abutments. Steel beams and stringers carry a road deck {{convert|16.5|ft|m}} wide, covered with planking. It has two Warren through trusses, whose elements are riveted in place, with a second set of diagonal members (the "double intersection" members) that add rigidity to the structure. The portals are adorned with decorative plaques identifying the date and manufacturer of the structure.[2] The bridge was manufactured by the American Bridge Company and installed in 1912 by its construction arm, the United Construction Company of Albany, New York. It is one of a handful of known pre-1916 Warren truss bridges in the state, and a particularly rare example of a lighter-weight instance with double-intersection diagonals. The cost of construction was paid by the towns of Harrison and Otisfield.[1] See also
References1. ^1 2 {{NRISref|version=2010a}} {{National Register of Historic Places}}2. ^{{cite web|url={{NRHP url|id=99001193}}|title=NRHP nomination for Ryefield Bridge|publisher=National Park Service|accessdate=2014-12-18}} 11 : Road bridges on the National Register of Historic Places in Maine|Bridges completed in 1912|Bridges in Cumberland County, Maine|Bridges in Oxford County, Maine|1912 establishments in Maine|National Register of Historic Places in Cumberland County, Maine|Harrison, Maine|Otisfield, Maine|Road bridges in Maine|Steel bridges in the United States|Warren truss bridges in the United States |
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