| 词条 | Columbia Bridge (Connecticut River) |
| 释义 |
|bridge_name = Columbia Bridge |image = 213-23_Columbia_Bridge.jpg |image_size = frameless{{!}}upright=1.20 |caption = Bridge in U.S. states of Vermont & New Hampshire |official_name= |carries= |crosses=Connecticut River |locale=Columbia, New Hampshire and Lemington, Vermont |maint=Town of Columbia |id=29-04-07 (NH #33) 45-05-02 (VT) |design=Howe truss bridge[1] |mainspan= 131.5 ft (40.08 m) |length= 145.75 ft (44.425 m) |width= 20.58 ft (6.273 m) (maximum), 14.66 ft (4.468 m) (roadway) |height= |load=6 tons |clearance=13.08 ft (3.987 m) |below= |traffic= |begin= |complete= {{start date|1912}}{{Infobox NRHP | embed = yes | name = Columbia Covered Bridge | nrhp_type = | caption = Bridge site in U.S. state of New Hampshire | location = | nearest_city = Columbia, New Hampshire | locmapin = New Hampshire#USA | built = | architect =Charles Babbitt | architecture = Howe truss covered bridge | added = December 12, 1976 | area = {{convert|1|acre|ha|1}} | governing_body = Columbia, New Hampshire | refnum = 76000123[2] }} The Columbia Bridge is a covered bridge, carrying Columbia Bridge Road over the Connecticut River between Columbia, New Hampshire and Lemington, Vermont. Built in 1911-12, it is one of only two New Hampshire bridges (along with the Mount Orne Covered Bridge) built with Howe trusses, and is one of the last covered bridges built in the historic era of covered bridge construction in both states. It was listed on the National Register of Historic Places in 1976.[2] Description and historyThe Columbia Bridge stands in southeastern Lemington and northwestern Columbia, both rural communities in the northern parts of their respective states. It carries Columbia Bridge Road between United States Route 3 in New Hampshire and Vermont Route 102 in Vermont. It is in a rural agricultural setting, and is oriented northwest-to-southeast across the Connecticut River, on abutments of dry laid stone that have been faced in concrete. It is a wood-iron Howe truss design, with a single span that is {{convert|146|ft|m}} long. The bridge has a total width of {{convert|20.5|ft|m}} and a roadway with of {{convert|15.5|ft|m}}, and an internal clearance of {{convert|13|ft|m}}. The exterior is sheathed in vertical board siding, which extends a short way into each portal to protect the truss ends. The siding on the north side rises to a height of {{convert|6|ft|m}}, leaving an open space between it and the gabled roof.[3] The bridge was built by Charles Babbitt in 1912, replacing one destroyed by fire the previous year, and is the third to stand on the site. The bridge is considered to be one of the last built in either state during the historic period of covered bridge construction.[3] It was rehabilitated by the state of New Hampshire in 1981 at a cost of $143,000. See also{{Portal|Bridges|Vermont|New Hampshire|National Register of Historic Places}}
References1. ^Official New Hampshire site about this bridge 2. ^1 {{NRISref|version=2010a}} 3. ^1 {{cite web|url={{NRHP url|id=76000123}}|title=NRHP nomination for Columbia Bridge|accessdate=2014-10-25}} External links
|structure = Crossings |place = Connecticut River |bridge = Columbia Covered Bridge |bridge signs = |upstream = Route 26 Bridge |upstream signs = |downstream = Route 105 Bridge |downstream signs = }}{{National Register of Historic Places in New Hampshire}}{{Connecticut River}} 23 : Covered bridges in Vermont|Covered bridges in New Hampshire|Buildings and structures in Lemington, Vermont|Bridges over the Connecticut River|Bridges completed in 1912|Covered bridges on the National Register of Historic Places in New Hampshire|Covered bridges on the National Register of Historic Places in Vermont|Tourist attractions in Coos County, New Hampshire|Bridges in Coos County, New Hampshire|Bridges in Essex County, Vermont|Tourist attractions in Essex County, Vermont|Road bridges in New Hampshire|Road bridges in Vermont|1912 establishments in New Hampshire|National Register of Historic Places in Coos County, New Hampshire|National Register of Historic Places in Essex County, Vermont|Road bridges on the National Register of Historic Places in New Hampshire|Road bridges on the National Register of Historic Places in Vermont|Wooden bridges in New Hampshire|Wooden bridges in Vermont|Howe truss bridges in the United States|1912 establishments in Vermont|Interstate vehicle bridges in the United States |
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