| 词条 | Grand Coulee Bridge |
| 释义 |
|bridge_name = Grand Coulee Bridge |image = Grand Coulee Bridge.jpg |design = Through cantilever truss |material = Concrete and Steel |crosses = Columbia River |carries = {{jct|state=WA|WA|155}} |spans = |pierswater = |mainspan = |length = {{convert|1089|ft|m|1|abbr=on}}[1] |width = |height = |load = |clearance = |below = |traffic = |builder = |begin = |complete = |preceded = |followed = |heritage = |collapsed = |closed = |toll = |map_cue = |map_image = |map_alt = |map_text = |map_width = |coordinates = {{coord|47.965431|-118.982164|format=dms|display=inline,title|type:landmark_region:US-WA}} |open = 1935{{Infobox NRHP | name = Grand Coulee Bridge | embed=yes | nrhp_type = | image = | caption = | location= Spans Columbia River, Grand Coulee, Washington | built = {{Start date|1934}} | architect = Washington Department of Highways | added = July 16, 1982 | mpsub = {{NRHP url|id=64000902|title=Historic Bridges/Tunnels in Washington State TR}} | refnum = 82004267[2] }} }} The Grand Coulee Bridge, or Columbia River Bridge at Grand Coulee Dam,[3] is a steel thru cantilever truss bridge built in 1934-1935. It carries Washington State Route 155 across the Columbia River immediately below Grand Coulee Dam, near the city of Grand Coulee, Washington. It was added to the National Register of Historic Places in 1982.[4] The bridge was built to transport heavy equipment across the Columbia river during the construction of the dam, and thereafter as permanent highway bridge. As such, it was designed to carry a heavier load than was typical. The bridge is supported by two concrete piers, about 150 ft high. During construction, one of the piers began to tilt, probably due to fine glacial material under the gravel. Additional supports were added as a temporary measure. The piers were later taken down to the bedrock using pneumatic caissons.[4] References1. ^{{Cite web|url=http://www.wsdot.wa.gov/publications/manuals/fulltext/M23-09/BridgeList.pdf |title=Bridge List M 23-09 |publisher=Washington State Department of Transportation |page=253 |date=June 2011 |accessdate=March 13, 2013}} 2. ^{{NRISref|version=2010a}} 3. ^Columbia River Bridge at Grand Coulee Dam, Historic Bridges, WSDOT 4. ^1 {{cite web|url={{NRHP url|id=82004267}}|title = HAER Inventory - Grand Coulee Bridge|author=Lisa Soderberg|accessdate = January 21, 2016|format = PDF|date=April 1984|publisher=Historic American Engineering Record and National Park Service}} {{NRHP url|id=82004267|title=Accompanying two photos|photos=y}}. External links
|structure = Crossings |place = Columbia River |bridge = Grand Coulee Bridge |bridge signs = |upstream = Grand Coulee Dam |upstream signs = |downstream = Chief Joseph Dam |downstream signs = }}{{National Register of Historic Places Washington}}{{Washington-NRHP-stub}}{{Washington-bridge-struct-stub}} 9 : Road bridges on the National Register of Historic Places in Washington (state)|Bridges in Grant County, Washington|Road bridges in Washington (state)|National Register of Historic Places in Grant County, Washington|Bridges completed in 1935|1935 establishments in Washington (state)|Cantilever bridges in the United States|Steel bridges in the United States|Bridges over the Columbia River |
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