"Trunk Rail Bridge" Wishram Washington : 無料・フリー素材/写真
"Trunk Rail Bridge" Wishram Washington / Loco Steve
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | The Oregon Trunk Rail Bridge or Celilo Bridge is a railroad bridge built in 1912 over the Columbia River in the Pacific Northwest of the United States. It consists of eight steel truss spans and several deck girder spans, and includes a vertical-lift section.It is part of the Wishram, Washington to Bend, Oregon line of the BNSF Railway. The bridge is downstream of the site of Celilo Falls, now submerged by water impounded by The Dalles Dam. The Dalles-Celilo canal passed beneath the southernmost span, which is a swing span. Completion of The Dalles Dam in 1957 inundated the canal, and the truss span to the north of the swing span was modified to lift for river navigation. All of the bridge's piers rest on rocks that were normally exposed during low water periods. During periods of high water, this stretch of the Columbia River became raging rapids, so the piers were built during low water. The north end of the bridge is a wye, where the rail line from Bend meets the BNSF Portland to Pasco mainline. On the south end of the bridge, the line crosses over and interchanges with the Union Pacific mainline. en.wikipedia.org/wiki/Oregon_Trunk_Rail_Bridge Photo Taken from the Westbound Empire Builder ( Portland Route ) |
| 撮影日 | 2011-07-21 11:35:15 |
| 撮影者 | Loco Steve , Bromley , UK |
| タグ | |
| 撮影地 | Wishram, Washington, United States 地図 |
| カメラ | NIKON D3000 , NIKON CORPORATION |
| 露出 | 0.002 sec (1/500) |
| 開放F値 | f/5.3 |
| 焦点距離 | 165 mm |