File:Upgrading Niagara Suspension Bridge.jpg
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DescriptionUpgrading Niagara Suspension Bridge.jpg |
English: From the magazine: Three great types of long-span railroad bridges over the Niagara River, showing engineering progress in the last-half-century: the 800-foot suspension bridge built in 1855; the 550-foot arch replacing it in 1897; the 470-foot cantilever (one of the first ever built) erected in 1883—each of the three about 240 feet above the head of the Whirlpool Rapids. |
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Date |
circa 1901 date QS:P,+1901-00-00T00:00:00Z/9,P1480,Q5727902 |
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Source | Skinner, Frank (1901). "Great Achievements in Modern Bridge-building". McClure's Magazine 16: p. 251. New York and London: S. S. McClure Company. Retrieved on 2009-07-10. | |||||||
Author | Unknown authorUnknown author | |||||||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:07, 10 July 2009 | 702 × 654 (144 KB) | Jappalang (talk | contribs) | {{Information |Description={{en|1=From the magazine: Three great types of long-span railroad bridges over the Niagara River, showing engineering progress in the last-half-century: the 800-foot suspension bridge built in 1855; the 550-foot arch replacing i |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS Windows |
File change date and time | 20:25, 10 July 2009 |
Color space | Uncalibrated |