Charles River Bridge (Commuter Rail)
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| Charles River Bridge | |
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 Charles River Bridge in closed position with a train |
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| Carries | rail traffic over 4 tracks, split between the two bridges |
| Crosses | Charles River |
| Locale | Boston, Massachusetts |
| Designer | Keller & Harrington, Chicago[1] |
| Design | single-leaf, through-truss, rolling bascule bridge |
| Material | steel |
| Total length | 92 feet (28 m) (±5 feet (1.5 m)) |
| Number of spans | 1 |
| Piers in water | 0 |
| Opened | 1931[1] |
| Coordinates | 42°22′08″N 71°03′55″W / 42.36898°N 71.06529°WCoordinates: 42°22′08″N 71°03′55″W / 42.36898°N 71.06529°W |
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The Charles River Bridge is a pair of railroad single-leaf, through-truss, rolling bascule bridges across the Charles River that connects North Station in Boston, Massachusetts to MBTA Commuter Rail lines in northern Massachusetts.
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[edit] Design and construction
These bridges were designed by Keller & Harrington of Chicago, Illinois and built by the Phoenix Bridge Company of Phoenixville, Pennsylvania. Each bridge uses a 629-short-ton (571 t) over-head concrete counterweight. Originally, there were four bridges, but only two of them remain.[1]
[edit] See also
[edit] References
- ^ a b c "Boston & Maine Railroad, Charles River Bridges, Charles River, North Station vicinity, Boston, Suffolk County, MA". Washington, DC: Historic American Buildings Survey/Historic American Engineering Record. 1984. pp. 2–3. http://memory.loc.gov/cgi-bin/ampage?collId=pphhdatapage&fileName=ma/ma1100/ma1194/data/hhdatapage.db&recNum=1&itemLink=r?pp/PPALL:@field(NUMBER+@(ma1194)). Retrieved 2009-07-16.
[edit] External links
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