Charles River Bridge (Commuter Rail)

Charles River Bridge
Charles River Bridge in closed position with a train
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°W / 42.36898; -71.06529Coordinates: 42°22′08″N 71°03′55″W / 42.36898°N 71.06529°W / 42.36898; -71.06529

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.

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]

See also

• List of crossings of the Charles River

References

1. ^ ^{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. 

External links

• Boston & Maine Charles River Railroad Bridges at Structurae