Tyngsborough Bridge
N 42° 40.557 W 071° 25.218
19T E 301686 N 4727670
Replaced a 4-span iron whipple truss bridge built 1873.
Waymark Code: WM4WZQ
Location: Massachusetts, United States
Date Posted: 10/07/2008
Views: 23
The 2nd oldest of 5 positively identified steel rib through arch bridges in the MassHighway database, and one of only 13 known steel rib arch bridges of any configuration in the database. One of only 2 of the 13 to utilize an open, braced rib design (the Boston University Bridge, Boston is the other). The Tyngsborough Bridge's 547 foot main span is the longest simple steel arch span in the MassHighway database, and the 5th-longest single span amongst all bridges listed in the database.
Length of bridge: 656 feet
What type of traffic does this bridge support?: Motor Vehicle
What kind of gap does this bridge cross?:
Merrimack River
Date constructed: 1930
Is the bridge still in service for its original purpose?: No
Name of road or trail the bridge services: State route 113
Location:
Tyngsborough, MA
Height of bridge: Not listed
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