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Northern Avenue Bridge
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Photos
Looking Northeast Toward Northern Ave. Swing Bridge. Boston Tea Party Ship At Ahchor In Foreground
Photo taken for the Historic American Engineering Record
Description
The Northern Avenue Swing Bridge, built in 1908, is one of only three surviving swing bridges built by the city of Boston in the late 19th and early 20th century. Today, still operated infrequently on its original compressed-air system, it is the only operable bridge in Boston of its type. The bridge is 80 feet in width, encompassing between four sets of pin connected trusses, two sidewalks, two roadways and a center lane reserved for a double-track freight railroad. The swing span is 283 feet in length. The rim bearing swing span is carried by a 40 foot diameter drum, in turn supported by 56 steel wheels running on a track along the rim of the granite island pier.-- Historic American Engineering Record
Facts
- Overview
- Pratt through truss bridge over Fort Point Channel on Northern Avenue
- Location
- Boston, Suffolk County, Massachusetts
- Status
- Open to pedestrians
- History
- Built 1908
- Design
- Swing Pratt through truss
- Approximate latitude, longitude
- +42.35447, -71.04947 (decimal degrees)
42°21'16" N, 71°02'58" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 19/331209/4691168 (zone/easting/northing)
- USGS topographic map
- Boston South
- Inventory number
- BH 51789 (Bridgehunter.com ID)
Sources
- HAER MA-37 - Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary between Boston & South Boston, Boston, Suffolk County, MA
- Historicbridges.org - by Nathan Holth
© Copyright 2002-13, James Baughn and contributors.
This page's URL is http://bridgehunter.com/ma/suffolk/northern-avenue/
This page's URL is http://bridgehunter.com/ma/suffolk/northern-avenue/