Rating:
No votes cast
BM - Mystic River Drawbridge
Photos
Oblique View Of Northwest Side Of Mystic River Bridge, Looking Southeast From New (U/C) Railroad Bridge Deck
Photo taken for the Historic American Engineering Record
View photos at Library of Congress
BH Photo #309593
Description
Drawbridge No. 7 is apparently the last horizontally folding railroad bridge in the eastern United States. Its technology is representative of the earliest patented movable span bridge in the country (patented by Joseph Ross of Ipswich, Massachusetts, in 1849). The horizontally folding draw was a common railroad bridge type in the Greater Boston area since the 1840s. All except Drawbridge No. 7 have been removed and/or replaced.-- Historic American Engineering Record
Facts
- Overview
- Warren deck truss bridge over Mystic River on Boston & Maine Railroad
- Location
- Somerville, Suffolk County, Massachusetts, and Middlesex County, Massachusetts
- Status
- Replaced by a new bridge
- History
- Built 1893-4; Deck trusses added 1917; Tower rebuilt 1933; Stringers added 1955-56; Replaced 1989
- Railroad
- - Boston & Maine Railroad (B&M; BM)
- Design
- Warren deck truss
- Also called
- BM - Drawbridge No. 7
Draw 7 - Approximate latitude, longitude
- +42.39315, -71.07440 (decimal degrees)
42°23'35" N, 71°04'28" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 19/329260/4695512 (zone/easting/northing)
- Quadrangle map:
- Boston North
- Inventory number
- BH 64469 (Bridgehunter.com ID)
Sources
- Luke
- HAER MA-88 - Mystic River Drawbridge No. 7, Spanning Mystic River at Boston & Maine Railroad Eastern Route, Somerville, Middlesex County, MA
- Douglas Butler
© Copyright 2002-18, James Baughn and contributors.
This page's URL is http://bridgehunter.com/ma/suffolk/bh64469/
This page's URL is http://bridgehunter.com/ma/suffolk/bh64469/