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Groton Bridge

New London County, Connecticut
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Photos 

View, Looking North, Showing Groton Bridge (Foreground) And Highway Bridge (Background)

Photo taken by Historic American Engineering Record

View photos at Library of Congress

Map 

Facts 

Overview
Vertical-lift through truss bridge over Thames River on Northeast Corridor (Amtrak)
Location
New London, New London County, Connecticut
Status
Open to traffic
History
Built 1919 by the American Bridge Co. as a bascule bridge; draw span replaced by vertical lift in 2008
Builders
- American Bridge Co. of New York (Superstructure)
- C.H. Norwood (Equipment)
- Holbrook, Cabot & Rollins (Substructure)
- Strauss Bascule Bridge Co. of Chicago, Illinois (Design)
Design
Main span: Warren through truss vertical-lift (replacing a Warren through truss bascule as seen in the HAER photos)
Approaches: Four Parker through trusses (185, 330, 300 and 300 feet)
Dimensions
Length of largest span: 330.0 ft.
Total length: 1,394.0 ft.
Also called
Thames River Railroad Bridge
Approximate latitude, longitude
+41.36303, -72.08727   (decimal degrees)
41°21'47" N, 72°05'14" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/743629/4583152 (zone/easting/northing)
USGS topographic map
New London
Inventory number
BH 43969 (Bridgehunter.com ID)

Categories 

American Bridge Co. (449)
Amtrak (159)
Built 1919 (347)
Built during 1910s (6,731)
C.H. Norwood (1)
Connecticut (267)
HAER documented (782)
Holbrook, Cabot & Rollins (1)
Movable (1,356)
Navigable waterway (1,449)
New London County, Connecticut (18)
New London, Connecticut (2)
Northeast Corridor (11)
 Open (28,320)
Owned by railroad (4,052)
Parker through truss (947)
Parker truss (1,267)
Span length 250-500 feet (863)
Strauss Bascule Bridge Co. (26)
Strauss Heel Trunnion Bascule (10)
Through truss (9,211)
Total length 1000-2500 feet (1,217)
Truss (23,575)
Vertical lift (275)
Warren through truss (928)
Warren truss (3,961)

Update Log 

  • October 3, 2012: New photos from Jann Mayer
  • January 30, 2010: Added by James Baughn

Sources 

  • Wikipedia
  • HAER CT-11 - Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connec, New Haven, New Haven County, CT
  • HAER CT-25 - New York, New Haven & Hartford Railroad, Groton Bridge, Spanning Thames River between New London & Groton, New London, New London County, CT
  • Jann Mayer - jannmayer [at] gmail [dot] com
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Comments 

Groton Bridge
Posted March 19, 2011, by James McCray (jamesinslocomb [at] yahoo [dot] com)

This bridge and the Gold Star Mem. Bridge were featured in a scene from the movie "Down Periscope."