AMTK - Groton Bridge (1919)

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

BH Photo #153696

Map 

Street View 

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)
- Cianbro Corporation of Pittsfield, Maine (Rehab)
- Holbrook, Cabot & Rollins Corp. of Boston, Massachusetts (Substructure)
- Ralph Modjeski of Bochnia, Poland (Chief Engineer)
- Strauss Bascule Bridge Co. of Chicago, Illinois (Bascule Design)

Railroads

- Amtrak (AMTK)
- New York, New Haven & Hartford Railroad (NH)
- Northeast Corridor (NEC)
- Penn Central Railroad (PC)

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)

Quadrangle map:

New London

Inventory number

BH 43969 (Bridgehunter.com ID)

Categories 

Update Log 

• November 26, 2022: New photos from Patrick Gurwell
• December 3, 2021: Updated by Christopher Finigan: Added category "Riveted"
• August 9, 2021: New photo from Geoff Hubbs
• August 6, 2021: New photo from Geoff Hubbs
• May 13, 2017: New photos from Chester Gehman
• January 26, 2016: New photo from Douglas Butler
• November 5, 2015: New photo from Douglas Butler
• July 18, 2015: Updated by Luke: Added image to removed Doug's image as the thumbnail image
• December 16, 2014: New photo from Douglas Butler
• October 4, 2014: New photo from Douglas Butler
• April 1, 2014: Updated by Nathan Holth: Added Ralph Modjeski as Engineer.
• October 12, 2013: New Street View added by Douglas Butler
• October 3, 2012: New photos from Jann Mayer
• January 30, 2010: Added by James Baughn

Related Bridges 

• Thames River Railroad Bridge (1889) (Predecessor)
• Gold Star Memorial Bridge (1943) (Upstream)

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
• Nathan Holth
• Douglas Butler
• Luke
• Chester Gehman - gehmanc2000 [at] yahoo [dot] com
• Geoff Hubbs
• Patrick Gurwell - pgurwell [at] gmail [dot] com

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