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New London

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New York, New Haven & Hartford Railroad, Groton Bridge, Spanning Thames River between New London & Groton, New London, New London County, CT



B&W Photos

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Data Pages


Photo Caption Pages


Item Title


Location
Spanning Thames River between New London & Groton, New London, CT

Find maps of New London, CT


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CT-25
Building/structure dates: 1919 initial construction
Significance: The Groton Bridge is a Strauss heel trunnion bascule bridge. It is significant as part of the transportation link in the shoreline route of the New York, New Haven and Hartford Railroad, and as an individual engineering solution to the need to provide dependable rail service while accommodating river navigation.

Subjects
Civil Engineering
Railroad Tracks
Railroad Bridges


Related Names
Gagel , Edward
Waterman , I. D.
Moore , W.
Modjeski , Ralph
Lindenthal , Gustav
McHenry , E.


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. VIEW, LOOKING NORTH, SHOWING GROTON BRIDGE (FOREGROUND) AND HIGHWAY BRIDGE (BACKGROUND)
2. VIEW, LOOKING SOUTHEAST SHOWING BRIDGE CLOSED
3. VIEW LOOKING SOUTHEAST SHOWING BRIDGE OPEN
4. VIEW LOOKING NORTHEAST SHOWING BRIDGE CLOSED
5. VIEW LOOKING NORTHEAST SHOWING BRIDGE OPEN
6. VIEW LOOKING NORTHWEST SHOWING MOVABLE SPAN IN CLOSED POSITION
7. VIEW LOOKING NORTHWEST SHOWING MOVABLE SPAN IN OPEN POSITION
8. VIEW LOOKING EAST, SHOWING COUNTERWEIGHT WITH BRIDGE IN OPEN POSITION
9. VIEW, LOOKING EAST, SHOWING TRACK WITH BRIDGE IN OPEN POSITION
10. VIEW FROM ABOVE SHOWING TRACK WITH BRIDGE IN OPEN POSITION
11. VIEW, LOOKING WEST, SHOWING BRIDGE UNLOCKING AND OPENING
12. VIEW, LOOKING NORTH, SHOWING DETAIL OF HEEL TRUNNION
13. VIEW, LOOKING WEST, SHOWING DETAIL OF HEEL TRUNNION
14. BEVEL AND SPUR GEARS, BRIDGE RAISING MECHANISM
15. DETAIL, BRIDGE RAISING MECHANISM
16. DETAIL, RAILS AND LOCK MECHANISM
17. VIEW, LOOKING WEST, SHOWING BRIDGE MACHINERY HOUSE ON FIXED SPAN
18. INTERIOR, OPERATOR'S HOUSE
19. INTERIOR, OPERATOR'S HOUSE, OPERATING EQUIPMENT
20. INTERIOR, OPERATOR'S HOUSE, OPERATING EQUIPMENT, DETAIL
21. VIEW, LOOKING EAST, SHOWING PIERS AND FENDER SYSTEM
22. VIEW, LOOKING NORTHEAST, SHOWING PIER DETAIL
23. VIEW, LOOKING EAST, SHOWING SUPERSTRUCTURE FROM TRACK LEVEL
24. VIEW, LOOKING EAST, SHOWING DETAIL OF TRUSS WORK


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