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Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey
 7 drawings |  17 b&w photos |  6 data pages |  3 photo caption pages |
How to obtain copies of this item
TITLE:
Baltimore & Ohio Railroad, Bollman Truss Bridge, Spanning Little Patuxent River, Savage, Howard County, MD
CALL NUMBER:
HAER MD,14-SAV,1-
REPRODUCTION NUMBER:
[See Call Number]
MEDIUM:
Measured Drawing(s): 7 (18 x 24 in.)
Photo(s): 17 (4 x 5 in. and 5 x 7 in.)
Data Page(s): 5 plus cover page
Photo Caption Page(s): 3
DATE:
Documentation compiled after 1968.
CREATOR:
Historic American Engineering Record, creator
NOTE:
Survey number HAER MD-1
Unprocessed field note material exists for this structure (FN-25).
National Register of Historic Places NRIS Number: 72000582
Significance: The Bollman Truss Bridge at Savage is the last of its type in the United States. The Bollman Truss is usually credited with being the first type of iron truss bridge used in large numbers on an American railroad.
SUBJECTS:
MARYLAND--Howard County--Savage
iron truss bridges
COLLECTION:
Historic American Engineering Record (Library of Congress)
REPOSITORY:
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
DIGID:
http://hdl.loc.gov/loc.pnp/hhh.md0583
CONTENTS:
Photograph caption(s):
1. AERIAL VIEW OF BRIDGE FROM EAST
2. EAST SIDE OF BRIDGE
3. BARREL SHOT OF BRIDGE FROM SOUTH
4. BARREL SHOT OF BRIDGE FROM NORTH
5. PANEL POINT IN THE BOTTOM CHORD, SHOWING CONNECTION WITH DIAGONAL TENSION MEMBERS
6. GENERAL VIEW OF TRUSS ON EAST SIDE OF BRIDGE, WITH SAVAGE MILL TOWER IN BACKGROUND
7. PAIRED END POSTS AT MID SPAN SHOWING CONNECTION OF DIAGONAL TENSION MEMBERS WITH ANCHOR CASTING
8. PAIRED END POSTS AND ANCHOR CASTINGS AT CENTER OF BRIDGE
9. PANEL POINT SHOWING COMPENSATING LINK BETWEEN DIAGONAL TENSION MEMBERS AND FLOOR BEAM
10. LOOKING SOUTHEAST SHOWING TRUSS FROM INSIDE THE BRIDGE
11. FROM NORTH END OF BRIDGE--LEVEL Copy photograph of photogrammetric plate LC-HAER-GS05-1-501L.
12. FROM NORTH END OF BRIDGE--INCLINED AND CONVERGENT Copy photograph of photogrammetric plate LC-HAER-GS05-1-502L.13. OBLIQUE VIEW LOOKING NORTHEAST.
14. OBLIQUE VIEW LOOKING NORTHWEST. NOTE: HISTORIC SAVAGE MILL IN BACKGROUND.
15. VIEW LOOKING NORTH AT END POSTS WITH DIAGONAL TENSION MEMBERS. NOTE: MODERN VEHICULAR BRIDGE TO RIGHT.
16. PANEL POINT IN THE BOTTOM CHORD, SHOWING CONNECTION WITH DIAGONAL TENSION MEMBERS.
17. PAIRED END POSTS AT MID SPAN SHOWING CONNECTION OF DIAGONAL TENSION MEMBERS WITH ANCHOR CASTING.
CONTROL #:
MD0583
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