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Baltimore & Ohio Railroad, Mount Clare Passenger Car Shop, Southwest corner of Pratt & Poppleton Streets, Baltimore, Independent City, MD



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Item Title


Location
Southwest corner of Pratt & Poppleton Streets, Baltimore, MD

Find maps of Baltimore, MD


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER MD-6
Unprocessed field note material exists for this structure (FN-22).
Significance: A unique structure, the Mount Clare Passenger Car Shop is undoubtedly the largest circular (actually 22-sided polygonal) industrial building in the world. It is commonly misidentified as a "roundhouse." Erected to build and repair passenger cars, so serving to ca. 1953, it was converted to the B&O Museum's principal building, housing a collection of full-size locomotives, cars, and other large exhibits. The sloping lower roof is supported by radial trusses carried at their outer ends by the brick exterior walls and at their inner by 22 wrought-iron columns that also support the lantern and cupola, and surround the 60-foot turntable. Diameter: 235 feet; height to top of cupola: 123 feet. The exterior walls are built of hard brick and the roof is of slate. The building had room for 22 stalls and is lit by a clear story 100 feet in diameter. The roof rises sharply from the outside walls to the base of the story is brick. In 1974-75, the entire complex was renovated by the Chessie System, including a new slate roof for the car shop.

Subjects
Brick Buildings
Galleries & Museums
Railroad Car Shops


Related Names
Lowe, Jet, Photographer


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. AERIAL VIEW OF MOUNT CLARE SHOP COMPLEX
2. AERIAL VIEW OF MOUNT CLARE SHOP COMPLEX
3. GENERAL VIEW OF PASSENGER CAR SHOP; RAILROAD TRACKS IN FOREGROUND
4. GENERAL VIEW OF CUPOLA ATOP PASSENGER CAR SHOP
5. RAILROAD TRRACKS LEADING TO PAINT & REPAIR SHOP; PASSENGER CAR SHOP TO THE LEFT
6. GENERAL VIEW OF CUPOLA AND SECOND FLOOR OF PASSENGER CAR SHOP
7. INTERIOR VIEW OF CAR SHOP
8. INTERIOR VIEW OF CAR SHOP
9. DETAIL VIEW OF SUPPORT COLUMNS AND LATERAL BRACINGS INSIDE CUPOLA
10. INTERIOR STRUCTURAL VIEWS OF CUPOLA
11. DETAIL VIEW OF WOODEN BRACINGS AND SUPPORTS
12. DETAIL VIEW OF WOODEN BRACINGS AND SUPPORTS
13. DETAIL VIEW OF WOODEN BRACINGS AND SUPPORTS
14. AERIAL VIEW OF ENGINE DISPLAY INSIDE PASSENGER CAR SHOP (NOW A TRANSPORTATION MUSEUM)
15. VIEW OF ENGINES ON DISPLAY
16. AERIAL VIEW OF ENGINE DISPLAY
17. Photocopy of a photograph, source and date unknown GENERAL VIEW OF FRONT FACADE OF MT. CLARE STATION; PASSENGER CAR SHOP IN REAR
18. FROM SOUTH--LEVEL Copy photograph of photogrammetric plate LC-HAER-GS05-1-401L.


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