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U.S. Naval Academy, Isherwood Hall, Annapolis, Anne Arundel County, MD



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Item Title
Photocopy Of Drawing (from Department Of Navy, Public Archives, Annapolis, Md) Ernest Flagg, Architect, January 1903 Cross Sections Showing Trusses

Location
Isherwood Hall, Annapolis, MD

Find maps of Annapolis, MD


Created/Published
Documentation compiled after 1933.

Notes
Survey number HABS MD-329-7
Building/structure dates: 1905
Building/structure dates: 1958 demolished
National Register Number: 66000386
Significance: Isherwood Hall's significance derives from its architectural value as an element of the Ernest Flagg redevelopment of the Academy, its role in the development of military education, and its early use of the Hennebique structural system. Isherwood Hall is the only one of five structures to be demolished in 1981 which is part of Ernest Flagg's turn of the century redevelopment of the Naval Academy. It was not included, however, as were the principal buildings of the Academy, in Flagg's original 1895 sketch plan of his redevelopment scheme. Erected in 1905, Isherwood Hall was the home of the Department of Marine Engineering for almost its entire existence. Although no major technological breakthroughs or research of any significance is known to have taken place in Isherwood, the building was the site of the education of America's future naval officers in the changing technology of steam propulsion. The building itself was one of the earliest in the United States to make use of the Hennebique structural system, a prototype of reinforced concrete construction developed in France. The structural system of Isherwood, the Hennebique system, was very advanced for its time. The design is based on the placement of concrete and reinforcement to coincide with the moment and shear diagrams for continuous frame action, something not generally done in the United States until the 1920's. James M. Cutts, P.E., a structural engineer employed by the Navy in 1980 to examine the structural soundness of Isherwood Hall consulted with the American Concrete Institute on the historic significance of Isherwood and commented, "The information that we have gathered to date indicate that there is no known structure still standing built with the Hennebique system. Also, there does not appear to be any known drawings of other structures built with the Hennebique system."

Subjects
Military Education
Navies
Educational Facilities


Related Names
Flagg, Ernest
Isherwood, Benjamin Franklin
Noel Construction Company
Harrison & Palmer, Incorporated
RTKL
Hennebique, Francois
Unknown, Photographer
Earle, Lawrence P., Historian


Collection
Historic American Buildings Survey (Library of Congress)

Contents
Photograph caption(s): 
1. EXTERIOR, ISHERWOOD COMPLEX, GENERAL VIEW
2. EXTERIOR, ISHERWOOD COMPLEX, FROM NORTHWEST
3. ISHERWOOD HALL, FROM ROOF OF NIMITZ HALL
4. EXTERIOR, SOUTH FRONT
5. EXTERIOR, SOUTH FRONT AND EAST SIDE
6. EXTERIOR, NORTHEAST CORNER, REAR VIEW
7. EXTERIOR, CORNICE DETAIL
8. EXTERIOR, ENTRANCE ARCH
9. EXTERIOR, DETAIL OF U.S. NAVAL ACADEMY SEAL
10. EXTERIOR, DOOR DETAIL, NORTHEAST SIDE
11. EXTERIOR, WINDOW DETAIL
12. EXTERIOR, CORNER DECORATION
13. EXTERIOR, LAMP DETAIL
14. INTERIOR, SHOWING ROOF STRUCTURE
15. INTERIOR, STAIRWELL
16. INTERIOR, CLASSROOM AREA
17. INTERIOR, CLASSROOM LABORATORY
18. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 EXTERIOR, FRONT ELEVATION
19. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis MD) Ernest Flagg, Architect, c. 1905) EXTERIOR, REAR ELEVATION
20. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 EXTERIOR, NORTHEAST ELEVATION
21. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 EXTERIOR, SOUTHWEST ELEVATION
22. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 CROSS SECTION OF NORTHEAST ELEVATION
23. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 CROSS SECTION OF REAR ELEVATION
24. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 FOUNDATION PLAN
25. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 SUPPLEMENTARY FOUNDATION PLAN
26. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 FIRST FLOOR PLAN C. 1905
27. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Hines, Delineator, May 1913 FIRST FLOOR PLAN, 1913
28. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) L.L. Merrill, Delineator, 1960 FIRST FLOOR PLAN, 1960
29. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 SECOND FLOOR PLAN, C. 1905
30. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Harper, Delineator, May 1913 SECOND FLOOR PLAN, 1913
31. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) L.L. Merrill, Delineator, 1960 SECOND FLOOR PLAN, 1960
32. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 THIRD FLOOR PLAN, C. 1905
33. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Hines, Delineator, 1913 THIRD FLOOR PLAN, 1913
34. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) L.L. Merrill, Delineator, 1960 THIRD FLOOR PLAN, 1960
35. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, c. 1905 ROOF PLAN, C. 1905
36. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) W.J. Curran, Delineator, May 1913 ROOF PLAN, 1913
37. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Hennebique, Delineator, May 1902 CROSS SECTIONS OF STRUCTURE
38. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Delineator unknown, Date unknown CROSS SECTIONS OF ROOF
39. Photocopy of drawing (From Department of Navy, Public Archives, Annapolis, MD) Ernest Flagg, Architect, January 1903 CROSS SECTIONS SHOWING TRUSSES


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