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Ohio

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Pandora vicinity

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Mallaham Bridge, County Route M-6 spanning Riley Creek, Pandora, Putnam County, OH



See 27 maps of this location


B&W Photos

HB976001
BWPhotos 352819

HB976002
BWPhotos 352820

HB976003
BWPhotos 352821

HB976004
BWPhotos 352822

HB976005
BWPhotos 352823

HB976006
BWPhotos 352824

HB976007
BWPhotos 352825

HB976008
BWPhotos 352826

HB976009
BWPhotos 352827

HB976010
BWPhotos 352828

HB976011
BWPhotos 352829

HB976012
BWPhotos 352830

HB976013
BWPhotos 352831


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Item Title


Location
County Route M-6 spanning Riley Creek, Pandora vicinity, OH

Find maps of Pandora, OH


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER OH-88
Unprocessed field note material exists for this structure (N38).
Building/structure dates: 1876 initial construction
Significance: The bridge is an example of "Morrison's Patent Wrought Iron Arch Truss Bridge," based on a patent granted David H. Morrison in 1867. Unique among bowstring arches, this design used vertically-oriented I-beam flanges to form the bow. Morrison, founder of the Columbia Bridge Works of Dayton, Ohio, was one of the most important bridge engineers and manufacturers in 19th century Ohio.

Subjects
Vehicular Bridges


Related Names
Morrison, David H.
Columbia Bridge Works


Collection
Historic American Engineering Record (Library of Congress)

Contents


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