Colossus Bridge over the Schuylkill River, Philadelphia and Bridge over the Delaware River, New Hope

Colossus Bridge over the Schuylkill River, Philadelphia and Bridge over the Delaware River, New Hope

Glass lantern slide of drawings of two wooden bridges designed by Lewis Wernwag. The Colossus Bridge over the Schuylkill River in Philadelphia was built in 1812 and burned down in 1838. At the time of its construction, it was the longest single-span wooden bridge in America. The Bridge over the Delaware River in New Hope was built in 1813-14. The image is reproduced from "American Railroad Bridges" by Theodore Cooper. Transactions of the American Society of Civil Engineers," vol. 21, no. 418, July, 1889. Used to illustrate the course "Civil Engineering Structures" which was taught between 1893-1950 at the Wagner Free Institute of Science, Philadelphia, Pa.

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Lantern Slides

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LS0124

Wagner Free Institute of Science Library & Archives. 1700 W Montgomery Ave. Philadelphia, PA 19121. Contact the Library at 215-763-6529 x12 or library@wagnerfreeinstitute.org

Wagner Free Institute of Science

This Digital Object is provided in a collection that is included in POWER Library: Pennsylvania Photos and Documents, which is funded by the Office of Commonwealth Libraries of Pennsylvania/Pennsylvania Department of Education.