About
Title
Walnut Lane Bridge Under Construction, Voussoirs of the North Rib
Subject
- Civil engineering--Study and teaching
- Bridges--Design and construction
- Concrete bridges
- Arch bridges
- Lantern slides
Description
Glass lantern slide of a black and white photograph of the Walnut Lane Bridge during construction. The image shows blocks of the concrete arch sections on top of the falsework. Workers are utilizing wooden planks and a pulley to aid in construction between the falsework arch and the concrete temporary foundation piers, which are seen to the left of the arch. The concrete arch bridge carries Walnut Lane over the Wissahickon connecting Germantown and Roxborough. It was a Department of Public Works project designed by George S. Webster and Henry H. Quimby. When it opened in 1908, it was the longest and highest concrete arch bridge in the world. Used to illustrate the course "Civil Engineering Structures" which was taught between 1893-1950 at the Wagner Free Institute of Science, Philadelphia, Pa.
Location Covered
- Wissahickon Creek (Pa.)
- Fairmount Park (Philadelphia, Pa.)
Time Period Covered
1906-1908
Original Format
Lantern Slides
Contact
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
Contributing Institution
Wagner Free Institute of Science
Sponsorship
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.
