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- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- The Bollman truss span was designed by engineer Wendel Bollman in 1852 that allowed the use of iron for bridges rather than wood, and was adopted for many railroad bridges.
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- The first bridge was built from 1887 to 1888 as a three-span Whipple through truss. It was rebuilt as a Pennsylvania through truss in 1915.
- Date Issued:
- 1915-01-01T00:00:00Z
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- From the early 19th century on many plans had been proposed for building a bridge at this site, but it was not until the early 20th century that plans for a bridge began to be carried out. Many commissions and committees in both Pensylvania and New Jersey were formed and in 1918 the consulting engineers Waddell and Son were hired to examine the possibility of a Delware River crossing. In 1919 the states of Philadelphia and New Jersey worked together to create the Delaware River Bridge Joint Commission and they were given permission to build. The chief engineer for the bridge was Ralph Modjeski with Clement E. Chase as assistant engineer, Leon S. Moisseiff as the engineer of design, and Paul P. Cret as the architect. By 1921 a site for the bridge was chosen and construction began in January of 1922. The bridge opened on July 1, 1926 and is today known as the Benjamin Franklin Bridge. For more information see: Delaware River Port Authority, The Delaware River Bridge Twenty-Fifth Anniversary (not published, 1951).
- Date Issued:
- [1921 TO 1926]
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- The largest brick bridge in the world, Goltzsch Valley Bridge was designed by engineers Johann Andreas Schubert and Robert Wilke.
- Date Issued:
- [1845 TO 1851]
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Date Issued:
- [1884 TO 1894]
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- Designing Engineer: Hugh E. Young Consulting Engineer: Lewis M. Gram; The former bridge at Jefferson Avenue was a narrow swing bridge that needed to be replaced by around 1910. However, construction did not begin on the new bridge until 1920 and a detour for Jefferson Avenue was needed. The detour was created up stream with an old truss bridge from the Michigan Central Railroad, and was floated into place. Construction then began on a single trunnion, double-leaf bascule bridge that opened in 1922.
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- From the early 19th century on many plans had been proposed for building a bridge at this site. In 1870 Thomas Say Speakman presented a plan for a bridge. His plan was reported as a gaurenteed project complete with an engraving of the future bridge in the Philadelphia newspaper The Bee on July 6, 1870. Yet it was not until the early 20th century that plans for a bridge began to be carried out. Many commissions and committees in both Pensylvania and New Jersey were formed and in 1918 the consulting engineers Waddell and Son were hired to examine the possibility of a Delware River crossing. In 1919 the states of Philadelphia and New Jersey worked together to create the Delaware River Bridge Joint Commission and they were given permission to build. The chief engineer for the bridge was Ralph Modjeski with Clement E. Chase as assistant engineer, Leon S. Moisseiff as the engineer of design, and Paul P. Cret as the architect. By 1921 a site for the bridge was chosen and construction began in January of 1922. The bridge opened on July 1, 1926 and is today known as the Benjamin Franklin Bridge. For more information see: Delaware River Port Authority, The Delaware River Bridge Twenty-Fifth Anniversary (not published, 1951).
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
