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- 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.
- Date Issued:
- [1923 TO 1924]
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- Built by Thomas Telford over the river Severn.
- Date Issued:
- 1827-01-01T00:00:00Z
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- Located in the Haute-Savoie department in the Rhône-Alpes region of France.
- Date Issued:
- [1908 TO 1912]
- 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
- 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:
- 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).
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- Design: St. Lawrence Bridge Co.; Engineers: Henri Vautelet, Maurice Fitzmaurice, Ralph Modjeski, Charles MacDonald, Charles N. Monsarrat, and C.C. Schneider; After the collapse of the 1st bridge the Canadian government took over the project and appointed a board of engineers which included Henri Vautelet, Maurice Fitzmurice, and Ralph Modjeski. However, by the time of the bridge's completion Ralph Modjeski was the only original board member still involved with the project. A new design was chosen for the bridge by the St. Lawrence Bridge Co. which involved building the two sides of the bridge then floating the center span into place and lifting it up from the river with the use of jacks. The first attempt to lift the center ended with its collapse on Sept. 11, 1916, due to a steel casting failure. A new span was quickly created and the bearings re-designed so that the 2nd attempt was successful and the bridge was completed in 1917. At 1800 ft the Quebec Bridge has the longest cantilever span in the world. For more information see: William D. Middleton, The Bridge at Quebec (Bloomington: Indiana Univ. Press, 2001)
- Data Provider:
- University of Michigan. Libraries
- Collection:
- Art, Architecture and Engineering Library, Lantern Slide Collection
- Notes:
- Built from 1912 to 1915 for the Delaware, Lackawanna & Western Railroad by Flickwir and Bush Inc. it is also known as the Nicholson Bridge and is one of the largest concrete bridges in the world.
- 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
