St. Charles Air Line Bridge
 |
St. Charles Air Line Bridge | |
|---|---|
Chicago, Illinois | |
| Official name | St. Charles Air Line Bridge |
| Maintained by | Canadian National Railway |
| Characteristics | |
| Design | Strauss Trunnion bascule lift span |
| Longest span | Originally 260 feet (79 m), later shortened to 220 feet (67 m) in 1930 |
| History | |
| Designer | Joseph Strauss |
| Opened | 1919 |
| Location | |
 | |
The St. Charles Air Line Bridge is a Strauss Trunnion
Chicago, Illinois
.
Built as part of the
St. Charles Air Line Railroad by the American Bridge Company
in 1919, the bridge originally had a span of 260 feet (79 m). This bridge held the world record for longest bascule-type span until 1930, when it was shortened to 220 feet (67 m) during a relocation as a result of straightening the river channel. The chief design engineer of the original bridge was Leonard O. Hopkins.
Photo gallery
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Chicago landscape with a boat -
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St. Charles Air Line Bridge, May 17, 2022.
See also
- The adjacent B&OCT Bascule Bridge, with more information about the history of both bridges
- List of bridges documented by the Historic American Engineering Record in Illinois
Further reading
- "Counterweight Repair of Historic St. Charles Air Line Bridge" (PDF). Concrete Repair Bulletin. 28 (6): 9–13. November 2015.
External links
- Historic American Engineering Record (HAER) No. IL-157, "St. Charles Air Line Bridge"
- Historic Bridges of Michigan and Elsewhere
- [1]
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