The Allegheny Aqueduct was John A. Roebling's first wire cable suspension bridge.[1] It was built in 1844 near the later Fort Wayne Railroad Bridge as a replacement for a wooden covered bridge aqueduct over the Allegheny River in Pittsburgh, part of the Pennsylvania Canal.
Allegheny Aqueduct | |
|---|---|
| Coordinates | 40°26′54″N 79°59′46″W / 40.4482°N 79.9961°W |
| Carries | Pennsylvania Canal |
| Crosses | Allegheny River |
| Locale | Pittsburgh |
| Other name(s) | Allegheny Aqueduct Bridge |
| Characteristics | |
| Design | suspension bridge |
| Material | Wood, charcoal iron wire rope |
| No. of spans | 7 of 162 feet each |
| History | |
| Designer | John A. Roebling |
| Construction start | 1844 |
| Construction end | 1845 |
| Closed | 1861 |
| Location | |
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References
edit- ^ Gibbon, Donald L. (May 2006). "How Roebling Did It: Building the World's First Wire-Rope Suspension Aqueduct in 1840s Pittsburgh". JOM. 58 (5): 20–29. doi:10.1007/s11837-006-0018-8. S2CID 108466975.