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Trezzo Bridge | |
|---|---|
 Reconstructive drawing (surviving parts in dark grey)[1] | |
| Coordinates | 45°36′42″N 9°31′20″E / 45.61167°N 9.52222°E |
| Carries | Two overlapped lanes for pedestrian, horses, carts, and wagons |
| Crosses | Adda River |
| Locale | Trezzo sull'Adda, Capriate San Gervasio |
| Characteristics | |
| Design | Arch bridge |
| Material | Sandstone |
| Total length | 72.25 metres (237.0 ft) |
| Width | 9 metres (30 ft) |
| Height | 20.7 metres (68 ft) intrados |
| Longest span | 72.25 metres (237.0 ft) |
| History | |
| Designer | unknown |
| Constructed by | Bernabò Visconti |
| Opened | 1377 |
| Closed | 1416 |
| Location | |
 | |
The Trezzo sull'Adda Bridge or Trezzo Bridge was a medieval bridge at Trezzo sull'Adda in Lombardy, Italy, spanning the Adda river. Completed in 1377, the single-arch bridge held the record for the largest span for over four hundred years, until the beginnings of the Industrial Age,[2][3][4][5] while it was not until the early 20th century that masonry bridges with larger openings were constructed.[6]
- ^ Crivelli (1886), table 1.
- ^ Straub (1992), pp. 79f.
- ^ Hill (1984), p. 72.
- ^ Garrison (1999), p. 123.
- ^ Fernández Troyano (2003), p. 93.
- ^ Lay (1992), p. 268.