Trezzo Bridge | |
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![]() 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 | |
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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]