Tiered arch bridge12/19/2023 ![]() Construction started in June 1875, and was opened to rail traffic at the end of July 1875.Īt 4:27 PM EST on December 10th, 2017, the last train passed over the old structure. After a fire destroyed the bridge in 1875, a new iron bridge was built. The arch span was built in California and floated 1.7 miles downstream of. ![]() At the time, it was the longest and tallest wooden bridge in the world. Tier 6 (longer but reduced by months/years). It can be considered a bridge between the arch bridge and a suspension bridge. Vertical ties connected to the arch support deck from above. The Portageville Bridge has a storied past, originally built in 1952 at a cost of $175,000. Tied arch bridge (also called a bowstring-arch bridge or bowstring-girder bridge) is a type of bridge that consists of rib on both side of the deck, and one tie beam on both arches that support deck.
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