Sandö Bridge, Arch bridge in Kramfors Municipality, Sweden.
Sandö Bridge is a concrete arch bridge spanning 811 meters across the water with a main arch reaching approximately 42 meters high. The structure measures 10 meters wide and links the communities of Lunde and Klockestrand through its long, graceful span.
Construction finished in 1943, with the completed structure holding the world record as the longest single-span concrete arch bridge at that time. The project was marked by tragedy when the temporary formwork collapsed in 1939, resulting in 18 worker deaths.
The bridge became a regional landmark so significant that Kramfors Municipality adopted a bridge design into their coat of arms. For residents of the surrounding villages, it represented a vital link between their communities.
The bridge serves as a passable road crossing that once functioned as part of the E4 European route until 1997, when traffic was redirected elsewhere. Visitors can traverse it on foot or by car to experience the views and observe the engineering design from different vantage points.
For several years after completion, this was the world's longest single-span concrete arch bridge, demonstrating the capabilities of Swedish engineering expertise. The fact that it was later incorporated into the regional coat of arms shows how deeply it became woven into local identity.
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