Alnö bridge

The Alnö Bridge extends 1,042 meters across the Gulf of Bothnia, connecting the island of Alnö to the Swedish mainland through reinforced concrete structures.

When the bridge opened on October 24, 1964, it held the record as the longest bridge in Sweden, marking a new era for transportation infrastructure.

The bridge construction transformed the island community from its agricultural and fishing roots into a more connected residential area with doubled summer populations.

Regular inspections and maintenance work ensure the structural integrity of the bridge, which serves thousands of vehicles, cyclists, and pedestrians daily.

The bridge stands near geological formations containing rare carbonatite volcanic complexes from an eruption that occurred 570 million years ago.

Location: Sundsvall Municipality

Inception: October 24, 1964

Made from material: reinforced concrete

GPS coordinates: 62.43278,17.39806

Latest update: September 23, 2025 16:45