A3/A4 Autobahnbrücken

The A3 and A4 highway bridges in the Zürich area are reinforced-concrete viaducts built during Switzerland's national motorway expansion in the 1960s and 1970s. They form a key transit corridor connecting Zürich's urban core to surrounding regions and carry heavy daily traffic loads. Beyond their transport function, these are purely utilitarian structures with no cultural or touristic significance.