ChatGPT, first said that it's from rock protection (very unlikely), then once corrected, - Good observation — if there are no cliffs or rocks nearby, then the short tunnels you’re seeing in Norway are most likely built primarily for snow avalanche protection, not rockfall. ️ Why Avalanche Protection Is Needed Without Visible Rocks: Even if the roadside looks relatively flat, here's why a protection tunnel may still be there: ❄️ Avalanche Zones Without Cliffs In mountainous or snow-heavy regions, snow can build up on sloping hillsides high above the road — even if they’re not rocky. When that snow releases, it sweeps down rapidly, potentially burying or destroying parts of the road. A protection gallery (short tunnel) ensures vehicles and drivers aren’t caught in the avalanche path. ***************************************************************** One at 32:40 mark and the next one, 1-2 Kms away at 34:10 A promissing Russian actor that died in a muddy avalanche : https://en.wikipedia.org/wiki/Sergei_Bodrov_Jr Not that such a shelter would help from a muddy one, would get you trapped.