#Norway is about to open the world's longest purpose-built bicycle and pedestrian tunnel in Bergen.

It's 2.8 km (1.7 miles) long, and filled with art...

It was conceived as an "escape tunnel" for an adjoining tunnel that carries light rail. Then somebody thought, why not open it to non-automobile traffic?

https://www.euronews.com/green/2023/05/03/car-free-future-europes-longest-cycle-tunnel-aims-to-cut-traffic-in-this-norwegian-city?utm_source=substack&utm_medium=email

Takes 10 minutes to ride, 35 or so to walk.

See inside the arty new bike tunnel that's the longest in Europe

Bergen's pedestrian and bike tunnel is now open to the public.

euronews
The Snoqualmie Iron Horse Tunnel near #seattle is longer at 2.5 miles, but it wasn't purpose builtβ€”it's a rail-to-trail refit.
@straphanger of two minds on those. I like trails but we have such a shortage of rail capacity in a lot of areas, particularly rural ones, to loosing rail right of ways stings.